%0 Journal Article %J المحترف %D 2021 %T استخدام تقنية الواقع المعزز بواسطة تطبيق أي جاك على تحسين تعلمات الطلبة نظريا وتطبيقيا في مادة الثقافة البدنية %A حزحازي كمال %A سحساحي مهدي %A حميدة صورية %X يهدف البحث الى التعرف على اثر تطبيق تقنية الواقع المعزز في تدريس مادة الثقافة البدنية لطلبة السنة الثانية ليسانس، في جامعة باتنة 2 خلال الموسم الجامعي الحالي2020/2021، و تم استخدام المنهج الشبه التجريبي. على عينة تتكون من 20طالب، مقسمة الى مجموعتين، وتوصلنا الى ان هناك فروق بين نتائج الطلبة في الاختبارين النظري والتطبيقي وان لاستخدام تقنية الواقع المعزز بواسطة تطبيقEyeJack أثر كبير على اكتساب الطلبة في مادة الثقافة البدنية على المستويين النظري والتطبيقي. %B المحترف %V 8 %P 490-507 %G eng %U https://www.asjp.cerist.dz/en/article/163176 %N 3 %0 Journal Article %J مجلة العلوم الاجتماعية والانسانية %D 2021 %T اشكالية حرق الدهون بين تمارين الكار ديو ورياضة كمال الأجسام (مقاربة وصفية تحليلية) %A سحساحي مهدي %X أصبحنا نرى في الآونة الاخيرة ان الكثير من الاشخاص اصبحت تنموا لديهم الرغبة في حرق الدهون الزائدة في الجسم والتي تعود الى عديد الاسباب وتختلف من شخص الى اخر ومن مجتمع الى اخر تبعا الى نمط وطريقة المعيشة. لكن الكثير منهم يصطدم بعلامة استفهام كبيرة هل الحل يكمن في تمارين الكارديو ام يكمن في الرياضات الخاصة برفع الاثقال والأوزان في صورة رياضة كمال الاجسام؟ لذا أردنا ان نقوم بهذه الدراسة الاستقصائية للتوصل الى أكثر معلومات حول هذا الموضوع كون هاتين الطريقتين هما الاكثر شعبية بين الممارسين الراغبين في الحصول على الجسم المثالي والخالي من الدهون الزائدة.  %B مجلة العلوم الاجتماعية والانسانية %V 22 %P 83-96 %G eng %U https://www.asjp.cerist.dz/en/article/161697 %N 1 %0 Conference Proceedings %B الملتقى الدولي حول مساهمة العلوم الطبية في تطوير الأداء الرياضي النخبوي ،جامعة ام البواقي يومي 29 و 30ماي %D 2021 %T الإسعافات الأولية -اساسياتها واهم إجراءاتها الفعالة ميدانيا %A حزحازي كمال %B الملتقى الدولي حول مساهمة العلوم الطبية في تطوير الأداء الرياضي النخبوي ،جامعة ام البواقي يومي 29 و 30ماي %C Oum El-Bouaghi, Algérie %G eng %0 Conference Proceedings %B "الملتقى الدولي الافتراضي الثاني حول "مساهمة العلوم البيوطبية في تطوير الأداء الرياضي النخبوي %D 2021 %T الإسعافات الأولية واساسياتها واهم إجراءاتها الفعالة ميدانيا %A سحساحي مهدي %B "الملتقى الدولي الافتراضي الثاني حول "مساهمة العلوم البيوطبية في تطوير الأداء الرياضي النخبوي %C Oum El-Bouaghi, Algérie %G eng %0 Journal Article %J دراسات نفسية وتربوية %D 2021 %T البنية العاملية لإتجاهات الأساتذة الجامعيين نحو إستخدام التعليم عن بعد خلال فترة الحجر الصحي المفروض بسبب وباء كورونا المستجد (covid19) %A قادري عبد الحفيظ %A قادري عبد الحفيظ %A حميدة صورية %X هدفت الدراسة لتبيان البنية العاملية لإتجاهات الأساتذة الجامعيين نحو التدريس عن بعد في ظل الحجر الصحي المفروض بسبب جائجة كوفيد-19 للسنة الجامعية 2019-2020، تم إستخدام المنهج الوصفي، وتكونت عينة الدراسة من 431 أستاذ جامعي من مختلف جامعات الوطن ، وزع عليهم إستبيان، لتقصي آرائهم، وبعد جمع البيانات أجري التحليل العاملي بطريقة تحليل المكونات الرئيسية، وقد أسفر الحل العاملي عن وجود ثلاثة عوامل حيث تم تسميتها وترتيبها حسب قيمة الجذر الكامن، حيث تكون عامل أول سمي (فوائد التعليم عن بعد)، ثم عامل ثاني سمي (الإتجاهات نحو الدروس على الخط) ، وثالثا (الأنترنت واستخدام التعليم عن بعد). -الكلمات الدالة: البنية العاملية؛ الإتجاهات، التعليم عن بعد؛ الحجر الصحي؛ وباء كورونا. %B دراسات نفسية وتربوية %V 14 %P 716-732 %G eng %U https://www.asjp.cerist.dz/en/article/163228 %N 2 %0 Journal Article %J مجلة الابداع الرياضي %D 2021 %T : التطور الرقمي لمنافسات السباحة الحرة 100 و 400متر عبر تاريخ الألعاب الأولمبية الحديثة من دورة أثينا 1896 إلى دورة ريو 2016 %A حزحازي كمال %A قادري عبد الحفيظ %A حميدة صورية %X الورقة عبارة عن دراسة تتبعية، للتطور الرقمي لمنافسات السباحة الحرة 100م و 400م عبر تاريخ الالعاب الاولمبية الحديثة، من دورة اثينا 1896 الى دورة ريو 2016 ،بالإضافة الى ابراز اهم مراحل التي عرفت معدل التحسن والتطور. واهم الاسباب المساهمة في ذلك. و التعرف على الدول الاكثر تتويجا في تاريخ المنافستين. واستخدمنا في هذه الدراسة المنهج التاريخي، معتمدين على سجلات اللجنة الاولمبية الدولية CIO .وقمنا بتحليل الارقام المسجلة من طرف عينة قصدية قوامها 158 من السباحين الأولمبيين الذكور، وتوصلنا ان ارقام سباحي 100م و 400م حرة عرفت تحسنا مستمرا، حسب المنحنى البياني للنتائج، وقسمنا ذلك على مراحل03 الاولى من التطور من أثينا 1896 الى باريس 1924وأجريت اغلب المنافسات خارج المسابح، اما الثانية من أمستردام 1928م الى ميونيخ 1972وعرفت تطورا ملحوظا و المرحلة الاخيرة ما بعد ميونيخ 1972م وهي المرحلة التي شهدت تطورا متدرجا ، كما توصلنا الى ان المنتخبات الاكثر تتويجا في المسابقتين هي الولايات المتحدة الامريكية بمجموع (22ميدالية) و استراليا بــــ (17 ميدالية). %B مجلة الابداع الرياضي %V 12 %P 167-187 %G eng %U https://www.asjp.cerist.dz/en/article/153232 %N 3 %0 Conference Proceedings %B المؤتمر الدولي (الإفتراضي) الثاني للعلوم والرياضة - جامعة عبد الحميد مهري المنظّم بجامعة قسنطينة 2 ( الرياضة والصحّة ) من 17- 19 ماي %D 2021 %T : التوافق الصحّي ( الجسمي ) وعلاقته بالتوافق الشخصي الإنفعالي لدى عيّنة من ممارسي الرياضات القتالية %A قادري الحاج %B المؤتمر الدولي (الإفتراضي) الثاني للعلوم والرياضة - جامعة عبد الحميد مهري المنظّم بجامعة قسنطينة 2 ( الرياضة والصحّة ) من 17- 19 ماي %C Constantine, Algérie %G eng %0 Journal Article %J مجلة الإبداع %D 2021 %T التوجه المقاولاتي الرياضي لطلبة علوم وتقنيات النشاطات البدنية والرياضية وفق نموذج شابيرو وسوكول %A عبدلي نورالدين %A قادري الحاج %X هدفت هذه الورقة البحثية إلى التعرف على واقع التوجه المقاولاتي الرياضي لدى عينة شملت 36 طالب ماستر من معهد علوم وتقنيات النشاطات البدنية والرياضية بجامعة باتنة 2، بالاعتماد على استبانة صممت وفق نموذج الحدث المقاولاتي لشابيرو وسوكول، وقد تمت معالجة البيانات باستعمال برنامج التحليل الإحصائي SPSS حيث أظهرت النتائج أن اتجاه الطلبة لإنشاء مؤسسة إيجابي وأن لديهم رغبة ونزعة لإقامة مشاريع رائدة في مجال الرياضة رغم وجود عدد من التحديات، فيما يتعلق بقدرتهم على تجسيدها. الكلمات المفتاحية : توجه مقاولاتي رياضي ؛ نموذج الحدث المقاولاتي ؛ طلبة الماستر؛ تربية بدنية ورياضية. %B مجلة الإبداع %V 11 %P 75-88 %G eng %U https://www.asjp.cerist.dz/en/article/156986 %N 1 %0 Conference Proceedings %B الملتقى الوطني بجامعة محمد بوضياف المسيلة يومي12-13ديسمبر %D 2021 %T العينة وطرق اختيارها خلال انجاز بحث علمي %A بن قسمي يعقوب %B الملتقى الوطني بجامعة محمد بوضياف المسيلة يومي12-13ديسمبر %C M’sila, Algérie %G eng %0 Journal Article %J بن بوزة هشام %D 2021 %T المراهقون ورياضة بناء الأجسام من منظور جمالي لياقي وترويحي %A سحساحي مهدي %A جوبر مروان %A بن بوزة هشام %X  لقد أصبح المراهقون في وقتنا الحالي يعانون كثيرا من الفراغ ويجدون صعوبة بالغة لقضاء هذه الأوقات وبالمقابل توجد فئة أخرى من المراهقين ترى في الأنشطة الترويحية خاصة ذات الطابع البدني والرياضي المتنفس الوحيد لصرف المقدار الزائد من الطاقة التي أذا لم يتم استغلالها في الوجه الصحيح قد تؤثر عليهم وعلى حياتهم الشخصية بالسلب. ومن خلال ملاحظتنا الميدانية لواقع ممارسة رياضة بناء الأجسام كنشاط بدني ترويحي عند فئة المراهقين، وجدنا أن هناك إقبالا كبيرا لهذه الفئة على ممارسة هذا النوع من الرياضة ولو على حساب الأنشطة الرياضة الترويحية الأخرى رغم كثرتها وتنوعها. لذا ارتأينا القيام بهذه بدراسة هذه الظاهرة والقيام بزيارة ميدانية لعدد من قاعات رياضة بناء الأجسام من أجل الاطلاع عن قرب على دوافع اقبال هذه الفئة الى هذا النوع من الرياضة وما هي الغايات والاهداف من ذلك %B بن بوزة هشام %V 12 %P 157-176 %G eng %U https://www.asjp.cerist.dz/en/article/152988 %N 2 %0 Journal Article %J مجلة المجتمع والرياضة %D 2021 %T الوعي الصحي لأساتذة قطاع التربية المتقاعدين وعلاقته بمفهوم الذات لبعض الصفات البدنية %A ميمون عيسى %B مجلة المجتمع والرياضة %G eng %0 Journal Article %J مجلة المنظومة الرياضية %D 2021 %T تشخيص ظاهرة السلوك العدواني في الرياضة %A يونس أحمد عماد الدين %A قادري عبد الحفيظ %X إنّ دراسة ظاهرة السلوك العدواني في الرياضة تشكل أهمية بالغة في مجال الدراسات الاجتماعية، ، وما يلاحظ هو ازداد العنف في المجتمع الجزائري بصفة عامة في السنوات الأخيرة وانعكس ذلك سلبا على المجتمع، فالرياضة تعتبر إحدى المجالات الهامة للحد من الظواهر السلبية ، ولمعالجة هذه الظواهر ينبغي فهم طبيعة هذا السلوكات, لذا جاءت دراستنا هذه لتعالج الموضوع وفق وجهة نظر تحليلية لأسباب ودوافع ظهور السلوكات العدوانية في الرياضة الجزائرية ومحاولة تشخيص هذا الداء واقتراح حلول لها كلمات مفتاحية: التشخيص , السلوك العدواني, الرياضة , الملاعب الجزائرية . %B مجلة المنظومة الرياضية %V 8 %P 158-169 %G eng %U https://www.asjp.cerist.dz/en/article/153060 %N 2 %0 Journal Article %J مجلة رصين في الأنشطة الرياضية و علوم الحركة %D 2021 %T حلقات الجودة ودورها في تطبيق مباديء الجودة الشاملة لتطوير التعليم الجامعي في ضوء بعض النماذج (كوفمان، مارش، التميز الأوروبي) %A قادري عبد الحفيظ %A عيسى ميمون %A يعقوب بن قسمي %X هدف البحث الحالي إلى التعرف على دور حلقات الجودة في تطبيق مباديء الجودة الشاملة لتطوير التعليم الجامعي، وكذا التعرف على معيقات تطبيقها وحلول مقترحة، تم التوصل إلى وجود أهمية كبيرة لحلقات لجودة،كما تم التوصل لوجود عوائق مختلفة في تطبيق مبادئها، ليتم التوصية بضرورة وجود إرادة سياسية لإعتماد مبادئ TQM ، وأن تتماشى تلك المبادي مع القيم العربية الإسلامية، بالعمل بطريقة حلقات الجودة قبل تطبيق مبادئ TQMن ووضع معايير للآداءات على مستوى الجامعات و إلتزامها بمعايير الجودة الشاملة. الكلمات المفتاحية: حلقات الجودة، الجودة الشاملة، التعليم الجامعي، النماذج (كوفمان، مارش، التميز الأوروبي). %B مجلة رصين في الأنشطة الرياضية و علوم الحركة %V 2 %P 18-38 %G eng %U https://www.asjp.cerist.dz/en/article/158385 %N 1 %0 Book %D 2021 %T فن كمال الأجسام %A سحساحي مهدي %I دار المثقف للنشر والتوزيع %G eng %0 Journal Article %J مجلة علوم الأداء الرياضي بجامعة سوق أهراس %D 2021 %T قراءة في آليات تعامل الجامعة الجزائرية مع تبعات جائحة كورونا (إجراءات وحلول) %A عيسى ميمون %A مروان جوبر %X في ظل الظروف الاستثنائية التي فرضتها الحالة الوبائية نتيجة تفشي فيروس كورونا المستجد (كوفيد-19)، في منتصف الموسم الجامعي 2019/2020 بالجزائر والعالم، تأتي هذه المداخلة العلمية كقراءة في آليات تعامل الجامعة الجزائرية مع تبعات هذا الظرف، بأخذ جامعة مصطفى بن بولعيد باتنة2 كنموذج، كونها حلقة مهمة في منظومة التعليم والتكوين والتي ليست ببعيدة عن الإجراءات التي تم اتخاذها من طرف الوزارة المعنية. وزارة التعليم العالي والبحث العلمي ، أومن طرف وزارة الصحة والسكان لإتمام الموسم الجامعي ومواصلته بما تقتضيه مصلحة الطالب والأستاذ والدولة، كي لا نقع في سلبيات الغلق التام، الذي لا تحمد عقباه، حيث اتخذت مجموعة من الإجراءات لإنقاذ الموسم والاستمرار في التكوين باعتماد نظام التعليم الجامعي عند بعد بإدراج منصات وأرضيات على المواقع الرسمية للجامعات، تكون نقطة تواصل بين الطلبة والأساتذة والإدارة كوسيلة حديثة للتكوين للحد من تبعات وتأثيرات الغلق الإجباري. %B مجلة علوم الأداء الرياضي بجامعة سوق أهراس %V 3 %P 291-303 %G eng %U https://www.asjp.cerist.dz/en/article/165977 %N 3 %0 Journal Article %J مجلة المسار الرياضي %D 2021 %T قراءة في اهم التعديلات المدرجة على قانون منافسات الاتحاد الدولي للسباحة بعد مؤتمر2013 و2017Page de garde, sommaire et éditorial %A حزحازي كمال %A معلم عبد المالك %A سايح مدور عبد العالي %X سنقدم في هذا المقال قراءة لاهم التعديلات المدرجة على قانون تسيير منافسات الاتحاد الدولي للسباحة بعد مؤتمريه المنعقدين سنة 2013 و 2017 ، من خلال عرض التعديلات التي طرأت على القانون وكذا الجديدة التي أدرجت فيه. كما نقدم تفسير وتحليل لهذه التعديلات المدرجة من وجهة نظر فنية وتنظيمية وهذا بالاعتماد على اخر نسختين من قانون منافسات الاتحاد الدولي السباحة FINA لعامي 2013 والنسخة المعدلة منه عام 2017. الكلمات المفتاحية: قراءة ، التعديلات المدرجة ، قانون الاتحاد الدولي لمنافسات السباحة %B مجلة المسار الرياضي %V 4 %P 28-41 %G eng %U https://www.asjp.cerist.dz/en/article/173898 %N 1 %0 Journal Article %J مجلة العلوم و التكنولوجية للنشاطات البدنية و الرياضية %D 2021 %T مستوى القلق عند الرياضيين الجزائريين خلال فترة الحجر الصحي المفروض بسبب جائحة كوفيد-19 %A يونس أحمد عماد الدين %A قادري عبد الحفيظ %X تهدف هذه الدراسة إلى التعرف على مستوى القلق عند الرياضيين الجزائريين خلال فترة الحجر الصحي المفروض بسبب جائحة كوفيد-19، ولهذا الغرض استخدمنا المنهج الوصفي التحليلي على عينة متكونة من 623 لاعبا من صنف الأكابر بمختلف الرياضات التنافسية، تم اختيارها بطريقة عشوائية، لجمع البيانات استخدمنا أداة الاستبيان. بعد جمع النتائج ومعالجتها إحصائيا تم التوصل إلى وجود مستوى مرتفع من القلق، و وجود فروق ذات دلالة إحصائية تعزى لمتغير الجنس، ولا توجد فروق ذات دلالة إحصائية تعزى لمتغير أسلوب الرياضة (فردي، جماعي). وعلى هذا الأساس أوصت الدراسة بضرورة الاهتمام بالحالة النفسية للرياضيين الجزائريين خلال فترة الحجر الصحي والعودة للمنافسات والتدريبات. %B مجلة العلوم و التكنولوجية للنشاطات البدنية و الرياضية %V 18 %P 234-245 %G eng %U https://www.asjp.cerist.dz/en/article/155781 %N 3 %0 Journal Article %J المحترف %D 2021 %T مشاكل الضبط الصفي لتلاميذ الطور المتوسط خلال حصة التربية البدنية والرياضية وكيفيات حلها من وجهة نظر الأساتذة. دراسة وصفية لبعض متوسطات دا %A قادري عبد الحفيظ %A ميمون عيسى %X دفت الدراسة إلى التعرف على أهم مشاكل الضبط الصفي لتلاميذ مرحلة التعليم المتوسط خلال حصة التربية البدنية والرياضية، وكيفيات حلها من وجهة نظر الأساتذة. وقد تم التوصل إلى أهم مشاكل الضبط الصفي منها نقص تكوين الأستاذ في المجال النفسي، وعدم اعتماده على التخطيط الجيد. و تم اقتراح حلول للمشاكل المكتشفة الكلمات المفتاحية: الضبط الصفي ؛ تلاميذ الطور المتوسط ؛ حصة التربية البدنية والرياضية. %B المحترف %V 8 %P 57-71 %G eng %U https://www.asjp.cerist.dz/en/article/163151 %N 3 %0 Journal Article %J مجلة العلوم الاجتماعية والانسانية جامعة باتنة 1 %D 2021 %T مقارنة الذكاءات المتعددة بين الأطفال الممارسين وغير الممارسين للنشاط الرياضي بسن 6 سنوات %A يونس أحمد عماد الدين %A قادري عبد الحفيظ %X جاءت هذه الدراسة لمعرفة ما إذا كان هناك فروق في الذكاءات المتعددة بين الأطفال بسن 6 سنوات الممارسين وغير الممارسين للنشاط البدني الرياضي، وذلك بتطبيق مقياس شيرر للذكاءات المتعددة على عينة متكونة من ستين تلميذا مقسمين على مجموعتين، المجموعة الأولى للأطفال الممارسين للنشاط الرياضي والمجموعة الثانية للأطفال غير الممارسين، ولقد تم الاعتماد على المنهج الوصفي المقارن كمنهج مناسب لهذه الدراسة. وتوصلت الدراسة في الأخير إلى وجود فروق في الذكاءات المتعددة بين التلاميذ الممارسين وغير الممارسين جزئيا، وعدم وجود فروق بين التلاميذ الممارسين للنشاط الرياضي حسب نوع النشاط، وأخيرا عدم وجود فروق بين التلاميذ غير الممارسين للنشاط الرياضي حسب الجنس. %B مجلة العلوم الاجتماعية والانسانية جامعة باتنة 1 %V 226 %P 797-816 %G eng %U https://www.asjp.cerist.dz/en/article/176655 %N 2 %0 Journal Article %J Traitement du Signal %D 2021 %T Euclidean Distance Versus Manhattan Distance for New Representative SFA Skin Samples for Human Skin Segmentation %A Soltani , Ouarda %A BENABDELKADER, SOUAD %X

The human color skin image database called SFA, specifically designed to assist research in the area of face recognition, constitutes a very important means particularly for the challenging task of skin detection. It has showed high performances comparing to other existing databases. SFA database provides multiple skin and non-skin samples, which in various combinations with each other allow creating new samples that could be useful and more effective. This particular aspect will be investigated, in the present paper, by creating four new representative skin samples according to the four rules of minimum, maximum, mean and median. The obtained samples will be exploited for the purpose of skin segmentation on the basis of the well-known Euclidean and Manhattan distance metrics. Thereafter, performances of the new representative skin samples versus performances of those skin samples, originally provided by SFA, will be illustrated. Simulation results in both SFA and UTD (University of Texas at Dallas) color face databases indicate that detection rates higher than 92% can be achieved with either measure.

%B Traitement du Signal %V 38 %P 1843-1851 %G eng %U https://www.iieta.org/journals/ts/paper/10.18280/ts.380629 %N 6 %0 Conference Proceedings %B Colloque international organisé à l’université Constantine I les 24 et 25 Mars %D 2021 %T Apprendre en ligne via la plateforme Moodle : ambitions et réalités. Covid-19 : De la crise vers la créativité dans l’enseignement supérieur %A ARRAR, S %B Colloque international organisé à l’université Constantine I les 24 et 25 Mars %C Constantine, Algérie %G eng %0 Conference Proceedings %B VIe Colloque international Langue et réalité les 22-26 mars 2021 organisé par le département des langues romanes Vladimir Gak de l’Université pédagogique d’État de Moscou %D 2021 %T De la contextualisation à l'interculturalité : Un autre regard sur le manuel scolaire algérien de français %A MEZIANI, A %B VIe Colloque international Langue et réalité les 22-26 mars 2021 organisé par le département des langues romanes Vladimir Gak de l’Université pédagogique d’État de Moscou %C Moscou, Russie %G eng %0 Journal Article %J Revue Dirassat Faniya %D 2021 %T De La Précellence Littéraire à L'efficience Paralittéraire %A Lebbal, Sara %X La triade compilant : finalité, langue, horizons d’attente, a longtemps constitué un soubassement probant pour la littérature. Ces notions définitoires se sont écaillées au fil des années suite à la diachronie sociétale qui a fait naitre des exigences concomitantes au changement survenu. En effet, la production littéraire à finalité esthétique, aspirant à la précellence linguistique et travaillant sur la dimension pathémique du lecteur a laissé place à la paralittérature dont la finalité est à prégnance commerciale privilégiant une langue véhiculaire faible en matière d’ornement stylistique et des horizons d’attente gérés par les parangons de l’offre et la demande. A travers cette contribution, à caractère spéculatif, nous proposons de jeter un regard cursif sur l’odyssée du texte allant de l’ascétisme littéraire à son ouverture cinématographique. %B Revue Dirassat Faniya %V 6 %P 01-07 %G eng %U https://www.asjp.cerist.dz/en/article/172317 %N 1 %0 Conference Proceedings %B Communication dans colloqué international en ligné, Université Batna 2 %D 2021 %T De l’école primaire à l’université : évaluer les compétences au XXIe siècles, quels défis et quelles perspectives pour la classe de FLE n Algérie ? %A HAMAIZI, B %B Communication dans colloqué international en ligné, Université Batna 2 %C Batna, Algérie %G eng %0 Conference Proceedings %B Colloque international organisé par les universités de Aïn Temouchent et de Mostaganem le 17 Mars %D 2021 %T De l’hybridation dans l’enseignement supérieur à l’ère de la pandémie du Covid-19. Enseignement supérieur et pandémie Covid-19. À l’ère du confinement et post-confinement, quelles réflexions, quelles perspectives ? %A ARRAR, S %B Colloque international organisé par les universités de Aïn Temouchent et de Mostaganem le 17 Mars %G eng %0 Journal Article %J Psychological & Educational Studies %D 2021 %T Défis et perspectives de l’enseignement à distance au supérieur algérien: cas de l’ENS de Sétif pendant la crise pandémique du COVID-19 Challenges and perspectives of distance teaching in Algerian higher education: A case study on ENS in %A Arrar, Salah  %X La présente recherche s’inscrit dans le cadre général de la didactique du fran\c cais et se focalise plus particulièrement sur les paramètres et les modalités inhérents à l’enseignement à distance en contexte universitaire algérien. En effet, le recours à cette méthode pédagogique alternative se veut un choix judicieux en vue d’assurer la continuité pédagogique pendant la crise sanitaire mondiale liée à la pandémie du COVID-19. Par ailleurs, notre travail se fonde foncièrement sur une étude de cas réalisée en nous basant sur une approche Quali-Quantitative qui nous a permis d’analyser les usages par les enseignants et les étudiants de la plateforme Moodle mise au service de l’enseignement en ligne à l’Ecole Normale Supérieure de Sétif. A partir du croisement des données recueillies par le biais des analyses des différents contenus recensés, nous avons abouti à des résultats qui soutiennent la nécessité de rénover les pratiques pédagogiques en misant sur les nouvelles technologies de l’information et de la communication. %B Psychological & Educational Studies %V 14 %G eng %U https://www.asjp.cerist.dz/en/downArticle/117/14/2/163256 %N 2 %0 Conference Proceedings %B Colloque international organisé par l’Université Batna %D 2021 %T Différenciation pédagogique : quel rapport avec les A.P.C et quel apport pour celles-ci ? %A ALOUANE, A %B Colloque international organisé par l’Université Batna %G eng %0 Book Section %B LES COMPTES RENDUS %D 2021 %T Éducation critique aux médias et à l’information en contexte numérique %A Arrar, Salah  %A Sophie Jehel %A Alexandra Saemmer %B LES COMPTES RENDUS %I OpenEdition Journals %G eng %0 Conference Proceedings %B Colloque international en ligne : Covid-19 : de la crise vers la créativité dans l’enseignement supérieur, Département de fran\c cais, Université de Constantine 1 le 24 et 25 Mars %D 2021 %T E-learning et enseignement universitaire en contexte pandémique : État des lieux, enjeux et perspectives %A KHADRAOUI, E %A MEESAOUR, R %B Colloque international en ligne : Covid-19 : de la crise vers la créativité dans l’enseignement supérieur, Département de fran\c cais, Université de Constantine 1 le 24 et 25 Mars %C Constantine, Algérie %G eng %0 Journal Article %J Développement des ressources humaines %D 2021 %T Emprunt Neologisant Dans L'arabe Algerien %A Bouzidi, Hidayette %A Khadraoui, Errym %X Le fran\c cais se maintient fort bien. Il est presque (c’est un aveu) omniprésent partout. Il occupe les devants et reste la forme préférée de tout ce qui a trait à" la modernité". Le fran\c cais devient langue véhiculaire d’enseignement et de communication dans un environnement multilingue. L’arabe dialectal algérien (A.D.A.) comprend aujourd’hui une quantité extraordinaire de mots appartenant aux autres, notamment le fran\c cais. C’est une spécificité de l’arabe algérien, il adopte et adapte le mot étranger. Ainsi, le néologisme perd sa xénité et assure sa pérennité gage d’intégration et d’adoption. Le nombre de ces divers emprunts (diversité morphologique), malgré leur opacité, circulent bien et ne rencontrent aucune résistance des locuteurs algériens tous confondus et traduisent un ancrage sûr et une réelle prédisposition non seulement à s’adapter à la grammaire de la langue emprunteuse mais à donner lieu à une dérivation factuelle et à des extensions sémantiques, néosémiques. Mots-clés : emprunt, urgence, naturalisation, dépannage, néologisation.  %B Développement des ressources humaines %V 16 %P 929 -945 %G eng %U https://www.asjp.cerist.dz/en/article/158146 %N 2 %0 Conference Proceedings %B Colloque international en ligne : Enseignement supérieur et pandémie Covid-19. À l’ère du confinement et post-confinement, quelles réflexions, quelles perspectives?, Laboratoire eLiLaf, Département de fran\c cais, Université de Ain-Temouchen %D 2021 %T Enseignement distanciel à l’université algérienne en contexte pandémique : État des lieux, enjeux et perspectives %A KHADRAOUI, E %A MEESAOUR, R %B Colloque international en ligne : Enseignement supérieur et pandémie Covid-19. À l’ère du confinement et post-confinement, quelles réflexions, quelles perspectives?, Laboratoire eLiLaf, Département de fran\c cais, Université de Ain-Temouchen %C Ain-Temouchent, Algérie %G eng %0 Conference Proceedings %B Colloque international organisé à l’université Batna 2 les 02 et 03 Juin %D 2021 %T Enseigner les récits littéraires à l’ère des compétences ; pratiques enseignantes, dispositifs didactiques et objectifs d’apprentissage. L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignante %A ARRAR, S %B Colloque international organisé à l’université Batna 2 les 02 et 03 Juin %C Batna, Algérie %G eng %0 Journal Article %J Revue algérienne des lettres %D 2021 %T ENTRETIEN INÉDIT AVEC VERÒNICA ESTAY STANGE SUR LA POST-MÉMOIRE INTERVIEW WITH VERÒNICA ESTAY STANGE ON POSTMEMORY %A Mouffouk, Samia %X : Dans cet entretien, Dre Verónica ESTAY STANGE répond aux questions relatives à la post-mémoire en tant que phénomène scriptural, de fa\c con générale, puis en l’inscrivant dans le contexte de la littérature maghrébine francophone. Elle commence par justifier la circonscription pluridisciplinaire de la post-mémoire et son impact discursif et esthétique. Puis elle parle des paramètres qui aident à distinguer entre les écrits mémoriaux et post-mémoriaux. Elle a souligné aussi la relation entre l’absence du souvenir du traumatisme et la mémoire qui n’est plus passive. Enfin, elle a parlé de la possibilité de l’existence d’une fonction thérapeutique liée à l’écriture post-mémorielle. %B Revue algérienne des lettres %V 5 %P 591-596 %G eng %U https://www.asjp.cerist.dz/en/downArticle/523/5/2/177285 %N 2 %0 Conference Proceedings %B Communication au colloque international en ligne «L’évaluation en classe de FLE en Algérie : Pratiques et perspectives », Département de français & Laboratoire Selnom, Université Batna 2 (Algérie), 24 février %D 2021 %T Évaluation des compétences langagières dans un contexte de formation des enseignants : timing et procédés. L’orthographe et la grammaire comme exemple %A BELKACEM, M-A %B Communication au colloque international en ligne «L’évaluation en classe de FLE en Algérie : Pratiques et perspectives », Département de français & Laboratoire Selnom, Université Batna 2 (Algérie), 24 février %C Batna, Algérie %G eng %0 Conference Proceedings %B Colloque international en ligne : L’évaluation en classe de FLE en Algérie : Pratiques et perspectives, Université de Batna 2, le 24 Février %D 2021 %T Évaluation des dissertations à l’université́ algérienne : étude des pratiques des enseignants des départements de langues %A HADDAD, M %A LAIDOUDI, A %B Colloque international en ligne : L’évaluation en classe de FLE en Algérie : Pratiques et perspectives, Université de Batna 2, le 24 Février %C Batna, Algérie %G eng %0 Conference Proceedings %B Colloque international en ligne : Enseignement supérieur et pandémie Covid-19. À l’ère du confinement et post-confinement, quelles réflexions, quelles perspectives?, Laboratoire eLiLaf, Département de fran\c cais, Université de Ain-Temouchen %D 2021 %T Face au covid-19 : Défis et solutions à travers la créatologie %A BENCHERIF, S %B Colloque international en ligne : Enseignement supérieur et pandémie Covid-19. À l’ère du confinement et post-confinement, quelles réflexions, quelles perspectives?, Laboratoire eLiLaf, Département de fran\c cais, Université de Ain-Temouchen %C Ain-Temouchent, Algérie %G eng %0 Journal Article %J Revue algérienne des lettres %D 2021 %T Histoire, Identité Et Mémoire Dans Le Roman La Gardienne Des Ombres, Don Quichotte à Alger De Waciny Laredj %A Benziane, Sabrina %X La Gardienne des ombres. Don Quichotte à Alger est une øe}uvre qui se plie à différentes lectures et analyses. Outre l’aspect intertextuel qu’elle met en avant à travers le nom de Don Quichotte qui rappelle indéniablement le personnage légendaire de Miguel de Cervantès, l’aspect interculturel est présent et ce, par la rencontre des deux principaux personnages qui n’hésitent pas à partager leur Histoire, leurs univers, leurs mémoires et leurs angoisses spontanément. Le dialogue se fait pour informer, raconter, découvrir une réalité se rapportant à une période pénible de l’histoire de l’Algérie. Mais c’est surtout la réflexion que l’auteur tente d’établir par la mise en relation des thèmes de mémoire et d’identité pour la réhabilitation d’une Histoire nationale qui primera. Une réflexion où l’aspect symbolique qui enveloppe le texte est perceptible à travers les thèmes évoqués, les images créées, le vocabulaire employé, les mythes remémorés, les discours formulés… Une symbolique qui s’attache à la mémoire et à l’identité de l’Algérie qui semble la perdre et se perdre en délaissant ce qui fonde son Histoire et qui semble revêtir une importance considérable pour Waciny Laredj. Abstract : The Shadowkeeper. Don Quixote in Algiers is a work that adapts to different readings and analyzes. In addition to the intertextual aspect that it puts forward through the name of Don Quixote which undeniably recalls the legendary character of Miguel de Cervantes, the intercultural aspect is present and this, by the meeting of the two main characters who do not hesitate to share their history, their worlds, their memories and their anxieties spontaneously. The dialogue is done to inform, tell, discover a reality relating to a painful period in the history of Algeria. But it is above all the reflection that the author attempts to establish by relating themes of memory and identity for the rehabilitation of a national history that will prevail. A reflection where the symbolic aspect which envelops the text is perceptible through the themes evoked, the images created, the vocabulary used, the myths recalled, the speeches formulated ... A symbolism which is attached to the memory and to the identity of Algeria which seems to lose it and to lose itself by abandoning what founds its history and which seems to be of considerable importance for Waciny Laredj. %B Revue algérienne des lettres %V 5 %P 68-78 %G eng %U https://www.asjp.cerist.dz/en/article/177248 %N 2 %0 Conference Proceedings %B Colloque national. Université de Constantine %D 2021 %T Importance accordée au film cinématographique par les étudiants algériens de langues étrangères pendant le confinement : réalités et effets %A HADDAD, M %A LAIDOUDI, A %B Colloque national. Université de Constantine %C Constantine, Algérie %G eng %0 Conference Proceedings %B Université de Biskra 24/10/2021 %D 2021 %T Innovation pédagogique : Quel rôle pour l’enseignant ? %A SLITANE, S %B Université de Biskra 24/10/2021 %C Biskra, Algerie %G eng %0 Conference Proceedings %B Colloque International en ligne « L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignantes », Département de français & Laboratoire Selnom, Université Batna 2 (Algérie), 2-3 juin %D 2021 %T Intégration de l’APC au Supérieur : les compétences grammaticales comme exemple %A BELKACEM, M-A %A BOUZAHER, H %B Colloque International en ligne « L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignantes », Département de français & Laboratoire Selnom, Université Batna 2 (Algérie), 2-3 juin %C Batna, Algérie %G eng %0 Journal Article %J El oumda %D 2021 %T Kamel Daoud Contre Albert Camus Dans "meursault Contre-enquête", Lectures Venues De L’autres Rives %A Slitane, Kamel %A Hadj-Laroussi, Belkacem %X Dans le présent article, nous évoquons un thème très répandu parmi les critiques littéraires, un thème qui a fait couler beaucoup d’encre depuis l’indépendance de l’Algérie le 05 juillet 1962 jusqu’aujourd’hui. Dans une approche historico-littéraire, nous allons faire une lecture du roman Kamel Daoud "Meursault contre-enquête" et cerner les points qui sont selon les spécialistes en littérature, derrière sa nomination pour le prix Goncourt 2014 et la compagne de presse qu’il a déclenchée dans les deux rives de la Méditerranée. Nous y essayons de chercher dans quelques écrits de fran\c cais notamment dans quelle mesure les occidentaux ont –ils une vision positive envers les écrits décrivant la situation critique, vulnérable, anarchique, voire misérable de la société algérienne… %B El oumda %V 5 %P 533-546 %G eng %U https://www.asjp.cerist.dz/en/article/152648 %N 2 %0 Conference Proceedings %B Colloque international en ligne : L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignantes, Laboratoire SELNoM, Département de français, Université de Batna 2 le 02 et 03 Juin %D 2021 %T La centration sur l’apprenant dans le cadre de l’APC en Classe de FLE en Algérie %A KHADRAOUI, E %A MEESAOUR, R %B Colloque international en ligne : L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignantes, Laboratoire SELNoM, Département de français, Université de Batna 2 le 02 et 03 Juin %C Batna, Algérie %G eng %0 Conference Proceedings %B Université de Batna 2 24/02/2021 %D 2021 %T La centration sur l’apprenant : l’évaluation formatrice %A SLITANE, S %B Université de Batna 2 24/02/2021 %C Batna, Algérie %G eng %0 Conference Proceedings %B 28 Février %D 2021 %T La chanson : une aubaine pour un microprocessus conatif vital à la créativité dans L’apprentissage %A BENCHERIF, S %B 28 Février %C Biskra, Algerie %G eng %0 Journal Article %J Ex Professo %D 2021 %T La Culture En Classe De Langue : De L’utilité D’un Concept Opératoire Pour La Formation Des Enseignants En Contexte Algérien %A Belkacem, Mohammed-Amine %X La présente recherche tente de déterminer le concept le plus opératoire et le plus efficace permettant aux étudiants futurs enseignants de fle d’appréhender la culture et le culturel, afin de pouvoir le prendre en charge à bon escient. La culture des deux langues (d’origine et cible) étant un enjeu d’envergure en classe de langue. Ainsi, pour atteindre notre objectif, les trois concepts retenus (Interculturel ; co-culturel ; transculturel) seront étudiés et analysés selon le modèle de Gerring. %B Ex Professo %V 6 %P 90-99 %G eng %U https://www.asjp.cerist.dz/en/article/168580 %N 2 %0 Conference Proceedings %B COLLOQUE EN LIGNE Université de Msila , Le laboratoire des études Linguistiques Théoriques et Pratiques ; le 22 Mars %D 2021 %T LA DIALECTIQUE DES ENJEUX MÉTHODOLOGIQUES EN RECHERCHES LITTÉRAIRES : DU CORPUS À L’ANALYSE %A MOUFFOK, S %B COLLOQUE EN LIGNE Université de Msila , Le laboratoire des études Linguistiques Théoriques et Pratiques ; le 22 Mars %C M’sila, Algérie %G eng %0 Journal Article %J الممارسات اللّغويّة %D 2021 %T La Géopoétique à Travers L’écriture Géopolitique Dans «le Camp» D'abdelhamid Benzine Et «cette Aveuglante Absence De Lumière» De Tahar Benjelloun %A Mouffouk, Samia %X L’espace a toujours occupé une place primordiale en littérature, puisqu’il demeure la toile de fond contextuel qui l’inscrit dans la diégèse. Les nouvelles recherches dépassent la conception de la géographie fictionnelle, dans l’acte de la créativité scripturale, et son impact sur l’univers politico-fictif pour revoir la dimension géopoétique de l’espace. Cet article tente de comprendre, à partir d’une analyse comparative minutieuse, la relation entre la géopolitique et la géopoétique dans les deux témoignages romancés « Le Camp » d’Abdelhamid Benzine et « Cette aveuglante absence de lumière » de Tahar Benjelloun. Nous allons voir comment la prison (espace commun dans les deux øe}uvres) devient une espace libérateur des auteurs et de leurs personnages tout en déchiffrant les relations dominé/dominant, et en transgressant l’univers romanesque. %B الممارسات اللّغويّة %V 12 %P 444-463 %G eng %U https://www.asjp.cerist.dz/en/article/154291 %N 2 %0 Conference Proceedings %B Colloque International :"Mondialisation de la Langue arabe : enjeux et perspectives« (12 et 13 Décembre) 2021 Dpt. LLE - Faculté FLL- Université IBK %D 2021 %T La mouvance de la présence de la langue arabe dans le roman maghrébin francophone: Entre hybridation interculturelle et intertextualité %A MOUFFOK, S %B Colloque International :"Mondialisation de la Langue arabe : enjeux et perspectives« (12 et 13 Décembre) 2021 Dpt. LLE - Faculté FLL- Université IBK %C Tiaret, Algérie %G eng %0 Conference Proceedings %B National Virtual Symposium: Developing Critical thinking and 21st Century Skills in higher education context on 24 March %D 2021 %T La pédagogie de la classe inversée, la carte mentale et l'enseignement hybride au service de la formation de la pensée critique chez les étudiants de 1ere année LMD %A MOUFFOK, S %B National Virtual Symposium: Developing Critical thinking and 21st Century Skills in higher education context on 24 March %C LAGHOUAT, Algérie %G eng %0 Conference Proceedings %B Colloque National Poésie, Musique et Chanson : Culture de la résistance le 8 et 9 juin 2021 Dpt. LLE - Faculté FLL- Université IBK %D 2021 %T La pensée audible au service de la décolonisation de l’imaginaire collectif algérien dans les chansons de Soolking et de Fianso %A MOUFFOK, S %B Colloque National Poésie, Musique et Chanson : Culture de la résistance le 8 et 9 juin 2021 Dpt. LLE - Faculté FLL- Université IBK %C Tiaret- Algérie %G eng %0 Journal Article %J Synergies Europe %D 2021 %T Le fantasme de l’Europe dans les écrits maghrébins francophones entre Euphorie et dysphorie %A Meziani, Amina %X L’ascension des flux migratoires depuis le début du 21e siècle, est considérée comme un tournant décisif dans l’Histoire de l’Europe. La question de l’immigration est devenue, de facto, un enjeu politique, social et économique prégnant. La littérature francophone maghrébine n’est jamais restée en marge de ces bouleversements générés par ce phénomène. Elle a fait du sujet de l’immigration une thématique ancrée dans le débat identitaire et linguistique. Elle incarne les idées, les craintes, les fantasmes et les aspirations des personnages et des écrivains. Plusieurs écrits décrivent le fantasme des « bruleurs » de frontières et des papiers qui prennent tous les risques pour rejoindre l’Eldorado européen, un fantasme qui prend souvent des allures dramatiques allant à l’encontre de leurs représentations d’une Europe qui peut les libérer de leur malaise. Dans cette contribution, nous présenterons une analyse de deux øe}uvres littéraires, celle de Tahar Benjelloun « Partir » et celle de Salim Bachi « Amour et aventures de Sindbad le Marin » qui décrivent les périples de jeunes maghrébines quittant leurs pays vers l’Europe. Notre intérêt portera sur l’image de l’Europe contemporaine véhiculée dans ces romans et sur le basculement des personnages d’un état euphorique à un état dysphorique. %B Synergies Europe %V 16 %P 93-108 %G eng %U https://gerflint.fr/Base/Europe16/meziani.pdf %0 Journal Article %J Language Practices %D 2021 %T Le français sur Objectif Universitairedans le contexte Algérien: réalité, Enjeux et perspectives %A Belkacem, Mohammed-Amine %X Le présent écrit s’intéresse au problème de la disponibilité de formateurs spécialisés à l’université algérienne. En se référant aux différents profils d’enseignants du fran\c cais de spécialité, nous remarquons l’existence d’un seul profil en l’occurrence un enseignant de FLE assurant un cours de terminologie. Dans le but de satisfaire les nouveaux besoins des étudiants, l’université doit faire appel à d’autres profils à travers une didactisation massive des différentes formations nécessitant un fran\c cais spécifique. L’objectif étant la formation urgente d’enseignants maitrisant l’aspect pratique et véhiculaire du fran\c cais ainsi que la manière de le dispenser (méthodologie) autrement dit, le Fran\c cais sur Objectif Universitaire (FOU). %B Language Practices %V 12 %P 43-51 %G eng %U https://www.asjp.cerist.dz/en/downArticle/352/12/4/183289 %N 4 %0 Journal Article %J Développement des ressources humaines %D 2021 %T Lecture Littéraire Par Dévoilement Progressif : Modalités Et Atouts Didactiques %A Arrar, Salah  %X Dans un contexte marqué par une évolution vertigineuse des canaux de communication, il incombe à l’école de mettre en øe}uvre les conditions favorables à l’apprentissage scolaire, d’une manière générale, et au développement des compétences lectorales des apprenants en particulier. Dans le cadre de cet article, nous nous proposons de soulever la problématique de didactisation de la lecture littéraire en contexte universitaire algérien. A cet effet, nous misons sur la mise en place du dispositif de dévoilement progressif pour permettre au sujet-lecteur d’accéder au sens des textes littéraires. Ainsi, la présente recherche, qui s’inscrit dans une expérimentation menée au sein de l’Ecole Normale Supérieure de Sétif, tend à mettre l’accent sur les modalités et les enjeux inhérents à la pratique de cette technique en vue d’en tirer profit et d’aider les étudiants à s’impliquer effectivement dans les tâches de lecture proposées en classe. %B Développement des ressources humaines %V 16 %G eng %U https://www.asjp.cerist.dz/en/article/158141 %N 2 %0 Conference Proceedings %B Colloque International en ligne « l’évaluation en classe de FLE en Algérie : Pratiques et perspectives », 24 Février 2021, Université Batna 2- Algérie %D 2021 %T Les activités évaluatives dans les manuels scolaires de français, algérien, Tunisien : analyse comparative lexico-sémantique, (Cas de la 3 AP) %A ADOUANE, I %B Colloque International en ligne « l’évaluation en classe de FLE en Algérie : Pratiques et perspectives », 24 Février 2021, Université Batna 2- Algérie %C Batna, Algérie %G eng %0 Conference Proceedings %B Colloque national : les fondements et les méthodes de la recherche scientifique, Université de M’Sila, 13 et 14 Décembre %D 2021 %T Les fondements de la rédaction et la publication d’un article scientifique %A BARA, A %B Colloque national : les fondements et les méthodes de la recherche scientifique, Université de M’Sila, 13 et 14 Décembre %C M’sila, Algérie %G eng %0 Conference Proceedings %B Colloque international en ligne : L’évaluation en classe de FLE en Algérie : Pratiques et perspectives, Laboratoire SELNoM, Département de français, Université de Batna 2 le 24 Février %D 2021 %T Les grilles de correction : outils pour objectiver la subjectivité des enseignants ? %A KHADRAOUI, E %A MEESAOUR, R %B Colloque international en ligne : L’évaluation en classe de FLE en Algérie : Pratiques et perspectives, Laboratoire SELNoM, Département de français, Université de Batna 2 le 24 Février %C Batna, Algérie %G eng %0 Conference Proceedings %B Webinaire international organisé par le département de français et le laboratoire SELNOM « L’évaluation en classe de FLE en Algérie : Pratiques et perspectives » Le 24/02/2021 Université Batna 2 %D 2021 %T Les modalités d’évaluation de la compétence interculturelle dans les corpus de recherches en sciences du langage et en didactique %A MEZIANI, A %B Webinaire international organisé par le département de français et le laboratoire SELNOM « L’évaluation en classe de FLE en Algérie : Pratiques et perspectives » Le 24/02/2021 Université Batna 2 %C Batna, Algérie %G eng %0 Journal Article %J Revue Ichkalat %D 2021 %T Littérature – Culture De La Compréhension De Soi Et De L’autre %A Slitane, Kamel %A Khadraoui, Fatima-Zohra %X  Partant du principe que la langue est le véhicule de la culture, que la conscience est essentiellement un produit socio-culturel, de la primauté de l’intellectuel comme force renouvelable et éternellement dynamique, il en ressort que les mots, notamment en littérature, ne tiennent pas sens d’une puissance indépendante mais d’un univers socio-culturel. D’où cette réflexion reposant sur le principe d’une lecture culturaliste de la littérature comme pratique culturelle échafaudée sur les concepts d’anthropologie, de sociologie, d’ethnologie culturelle et d’écart culturel. %B Revue Ichkalat %V 10 %P 580-593 %G eng %U https://www.asjp.cerist.dz/en/article/152849 %N 2 %0 Conference Proceedings %B Colloque International en ligne sous le thème de : « L’ECRITURE DE SOI DANS L'OEUVRE D’ASSIA DJEBAR : LIBERATION OU ENGAGEMENT ? » organisé par le Laboratoire de Recherche Société, Langage, Art et Médias (LaRSLAM) de la Faculté des Lettres %D 2021 %T L’Altérité entre écriture féministe et écriture féminine dans Vaste est la prison d’Assia Djebar %A MOUFFOK, S %B Colloque International en ligne sous le thème de : « L’ECRITURE DE SOI DANS L'OEUVRE D’ASSIA DJEBAR : LIBERATION OU ENGAGEMENT ? » organisé par le Laboratoire de Recherche Société, Langage, Art et Médias (LaRSLAM) de la Faculté des Lettres %G eng %0 Conference Proceedings %B Journée d’étude en ligne : les principes de l’approche neurolinguistique dans l’apprentissage du FLE, Université de M’sila, le 06 janvier %D 2021 %T L’ANL : Pour quels besoins de classe ? %A KHADRAOUI, S %A KHADRAOUI, F-Z %B Journée d’étude en ligne : les principes de l’approche neurolinguistique dans l’apprentissage du FLE, Université de M’sila, le 06 janvier %C M’sila, Algérie %G eng %0 Conference Proceedings %B Communication dans colloqué international en ligné, Université Batna 2 %D 2021 %T l’APC dans l’enseignement dans langues étrangères en Algérie : discours modélisateur et interrogations (cas du curriculum d FLE de la 5e AP %A HAMAIZI, B %B Communication dans colloqué international en ligné, Université Batna 2 %C Batna, Algérie %G eng %0 Journal Article %J Revue algérienne des lettres %D 2021 %T L’ecole A L’ere Du Numerique Entre Ethique Et Enjeux %A Tarek Benzeroual %X Le présent article porte sur la dimension éthique au niveau des TIC dans l’éducation, afin de mieux saisir les nouveaux paradigmes éducatifs qui découlent du recours massif aux TIC qui a changé la donne et où l’enseignant se retrouve face à de nouveaux rôles. Nous avons porté une réflexion sur la place de l’éthique dans cette nouvelle ère numérique, puis nous avons analysé des sites qui proposent des modèles éthiques et enfin, nous avons traité des résultats d’une enquête visant à dégager les opinions des enseignants et apprenants algériens sur l’école algérienne et le recours aux TIC %B Revue algérienne des lettres %V 5 %P 97-108 %G eng %U https://www.asjp.cerist.dz/en/article/160634 %N 18 %0 Conference Proceedings %B 1ère  Journée d’Etude Virtuelle Sur : « L’Economie Circulaire et sa Contribution à l’Entreprenariat Vert pour Atteindre d’ ici 2030 les Objectifs de Développement Durable », organiséele 21 Novembre 2021, par La Chaire ALECSO / Université %D 2021 %T L’éducation à l’économie verte et circulaire au service des objectifs de développement durables à l’école algérienne %A MOUFFOK, S %B 1ère  Journée d’Etude Virtuelle Sur : « L’Economie Circulaire et sa Contribution à l’Entreprenariat Vert pour Atteindre d’ ici 2030 les Objectifs de Développement Durable », organiséele 21 Novembre 2021, par La Chaire ALECSO / Université %G eng %0 Conference Proceedings %B Colloque international en ligne « L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignantes » les 02/03 JUIN 2021, Université Batna 2 %D 2021 %T L’efficacité de l’approche par compétences dans l’enseignement de la méthodologie de la recherche universitaire : Bilan et attitudes %A MEZIANI, A %B Colloque international en ligne « L’approche par les compétences au Supérieur : réalités éducatives et pratiques enseignantes » les 02/03 JUIN 2021, Université Batna 2 %C Batna, Algérie %G eng %0 Journal Article %J Revue Académique des études sociales et humaines %D 2021 %T L’enseignement du texte littéraire en classe de FLE à travers l’approche interculturelle %A Torchi, Feyrouz %A Meziani, Amina %X Ce travail de recherche a pour but de mettre l’accent sur quelques moyens possibles pour d’une part, mieux intégrer les textes littéraires en classe de FLE et d’autre part, installer et développer la compétence (inter)culturelle chez les apprenants de FLE. La réalité de la classe d’aujourd’hui est toute autre, du fait que l’interculturel demeure très marginalisé, et le texte littéraire comme support pédagogique adéquat est devenu moins sollicité dans l’enseignement / apprentissage de la langue fran\c caise. Notre observation sur le terrain, les entretiens portant sur le sujet, ainsi qu’un survol que nous avons effectué de la documentation pédagogique, et de l’ensemble de textes littéraires dans les manuels scolaires, nous permettent d’affirmer réellement que le problème réside dans l’application d’une refonte pédagogique et non pas dans son élaboration. Moderniser et améliorer qualitativement l’enseignement du FLE en se centrant sur les nouveaux modes d’organisation de son enseignement et la mise en øe}uvre d’un plan de rénovation deviennent de plus en plus un besoin. %B Revue Académique des études sociales et humaines %V 13 %P 62-69 %G eng %U https://www.asjp.cerist.dz/en/article/141110 %N 1 %0 Conference Proceedings %B Colloque national « Le texte littéraire, quelles pratiques à l’université algérienne ? ». Organisé le 01 Décembre 2021 au département de fran\c cais. Centre universitaire Si-El Haouès –Barika %D 2021 %T L’enseignement hybride au service de l'enseignement de la littérature à l’Université algérienne %A MOUFFOK, S %B Colloque national « Le texte littéraire, quelles pratiques à l’université algérienne ? ». Organisé le 01 Décembre 2021 au département de fran\c cais. Centre universitaire Si-El Haouès –Barika %C Batna, Algérie %G eng %0 Journal Article %J Revue Afak sciences %D 2021 %T L’enseignement Hybride Et L’intégration Des Nouvelles Pédagogies Au Service De La Formation De La Pensée Critique à L’université Algérienne %A Mouffouk, Samia %X Cet article tente de comprendre l’impact de l’enseignement hybride sur la formation de la pensée critique chez les étudiants de première année LMD lors de formation du module "Culture et civilisation de la langue". Nous avons mené une expérimentation dans cette classe pour pouvoir mesurer l’écart entre les acquis d’un cours ordinaire et ceux d’un autre hybride .L’analyse et la discussion des résultats obtenus nous ont permis de vérifier notre hypothèse de départ et de dire que l’introduction de la carte mentale pour évaluer les acquis tout en utilisant la pédagogie la classe inversée via Google Meet et Classroom ont rendu leurs cartes mentales plus riches tout en se référant à des informations pertinentes. %B Revue Afak sciences %V 6 %P 433-445 %G eng %U https://www.asjp.cerist.dz/en/article/152557 %N 3 %0 Journal Article %J El-ihyaa journal %D 2021 %T Ludification des apprentissages : des pratiques de classe à l’intégration dans la formation des enseignants %A Khadraoui, Errime %A Messaour, Riad %X La présente contribution, qui se veut purement théorique, vise à mettre en exergue ce que peut apporter la ludification, en tant que fondement dans la conception des programmes, au processus d’apprentissage sur le plan cognitif, psychologique, et social. Pour cela, nous nous basons sur l’apport théorique des neurosciences dans le domaine de l’éducation. La principale nouveauté apportée par cette science est le dépassement de la dichotomie existante jusque-là entre le jeu d’un côté et l’apprentissage de l’autre. Dans cette perspective, l’école ne sera plus un lieu de « travail » dans son sens étymologique renvoyant à la souffrance. Désormais, l’école peut être considérée comme un lieu pouvant procurer du plaisir à apprendre moyennant le jeu. Il ressort de cette étude qu’en effet le jeu permet à l’apprenant de dédramatiser le processus d’apprentissage en endiguant la peur de commettre des « fautes ». En effet, il peut s’engager plus facilement et participe activement dans son apprentissage sans que le spectre de l’échec ne le menace à chaque fois qu’il entreprend une tâche. Ainsi, la ludification des apprentissages rend le processus d’enseignement/apprentissage plus ergonomique pour le cerveau de l’apprenant. L’apport que constitue cette nouvelle forme d’enseignement/apprentissage plaide en faveur de son intégration dans les offres de formation des enseignants. %B El-ihyaa journal %V 21 %P 1145 – 1158 %G eng %U https://www.asjp.cerist.dz/en/downArticle/92/21/2/166583 %N 29 %0 Journal Article %J Développement des ressources humaines %D 2021 %T Médiation Culturelle Et Interculturelle Dans Les Manuels De Fle De L’enseignement Moyen En Algérie : Le Manuel De La 4e Année Pour Exemple %A Hamaizi, Belkacem %A Khadraoui, Errime %X Le manuel scolaire de fran\c cais langue étrangère est un espace de rencontre de la culture cible et de la propre culture des apprenants. C’est en ce sens qu’il constitue une médiation (inter)culturelle essentielle en didactique des langues-cultures. La médiation dont il est question est surtout linguistique et (inter)culturelle. En tant qu’objet d’enseignement-apprentissage, celle-ci fait partie du socle de compétences (à côté des quatre compétences traditionnelles : compréhension/expression écrites et orales) à développer et à évaluer chez les apprenants de FLE. C’est dans cette perspective que le présent article se propose d’interroger les tâches de médiation linguistique et (inter)culturelle éventuellement présentes dans le manuel de 4e année moyenne. Pour ce faire, nous avons procédé à une analyse descriptive et analytique dudit manuel afin de nous attarder sur la nature des tâches de médiation proposées, leur évolution tout au long du manuel, mais surtout la manière dont la compétence de médiation a été didactisée. L’analyse a révélé que le nombre de tâches de médiation à l’écrit est très limité, et qu’à l’oral, elles sont inexistantes et qu’elles demeurent, de ce fait, loin de favoriser le développement de cette composante essentielle de la compétence (inter)culturelle. %B Développement des ressources humaines %V 16 %P 835-850 %G eng %U https://www.asjp.cerist.dz/en/article/172625 %N 2 %0 Journal Article %J Développement des ressources humaines %D 2021 %T Médiation Culturelle Et Interculturelle Dans Les Manuels De Fle De L’enseignement Moyen En Algérie : Le Manuel De La 4e Année Pour Exemple %A Hamaizi, Belkacem %X Le manuel scolaire de fran\c cais langue étrangère est un espace de rencontre de la culture cible et de la propre culture des apprenants. C’est en ce sens qu’il constitue une médiation (inter)culturelle essentielle en didactique des langues-cultures. La médiation dont il est question est surtout linguistique et (inter)culturelle. En tant qu’objet d’enseignement-apprentissage, celle-ci fait partie du socle de compétences (à côté des quatre compétences traditionnelles : compréhension/expression écrites et orales) à développer et à évaluer chez les apprenants de FLE. C’est dans cette perspective que le présent article se propose d’interroger les tâches de médiation linguistique et (inter)culturelle éventuellement présentes dans le manuel de 4e année moyenne. Pour ce faire, nous avons procédé à une analyse descriptive et analytique dudit manuel afin de nous attarder sur la nature des tâches de médiation proposées, leur évolution tout au long du manuel, mais surtout la manière dont la compétence de médiation a été didactisée. L’analyse a révélé que le nombre de tâches de médiation à l’écrit est très limité, et qu’à l’oral, elles sont inexistantes et qu’elles demeurent, de ce fait, loin de favoriser le développement de cette composante essentielle de la compétence (inter)culturelle. %B Développement des ressources humaines %V 16 %P 835-850 %G eng %U https://www.asjp.cerist.dz/en/article/172625 %N 2 %0 Conference Proceedings %B Colloque international organisé à l’université Tiaret les 02 et 03 Juin %D 2021 %T Modes de lecture littéraire et d’évaluation en milieu universitaire algérien ; quelle(s) articulation(s) possible(s) ? Enseigner et évaluer dans le cadre du projet d’établissement, repenser les méthodes et privilégier une approche curri %A ARRAR, S %B Colloque international organisé à l’université Tiaret les 02 et 03 Juin %C Tiaret, Algérie %G eng %0 Journal Article %J Revue algérienne des lettres %D 2021 %T Paradigmes évaluatifs de la compétence interculturelle dans la recherche : Enjeux conceptuels et méthodologiques %A Meziani, Amina %X Dans cet article, l’objectif est de fournir aux chercheurs intéressés par la compétence interculturelle des pistes de réflexion sur son évaluation. Il s’agit de porter un regard analytique sur ce construit multidimensionnel tel qu’il est approché dans les différentes recherches. La clarification du concept nous permettra de dresser les modalités de son évaluation, leurs avantages ainsi que leurs limites tout en tenant compte des considérations méthodologiques garantissant leur validité et fiabilité selon le contexte de la recherche. Notre but est de dépasser une vision réductrice du concept altérant son opérationnalisation et de proposer des alternatives que le chercheur pourrait adopter. %B Revue algérienne des lettres %V 5 %P 471-484 %G eng %U https://www.asjp.cerist.dz/en/article/177277 %N 2 %0 Journal Article %J social and human sciences review %D 2021 %T Pédagogie Du Projet Appliquée à L’enseignement Du Fle : Pour Le Développement D’une Compétence De Compréhension Et De Production De L’écrit %A Khadraoui, Errime %A Khadraoui, Fatima-Zohra %X La présente contribution a pour objectif de déterminer la place de l’écrit par rapport à l’oral dans le système éducatif algérien ainsi que de rendre compte de la manière dont la pédagogie du projet permet le développement des compétences de compréhension et de production de l’écrit. Pour ce faire, nous avons pris les programmes du cycle moyen du système éducatif algérien comme objet d’étude. Dans un premier temps, nous avons analysé les programmes, manuels scolaires, et guides des professeurs, dans le but de déterminer l’importance accordée par les instances éducatives aux deux compétences (écrit, oral). Nous avons expliqué, dans un second temps, à travers la présentation d’un exemple de projet comment la pédagogie du projet permet-elle un meilleur développement de la compétence de l’écrit. %B social and human sciences review %V 22 %P 623-636 %G eng %U https://www.asjp.cerist.dz/en/article/161725 %N 1 %0 Conference Proceedings %B journée d’étude virtuelle ayant pour thème : « Intégration des Objectifs de Développement Durable «ODD» en milieu scolaire » organisée le 14 juillet 2021, par la chaire ALECSO en partenariat avec le Laboratoire de Recherche en Technologie Alim %D 2021 %T Place de l'éducation au développement durable dans les programmes des langues au cycle primaire %A MOUFFOK, S %B journée d’étude virtuelle ayant pour thème : « Intégration des Objectifs de Développement Durable «ODD» en milieu scolaire » organisée le 14 juillet 2021, par la chaire ALECSO en partenariat avec le Laboratoire de Recherche en Technologie Alim %G eng %0 Conference Proceedings %B CU Barika 10/11/2021 %D 2021 %T Pour une nouvelle conception de l’évaluation en classe %A SLITANE, S %B CU Barika 10/11/2021 %C Batna, Algérie %G eng %0 Journal Article %J Revue In Translation %D 2021 %T Regard Kaléidoscopique Sur La Traduction Des Instances Narratives %A Lebbal, Sara %X Le présent article tend à spéculer sur l’importance des instances narratives scellant le discours littéraire dans l’entreprise traductionnelle. Sa nécessité tient dans la considération que les traducteurs sont invités à cerner l’exhaustivité et la profondeur du travail littéraire pour une appréhension optimale de leur exercice. Pour ce faire, nous proposons de mettre en exergue la triade narratologique faisant office de soubassement théorique (modes/perspectives/niveaux) en la mettant en corrélation avec l’øe}uvre qui nous servira de corpus à savoir « les ailes brisées » de Gibran Khalil Gibran traduite de l’arabe par Thierry Gillyboeuf afin de rendre compte de la matérialisation et la conformité de ces mêmes instances dans le texte cible. %B Revue In Translation %V 8 %P 500-508 %G eng %U https://www.asjp.cerist.dz/en/article/173485 %N 1 %0 Conference Proceedings %B Webinaire organisé à l’occasion de la journée internationale de l’éducation « relancer et redynamiser l’éducation pour la génération Covid19 » organisé par l’association nationale des enseignants chercheurs en langues étrangères en Alg %D 2021 %T Représentations des étudiants algériens de la formation à distance : Une approche éducative innovée à l’ère de la covid 19 %A MEZIANI, A %B Webinaire organisé à l’occasion de la journée internationale de l’éducation « relancer et redynamiser l’éducation pour la génération Covid19 » organisé par l’association nationale des enseignants chercheurs en langues étrangères en Alg %G eng %0 Conference Proceedings %B Colloque international organisé à l’université Alger II le 27 Mai %D 2021 %T Trouble du stress post-traumatique chez les patients du Coronavirus (Covid-19). Désastres naturels et traumatismes psychologiques %A ARRAR, S %B Colloque international organisé à l’université Alger II le 27 Mai %C Alger, Algérie %G eng %0 Conference Proceedings %B Communication dans colloqué national en ligne, Centre universitaire Barika %D 2021 %T Un outil pour devenir : le portfolio de compétences dans la formation des enseignants de FLE en Algérie %A HAMAIZI, B %B Communication dans colloqué national en ligne, Centre universitaire Barika %C Batna, Algérie %G eng %0 Journal Article %J JOURNAL OF PHILOLOGY AND INTERCULTURAL COMMUNICATION REVUE DE PHILOLOGIE ET DE COMMUNICATION INTERCULTURELLE %D 2021 %T Une autre manière de conscientiser à l’interculturel dans l’apprentissage du français en Algérie %A Meziani, Amina %X This article is a reflection on the interculturality/contextualization duo in the relationship between the Algerian education system with the French language. The first step is to study the degree of conformity between the intercultural/contextual aims presented in official discourses and texts, and their transposition into French textbooks. Secondly, we will identify suggestions likely to enhance contextualization and interculturality through the texts and comprehension activities presented in the textbooks. Our aim is to provide the teachers with suggestions/tools to raise their learners’ intercultural awareness and enable them to be intercultural mediators. %B JOURNAL OF PHILOLOGY AND INTERCULTURAL COMMUNICATION REVUE DE PHILOLOGIE ET DE COMMUNICATION INTERCULTURELLE %V V %G eng %U https://jpic.mta.ro/assets/JPIC_Vol.V_No.1_2021.pdf %N 1 %0 Conference Proceedings %B Colloque international organisé à l’université Batna 2 le 24 Février %D 2021 %T Voies didactiques pour évaluer autrement l’activité compréhensive et interprétative des récits littéraires. L’évaluation en classe de FLE en Algérie : Pratiques et perspectives %A ARRAR, S %B Colloque international organisé à l’université Batna 2 le 24 Février %C Batna, Algérie %G eng %0 Thesis %B Génie industriel %D 2021 %T Amélioration du processus de capitalisation et de partage des connaissances pour la maximisation de la valeur d'un système de production %A Titah, Mawloud %X Dans cette thèse, nous nous sommes intéressés à un modèle de gestion des connaissances des entreprises industrielles. Certaines tâches manufacturières impliquent un niveau élevé de connaissance tacite des opérateurs qualifiés. L’industrie a besoin des méthodes fiables pour la capture et l’analyse de ces connaissances tacites afin qu’elles puissent être partagées et sans aucune perte. Nous proposons, un modèle de gestion contenant deux processus de gestion, le premier processus est la capitalisation des connaissances basée sur une tâche industrielle. Nous avons utilisé une combinaison de deux méthodologies : une méthodologie d’ingénierie de connaissances CommonKADS et une méthodologie d’élicitation des connaissances MACTAK. Dans la phase de modélisation, nous avons utilisé deux différentes techniques de modélisation, une modélisation basée sur les connaissances d’expert et la deuxième une représentation ontologique. Ce modèle facilite la capture des connaissances d’experts et transforme les connaissances tacites en explicites avec une maximisation des règles de production. Le deuxième processus concerne le partage des connaissances à base d’une ontologie des Tâches Manufacturières MATO en identifiant un ensemble des concepts de fabrication et leurs relations, cette ontologie proposée facilite le partage des connaissances entre les tâches de fabrication et aide à partager et à réutiliser les connaissances durant l’exécution des tâches. Ensuite, une application proposée pour le diagnostic de système d’alarme dans une centrale thermique a été présentée pour démontrer l’importance et l’apport de l’ontologie. %B Génie industriel %G eng %U http://eprints.univ-batna2.dz/1944/ %9 Doctorat en sciences %0 Conference Proceedings %B International Conference on Artificial Intelligence in Renewable Energetic Systems (IC-AIRES’21) %D 2021 %T Analysis and Design of Modified Incremental Conductance-Based MPPT Algorithm for Photovoltaic System %A Hadjidj, Nadjiha  %A Benbrahim, Meriem %A Ounnas, Djamel %A Mouss, Leila-Hayet %X

This study discusses the design of the Maximum Power Point Tracking (MPPT) technique for photovoltaic (PV) systems employing a modified incremental conductance (IncCond) algorithm to extract maximum power from a PV module. A PV module, a DC-DC converter, and a resistive load constitute the PV system. In the scientific literature, it is well-documented that typical MPPT algorithms have significant drawbacks, such as fluctuations around the MPP and poor tracking during a sudden change in atmospheric conditions. To solve the deficiencies of conventional methodology, a novel modified IncCond method is proposed in this study. The simulation results demonstrate that the updated IncCond algorithm presented allows for less oscillation around the maximum power point (MPP), a rapid dynamic response, and superior performance.

%B International Conference on Artificial Intelligence in Renewable Energetic Systems (IC-AIRES’21) %C Adrar, Algeria %G eng %U https://revue.cder.dz/index.php/rer/article/view/1081 %0 Conference Proceedings %B The First International Conference on Renewable Energy Advanced Technologies and Applications (ICREATA’21 ), October 25-27 %D 2021 %T Analysis and Design of Modified IncrementalConductance-BasedMPPT Algorithm for Photovoltaic System %A HADJIDJ, Nadjiha %A Benbrahim, Meriem %A Ounnes, D %A Mouss, Leila-Hayet %X Nowadays, solar energy, which is the direct conversion of light into electricity, occupies a very important place among renewable energy resources due to its daily availability in most regions of the globe. Therefore, the wise exploitation of this clean energy will ultimately drive to cover all needed demands [1, 2]. This paper deals with the design of Maximum Power Point Tracking (MPPT) technique for photovoltaic (PV) system using a modified incremental conductance (IncCond) algorithm to extract maximum power from PV module. The considered PV system consists of a PV module, a DC-DC converter and a resistive load. In the literature, it is known that the conventional MPPT algorithms suffer from serious disadvantages such as fluctuations around the MPP and slow tracking during a rapid change in atmospheric conditions. Therefore, in this paper, and attempting to overcome the shortcomings of conventional approach. In this work, a new modified incremental conductance algorithm is proposed to find the Maximum Power Point Tracking (MPPT) of the Photovoltaic System. Simulation tests with different atmospheric conditions are provided to demonstrate the validity and the effectiveness of the proposed algorithm. %B The First International Conference on Renewable Energy Advanced Technologies and Applications (ICREATA’21 ), October 25-27 %C October 25-27 %G eng %U https://www.researchgate.net/profile/Abderrezzaq-Ziane/publication/357687664_ICREATA’21_Proceedings/links/61daf088b8305f7c4b3195cf/ICREATA21-Proceedings.pdf %0 Conference Proceedings %B INTERNATIONAL JOURNAL OF FUZZY SYSTEMS and ADVANCED APPLICATIONS %D 2021 %T Automation and fuzzy control of a manufacturing system %A Hanane Zermane %A Mouss, Leila-Hayet %A Sonia Benaicha %X The automation of manufacturing systems is a major obligation to the developments because of exponential industrial equipment, and programming tools, so that growth needs and customer requirements. This automation is achieved in our work through the application programming tools from Siemens, which are PCS 7 (Process Control System) for industrial process control and FuzzyControl++ for fuzzy control. An industrial application is designed, developed and implemented in the cement factory in Ain-Touta (S.CIM.AT) located in the province of Batna, East of Algeria. Especially in the cement mill which gives the final product that is the cement. %B INTERNATIONAL JOURNAL OF FUZZY SYSTEMS and ADVANCED APPLICATIONS %G eng %U https://www.naun.org/main/NAUN/fuzzy/2021/a082017-004(2021).pdf %0 Journal Article %J IEEE Access %D 2021 %T Auto-NAHL: A Neural Network Approach for Condition-Based Maintenance of Complex Industrial Systems %A Berghout, Tarek %A Benbouzid, Mohamed %A Muyeen, S-M %A Bentrcia, Toufik %A Mouss, Leïla-Hayet %X Nowadays, machine learning has emerged as a promising alternative for condition monitoring of industrial processes, making it indispensable for maintenance planning. Such a learning model is able to assess health states in real time provided that both training and testing samples are complete and have the same probability distribution. However, it is rare and difficult in practical applications to meet these requirements due to the continuous change in working conditions. Besides, conventional hyperparameters tuning via grid search or manual tuning requires a lot of human intervention and becomes inflexible for users. Two objectives are targeted in this work. In an attempt to remedy the data distribution mismatch issue, we firstly introduce a feature extraction and selection approach built upon correlation analysis and dimensionality reduction. Secondly, to diminish human intervention burdens, we propose an Automatic artificial Neural network with an Augmented Hidden Layer (Auto-NAHL) for the classification of health states. Within the designed network, it is worthy to mention that the novelty of the implemented neural architecture is attributed to the new multiple feature mappings of the inputs, where such configuration allows the hidden layer to learn multiple representations from several random linear mappings and produce a single final efficient representation. Hyperparameters tuning including the network architecture, is fully automated by incorporating Particle Swarm Optimization (PSO) technique. The designed learning process is evaluated on a complex industrial plant as well as various classification problems. Based on the obtained results, it can be claimed that our proposal yields better response to new hidden representations by obtaining a higher approximation compared to some previous works. %B IEEE Access %V 9 %G eng %U https://ieeexplore.ieee.org/document/9610082 %0 Journal Article %J International Journal of Industrial and Systems Engineering %D 2021 %T Capacity Planning With Outsourcing Opportunities Under Reliability And Maintenance Constraints. Status %A Haoues, Mohamed %A Dahane, Mohammed %A Mouss, Nadia-Kenza %X This paper investigates capacity planning with outsourcing under reliability-maintenance constraints. The considered supply-chain consists of a single-manufacturer and multiple-subcontractors. The manufacturer’s company is composed of a single unit subject to random failures. Corrective maintenance is endorsed when failures occur, and preventive maintenance can be carried out to reduce the degradation. The high in-house costs and the incapacity motivate the manufacturer outsourcing to independent subcontractors. In addition, based on the principle of comparative advantage, the manufacturer balances between in-house capacities and outsourcing services, which minimises the total cost. The aim is to propose a new policy based on the combination between integrated-maintenance and outsourcing policies. A mathematical model and an optimisation procedure have been developed in order to determine the best in-house production-maintenance and outsourcing plans for the manufacturer while minimising the total cost. In order to show the applicability of our approach, we conduct experimentations to study the management insights. %B International Journal of Industrial and Systems Engineering %V 37 %P 382-409 %G eng %U https://ideas.repec.org/a/ids/ijisen/v37y2021i3p382-409.html %N 3 %0 Book %D 2021 %T CAPTEURS INTELLIGENTS %A AKSA, Karima %X L’évolution récente des moyens de la communication sans fil a permet la manipulation de l’information à travers des unités de calculs portables, appelés capteurs. Ces derniers, qui ont des caractéristiques particulières, sont capables de récolter, de traiter et de transmettre des données environnementales d’une manière autonome.Dans ce livre sont introduites les connaissances de base nécessaires à la bonne compréhension des capteurs intelligents, des réseaux de capteurs et les différents types protocoles de routage spécifiques aux réseaux de capteurs. Nous fournirons ainsi les définitions généralement acceptées par ce type de réseau. Nous aborderons également par une description succincte les principales caractéristiques, contraintes et facteurs conceptuels qui surviennent dans ces réseaux. Nous présenterons ensuite les différentes orientations prises aux applications des réseaux de capteurs. %7 Bookelis %G eng %0 Journal Article %J Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization %D 2021 %T A CNN-based methodology for breast cancer diagnosis using thermal images %A Zuluaga-Gomez, J %A Al Masry, Z %A Benaggoune, Khaled %A Meraghni, Safa %A Zerhouni, Noureddine %X A recent study from GLOBOCAN disclosed that during 2018 two million women worldwide had been diagnosed with breast cancer. Currently, mammography, magnetic resonance imaging, ultrasound, and biopsies are the main screening techniques, which require either, expensive devices or personal qualified; but some countries still lack access due to economic, social, or cultural issues. As an alternative diagnosis methodology for breast cancer, this study presents a computer-aided diagnosis system based on convolutional neural networks (CNN) using thermal images. We demonstrate that CNNs are faster, reliable and robust when compared with different techniques. We study the influence of data pre-processing, data augmentation and database size on several CAD models. Among the 57 patients database, our CNN models obtained a higher accuracy (92%) and F1-score (92%) that outperforms several state-of-the-art architectures such as ResNet50, SeResNet50, and Inception. This study exhibits that a CAD system that implements data-augmentation techniques reach identical performance metrics in comparison with a system that uses a bigger database (up to 33%) but without data-augmentation. Finally, this study proposes a computer-aided system for breast cancer diagnosis but also, it stands as baseline research on the influence of data-augmentation and database size for breast cancer diagnosis from thermal images with CNNs %B Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization %V 9 %P 131-145 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/21681163.2020.1824685 %N 2 %0 Conference Paper %B ICCIS2020 %D 2021 %T A Comparative Study Between Data-Based Approaches Under Earlier Failure Detection %A HADJIDJ, Nadjiha %A Benbrahim, Meriem %A Berghout, Tarek %A Mouss, Leila-Hayet %X A comparative study between a set of chosen machine learning tools for direct remaining useful life prediction is presented in this work. The main objective of this study is to select the appropriate prediction tool for health estimation of aircraft engines for future uses. The training algorithms are evaluated using “time-varying” data retrieved from Commercial Modular Aero-Propulsion System Simulation (C-MAPSS) developed by NASA. The training and testing processes of each algorithm are carried out under the same circumstances using the similar initial condition and evaluation sets. The results prove that among the studied training tools, Support vector machine (SVM) achieved the best results. %B ICCIS2020 %I Lecture Notes in Networks and Systems %C India %V 204 %P 235–239 %G eng %U https://link.springer.com/chapter/10.1007/978-981-16-1089-9_20 %0 Conference Proceedings %B 1st International Conference On Cyber Management And Engineering (CyMaEn), 26-28 May %D 2021 %T Cost Optimisation for Wheelchair Redesign %A Bellal, Salah-Eddine %A Mouss, Leila-Hayet %A Sahnoun, M’hammed %A Messaadia, Mourad %X Requirements of users in developing countries differ from those of developed countries. This difference can be seen through wheelchair displacement in infrastructures that don’t meet international standards. However, developing countries are obliged to purchase products from developed countries that don’t necessarily meet all user’s requirements. The modification of these requirements will generate disruption on all the supply chain. This paper proposes a model for optimising the cost of requirement modification on the supply chain and seeks to evaluate the introduction of a new requirement on an existing product/process. This model is adapted to the redesign and development of products, such as wheelchairs, satisfying specific Algerian end-user requirements. %B 1st International Conference On Cyber Management And Engineering (CyMaEn), 26-28 May %C Hammamet, Tunisia %G eng %U https://ieeexplore.ieee.org/document/9497281 %0 Conference Proceedings %B The First International Conference on Renewable Energy Advanced Technologies and Applications %D 2021 %T Deep Long Short-Term Memory with Separation Models for Direct Normal Irradiance Forecasting: Application to Tamanrasset, Algeria %A Hanane Atmani %A Hassen Bouzgou %A Christian A Gueymard %X Solar energy is a vast and clean resource that can be harnessed with great benefit for humankind. It is still currently difficult, however, to convert it into electricity in an efficient and cost-effective way. One of the ways to produce energy is the use of various focusing technologies that concentrate the direct normal irradiance (DNI) to produce power through highly-efficient modules or conventional turbines. Concentrating technologies have great potential over arid areas, such as Northern Africa. A serious issue is that DNI can vary rapidly under broken-cloud conditions, which complicate its forecasts [1]. In comparison, the global horizontal irradiance (GHI) is much less sensitive to cloudiness. As an alternative to the direct DNI forecasting avenue, a possibility exists to derive the future DNI indirectly by forecasting GHI first, and then use a conventional separation model to derive DNI. In this context, the present study compares four of the most well-known separation models of the literature and evaluates their performance at Tamanrasset, Algeria, when used in combination with a new deep learning machine methodology introduced here to forecast GHI time series for short-term horizons (15-min). The proposed forecast system is composed of two separate blocs. The first bloc seeks to forecast the future value of GHI based on historical time series using the Long Short-Term Memory (LSTM) technique with two different search algorithms. In the second bloc, an appropriate separation (also referred to as “diffuse fraction” or “splitting”) model is implemented to extract the direct component of GHI. LSTMs constitute a category of recurrent neural network (RNN) structure that exhibits an excellent learning and predicting ability for data with time-series sequences [2]. The present study uses and evaluates the performance of two novel and competitive strategies, which both aim at providing accurate short-term GHI forecasts: Unidirectional LSTM (UniLSTM) and Bidirectional LSTM (BiLSTM). In the former case, the signal propagates backward or forward in time, whereas in the latter case the learning algorithm is fed with the GHI data once from beginning to the end and once from end to beginning. One goal of this study is to evaluate the overall advantages and performance of each strategy. Hence, this study aims to validate this new approach of obtaining 15- min DNI forecasts indirectly, using the most appropriate separation model. An important step here is to determine which model is suitable for the arid climate of Tamanrasset, a high-elevation site in southern Algeria where dust storms are frequent. Accordingly, four representative models have been selected here, based on their validation results [3] and popularity: 1) Erbs model [4]; 2) Maxwell’s DISC model [5]; 3) Perez’s DIRINT model [6]; and 4) Engerer2 model [7]. In this contribution, 1-min direct, diffuse and global solar irradiance measurements from the BSRN station of Tamanrasset are first quality-controlled with usual procedures [3, 8] and combined into 15-min sequences over the period 2013–2017. The four separation models are operated with the 15-min GHI forecasts obtained with each LSTM model, then compared to the 15-min measured DNI sequences. Table 1 shows the results obtained by the two forecasting strategies, for the experimental dataset. %B The First International Conference on Renewable Energy Advanced Technologies and Applications %C Adrar, Algeria %G eng %U https://www.researchgate.net/profile/Abderrezzaq-Ziane/publication/357687664_ICREATA’21_Proceedings/links/61daf088b8305f7c4b3195cf/ICREATA21-Proceedings.pdf %0 Journal Article %J Ocean Engineering %D 2021 %T A deep supervised learning approach for condition-based maintenance of naval propulsion systems %A Berghout, Tarek %A Mouss, Leila-Hayet %A Bentrcia, Toufik %A Elbouchikhi, Elhoussin %A Benbouzid, Mohamed %X In the last years, predictive maintenance has gained a central position in condition-based maintenance tasks planning. Machine learning approaches have been very successful in simplifying the construction of prognostic models for health assessment based on available historical labeled data issued from similar systems or specific physical models. However, if the collected samples suffer from lack of labels (small labeled dataset or not enough samples), the process of generalization of the learning model on the dataset as well as on the newly arrived samples (application) can be very difficult. In an attempt to overcome such drawbacks, a new deep supervised learning approach is introduced in this paper. The proposed approach aims at extracting and learning important patterns even from a small amount of data in order to produce more general health estimator. The algorithm is trained online based on local receptive field theories of extreme learning machines using data issued from a propulsion system simulator. Compared to extreme learning machine variants, the new algorithm shows a higher level of accuracy in terms of approximation and generalization under several training paradigms. %B Ocean Engineering %V 221 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S0029801820314323 %N 1 %0 Journal Article %J Computación y Sistemas %D 2021 %T Detection of Flooding Attack on OBS Network Using Ant Colony Optimization and Machine Learning %A Seddik, Mohamed-Takieddine %A Ouahab KADRI %A Bouarouguene, Chakir %A Brahimi, Houssem %X Optical burst switching (OBS) has become one of the best and widely used optical networking techniques. It offers more efficient bandwidth usage than optical packet switching (OPS) and optical circuit switching (OCS).However, it undergoes more attacks than other techniques and the Classical security approach cannot solve its security problem. Therefore, a new security approach based on machine learning and cloud computing is proposed in this article. We used the Google Colab platform to apply Support Vector Machine (SVM) and Extreme Learning Machine (ELM)to Burst Header Packet (BHP) flooding attack on Optical Burst Switching (OBS) Network Data Set. %B Computación y Sistemas %V 25 %G eng %U https://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-55462021000200423 %N 2 %0 Journal Article %J Wireless Personal Communications %D 2021 %T Developing a Web Platform for the Management of the Predictive Maintenance in Smart Factories %A AKSA, Karima %A Samia Aitouche %A Bentoumi, Hamza %A Sersa, Ibrahim %X Industry 4.0 is a tsunami that will invade the whole world. The real challenge of the future factories requires a high degree of reliability both in machinery and equipment. Thereupon, shifting the rudder towards new trends is an inevitable obligation in this fourth industrial revolution where the maintenance system has radically changed to a new one called predictive maintenance 4.0 (PdM 4.0). This latter is used to avoid predicted problems of machines and increase their lifespan taking into account that if machines have not any predicted problem, they will never be checked. However, in order to get successful prediction of any kind of problems, minimizing energy and resources consumption along with saving costs, this PdM 4.0 needs many new emerging technologies such as the internet of things infrastructure, collection and distribution of data from different smart sensors, analyzing/interpreting a huge amount of data using machine/deep learning…etc. This paper is devoted to present the industry 4.0 and its specific technologies used to ameliorate the existing predictive maintenance strategy. An example is given via a web platform to get a clear idea of how PdM 4.0 is applied in smart factories. %B Wireless Personal Communications %V 119 %P pages1469–1497 %G eng %U https://link.springer.com/article/10.1007/s11277-021-08290-w %0 Journal Article %J INTERNATIONAL JOURNAL OF FUZZY SYSTEMS and ADVANCED APPLICATIONS %D 2021 %T Development of an Industrial Application with Neuro-Fuzzy Systems %A Sonia, Benaicha %A Zermane, Hannane %A Mouss, Leila-Hayet %A Bencherif, Fateh %X In this paper, our objective is dedicated to the detection of a deterioration in the estimated operating time by giving preventive action before a failure, and the classification of breakdowns after failure by giving the action of the diagnosis and / or maintenance. For this reason, we propose a new Neuro-fuzzy assistance prognosis system based on pattern recognition called "NFPROG" (Neuro Fuzzy Prognosis). NFPROG is an interactive simulation software, developed within the Laboratory of Automation and Production (LAP) -University of Batna, Algeria. It is a four-layer fuzzy preceptor whose architecture is based on Elman neural networks. This system is applied to the cement manufacturing process (cooking process) to the cement manufacturing company of Ain-Touta-Batna, Algeria. And since this company has an installation and configuration S7-400 of Siemens PLC PCS7was chosen as a programming language platform for our system. %B INTERNATIONAL JOURNAL OF FUZZY SYSTEMS and ADVANCED APPLICATIONS %V 8 %G eng %U https://www.naun.org/main/NAUN/fuzzy/2021/a062017-003(2021).pdf %0 Journal Article %J Inventory management in distribution networks remains a challenging task due to the demand nature and the limited storage capacity. In this work, we study a three-level, a multi-product and a multi-period distribution network consisting of a central ware %D 2021 %T Dynamic planning design of three level distribution network with horizontal and vertical exchange %A Benfriha, Abdennour -Ilyas %A Triqui-Sari, Lamia %A Bougloula, Aimade-Eddine %A Bennekrouf, Mohammed %X  Inventory management in distribution networks remains a challenging task due to the demand nature and the limited storage capacity. In this work, we study a three-level, a multi-product and a multi-period distribution network consisting of a central warehouse, three distribution centres and six wholesalers. Each of them faces a random demand. In order to optimise the inventory management in the distribution network, we first propose to make a horizontal cooperation between actors of the same level in the form of product exchange; then we propose a second approach based on vertical-horizontal cooperation. Both approaches are modelled as a MIP model and solved using the CPLEX solver. The objective of this study is to analyse the performance in terms of costs, quantities in stock and customer satisfaction. %B Inventory management in distribution networks remains a challenging task due to the demand nature and the limited storage capacity. In this work, we study a three-level, a multi-product and a multi-period distribution network consisting of a central ware %G eng %0 Thesis %B Génie Industriel %D 2021 %T Étude, mise en oeuvre et adaptabilité des outils de l’amélioration continue dans une industrie algérienne : Approches Théorique et Pratique %A Aouag, Hichem %X

Au cours des dernières années, les entreprises sont émergées dans un environnement concurrentiel avancé. Afin de répondre aux exigences de réduction des coûts, la demande des clients, les délais imposés, la qualité et l'amélioration de la variété, les entreprises doivent améliorer leur performance pour rester compétitives, survivre et se développer. Pour atteindre cet objectif, plusieurs modèles sont utilisés comme TQM (Total Quality Management), Kaizen, JAT (Just A Time), ERP (Enterprise Resource Planning), BPR (Business Process Reengineering) et Six Sigma, etc. Dans ce travail, nous nous sommes focalisés sur des modèles efficaces (aspirés de l’approche Six Sigma,) utilisés principalement pour justifier la compétitivité d'une entreprise. On s’intéresse particulièrement aux modèles DMAIC (Définir, Mesurer, Analyser, Innover et Contrôler, le modèle DPMO pondéré (défauts par million d'Opportunité) et au modèle ROF (Rendement optimal des flux. Ces modèles sont appliqués pour mesurer les niveaux de processus et d'évaluer la compétitivité de l'entreprise. Les résultats de ces modèles sont appliqués dans deux systèmes industriels de fabrication du ciment et des bouteilles à gaz.

%B Génie Industriel %G eng %U http://eprints.univ-batna2.dz/96/ %9 Doctorat en sciences %0 Journal Article %J Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science %D 2021 %T Fault prognostics of rolling element bearing based on feature extraction and supervised machine learning: Application to shaft wind turbine gearbox using vibration signal %A Gougam, Fawzi %A Chemseddine, Rahmoune %A Benazzouz, Djamel %A Zerhouni, Noureddine %A Benaggoune, Khaled %X Renewable energies offer new solutions to an ever-increasing energy demand. Wind energy is one of the main sources of electricity production, which uses winds to be converted to electrical energy with lower cost and environment saving. The major failures of a wind turbine occur in the bearings of high-speed shafts. This paper proposes the use of optimized machine learning to predict the Remaining Useful Life (RUL) of bearing based on vibration data and features extraction. Significant features are extracted from filtered band-pass of the squared raw signal where the health indicators are automatically selected using relief technique. Optimized Adaptive Neuro Fuzzy Inference System (ANFIS) by Partical Swarm Optimization (PSO) is used to model the non linear degradation of the extracted indicators. The proposed approach is applied on experimental setup of wind turbine where the results show its effectiveness for RUL estimation. %B Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science %V 235 %G eng %U https://journals.sagepub.com/doi/abs/10.1177/0954406220976154 %N 20 %0 Conference Paper %B International Conference on Computing Systems and Applications %D 2021 %T Hybrid Heuristic Optimization of an Integrated Production Distribution System with Stock and Transportation Costs %A Bensakhria, Mohamed %A Samir Abdelhamid %X In this paper we address the integration of two-level supply chain with multiple items, production facility and retailers’ demand over a considered discrete time horizon. This two-level production distribution system features capacitated production facility supplying several retailers located in the same region. If production does take place, this process incurs a fixed setup cost as well as unit production costs. In addition, deliveries are made from the plant to the retailers by a limited number of capacitated vehicles and routing costs are incurred. This work aims at implementing a solution to minimize the sum of the costs at the production facility and the retailers. The methodology adopted to tackle this issue is based on a hybrid heuristic, greedy and genetic algorithms that uses strong formulation to provide a good solution of a guaranteed quality that are as good or better than those provided by the MIP optimizer with a considerably larger run time. The results demonstrate that the proposed heuristics are effective and performs impressively in terms of computational efficiency and solution quality. %B International Conference on Computing Systems and Applications %I Lecture Notes in Networks and Systems book series %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-69418-0_11 %0 Journal Article %J . BizInfo (Blace) Journal of Economics, Management and Informatics %D 2021 %T A Hybrid Methodology based on heuristic algorithms for a production distribution system with routing decisions %A Bensakhria, Mohamed %A Samir Abdelhamid %X In this paper, we address the integration of a two-level supply chain with multiple items. This two-level production-distribution system features a capacitated production facility supplying several retailers located in the same region. If production does occur, this process incurs a fixed setup cost and unit production costs. Besides, deliveries are made from the plant to the retailers by a limited number of capacitated vehicles, routing costs incurred. This work aims to implement a minimization solution that reduces the total costs in both the production facility and retailers. The methodology adopted based on a hybrid heuristic, greedy and genetic algorithm uses strong formulation to provide a suitable solution of a guaranteed quality that is as good or better than those provided by the MIP optimizer. The results demonstrate that the proposed heuristics are effective and performs impressively in terms of computational efficiency and solution quality. %B . BizInfo (Blace) Journal of Economics, Management and Informatics %V 12 %P 1-22 %G eng %U https://scindeks-clanci.ceon.rs/data/pdf/2217-2769/2021/2217-27692102001B.pdf %N 2 %0 Thesis %B Génie industriel %D 2021 %T Implémentation et déploiement d’une nouvelle approche à base de Lean Six Sigma pour le développement et l’amélioration de la durabilité de la production des petites et moyennes entreprises %A Soltani, Mohyeddine %X

L’objectif de ce travail de thèse et de développer des nouvelles approches permettant aux petites et moyennes entreprises d’améliorer les performances de leur processus de fabrication. Nous avons développé trois approches aspirées du Lean Six Sigma (LSS) pour l’amélioration de la production dans un contexte conventionnel et classique d’une part et d’autre part dans un contexte de production durable. Dans la première approche nous avons proposé une approche Lean Six Sigma conventionnelle pour évaluer et suivre la compétitivité d’une PME en fonction des résultats obtenus par la méthode VSM. Dans la deuxième approche, nous avons proposé une nouvelle extension de l’approche LSS vers le contexte de la production durable en incorporant des algorithmes multicritères quantitatives. Cette approche nous a permis de surmonter quelques barrières au niveau du processus de l’application du LSS. Dans La troisième approche nous avons présenté une amélioration de l’approche LSS qui vise à montrer l’effet positif des algorithmes multicritères qualitatives flous pour surmonter certaines barrières du Lean Six Sigma liées aux phases d’analyse et d’amélioration de l’état actuel des processus de fabrication. Les approches proposées sont appliquées dans deux entreprise algériennes pour améliorer et contrôler la durabilité de leurs processus de fabrication.

%B Génie industriel %G eng %U http://eprints.univ-batna2.dz/1941/ %9 Doctorat LMD %0 Journal Article %J International Journal of Autonomous and Adaptive Communications Systems %D 2021 %T Industrial IoT middleware using a multi-agent system for consistency-based diagnostic in cement factory %A Benayache, Ayoub %A Azeddine Bilami %A Benaggoune, Khaled %A Mouss, Leila-Hayet %X With the evolution of the internet of things (IoT), and due to its significant need in the industry, Industrial IoT (IIoT) becomes the suitable naming for this accompaniment. IIoT changed the view of the industry intelligently and over the internet. This overlapping of IoT and industry requires special treatment when systems deal with heterogeneous devices in a distributed environment and complex tasks. In this paper, we propose a middleware solution based on multi-agents system (MAS) to handle the distributed control of complex systems autonomously in an industrial environment. The proposed middleware enables machine-to-machine (M2M) communications among the system’s components. In this work, we also addressed the distributed diagnostic for real industrial system using MAS with a new suitable communication strategy to support the heterogeneity and interoperability issued in IIoT and assure real-time monitoring and control. Finally, we present a qualitative evaluation of our solution on real case study (cement factory). %B International Journal of Autonomous and Adaptive Communications Systems %V 14 %G eng %U https://www.inderscienceonline.com/doi/abs/10.1504/IJAACS.2021.117805 %N 3 %0 Thesis %D 2021 %T INTÉGRATION D’UN MODULE DE RECONNAISSANCE DE LA PAROLE AU NIVEAU D’UN SYSTÈME AUDIOVISUEL - APPLICATION TÉLÉVISEUR %A Naima Zerari %X Cette thèse propose de concevoir et réaliser un système de reconnaissance automatique de la parole destiné à commander à distance un système audiovisuel à savoir : un Téléviseur. Le système global "bout en bout" se scinde en deux blocs : le premier cherche à extraire les meilleures caractéristiques à partir du signal vocal d’entrée. A cet effet, plusieurs techniques d’extraction de caractéristiques vont être examinées et testées. Concernant le deuxième bloc, nous mettons en évidence une multitude de techniques relevant du domaine de l’apprentissage profond, dont l’impact est d’adapter et de d’affirmer les caractéristiques extraites pour donner en final la classe de l’énoncé. La validation des différentes méthodologies présentées dans cette thèse a été effectuée sur la base de deux jeux de données réelles, le premier est tenu compte pour une évaluation initiale, tandis que le second est con\c cu exclusivement pour le système ASR proposé dans cette thèse. Les résultats obtenus ont certifié l’efficience des approches proposées. Le défi pour les travaux futurs est d’évaluer ce type de système dans des conditions plus réalistes avec des signaux vocaux issus des milieux bruités. %G eng %U http://eprints.univ-batna2.dz/1918/ %9 mastersDoctorat en sciences %0 Journal Article %J Energies %D 2021 %T Intelligent Condition Monitoring of Wind Power Systems: State of the Art Review %A Benbouzid, Mohamed %A Berghout, Tarek %A Sarma, Nur %A Djurović, Siniša %A Wu, Yueqi %A Ma, Xiandong %X Modern wind turbines operate in continuously transient conditions, with varying speed, torque, and power based on the stochastic nature of the wind resource. This variability affects not only the operational performance of the wind power system, but can also affect its integrity under service conditions. Condition monitoring continues to play an important role in achieving reliable and economic operation of wind turbines. This paper reviews the current advances in wind turbine condition monitoring, ranging from conventional condition monitoring and signal processing tools to machine-learning-based condition monitoring and usage of big data mining for predictive maintenance. A systematic review is presented of signal-based and data-driven modeling methodologies using intelligent and machine learning approaches, with the view to providing a critical evaluation of the recent developments in this area, and their applications in diagnosis, prognosis, health assessment, and predictive maintenance of wind turbines and farms. %B Energies %V 14 %G eng %U https://ideas.repec.org/a/gam/jeners/v14y2021i18p5967-d639498.html %N 18 %0 Conference Proceedings %B EKNOW 2021, %D 2021 %T knowledge sharing via the blockchain technology %A Samia Aitouche %B EKNOW 2021, %C Nice, France %G eng %0 Journal Article %J Energies %D 2021 %T Leveraging Label Information in a Knowledge-Driven Approach for Rolling-Element Bearings Remaining Useful Life Prediction %A Berghout, Tarek %A Benbouzid, Mohamed %A Mouss, ,Hayet-Leïla %X

Since bearing deterioration patterns are difficult to collect from real, long lifetime scenarios, data-driven research has been directed towards recovering them by imposing accelerated life tests. Consequently, insufficiently recovered features due to rapid damage propagation seem more likely to lead to poorly generalized learning machines. Knowledge-driven learning comes as a solution by providing prior assumptions from transfer learning. Likewise, the absence of true labels was able to create inconsistency related problems between samples, and teacher-given label behaviors led to more ill-posed predictors. Therefore, in an attempt to overcome the incomplete, unlabeled data drawbacks, a new autoencoder has been designed as an additional source that could correlate inputs and labels by exploiting label information in a completely unsupervised learning scheme. Additionally, its stacked denoising version seems to more robustly be able to recover them for new unseen data. Due to the non-stationary and sequentially driven nature of samples, recovered representations have been fed into a transfer learning, convolutional, long–short-term memory neural network for further meaningful learning representations. The assessment procedures were benchmarked against recent methods under different training datasets. The obtained results led to more efficiency confirming the strength of the new learning path.

%B Energies %V 14 %G eng %U https://www.mdpi.com/1996-1073/14/8/2163 %N 8 %0 Conference Proceedings %B 47th Annual Conference of the IEEE Industrial Electronics Society, IECON %D 2021 %T Machine Learning for Photovoltaic Systems Condition Monitoring: A Review %A Berghout, Tarek %A Benbouzid, Mohamed %A Ma, Xiandong %A Djurović, Siniša %A Mouss, Leila-Hayet %X Condition Monitoring of photovoltaic systems plays an important role in maintenance interventions due to its ability to solve problems of loss of energy production revenue. Nowadays, machine learning-based failure diagnosis is becoming increasingly growing as an alternative to various difficult physical-based interpretations and the main pile foundation for condition monitoring. As a result, several methods with different learning paradigms (e.g. deep learning, transfer learning, reinforcement learning, ensemble learning, etc.) have been used to address different condition monitoring issues. Therefore, the aim of this paper is at least, to shed light on the most relevant work that has been done so far in the field of photovoltaic systems machine learning-based condition monitoring. %B 47th Annual Conference of the IEEE Industrial Electronics Society, IECON %C Toronto, Canada %G eng %U https://ieeexplore.ieee.org/document/9589423 %0 Journal Article %J Energies %D 2021 %T Machine Learning-Based Condition Monitoring for PV Systems: State of the Art and Future Prospects %A Berghout, Tarek %A Benbouzid, Mohamed %A Bentrcia, Toufik %A Ma, Xiandong %A Djurović, Sini\v sa %A Mouss, Leila-Hayet %X To ensure the continuity of electric power generation for photovoltaic systems, condition monitoring frameworks are subject to major enhancements. The continuous uniform delivery of electric power depends entirely on a well-designed condition maintenance program. A just-in-time task to deal with several naturally occurring faults can be correctly undertaken via the cooperation of effective detection, diagnosis, and prognostic analyses. Therefore, the present review first outlines different failure modes to which all photovoltaic systems are subjected, in addition to the essential integrated detection methods and technologies. Then, data-driven paradigms, and their contribution to solving this prediction problem, are also explored. Accordingly, this review primarily investigates the different learning architectures used (i.e., ordinary, hybrid, and ensemble) in relation to their learning frameworks (i.e., traditional and deep learning). It also discusses the extension of machine learning to knowledge-driven approaches, including generative models such as adversarial networks and transfer learning. Finally, this review provides insights into different works to highlight various operating conditions and different numbers and types of failures, and provides links to some publicly available datasets in the field. The clear organization of the abundant information on this subject may result in rigorous guidelines for the trends adopted in the future. %B Energies %V 14 %G eng %U https://www.mdpi.com/1996-1073/14/19/6316 %N 19 %0 Thesis %D 2021 %T Modélisation de projet de conception de produit pour atténuer les risques dans les processus de développement: Étude et analyse de la performance industrielle %A Bencherif, Fateh %G eng %9 mastersDoctorat en sciences %0 Conference Proceedings %B First International Conference On Energy, Thermofluids And Materials Engineering, ICETME 2021 Held Online From 18 To 20 December, 2021. %D 2021 %T Monitoring The Product Quality Using The Iiot Data %A Baguigui, S %A AKSA, Karima %A Habchi, A-S %B First International Conference On Energy, Thermofluids And Materials Engineering, ICETME 2021 Held Online From 18 To 20 December, 2021. %C Biskra Algerie %G eng %0 Conference Paper %B International Conference on Artificial Intelligence in Renewable Energetic Systems(IC-AIRES’21 ) %D 2021 %T Multi-Objective Optimization of Stand-Alone Hybrid Renewable Energy System for Rural Electrification in Algeria %A Hadda Zereg %A Hassen Bouzgou %X This paper proposes an optimum design of a diesel/PV/wind/battery hybrid renewable energy system (HRES) for rural electrification in a remote district in Tamanrasset, Algeria. In this study, a particle swarm optimization algorithm (PSO) has been proposed to solve a multi-objective optimization problem, which was created by carrying out simultaneously, the cost of energy (COE) minimization while maximizing the reliability of power supply described as the loss of power supply probability (LPSP) and a renewable fraction (RF). The simulation results show that the PV/WT/DG/BT is the best economic configuration with a reasonable annual cost of the optimal system (ACS) which is about 7798.71 $ and the COE equal to 0.79 $/kWh for an LPSP = 0.01%, where the ten households are 0.99 % satisfied by renewable energy sources. %B International Conference on Artificial Intelligence in Renewable Energetic Systems(IC-AIRES’21 ) %I Lecture Notes in Networks and Systems %C Tipasa, Algeria %V 361 %P 21–33 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-92038-8_3 %0 Journal Article %J International Journal on Electrical Engineering and Informatics %D 2021 %T Multiple Features Extraction and Classifiers Combination Based Handwriting Digit Recognition %A Derdour, Khedidja %A Mouss, Leila-Hayet %A Bensaadi, Rafik %X In this paper, we present a system for handwriting digit recognition using different invariant features extraction and multiple classifiers. In the feature extraction we use four types: cavities, Zernike moments, Hu moments, Histogram of Gradient (HOG). Firstly, the features are used independently by five classifiers: K-nearest neighbor (KNN), Support Vector Machines (SVM) one versus one, SVM one versus all, Decision Tree, MLP. Then to achieve the best possible classification performance in terms of recognition rate, three methods of classifiers Combination rule employed: majority vote, Borda count and maximum rule. Experiments are performed on the well-known MNIST database of handwritten digits. The results demonstrated that the combination of KNN using HOG features with SVMOVA using Zernike moments by Borda count rule have considered to be good based on a geometric transformation invariance. %B International Journal on Electrical Engineering and Informatics %V 13 %G eng %U https://www.proquest.com/openview/72acbcf9bceca23bc38c7d1df8734acb/1?pq-origsite=gscholar&cbl=316223 %N 1 %0 Thesis %D 2021 %T Optimisation Des Techniques de Sécurisation Du Logiciel Via l’Analyse des Codes Malveillants %A Ourlis, Lazhar %X De nos jours, la plupart des moteurs d’analyse de solutions anti-malware sont heuristiques. Ils classent les objets, les flux de données ainsi que les zones mémoires comme bénins ou malveillants en fonction de leur comportement. La plupart des fabricants d’antivirus reconnaissent que l’approche heuristique permet d’atteindre jusqu’à 90% d’efficacité en termes de taux de détection, mais consomme davantage de ressources systèmes : de tels moteurs anti-malware, disponibles en open-source, sont extrêmement inefficaces en termes d’utilisation de ressources système car ils font souvent appel à des algorithmes d’apprentissage automatique. Pour réduire cette charge système, il est fortement recommandé d’utiliser la détection par signature statique, qui permet de filtrer à elle seule la majorité des échantillons de programmes malveillants connus, en conjonction avec les technologies de détection heuristiques et celles basées sur le cloud. Dans ce travail, nous présentons un scanner de signatures rapide pour la détection de programmes malveillants, basé sur une version améliorée de l’algorithme Aho-Corasick pour la recherche de cha{\^ınes de caractères (ou motifs), con\c cue pour pouvoir bénéficier des techniques de vectorisation qui ajoutent une forme de parallélisme de données au code de l’algorithme. La solution proposée est implémentée en utilisant le jeu d’instructions d’Intel® Advanced Vector Extensions (AVX2). %G eng %U http://eprints.univ-batna2.dz/1922/ %9 mastersDoctorat en sciences %0 Journal Article %J Algerian Journal of Environmental Science and Technology (ALJEST) %D 2021 %T Principles of Biology in Service of Technology: DNA Computing %A AKSA, Karima %X  As commonly known that living beings cannot survive without natural sources available on earth, technology is no exception; it cannot develop without the inspiring help given by the same nature. The field of biology has extensively participated in the computing field through the "code of life" DNA (Deoxyribo Nucleic Acid) since it was discovered by Adelman in the past century. This combination gave birth to DNA Computing, which is a very interesting new aspect of biochemistry. It works massively parallel with high energy efficiency, and requiring almost no space. The field of molecular computing is still new and as the field progresses from concepts to engineering, researchers will address these important issues.  By the use of encoding data into DNA strands, many NP-complete problems have been solved and many new efficient techniques have been proposed in cryptography field. The aim of this paper is to give an overview of bio-inspired system and to summarize the great role of DNA molecule in servicing of the technology field. %B Algerian Journal of Environmental Science and Technology (ALJEST) %V 7 %G eng %U https://www.aljest.net/index.php/aljest/article/view/292 %N 20 %0 Thesis %D 2021 %T Pronostic industriel distribué des systèmes complexes à base d'agents %A Khaled, Benaggoune %X Les systèmes industriels deviennent plus complexes en raison, notamment, de leur taille croissante et de l’intégration des nouvelles technologies. En vieillissant, ces systèmes deviennent plus vulnérables aux défaillances et leurs activités de maintenance sont difficiles et coûteuses. Cette situation, combinée aux exigences de productivité, de croissance des bénéfices, de disponibilité opérationnelle et de sécurité, pousse les praticiens et les chercheurs à développer des outils et des méthodes innovants. Les activités de maintenance constituent l’un des leviers possibles. En entretenant le système, nous pouvons réduire les coûts globaux de son cycle de vie, augmenter sa disponibilité, améliorer la sécurité des opérateurs et réduire les incidents environnementaux. Les tâches de maintenance peuvent être soit curatives, soit préventives. Cependant, cela n’est pas encore suffisant parce que les pièces de rechange ne sont pas disponibles ou pas suffisantes au moment de la panne ou simplement parce que les ressources nécessaires (les responsables de la maintenance) sont occupées. Une "meilleure" solution pourrait alors être une maintenance prédictive, qui peut être effectuée dans le framework du pronostic. Dans ce cadre nous essayons de prévoir l’état de santé du système, puis on planifie les actions appropriées en fonction des résultats des prévisions. Ce travail s’inscrit dans au domaine du pronostic de la PHM et de la gestion de la santé. Les techniques de PHM visent à prédire la durée de vie restante de l’équipement. Cependant, elles ont eu tendance à être utilisées dans un contexte local avec une intégration limitée des solutions distribuées. Dans les systèmes complexes, le comportement émergent est plus compliqué que la somme des comportements de leurs parties constitutives. Ce comportement implique la propagation de défauts entre les parties et nécessite des informations sur la fa\c con dont les parties sont liées. Dans cette thèse, nous proposons une approche multi-agent pour la prédiction de la RUL au niveau du système. Ensuite, l’approche proposée est étendue à la PHM médicale avec une étude de cas %G eng %U http://eprints.univ-batna2.dz/1964/ %9 mastersDoctorat LMD %0 Thesis %D 2021 %T Proposition d’un système distribué de diagnostic et pronostic basé sur les services Web et Extrême Learning Machine %A Berghout, Tarek %X Cette thèse traite de l’utilisation d’un outil de Machine Learning appelé "Extreme Learning Machine" dans le domaine du pronostic et de l’évaluation de la santé (e.g. estimation de la durée de vie utile restante (RUL)). Cet algorithme implique des méthodes de programmation linéaires qui reposent principalement sur les moindres carrés dans les paradigmes non linéaires des réseaux de neurones artificiels pour produire des estimateurs de santé très rapides et précis. D’autres parts, cette étude vise à distribuer le système de prédiction sur le web à l’aide de services Web pour résoudre les problèmes de répartition géographique de surveillance décentralisée. Sur la base de ce nouvel outil, de nombreux algorithmes d’apprentissage ont été développés dans le cadre de ce travail et comparés à d’autres algorithmes présents dans la littérature en termes de temps et de précision. La plupart des algorithmes développés sont inspirés des théories récentes de Deep Learning et ce en raison de leur bonne réputation. Les données étudiées dans ce travail de recherche sont tirées du logiciel C-MAPSS simulateur de système de propulsion aérodynamique développé par la NASA. Les résultats obtenus ont prouvé l’efficacité des nouveaux algorithmes et les recommandent pour une utilisation future dans le domaine de l’évaluation de la santé. %G eng %U http://eprints.univ-batna2.dz/1915/ %9 mastersDoctorat LMD %0 Book %D 2021 %T Proposition d’un tutoriel pour une usine apprenante (Textile de Batna) %A Ag Hameyni, Abdoulmadjid %A Samia Aitouche %A AKSA, Karima %X Le contexte actuel de globalisation et de concurrence accrue a entrainé les firmes à reconsidérer leurs stratégies d’internationalisation et à réexaminer les opportunités offertes et les risques associés. Les alliances stratégiques apparaissent ainsi comme des vecteurs privilégiés notamment par les firmes multinationales pour leurs nouvelles implantations.La communication et le travail d’équipe sont parmi les compétences les plus récurrents associés à une connaissance des sciences de l’ingénieur. Cependant, leur application n’est pas simple, en raison de l’absence d’approche pédagogique contribuant à développer des connaissances fondées sur l’expérience.Dans ce travail nous avons défini qu’est-ce qu’une organisation apprenante, qu’est-ce qu’un tutoriel et pourquoi un tutoriel personnalisé dans un métier, ses différentes formes et les démarches pour l’élaboration d’un tutoriel.Après nous avons donné une présentation de l’entreprise qu’est Textile Batna. Nous avons con\c cu un tutoriel pour l’entreprise sous forme d’un site Web. Pour cela, le langage UML a été utilisé. Les fonctionnalités du tutoriel ont été présentées. %7 universitaires europeennes %G eng %0 Journal Article %D 2021 %T Recherche Documentaire et Conception du Mémoire %A AKSA, Karima %X Le 4ème semestre d’un mastère de recherche est consacré à la réalisation d’un travail de recherche qui sera traduit par une conception et une rédaction d’un mémoire de fin d’études et finalement la préparation d’un exposé oral puis une soutenance.Le mémoire de fin d’études est une étape très importante dans la voie des études universitaires, car sans elle, l’étudiant ne peut pas acquérir la qualité de diplômé.Alors, dans ce petit livre vous pouvez trouver un petit guide sur: - La fa\c con d’organisation de votre mémoire. - La présentation de votre soutenance. - La rédaction d’un travail de recherche. - La préparation d’un poster.Le 4ème semestre d’un mastère de recherche est consacré à la réalisation d’un travail de recherche qui sera traduit par une conception et une rédaction d’un mémoire de fin d’études et finalement la préparation d’un exposé oral puis une soutenance.Le mémoire de fin d’études est une étape très importante dans la voie des études universitaires, car sans elle, l’étudiant ne peut pas acquérir la qualité de diplômé.Alors, dans ce petit livre vous pouvez trouver un petit guide sur: La fa\c con d’organisation de votre mémoire. La présentation de votre soutenance. La rédaction d’un travail de recherche. La préparation d’un poster. %G eng %0 Conference Proceedings %B International Conference on Artificial Intelligence in Renewable Energetic Systems (IC-AIRES’21) %D 2021 %T Residual Networks with Long Short Term Memory for Hourly Solar Radiation Forecasting %A Louchene, Houssem-Eddine %A Hassen Bouzgou %A Gueymard, Chris %X This paper describes a new approach for hourly global solar radiation forecasting based on a hybrid artificial neural network technique combining a residual neural network (RESNET) for powerful feature extraction of the most relevant moments of the past, and a long short-term memory (LSTM) technique for efficient projection into the future. Based on 11 years of solar irradiance measurements at Tamanrasset, Algeria, four evaluation metrics are used to demonstrate the efficiency of the proposed method: coefficient of determination (R²), root-mean-square error (RMSE), mean absolute error (MAE), and mean absolute percentage error (MAPE). These metrics are also used to evaluate the performance of the model in comparison with two existing forecasting models used as benchmark: a particular technique of convolutional neural network (CNN) called 1-dimensional convolutional neural network (1D-CNN) and a conventional LSTM. The present results indicate that the proposed RESNET-LSTM model outperforms the other models in terms of all statistical indicators. %B International Conference on Artificial Intelligence in Renewable Energetic Systems (IC-AIRES’21) %C Tipasa, Algeria %G eng %U https://www.researchgate.net/publication/355916572_Residual_Networks_with_Long_Short_Term_Memory_for_Hourly_Solar_Radiation_Forecasting %0 Conference Proceedings %B The First International Conference on Renewable Energy Advanced Technologies and Applications %D 2021 %T Sample Entropy with One-Stage Variational Mode Decomposition for Hourly Solar Irradiance Forecasting %A Nahed zemouri %A Hassen Bouzgou %A Christian A Gueymard %X Solar radiation forecasting is an important technology that is necessary to increase the performance, management, and control of modern electrical grids. It allows energy regulators to estimate the near-future output power of solar power plants, and can help to reduce the effects of power fluctuations on the electricity grid, thus increasing the overall efficiency and power quality of those plants [1]. However, the variable nature of solar irradiance poses a challenge in the exploitation of solar energy. In this context, forecasting techniques are now essential to ensure sustainable, reliable, and cost-effective solar energy production [2]. This paper proposes a hybrid machine learning model to forecast Global Horizontal Irradiance (GHI) in the short term (1-hour ahead). The experimental assessment of the model is done on the basis of an experimental dataset of 11 years of hourly GHI measurements from the BSRN Tamanrasset station in Algeria. The general framework of the proposed model is explained in Figure 1, and its main steps are summarized as follows: %B The First International Conference on Renewable Energy Advanced Technologies and Applications %C Adrar, Algeria %G eng %U https://www.researchgate.net/profile/Abderrezzaq-Ziane/publication/357687664_ICREATA’21_Proceedings/links/61daf088b8305f7c4b3195cf/ICREATA21-Proceedings.pdf %0 Journal Article %J IEEE Transactions on Instrumentation and Measurement (2022) %D 2021 %T A Semi-Supervised Deep Transfer Learning Approach for Rolling-Element Bearing Remaining Useful Life Prediction %A Berghout, Tarek %A Mouss, Leïla-Hayet %A Bentrcia, Toufik %A Benbouzid, Mohamed %X Deep learning techniques have recently brought many improvements in the field of neural network training, especially for prognosis and health management. The success of such an intelligent health assessment model depends not only on the availability of labeled historical data but also on the careful samples selection. However, in real operating systems such as induction machines, which generally have a long reliable life, storing the entire operation history, including deterioration (i.e., bearings), will be very expensive and difficult to feed accurately into the training model. Other alternatives sequentially store samples that hold degradation patterns similar to real ones in damage behavior by imposing an accelerated deterioration. Labels lack and differences in distributions caused by the imposed deterioration will ultimately discriminate the training model and limit its knowledge capacity. In an attempt to overcome these drawbacks, a novel sequence-by-sequence deep learning algorithm able to expand the generalization capacity by transferring obtained knowledge from life cycles of similar systems is proposed. The new algorithm aims to determine health status by involving long short-term memory neural network as a primary component of adaptive learning to extract both health stage and health index inferences. Experimental validation performed using the PRONOSTIA induction machine bearing degradation datasets clearly proves the capacity and higher performance of the proposed deep learning knowledge transfer-based prognosis approach. %B IEEE Transactions on Instrumentation and Measurement (2022) %V 37 %G eng %U https://ieeexplore.ieee.org/document/9552475 %N 2 %0 Conference Proceedings %B 47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021 %D 2021 %T Sequence-To-Sequence Health Index Estimation of Rolling Bearings with Long-Short Term Memory and Transfer Learning %A Berghout, Tarek %A Benbouzid, Mohamed %A Mouss, Leila-Hayet %X One of the main data-driven challenges when assessing bearing health is that training and test samples must be drawn from the same probability distribution. Indeed, it is difficult and almost rare to witness such a phenomenon in practical applications due to the constantly changing working conditions of rotating machines. In addition, collecting sufficient deterioration samples from the bearing life cycle is not possible due to the huge memory requirements and processing costs. As a result, accelerated life tests are believed to be the primary alternatives to such a situation. However, and unfortunately, the recorded samples always are subject to lack of real patterns. Therefore, in this paper, a transfer learning approach is performed to solve such kind of problem where PRONOSTICO dataset is used to assess the current procedures. %B 47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021 %C Toronto, Canada %G eng %U https://ieeexplore.ieee.org/document/9589114 %0 Journal Article %J International Journal of Internet Manufacturing and Services %D 2021 %T SOA-based distributed fault prognostic and diagnosis framework: an application for preheater cement cyclones %A Chouhal, Ouahiba %A Mahdaoui, Rafik %A Mouss, Leila-Hayet %X Complex engineering manufacturing systems require efficient online fault diagnosis methodologies to improve safety and reduce maintenance costs. Traditionally, diagnosis and prognosis approaches are centralised, but these solutions are difficult to implement on distributed systems; whereas a distributed approach of multiple diagnosis and prognosis agents can offer a solution. Also, controlling process plant from a remote location has several benefits including the ability to track and to assist in solving a problem that might arise. This paper presents a distributed and over prognosis and diagnosis approach for physical systems basing on multi agent system and service-oriented architecture. Specifics prognostic and diagnostic procedures and key modules of the architecture for web service-based distributed fault prognostic and diagnosis framework are detailed and developed for the preheater cement cyclones in the workshop of SCIMAT clinker. The experimental case study, reported in the present paper, shows encouraging results and fosters industrial technology transfer. %B International Journal of Internet Manufacturing and Services %V 8 %G eng %U https://www.inderscienceonline.com/doi/abs/10.1504/IJIMS.2021.114539 %N 1 %0 Thesis %D 2021 %T Supervision de Robot Manipulateur virtuel par Les réseaux de neurones et les réseaux de Petri %A Ghrieb, Abdel-Ouahab %X Dans ce travail de thèse, nous avons proposé un système de supervision appliqué sur un robot manipulateur à deux degrés de liberté. La supervision est utilisée pour assurer la reconfiguration en temps réel du robot. Dans ce système nous avons utilisé une nouvelle méthode de détection de défaut (FD) de frottement visqueux du robot supervisé combinée avec un module de commande tolérante aux défauts (FTC).Le premier module, basé sur une méthode de traitement appliquée sur des résidus, va permettre la détection de défaut pour bien estimer les corrections nécessaires du deuxième module. Une évaluation de l’effet de défaut durant la supervision a été faite. Par ailleurs, le protocole TCP pour le transfert des données entre le robot superviseur et le robot supervisé a été utilisé. Les résultats de simulation montrent que la méthode proposée corrige l’effet de défaut en utilisant les données qui arrivent d’un robot superviseur à distance. Ensuite, nous avons proposé une implémentation matérielle sur cible FPGA de l’algorithme de supervision dont le but est de valider notre contribution et d’assurer un traitement en temps réel dans le cas où il y a des robots réels. Par ailleurs, une étude comparative entre les performances des deux implémentations a été effectuée %G eng %U https://www.theses-algerie.com/2211862124311993/these-de-doctorat/universite-mustapha-ben-boulaid–-batna-2/supervision-d-un-robot-manipulateur-virtuel-par-les-r%C3%A9seaux-de-neurones %9 mastersDoctorat LMD %0 Conference Proceedings %B International Conference on Renewable Energy Advanced Technologie and Applications (ICREATA’21) %D 2021 %T Techno-Economic Analysis of a Stand-Alone Hybrid Renewable Energy System for Residentiel Electrification in Tamanrasset, Algeria %A Hadda Zereg %A Hassen Bouzgou %B International Conference on Renewable Energy Advanced Technologie and Applications (ICREATA’21) %C Adrar, Algeria %G eng %0 Journal Article %J Lecture Notes in Networks and Systems %D 2021 %T Towards Digital Twins Driven Breast Cancer Detection %A Meraghni, Safa %A Benaggoune, Khaled %A Al-Masry, Zeina %A Terrissa, Labib %A Devalland, Christine %A Zerhouni, Noureddine %X Digital twins have transformed the industrial world by changing the development phase of a product or the use of equipment. With the digital twin, the object’s evolution data allows us to anticipate and optimize its performance. Healthcare is in the midst of a digital transition towards personalized, predictive, preventive, and participatory medicine. The digital twin is one of the key tools of this change. In this work, DT is proposed for the diagnosis of breast cancer based on breast skin temperature. Research has focused on thermography as a non-invasive scanning solution for breast cancer diagnosis. However, body temperature is influenced by many factors, such as breast anatomy, physiological functions, blood pressure, etc. The proposed DT updates the bio-heat model’s temperature using the data collected by temperature sensors and complementary data from smart devices. Consequently, the proposed DT is personalized using the collected data to reflect the person’s behavior with whom it is connected. %B Lecture Notes in Networks and Systems %V 285 %P 87–99 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-80129-8_7 %0 Conference Paper %D 2021 %T Towards Digital Twins Driven Breast Cancer Detection %A Meraghni, Safa %A Benaggoune, Khaled %A Al Masry, Zeina %A Terrissa, Sadek-Labib %A Devalland, Christine %A Zerhouni, Noureddine %X Digital twins have transformed the industrial world by changing the development phase of a product or the use of equipment. With the digital twin, the object’s evolution data allows us to anticipate and optimize its performance. Healthcare is in the midst of a digital transition towards personalized, predictive, preventive, and participatory medicine. The digital twin is one of the key tools of this change. In this work, DT is proposed for the diagnosis of breast cancer based on breast skin temperature. Research has focused on thermography as a non-invasive scanning solution for breast cancer diagnosis. However, body temperature is influenced by many factors, such as breast anatomy, physiological functions, blood pressure, etc. The proposed DT updates the bio-heat model’s temperature using the data collected by temperature sensors and complementary data from smart devices. Consequently, the proposed DT is personalized using the collected data to reflect the person’s behavior with whom it is connected. %I Lecture Notes in Networks and Systems %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-80129-8_7 %0 Thesis %D 2021 %T Un Système de Reconnaissance de Formes Basé sur une Approche Multi-Classifieurs %A Derdour, Khedidja %X Améliorer la performance d’un système de reconnaissance de formes fait l’objet de recherche dans de nombreuses disciplines. On obtient cette amélioration par l’optimisation dans les différents partis du système de reconnaissance de formes : les prétraitements, l’extraction des paramètres caractéristique (primitives), la classification. Les travaux de recherche présentés dans cette thèse abordent le problème de la reconnaissance des chiffres arabe imprimés et manuscrits. L’objectif principal de ce travail est l’amélioration de la performance en terme de taux de reconnaissance par l’application d’un système multi classificateur (MCS). Différents classifieurs sont utilisés (KPPV, PMC, SVM, LDA, Arbre de décision, Na{\"ıve Bayesien, Pseudo inverse), à l’aide de différents types de vecteurs de caractéristiques extraite de l’image. Enfin, comme les performances de MCS dépendent des performances des classifieurs appliquée (les performances individuelles des classifieurs), et comme la performance d’un classifieur dépend ainsi des caractéristiques utilisé l’optimisation de l’extractions des primitives pertinentes est également abordée dans la thèse. Nous avons réalisé plusieurs simulations pour éprouver les classifications, en introduisant des améliorations dans les paramètres caractéristiques et en faisant des combinaisons de classifieurs. Dans une première partie, nous montrons l’intérêt de l’utilisation des paramètres caractéristique pertinente, à l’aide des classifieur individuelle (séparé, indépendants) comme source d’inspiration pour la conception de nouveaux paramètres. Nous proposons en particulier une amélioration de primitives pour la caractérisation des chiffres. On montre qu’il est possible de développer une solution efficace, à moindre coût en terme de réduction de vecteur caractéristique et transformation géométrique. Donc, Le système développé s’articule autour de quatre modules distincts. Un module de prétraitements, un d’extraction des paramètres caractéristique, un module de reconnaissance (classification) et un module de combinaison de classifieurs. Ce dernier est chargé de fusionner les sorties (décisions) de chaque classifieur basant sur des méthodes (règles) de fusion. Les résultats obtenus sur les bases des chiffres imprimés et la base MNIST des chiffres manuscrits sont prometteurs. Cette thèse apporte quelques contributions pour faire avancer notre compréhension dans ce domaine de recherche en pleine expansion %G eng %U http://eprints.univ-batna2.dz/1905/ %9 mastersDoctorat en sciences %0 Thesis %D 2021 %T Vers une Approche des Systèmes Multi-Agents et Méthodes d’Emergence pour la Maintenance Systématique %A Abdelhadi, Adel %X

L’objectif principal de notre thèse est de proposer des approches hybride basées sur les SMA d’un côté, et l’exploitation de méthodes d’émergences tels que les Algorithmes Génétiques (AG) et les algorithmes du Système Immunitaire Artificiel (SIA), pour mieux intégrer des politiques de maintenance préventive systématique dans les ateliers d’ordonnancement. L’objectif est de minimiser les temps d’exécutions pendant le déroulement de l’ordonnancement. Nous avons utilisé des opérateurs avancés tels que ; la clé aléatoire pour le codage, la sélection de classement, le croisement uniforme et la mutation ponctuelle unique. Par ailleurs, nous avons défini une nouvelle procédure de calcul d'affinité dans le cadre de l’approche FSHMAIA. Cette procédure est basée sur le calcul d’un rapport de similarité des anticorps. Pour cela, nous avons proposé un algorithme basé sur quatre critère pour calculer le rapport se similarité. Nous avons également évalué les adaptations de certaines heuristiques bien connues, y compris Johnson (m / 2, m / 2), NEHH, PCDT et PLDT, Un benchmark a été établi pour évaluer les algorithmes. Le benchmark contenu jusqu'à 100 jobs et 8 étages. Tous les résultats ont montré que le FSHMAIA donne les meilleurs résultats par rapport aux autres algorithmes, dans les trois politiques de la MP. L’originalité de cette thèse réside dans l’utilisation des SMA avec les AG et les SIA dans l’intégration des politiques de maintenance préventive systématique dans un ordonnancement de type flow shop hybride.

%G eng %U http://eprints.univ-batna2.dz/1019/ %9 Doctorat en sciences %0 Journal Article %J Revue Méditerranéenne des Télécommunications %D 2021 %T Vers une Nouvelle Révolution Industrielle : Industrie 4.0 %A AKSA, Karima %A Bouhafna, Khayreddine %A BELAYATI, Souleymen %A DJEGHAR, Dina %X La quatrième révolution industrielle (nommée aussi l’Internet Industriel des Objets) dépend totalement sur la numérisation à travers l’Internet des objets et les réseaux virtuels. Cette révolution qui évolue à un rythme exponentiel, et non plus linéaire, va permettre la création d’usines, d’industries et de processus plus intelligents qui vont ensuite se traduire par une amélioration de la flexibilité, de la productivité et une meilleure utilisation des ressources matérielles et humaines. Cet article est consacré à introduire cette nouvelle révolution industrielle (industrie4.0), les technologies majeurs participant à son apparition, leur bénéfices attendus ainsi que leurs enjeux à prendre en considération. %B Revue Méditerranéenne des Télécommunications %V 11 %G eng %U https://revues.imist.ma/index.php/RMT/article/view/24027 %N 1 %0 Conference Proceedings %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021), 10-11 Novembre %D 2021 %T Analyse Numérique tridimensionnelle de l’interaction de Tunnels Jumeaux- étude de cas %A Zerdia, M %A Demagh, Rafik %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021), 10-11 Novembre %C Skikda, Algeria %G eng %U http://ftech.univ-skikda.dz/ISCMCE2021/ %0 Conference Proceedings %B Séminaire international sur l’ingénierie de la construction des villes (architecture, génie civil, hydraulique, travaux publics, urbanisme) %D 2021 %T Contribution à l’étude de valorisation des sédiments extraits du barrage de Koudiat Medouar dans les travaux de construction %A Benaicha, Amar Cherif %A Fourar, Ali %A Mansouri, Tarek %B Séminaire international sur l’ingénierie de la construction des villes (architecture, génie civil, hydraulique, travaux publics, urbanisme) %C Constantine, Algérie %G eng %U https://univ-constantine3.dz/appel-a-communication-du-seminaire-international-sur-lingenierie-de-la-construction-des-villes/ %0 Journal Article %J Civil Engineering Journal %D 2021 %T Effect of Masonry Infill Walls with Openings on Nonlinear Response of Steel Frames %A Rahem, Athmane %A Yahiaoui, Djarir %A Lahbari, Noureddine %A Tayeb Bouzid %X The infill walls are usually considered as nonstructural elements and, thus, are not taken into account in analytical models. However, numerous researches have shown that they can significantly affect the seismic response of the structures. The aim of the present study is to examine the role of masonry infill on the damage response of steel frame without and with various types of openings systems subjected to nonlinear static analysis and nonlinear time history analysis. For the purposes of the above investigation, a comprehensive assessment is conducted using twelve typical types of steel frame without masonry, with full masonry and with different heights and widths of openings. The results revealed that the influence of the successive earthquake phenomenon on the structural damage is larger for the infill buildings compared to the bare structures. Furthermore, when buildings with masonry infill are analyzed for seismic sequences, it is of great importance to account for the orientation of the seismic motion. The nonlinear static response indicated that the opening area has an influence on the maximal strength, the ductility and the initial rigidity of these frames. But the shape of the opening will not influence the global behavior. Then, the nonlinear time history analysis indicates that the global displacement is greatly decreased and even the behavior of the curve is affected by the earthquake intensity when opening is considered. %B Civil Engineering Journal %V 7 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2630 %N 2 %0 Journal Article %J Soils and Rocks %D 2021 %T Effects of underground circular void on strip footing laid on the edge of a cohesionless slope under eccentric loads %A Mansouri, Tarek %A Boufarh, Rafik %A Saadi, Djamel %X Owing to the comeback of small-scale models, this paper presents results of an experimental study based on the effect of underground circular voids on strip footing placed on the edge of a cohesionless slope and subjected to eccentric loads. The bearing capacity-settlement relationship of footing on the slope and impact of diverse variables are expressed using dimensionless parameters such as the top vertical distance of the void from the base of footing, horizontal space linking the void-footing centre, and load eccentricity. The results verified that the stability of strip footing is influenced by the underground void, as well as the critical depth between the soil and top layer of the void. The critical horizontal distance between the void and the centre was also affected by the underground void. Furthermore, the results also verified that the influence of the void appeared insignificant when it was positioned at a depth or eccentricity equal to twice the width of footing. %B Soils and Rocks %V 44 %G eng %U https://www.scielo.br/j/soiroc/a/DDM3dzjk6D7RkYbF6TjbnHw/abstract/?lang=en %N 1 %0 Conference Proceedings %B 1ère Edition des Journées Internationales en Géosciences et Environnement (JIGE2021) Agadir 26-27 Mars 2021. %D 2021 %T Etude de l'effet des cavités sur la capacité portante de deux fondations superficielles interférées reposant sur un sol granulaire %A Saadi, Djamel %A Boufarh, Rafik %A Mansouri, Tarek %A Abbeche, Khelifa %B 1ère Edition des Journées Internationales en Géosciences et Environnement (JIGE2021) Agadir 26-27 Mars 2021. %C Maroc %G eng %U https://www.facebook.com/100396625169861/posts/190567189486137/1905671/89486137/ %0 Conference Proceedings %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021) %D 2021 %T Etude numérique de la capacité portante d’une fondation renforcée par une colonne ballastée confinée par géogrille %A Boufarh, Rafik %A MANSOUR, T %A Boursas, Farid %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021) %C Skikda, Algeria %G eng %U http://ftech.univ-skikda.dz/ISCMCE2021/ %0 Conference Proceedings %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021),10-11 Novembre %D 2021 %T Évaluation de la capacité portante des sols stratifiés à l'aide d'un logiciel d'analyse par éléments finis. %A Amrane, Moussa %A Messast, Salah %A Demagh, Rafik %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021),10-11 Novembre %C Skikda, Algeria %G eng %0 Conference Proceedings %B Second International Conference on Civil Engineering (ICCE 2021) %D 2021 %T Identification and characterization of the swelling of a soil in the Boumagueur region-Batna- %A Mehdi Mebarki %A Karech, Toufik %A Derfouf, Feth-Ellah-Mounir %A Nabil, Abou-Bekr %X

This work is divided into two parts. In the first part, we are mainly interested in the detailed description and the geological, hydrogeological, climatological and geotechnical characterization of the Boumagueur study region. The second part shows the results of an experimental study carried out in the laboratory to determine the swelling parameters of a swelling clayey soil from Boumagueur region. Subsequently, a study of the suction influence on volume behavior and on swelling parameters was carried out.

%B Second International Conference on Civil Engineering (ICCE 2021) %C Laghouat, Algeria %G eng %U https://www.researchgate.net/publication/363699883_Identification_and_characterization_of_the_swelling_of_a_soil_in_the_Boumagueur_region_-Batna- %0 Conference Proceedings %B First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME’ 2021), 05-07 Décembre %D 2021 %T Impact of long-term soil deformations on the performance of RC bridges considering soil-structure interaction %A Bezih, Kamel %A Demagh, Rafik %A Djenane, Mohamed %A Laouche, M %B First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME’ 2021), 05-07 Décembre %C Biskra, Algérie %G eng %0 Conference Proceedings %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021), 10-11 Novembre, %D 2021 %T La Reponse D’une Fondation Superficielle A Une Infiltration Continue A La Surface Du Sol %A Amrane, Moussa %A Messast, Salah %A Demagh, Rafik %B The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021), 10-11 Novembre, %C Skikda, Algeria %G eng %0 Journal Article %J Civil Engineering Journal %D 2021 %T Mechanical Behavior of the Extraction Mud Dam for Use in the Manufacture of CEB %A Benaicha, Amar Cherif %A Fourar, Ali %A Mansouri, Tarek %A Massouh, Fawaz %X The aim of this work is to study the mechanical behavior of the sediments extracted from the Koudiet Meddaouar, Timgad dam (Algeria), for a possible valorization in the field for building works in order to minimize this phenomenon which is currently a concern for the operators and the persons in charge of the mobilization of the water resources. This siltation therefore severely limits its storage capacity and consequently it’s operating life. The extraction of the sediments accumulated in the dam’s reservoir is therefore imperative, on the pain of seeing it perish in the medium term. These sediments are, however, of great geotechnical and mechanical value. The results of the tests conducted in the laboratory have enabled us to identify the different sediments from a physical and geotechnical point of view In front of the difficulties noted in the control of the silting up of the dams in Algeria, a very important quantity of silt being deposited annually in the dams. In order to achieve our objective, different mixtures of silt with or without lime treatment, cement glass fibers and powdered fibers were studied for the possible manufacture of Compressed Earth Bricks (CEB). The results obtained show that some of the mixtures present very interesting results in the different tests (compression and bending), verifying the conditions of the standards in force and thus allowing their use in the field of the manufacture of building materials. %B Civil Engineering Journal %V 7 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2980 %N 10 %0 Conference Proceedings %B 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE 2021) %D 2021 %T Modélisation du comportement sur chemin de drainage-humidification de la marne de Boumagueur -Batna- %A Mehdi Mebarki %A al %B 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE 2021) %C Skikda, Algeria %G eng %0 Conference Proceedings %B First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME’ 2021) , 5-7 December %D 2021 %T Numerical Analysis of Movements Induced by Mechanized Twin Tunnels Excavation-Case Study %A Zerdia, M %A Demagh, R %B First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME’ 2021) , 5-7 December %C Biskra, Algeria %G eng %U https://icgsame.info/ %0 Journal Article %J Civil Engineering Journal %D 2021 %T Performance Assessment of Interaction Soil Pile Structure Using the Fragility Methodology %A Guettafi, Nesrine %A Yahiaoui, Djarir %A Abbeche, Khelifa %A Tayeb Bouzid %X This study aimed to investigate whether the seismic fragility and performance of interaction soil-pile-structure (ISPS) were affected by different parameters:  axial load, a section of the pile, and the longitudinal steel ratio of the pile were implanted in different type of sand (loose, medium, dense). In order to better understand the ISPS phenomena, a series of nonlinear static analysis have been conducted for two different cases, namely: (i) fixed system and (ii) ISPS system, to get the curves of the capacity of every parameter for developing the fragility curve. After a comparison of the numerical results of pushover analysis and fragility curves, the results indicate that these parameters are significantly influenced on lateral capacity, ductility and seismic fragility on the ISPS. The increasing in the axial load exhibit high probabilities of exceeding the damage state. The increase in pile section and longitudinal steel ratio, the effect of probability damage (low and high) are not only related to the propriety geometrically, but also related to the values of ductility and lateral capacity of the system. %B Civil Engineering Journal %V 7 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2632 %N 2 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Physico-mechanical Behaviors and Durability of Heated Fiber Concrete %A Benali, Redha %A Mellas, Mekki %A Baheddi, Mohamed %A Mansouri, Tarek %A Boufarh, Rafik %X The objective of the present manuscript is to describe the impact of polypropylene fibers on the behavior of heated concrete subjected to heating and cooling cycles at temperatures of 200, 450 and 600 °C respectively for six hours, through a series of experimental tests on mass loss, water absorption, porosity, compressive and tensile strength. For this purpose, mixes were prepared with a water/cement ratio with the incorporation of polypropylene fibers with a rate varying from 0.5 to 1.5%. These fibers were added in order to improve the thermal stability and to prevent the concrete from splitting. The results show that a considerable loss of strength was noticed for all tested specimens. The relative compressive strengths of the concretes containing polypropylene fibers were higher than those of the concretes without fibers. Also, a greater loss of mass of the polypropylene fibers compared to those without fibers was noticed when increasing the temperature. The flexural tensile strength of the concrete was more sensitive to elevated temperatures than the compressive strength and a rapid increase in porosity was observed for the fiber-reinforced concrete compared to the reference concrete. Furthermore, water absorption by the fibers is proportional to the fiber content of the concrete. %B Civil Engineering Journal %V 7 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2905 %N 9 %0 Journal Article %J Engineering, Technology & Applied Science Research %D 2021 %T The Proposition of an EI Equation of Square and L–Shaped Slender Reinforced Concrete Columns under Combined Loading %A Hamzaoui, L %A Tayeb Bouzid %X The stability and strength of slender Reinforced Concrete (RC) columns depend directly on the flexural stiffness EI, which is a major parameter in strain calculations including those with bending and axial load. Due to the non-linearity of the stress-strain curve of concrete, the effective bending stiffness EI always remains variable. Numerical simulations were performed for square and L-shaped reinforced concrete sections of slender columns subjected to an eccentric axial force to estimate the variation of El resulting from the actual behavior of the column, based on the moment-curvature relationship. Seventy thousand (70000) hypothetical slender columns, each with a different combination of variables, were used to investigate the main variables that affect the EI of RC slender columns. Using linear regression analysis, a new simple and linear expression of EI was developed. Slenderness, axial load level, and concrete strength have been identified as the most important factors affecting effective stiffness. Finally, the comparison between the results of the new equation and the methods proposed by ACI-318 and Euro Code-2 was carried out in connection with the experimental results of the literature. A good agreement of the results was found. %B Engineering, Technology & Applied Science Research %V 11 %P 7100-7106 %G eng %U https://www.etasr.com/index.php/ETASR/article/view/4048 %N 3 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Seismic Fragility Curves for Performance of Semi-rigid Connections of Steel Frames %A SAADI, Mohamed %A Yahiaoui, Djarir %A Lahbari, Noureddine %A Tayeb Bouzid %X A steel frame with a semi-rigid connection is one of the most widely used structural systems in modern construction. These systems are cheap to make, require less time to construct and offer the highest quality and reliable construction quality without the need for highly skilled workers. However, these systems show greater natural periods compared to their perfectly rigid frame counterparts. This causes the building to attract low loads during earthquakes. In this research study, the seismic performance of steel frames with semi-rigid joints is evaluated. Three connections with capacities of 50, 70 and 100% of the beam’s plastic moment are studied and examined. The seismic performance of these frames is determined by a non-linear static pushover analysis and an incremental dynamic analysis leading finally to the fragility curves which are developed. The results show that a decrease in the connection capacity increases the probability of reaching or exceeding a particular damage limit state in the frames is found. %B Civil Engineering Journal %V 7 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2898 %N 7 %0 Conference Proceedings %B 1er Séminaire national sur l’eau, géotechnique et environnement %D 2021 %T Study Of The Solid Transport And Their Impact Of The Silting Dams %A Benaicha, Amar Cherif %A Fourar, Ali %A Mansouri, Tarek %B 1er Séminaire national sur l’eau, géotechnique et environnement %C Mila, Algeria %G eng %U http://www.centre-univ-mila.dz/ %0 Conference Proceedings %B International Conference on Artificial Intelligence in Renewable Energetic Systems IC-AIRES 2021 %D 2021 %T ACO Tuned Fuzzy Second Order Sliding Mode Controller with Direct Torque Control of Induction Motor %A Ghoulemallah Boukhalfa %A Sebti, Belkacem %A Mazouz, Farida %X This work deals with the performance improvement study of the direct torque control (DTC) of induction Motor (IM) based on Fuzzy Second Order Sliding Mode Control (FSOSMC). Direct torque control using conventional Second Order Sliding Mode Control regulators has certain disadvantages such as significant flux, torque ripples and sensitivity to parametric variations. To overcome these drawbacks, we apply a new type with more robust regulators such as the fuzzy second order sliding mode control. In recent years, Ant Colony Optimization (ACO) algorithm have attracted considerable attention among various modern heuristic optimization techniques. This paper proposes the ant colony optimization algorithm with fuzzy second order sliding mode controller based direct torque control of induction motor to enhance the system performance and stability. Simulation results demonstrate the feasibility and validity of the proposed DTC-FSOSMC system by effectively accelerating system response, reducing torque and flux ripple and a very satisfactory performance has been achieved. %B International Conference on Artificial Intelligence in Renewable Energetic Systems IC-AIRES 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-92038-8_58 %0 Conference Proceedings %B 10th International Conference on Renewable Energy Research and Application (ICRERA) %D 2021 %T Backstepping Approach Based on Direct Power Control of a DFIG in WECS %A Mazouz, Farida %A Sebti, Belkacem %A Ghoulemallah Boukhalfa %A Ilhami, Colak %X This work deals with the study and performance improvement of the direct power control of DFIG based on backstepping Controller. Direct power control using hysteresis regulator has certain disadvantages such as significant powers ripples, variable switching frequency and sensitivity to parametric variations. To surmount these disadvantages, we present a robust controller such as the backstepping-based direct power control using SVM. A comparison study was made between the classic direct power control and the backstepping controller. The simulation results show that the backstepping controller provides good results reduces powers ripples. %B 10th International Conference on Renewable Energy Research and Application (ICRERA) %G eng %U https://ieeexplore.ieee.org/abstract/document/9598599 %0 Journal Article %J Revue Roumaine des Sciences Techniques - Serie Électrotechnique et Énergétique %D 2021 %T COMMANDE A FLUX VIRTUEL ORIENTE DE LA GENERATRICE ASYNCHRONE A CAGE DOUBLE ÉTOILE %A BENDJEDDOU, YACINE %A Abdessemed, Rachid %A MERABET, ELKHEIR %X Cet article est consacré à l’étude des performances de la génératrice asynchrone à cage double étoile (GASDE) en site isolé. Le système de commande est composé d’une GASDE raccordé à un bus continu et une charge en sortie de deux redresseurs à commande MLI. Une étude comparative entre la technique de commande conventionnelle et la commande adaptée basée sur l’introduction de la SVM-PI-flou et un nouvel estimateur de flux (flux virtuel statorique) afin d’améliorer la qualité d’énergie et d’atténuer les harmoniques du courant. %B Revue Roumaine des Sciences Techniques - Serie Électrotechnique et Énergétique %P 2021 %8 08 %G eng %0 Journal Article %J Journal of Measurements in Engineering %D 2021 %T Dual direct torque control of doubly fed induction machine using second order sliding mode control %A Boumaaraf, Farid %A BOUTABBA, Tarek %A Sebti, Belkacem %X In this paper a dual direct torque control (DDTC) strategy with second-order sliding mode control (SOSMC) controller of the doubly fed Induction motor (DFIM) is presented in order to overcome some drawback such as ripples in torque, flux and to improve dual direct torque control (DDTC) performance toward the electrical parameters variations. This control strategy used in the doubly fed induction machine supplied, coupled by two voltage source inverters in rotor and stator sides witches are linked to two switching tables in order to determined the rotor and stator flux vector control. This controller based on super-twisting algorithm (STA). Comparative results between a classical controller (PI) and the proposed controller can prove the very satisfactory performance and robustness of this new controller. %B Journal of Measurements in Engineering %V 9 %P 1-12 %G eng %U https://www.extrica.com/article/21432 %N 1 %0 Conference Proceedings %B 9th International Conference on Smart Grid (icSmartGrid) %D 2021 %T Fuzzy High Order Sliding Mode Control Based DPC of DFIG using SVM %A Mazouz, Farida %A Sebti, Belkacem %A Ilhami, Colak %X The direct power control of the doubly fed induction generator using conventional controllers is characterized by unsatisfactory performance: high ripples of stator powers and sensitivity to parametric variations. Among the most evoked control strategies adopted in this field to overcome these drawbacks presented in classical drive, it is worth mentioning the use of the higher law sliding mode developed on the super twisting algorithm associated with the fuzzy logic control in order to realize optimal command performance, Finally, the efficiency of the envisaged control scheme, is investigated against. The proposed regulation scheme is efficient in reducing the powers ripples; successfully suppress chatter and the effects of parametric variations that do not affect the performance of the regulation. %B 9th International Conference on Smart Grid (icSmartGrid) %G eng %U https://ieeexplore.ieee.org/abstract/document/9551262 %0 Journal Article %J International Journal of Electrical and Computer Engineering (IJECE) %D 2021 %T Fuzzy super twisting algorithm dual direct torque control of doubly fed induction machine %A Boumaaraf, Farid %A BOUTABBA, Tarek %A Sebti, Belkacem %X This paper proposes the fundamental aspects of hybrid nonlinear control which is composed of the super twisting algorithm (STA) based second order sliding mode control applying fuzzy logic method (FSOSMC), with pertinent simulation results for a doubly fed induction machine (DFIM) drive. To minimize chattering effect phenomenon due to Signum function employed in sliding mode algorithm, a new method is proposed. This technique consists in replacing the signum function by fuzzy switching function in the SOSMC to minimize flux and torque ripples. This FSOSMC is associated to the double direct torque control DDTC of the doubly fed induction machine (DFIM) by combining the advantages of fuzzy logic (FL) and the advantages of super-twisting sliding mode. The FSOSMC-DDTC strategy is compared with a PI-DDTC and SOSMC-DDTC. Simulation results demonstrate good efficiency and excellent robustness of the hybrid nonlinear controller. %B International Journal of Electrical and Computer Engineering (IJECE) %V 11 %P 3782 3790 %G eng %U https://www.researchgate.net/profile/Sebti-Belkacem/publication/352716005_Fuzzy_super_twisting_algorithm_dual_direct_torque_control_of_doubly_fed_induction_machine/links/60d4fa02a6fdcca0ddbc1c21/Fuzzy-super-twisting-algorithm-dual-direct-torque-control-of %N 5 %0 Journal Article %J U.P.B. Sci. Bull., Series C %D 2021 %T STRATÉGIE DE CONTRÔLE NON LINÉAIRE OPTIMISÉE POUR LE GÉNÉRATEUR SYNCHRONE À AIMANT PERMANENT (GSAP) DANS LE SYSTÈME DE CONVERSION DE L'ÉNERGIE ÉOLIENNE (SCEE) %A ZARROUKI, Mohamed-Baha-Eddine %A Said Benaggoune %A Abdessemed, Rachid %X L’article décrit la conception et la mise en øe}uvre en temps réel d’une commande non linéaire appliquée à un système de conversion de l’énergie éolienne (SCEE). La commande backstepping a été mise en øe}uvre pour améliorer les performances du système de conversion éolienne basé sur un générateur synchrone à aimants permanents (PMSG) connecté au réseau. Deux convertisseurs statiques assurent la connexion au réseau et sont contrôlés par la modulation de largeur d’impulsion (MLI). L’algorithme de contrôle proposé assure un contrôle de vitesse adéquat pour extraire la puissance maximale. Une description détaillée des lois de contrôle du backstepping basées sur la technique de stabilité de Lyapunov a été exposée. Les résultats obtenus par l’application de cette approche ont clairement répondu aux exigences de robustesse et de suivi des références même dans des conditions de vent fluctuants, et ont confirmé l’efficacité d’un tel contrôle dans les modes de fonctionnement statique et dynamique. %B U.P.B. Sci. Bull., Series C %V 83 %G eng %U https://www.scientificbulletin.upb.ro/rev_docs_arhiva/rez246_250633.pdf %N 1 %0 Journal Article %J Protection and Control of Modern Power Systems %D 2021 %T Super twisting sliding mode approach applied to voltage orientated control of a stand-alone induction generator %A BENDJEDDOU, YACINE %A Deboucha, Abdelhakim %A Bentouhami, Larafi %A MERABET, ELKHEIR %A Abdessemed, Rachid %X To enhance the robustness and dynamic performance of a self-excited induction generator (SEIG) used in a stand-alone wind energy system (WES), a virtual flux oriented control (VFOC) based on nonlinear super-twisting sliding mode control (STSMC) is adopted. STSMC is used to replace the conventional proportional-integral-Fuzzy Logic Controller (PI-FLC) of the inner current control loops. The combination of the proposed control strategy with space vector modulation (SVM) applied to a PWM rectifier brings many advantages such as reduction in harmonics, and precise and rapid tracking of the references. The performance of the proposed control technique (STSMC-VFOC-SVM) is verified through simulations and compared with the traditional technique (PI-FLC-VFOC-SVM). It shows that the proposed method improves the dynamics of the system with reduced current harmonics. In addition, the use of a virtual flux estimator instead of a phase-locked loop (PLL) eliminates the line voltage sensors and thus increases the reliability of the system. %B Protection and Control of Modern Power Systems %V 6 %P 18 %8 12 %G eng %U https://pcmp.springeropen.com/articles/10.1186/s41601-021-00201-2 %R 10.1186/s41601-021-00201-2 %0 Conference Proceedings %B 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11 %D 2021 %T The contribution of maintenance to improve the operational performance of an industrial process %A Khanfri, Nor-El-Houda %A Touahar, Hafed %A Ouazraoui, Nouara %A Mohammed, Antar Si %A Bouabid, Djamel %X In the petroleum industry, equipments must be maintained properly to meet the adequate reliability standards in order to achieve the desired business goals in terms of productivity, safety and environmental protection. This article offers a new approach focused on risk analysis to select a better maintenance strategy. The proposed approach consists of three stages. In the first step, we identify the accident scenarios that could lead to the loss of production and damage to the environment. In the second step, we estimate the frequency of occurrence of these scenarios. In the third step, we calculate the economic losses and environmental taxes. Finally, an appropriate maintenance strategy is proposed, taking into account the evaluation results obtained by the previous steps. A case study illustrates the proposed approach and shows that the latter constitutes an important decision support tool to improve the existing maintenance strategy to comply with regulations and standards in term of productivity, reduction of costs and environmental protection. %B 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11 %C Singapore, Malaisie %G eng %U http://www.ieomsociety.org/singapore2021/papers/480.pdf %0 Conference Proceedings %B 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11 %D 2021 %T The contribution of maintenance to improve the operational performance of an industrial process %A Khanfri, Nor-El-Houda %A Touahar, Hafed %A Ouazraoui, Nouara %A Mohammed, Antar Si %A Bouabid, Djamel %X In the petroleum industry, equipments must be maintained properly to meet the adequate reliability standards in order to achieve the desired business goals in terms of productivity, safety and environmental protection. This article offers a new approach focused on risk analysis to select a better maintenance strategy. The proposed approach consists of three stages. In the first step, we identify the accident scenarios that could lead to the loss of production and damage to the environment. In the second step, we estimate the frequency of occurrence of these scenarios. In the third step, we calculate the economic losses and environmental taxes. Finally, an appropriate maintenance strategy is proposed, taking into account the evaluation results obtained by the previous steps. A case study illustrates the proposed approach and shows that the latter constitutes an important decision support tool to improve the existing maintenance strategy to comply with regulations and standards in term of productivity, reduction of costs and environmental protection. %B 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11 %C Singapore, Malaisie %G eng %U http://www.ieomsociety.org/singapore2021/papers/480.pdf %0 Conference Proceedings %B 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11 %D 2021 %T Contribution of Model 24 to Accident Analysis %A Bousfot, Widad %A Saadia Saadi %A Mébarek Djebabra %X Workplace accidents (WAs) are and will remain a major concern for organizations’ managers. Their control requires putting in place a prevention strategy framed by several factors (human / social, economic, regulatory ...). The successful implementation of this strategy is conditioned on the ground, by the junction of three essential stages, namely: the analysis, evaluation and control of WAs. These three stages are interdependent where a successful control of an action plan is conditioned by a thorough assessment of an accident risk criticality. The latter depends on a good analysis of the accident. Indeed, a good analysis of WAs largely conditions their prevention strategy and that is why the analysis of WAs occupies a prominent place in such strategies. WAs analysis is conducted using appropriate models referred to as "WAs analysis models". Among those cited in the literature, we quote the model 24 that is a contemporary and more systematic model compared to other models. In this context that this article fits in, which aims to highlight its multiple contributions for the analysis of WAs. %B 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11 %C Singapore, Malaisie %G eng %U http://www.ieomsociety.org/singapore2021/papers/385.pdf %0 Conference Proceedings %B 11th Annual International Conference on Industrial Engineering and Operations Management %D 2021 %T Contribution to the quantitative study of violence in Algerian hospital environment %A Yamina Heddar %A Mébarek Djebabra %A Saadia Saadi %X The workplace, and more particularly the healthcare sector, has recently experienced a staggering increase in violence. These aggressive behaviors are resulting in considerable consequences on healthcare workers, both in terms of mental and physical health. In light of this observation, this study aims to provide a quantitative analysis of the potential causes leading to violence in Algerian hospitals, which have become the place where tensions arise, especially during these uncertain times caused by the COVID-19 pandemic. Therefore, we started with conducting a field survey, in order to highlight the main causes behind this violence, as well as the strategy in terms of how it is managed as a risk. Then we used ISHIKAWA diagrams to classify predefined causes into several categories and anticipate the likelihood of such violent behaviors. Finally, the results of this study revealed that working conditions were the main cause of violence in Algerian hospitals. In order to remedy this gap, we recommend improving the healthcare staff well-being, as well as prioritizing proactive measures preventing violent behaviors. %B 11th Annual International Conference on Industrial Engineering and Operations Management %G eng %U https://pesquisa.bvsalud.org/global-literature-on-novel-coronavirus-2019-ncov/resource/pt/covidwho-1399936 %0 Conference Proceedings %B Conférence nationale sur les accidents de la route en Algérie : causes, défis et solutions. 06 Décembre %D 2021 %T Etude des comportements des conducteurs : cas de la limitation de vitesses à l’entrée de la ville de Batna-Algérie %A Yamina Heddar %A Mébarek Djebabra %B Conférence nationale sur les accidents de la route en Algérie : causes, défis et solutions. 06 Décembre %C Batna, Algérie %G eng %0 Conference Proceedings %B Conférence internationale sur la contribution de la sécurité industrielle dans la prévention des accidents de travail et maladies professionnelles, les 07-08 Décembre %D 2021 %T Etude exploratoire de la performance des CPHS dans les entreprises pétrolières algériennes %A Bousfot, Widad %A Saadia Saadi %B Conférence internationale sur la contribution de la sécurité industrielle dans la prévention des accidents de travail et maladies professionnelles, les 07-08 Décembre %C Khemiss Melian, Algérie %G eng %0 Conference Proceedings %B Conférence internationale sur la contribution de la sécurité industrielle dans la prévention des accidents de travail et maladies professionnelles, les 07-08 Décembre %D 2021 %T Exploration des comportements des étudiants universitaires à l’ère de la pandémie COVID-19 %A Yamina Heddar %A Mébarek Djebabra %B Conférence internationale sur la contribution de la sécurité industrielle dans la prévention des accidents de travail et maladies professionnelles, les 07-08 Décembre %C Khemiss Melian, Algérie %G eng %0 Conference Proceedings %B 1st Asia Pacific Industrial Engineering and and Operations Management Conference virtually, July 9-11 %D 2021 %T Failure modes, effects, and diagnostic analysis (FMEDA) of ESD Valves in oil and gas industry %A Bensmaine, Omar %A Naït-Said, Rachid %A Zidani, Fatiha %X The Safety Instrumented System (SIS) is an automated system used to implement one or more safety instrumented functions. A SIS, like the Emergency Shutdown (ESD) system, consists of any combination of sensor(s), safety PLC(s) and final element(s) (e.g. ESD valves). ESD valves are the last line of defense against risks, although the ESD valve has high performance, the data (based on expert judgment and OREDA database) indicates that ESD valves failures are the most critical in the ESD systems. In order to improve the reliability and safety of these valves, we applied the FMEDA diagnostic technique. We started with a decomposition of the ESD valve to the subsystems and we identified their functions. Then we described the failure modes, their mechanisms, their sites and their effects. Then we identified the impact of each failure mode according to the criticality classes and identified the failure rates and their class according to the criticality and the detectability by automatic diagnosis of each mode and from the failure rates we calculated the Safe Failure Fraction (SFF) and Safety Integrity Level (SIL) required and we concluded that the actuator subsystem is the most critical system. Finally, we proposed preventive and protective measures to eliminate or reduce the risk of failure. %B 1st Asia Pacific Industrial Engineering and and Operations Management Conference virtually, July 9-11 %C Harbin, China %G eng %U http://www.ieomsociety.org/china2021/papers/103.pdf %0 Conference Proceedings %B المؤتمر الدولي الافتراضي حول المخاطر النفسية الاجتماعية في مجال العمل -التقييم و الوقاية على ضوء التجارب الإفريقية و الفرنسية %D 2021 %T Perception des risques psychosociaux en milieu hospitalier : evaluation et prévention %A Bennouna, Aida %A Abdelali Boughaba %B المؤتمر الدولي الافتراضي حول المخاطر النفسية الاجتماعية في مجال العمل -التقييم و الوقاية على ضوء التجارب الإفريقية و الفرنسية %C Constantine, Algérie %G eng %0 Book Section %B Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement %D 2021 %T 3D Printing Analysis by Powder Bed Printer (PBP) of a Thoracic Aorta Under Simufact Additive %A Ameddah, Hacene %A Mazouz, Hammoudi %X In recent decades, vascular surgery has seen the arrival of endovascular techniques for the treatment of vascular diseases such as aortic diseases (aneurysms, dissections, and atherosclerosis). The 3D printing process by addition of material gives an effector of choice to the digital chain, opening the way to the manufacture of shapes and complex geometries, impossible to achieve before with conventional methods. This chapter focuses on the bio-design study of the thoracic aorta in adults. A bio-design protocol was established based on medical imaging, extraction of the shape, and finally, the 3D modeling of the aorta; secondly, a bio-printing method based on 3D printing that could serve as regenerative medicine has been proposed. A simulation of the bio-printing process was carried out under the software Simufact Additive whose purpose is to predict the distortion and residual stress of the printed model. The binder injection printing technique in a Powder Bed Printer (PBP) bed is used. The results obtained are very acceptable compared with the results of the error elements found. %B Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement %P 774-785 %G eng %0 Journal Article %J Journal of Solid Mechanics %D 2021 %T Anisotropic and Isotropic Elasticity Applied for the Study of Elastic Fields Generated by Interfacial Dislocations in a Heterostructure of InAs/(001)GaAs Semiconductors %A Mekhloufi, Rafik %A Boussaha, Ahmed %A Benbouta, Rachid %A Baroura, Lazhar %X This work is a study of the elastic fields’ effect (stresses and displacements) caused by dislocations networks at a heterostructure interface of a InAs / GaAs semiconductors thin system in the cases of isotropic and anisotropic elasticity. The numerical study of this type of heterostructure aims to predict the behavior of the interface with respect to these elastic fields satisfying the boundary conditions. The method used is based on a development in Fourier series. The deformation near the dislocation is greater than the other locations far from the dislocation.      %B Journal of Solid Mechanics %V 13 %P 503-512 %G eng %U https://jsm.arak.iau.ir/article_682342.html %N 4 %0 Conference Proceedings %B 5th Tunisian Congress on Mechanics  COTUME 2020  22 au 24 Mars %D 2021 %T Computer Aided Inspection by Reverse Engineering for Reproduction of Gear Teeth %A Selloum, Rabia %A Ameddah, Hacene %A Mourad Brioua %X

In the industry, automated inspection is important for ensuring the high quality and allows acceleration of procedures for quality control of parts or mechanical assemblies. Although significant progress has been made in precision machining of complex surfaces, precision inspection of such surfaces remains a difficult problem. Thus the problem of the conformity of the parts of complex geometry is felt more and more. Motivated by the need to increase quality and reduce costs, and supported by the progress made in the field of it as well as the automation of production which in recent years has seen a considerable evolution in all these stages: from design to control through manufacturing. Due to, we used a 3D computer aided inspection technique on a physical gear using a coordinate measuring machine equipped with a “PC-DMIS” measurement and inspection software. Our work consists in developing a procedure for inspection for reproduction of gear profile by reconstruction of a circle involute gear from a cloud point’s measurement. In order to obtain a reliable result. In this works, we design the CAD-model of the part as accurately as possible (using a mathematical model) and matched with the 3D points cloud that represents the measurement that obtained from scanner. we compare the measurement cloud points from coordinate measurement machine with the mathematical model of construction by ICP (Iterative Closest Point) methods in order to obtain a conformed result and to show the impact of the dimensional inspection and geometric.

%B 5th Tunisian Congress on Mechanics  COTUME 2020  22 au 24 Mars %C Hammamet, Tunisia %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-86446-0_38 %0 Journal Article %J International Journal of Computer Integrated Manufacturing %D 2021 %T Design of graded lattice structures in turbine blades using topology optimization %A Alkebsi, Ebrahim Ahmed Ali %A Ameddah, Hacene %A OUTTAS, Toufik %A Almutawakel, Abdallah %X Designing and manufacturing lattice structures with Topology Optimization (TO) and Additive Manufacturing (AM) techniques is a novel method to create light-weight components with promising potential and high design flexibility. This paper proposes a new design of lightweight-graded lattice structures to replace the internal solid volume of the turbine blade to increase its endurance of high thermal stresses effects. The microstructure design of unit cells in a 3D framework is conducted by using the lattice structure topology optimization (LSTO) technique. The role of the LSTO is to find an optimal density distribution of lattice structures in the design space under specific stress constraints and fill the inner solid part of the blade with graded lattice structures. The derived implicit surfaces modelling is used from a triply periodic minimal surfaces (TPMS) to optimize the mechanical performances of lattice structures. Numerical results show the validity of the proposed method. The effectiveness and robustness of the constructed models are analysed by using finite element analysis. The simulation results show that the graded lattice structures in the improved designs have better efficiency in terms of lightweight (33.41–40.32%), stress (25.52–48.55%) and deformation (7.35–19.58%) compared to the initial design. %B International Journal of Computer Integrated Manufacturing %V 34 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/0951192X.2021.1872106 %N 4 %0 Conference Proceedings %B 7th International Scientific Researches Conference, September 7-8, %D 2021 %T AN EFFECTIVE STRAIN BASED SOLID ELEMENT FOR LINEAR ANALYSIS %A Chichoune, Samira %A Cherif Rebiai %A Elhachemi Bahloul %B 7th International Scientific Researches Conference, September 7-8, %C ADANA Turkey %G eng %0 Conference Proceedings %B 1ères Journées Nationales des Sciences des Matériaux (JNSM2021), les 17 et 18 Novembre %D 2021 %T Épreuve de qualification des soudeurs selon la norme 9606-1-2013 Soudage par fusion des aciers %A Mansouri, Salah %A Klaa, Eftikhar %B 1ères Journées Nationales des Sciences des Matériaux (JNSM2021), les 17 et 18 Novembre %C Batna, Algérie %G eng %0 Conference Proceedings %B 5th Tunisian Congress on Mechanics  COTUME 2020  Hammamet 22 au 24 Mars %D 2021 %T Fatigue behavior study of the biodegradabe cardiovascular stent %A Ameddah, Hacene %A Lounansa, Salim %A Mazouz, Hammoudi %X

In recent years the development of health science to improve people’s lives and reduce the death rate from cardiovascular disease, researchers have invested in the solution of stents to treat cardiovascular disease. Usually a permanent implant (metal stent) is used to treat a temporary disease, effective on elastic recoil and negative remodeling, but promoting intimate proliferation. This is combated by an active stent, which nevertheless induces chronic inflammation and delayed healing (because of active drugs), with the risk of late thrombosis. The idea of resolution leads to the study of the behavior of temporary stent biodegradable and bioresorbable, once the healing process is completed. The purpose of this study is to reduce the disadvantages of metal stents, to do this; a biodegradable material (polylactic acid) is used. The fatigue behavior of a stent after its placement using geometric parameters selected from clinical cases (diastole and systole). A finite element numerical study in the field of biomaterial fatigue is proposed in order to investigate and understand the biodegradable behavior of the stent. The results of the numerical study show the predicted lifetime of the biodegradable fragrance.

%B 5th Tunisian Congress on Mechanics  COTUME 2020  Hammamet 22 au 24 Mars %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-86446-0_6 %0 Conference Paper %B International Conference on Advances in Mechanical Engineering and Mechanics %D 2021 %T Inspection on a Three-Dimensional Measuring Machine for a Virtual Model for Additive Manufacturing %A Ameddah, Hacene %A Selloum, Rabia %A Mourad Brioua %X Today, and to quickly meet the high demands of variability, supply chain efficiency and energy optimization, business markets are looking for modern manufacturing technologies and as a solution, industry 4.0 is using the benefits of integrating modern manufacturing technologies and information systems to promote production capabilities. In this context, intelligent industry represents a new generation of automatic production systems based on the concepts of intelligent industry, intelligent manufacturing, control and intelligent inspection, such as inspection on coordinate measuring machines (CMMs). This technology allows many machines to be integrated into a plant and controlled online using the MBD (Model Based Design) quality system. The problem of conformity of parts with complex geometry is becoming more and more important. The objective of this work is to present a 3D inspection technique on a virtual model (MBD: Model Based Design), using a coordinate measuring machine equipped with a “POWER INSPECT” measurement and inspection software. The interest of this technique is to show the impact of the dimensional inspection and geometric tolerance process of the CAD model for the CAI (Computer aided Inspection) approach on the fidelity of the finished product for additive manufacturing (AM) including intelligent industry. %B International Conference on Advances in Mechanical Engineering and Mechanics %I Advances in Mechanical Engineering, Materials and Mechanics %P 138–143 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-52071-7_20 %0 Book Section %B Artificial Neural Network Applications in Business and Engineering %D 2021 %T Integrated Kinematic Machining Error Compensation for Impeller Rough Tool Paths Programming in a Step-Nc Format Using Neural Network Approach Prediction %A Ameddah, Hacene %X The most important components used in aerospace, ships, and automobiles are designed with free form surfaces. An impeller is one of the most important components that are difficult to machine because of its twisted blades. This research book is based on the premise that a STEP-NC program can document “generic” manufacturing information for an impeller. This way, a STEP-NC program can be made machine-independent and has an advantage over the conventional G-code-based NC program that is always generated for a specific CNC machine. Rough machining is recognized as the most crucial procedure influencing machining efficiency and is critical for the finishing process. The research work reported in this chapter focuses on introduces a fully STEP-compliant CNC by putting forward an interpolation algorithm for non uniform rational basic spline (NURBS) curve system for rough milling tool paths with an aim to solve the problems of kinematic errors solutions in five axis machine by neural network implementation. %B Artificial Neural Network Applications in Business and Engineering %V 7 %P 144-170 %G eng %0 Conference Proceedings %B International Asian Congress on Contemporary Sciences-v June 1-2, %D 2021 %T A new membrane finite element based on the strain Formulation for the analysis of 2-D structures %A Cherif Rebiai %B International Asian Congress on Contemporary Sciences-v June 1-2, %C Nakhchivan state university, Azerbaijan %G eng %0 Conference Proceedings %B SÉMINAIRE INTERNATIONAL SUR L’INDUSTRIE ET LA TECHNOLOGIE en ligne (webinaire), organisé par Algerian Journal of Engineering, Architecture and Urbanism le 12 et 13 Mars %D 2021 %T A new strain based membrane element for dynamic elastoplastic analysis. %A Cherif Rebiai %A Bahloul, Elhachemi and %B SÉMINAIRE INTERNATIONAL SUR L’INDUSTRIE ET LA TECHNOLOGIE en ligne (webinaire), organisé par Algerian Journal of Engineering, Architecture and Urbanism le 12 et 13 Mars %G eng %0 Conference Proceedings %B Symposium on Scientific Research- 3 October 29-30, %D 2021 %T NUMERICAL INVESTIGATION IN ELASTOPLASTIC DYNAMIC PROBLEMS BY STRAIN BASED APPROACH %A Cherif Rebiai %A Saidani, N %A Elhachemi Bahloul %B Symposium on Scientific Research- 3 October 29-30, %C Ankara, Turkey %G eng %0 Book Section %B Artificial Neural Network Applications in Business and Engineering %D 2021 %T A Particle Swarm Optimization-Based Approach for Finding Reliability in a Total Hip Prosthesis %A Bouakkar, Loubna %A Ameddah, Hacene %A Mazouz, Hammoudi %X Nowadays, we assist the global extension of reliability optimization problems from the design phase of systems and sub-systems to the design and operational phases, not only of systems and sub-systems, but also of bio functionality design. This chapter investigates the relative performances of particle swarm optimization (PSO) variants when used to find reliability in the total hip prosthesis by finding the maximization of jumping distance (JD) to avoid dislocation and the minimization of system’s stability to offer mobility. Statistical analysis of different cases of head diameters of 22, 28, 36, 40 mm has been conducted to survey the convergence and relative performances of the main PSO variants when applied to solve reliability in the total hip prosthesis. %B Artificial Neural Network Applications in Business and Engineering %V 10 %P 222-242 %G eng %0 Journal Article %J Revue des Composites et des Matériaux Avancés %D 2021 %T A Study of the Thermo-Mechanical Behavior of a Gas Turbine Blade in Composite Materials Reinforced with Mast %A Khalid, Faiza %A Manaa, Rabah %A Saad, Salah %A Ameddah, Hacene %X The turbine blades are subjected to high operating temperatures and high centrifugal tensile stress due to rotational speeds. The maximum temperature at the inlet of the turbine is currently limited by the resistance of the materials used for the blades. The present paper is focused on the thermo-mechanical behavior of the blade in composite materials with reinforced mast under two different types of loading. The material studied in this work is a composite material, the selected matrix is a technical ceramic which is alumina (aluminum oxide Al2O3) and the reinforcement is carried out by short fibers of high modulus carbon to optimize a percentage of 40% carbon and 60% of ceramics. The simulation was performed numerically by Ansys (Workbench 16.0) software. The comparative analysis was conducted to determine displacements, strains and Von Mises stress of composite material and then compared to other materials such as Titanium Alloy, Stainless Steel Alloy, and Aluminum 2024 Alloy. The results were compared in order to select the material with the best performance in terms of rigidity under thermomechanical stresses. While comparing these materials, it is found that composite material is better suited for high temperature applications. On evaluating the graphs drawn for, strains and displacements, the blade in composite materials reinforced with mast is considered as optimum. %B Revue des Composites et des Matériaux Avancés %V 31 %P 101-108 %G eng %U https://web.p.ebscohost.com/abstract?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=11697954&AN=150327484&h=7ulgGLhEK1cHheH7WT%2fPldRi3xnIKlqCCBtv1hAmPM9ba9zSe9KSz8CP5sMGQ30ty4ok%2f4GMtFxU4Teg6NsurQ%3d%3d&crl=c&resultNs=AdminWebAuth&resultLoca %N 2 %0 Journal Article %J Arabian Journal of Geosciences %D 2021 %T Characterization of Cenomanian-Turonian oxic facies in Tunisia: sequence stratigraphy and correlation of recorded bioevents %A Hanini, Amine %A Houla, Yassine %A DJAIZ, Foued %A Chairat, Imen %A Boughdiri, Mabrouk %A Maamri, Ridha %A Zagrarni,Mohamed-Faouzi %X On the southwestern Tethyan Margin of Tunisia, the well-known anoxic black shale facies of the Cenomanian-Turonian transition contrasts with oxic fossiliferous carbonates, first characterized here as lateral equivalents. In terms of sequence stratigraphy, the analysis of four wisely sampled sections in Central and Southern Tunisia led to interpret these deposits as a transgressive interval (TST). This interval spans the Whiteinella archaeocretacea Zone of foraminifera and is capped with a glauconite-rich highly bioturbated maximum flooding surface (MFS). In the reference section of Oued Bahloul and the Kalaat Senan area of North-Central Tunisia, these deposits overlay a Shelf Margin Wedge made of conglomeratic and bioclastic limestones. In South-Central and Southern Tunisia, the TST is characterized by the onset of oxic facies relaying laminated carbonates with local emergence surfaces. The analysis of both oxic and anoxic facies from the Cenomanian-Turonian transition allows identifying five successive bioevent markers, known elsewhere within the Tethyan domain: the extinction of the foraminifera genus Rotalipora (or Thomasinella), the Heterohelix shift, the Whiteinella proliferation, the filament event, and the appearance of Helvetotruncana helvetica. Among these bioevents, the Heterohelix shift coincides with the transgressive surface, while the filament event announces the maximal flooding surface. These Cenomanian-Turonian transition bioevents are of a particular relevance for regional and long-distance high-resolution correlations. %B Arabian Journal of Geosciences %V 14 %G eng %0 Journal Article %J Italian Journal of Groundwater ACQUE SOTTERRANEE %D 2021 %T Initial assessment of the groundwater flow and budget using Geographic Information System, MODFLOW-2005 and the FREEWAT modeling tool in Bouteldja coastal aquifer (Northern East of Algeria) %A Harizi, Khaled %A MENANI, Mohamed Redha %A Chabour, Nabil %A Labar, Sofiane %X The Bouteldja coastal aquifer is one of the most important groundwater resources in North eastern of Algeria. The region is under a sub-humid climate with an average rainfall of 600-880 mm/y. The unconfined aquifer is constituted of Quaternary sands formations. The hydrogeological characteristics were determined based on previous reports. A very important inflow recharges the sandy aquifer in the Southeastern boundary, in relation to a fault network system linking the aquifer and the Obeira Lake area. Another inflow is observed at the Southern boundary in relation to the exchanges with the alluvial aquifer of Bouteldja. The purpose of the present study is to provide an initial assessment of the groundwater flow and water budget of this aquifer. To achieve this goal, a one-layer groundwater flow numerical model was developed using the MODFLOW-2005 code and the FREEWAT software, using the available data. The model was run in steady state conditions. Calibration was achieved using the piezometric measurements of May 2018 as calibration target. After several trials of manual calibrations, the model successfully simulated the groundwater flows directions and heads. Calibration efforts lead to an acceptable concordance (for the purpose of this study) between the estimated and calculated hydraulic conductivity and piezometric heads, except at the Eastern border. The analyses of the simulated inflow budget shows that aside the rainfall infiltration, exchanges with surface water bodies, the adjoining alluvial aquifer and the fault system provide a relevant amount of water. This significant recharge needs additional investigations. This numerical modeling exercise using MODFLOW, the FREEWAT software and GIS reached the objective of a preliminary description of the groundwater flow and it represents an acceptable starting point for more thorough hydrodynamic characterization of the Bouteldja coastal aquifer. %B Italian Journal of Groundwater ACQUE SOTTERRANEE %V 10 %G eng %U https://www.acquesotterranee.net/index.php/acque/article/view/511 %N 3 %0 Journal Article %J ACTA GEOBALCANICA %D 2021 %T paleoenvironmental study of oum ali region(tébessa, algeria) during quaternary, through the study of fluvial terrace of khenigue wadi %A Defaflia, Nabil %A Djaiz, Fouad %A Fehdi, Chamseddine %X Stratigraphic, sedimentological and magnetic study was performed on alluvial terraces, rich in archaeological tools, the region of OUM ALI, in north-eastern Algeria. The sedimentological points of view, the sediments are dominated by the sand fraction followed by the silt fraction; moderate concentrations of CaCO3 are the result of the dissolution of the surrounding limestone reliefs (Maastrichtian limestone). The morphoscopic observation of quartz grains with a dissecting microscope allows us to offer more or less significant changes, since they are often dull or sub-blunted. The results of the magnetic survey are consistent with those of the sedimentological study. The values of magnetic susceptibility are strong in the middle part of the stratigraphic section (just above the archaeological level) and decrease slightly at the top. Lower values are stored in the lower part. The dependence of frequency values of magnetic susceptibility (fd) are strong throughout the stratigraphic section and show the presence of a mixture of single-domain grain size (R), pseudo-single domain (PMD) and superparamagnetic (SP) (with a predominance of SP grains). The high concentration of SP grain size reveals the presence of significant soil formation during the implementation of the sediment %B ACTA GEOBALCANICA %V 7 %P 151-157 %G eng %U https://www.geobalcanica.org/wp-content/uploads/AGB/2021/AGB-2021-7-21.pdf %N 4 %0 Journal Article %J Hydrological Sciences Journal %D 2021 %T Using vadose-zone water stable isotope profiles for assessing groundwater recharge under different climatic conditions %A Boumaiza, Lamine %A Chesnaux, Romain %A Drias, Tarek %A Walter, Julien %A Stumpp, Christine %X Considering three sites under different climate conditions (arid, semi-arid, and subhumid), this study aims to use the vadose-zone water stable isotope profiles to estimate the groundwater recharge rate. High-resolution vertical subsurface soil sampling along the vadose zone of the investigated sites was conducted. The collected samples were analysed to determine their stable isotope ratios (δ2H and δ18O) that were used along with the piston displacement method to estimate recharge. Annual recharge rates of 0.2% (± 0.1%), 2.5%, and 18% of the total annual precipitation were obtained for the arid, semi-arid, and subhumid sites, respectively. Recharge rates at the semi-arid and subhumid sites are comparable to those previously estimated using water balance-based methods. The recharge rate at the arid site is lower than that previously estimated for that site using the water budget-based method, revealing difficulties in applying the piston displacement method under an arid regime. %B Hydrological Sciences Journal %V 66 %G eng %U https://www.tandfonline.com/doi/full/10.1080/02626667.2021.1957479 %N 10 %0 Journal Article %J Analele Universităţii din Oradea: Seria Geografie %D 2021 %T THE VERTICAL DISTRIBUTION OF THE ALLUVIAL CHEMO-FACIES OF BOUMERZOUG WADI, CONSTANTINE, NORTHEASTERN ALGERIA: PALEOENVEROMENTAL SIGNIFICANCE AND CLIMATE EVOLUTION %A RABAHI, Noureddine %A DJAIZ, Foued %A Defaflia, Nabil %A Guastaldi, Enrico %A Amroune, Abdelouahab %X

The authorities of Constantine city have been working on the redevelopment and calibration of the Rhumel and Boumerzoug wadis since 2015. The latter calebrage works caused great damage to the banks, thus affecting the Quaternary geological formations in place (alluvial terraces, flood plains). A multidisciplinary research project based on a geomorphological and sedimentological approach was quickly set up to create a scientific data base before their total destruction and loss of physical traces all along the wadis. The present study focuses on the sedimentological and geochemical analysis of the alluvial deposits of Boumerzoug wadi in order to describe the sediments, to reconstitute their nature, and to interpret both the climatic evolution and the paleo-environments of the region. Sedimentological and geochemical results confirm the succession of deposition cycles linked to progressive climate change.

%B Analele Universităţii din Oradea: Seria Geografie %V 31 %P 68-79 %G eng %U https://d1wqtxts1xzle7.cloudfront.net/84550251/auog.311108-865-libre.pdf?1650469151=&response-content-disposition=inline%3B+filename%3DThe_Vertical_Distribution_of_the_Alluvia.pdf&Expires=1663166053&Signature=GgE6IslXDLa0uV9lBn–z69CxZVgU3Cu8BAoi2RqaTXm9 %N 1 %0 Journal Article %J Advances in Operator Theory %D 2021 %T Weighted variable Hardy spaces on domains %A Melkemi, Oussama %A Saibi, Khedoudj %A Mokhtari, Zouhir %X In this paper, we introduce and study the weighted variable Hardy space ondomains. We prove the atomic decompositions of this space, and as application, wefigure out its dual space. %B Advances in Operator Theory %V 6 %G eng %U https://doi.org/10.1007/s43036-021-00151-4 %N 56 %0 Conference Paper %B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI), 21-22 Sept %D 2021 %T Maximization of the Stability Radius of an Infinite Dimensional System Subjected to Stochastic Unbounded Structured Multi-perturbations With Unbounded Input Operator %A Amina, Heddar %A Maissa, Kada %X

In this paper we consider infinite dimensional systems subjected to stochastic structured multiperturbations. We address the problem of robustness optimization with respect to state feedback but allow both unbounded input and perturbations. Conditions are derived for the existence of a stabilizing controller ensuring that the norm of the closed loop operator below a prespecified bound. Such controllers will be called suboptimal controllers. The suboptimality conditions are obtained in terms of a Riccati equation which satisfies an operator inequality. Finally, we give a lower bound for the supremal achievable stability radius via the Riccati equation.

%B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI), 21-22 Sept %C Tebessa, Algeria %P 1-5 %8 Sep. %G eng %U 10.1109/ICRAMI52622.2021.9585930 %R 10.1109/ICRAMI52622.2021.9585930 %0 Conference Paper %B 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %D 2021 %T Robust Stabilization of Infinite Dimensional Systems Subjected to Stochastic and Deterministic Perturbations %A Amira, Kameche %A MAISSSA, KADA %X

This paper deals with the robust stabilization of infinite dimensional systems subjected to stochastic and deterministic perturbations. First, we give conditions providing the stability of the parameterized system. Then, we investigate the maximization of the stability radius by state feedback. We establish conditions for the existence of suboptimal controllers. Using these conditions we characterize the supreme achievable stability radius via an infinite dimensional Riccati equation.

%B 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %C Tebessa, Algeria %P 1-4 %G eng %U 10.1109/ICRAMI52622.2021.9585901 %R 10.1109/ICRAMI52622.2021.9585901 %0 Conference Paper %B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %D 2021 %T Stacked Auto-Encoders Based Biometrics Recognition %A Boussaad, Leïla %A BOUCETTA, ALDJIA %X

Recently deep learning has shown significant achievement in the performance of many tasks, like natural language processing, image and speech recognition. Also, this improvement concerns multiple biometrics recognition systems. In this work, we focus on biometrics recognition, we present a stacked auto-encoder-based approach for various biometrics recognition, including Iris, Ear, palm-print, and face recognition. The proposed method allows training a neural network that includes two hidden layers for biometrics tasks. It runs in two steps, in the first one, each layer is trained individually in an unsupervised manner by auto-encoders, then the layers are stacked and trained in a supervised way. Experimental results on images, obtained from publicly available biometrics databases clearly demonstrate the benefit of using stacked auto-encoders as feature extraction and dimension reduction tools for biometrics recognition, as significant high accuracy rates are obtained over the four databases.

%B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %C Tebessa, Algeria %P 1-6 %8 Sep. %G eng %U 10.1109/ICRAMI52622.2021.9585968 %R 10.1109/ICRAMI52622.2021.9585968 %0 Conference Paper %B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %D 2021 %T Simulation Of The Structure FSS Using The WCIP Method For Dual Polarization Applications %A Mekaoussi, Abdelmalik %A Titaouine, Mohammed %X

In this work, we studied an L-shaped frequency selective surface (FSS) by a method called Wave Concept Iterative Procedure (WCIP), this method developed from the Modal Fast Transformation (FMT) is based on the cross- formulation. wave and the solution obtained by an iterative procedure does not use the matrix to ensure convergence and the procedure is stopped when it arrives at convergence, for this geometry the results of a single resonance obtained by the WCIP method have a resonant frequency of 5.35 GHz with a band bandwidth of 2.3 GHz, when the structure is excited in the X direction, a frequency at 10.35 GHz with a bandwidth of 0.44 GHz when the structure is excited in the Y direction. The simulation of the results obtained by the WCIP method is compared with the results of the software HFSS 13.0 (High Frequency Structure Simulator), we find a good agreement.

%B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %C Tebessa, Algeria %P 1-6 %8 Sep. %G eng %U 10.1109/ICRAMI52622.2021.9585971 %R 10.1109/ICRAMI52622.2021.9585971 %0 Thesis %B Génie Industriel %D 2021 %T Amélioration du processus de capitalisation et de partage des connaissances pour la maximisation de la valeur d’un système de production %A Mawloud, Titah %X

Dans cette thèse, nous nous sommes intéressés à un modèle de gestion des connaissances des entreprises industrielles. Certaines tâches manufacturières impliquent un niveau élevé de connaissance tacite des opérateurs qualifiés. L'industrie a besoin des méthodes fiables pour la capture et l'analyse de ces connaissances tacites afin qu'elles puissent être partagées et sans aucune perte. Nous proposons, un modèle de gestion contenant deux processus de gestion, le premier processus est la capitalisation des connaissances basée sur une tâche industrielle. Nous avons utilisé une combinaison de deux méthodologies : une méthodologie d’ingénierie de connaissances CommonKADS et une méthodologie d’élicitation des connaissances MACTAK. Dans la phase de modélisation, nous avons utilisé deux différentes techniques de modélisation, une modélisation basée sur les connaissances d’expert et la deuxième une représentation ontologique. Ce modèle facilite la capture des connaissances d’experts et transforme les connaissances tacites en explicites avec une maximisation des règles de production. Le deuxième processus concerne le partage des connaissances à base d’une ontologie des Tâches Manufacturières MATO en identifiant un ensemble des concepts de fabrication et leurs relations, cette ontologie proposée facilite le partage des connaissances entre les tâches de fabrication et aide à partager et à réutiliser les connaissances durant l'exécution des tâches. Ensuite, une application proposée pour le diagnostic de système d’alarme dans une centrale thermique a été présentée pour démontrer l’importance et l’apport de l’ontologie.

%B Génie Industriel %8 2017 %G eng %U http://eprints.univ-batna2.dz/1944/ %0 Book Section %B Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement %D 2021 %T 3D Printing Analysis by Powder Bed Printer (PBP) of a Thoracic Aorta Under Simufact Additive %A Ameddah, Hacene %A Mazouz, Hammoudi %X In recent decades, vascular surgery has seen the arrival of endovascular techniques for the treatment of vascular diseases such as aortic diseases (aneurysms, dissections, and atherosclerosis). The 3D printing process by addition of material gives an effector of choice to the digital chain, opening the way to the manufacture of shapes and complex geometries, impossible to achieve before with conventional methods. This chapter focuses on the bio-design study of the thoracic aorta in adults. A bio-design protocol was established based on medical imaging, extraction of the shape, and finally, the 3D modeling of the aorta; secondly, a bio-printing method based on 3D printing that could serve as regenerative medicine has been proposed. A simulation of the bio-printing process was carried out under the software Simufact Additive whose purpose is to predict the distortion and residual stress of the printed model. The binder injection printing technique in a Powder Bed Printer (PBP) bed is used. The results obtained are very acceptable compared with the results of the error elements found. %B Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement %I IGI Global %P 774-785 %8 2021 %G eng %0 Journal Article %J Engineering & Electromechanics %D 2021 %T Adaptive maximum power point tracking using neural networks for a photovoltaic systems according grid %A Sahraoui, H %A Mellah, H %A Drid, S %A Chrifi-Alaoui, L %X

Introduction. This article deals with the optimization of the energy conversion of a grid-connected photovoltaic system. The novelty is to develop an intelligent maximum power point tracking technique using artificial neural network algorithms. Purpose. Intelligent maximum power point tracking technique is developed in order to improve the photovoltaic system performances under the variations of the temperature and irradiation. Methods. This work is to calculate and follow the maximum power point for a photovoltaic system operating according to the artificial intelligence mechanism is and the latter is used an adaptive modified perturbation and observation maximum power point tracking algorithm based on function sign to generate an specify duty cycle applied to DC-DC converter, where we use the feed forward artificial neural network type trained by Levenberg-Marquardt backpropagation. Results. The photovoltaic system that we chose to simulate and apply this intelligent technique on it is a stand-alone photovoltaic system. According to the results obtained from simulation of the photovoltaic system using adaptive modified perturbation and observation artificial neural network the efficiency and the quality of the production of energy from photovoltaic is increased. Practical value. The proposed algorithm is validated by a dSPACE DS1104 for different operating conditions. All practice results confirm the effectiveness of our proposed algorithm.

%B Engineering & Electromechanics %V 5 %P 57-66 %8 2021 %G eng %U https://arxiv.org/abs/2110.13246 %0 Journal Article %J The Eurasia Proceedings of Science Technology Engineering and MathematicsThe Eurasia Proceedings of Science Technology Engineering and Mathematics %D 2021 %T An Adaptive Sigmoidal Activation Function for Training Feed Forward Neural Network Equalizer %A ZERDOUMI, Zohra %A BENMEDDOUR, Fadila %A ABDOU, Latifa %A Benatia, Djamel %X

Feed for word neural networks (FFNN) have attracted a great attention, in digital communication area. Especially they are investigated as nonlinear equalizers at the receiver, to mitigate channel distortions and additive noise. The major drawback of the FFNN is their extensive training. We present a new approach to enhance their training efficiency by adapting the activation function. Adapting procedure for activation function extensively increases the flexibility and the nonlinear approximation capability of FFNN. Consequently, the learning process presents better performances, offers more flexibility and enhances nonlinear capability of NN structure thus the final state kept away from undesired saturation regions. The effectiveness of the proposed method is demonstrated through different challenging channel models, it performs quite well for nonlinear channels which are severe and hard to equalize. The performance is measured throughout, convergence properties, minimum bit error achieved. The proposed algorithm was found to converge rapidly, and accomplish the minimum steady state value. All simulation shows that the proposed method improves significantly the training efficiency of FFNN based equalizer compared to the standard training one.

%B The Eurasia Proceedings of Science Technology Engineering and MathematicsThe Eurasia Proceedings of Science Technology Engineering and Mathematics %V 14 %P 1-7 %8 2021 %G eng %U http://www.epstem.net/en/download/article-file/2163762 %0 Journal Article %J Journal of e-Learning and Knowledge SocietyJournal of e-Learning and Knowledge Society %D 2021 %T Adoption of social robots as pedagogical aids for efficient learning of second language vocabulary to children %A Chafik Arar %A Abdelouahab BELAZOUI %A Abdelmoutia Telli %X

In this digital age embracing robotics across various areas of life, especially intellectual ones, have reaped great benefits owing to this modern technology. Therefore, the learning field has not remained unchanged given current evolutions as the schooling conditions have been improved through these smart devices. However, teachers still face some difficulties when choosing pedagogical methods and means for effective language learning for children. Thus, this paper aims to measure the effectiveness of social robots in facilitating children’s learning of a second language (L2). For this purpose, the term L2 learning and its subordinate concepts have been distinguished, and then the different methods of language learning were discussed. The latest research regarding social robots in the educational context was also discussed when reviewing the literature. An experimental study conducted on a sample of children illustrated that the use of the social robot significantly helped them in the L2 learning regarding the assimilation fast, retention, and correct pronunciation of its vocabulary. Finally, this study concludes that the social robot would be a good solution and recommends their widespread use in education given its role in improving the schooling conditions of children.

%B Journal of e-Learning and Knowledge SocietyJournal of e-Learning and Knowledge Society %V 17 %P 119-126 %8 2021 %@ 1971-8829 %G eng %U https://www.je-lks.org/ojs/index.php/Je-LKS_EN/article/view/1135551#:~:text=An%20experimental%20study%20conducted%20on,correct%20pronunciation%20of%20its%20vocabulary. %N 3 %0 Journal Article %J Journal of the Hellenic Veterinary Medical SocietyJournal of the Hellenic Veterinary Medical Society %D 2021 %T Age related changes in testicular histomorphometry and spermatogenic activity of bulls %A Belkhiri, Y %A Benbia, S %A Djaout, A %X

The aim of the present study was to evaluate age related changes in testicular histomorphometry and spermatogenic activity of bulls during their sexual development. A total of 36 bulls were selected and divided into four groups (n=9 in each) according to their age. Bulls included in Groups I, II, III and IV were 10, 12, 14 and 16 months old respectively. Left testes of bulls were subjected to histomorphometry after slaughter. Statistical analysis revealed that the secondary spermatocytes, round and elongated spermatids increased significantly (P˂0.05) with the age of bulls. Likewise, both sertoli and leydig cell numbers increased significantly (P˂0.05) with the age of bulls. However, the number of spermatogonia and primary spermatocytes did not change (P>0.05) due to age. The mean tubular diameter increased from 200.70±5.45 μm (10 months of age) to 227.30±9.16 μm (16 months of age) and the total volume of seminiferous tubule per testis from 69.63±1.50 % (10 months of age) to 84.64±2.53 % (16 months of age). A positive linear relationship (P<0.05) was found between meiotic index (Y) and the age (X, in month), which was characterized by the equation 0.048X+3.135 and a coefficient of correlation (R) of 0.396. The correlation between age and sertoli cell efficiency was 0.482 with a regression equation Y= 0.141X+7.696. It is concluded that histomorphometric parameters of the bulls’ testes and spermatogenic activity are correlated with the age, so these parameters provide a reliable tool for the assessment of the reproductive state and sperm production capacity of a bull in a breeding program.

%B Journal of the Hellenic Veterinary Medical SocietyJournal of the Hellenic Veterinary Medical Society %V 72 %P 3139-3146 %8 2021 %@ 2585-3724 %G eng %U https://www.scilit.net/publications/987fef7ca5a679e98fc33875d4603a0d %N 3 %0 Journal Article %D 2021 %T Analyse Numérique du Comportement d’une Conduite sur un Versant Non-Saturé Instable de Grande Hauteur. Cas de la Conduite AEP de Ain Tinn-Mila.(Numerical Analysis of Pipeline Behavior on High Unstable Unsaturated Slope. Case of AEP pipe of Ain Tinn-Mi %A Bouatia, Mohammed %8 2021 %G eng %0 Journal Article %J Jordan Journal of Civil EngineeringJordan Journal of Civil Engineering %D 2021 %T Analysis of the post-mainshock behavior of reinforced concrete bridge pier columns subjected to aftershocks %A Youb, Youcef %A Kadid, Abdelkrim %A Lombarkia, Hanane %B Jordan Journal of Civil EngineeringJordan Journal of Civil Engineering %V 15 %8 2021 %@ 1993-0461 %G eng %0 Journal Article %J Journal of Solid Mechanics %D 2021 %T Anisotropic and Isotropic Elasticity Applied for the Study of Elastic Fields Generated by Interfacial Dislocations in a Heterostructure of InAs/(001)GaAs Semiconductors %A Makhloufi, R %A Boussaha, A %A Benbouta, R %A Baroura, L %X

This work is a study of the elastic fields’ effect (stresses and displacements) caused by dislocations networks at a heterostructure interface of a InAs / GaAs semiconductors thin system in the cases of isotropic and anisotropic elasticity. The numerical study of this type of heterostructure aims to predict the behavior of the interface with respect to these elastic fields satisfying the boundary conditions. The method used is based on a development in Fourier series. The deformation near the dislocation is greater than the other locations far from the dislocation.     

%B Journal of Solid Mechanics %V 13 %P 503-512 %8 2021 %@ 2008-3505 %G eng %U https://jsm.arak.iau.ir/article_682342.html %0 Journal Article %J World’s Veterinary Journal %D 2021 %T Antibiotic Resistance Profile of Escherichia coli Isolated from Bovine Subclinical Mastitis of Dairy Farms in Algeria from 2017 to 2019 %A Ghallache, Loubna %A Mohamed-Cherif, Abdellah %A China, Bernard %A Mebkhout, Faiza %A Boilattabi, Nesrine %A Bouchemal, Alaoua %A Rebia, Ahmed %A Ammar Ayachi %A Khelef, Djemel %A Miroud, Kamel %X

Mastitis in cows is a major problem in dairy farms leading to a decrease in the quantity and quality of milk. The aim of the present study was to examine the association between the presence of Escherichia coli (E. coli) in milk and the subclinical mastitis, and to characterize the antibiotic resistance profiles of the isolated E. coli. In the current study, a total of 360 cow raw milk samples from three dairy farms of the region of Algiers were analyzed. The analysis period lasted from Spring 2017 to Winter 2019. The California Mastitis Test (CMT) was applied to detect subclinical mastitis. The E. coli strains were isolated from milk using conventional bacteriological methods. The antibiotic resistance profile of the isolated E. coli strains to 12 different antibiotics was tested using the disk diffusion method. On β-lactamase-producing strains, a double diffusion test was applied to identify the Extendedspectrum β-lactamase (ESBL) phenotype. Finally, the ctXx-M genes were amplified by PCR. Two-thirds (66.4%) of the milk samples were positive for the CMT test. A total of 97 E. coli strains were isolated from the milk samples, their resistance to antibiotics was tested, and 3.1% of the strains were resistant to trimethoprim-sulfamethoxazole, 6.2% to chloramphenicol, 12.3% to gentamicin, 13.4% to colistin, 23.3% to amoxicillin/clavulanate, 31.9% to kanamycin, 39.2% to enrofloxacin, 51.5% to cefotaxime, 52% to tetracycline, 57.7% to ampicillin, 74.3% to nalidixic acid, and 75.3% to amoxicillin. Furthermore, most of the E. coli strains (92.8%) were resistant to more than one antibiotic with a Multiple Antibiotic Resistance index ranging from 0 to 0.8. The 50 strains resistant to cefotaxime were analyzed for an ESBL phenotype. 39 of them (78%) were positive to the double-disk synergy test. Among the 39 ESBL positive strains, 27 (69.2%) were confirmed for the presence of a CTX-M gene by PCR. The present study showed that multiple drug-resistant E. coli, including ESBL-carriers, were frequently isolated from the milk of dairy cows in Algeria. The results underlined that the use of antibiotics on farms must be reasoned to avoid the spread of resistant strains in animals and human populations.

%B World’s Veterinary Journal %V 11 %P 402-415 %8 2021 %@ 2322-4568 %G eng %U https://wvj.science-line.com/attachments/article/66/WVJ%2011(3),%20402-415,%20September%2025,%202021.pdf %N 3 %0 Journal Article %J Natural Product Research %D 2021 %T Anti-inflammatory and hemostatic effects of Linaria reflexa Desf %A Cheriet, Thamere %A HANFER, Mourad %A Mancini, Ines %A Benelhadj, Samiha %A Laouas, Nour Essabah %A Ameddah, Souad %A Menad, Ahmed %A Seghiri, Ramdane %X

The work presented here was aimed to investigate the in vivo anti-inflammatory and in vitro hemostatic activities of Linaria reflexa extract and to establish the relationship between its bioactivity and chemical composition. Twenty-three secondary metabolites were identified, most of them are good anti-inflammatory agents, in line with data by carrageenin-induced rat paw edema assays of the n-butanol extract showing high anti-inflammatory inhibition (63.90%) of edema swelling in the rat paw at the dose 200 mg/kg after 4 h. Furthermore, both extent of inflammatory response and tissue injury were prevented keeping the levels of rate myeloperoxidase (60.16%) and of malondialdehyde, which is the final product of lipid peroxidation generated by free radicals (58.58%). The same extract showed also a remarkable hemostatic effect established by measuring the coagulation time of decalcified plasma (45 s), related to its flavonoid glycosides content.

%B Natural Product Research %V 35 %P 2778-2783 %8 2021 %@ 1478-6419 %G eng %U https://pubmed.ncbi.nlm.nih.gov/31507213/ %N 16 %0 Journal Article %J PSM Biol. Res.PSM Biol. Res. %D 2021 %T Antioxidant and Anti-inflammatory Activities of Methanolic Extract of Marrubium deserti de Noé Leaves %A Ghedadba, Nabil %A Hambaba, Leila %A Hachemi, Messaoud %A Bensaad, Mohamed Sabri %X

The objective of the present study was to determine the pharmacological properties of the methanolic (MeOH) extract of Marrubium deserti leaves. For this purpose, antioxidant activity was carried out by DPPH and Ferric reducing power (FRAP) assays respectivelywhile In vivoanti-inflammatory activity was tested by carrageenan-induced paw edema model. The Phytochemical investigation revealed the presence of several biocompounds, and total phenolic and flavonoidcontents were also determined to support our results and revealed a high proportions of polyphenols (184 ± 0.78 mg GAE/g extract) and flavonoids (28.48 ± 0.40 mg QE/g extract). The MeOH extract demonstrated great pharmacological properties with a dose-effect relationship. Thus, a great antioxidant effect was recorded in both DPPH and FRAP assayswith a respective IC50 of (15.1 μg/ml) and (80.01 ± 1 μg EAA/g of extract) and were considered significant (P<0.05) when compared to respective standards. On the other hand, anti-inflammatory results suggested that the plant extract could effectively oppose the inflammation caused by carrageenan at the dose of 200 mg/kg with significant decrease (84.1 %) of inflammation. These encouraging results suggest that our plant could be a good candidate to treat more effectively pathologies related to oxidative stress and inflammation.

%B PSM Biol. Res.PSM Biol. Res. %V 6 %P 56-65 %8 2021 %G eng %U https://psmjournals.org/index.php/biolres/article/view/560 %N 3 %0 Journal Article %J Archives of physiology and biochemistryArchives of physiology and biochemistry %D 2021 %T Artemisia herba-alba aqueous extract improves insulin sensitivity and hepatic steatosis in rodent model of fructose-induced metabolic syndrome %A Réggami, Yassine %A Benkhaled, Abderrahim %A Boudjelal, Amel %A Berredjem, Hajira %A Amamra, Amani %A Benyettou, Halima %A Larabi, Nadia %A Senator, Abderrahmane %A Siracusa, Laura %A Ruberto, Giuseppe %B Archives of physiology and biochemistryArchives of physiology and biochemistry %V 127 %P 541-550 %8 2021 %@ 1381-3455 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/13813455.2019.1659825 %0 Journal Article %J Journal of Adhesion Science and Technology %D 2021 %T The assessment of strips arrangement effect on the performance of strengthened reinforced concrete beams %A Boutlikht, Mourad %A Lahbari, Noureddine %A Hebbache, Kamel %A Tabchouche, Seifeddine %X

This experimental study aims to investigate the effects of the strengthening arrangement on the behavior and the performance of strengthened beams, according to the Near-Surface Mounted (NSM) and the Externally Bonded Reinforcement (EBR) techniques. In total five rectangular beams including a Control Beam (CB) and four Carbon Fiber Reinforced Polymer (CFRP) strengthened beams with NSM and EBR techniques. The beams were tested to failure in Four-Point Bending (FPB) test. The experimental program comprises two beams strengthened by one and two strips according to the NSM technique. Two other beams were strengthened by the same configuration with the EBR, whereas the last beam was un-strengthened and considered as the CB. The responses of control and strengthened beams were compared. The efficiency and the effectiveness of different CFRP configurations were evaluated. The test results showed that the flexural load capacity, the deflection, the ductility and the stiffness of strengthened beams increased with increasing of plates distribution. This increase was more significant for the EBR technique than the NSM. This paper also highlights the beams failure modes due to the different configurations of strengthening. The obtained results revealed that the crack patterns were affected by the arrangement of the strips.

%B Journal of Adhesion Science and Technology %V 36 %P 1-18 %8 2021 %@ 0169-4243 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/01694243.2021.1977475 %N 14 %0 Journal Article %J Transportation Infrastructure Geotechnology %D 2021 %T Author Correction: Numerical Evaluation of Soil-Pile-Structure Interaction Effects in Nonlinear Analysis of Seismic Fragility Curves %A Guettafi, Nesrine %A Yahiaoui, Djarir %A Abbeche, Khelifa %A Tayeb Bouzid %X

Seismic fragility curves are considered an effective tool for the evaluation of the behavior of interaction of the soil-pile-structure (ISPS) subjected to earthquake loading. In this research, in order to better understand the ISPS effect, a nonlinear static analysis is applied with a variation of the vertical load, the diameter of pile, and finally the longitudinal steel ratio of the pile in different types of sand (loose, medium, dense) to obtain the capacity curves of each parameter for elaborating the curves of fragility. After a comparison of fragility curves of these parameters, it appears that the effect of the ISPS system is advantageous with respect to the vertical axial load and the diameter of pile, while the longitudinal ratio of the pile depending on the ductility and the lateral resistance of the ISPS system. The proposed equation is intended to help engineers in the design and performance of the soil-pile-structure interaction. The results of this equation provided a convergence with the results of the fragility curves.

%B Transportation Infrastructure Geotechnology %V 9 %P 1-1 %8 2021 %@ 2196-7210 %G eng %U https://link.springer.com/article/10.1007/s40515-021-00189-0 %0 Journal Article %J Pattern recognitionPattern Recognition %D 2021 %T Automatic COVID-19 lung infected region segmentation and measurement using CT-scans images %A OULEFKI, ADEL %A Agaian, Sos %A Trongtirakul, Thaweesak %A Laouar, Azzeddine Kassah %X

History shows that the infectious disease (COVID-19) can stun the world quickly, causing massive losses to health, resulting in a profound impact on the lives of billions of people, from both a safety and an economic perspective, for controlling the COVID-19 pandemic. The best strategy is to provide early intervention to stop the spread of the disease. In general, Computer Tomography (CT) is used to detect tumors in pneumonia, lungs, tuberculosis, emphysema, or other pleura (the membrane covering the lungs) diseases. Disadvantages of CT imaging system are: inferior soft tissue contrast compared to MRI as it is X-ray-based Radiation exposure. Lung CT image segmentation is a necessary initial step for lung image analysis. The main challenges of segmentation algorithms exaggerated due to intensity in-homogeneity, presence of artifacts, and closeness in the gray level of different soft tissue. The goal of this paper is to design and evaluate an automatic tool for automatic COVID-19 Lung Infection segmentation and measurement using chest CT images. The extensive computer simulations show better efficiency and flexibility of this end-to-end learning approach on CT image segmentation with image enhancement comparing to the state of the art segmentation approaches, namely GraphCut, Medical Image Segmentation (MIS), and Watershed. Experiments performed on COVID-CT-Dataset containing (275) CT scans that are positive for COVID-19 and new data acquired from the EL-BAYANE center for Radiology and Medical Imaging. The means of statistical measures obtained using the accuracy, sensitivity, F-measure, precision, MCC, Dice, Jacquard, and specificity are 0.98, 0.73, 0.71, 0.73, 0.71, 0.71, 0.57, 0.99 respectively; which is better than methods mentioned above. The achieved results prove that the proposed approach is more robust, accurate, and straightforward.

%B Pattern recognitionPattern Recognition %V 114 %P 107747 %8 2021 %@ 0031-3203 %G eng %U https://www.sciencedirect.com/science/article/pii/S0031320320305501 %0 Journal Article %J IEEE Access %D 2021 %T Auto-NAHL: A neural network approach for condition-based maintenance of complex industrial systems %A Berghout, Tarek %A Benbouzid, Mohamed %A Muyeen, SM %A Bentrcia, Toufik %A Mouss, Leïla-Hayet %X

Nowadays, machine learning has emerged as a promising alternative for condition monitoring of industrial processes, making it indispensable for maintenance planning. Such a learning model is able to assess health states in real time provided that both training and testing samples are complete and have the same probability distribution. However, it is rare and difficult in practical applications to meet these requirements due to the continuous change in working conditions. Besides, conventional hyperparameters tuning via grid search or manual tuning requires a lot of human intervention and becomes inflexible for users. Two objectives are targeted in this work. In an attempt to remedy the data distribution mismatch issue, we firstly introduce a feature extraction and selection approach built upon correlation analysis and dimensionality reduction. Secondly, to diminish human intervention burdens, we propose an Automatic artificial Neural network with an Augmented Hidden Layer (Auto-NAHL) for the classification of health states. Within the designed network, it is worthy to mention that the novelty of the implemented neural architecture is attributed to the new multiple feature mappings of the inputs, where such configuration allows the hidden layer to learn multiple representations from several random linear mappings and produce a single final efficient representation. Hyperparameters tuning including the network architecture, is fully automated by incorporating Particle Swarm Optimization (PSO) technique. The designed learning process is evaluated on a complex industrial plant as well as various classification problems. Based on the obtained results, it can be claimed that our proposal yields better response to new hidden representations by obtaining a higher approximation compared to some previous works.

%B IEEE Access %V 9 %P 152829-152840 %8 2021 %@ 2169-3536 %G eng %U https://ieeexplore.ieee.org/abstract/document/9610082 %0 Conference Proceedings %B 2021 10th International Conference on Renewable Energy Research and Application (ICRERA) %D 2021 %T Backstepping Approach Based on Direct Power Control of a DFIG in WECS %A Mazouz, Farida %A Sebti Belkacem %A Ghoulemallah Boukhalfa %A Colak, Ilhami %X

This work deals with the study and performance improvement of the direct power control of DFIG based on backstepping Controller. Direct power control using hysteresis regulator has certain disadvantages such as significant powers ripples, variable switching frequency and sensitivity to parametric variations. To surmount these disadvantages, we present a robust controller such as the backstepping-based direct power control using SVM. A comparison study was made between the classic direct power control and the backstepping controller. The simulation results show that the backstepping controller provides good results reduces powers ripples.

%B 2021 10th International Conference on Renewable Energy Research and Application (ICRERA) %I IEEE %C Istanbul, Turkey %P 198-202 %8 2021 %@ 1-66544-524-6 %G eng %U https://ieeexplore.ieee.org/abstract/document/9598599 %0 Journal Article %J Vietnam Journal of Computer ScienceVietnam Journal of Computer Science %D 2021 %T BBO-Based State Optimization for PMSM Machines %A Lakehal, Hanane %A Ghanai, Mouna %A Chafaa, Kheireddine %X

In this investigation, state vector estimation of the Permanent Magnet Synchronous machine (PMSM) using the nonlinear Kalman estimator (Extended Kalman Filter) is considered. The considered states are the speed of the rotor, its angular position, the torque of the load and the resistance of the stator. Since the extended Kalman filter contains some free parameters, it will be necessary to optimize them in order to obtain a better efficiency. The free parameters of EKF are the covariance matrices of state noise and measurement noise. These later will be auto adjusted by a new metaheuristic optimization technique called Biogeographical-based optimization (BBO). As far as we know, BBO–EKF optimization for PMSM state was not treated in the literature. The suggested estimation tuning approach is demonstrated using a computer simulation of a PMSM. Simulated experimentations show the robustness and effectiveness of the proposed scheme. In addition, a detailed comparative study with conventional methods like Particle Swarm Optimization and Genetic Algorithms will be given.

%B Vietnam Journal of Computer ScienceVietnam Journal of Computer Science %V 9 %8 2021 %@ 2196-8888 %G eng %U https://www.worldscientific.com/doi/10.1142/S2196888822500026 %N 1 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Bearing Capacity Factor of Circular Footings on Two-layered Clay Soils %A Benmoussa, Samir %A Benmebarek, Sadok %A Benmebarek, Naima %X

Geotechnical engineers often deal with layered foundation soils. In this case, the soil bearing capacity assessment using the conventional bearing capacity theory based on the upper layer properties introduces significant inaccuracies if the top layer thickness is comparable to the rigid footing width placed on the soil surface. Under undrained conditions the cohesion increases almost linearly with depth. A few theoretical studies have been proposed in the literature in order to incorporate the cohesion variation with depth in the computation of the ultimate bearing capacity of the strip and circular footings. Rigorous solutions to the problem of circular footings resting on layered clays with linear increase of cohesion do not appear to exist. In this paper, numerical computations using FLAC code are carried out to assess the vertical bearing capacity beneath rough rigid circular footing resting on two-layered clays of both homogeneous and linearly increasing shear strength profiles. The bearing capacity calculation results which depend on the top layer thickness, the two-layered clays strength ratio and the cohesion increase rates with depth are presented in both tables and graphs, and compared with previously published results available in the literature. The critical depth for circular footing is found significantly less than for strip footing.

%B Civil Engineering Journal %V 7 %P 775-785 %8 2021 %@ 2476-3055 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2773 %N 5 %0 Journal Article %J World Journal of Engineering %D 2021 %T Bearing capacity of a square shallow foundation on swelling soil using a numerical approach %A Khennouf, Abdelaziz %A Baheddi, Mohamed %X

Purpose

The estimation of bearing capacity for shallow foundations in swelling soil is an important and complex context. The complexity is due to the unsaturated swelling soil related to the drying and humidification environment. Hence, a serious study is needed to evaluate the effect of swelling potential soil on the foundation bearing capacity. The purpose of this paper is to analyze the bearing capacity of a rough square foundation founded on a homogeneous swelling soil mass, subjected to vertical loads.

Design/methodology/approach

A proposed numerical model based on the simulation of the swelling pressure in the initial state, followed by an elastoplastic behavior model may be used to calculate the foundation bearing capacity. The analyses were carried out using the finite-difference software (FLAC 3 D) with an elastic perfectly plastic Mohr–Coulomb constitutive model. Moreover, the numerical results obtained are compared with the analytical solutions proposed in the literature.

Findings

The numerical results were in good agreement with the analytical solutions proposed in the literature. Also, reasonable capacity and performance of the proposed numerical model.

Originality/value

The proposed numerical model is capable to predict the bearing capacity of the homogeneous swelling soil mass loaded by a shallow foundation. Also, it will be of great use for geotechnical engineers and researchers in the field.

%B World Journal of Engineering %8 2021 %@ 1708-5284 %G eng %U https://www.emerald.com/insight/content/doi/10.1108/WJE-01-2021-0005/full/html?skipTracking=true %0 Journal Article %J International Journal of Industrial and Systems Engineering %D 2021 %T Capacity planning with outsourcing opportunities under reliability and maintenance constraints %A Haoues, Mohammed %A Dahane, Mohammed %A Mouss, Kinza-Nadia %X

This paper investigates capacity planning with outsourcing under reliability-maintenance constraints. The considered supply-chain consists of a single-manufacturer and multiple-subcontractors. The manufacturer's company is composed of a single unit subject to random failures. Corrective maintenance is endorsed when failures occur, and preventive maintenance can be carried out to reduce the degradation. The high in-house costs and the incapacity motivate the manufacturer outsourcing to independent subcontractors. In addition, based on the principle of comparative advantage, the manufacturer balances between in-house capacities and outsourcing services, which minimises the total cost. The aim is to propose a new policy based on the combination between integrated-maintenance and outsourcing policies. A mathematical model and an optimisation procedure have been developed in order to determine the best in-house production-maintenance and outsourcing plans for the manufacturer while minimising the total cost. In order to show the applicability of our approach, we conduct experimentations to study the management insights.

%B International Journal of Industrial and Systems Engineering %V 37 %P 382-409 %8 2021 %@ 1748-5037 %G eng %U https://ideas.repec.org/a/ids/ijisen/v37y2021i3p382-409.html %N 3 %0 Journal Article %J Journal of Global Antimicrobial Resistance %D 2021 %T Carbapenemase-producing Gram-negative bacteria in aquatic environments: A review %A Zineb Cherak %A Lotfi Loucif %A Moussi, Abdelhamid %A Jean-Marc Rolain %X

Antibiotic resistance is one of the greatest public-health challenges worldwide, especially with regard to Gram-negative bacteria (GNB). Carbapenems are the β-lactam antibiotics of choice with the broadest spectrum of activity and, in many cases, are the last-resort treatment for several bacterial infections. Carbapenemase-encoding genes, mainly carried by mobile genetic elements, are the main mechanism of resistance against carbapenems in GNB. These enzymes exhibit a versatile hydrolytic capacity and confer resistance to most β-lactam antibiotics. After being considered a clinical issue, increasing attention is being giving to the dissemination of such resistance mechanisms in the environment and especially through water. Aquatic environments are among the most significant microbial habitats on our planet, known as a favourable medium for antibiotic gene transfer, and they play a crucial role in the huge spread of drug resistance in the environment and the community. In this review, we present current knowledge regarding the spread of carbapenemase-producing isolates in different aquatic environments, which may help the implementation of control and prevention strategies against the spread of such dangerous resistant agents in the environment.

%B Journal of Global Antimicrobial Resistance %V 25 %P 287-309 %8 2021 %@ 2213-7165 %G eng %U https://www.sciencedirect.com/science/article/pii/S2213716521000928 %0 Journal Article %J Journal of Mechanical Engineering and Sciences %D 2021 %T CFD analysis of unsteady and anisotropic turbulent flow in a circular-sectioned 90° bend pipe with and without ribs: A comparative computational study %A Chiremsel, Rachid %A Fourar, Ali %A Massouh, Fawaz %A Chiremsel, Zakarya %X

The Reynolds–averaged Navier–Stokes (RANS) equations were solved along with Reynolds stress model (RSM), to study the fully-developed unsteady and anisotropic single-phase turbulent flow in 90° bend pipe with circular cross-section. Two flow configurations are considered the first is without ribs and the second is with ribs attached to solid walls. The number of ribs is 14 ribs regularly placed along the straight pipe. The pitch ratios is 40 and the rib height e (mm) is 10% of the pipe diameter. Both bends have a curvature radius ratio, of 2.0. The solutions of these flows were obtained using the commercial CFD software Fluent at a Dean number range from 5000 to 40000. In order to validate the turbulence model, numerical simulations were compared with the existing experimental data. The results are found in good agreement with the literature data. After validation of the numerical strategy, the axial velocity distribution and the anisotropy of the Reynolds stresses at several downstream longitudinal locations were obtained in order to investigate the hydrodynamic developments of the analyzed flow. The results show that in the ribbed bend pipe, the maximum velocity value is approximately 47% higher than the corresponding upstream value but it is 9% higher in the case of the bend pipe without ribs. It was also found for both cases that the distribution of the mean axial velocity depends faintly on the Dean number. Finally, it can be seen that the analyzed flow in the bend pipe without ribs appears more anisotropic than in bend pipe with ribs.

%B Journal of Mechanical Engineering and Sciences %V 15 %P 7964-7982 %8 2021 %@ 2231-8380 %G eng %U https://journal.ump.edu.my/jmes/article/view/4897 %0 Journal Article %J Journal of Computational Electronics %D 2021 %T Characteristics of HTS inverted circular patches on anisotropic substrates %A BEDRA, Sami %A BENKOUDA, Siham %A BEDRA, Randa %A FORTAKI, Tarek %X

In this study, an efficient full-wave method is developed for characterizing the resonant frequencies, bandwidths, and quality factors of an inverted circular superconducting patch antenna. Our technique is based on the Galerkin procedure in the Hankel transform domain (HTD) combined with the complex resistive boundary conditions. With the use of suitable Green’s functions in the HTD, the analysis is performed for the case where the superconducting circular patches is printed on an anisotropic substrate. The numerical results obtained using this approach are compared with the experimental results. These comparisons were very good, which proves the correctness and the validity of the method. It is found that the optical properties combined with optimally-chosen structural parameters of anisotropic materials can maintain control of the resonant frequency and exhibit wider bandwidth characteristics.

%B Journal of Computational Electronics %V 20 %P 892-899 %8 2021 %@ 1572-8137 %G eng %U https://link.springer.com/article/10.1007/s10825-020-01596-1 %0 Journal Article %J European Journal of Environmental and Civil Engineering %D 2021 %T Characterization and modelling of the rheological behaviour of blended cements based on mineral additions %A Bouglada, Mohammed Salah %A Naceri, Abdelghani %A Baheddi, Mohamed %A Pereira-de-Oliveira, Luiz %X

This paper presents an experimental study to evaluate the effect of local mineral additions (pozzolan, slag and limestone) on the rheological behaviour of based cement binder’s pastes. The binary, ternary and quaternary binder pastes were prepared with the partial clinker cement replacement limited up to 20%, according with type CEM II specifications. The cements were characterized by their geometric shapes, the reactivity and the chemical composition. An experimental design plan was used to modelling the rheological behaviour of pastes. The relatives yield stress and plastic viscosity of binder’s pastes, with normal consistency, were determined. The results showed that all the tested compositions with additions follow the same rheological behaviour law according to the Bingham model. The binder pastes rheological parameters (yield stress and viscosity) are affected by mineral additions. The highest values of the rheological parameters were measured in binary and ternary cements with limestone and pozzolan. On the other hand, the lower viscosity among the tested pastes was obtained with slag addition. The statistical approach allowed us to obtain a satisfactory modelling of viscosity and yield stress with a coefficient of determination R2 = 0.91 and 0.92, respectively and a satisfactory correlation between the viscosity and the water/binder ratio (W/B) for a normal consistency with a coefficient of determination R2 = 0.91.

%B European Journal of Environmental and Civil Engineering %V 25 %P 655-672 %8 2021 %@ 1964-8189 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/19648189.2018.1539675 %0 Journal Article %J Natural Product Research %D 2021 %T Chemical composition, in vitro antioxidant and antibacterial activities of Centaurea resupinata subsp. dufourii (dostál) greuter %A Bouzghaia, Badra %A Ben Moussa, Mohammed %A Goudjil, Rima %A Harkat, Hassina %A Pale, Patrick %X

The current study focuses on the chemical composition, and evaluation of antioxidant and antibacterial activity of the aerial parts of Centaurea resupinata subsp. dufourii. Using different chromatographic methods nine compounds 1–9 were isolated. The structural identification of isolated compounds was achieved using several spectroscopic methods NMR techniques (1H NMR, 13C NMR, COSY, HSQC, HMBC) and mass spectroscopy (ESI-MS) and by comparison with literature data. The structures of these compounds were identified as nicotiflorin (1), apigetrin (2), chrysoeriol (3), apigenin (4), chrysin (5), daucosterol (6), β-sitosterol (7), taraxastrerol (8) and lupeol (9). The antibacterial and antioxidant activities of ethyl acetate and n-butanol extracts have been evaluated. The antioxidant activity was assessed in vitro using DPPH radical scavenging method, which showed that ethyl acetate extract possessed an interesting antioxidant potential (IC50 = 36.263 ± 0.005 μg/mL).  

%B Natural Product Research %V 35 %P 1-5 %8 01 2021 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/14786419.2020.1715397 %0 Journal Article %J Natural Product Research %D 2021 %T Chemical constituents, in vitro anti-inflammatory, antioxidant and hemostatic activities of the n-butanol extract of Hyacinthoides lingulata (Poir.) Rothm %A HANFER, Mourad %A Benramdane, Zeyneb %A Cheriet, Thamere %A Sarri, Djamel %A Menad, Ahmed %A Mancini, Ines %A Seghiri, Ramdane %A Ameddah, Souad %X

The phytochemical profile obtained from LC-ESI-MS/MS analysis of the n-butanol extract (BEHL) from the North African endemic plant Hyacinthoides lingulata (Poir.) Rothm. brought about the identification of ten glycosylated derivatives of apigenin and luteolin flavones. For the same plant extract, in vitro anti-inflammatory (hypotonic induced hemolysis and heat induced haemolysis assay) and antioxidant (DPPH and β-Carotene) activities were evaluated observing high inflammatory inhibition by protecting membrane stability of erythrocyte in both heat (84.70 ± 0.24%) and hypotonic induced hemolysis (79.45 ± 0.12%). A remarkable hemostatic effect was also established by measuring the coagulation time (15.95 ± 1.05 s at a dose of 1 mg/mL) of decalcified plasma related to its phytochemical content. It is the first report on combined chemical components and biological evaluation of this specific plant.

%B Natural Product Research %V 36 %P 3124-3128 %8 2021 %@ 1478-6419 %G eng %U https://pubmed.ncbi.nlm.nih.gov/34121529/ %N 12 %0 Journal Article %J Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization %D 2021 %T A CNN-based methodology for breast cancer diagnosis using thermal images %A Zuluaga-Gomez, Juan %A Al Masry, Zeina %A Benaggoune, Khaled %A Meraghni, Safa %A Zerhouni, Nourredine %X

A recent study from GLOBOCAN disclosed that during 2018 two million women worldwide had been diagnosed with breast cancer. Currently, mammography, magnetic resonance imaging, ultrasound, and biopsies are the main screening techniques, which require either, expensive devices or personal qualified; but some countries still lack access due to economic, social, or cultural issues. As an alternative diagnosis methodology for breast cancer, this study presents a computer-aided diagnosis system based on convolutional neural networks (CNN) using thermal images. We demonstrate that CNNs are faster, reliable and robust when compared with different techniques. We study the influence of data pre-processing, data augmentation and database size on several CAD models. Among the 57 patients database, our CNN models obtained a higher accuracy (92%) and F1-score (92%) that outperforms several state-of-the-art architectures such as ResNet50, SeResNet50, and Inception. This study exhibits that a CAD system that implements data-augmentation techniques reach identical performance metrics in comparison with a system that uses a bigger database (up to 33%) but without data-augmentation. Finally, this study proposes a computer-aided system for breast cancer diagnosis but also, it stands as baseline research on the influence of data-augmentation and database size for breast cancer diagnosis from thermal images with CNNs

%B Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization %V 9 %P 131-145 %8 2021 %@ 2168-1163 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/21681163.2020.1824685 %0 Journal Article %J Revue Roumaine des Sciences Techniques - Serie Électrotechnique et Énergétique %D 2021 %T COMMANDE A FLUX VIRTUEL ORIENTE DE LA GENERATRICE ASYNCHRONE A CAGE DOUBLE ÉTOILE %A BENDJEDDOU, YACINE %A Abdessemed, Rachid %A MERABET, ELKHEIR %X

Cet article est consacré à l’étude des performances de la génératrice asynchrone à cage double étoile (GASDE) en site isolé. Le système de commande est composé d’une GASDE raccordé à un bus continu et une charge en sortie de deux redresseurs à commande MLI. Une étude comparative entre la technique de commande conventionnelle et la commande adaptée basée sur l’introduction de la SVM-PI-flou et un nouvel estimateur de flux (flux virtuel statorique) afin d’améliorer la qualité d’énergie et d’atténuer les harmoniques du courant.

%B Revue Roumaine des Sciences Techniques - Serie Électrotechnique et Énergétique %V 66 %P 2021 %8 08 2021 %G eng %U https://journal.iem.pub.ro/rrst-ee/article/download/51/35 %N 2 %0 Journal Article %J American Journal of Public Health %D 2021 %T A Comparative Study between ARIMA Model, Holt-Winters–No Seasonal and Fuzzy Time Series for New Cases of COVID-19 in Algeria %A Hadjira, Abdelmounaim %A Salhi, Hicham %A El Hafa, Fadoua %X

Background: Coronavirus disease has become a worldwide threat affecting almost every country in the world. The spread of the virus is likely to continue unabated. The aim of this study is to compare between Autoregressive Integrated Moving Average (ARIMA) model, Fuzzy time series and Holt-Winters – No seasonal for forecasting the COVID-19 new cases in Algeria. 

Methods: Three different models to predict the number of Covid-19 new cases in Algeria were used. The number of new cases of COVID-19 in Algeria during the period from 24th February 2020 to 31th July 2021 was modeled according to ARIMA(4,1,2) model, Five based Fuzzy time series models including the Chen model, Heuristic Huareng model, Singh model, Abbasov-Manedova model and NFTS model, and Holt-Winters – No seasonal. 

Results: The predictive values were obtained from the 1st August 2021 to 31th December 2021. According to a set of criteria (ME, MAE, MSE, RMSE, U), we found that the FTNS model is the most accurate and best generating model for the values of the number of new cases of Covid-19. 

Conclusion: To the best of our knowledge, this is the first comparative study of three models of forecasting of Covid-19 new cases in Algeria. This study shows that ARIMA models with optimally selected covariates are useful tools for monitoring and predicting trends of COVID-19 cases in Algeria. Moreover, this forecast will help the Health authorities to be better prepared to fight the epidemic by engaging their healthcare facilities.

%B American Journal of Public Health %V 9 %P 248-256 %8 2021 %G eng %U http://article.scipublichealthresearch.com/pdf/ajphr-9-6-4.pdf %N 6 %0 Conference Paper %B Communication and Intelligent Systems %D 2021 %T A Comparative Study Between Data-Based Approaches Under Earlier Failure Detection %A Nadjiha, Hadjidj %A Meriem, Benbrahim %A Berghout Tarek %A Hayet, Mouss Leila %X

A comparative study between a set of chosen machine learning tools for direct remaining useful life prediction is presented in this work. The main objective of this study is to select the appropriate prediction tool for health estimation of aircraft engines for future uses. The training algorithms are evaluated using “time-varying” data retrieved from Commercial Modular Aero-Propulsion System Simulation (C-MAPSS) developed by NASA. The training and testing processes of each algorithm are carried out under the same circumstances using the similar initial condition and evaluation sets. The results prove that among the studied training tools, Support vector machine (SVM) achieved the best results.

%B Communication and Intelligent Systems %I Springer %P 235-239 %8 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-981-16-1089-9_20 %0 Conference Paper %B 9th (Online) International Conference on Applied Analysis and Mathematical Modeling (ICAAMM21) June 11-13, 2021, Istanbul-Turkey %D 2021 %T Comparative Study of Different Fault-Tolerant Control Strategies for Three-Phase Induction Motor %A Roubache, Toufik %A Chaouch, Souad %A Said, Mohamed Said Nait %X : In this paper, we have studied a different fault tolerant control (FTC) strategies for a three-phase induction motor (3p-IM). Further we introduce Backstepping controller (BC) and Input-output linearization controller (IOLC). To provide a direct comparison between these FTCs approaches, the performances are evaluated using the control of 3p-IM under failures, variable speed, and variable parameters. A comparison between the two control strategies is proposed to prove the most robust one. The simulation results show the robustness and good performance of the fault tolerant control with Input-output linearization controller compared to one with Backstepping controller. The FTC with IOLC is more stable and robust against failures, load torque perturbation and speed reversion %B 9th (Online) International Conference on Applied Analysis and Mathematical Modeling (ICAAMM21) June 11-13, 2021, Istanbul-Turkey %P 30 %8 2021 %G eng %U file:///C:/Users/HU-BAT~1/AppData/Local/Temp/MicrosoftEdgeDownloads/6c9b4e40-cbc2-4ebc-bffd-b9e03c453532/NTMSCI-2021-9-1.15532%20(1).pdf %0 Journal Article %J Energy Reports %D 2021 %T A comparative study of the combustion supplied by multi-fuels: Computational analysis %A Gheraissa, Nadjet %A Bouras, Fethi %A Khaldi, Fouad %A Hidouri, Ammar %A Rehouma, Ferhat %A Dogga, Abdallah %X

The current paper illustrates the numerical study of the global combustion parameters. It mainly focused on the computational analysis that investigated the non-premixed combustion in the cylindrical burner. Therefore, we selected many fuels to supply the burner like Algerian biogas, CH4, C3H8, H2, natural gas, and diesel to compare their aerothermochemical characteristics variables. At first, we applied the numerical methods that confirm the solution convergence like combustion models and grid selection. After that, we resolved the aerothermochemical set equations of combustion using the coupled k-ɛɛ turbulent dynamic model with the probability density function approach. These models are also used to surmount the closer in the set of combustion equations too. Moreover, we integrated the pollutant computation model based on the chemical reactions of NO production. Thus, we evaluated each considered fuel’s NO emission during all combustion fuels cases. Accordingly, the results show that Algerian biogas and hydrogen have special characteristics compared to other cases of fuels. The most prominent characteristics are: the high level of the mixture and burn relative to other fuels, their low pollutants emissions (CO and NO), and the proportional relationship between the OH and NO production. Consequently, biogas and H2 conserve the impact on energy and the environment.

%B Energy Reports %V 7 %P 3819-3832 %8 2021 %@ 2352-4847 %G eng %U https://www.sciencedirect.com/science/article/pii/S2352484721004376 %0 Journal Article %J Applicable Analysis %D 2021 %T On the complete synchronization of a time-fractional reaction–diffusion system with the Newton–Leipnik nonlinearity %A Mansouri, Djamel %A Bendoukha, Samir %A Abdelmalek, Salem %A Youkana, Amar %X

In this paper, we consider a time-fractional reaction-diffusion system with the same nonlinearities of the Newton-Leipnik chaotic system. Through analytical tools and numerical results, we derive sufficient conditions for the asymptotic stability of the proposed model and show the existence of chaos. We also propose a nonlinear synchronization controller for a pair of systems and establish the local and global asymptotic convergence of the trajectories by means of fractional stability theory and the Lyapunov method.

%B Applicable Analysis %V 100 %P 675-694 %8 2021 %@ 0003-6811 %G eng %U https://arxiv.org/abs/1809.08426 %0 Conference Proceedings %B International Conference on Advanced Materials Mechanics & Manufacturing %D 2021 %T Computer Aided Inspection by Reverse Engineering for Reproduction of Gear Teeth %A Selloum, Rabia %A Ameddah, Hacene %A Mourad Brioua %X In the industry, automated inspection is important for ensuring the high quality and allows acceleration of procedures for quality control of parts or mechanical assemblies. Although significant progress has been made in precision machining of complex surfaces, precision inspection of such surfaces remains a difficult problem. Thus the problem of the conformity of the parts of complex geometry is felt more and more. Motivated by the need to increase quality and reduce costs, and supported by the progress made in the field of it as well as the automation of production which in recent years has seen a considerable evolution in all these stages: from design to control through manufacturing. Due to, we used a 3D computer aided inspection technique on a physical gear using a coordinate measuring machine equipped with a “PC-DMIS” measurement and inspection software. Our work consists in developing a procedure for inspection for reproduction of gear profile by reconstruction of a circle involute gear from a cloud point’s measurement. In order to obtain a reliable result. In this works, we design the CAD-model of the part as accurately as possible (using a mathematical model) and matched with the 3D points cloud that represents the measurement that obtained from scanner. we compare the measurement cloud points from coordinate measurement machine with the mathematical model of construction by ICP (Iterative Closest Point) methods in order to obtain a conformed result and to show the impact of the dimensional inspection and geometric. %B International Conference on Advanced Materials Mechanics & Manufacturing %I Springer %C Tunisia %P 292-298 %8 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-86446-0_38 %0 Journal Article %J International Journal of Health Governance %D 2021 %T Contribution of PCA/K-means methods to the mixed assessment of patient safety culture %A Youcef-Oussama Fourar %A Djebabra, MEBAREK %A Wissal Benhassine %A Leila Boubaker %X

Purpose

The assessment of patient safety culture (PSC) is a major priority for healthcare providers. It is often realized using quantitative approaches (questionnaires) separately from qualitative ones (patient safety culture maturity model (PSCMM)). These approaches suffer from certain major limits. Therefore, the aim of the present study is to overcome these limits and to propose a novel approach to PSC assessment.

Design/methodology/approach

The proposed approach consists of evaluating PSC in a set of healthcare establishments (HEs) using the HSOPSC questionnaire. After that, principal component analysis (PCA) and K-means algorithm were applied on PSC dimensional scores in order to aggregate them into macro dimensions. The latter were used to overcome the limits of PSC dimensional assessment and to propose a quantitative PSCMM.

Findings

PSC dimensions are grouped into three macro dimensions. Their capitalization permits their association with safety actors related to PSC promotion. Consequently, a quantitative PSC maturity matrix was proposed. Problematic PSC dimensions for the studied HEs are “Non-punitive response to error”, “Staffing”, “Communication openness”. Their PSC maturity level was found underdeveloped due to a managerial style that favors a “blame culture”.

Originality/value

A combined quali-quantitative assessment framework for PSC was proposed in the present study as recommended by a number of researchers but, to the best of our knowledge, few or no studies were devoted to it. The results can be projected for improvement and accreditation purposes, where different PSC stakeholders can be implicated as suggested by international standards.

%B International Journal of Health Governance %8 2021 %@ 2059-4631 %G eng %U https://www.emerald.com/insight/content/doi/10.1108/IJHG-05-2020-0052/full/html?skipTracking=true %0 Journal Article %J Journal of safety research %D 2021 %T On the contribution to the alignment during an organizational change: Measurement of job satisfaction with working conditions %A Wafa Boulagouas %A Susana García-Herrero %A Rachid Chaib %A SixtoHerrera García %A Mébarek Djebabra %X

Introduction: Modern approaches to Occupational Health and Safety have acknowledged the important contribution that continuous improvements to working conditions can make to the motivation of employees, their subsequent performance, and therefore to the competitiveness of the company. Despite this fact, organizational change initiatives represent a path less traveled by employees. Specialized literature has drawn on the fact that employees’ satisfaction presents both the foundation and catalyst for effective implementation of improvements to working conditions. Method: This paper conceptualizes the alignment of employees through measurement of job satisfaction and uses the Bayesian Network to assess the influence of human factors, particularly the cognitive, emotional, and behavioral aspects. Toward this aim, the Bayesian Network is evaluated through a cross-validation process, and a sensitivity analysis is then conducted for each influential dimension: emotional, cognitive, and behavioral. Results: The results reveal that these three dimensions are interrelated and have a direct influence on job satisfaction and employees’ alignment during the organization change. Further, they suggest that the best strategy for enhanced alignment and smooth conduct of organizational changes is simultaneous enhancement of the three dimensions. Practical applications: This study shows the influence of emotional, cognitive, and behavioral dimensions on job satisfaction and employees’ alignment during the organizational change. Furthermore, it elaborates the way to develop efficient and effective strategies for a successful change implementation and sustained alignment.

%B Journal of safety research %V 76 %P 289-300 %8 2021 %@ 0022-4375 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S0022437520301523 %0 Conference Proceedings %B 11th Annual International Conference on Industrial Engineering and Operations Management, IEOM 2021 %D 2021 %T Contribution to the quantitative study of violence in Algerian hospital environment %A Yamina Heddar %A Mébarek Djebabra %A Saadi, Saadai %X The workplace, and more particularly the healthcare sector, has recently experienced a staggering increase in violence. These aggressive behaviors are resulting in considerable consequences on healthcare workers, both in terms of mental and physical health. In light of this observation, this study aims to provide a quantitative analysis of the potential causes leading to violence in Algerian hospitals, which have become the place where tensions arise, especially during these uncertain times caused by the COVID-19 pandemic. Therefore, we started with conducting a field survey, in order to highlight the main causes behind this violence, as well as the strategy in terms of how it is managed as a risk. Then we used ISHIKAWA diagrams to classify predefined causes into several categories and anticipate the likelihood of such violent behaviors. Finally, the results of this study revealed that working conditions were the main cause of violence in Algerian hospitals. In order to remedy this gap, we recommend improving the healthcare staff well-being, as well as prioritizing proactive measures preventing violent behaviors.  %B 11th Annual International Conference on Industrial Engineering and Operations Management, IEOM 2021 %P 2042-2042 %8 2021 %G eng %U https://pesquisa.bvsalud.org/global-literature-on-novel-coronavirus-2019-ncov/resource/pt/covidwho-1399936 %0 Journal Article %J Mediterranean Journal of Mathematics %D 2021 %T Correction to: Coupled System of Nonlinear Hyperbolic Equations with Variable-Exponents: Global Existence and Stability %A Bouhoufani, Oulia %A Hamchi, Ilhem %B Mediterranean Journal of Mathematics %V 18 %P 1-2 %8 2021 %@ 1660-5454 %G eng %U https://link.springer.com/article/10.1007/s00009-020-01648-7 %0 Conference Proceedings %B 2021 1st International Conference On Cyber Management And Engineering (CyMaEn) %D 2021 %T Cost Optimisation for Wheelchair Redesign %A Bellal, Salah Eddine %A Leila Hayet Mouss %A Sahnoun, M’hammed %A Messaadia, Mourad %X Requirements of users in developing countries differ from those of developed countries. This difference can be seen through wheelchair displacement in infrastructures that don't meet international standards. However, developing countries are obliged to purchase products from developed countries that don't necessarily meet all user's requirements. The modification of these requirements will generate disruption on all the supply chain. This paper proposes a model for optimising the cost of requirement modification on the supply chain and seeks to evaluate the introduction of a new requirement on an existing product/process. This model is adapted to the redesign and development of products, such as wheelchairs, satisfying specific Algerian end-user requirements. %B 2021 1st International Conference On Cyber Management And Engineering (CyMaEn) %I IEEE %C Hammamet, Tunisia %P 1-5 %8 2021 %@ 1-66543-200-4 %G eng %U https://ieeexplore.ieee.org/abstract/document/9497281 %0 Journal Article %J MEDITERRANEAN JOURNAL OF MATHEMATICS %D 2021 %T Coupled System of Nonlinear Hyperbolic Equations with Variable-Exponents: Global Existence and Stability (vol 17, 166, 2020) %A Bouhoufani, Oulia %A Hamchi, Ilhem %X

In this paper, we consider a coupled system of two nonlinear hyperbolic equations with variable-exponents in the damping and source terms. Under suitable assumptions on the intial data and the variable exponents, we prove a global existence theorem, using the Stable-set method. Then, we establish a decay estimate of the solution energy, by Komornik’s integral approach.

%B MEDITERRANEAN JOURNAL OF MATHEMATICS %V 18 %8 2021 %@ 1660-5446 %G eng %U https://link.springer.com/article/10.1007/s00009-020-01589-1 %0 Journal Article %J Analele Universităţii din Oradea, Seria GeografieAnalele Universităţii din Oradea, Seria Geografie %D 2021 %T The Creation of Development Regions as Input to the Regional Development in the North-East Wilayas (Departments) of Algeria %A Nacer, Fetthii %A Hadda DRIDI %X %B Analele Universităţii din Oradea, Seria GeografieAnalele Universităţii din Oradea, Seria Geografie %V 31 %P 1-10 %8 2021 %G eng %U https://web.s.ebscohost.com/abstract?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=12211273&AN=151076179&h=EdsMTdugY2RF4txoyjEuzyQjshhJJAm9PyZhVZCdlRRynkLwGHClP50Ukd2i5Le3H4pAzy9ziqOV5ljHjt2ajw%3d%3d&crl=f&resultNs=AdminWebAuth&resultLocal=Er %0 Journal Article %J Wireless Personal Communications %D 2021 %T Cybersecurity issues in wireless sensor networks: current challenges and solutions %A Boubiche, Djallel-Eddine %A Athmania, Djamel %A Sabrina Boubiche %A Homero, Toral-Cruz %X

Wireless sensor networks are deployed without predefined infrastructure and are generally left unattended. Indeed, the vulnerability of the wireless sensor networks to attacks comes principally from their inherent characteristics. As the data are transmitted over the air, it is very easy for an adversary to spy on traffic. Also, to meet the strict budgetary requirements, the sensor nodes tend to not be tamperproof and thus offer no protection against security attacks. Alongside with these vulnerabilities, the human intervention is always not allowed to deal with adversaries who attempt to compromise the network. Therefore, security systems are mainly needed to secure the network and ensure the protection against security threats. Indeed, cryptographic based systems are generally used to ensure security. However, due to the lack of memory and power (low computing, limited energy reserves) of the sensor nodes, most of these approaches are not suitable. Therefore, providing security while respecting the specific constraints of the sensors, represents one of the most important research issue in wireless sensor networks. Indeed, several studies have been conducted these last decades to propose lightweight and efficient security protocols for wireless sensor networks. In this paper, we review the most leading protocols and classify them based the addressed security issue. Also, we outline the main security constraints and challenges and present the future research directions based on the emerged application fields.

%B Wireless Personal Communications %V 117 %P 177-213 %8 2021 %@ 1572-834X %G eng %U https://link.springer.com/article/10.1007/s11277-020-07213-5 %0 Journal Article %J Petroleum %D 2021 %T A decision loop for situation risk assessment under uncertainty: A case study of a gas facility %A Mohammed, Antar Si %A Smail, Rachid %X

This paper presents a decision-making support system for situation risk assessment associated with critical alarms conditions in a gas facility. The system provides a human operator with advice on the confirmation and classification of occurred alarm. The input of the system comprises uncertain and incomplete information. In the light of uncertain and incomplete information, different uncertainties laws have been associated with the probabilistic assessment of the system loops which combine data of several sources to reach the ultimate classification. The implemented model used Observe-Orient-Decide-Act loop (OODA) combined with Bayesian networks. Results show that the system can classify the alarms system.

%B Petroleum %V 7 %P 343-348 %8 2021 %@ 2405-6561 %G eng %U https://www.sciencedirect.com/science/article/pii/S2405656121000043 %N 3 %0 Conference Proceedings %B The Proceedings of the International Conference on Smart City Applications %D 2021 %T A deep learning approach for the diabetic retinopathy detection %A Sebti, Riad %A Zroug, Siham %A KAHLOUL, Laid %A BENHARZALLAH, Saber %X Diabetic retinopathy is a severe retinal disease that can blur or distort the vision of the patient. It is one of the leading causes of blindness. Early detection of diabetic retinopathy can significantly help in the treatment. The recent development in the field of AI and especially Deep learning provides ambitious solutions that can be exploited to predict, forecast and diagnose several diseases in their early phases. This work aims towards finding an automatic way to classify a given set of retina images in order to detect the diabetic retinopathy. Deep learning concepts have been used with a convolutional neural network (CNN) algorithm to build a multi-classification model that can detect and classify disease levels automatically. In this study, a CNN architecture has been applied with several parameters on a dataset of diabetic retinopathy with different structures. At the current stage of this work, obtained results are highly encouraging. %B The Proceedings of the International Conference on Smart City Applications %I Springer %P 459-469 %8 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-94191-8_37 %0 Journal Article %J Ocean EngineeringOcean Engineering %D 2021 %T A deep supervised learning approach for condition-based maintenance of naval propulsion systems %A Berghout, Tarek %A Mouss, Leïla-Hayet %A Bentrcia, Toufik %A Elbouchikhi, Elhoussin %A Benbouzid, Mohamed %X

In the last years, predictive maintenance has gained a central position in condition-based maintenance tasks planning. Machine learning approaches have been very successful in simplifying the construction of prognostic models for health assessment based on available historical labeled data issued from similar systems or specific physical models. However, if the collected samples suffer from lack of labels (small labeled dataset or not enough samples), the process of generalization of the learning model on the dataset as well as on the newly arrived samples (application) can be very difficult. In an attempt to overcome such drawbacks, a new deep supervised learning approach is introduced in this paper. The proposed approach aims at extracting and learning important patterns even from a small amount of data in order to produce more general health estimator. The algorithm is trained online based on local receptive field theories of extreme learning machines using data issued from a propulsion system simulator. Compared to extreme learning machine variants, the new algorithm shows a higher level of accuracy in terms of approximation and generalization under several training paradigms.

%B Ocean EngineeringOcean Engineering %V 221 %P 108525 %8 2021 %@ 0029-8018 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S0029801820314323 %0 Book Section %B Electrical and Electronic Devices, Circuits, and Materials: Technological Challenges and SolutionsElectrical and Electronic Devices, Circuits, and Materials: Technological Challenges and Solutions %D 2021 %T Design and Optimization of Heterostructure Double Gate Tunneling Field Effect Transistor for Ultra Low Power Circuit and System %A Naima, Guenifi %A Rahi, Shiromani Balmukund %X

This chapter focuses on double gate (DG) Tunneling Field Effect Transistor (TFET), having band engineering and high - k dielectrics. The basic structure of TFET device is derived and developed by p-i-n diode, containing two heavily doped degenerated semiconductor “p” and “n” regions and lightly doped intrinsic “i” region, respectively. The chapter explores the idea of high-k dielectric engineering as well as band engineering concept with DG -TFET. TFET is a type of field effect device in which current transport phenomena occur due to quantum tunneling between source and channel. The estimation of device characteristics and performance of TFET is time consuming and costly due to lack of rapid advancement in technology. TFET devices have become the most popular switching device among semiconductor players. The chapter summarizes the obtained results by popular device analysis technique, modeling and simulation of DG -TFET.

%B Electrical and Electronic Devices, Circuits, and Materials: Technological Challenges and SolutionsElectrical and Electronic Devices, Circuits, and Materials: Technological Challenges and Solutions %P 19-36 %8 2021 %G eng %U https://onlinelibrary.wiley.com/doi/10.1002/9781119755104.ch2 %0 Journal Article %J International Journal of Computer Integrated Manufacturing %D 2021 %T Design of graded lattice structures in turbine blades using topology optimization %A Alkebsi, Ebrahim Ahmed Ali %A Ameddah, Hacene %A OUTTAS, Toufik %A Almutawakel, Abdallah %X

Designing and manufacturing lattice structures with Topology Optimization (TO) and Additive Manufacturing (AM) techniques is a novel method to create light-weight components with promising potential and high design flexibility. This paper proposes a new design of lightweight-graded lattice structures to replace the internal solid volume of the turbine blade to increase its endurance of high thermal stresses effects. The microstructure design of unit cells in a 3D framework is conducted by using the lattice structure topology optimization (LSTO) technique. The role of the LSTO is to find an optimal density distribution of lattice structures in the design space under specific stress constraints and fill the inner solid part of the blade with graded lattice structures. The derived implicit surfaces modelling is used from a triply periodic minimal surfaces (TPMS) to optimize the mechanical performances of lattice structures. Numerical results show the validity of the proposed method. The effectiveness and robustness of the constructed models are analysed by using finite element analysis. The simulation results show that the graded lattice structures in the improved designs have better efficiency in terms of lightweight (33.41–40.32%), stress (25.52–48.55%) and deformation (7.35–19.58%) compared to the initial design.

%B International Journal of Computer Integrated Manufacturing %V 34 %P 370-384 %8 2021 %@ 0951-192X %G eng %U https://www.tandfonline.com/doi/abs/10.1080/0951192X.2021.1872106 %0 Journal Article %J Journal of Interdisciplinary Mathematics %D 2021 %T Design of nonstationary wavelets through the positive solution of Bezout’s equation %A Brahimi, Mahmoud %A Melkemi, Khaled %A Boussaad, Abdelmalik %X

In this paper, we present a new technique for constructing a nonstationary wavelet. The key idea relies on the following: for each wavelet level, we solve the Bezout’s equation and we propose a positive solution over the interval [–1, 1]. Using the Bernstein’s polynomials we approximate this proposed positive solution with the intention to perform a spectral factorization.

%B Journal of Interdisciplinary Mathematics %V 24 %P 553-565 %8 2021 %@ 0972-0502 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/09720502.2020.1792102 %N 3 %0 Journal Article %J Computación y Sistemas %D 2021 %T Detection of Flooding Attack on OBS Network Using Ant Colony Optimization and Machine Learning %A Seddik, Mohamed-Takieddine %A Ouahab KADRI %A Bouarouguene, Chakir %A Brahimi, Houssem %X

Optical burst switching (OBS) has become one of the best and widely used optical networking techniques. It offers more efficient bandwidth usage than optical packet switching (OPS) and optical circuit switching (OCS).However, it undergoes more attacks than other techniques and the Classical security approach cannot solve its security problem. Therefore, a new security approach based on machine learning and cloud computing is proposed in this article. We used the Google Colab platform to apply Support Vector Machine (SVM) and Extreme Learning Machine (ELM)to Burst Header Packet (BHP) flooding attack on Optical Burst Switching (OBS) Network Data Set.

%B Computación y Sistemas %V 25 %P 423-433 %8 2021 %@ 1405-5546 %G eng %U https://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-55462021000200423 %N 2 %0 Journal Article %J Wireless Personal Communications %D 2021 %T Developing a Web Platform for the Management of the Predictive Maintenance in Smart Factories %A AKSA, Karima %A Samia Aitouche %A Bentoumi, Hamza %A Sersa, Ibrahim %X

Industry 4.0 is a tsunami that will invade the whole world. The real challenge of the future factories requires a high degree of reliability both in machinery and equipment. Thereupon, shifting the rudder towards new trends is an inevitable obligation in this fourth industrial revolution where the maintenance system has radically changed to a new one called predictive maintenance 4.0 (PdM 4.0). This latter is used to avoid predicted problems of machines and increase their lifespan taking into account that if machines have not any predicted problem, they will never be checked. However, in order to get successful prediction of any kind of problems, minimizing energy and resources consumption along with saving costs, this PdM 4.0 needs many new emerging technologies such as the internet of things infrastructure, collection and distribution of data from different smart sensors, analyzing/interpreting a huge amount of data using machine/deep learning…etc. This paper is devoted to present the industry 4.0 and its specific technologies used to ameliorate the existing predictive maintenance strategy. An example is given via a web platform to get a clear idea of how PdM 4.0 is applied in smart factories.

%B Wireless Personal Communications %V 119 %P 1469-1497 %8 2021 %@ 1572-834X %G eng %U https://link.springer.com/article/10.1007/s11277-021-08290-w %0 Thesis %B Hygiène et sécurité industrielle %D 2021 %T DEVELOPPEMENT ET VALIDATION D’UNE APPROCHE DE DECISION SOCIOTECHNIQUE LIEE AUX PROBLEMES D’INDUSTRIALISATION EN ALGERIE %A Yacine Belmazouzi %X Le Groupe Sonatrach est le géant algérien de l’industrie pétro-gazière. Sa force réside dans sa capacité à être un Groupe intégré dans l’ensemble de la chaîne de valeurs (depuis l’exploration en passant par la production jusqu’à la commercialisation). Ses installations onshore, qui sont considérées comme des systèmes sociotechniques complexes, souffrent des problèmes de vieillissement matérialisés par la dégradation des performances de ces installations. Cette thèse de doctorat a pour objet d’étudier ce problème de vieillissement dans le but de le maîtriser. S’intégrant dans ce contexte et après avoir rappelé le phénomène du vieillissement ainsi que les approches qui le gouverne, une proposition d’une approche de maîrise du vieillissement à base d’indicateurs est proposée dans un premier temps et dans un second temps une étude critique du référentiel "Gestion des Modifications" du Groupe Sonatrach est également présentée. %B Hygiène et sécurité industrielle %8 2021 %G eng %U http://eprints.univ-batna2.dz/1912/ %9 Doctorat en sciences %0 Journal Article %J Communications in Statistics-Simulation and ComputationCommunications in Statistics-Simulation and Computation %D 2021 %T Different EDF goodness-of-fit tests for competing risks models %A Chouia, Sana %A Seddik-Ameur, Nacira %X

The common used goodeness-of-fit tests are based on the empirical distributions functions (EDF) where distances between empirical and theoretical hypothesized distributions are compared to critical values. The aim of this paper is to provide for different sample sizes, tables of goodness-of-fit critical values of modified Kolmogorov-Smirnov statistic Dn,��, Anderson-Darling statistic A2, Cramer-Von Mises statistic W2,�2, Liao and Shimokawa statistic Ln, and Watson statistic U2 for the competing risks model of Bertholon which is used to describe the reliability of real systems where failure times can have different risks and in medical studies to characterize the survival time of patients who can have risks of death from different causes. The power of these statistics is studied using some alternatives such as the exponential, the inverse Weibull, the exponentiated Weibull and the exponentiated exponential distributions. All the computation are carried out by using matlab software and Monte Carlo method.

%B Communications in Statistics-Simulation and ComputationCommunications in Statistics-Simulation and Computation %V 52 %P 1-11 %8 2021 %@ 0361-0918 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/03610918.2021.1938119 %N 8 %0 Journal Article %J Revue Roumaine des Sciences Techniques—Série Électrotechnique et Énergétique %D 2021 %T DIRECTIONAL VIRTUAL FLOW CONTROL OF THE DOUBLE STAR CAGE ASYNCHRONOUS GENERATOR %A BENDJEDDOU, YACINE %A Abdessemed, Rachid %A MERABET, ELKHEIR %X

This article is devoted to the study of the performance of the double star cage asynchronous generator (GASDE) in isolated site. The control system consists of a GASDE connected to a dc bus and a load at the output of two PWM control rectifiers. A comparative study between the conventional control technique and the adapted control based on the introduction of the SVM- PI-fuzzy and a new flux estimator (virtual stator flux) in order to improve the quality of energy and to attenuate the harmonic of the current.

%B Revue Roumaine des Sciences Techniques—Série Électrotechnique et Énergétique %V 66 %P 71-76 %8 2021 %@ 0035-4066 %G eng %U https://journal.iem.pub.ro/rrst-ee/article/view/51 %0 Journal Article %J International Journal of Swarm Intelligence Research (IJSIR) %D 2021 %T A Discrete Crow Search Algorithm for Mining Quantitative Association Rules %A Ledmi, Makhlouf %A Hamouma Moumen %A Siam, Abderrahim %A Haouassi, Hichem %A Azizi, Nabil %X Association rules are the specific data mining methods aiming to discover explicit relations between the different attributes in a large dataset. However, in reality, several datasets may contain both numeric and categorical attributes. Recently, many meta-heuristic algorithms that mimic the nature are developed for solving continuous problems. This article proposes a new algorithm, DCSA-QAR, for mining quantitative association rules based on crow search algorithm (CSA). To accomplish this, new operators are defined to increase the ability to explore the searching space and ensure the transition from the continuous to the discrete version of CSA. Moreover, a new discretization algorithm is adopted for numerical attributes taking into account dependencies probably that exist between attributes. Finally, to evaluate the performance, DCSA-QAR is compared with particle swarm optimization and mono and multi-objective evolutionary approaches for mining association rules. The results obtained over real-world datasets show the outstanding performance of DCSA-QAR in terms of quality measures. %B International Journal of Swarm Intelligence Research (IJSIR) %V 12 %P 101-124 %8 2021 %G eng %U https://www.igi-global.com/article/a-discrete-crow-search-algorithm-for-mining-quantitative-association-rules/290282 %N 4 %0 Conference Paper %B Proceedings of the 4th International Conference on Networking, Information Systems & Security %D 2021 %T Discrete Large-scale Multi-Objective Teaching-Learning-Based Optimization Algorithm %A Aouadj, Wafa %A Abdessemed, Mohamed Rida %A Seghir, Rachid %X This paper presents a teaching-learning-based optimization algorithm for discrete large-scale multi-objective problems (DLM-TLBO). Unlike the previous variants, the learning strategy used by each individual and the acquired knowledge are defined based on its level. The proposed approach is used to solve a bi-objective object clustering task (B-OCT) in a swarm robotic system, as a case study. The simple robots have as mission the gathering of a number of objects distributed randomly, while respecting two objectives: maximizing the clustering quality, and minimizing the energy consumed by these robots. The simulation results of the proposed algorithm are compared to those obtained by the well-known algorithm NSGA-II. The results show the superiority of the proposed DLM-TLBO in terms of the quality of the obtained Pareto front approximation and convergence speed. %B Proceedings of the 4th International Conference on Networking, Information Systems & Security %P 1-6 %8 2021 %G eng %U https://dl.acm.org/doi/abs/10.1145/3454127.3456609 %0 Journal Article %J International Journal of Smart Grid-ijSmartGrid %D 2021 %T DPC-SVM of DFIG Using Fuzzy Second Order Sliding Mode Approach %A Mazouz, Farida %A Sebti Belkacem %A Colak, Ilhami %X

The direct control power (DPC) of the of the double feed induction generator (DFIG) using conventional controllers based on PI regulators is characterized by poor results: Robustness properties are not guaranteed in the face of parametric uncertainties and strong ripple of the powers. From the best evoked control techniques presented in this field to overcome these drawbacks, we will study some improvement variants such as the use of The second order sliding mode control (SOSMC) developed on the basis of the super twisting torsion algorithm (STA) associated with the fuzzy logic control to obtain (FSOSMC) in order to obtain acceptable performance. Finally, the effectiveness of the planned control system is studied using Matlab/Simulink. The proposed method that not only reduces power ripples, but also improves driving dynamics by making it less sensitive to parameter uncertainty.

%B International Journal of Smart Grid-ijSmartGrid %V 5 %P 174-182 %8 2021 %@ 2602-439X %G eng %U https://www.ijsmartgrid.org/index.php/ijsmartgridnew/article/view/219 %N 4 %0 Journal Article %J International Journal of Information Security and Privacy (IJISP) %D 2021 %T DS-kNN: An Intrusion Detection System Based on a Distance Sum-Based K-Nearest Neighbors %A Taguelmimt, Redha %A Beghdad, Rachid %X


On one hand, there are many proposed intrusion detection systems (IDSs) in the literature. On the other hand, many studies try to deduce the important features that can best detect attacks. This paper presents a new and an easy-to-implement approach to intrusion detection, named distance sum-based k-nearest neighbors (DS-kNN), which is an improved version of k-NN classifier. Given a data sample to classify, DS-kNN computes the distance sum of the k-nearest neighbors of the data sample in each of the possible classes of the dataset. Then, the data sample is assigned to the class having the smallest sum. The experimental results show that the DS-kNN classifier performs better than the original k-NN algorithm in terms of accuracy, detection rate, false positive, and attacks classification. The authors mainly compare DS-kNN to CANN, but also to SVM, S-NDAE, and DBN. The obtained results also show that the approach is very competitive.

%B International Journal of Information Security and Privacy (IJISP) %V 15 %P 131-144 %8 2021 %G eng %U https://www.igi-global.com/article/ds-knn/276388 %N 2 %0 Conference Proceedings %B 2021 International Conference on Control, Automation and Diagnosis (ICCAD) %D 2021 %T dSPACE Real-Time Implementation of Maximum Power Point Tracking Based on Kalman Filter Structure using Photovoltaic System Emulator %A Boutabba, T %A Fatah, A %A Sahraoui, H %A Khamari, D %A Benlaloui, I %A Drid, S %A Chrifi-Alaoui, L %X In this paper, we propose an implementation of a new technique of power maximization using a photovoltaic system emulator. The PV system design and its performance evaluation test before installation would be both costly and time-consuming. To overcome this problem the use of an emulator adds more performance and efficiency in the laboratory. Also, by measuring the voltage and current from the PV emulator the characteristic I-V and P-V are extract.The need to consider the measure power state is strongly nonlinear distribution curve with noise. For that reason, to establish and to detect the power value, measurement equations and dynamic equations proposed MPPT control strategy based on Kalman filter algorithm. The correctness and effectiveness of the strategy is verified by simulation and experiment. This algorithm was experimentally implemented. Data acquisition and control system were implemented using dSPACE1103. The results show that the Kalman filter MPPT work accurately and successfully under the change of solar irradiation. %B 2021 International Conference on Control, Automation and Diagnosis (ICCAD) %I IEEE %C Grenoble, France %P 1-6 %8 2021 %@ 1-66544-968-3 %G eng %U dSPACE Real-Time Implementation of Maximum Power Point Tracking Based on Kalman Filter Structure using Photovoltaic System Emulator %0 Journal Article %J Journal of Measurements in Engineering %D 2021 %T Dual direct torque control of doubly fed induction machine using second order sliding mode control %A Boumaraf, Farid %A BOUTABBA, Tarek %A Sebti Belkacem %X

In this paper a dual direct torque control (DDTC) strategy with second-order sliding mode control (SOSMC) controller of the doubly fed Induction motor (DFIM) is presented in order to overcome some drawback such as ripples in torque, flux and to improve dual direct torque control (DDTC) performance toward the electrical parameters variations. This control strategy used in the doubly fed induction machine supplied, coupled by two voltage source inverters in rotor and stator sides witches are linked to two switching tables in order to determined the rotor and stator flux vector control. This controller based on super-twisting algorithm (STA). Comparative results between a classical controller (PI) and the proposed controller can prove the very satisfactory performance and robustness of this new controller.

Dual direct torque control of doubly fed induction machine using second order sliding mode control

 

%B Journal of Measurements in Engineering %V 9 %P 1-12 %8 2021 %@ 2335-2124 %G eng %U https://www.extrica.com/article/21432 %N 1 %0 Journal Article %J International Information and Engineering Technology Association (IIETA) %D 2021 %T Eddy Current Probe Configuration for Full Rail Top Surface Inspection %A Aouf, Anouaressadate %A Bouchala, Tarik %A Abdou, Abdelhak %A Abdelhadi, Bachir %A Kim, SeongKi %A Thippeswamy, Veerabhadrappa S %A Shivakumaraswamy, Puranik M %A Chickaramanna, Suguna G %A Iyengar, Venkatesha M %A Das, Anuroop P %X

In this paper, we have carried out an experimental study of the detection of top rail surface cracks. Firstly, we have highlighted the inability to inspect the entire rail head surface by a single sensor with a single scan. To overcome this inspection inability, we have proposed a multisensor system composed of three differential probes arranged within a specific configuration. The yielded results showed the efficiency and the robustness of the proposed configuration in the detection of cracks regardless its size, orientation and location.

%B International Information and Engineering Technology Association (IIETA) %V 20 %P 65-72 %8 2021 %G eng %U https://www.iieta.org/journals/i2m/paper/10.18280/i2m.200201 %0 Journal Article %J Research Square %D 2021 %T The Effect of Faults on the Behaviour of the Earth Dam–Case Study of the Ourkiss Dam. (Preprint) %A Beghzim, Hassiba %A Karech, Toufik %A Tayeb Bouzid %X

The analysis of the failure due to the effect of the propagation of normal and reversed faults with different angles of inclination and by sliding through the Ourkiss dam isstudied numerically. Mainly at the end of construction and at the highest water level, for this purpose the non-linear finite difference method is used considering four fault angles of inclination, activated at the center of the base of the embankment.

The results of the study show that the shear stress values increase with the increase of the vertical base displacement imposed in both conditions of the dam state, and this for both normal and overturned faults.

%B Research Square %8 2021 %G eng %U https://www.researchsquare.com/article/rs-1123142/v1 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Effect of Masonry Infill Panels on the Seismic Response of Reinforced Concrete Frame Structures %A Zine, Ali %A Kadid, Abdelkrim %A Zatar, Abdallah %X

The present work concerns the numerical investigation of reinforced concrete frame buildings containing masonry infill panel under seismic loading that are widely used even in high seismicity areas. In seismic zones, these frames with masonry infill panels are generally considered as higher earthquake risk buildings. As a result there is a growing need to evaluate their level of seismic performance. The numerical modelling of infilled frames structures is a complex task, as they exhibit highly nonlinear inelastic behaviour, due to the interaction of the masonry infill panel and the surrounding frame. The available modelling approaches for masonry infill can be grouped into two principal types; Micro models and Macro models. A two dimensional model of the structure is used to carry out non-linear static analysis. Beams and columns are modelled as non-linear with lumped plasticity where the hinges are concentrated at both ends of the beams and the columns. This study is based on structures with design and detailing characteristics typical of Algerian construction model. In this regard, a non-linear pushover analysis has been conducted on three considered structures, of two, four and eight stories. Each structure is analysed as a bare frame and with two different infill configurations (totally infilled, and partially infilled). The main results that can be obtained from a pushover analysis are the capacity curves and the distribution of plastic hinges in structures. The addition of infill walls results in an increase in both the rigidity and strength of the structures. The results indicate that the presence of non-structural masonry infills can significantly modify the seismic response of reinforced concrete "frames". The initial rigidity and strength of the fully filled frame are considerably improved and the patterns of the hinges are influenced by structural elements type depending on the dynamic characteristics of the structures.

%B Civil Engineering Journal %V 7 %P 1853-1867 %8 2021 %@ 2476-3055 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2982 %N 11 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Effect of masonry infill walls with openings on nonlinear response of steel frames %A Rahem, Athmane %A Djarir, Yahiaoui %A Noureddine, Lahbari %A Tayeb, Bouzid %X

The infill walls are usually considered as nonstructural elements and, thus, are not taken into account in analytical models. However, numerous researches have shown that they can significantly affect the seismic response of the structures. The aim of the present study is to examine the role of masonry infill on the damage response of steel frame without and with various types of openings systems subjected to nonlinear static analysis and nonlinear time history analysis. For the purposes of the above investigation, a comprehensive assessment is conducted using twelve typical types of steel frame without masonry, with full masonry and with different heights and widths of openings. The results revealed that the influence of the successive earthquake phenomenon on the structural damage is larger for the infill buildings compared to the bare structures. Furthermore, when buildings with masonry infill are analyzed for seismic sequences, it is of great importance to account for the orientation of the seismic motion. The nonlinear static response indicated that the opening area has an influence on the maximal strength, the ductility and the initial rigidity of these frames. But the shape of the opening will not influence the global behavior. Then, the nonlinear time history analysis indicates that the global displacement is greatly decreased and even the behavior of the curve is affected by the earthquake intensity when opening is considered.

%B Civil Engineering Journal %V 7 %P 278-291 %8 2021 %@ 2476-3055 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2630 %N 2 %0 Journal Article %J International Journal of Ambient Energy %D 2021 %T Effect of material and geometric parameters on natural convection heat transfer over an eccentric annular-finned tube %A Fourar, Issam %A Benmachiche, Abdelmoumene-Hakim %A Abboudi, Said %X

In this work, the performance of an eccentric annular finned tube heat exchanger under natural convection conditions has been investigated numerically. The objective of the study is to analyse the effect of eccentric coefficient on the rate heat flux as a function of the fin material, diameter, spacing and thicknesses. To perform the numerical simulations, 3D ANSYS FLUENT computational fluid dynamics has been used. The study has been conducted in laminar flow across the single annular finned tube with Rayleigh numbers within of (4 × 104−7 × 104). It is concluded that the eccentricity effect appears better in high thermal conductivity materials with small fin diameter. Regardless of the fin eccentricity, thick fins produce the best heat transfer.

%B International Journal of Ambient Energy %V 42 %P 929-939 %8 2021 %@ 0143-0750 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/01430750.2019.1573757 %N 8 %0 Journal Article %J International Journal of Environment and Waste Management %D 2021 %T Effect of the poultry droppings waste on the different life stage of Eisenia fetida (Savigny, 1826) %A Zeguerrou, Nadia %A Adjroudi, Rachid %A Abdelkrim Si Bachir %A El-Okki, Mohamed El Hadef %X

This paper aims to evaluate the effect of poultry droppings waste on the different life stage of Eisenia fetida earthworm to protect them from hazardous doses. Adults, juveniles and cocoons were exposed during 90 days to increased doses of poultry droppings (0, 10, 20, 50 and 100 g), added to 250 g of culture substrate. The biological parameters, like mortality, body length, fresh biomass, and cocoons hatching were affected by the organic waste doses and the exposure time. Both poultry droppings doses 10 g (4%) and 20 g (8%) were the less toxic to the cocoons hatching and to the adults' and juveniles' growth. While the two doses, 50 g (20%) and 100 g (40%), had a negative impact on the cocoon hatchability and a toxic effect on the juveniles and adults. Otherwise, the poultry droppings dose 100 g was lethal for the all life stage of E. fetida.

%B International Journal of Environment and Waste Management %V 28 %P 131-148 %8 2021 %@ 1478-9876 %G eng %U https://www.inderscience.com/info/inarticle.php?artid=117191 %N 2 %0 Journal Article %J Soils and RocksSoils and Rocks %D 2021 %T Effects of underground circular void on strip footing laid on the edge of a cohesionless slope under eccentric loads %A Mansouri, Tarek %A Boufarh, Rafik %A Saadi, Djamel %X

Owing to the comeback of small-scale models, this paper presents results of an experimental study based on the effect of underground circular voids on strip footing placed on the edge of a cohesionless slope and subjected to eccentric loads. The bearing capacity-settlement relationship of footing on the slope and impact of diverse variables are expressed using dimensionless parameters such as the top vertical distance of the void from the base of footing, horizontal space linking the void-footing centre, and load eccentricity. The results verified that the stability of strip footing is influenced by the underground void, as well as the critical depth between the soil and top layer of the void. The critical horizontal distance between the void and the centre was also affected by the underground void. Furthermore, the results also verified that the influence of the void appeared insignificant when it was positioned at a depth or eccentricity equal to twice the width of footing.    

%B Soils and RocksSoils and Rocks %V 44 %8 2021 %@ 1980-9743 %G eng %U https://www.soilsandrocks.com/sr-2021-055920 %N 1 %0 Journal Article %J Wireless Personal Communications %D 2021 %T An Efficient Approach for Big Data Aggregation Mechanism in Heterogeneous Wireless Connected Sensor Networks %A Sabrina Boubiche %A Azeddine Bilami %A Boubiche, Djallel-Eddine %X

Recently and due to the impressive growth in the amounts of transmitted data over the heterogeneous sensor networks and the emerged related technologies especially the Internet of Things in which the number of the connected devices and the data consumption are remarkably growing, big data has emerged as a widely recognized trend and is increasingly being talked about. The term big data is not only about the volume of data, but also refers to the high speed of transmission and the wide variety of information that is difficult to collect, store and process using the available classical technologies. Although the generated data by the individual sensors may not appear to be significant, all the data generated through the many sensors in the connected sensor networks are able to produce large volumes of data. Big data management imposes additional constraints on the wireless sensor networks and especially on the data aggregation process, which represents one of the essential paradigms in wireless sensor networks. Data aggregation process can represent a solution to the problem of big data by allowing data from different sources to be combined to eliminate the redundant ones and consequently reduce the amounts of data and the consumption of the available resources in the network. The main objective of this work is to propose a new approach for supporting big data in the data aggregation process in heterogeneous wireless sensor networks. The proposed approach aims to reduce the data aggregation cost in terms of energy consumption by balancing the data loads on the heterogeneous nodes. The proposal is improved by integrating the feedback control closed loop to reinforce the balance of the data aggregation load on the nodes, maintaining therefore an optimal delay and aggregation time.

%B Wireless Personal Communications %V 118 %P 1405-1437 %8 2021 %@ 1572-834X %G eng %U https://link.springer.com/article/10.1007/s11277-021-08082-2 %0 Journal Article %J Pediatric Rheumatology %D 2021 %T Epidemiology and demographics of juvenile idiopathic arthritis in Africa and Middle East %A Sulaiman, Al-Mayouf %A Muna, Mutairi %A Kenza, Bouayed %A Sara, Habjoka %A Djohra, Hadef %A Hala, Lotfy %A Christiaan, Scott %A Elsadeg, Sharif %A Nouran, Tahoun %X

Juvenile Idiopathic Arthritis (JIA) is a group of chronic heterogenous disorders that manifests as joint inflammation in patients aged <16 years. Globally, approximately 3 million children and young adults are suffering from JIA with prevalence rates consistently higher in girls. The region of Africa and Middle East constitute a diverse group of ethnicities, socioeconomic conditions, and climates which influence the prevalence of JIA. There are only a few studies published on epidemiology of JIA in the region. There is an evident paucity of adequate and latest data from the region. This review summarizes the available data on the prevalence of JIA and its subtypes in Africa and Middle East and discusses unmet needs for patients in this region. A total of 8 journal publications were identified concerning epidemiology and 42 articles describing JIA subtypes from Africa and Middle East were included. The prevalence of JIA in Africa and Middle East was observed to be towards the lower range of the global estimate. We observed that the most prevalent subtype in the region was oligoarticular arthritis. The incidence of uveitis and anti-nuclear antibody (ANA) positivity were found to be lower as compared to the incidence from other regions. There is a huge unmet medical need in the region for reliable epidemiological data, disease awareness, having regional and local treatment guidelines and timely diagnosis. Paucity of the pediatric rheumatologists and economic disparities also contribute to the challenges regarding the management of JIA.

%B Pediatric Rheumatology %V 19 %8 12 2021 %G eng %U https://ped-rheum.biomedcentral.com/articles/10.1186/s12969-021-00650-x %0 Journal Article %J Journal of Global Antimicrobial Resistance %D 2021 %T Epidemiology of mobile colistin resistance (mcr) genes in aquatic environments %A Zineb Cherak %A Lotfi Loucif %A Moussi, Abdelhamid %A Jean-Marc Rolain %X

Colistin is one of the last-line therapies against multidrug-resistant Gram-negative pathogens, especially carbapenemase-producing isolates, making resistance to this compound a major global public-health crisis. Until recently, colistin resistance in Gram-negative bacteria was known to arise only by chromosomal mutations. However, a plasmid-mediated colistin resistance mechanism was described in late 2015. This mechanism is encoded by different mobile colistin resistance (mcr) genes that encode phosphoethanolamine (pEtN) transferases. These enzymes catalyse the addition of a pEtN moiety to lipid A in the bacterial outer membrane leading to colistin resistance. MCR-producing Gram-negative bacteria have been largely disseminated worldwide. However, their environmental dissemination has been underestimated. Indeed, water environments act as a connecting medium between different environments, allowing them to play a crucial role in the spread of antibiotic resistance between the natural environment and humans and other animals. For a better understanding of the role of such environments as reservoirs and/or dissemination routes of mcr genes, this review discusses primarily the various water habitats contributing to the spread of antibiotic resistance. Thereafter, we provide an overview of existing knowledge regarding the global epidemiology of mcr genes in water environments. This review confirms the global distribution of mcr genes in several water environments, including wastewater from different origins, surface water and tap water, making these environments reservoirs and dissemination routes of concern for this resistance mechanism.

%B Journal of Global Antimicrobial Resistance %V 27 %P 51-62 %8 2021 %@ 2213-7165 %G eng %U https://pubmed.ncbi.nlm.nih.gov/34438108/ %0 Thesis %B Biologie des organismes %D 2021 %T Evaluation des activités biologiques et caractérisation phytochimique de la plante Ephedra altissima Desf %A BOUAFIA, Waffa %X

Ephedra altissima Desf. est une plante médicinale de la famille des Ephedraceae, largement utilisée en médecine traditionnelle pour le traitement des maladies respiratoires et le diabète. L’objectif de la présente étude est l’évaluation des activités biologiques in vitro et la caractérisation phytochimique des extraits (éther de pétrole, acétate d’éthyle et n-butanol) obtenus à partir de la plante Ephedra altissima. Des dosages colorimétriques ont été effectués pour révéler la présence de différentes classes de métabolites secondaires. La détermination des teneurs en polyphénols, flavonoïdes et tanins condensés a été réalisée par des dosages spectrophotométriques. L’activité antioxydante a été évaluée par huit méthodes différentes, l’activité anti-artéritiques a été réalisée par la méthode d’inhibition de la dénaturation du sérum d’albumine bovin, les activités inhibitrices de l’α-amylase et de la lipase pancréatique in vitro ont été estimées par des méthodes colorimétriques en utilisant de l'amidon et du p-nitrophényl butyrate en tant que substrats. Les conditions physiologiques de la digestion humaine ont été simulées par le modèle de la digestion gastro-intestinale (DGI) in vitro. L’activité antibactérienne a été déterminée par la méthode de diffusion sur disques en milieu gélosé contre sept souches bacteriennes. L’analyse et la quantification des composés phénoliques ont été effectuées par LC-DAD-ESI/MS. L’investigation phytochimique de l’extrait n-butanolique a été réalisée par l’utilisation en alternance de diverses méthodes chromatographiques (VLC, CC, CCE et CCM). Les structures des deux composés isolés A et B ont été identifiées par analyse spectroscopique ESI-MS, l’UV et la RMN dans ses multiples techniques, RMN 1H, RMN 13C, et RMN 2D (COSY, HSQC, HMBC et TOCSY). A l’issue de ces travaux, nous retiendrons la richesse de cette plante en métabolites secondaires. En effet, l’extrait AcOEt présente la teneur la plus élevée en polyphénols (125,62 μg EAG mg-1), et le n-BuOH possède la teneur la plus élevée en flavonoïdes (19,18 μg EQ mg-1). Tous les extraits ont des activités antioxydantes dans divers systèmes et l'extrait aqueux a montré une bonne activité antioxydante par la méthode potentiométrique. L’extrait AcOEt exhibe la plus forte activité anti-artéritique, activités inhibitrices de de l’α-amylase et de la lipase pancréatique avec des valeurs de CI50 (126,4 ± 2,36, 8,07 ± 0,15 et 289,1 ± 0,53 μg/ml) respectivement. Tous les extraits testés exercent une activité antibactérienne dose dépendante contre au moins trois souches avec des CMI allant de (3,12 à 50 μg/ml). L’analyse par LC-DAD-ESI/MS a permis de détecter la présence de dix-neuf composés différents, huit sont des acides phénoliques simples et des dérivés d'acide phénolique, et onze sont des flavonoïdes liés à des groupes glycosyles. L’investigation phytochimique réalisée sur l’extrait n-batanolique conduit à l’isolement et identification structurale de deux flavonoides glycosylés nommés : Isorhamnétine 3-O- α-L-rhamnopyranosyl (1’’’-6’’)- β-D-galactopyranoside et Kaempférol 3-O- α-L-rhamnopyranosyl (1’’’-6’’)- β-D-glucopyranoside.

%B Biologie des organismes %8 2021 %G eng %U http://eprints.univ-batna2.dz/1945/ %9 Doctorat LMD %0 Journal Article %J Multidisciplinary Science Journal %D 2021 %T Evaluation of biosecurity practices in a laying hens farm using Biocheck. UGent %A Alloui, Nadir %A Sellaoui, Sassia %A Ammar Ayachi %A Bennoune, Omar %X

The Biocheck.UGent scoring system was developed to measure and quantify the level of biosecurity in animal husbandry. This tool is composed of all the relevant elements of biosecurity in poultry farms (broilers and laying hens) and is subdivided into external and internal biosecurity. The peculiarity of this scoring system is that it takes into account the relative importance of the different aspects of biosecurity, resulting in a risk-weighted score. The biosecurity scores obtained are provided immediately after completing the questionnaire and the scores for each sub-category can be compared to global averages to allow the poultry farmer to compare the results obtained and correct any anomalies that are on their farm. In Algeria, preliminary results from a survey in poultry houses of 30.000 laying hens show a wide range of biosecurity levels on that farm, with internal biosecurity scores ranging from 6 to 72% and external biosecurity scores ranging from 28 to 92% in the subgroups. The overall scores were 50% and 54%, respectively. These early results show that despite the well-known importance of biosecurity, there is a lack of implementation of many biosecurity measures.

%B Multidisciplinary Science Journal %V 3 %P e2021014-e2021014 %8 2021 %@ 2675-1240 %G eng %U https://malque.pub/ojs/index.php/msj/article/view/171 %N 3 %0 Journal Article %J Sustainable Water Resources Management %D 2021 %T Evaluation of the quality of groundwater for its appropriateness for irrigation purposes using Water Quality Index (WQI), Mchira-Teleghma aquifer case study, northeastern Algeria %A Mohamadi, Abderrahim %A Demdoum, Abdeslam %A Bouaicha, Foued %A MENANI, Mohamed Redha %X

The Mio-Plio-Quaternary groundwater of Mchira-Teleghma suffers from an increasing rate of salinity especially in the northwestern part. To identify the reason for the water’s salinity and its aptitude for irrigation, physico-chemical analyses of 20 water samples, which were based on the different physical and chemical parameters (electric conductivity EC, pH, Ca2+, Mg2+, Na+, K+, HCO3, Cl, SO42−, NO3 and Sr2+), were carried out during the period of October 2015. This study showed disquieting anomalies of electric conductivity that reached the value of 4376.14 µS cm−1. The statistical analyses, the multivariate statistics: the principal component analysis, Q-mode cluster analyses, Sr2+/Ca2+ ratio and water type showed that the hydrochemistry of Mchira-Teleghma groundwater is controlled by the dissolution of carbonate rocks and the leaching of evaporite processes, which proved that these anomalies of the MPQ groundwater’s salinity of Mchira-Teleghma are mainly determined by the leaching of Triassic gypsum formations process. This hydrogeochemical process generates an unsuitable quality of water based on Wilcox’s and Water Quality Index’s methods, whereas Richard’s method classifies all water samples to C3S1 and C4S1 classes as they are recommended to be used with salt-tolerant species in well-drained and leached soils.

%B Sustainable Water Resources Management %V 7 %P 1-16 %8 2021 %@ 2363-5045 %G eng %U https://link.springer.com/article/10.1007/s40899-021-00571-3 %0 Journal Article %J Tropical Journal of Pharmaceutical Research %D 2021 %T Evidence of anti-inflammatory and anti-ulcer properties of aerial parts of Centaurea tougourensis Boiss. and Reut %A Bensaad ,Mohamed-Sabri %A Dassamiour, Saliha %A Hambaba, Leila %A Kahoul, Mohamed-Amine %A Benhoula, Mohammed %X

Purpose: To determine the anti-inflammatory and anti-ulcer properties of the aerial parts of Centaurea tougourensis Boiss. & Reut.

 

Methods: The effects of n-butanol (n-BuOH) extract of the aerial part of Centaurea tougourensis on carrageenan-induced paw edema and ethanol-induced gastric mucosal damage were determined at 2 doses (200 and 400 mg/kg, po) in a mouse model. For each test, the animals were randomly divided into negative and positive control groups, as well as extract-treated groups. The mice were observed for any sign of inflammation for a period of 24h.

 

Results: Reduction of paw edema by C. tougourensis extract was highly significant (p < 0.001) at a dose of 400 mg/kg 24 h after carrageenan injection, with 55.26 % inhibition, followed very closely by 53.15 % inhibition at the dose of 200 mg/kg; indomethacin group showed an inhibition of 60 %. Histological examination supported the inhibition results. A significant reduction in inflammation by the extract at a dose of 400 mg/kg was also observed. No sign of ulcer was observed with C. tougourensis at the two doses (200 and 400 mg/kg). The total polyphenol content of the n-BuOH extract was 85.44 цg gallic acid equivalent/mg of extract. Tannins were the most abundant fraction (51.87 цg tannic acid equivalent/mg of extract), followed by flavonoids (25.55 цg quercetin equivalent/mg of extract).

 

Conclusion: The results indicate that C. tougourensis may have potential beneficial effects in the treatment of diseases associated with inflammation and pain, besides its protective effect on the gastrointestinal tract.

%B Tropical Journal of Pharmaceutical Research %V 20 %8 2021 %@ 1596-5996 %G eng %U https://www.ajol.info/index.php/tjpr/article/view/221659 %N 8 %0 Journal Article %J Electronic Journal of Differential Equations %D 2021 %T Existence and blow up in a system of wave equations with nonstandard nonlinearities %A Messaoudi, Salim A %A Bouhoufani, Oulia %A Hamchi, Ilhem %A Alahyane, Mohamed %X

In this article, we consider a coupled system of two nonlinear hyperbolic equations, where the exponents in the damping and source terms are variables. First, we prove a theorem of existence and uniqueness of weak solution, by using the Faedo Galerkin approximations and the Banach fixed point theorem. Then, using the energy method, we show that certain solutions with positive initial energy blow up in finite time. We also give some numerical applications to illustrate our theoretical results.

%B Electronic Journal of Differential Equations %V 91 %P 1–33 %8 2021 %@ 1072-6691 %G eng %U https://ejde.math.txstate.edu/Volumes/2021/91/messaudi.pdf %0 Journal Article %J Mathematical Methods in the Applied Sciences %D 2021 %T On the existence, uniqueness, and new analytic approximate solution of the modified error function in two‐phase Stefan problems %A BOUGOFFA, LAZHAR %A Rach, Randolph C %A MENNOUNI, ABDELAZIZ %X

This paper provides a new proof of the existence and uniqueness of the solution for a nonlinear boundary value problem

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which describes the study of two-phase Stefan problems on the semi-infinite line [0, ). This result considerably extends the analysis of a recent work. A highly accurate analytic approximate solution of this problem is also provided via the Adomian decomposition method.

%B Mathematical Methods in the Applied Sciences %V 44 %P 10948-10956 %8 2021 %@ 0170-4214 %G eng %U https://onlinelibrary.wiley.com/doi/abs/10.1002/mma.7457 %0 Journal Article %J Structural Engineering and Mechanics, An Int'l Journal %D 2021 %T An experimental and numerical analysis of concrete walls exposed to fire %A Baghdadi, Mohamed %A Dimia, Mohamed S %A Guenfoud, Mohamed %A Bouchair, Abdelhamid %X

To evaluate the performance of concrete load bearing walls in a structure under horizontal loads after being exposed to real fire, two steps were followed. In the first step, an experimental study was performed on the thermo-mechanical properties of concrete after heating to temperatures of 200-1000oC with the purpose of determining the residual mechanical properties after cooling. The temperature was increased in line with natural fire curve in an electric furnace. The peak temperature was maintained for a period of 1.5 hour and then allowed to cool gradually in air at room temperature. All specimens were made from calcareous aggregate to be used for determining the residual properties: compressive strength, static and dynamic elasticity modulus by means of UPV test, including the mass loss. The concrete residual compressive strength and elastic modulus values were compared with those calculated from Eurocode and other analytical models from other studies, and were found to be satisfactory. In the second step, experimental analysis results were then implemented into structural numerical analysis to predict the post-fire load-bearing capacity response of the walls under vertical and horizontal loads. The parameters considered in this analysis were the effective height, the thickness of the wall, various support conditions and the residual strength of concrete. The results indicate that fire damage does not significantly affect the lateral capacity and stiffness of reinforced walls for temperature fires up to 400oC.

%B Structural Engineering and Mechanics, An Int'l Journal %V 77 %P 819-830 %8 2021 %G eng %U http://www.techno-press.org/content/?page=article&journal=sem&volume=77&num=6&ordernum=10 %N 6 %0 Journal Article %J Modeling Earth Systems and Environment %D 2021 %T Experimental and numerical simulation of free surface flow over an obstacle on a sloped channel %A Boudjelal, Samia %A Fourar, Ali %A Massouh, Fawaz %X

In the present study, both experimental and numerical were conducted on a free surface flow over an obstacle. Numerical simulations were performed using the Renormalization Group (RNG-k-ɛ) based Reynolds-Averaged Navier–Stokes (RANS) turbulence model coupled with the Volume OF Fluid (VOF) method in FLUENT Software to investigate the effect of the channel slope on the flow pattern upstream, above and downstream the obstacle. Respectively, 5%, 7%, 8%, 10%, 20% and 50% channel slopes were considered. Numerical simulation has showed a good agreement compared against experimental results. Effect of the slope on the flow is observed particularly upstream of the obstacle where the flow takes the vertical direction after hitting the upstream wall. The more the slope becomes steeper, the higher the level of the water is. Recirculation zones in the case of a horizontal channel are elongated downstream the weir, whereas in the case of a sloped channel, they are localized just at the foot of the downstream wall.

%B Modeling Earth Systems and Environment %V 8 %P 1025–1033 %8 2021 %@ 2363-6211 %G eng %U https://link.springer.com/article/10.1007/s40808-021-01137-0 %0 Journal Article %J Geotechnical and Geological Engineering %D 2021 %T Experimental Study of the Effects of Installation of Sand Columns in Compressible Clay Using a Reduced Model %A Laouche, Mohamed %A Karech, Toufik %A Rangeard, Damien %A Martinez, Juan %X

The present study focuses on the investigation of the behaviour of a reduced model of a reinforced soil massif by a sand column tested in the laboratory. These tests involved the installation of sand columns in clay specimens (kaolin) by different methods. The specimens thus obtained are subjected to the same oedometric loading program. The first part of this work aims to study the effect of the intensity of the compaction stress of the sand columns on the surrounding soil and the effect on the behaviour of the soil-column massif. The sand columns were installed with the soil replacement method and with compacting of the columns (WR_WC). Three different compaction stresses were used to install the columns. In the second part, a sand column 20 mm in diameter was installed by two methods: one with replacement of the soil (WR) and without compaction and the other with displacement of the soil (WD). A comparison between the two methods has been established. By determining the equivalent characteristics for the soil-column massif, this study made it possible to characterize the effect of the installation method of the columns on the settlements, the void ratioe of kaolin, the equivalent void ratio eeq of the massif soil-column and on the compressibility parameters of the massif (equivalent compression index Cceq and swelling index Cseq), by comparing the results obtained with those of the unreinforced soils that constitute the reference case. The results obtained showed that the techniques used for the installation of columns have significant effects on the behaviour of reinforced massifs.

%B Geotechnical and Geological Engineering %V 39 %P 2301-2312 %8 2021 %@ 1573-1529 %G eng %U https://link.springer.com/article/10.1007/s10706-020-01626-6 %0 Journal Article %J ROMANIAN REPORTS IN PHYSICS %D 2021 %T FAMILIES OF EXACT SOLITON SOLUTIONS TO THE AB NONLINEAR SYSTEM %A BOUGOFFA, LAZHAR %A MENNOUNI, ABDELAZIZ %A WAZWAZ, ABDUL-MAJID %X

In this paper, the exact solutions to the AB nonlinear system are investigated. This system is reduced via two different transformations to a sine-Gordon equation and a quasilinear equation for a new dependent variable ϕ. Solutions to a sineGordon equation and a quasilinear equation are found. Hence, the original system can well be solved for such ϕ. Also, a similar approach is proposed to solve analytically an eventual extension system for the case of variable coefficients.

%B ROMANIAN REPORTS IN PHYSICS %V 74 %8 2021 %@ 1221-1451 %G eng %U https://rrp.nipne.ro/2022/AN74106.pdf %N 106 %0 Journal Article %J SensorsSensors %D 2021 %T A Fast Firefly Algorithm for Function Optimization: Application to the Control of BLDC Motor %A Bazi, Smail %A Benzid, Redha %A Bazi, Yakoub %A Rahhal, Mohamd Mahmoud Al %B SensorsSensors %V 21 %P 5267 %8 2021 %G eng %0 Conference Proceedings %B International Conference on Advanced Materials Mechanics & Manufacturing %D 2021 %T Fatigue Behavior Study of the Biodegradable Cardiovascular Stent %A Ameddah, Hacene %A Lounansa, Salim %A Mazouz, Hammoudi %X In recent years the development of health science to improve people’s lives and reduce the death rate from cardiovascular disease, researchers have invested in the solution of stents to treat cardiovascular disease. Usually a permanent implant (metal stent) is used to treat a temporary disease, effective on elastic recoil and negative remodeling, but promoting intimate proliferation. This is combated by an active stent, which nevertheless induces chronic inflammation and delayed healing (because of active drugs), with the risk of late thrombosis. The idea of resolution leads to the study of the behavior of temporary stent biodegradable and bioresorbable, once the healing process is completed. The purpose of this study is to reduce the disadvantages of metal stents, to do this; a biodegradable material (polylactic acid) is used. The fatigue behavior of a stent after its placement using geometric parameters selected from clinical cases (diastole and systole). A finite element numerical study in the field of biomaterial fatigue is proposed in order to investigate and understand the biodegradable behavior of the stent. The results of the numerical study show the predicted lifetime of the biodegradable fragrance. %B International Conference on Advanced Materials Mechanics & Manufacturing %I Springer %P 42-48 %8 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-86446-0_6 %0 Journal Article %J Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering ScienceProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science %D 2021 %T Fault prognostics of rolling element bearing based on feature extraction and supervised machine learning: Application to shaft wind turbine gearbox using vibration signal %A Gougam, Fawzi %A Chemseddine, Rahmoune %A Benazzouz, Djamel %A Benaggoune, Khaled %A Zerhouni, Noureddine %B Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering ScienceProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science %V 235 %P 5186-5197 %8 2021 %@ 0954-4062 %G eng %0 Conference Proceedings %B 2021 International Conference on Engineering and Emerging Technologies (ICEET) %D 2021 %T A Fault Tolerant Scheduling Heuristics for Distributed Real Time Embedded System %A Bachir, Malika %A Riadh, Hocine %A Louchene, Nedjoua %A Kalla, Hamoudi %X The integration of a fault tolerance mechanism in critical real-time embedded systems is an important and required property to ensure the continuity of delivering the expected service even in the presence of faults to avoid catastrophic consequences that can be generated in the event of failure of these systems. In this research paper we present a solution to tolerate permanent faults of one processor in heterogeneous distributed real-time embedded systems by using software redundancy solutions based on active and passive replication of dependent tasks in the point-to-point connection. The methodology proposed consists to generate a distribution/scheduling of tasks on hardware architecture and also to tolerate permanent faults of a single processor by executing simultaneously two replicas of a task, the first which ends its execution blocks the second is running. this principle saves very considerable time in distribution/scheduling length with and without errors. %B 2021 International Conference on Engineering and Emerging Technologies (ICEET) %I IEEE %C Istanbul, Turkey %P 1-6 %8 2021 %@ 1-66542-714-0 %G eng %U https://ieeexplore.ieee.org/document/9659712 %0 Book Section %B Research Anthology on Architectures, Frameworks, and Integration Strategies for Distributed and Cloud Computing %D 2021 %T A fault-tolerant scheduling algorithm based on checkpointing and redundancy for distributed real-time systems %A Barkahoum Kada %A Kalla, Hamoudi %B Research Anthology on Architectures, Frameworks, and Integration Strategies for Distributed and Cloud Computing %I IGI Global %P 770-788 %8 2021 %G eng %0 Journal Article %J Batna J Med SciBatna J Med Sci %D 2021 %T Faut-il ne plus traiter les cancers de la prostate localisés du groupe favorable ? %A Hamizi, Kamel %A Aouidane, Souad %X Contrairement à l’abstention-surveillance, la surveillance active est une modalité de prise en charge curative. Elle vise à retarder le traitement d’une tumeur peu agressive jusqu’au moment où elle le deviendra tout en restant dans la fenêtre de curabilité de la maladie. À travers une lecture de littératures, nous allons essayer de maitre la lumière sur la place et les modalités de la surveillance active, dans les groupes favorables des cancers de la prostate et de répondre aux questions suivantes : Pourquoi la surveillance active ? Pour qui ? Comment l’instauré ? et quand doit-on l’arrêter ? La majorité des essais, cliniques publiés s’accordent à dire, que la surveillance active est une attitude parfaitement adaptée aux patients du groupe favorable d’AMICO, voire même une partie du groupe intermédiaire bas risque. Les résultats en matière de survie globale et d’évènement métastatiques, sont similaires à ceux des patients traités d’emblée par chirurgie et ou radiothérapie, avec en plus moins de toxicité. La surveillance est basée essentiellement sur le dosage périodique du PSA, rebiopsie selon des protocoles propres à chaque équipe. La décision du passage aux traitements invasifs, sera conditionnée par la progression du score Gleason, selon des algorithmes dont certains, sont déjà validés à l’international. La surveillance active, doit faire partie intégrante des décisions de prise en charge des adénocarcinomes prostatiques localisés favorables. Cette attitude nous permet, d’éviter de surtraiter un grand nombre, de petites lésions non évolutives, tout en ayant la possibilité et les moyens, de rattraper les lésions qui progressent. %B Batna J Med SciBatna J Med Sci %V 8 %P 157-61 %8 2021 %G eng %0 Conference Proceedings %B 2021 International Conference on Artificial Intelligence for Cyber Security Systems and Privacy (AI-CSP) %D 2021 %T Fine-tuned Xception for Image Classification on Tiny ImageNet %A Benbrahim, Hayet %A Behloul, Ali %X Image classification has been one of the most widely topic in artificial intelligence, deep models need larger datasets and powerful hardware to improve the highperformance classification. ImageNet Challenge was started in 2010 to classify 100,000 test images into 1000 different classes. Tiny ImageNet challenge is similar to ImageNet challenge, where images are taken from the standard ImageNet and resized to be 64x64. In this paper a fine-tuned Xception to classify images into the 200 classes is presented using the standard Tiny ImageNet dataset, the down-sampling (64x64) of images and the low similarity inter-class makes feature extraction and classification difficult and more challenging. We used a transfer learning algorithm to fine-tune the Xception architecture using the Extreme version of the Inception module to achieve a high validation accuracy of 65.14%. %B 2021 International Conference on Artificial Intelligence for Cyber Security Systems and Privacy (AI-CSP) %I IEEE %C El Oued, Algeria %P 1-4 %8 2021 %@ 1-66546-714-2 %G eng %U Fine-tuned Xception for Image Classification on Tiny ImageNet %0 Journal Article %J European journal of pharmacologyEuropean journal of pharmacology %D 2021 %T Flavonols as potential antiviral drugs targeting SARS-CoV-2 proteases (3CLpro and PLpro), spike protein, RNA-dependent RNA polymerase (RdRp) and angiotensin-converting enzyme II receptor (ACE2) %A Mouffouk, Chaima %A Mouffouk, Soumia %A Mouffouk, Sara %A Hambaba, Leila %A Haba, Hamada %X

The novel coronavirus outbreak (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) represents the actual greatest global public health crisis. The lack of efficacious drugs and vaccines against this viral infection created a challenge for scientific researchers in order to find effective solutions. One of the promising therapeutic approaches is the search for bioactive molecules with few side effects that display antiviral properties in natural sources like medicinal plants and vegetables. Several computational and experimental studies indicated that flavonoids especially flavonols and their derivatives constitute effective viral enzyme inhibitors and possess interesting antiviral activities. In this context, the present study reviews the efficacy of many dietary flavonols as potential antiviral drugs targeting the SARS-CoV-2 enzymes and proteins including Chymotrypsin-Like Protease (3CLpro), Papain Like protease (PLpro), Spike protein (S protein) and RNA-dependent RNA polymerase (RdRp), and also their ability to interact with the angiotensin-converting enzyme II (ACE2) receptor. The relationship between flavonol structures and their SARS-CoV-2 antiviral effects were discussed. On the other hand, the immunomodulatory, the anti-inflammatory and the antiviral effects of secondary metabolites from this class of flavonoids were reported. Also, their bioavailability limitations and toxicity were predicted.

%B European journal of pharmacologyEuropean journal of pharmacology %V 891 %P 173759 %8 2021 %@ 0014-2999 %G eng %U https://pubmed.ncbi.nlm.nih.gov/33249077/ %0 Journal Article %J An. Univ. Din Oradea Ser. GeogrAn. Univ. Din Oradea Ser. Geogr %D 2021 %T Flood hazard in the city of chemora (algeria) %A Guellouh, Sami %A ABDELWAHHAB FILALI %A Habibi, Yahyaoui %A Fateh, Abdelghani %X

Floods become major concerns in most gobe regions due to socio-economic and environmental consequences caused by these phenomena in recent decades. Most Algerian cities are exposed to flood risks and suffered from its consequences. The purpose of this paper is the spatialization of flood hazard in the city of Chemora (Algeria) by hydraulic modelling in a GIS environment whose objective is prevention, which requires a set of hydrological and hydraulic informations in order to achieve a comprehensive and effective management.

%B An. Univ. Din Oradea Ser. GeogrAn. Univ. Din Oradea Ser. Geogr %V 31 %P 22-27 %8 2021 %G eng %U https://istgeorelint.uoradea.ro/Reviste/Anale/Art/2021-1/auog.311103-835.pdf %0 Conference Paper %B Defect and Diffusion Forum %D 2021 %T Food’s Conservation into 03 Dimension’s Models of Cold Stores Operated by 03 Refrigeration Systems in Biskra Region (Classic, Absorption, Adsorption) %A Benlouanas, Kamel %A Serir, Lazhar %X As renewable energy elucidation, the solar refrigeration of fruits such as date palm is a storage alternate to preserve food in healthy parameters of conditioning. This statistical and numeric study investigates the energy gain cost case around the diverse dimensions’ models of positive cold stores (02, 04, and 06 cold rooms), concerning energetic disparity and numerous financial fluctuations of the applied systems. The results of computation and analysis regarding panels of construction, equipment, consumption, and maintenance for classic, absorption, and adsorption refrigeration systems that conserve dates palm into these three cold stores. In the end, the comparison of technical and economic elements in tables and figures by enumerating their advantages and inconveniences. Classic Bitzer, Absorption WFC SC 5, and Adsorption AG ACS 15 and 08 are models in which their evaluation is relating to their costs. In Biskra, these results mean that adsorption chiller termed AG ACS (15 plus 08) is illustrious by its parameters of simplicity, lifespan, safety, and security, valued to 1147.5 €/m² and median cost up ten years of using is 92972 € %B Defect and Diffusion Forum %I Trans Tech Publ %V 406 %P 182-191 %8 2021 %@ 3-0357-1736-2 %G eng %0 Journal Article %J Journal of King Saud University-Computer and Information SciencesJournal of King Saud University-Computer and Information Sciences %D 2021 %T A framework for spectrum harvesting in heterogeneous wireless networks integration %A Samir Gourdache %A Azeddine Bilami %A Kamel Barka %X

Today’s, and near future, communication networks rely heavily on capacity expansion to keep pace with the massive number of mobile devices and ever-increasing mobile traffic. This expansion can be achieved through three major ingredients, namely, adding more wireless-spectrum, efficient usage of this spectrum, and adequate networks’ architectures. In this paper, a proposition for integrating these three ingredients in a cognitive-radio-inspired framework is presented. The focus is on the integration of the idle spectrum resources of different wireless networks into a single mobile heterogeneous wireless network. This framework is based on a conceptual network-architecture articulated with a generic and cooperative spectrum-harvesting scheme. The former brings the necessary agility for such heterogeneous environments, the latter keeps the network supplied with the vital spectrum resources. In our proposal, we make use of cross-correlated sequences (CCSs) for context-aware events’ signaling purposes. This choice is motivated by the particularly interesting characteristics of CCSs, namely, duration shortness, robustness to bad radio conditions, detection rather than decoding, and low probability of collision. As an illustration, we propose a reporting and detection scheme, in the context of OFDMA systems, and provide performance results from simulations to validate our proposal.

%B Journal of King Saud University-Computer and Information SciencesJournal of King Saud University-Computer and Information Sciences %V 33 %P 281-290 %8 2021 %@ 1319-1578 %G eng %U https://www.sciencedirect.com/science/article/pii/S131915781830733X#:~:text=The%20harvesting%20scheme%20involves%20both,the%20signaling%20is%20not%20sufficient. %N 3 %0 Conference Proceedings %B 2021 9th International Conference on Smart Grid (icSmartGrid) %D 2021 %T Fuzzy High Order Sliding Mode Control Based DPC of DFIG using SVM %A Mazouz, Farida %A Sebti, Belkacem %A Colak, Ilhami %X The direct power control of the doubly fed induction generator using conventional controllers is characterized by unsatisfactory performance: high ripples of stator powers and sensitivity to parametric variations. Among the most evoked control strategies adopted in this field to overcome these drawbacks presented in classical drive, it is worth mentioning the use of the higher law sliding mode developed on the super twisting algorithm associated with the fuzzy logic control in order to realize optimal command performance, Finally, the efficiency of the envisaged control scheme, is investigated against. The proposed regulation scheme is efficient in reducing the powers ripples; successfully suppress chatter and the effects of parametric variations that do not affect the performance of the regulation. %B 2021 9th International Conference on Smart Grid (icSmartGrid) %I IEEE %C Setubal, Portugal %P 278-282 %8 2021 %@ 1-66544-531-9 %G eng %U https://ieeexplore.ieee.org/abstract/document/9551262 %0 Journal Article %J International Journal of Electrical and Computer Engineering (IJECE) %D 2021 %T Fuzzy super twisting algorithm dual direct torque control of doubly fed induction machine %A Boumaraf, Farid %A BOUTABBA, Tarek %A Sebti Belkacem %X

This paper proposes the fundamental aspects of hybrid nonlinear control which is composed of the super twisting algorithm (STA) based second order sliding mode control applying fuzzy logic method (FSOSMC), with pertinent simulation results for a doubly fed induction machine (DFIM) drive. To minimize chattering effect phenomenon due to Signum function employed in sliding mode algorithm, a new method is proposed. This technique consists in replacing the signum function by fuzzy switching function in the SOSMC to minimize flux and torque ripples. This FSOSMC is associated to the double direct torque control DDTC of the doubly fed induction machine (DFIM) by combining the advantages of fuzzy logic (FL) and the advantages of super-twisting sliding mode. The FSOSMC-DDTC strategy is compared with a PI-DDTC and SOSMC-DDTC. Simulation results demonstrate good efficiency and excellent robustness of the hybrid nonlinear controller.

%B International Journal of Electrical and Computer Engineering (IJECE) %V 11 %P 3782-3790 %8 2021 %G eng %U https://ijece.iaescore.com/index.php/IJECE/article/view/25244 %0 Journal Article %J Entropy %D 2021 %T Generating multidirectional variable hidden attractors via newly commensurate and incommensurate non-equilibrium fractional-order chaotic systems %A Debbouche, Nadjette %A MOMANI, SHAHER %A Ouannas, Adel %A Shatnawi, ’Mohd Taib’ %A Grassi, Giuseppe %A Zohir Dibi %A Batiha, Iqbal M %X

This article investigates a non-equilibrium chaotic system in view of commensurate and incommensurate fractional orders and with only one signum function. By varying some values of the fractional-order derivative together with some parameter values of the proposed system, different dynamical behaviors of the system are explored and discussed via several numerical simulations. This system displays complex hidden dynamics such as inversion property, chaotic bursting oscillation, multistabilty, and coexisting attractors. Besides, by means of adapting certain controlled constants, it is shown that this system possesses a three-variable offset boosting system. In conformity with the performed simulations, it also turns out that the resultant hidden attractors can be distributively ordered in a grid of three dimensions, a lattice of two dimensions, a line of one dimension, and even arbitrariness in the phase space. Through considering the Caputo fractional-order operator in all performed simulations, phase portraits in two- and three-dimensional projections, Lyapunov exponents, and the bifurcation diagrams are numerically reported in this work as beneficial exit results.

%B Entropy %V 23 %P 261 %8 2021 %@ 1099-4300 %G eng %U https://www.mdpi.com/1099-4300/23/3/261 %N 1 %0 Journal Article %J Journal of Chemometrics %D 2021 %T Genetic robust kernel sample selection for chemometric data analysis %A Fouzi Douak %A Ghoggali, Noureddine %A Hedjam, Rachid %A Mekhalfi, Mohamed Lamine %A Nabil Benoudjit %A Farid Melgani %X

In this work, we propose a new algorithm to improve existing techniques used in the field of spectroscopic data regression analysis. In particular, it combines the power of nonlinear kernel regressors (kernel ridge regression [KRR], kernel principal component regression [KPCR], and Gaussian process regression [GPR]) with an optimization based on nondominated sorting multi-objective genetic algorithm (NSGAII) to filter the residual outliers in the prediction space and leverage points in the features space. The proposed algorithm, contrary to most existing robust algorithms, simultaneously optimizes many complementary objectives for an automatic adaptation and thus a better outliers detection. It is well known that the elimination of outliers greatly improves the regression model. It is thus the aim of this work to develop a new robust regression algorithm. It has been applied on five different datasets, and the results are compared to both classical nonlinear regression methods and the commonly used robust regression methods robust continuum regression (RCR), partial robust M-regression (PRM), robust principal component regression (RPCR), robust PLSR (RSIMPLS), and locally weighted regression (LWR). They show that the proposed algorithm outperforms the classical nonlinear regression methods and is a promising competitor to the robust methods outperforming most of them. Even though the results obtained are only from five datasets, this algorithm can be considered an interesting contribution for improving data analysis in the field of chemometrics.

%B Journal of Chemometrics %V 35 %8 2021 %@ 0886-9383 %G eng %U https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1002/cem.3344 %N 6 %0 Journal Article %J Microbial genomicsMicrobial genomics %D 2021 %T Genomic epidemiology of the first epidemic wave of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Palestine %A Qutob, Nouar %A Salah, Zaidoun %A Richard, Damien %A Darwish, Hisham %A Sallam, Husam %A Shtayeh, Issa %A Najjar, Osama %A Ruzayqat, Mahmoud %A Najjar, Dana %A Balloux, François %B Microbial genomicsMicrobial genomics %V 7 %8 2021 %G eng %0 Journal Article %J Emerging infectious diseasesEmerging infectious diseases %D 2021 %T Geographic range of recreational water–associated primary amebic meningoencephalitis, United States, 1978–2018 %A Gharpure, Radhika %A Gleason, Michelle %A Salah, Zainab %A Blackstock, Anna J %A Hess-Homeier, David %A Yoder, Jonathan S %A Ali, Ibne Karim M %A Collier, Sarah A %A Cope, Jennifer R %B Emerging infectious diseasesEmerging infectious diseases %V 27 %P 271 %8 2021 %G eng %0 Conference Proceedings %B SMACD/PRIME 2021; International Conference on SMACD and 16th Conference on PRIME %D 2021 %T Germanium–InGaZnO heterostructured thinfilm phototransistor with high IR photoresponse %A Ferhati, Hichem %A Djeffal, Faycal %A Bendjerad, Adel %X In this paper, the role of introducing Germanium (Ge)/IGZO heterostructure in enhancing the Infrared (IR) photodetection properties of thin-film phototransistor (Photo- TFT) is presented. Numerical models for the investigated device are developed using ATLAS device simulator. The influence of Ge photosensitive layer thickness on the sensor IR photoresponse is carried out. It is revealed that the optimized IR Photo-TFT based on p-Ge/IGZO heterojunction can offer improved IR responsivity of 4.1×10(exp2) A/W, and over 10(exp6) of sensitivity. These improvements are attributed to the role of the introduced p-Ge/IGZO heterostructure in promoting IR photodetection ability and improved separation and transfer mechanisms of photo-exited electron/hole pairs. The photosensor is then implemented in an optical inverter gate circuit in order to assess its switching capabilities. It is found that the proposed phototransistor shows an improved optical gain thus indicating its excellent performance. Therefore, providing high IR responsivity and low dark noise effects, the optimized Ge/IGZO IR Photo-TFT can be a potential alternative photosensor for designing optoelectronic systems with high-performance and ultralow power consumption. %B SMACD/PRIME 2021; International Conference on SMACD and 16th Conference on PRIME %I VDE %C online %P 1-4 %8 2021 %@ 3-8007-5588-2 %G eng %U https://ieeexplore.ieee.org/abstract/document/9547977 %0 Journal Article %J World Journal of Science, Technology and Sustainable Development %D 2021 %T Global and local sensitivity analysis of the Emission Dispersion Model input parameters %A Chettouh, Samia %X

Purpose

The objectives of this paper are the application of sensitivity analysis (SA) methods in atmospheric dispersion modeling to the emission dispersion model (EDM) to study the prediction of atmospheric dispersion of NO2 generated by an industrial fire, whose results are useful for fire safety applications. The EDM is used to predict the level concentration of nitrogen dioxide (NO2) emitted by an industrial fire in a plant located in an industrial region site in Algeria.

Design/methodology/approach

The SA was defined for the following input parameters: wind speed, NO2 emission rate and viscosity and diffusivity coefficients by simulating the air quality impacts of fire on an industrial area. Two SA methods are used: a local SA by using a one at a time technique and a global SA, for which correlation analysis was conducted on the EDM using the standardized regression coefficient.

Findings

The study demonstrates that, under ordinary weather conditions and for the fields near to the fire, the NO2 initial concentration has the most influence on the predicted NO2 levels than any other model input. Whereas, for the far field, the initial concentration and the wind speed have the most impact on the NO2 concentration estimation.

Originality/value

The study shows that an effective decision-making process should not be only based on the mean values, but it should, in particular, consider the upper bound plume concentration.

%B World Journal of Science, Technology and Sustainable Development %8 2021 %@ 2042-5945 %G eng %U https://www.emerald.com/insight/content/doi/10.1108/WJSTSD-12-2020-0102/full/html %0 Journal Article %J Knowledge and Information Systems %D 2021 %T GrAFCI+ A fast generator-based algorithm for mining frequent closed itemsets %A Ledmi, Makhlouf %A Samir Zidat %A Hamdi-Cherif, Aboubekeur %X

Mining itemsets for association rule generation is a fundamental data mining task originally stemming from the traditional market basket analysis problem. However, enumerating all frequent itemsets, especially in a dense dataset, or with low support thresholds, remains costly. In this paper, a novel theorem builds the relationship between frequent closed itemsets (FCIs) and frequent generator itemsets (FGIs) and proves that the process of mining FCIs is equivalent to mining FGIs, unified with their full-support and extension items. On the basis of this theorem, a generator-based algorithm for mining FCIs, called GrAFCI+, is proposed and explained in details including its correctness. The comparative effectiveness of the algorithm in terms of scalability is first investigated, along with the compression rate—a measure of the interestingness of a given FIs representation. Extensive experiments are further undertaken on eight datasets and four state-of-the-art algorithms, namely DCI_CLOSED*, DCI_PLUS, FPClose, and NAFCP. The results show that the proposed algorithm is more efficient regarding the execution time in most cases as compared to these algorithms. Because GrAFCI+ main goal is to address the runtime issue, it paid a memory cost, especially when the support is too small. However, this cost is not high since GrAFCI+ is seconded by only one competitor out of four in memory utilization and for large support values. As an overall assessment, GrAFCI+ gives better results than most of its competitors.

%B Knowledge and Information Systems %V 63 %P 1873-1908 %8 2021 %@ 0219-3116 %G eng %U https://link.springer.com/article/10.1007/s10115-021-01575-3 %0 Journal Article %J Iranian Journal of Ichthyology (IJI) %D 2021 %T Growth and reproduction of two cichlids Tilapia zillii and Hemichromis bimaculatus (Teleostei: Cichliformes) in the Saharan hydrosystems (Algeria) %A Cherif Ghazi %A Abdelkrim Si Bachir %X

In this  study, we have studied the length-weight relationship, condition factor (Kr), gonado-somatic index (GSI) and size at first maturity of two Cichlidae species (Tilapia zillii and Hemichromis bimaculatus) from two lakes (Megarine and Temacine) of the northern Sahara (Algeria). Some 159 specimens of H. bimaculatus and 52 T. zillii were sampled between September 2012 and July 2013. The length-weight relationship revealed an isometric value b (3.0) for H. bimaculatus from Lake Megarine, while there was no significant difference for T. zillii from Lake Temacine. We noted a negative allometric growth pattern (b<3) of males and females of H. bimaculatus. Both sexes of T. zillii grew isometrically. The Kr did not differ significantly between months for the two studied species. It was less than 1 only in November and July for H. bimaculatus. For T. zillii, the monthly mean of Kr was always greater than 1 for all the studied period. The first sexual maturity of 50% of males was observed at 52.75mm in H. bimaculatus and 61mm in T. zillii. The smallest mature female had a total length of 60.26mm and 66mm for H. bimaculatus and T. zillii respectively. The reproduction period of H. bimaculatus and T. zillii begins in March with an extended spawning period. The overall sex ratio was in favor of females (1: 0.7) in H. bimaculatus, and in favor of males in T. zillii (1: 1.33). For both species, the sex ratio varied according to months and size classes.

%B Iranian Journal of Ichthyology (IJI) %V 8 %P 322-333 %8 2021 %G eng %U https://ijichthyol.org/index.php/iji/article/view/688 %N 4 %0 Journal Article %J GeoJournal %D 2021 %T Health geo-governance to assess the vulnerability of Batna, Algeria to COVID-19: the role of GIS in the fight against a pandemic %A Kalla, Mohammed-Issam %A Belkacem Lahmar %A Sami Geullouh %A Mahdi KALLA %X

The health systems in many countries are still unable to control the evolution and persistence of the COVID-19 pandemic despite the large mobilisation of national resources. International attention has focussed on finding a cure, and preventive measures and national and international strategies to be adopted and implemented with regard to other future pandemics have been neglected despite their predictability and high probability of occurrence. This work aims to anticipate a reading on experience feedback in light of the current pandemic situation, and to identify the main spatial elements of vulnerability in Batna, Algeria, which seems to control the ability of an urban area to prevent the spread of the COVID-19 virus. We used a digital model based on a multi-criteria approach implemented in a geo-decisional GIS database to serve as a decision support tool for dealing with an epidemiological situation as a preventive or curative action. The results from the model seem to adequately reflect the reality of confirmed incidents in Batna. In addition, the results of the analysis of the spatiotemporal evolution of the virus clearly confirm that the urban sectors characterised by high vulnerability are those that have recorded an increasing number of confirmed COVID-19 incidents since the start of the epidemic until December 2020.

%B GeoJournal %V 78 %P 3607–3620 %8 2021 %@ 1572-9893 %G eng %U https://link.springer.com/article/10.1007/s10708-021-10449-8 %0 Journal Article %J University of Niš publishes Facta Universitatis journal %D 2021 %T HERIMITIAN SOLUTIONS TO THE EQUATION AXA+ BY B= C, FOR HILBERT SPACE OPERATORS %A Amina Boussaid %A Farida Lombarkia %X

Let A, A_{1},  A_{2}, B, B_{1}, B_{2}, C_{1} and C_{2} be linear bounded operators on Hilbert spaces. In this paper, by using generalized inverses, we establish necessary and sufficient conditions for the existence of a common solution and give the form of the general common solution of the operator equations A_{1}XB_{1}=C_{1} and A_{2}XB_{2}=C_{2}, we apply this result to determine new necessary and sufficient conditions for the existence of Hermitian solutions  and give the form of the general Hermitian solution to the operator equation AXB=C. As a consequence, we give necessary and sufficient condition for the existence of Hermitian solution to the operator equation AXA^{*}+BYB^{*}=C.

%B University of Niš publishes Facta Universitatis journal %V 36 %8 2021 %G eng %U http://casopisi.junis.ni.ac.rs/index.php/FUMathInf/article/view/5843 %N 1 %0 Journal Article %J International Journal of Sensor Networks %D 2021 %T Heuristically accelerated reinforcement learning for channel assignment in wireless sensor networks %A Sahraoui, Mohamed %A Azeddine Bilami %A Taleb-Ahmed, Abdelmalik %X

In wireless sensor networks (WSNs), multi-channel communication represents an attractive field due to its advantage in improving throughput and delivery rate. However, the major challenge that faces WSNs is the energy constraint. To overcome the channel assignment problem in an energy-efficient way, reinforcement learning (RL) approach is used. Though, RL requires several iterations to obtain the best solution, creating a communication overhead and time-wasting. In this paper, a heuristically accelerated reinforcement learning approach for channel assignment (HARL CA) in WSNs is proposed to reduce the learning iterations. The proposal considers the selected channel by the neighboring sender nodes as external information, used to accelerate the learning process and to avoid collisions, while the bandwidth of the used channel is regarded as an important factor in the scheduling process to increase the delivery rate. The results of extensive simulation experiments show the effectiveness of our approach in improving the network lifetime and performance.

%B International Journal of Sensor Networks %V 37 %P 159-170 %8 2021 %@ 1748-1279 %G eng %U https://www.inderscience.com/info/inarticle.php?artid=118877 %0 Journal Article %J Computing %D 2021 %T A hierarchical formal method for performance evaluation of WSNs protocol %A Zroug, Siham %A KAHLOUL, Laid %A BENHARZALLAH, Saber %A Djouani, Karim %X

The design and the evaluation of communication protocols in WSNs is a crucial issue. Generally, researchers use simulation methods to evaluate them. However, formal modelling and analysis techniques are an efficient alternative to simulation methods. Indeed, these techniques allow performance evaluation and model verification. In this paper, a formal approach is proposed to modelling and to evaluating the Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) MAC protocol with a star topology. Moreover, the proposed approach deals with some properties that are not stated in most existing works. The approach uses Hierarchical Timed Coloured Petri Nets (HTCPNs) formalism to model the protocol and exploits the CPN-Tools to analyse the generated models. HTCPNs provide timed aspect which facilitates the consideration of time constraints inherent to the CSMA/CA protocol.

%B Computing %V 103 %P 1183-1208 %8 2021 %@ 1436-5057 %G eng %U https://link.springer.com/article/10.1007/s00607-020-00898-3 %0 Journal Article %J Avian Biology Research %D 2021 %T How food supply in rubbish dumps affects the breeding success and offspring mortality of cattle Egret Bubulcus ibis? %A Gherbi-Salmi, Rachida %A SI-BACHIR, Abdelkrim %A Cherif Ghazi %A DOUMANDJI, Salaheddine %X

The objective of this study was to evaluate the effect of food supply in garbage dumps on the reproductive fitness of Cattle Egret Bubulcus ibis and offspring losses. A total of 236 nests were monitored during two distinct periods of 2 years for each: 146 nests during a period without food supply in dumps (1998–1999) and 90 with food supply in dumps (2007–2008). The study was carried out in the colony of El-Kseur in the Lower Soummam Valley (northeast Algeria). For the entire study period, the mean of clutch size, average number of hatched chicks, productivity, and breeding success varied significantly between years (Kruskal–Wallis test: p < .05). Also, the average calculated losses for eggs, chicks, and total offspring vary significantly (Chi2 test: p > .0001). The clutch size and the number of hatched chicks per nest were highest during the period with food supply in garbage dump (respectively: 3.46 ± 0.86; 2.85 ± 1.11), compared to the period when cattle egrets feed in natural or agricultural habitats (3.04 ± 0.87; 2.54 ± 1.03). However, productivity and breeding success were highest during the period without food supply (respectively: 2.11 ± 1.16 fledging’s/nest; 0.70 ± 0.35) than in the period with food supply (1.14 ± 0.91; 0.35 ± 0.30). While egg losses were substantially similar between the two study periods, chick’s mortality (59.9%) and total offspring losses (36.7%) were higher during the period with food supply. The generalized linear mixed model (GLMM) analysis indicated a large negative effect of food supply in dumps on the productivity, on the chick’s losses; and a positive effect on the total offspring losses (p < .001). Also, feed in dump garbage revealed a significant negative effect on the breeding success linear mixed model (LMM, p = .01). However, no significant effects (GLMM, p > .05) of food supply in dumps were noted on average clutch size, the mean number of hatched chicks per nest, and egg losses.

%B Avian Biology Research %V 15 %8 2021 %@ 1758-1559 %G eng %U https://doi.org/10.1177/17581559211066090 %N 1 %0 Journal Article %J International journal %D 2021 %T HPLC-DAD phenolics screening and in vitro investigation of haemostatic, antidiabetic, antioxidant and photoprotective properties of Centaurea tougourensis Boiss. & Reut. %A Bensaad, Mohamed Sabri %A Dassamiour, Saliha %A Hambaba, Leila %A Chawki Bensouici %A KARIMA, OUFFROUKH %A Kahoul, Mohamed Amine %X

Introduction: Traditional medicine has an important place in human history and this since antiquity. Indeed, during Egyptian and Chinese civilization era, many detailed manuscripts, describing the therapeutic effect of plants, were found which suggest that folk medicine is the basis of the actual medicine. Objective: To investigate the phytochemical and pharmacological properties of the n-butanol (n-BuOH) and ethyl acetate (EA) extracts of the aerial part of Centaurea tougourensis. Methods: The phytochemical evaluation was done based on HPLC-DAD approach. The antioxidant activity was determined by DPPH and cupric ion reducing antioxidant capacity (CUPRAC), while the hemostatic effect was performed using plasma recalcification time (PRT) method. The antidiabetic capacity was investigated by alpha-amylase inhibition assay and the photoprotective test was evaluated by the measurement of sun protection factor (SPF). Results: 13 phenolic compounds were identified in both extracts of C. tougourensis. These extracts showed antioxidant, haemostatic, antidiabetic and photoprotective properties with a dose-dependent manner. Amounts of n-BuOH activities were found higher, with a respective IC50 value of 0.72±0.07 μg/ml in DPPH assay, an A0.50 value lower than 3.125 μg/ml in CUPRAC assay besides a shortening rate percentage of coagulation (86.71%) in haemostatic assay, a moderate inhibition effect on alpha amylase activity with an IC50 value of (711.5±0.03 μg/ml) and a maximum sun protection factor of (56.035). These results were mostly found highly significant (p<0.001) when compared to respective standards. Conclusion: This study demonstrated some pharmacological effects of C. tougourensis which suggests that our plant could be a good candidate to treat some illnesses related to oxidative stress, bleeding or skin cancer.

%B International journal %V 67 %8 2021 %G eng %U https://herbapolonica.pl/resources/html/article/details?id=235397&language=en %N 7 %0 Journal Article %J BizInfo (Blace) Journal of Economics, Management and Informatics %D 2021 %T A Hybrid Methodology based on heuristic algorithms for a production distribution system with routing decisions %A Bensakhria, Mohamed %A Samir Abdelhamid %X

In this paper, we address the integration of a two-level supply chain with multiple items. This two-level production-distribution system features a capacitated production facility supplying several retailers located in the same region. If production does occur, this process incurs a fixed setup cost and unit production costs. Besides, deliveries are made from the plant to the retailers by a limited number of capacitated vehicles, routing costs incurred. This work aims to implement a minimization solution that reduces the total costs in both the production facility and retailers. The methodology adopted based on a hybrid heuristic, greedy and genetic algorithm uses strong formulation to provide a suitable solution of a guaranteed quality that is as good or better than those provided by the MIP optimizer. The results demonstrate that the proposed heuristics are effective and performs impressively in terms of computational efficiency and solution quality.

%B BizInfo (Blace) Journal of Economics, Management and Informatics %V 12 %P 1-22 %8 2021 %@ 2217-2769 %G eng %U https://scindeks.ceon.rs/Article.aspx?artid=2217-27692102001B %0 Journal Article %J Fractals %D 2021 %T HYPERCHAOTIC DYNAMICS OF A NEW FRACTIONAL DISCRETE-TIME SYSTEM %A KHENNAOUI, AMINA-AICHA %A Ouannas, Adel %A MOMANI, SHAHER %A Zohir Dibi %A Grassi, Giuseppe %A BALEANU, DUMITRU %A Pham, Viet-Thanh %X

In recent years, some efforts have been devoted to nonlinear dynamics of fractional discrete-time systems. A number of papers have so far discussed results related to the presence of chaos in fractional maps. However, less results have been published to date regarding the presence of hyperchaos in fractional discrete-time systems. This paper aims to bridge the gap by introducing a new three-dimensional fractional map that shows, for the first time, complex hyperchaotic behaviors. A detailed analysis of the map dynamics is conducted via computation of Lyapunov exponents, bifurcation diagrams, phase portraits, approximated entropy and Co complexity. Simulation results confirm the effectiveness of the approach illustrated herein.

%B Fractals %V 29 %8 2021 %@ 0218-348X %G eng %U https://doi.org/10.1142/S0218348X2140034X %N 8 %0 Journal Article %J Integration %D 2021 %T Hyperchaotic fractional Grassi–Miller map and its hardware implementation %A Ouannas, Adel %A KHENNAOUI, AMINA-AICHA %A Oussaeif, Taki-Eddine %A Pham, Viet-Thanh %A Grassi, Giuseppe %A Zohir Dibi %X

Most of the papers published so far on fractional discrete systems are related to theoretical results on their chaotic behaviors or to applications based on the mathematical modeling of the chaotic phenomena. No paper has been published to date regarding the hardware implementation of hyperchaotic fractional maps. This manuscript makes a contribution to the topic by presenting the first example of hardware implementation of hyperchaotic fractional maps. In particular, by exploiting the Grunwald–Letnikov difference operator, the paper introduces a new version of the fractional Grassi–Miller map. The system dynamics are analyzed via bifurcation diagrams and Lyapunov exponents, showing that the conceived map is hyperchaotic when the fractional order � belongs to the interval [0.966,1]. Finally, a hardware implementation of the fractional map is illustrated, with the aim to concretely highlight the presence of hyperchaos in physical systems described by fractional difference equations. Arduino, an open-source platform, has been used to illustrate the simplicity as well as the feasibility of the implementation.

%B Integration %V 80 %P 13-19 %8 2021 %@ 0167-9260 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S0167926021000584 %0 Journal Article %J International Journal of Nanoelectronics & Materials %D 2021 %T Impact of Dielectric Engineering on Analog/RF and Linearity Performance of Double Gate Tunnel FET %A Naima, Guenifi %A Rahi, Shiromani Balmukund %A Boussahla, G %X

Tunnel FETisone of thealternativedevicefor low power electronics having steep subthreshold swing and lower leakage current than conventional MOSFET. In this research work, we have implemented the idea of high -k gate dielectric ondouble gate Tunnel FET, DG-TFETfor improvement of device features.An extensive investigation for the analog/RF and linearity feature of DG-TFET has been donehere for low power circuit and system development.Several essential analog/RF and linearity parameters like transconductance(gm), transconductance generation factor (gm/IDS) its high-order derivatives (gm2, gm3), cut-off frequency (fT), gain band width product (GBW), transconductance generation factor (gm/IDS) has been investigated for low power RF applications.The VIP2, VIP3, IMD3, IIP3, distortion characteristics (HD2, HD3), 1- dB the compression point, delay and power delay product performancehave also been throughly studied.It has been observed that the device features discussed for circuitry applications are found to be sensitiveto of gate materials, design configuration and input signals.

%B International Journal of Nanoelectronics & Materials %V 14 %8 2021 %@ 1985-5761 %G eng %U https://ijneam.unimap.edu.my/images/PDF/ijneam%20july%202021%20pdf/IJNEAM2021012%20Accepted.pdf %0 Conference Proceedings %B 2021 International Conference on Control, Automation and Diagnosis (ICCAD) %D 2021 %T Implementation of Super-twisting control with Photovoltaic System Emulator %A Mechnane, F %A Drid, S %A Sahraoui, H %A Benlaloui, I %A Boutabba, T %A Nait-Said, N %A Chrifi-Alaoui, L %X This paper focuses on the efficient control of a photovoltaic device's voltage. Under irradiation variation and constant load, a robust controller is proposed. The second-order sliding mode controller for buck converter based on super twisting algorithm is designed to ensure both the reliability and robustness of the global system. The proposed control strategy's reliability is demonstrated by experimental results using dSpace 1104. %B 2021 International Conference on Control, Automation and Diagnosis (ICCAD) %I IEEE %P 1-4 %8 2021 %@ 1-66544-968-3 %G eng %U https://ieeexplore.ieee.org/abstract/document/9638724 %0 Journal Article %J Electrical Engineering %D 2021 %T Improvement of the induction motor sensorless control based on the type-2 fuzzy logic %A Benlaloui, Idriss %A CHRIFI-ALAOUI, Larbi %A Ouriagli, Mohammed %A Khemis, Abderrahmane %A Khamari, Dalila %A Said Drid %X

This paper presents MRAS speed sensorless control of induction motor using type-2 fuzzy logic controller (T2FLC). These controllers replace the PI ones, in the new MRAS strategy proposed in Benlaloui et al. (IEEE Trans Energy Convers 30(2):588–595, 2015), in order to improve the induction motor performances and robustness at low speed region. Indeed, the choice of these controllers is made because of their adaptation-based schemes which permit to handle nonlinear uncertain systems without the need of precise mathematical model required when using PI controllers. Comparative study had shown a better rejection of disturbance and high insensitivity to stator resistance compared to the PI and the T1FLC controllers. The effectiveness of the proposed speed-based T2FLC estimation method and its good robustness are validated by simulation and by experimental results.

%B Electrical Engineering %V 103 %P 1473-1482 %8 2021 %@ 1432-0487 %G eng %U https://link.springer.com/article/10.1007/s00202-020-01178-1 %0 Conference Proceedings %B Chem. Proc %D 2021 %T In situ one pot hemi-synthesis of new 2-pyridone derivatives %A HAFFAS, Maamar %A Benkiki, Naima %A MAADADI, Ramzi %A TALHI, Oualid %A BOUKENTOUCHA, Chafai %A CHEBROUK, Farid %A Kabouche, Zahia %X New 2-pyridone derivatives were hemi-synthetised in situ using essential oils of endemic Algerian plants; Ammodaucus Leucotrichus and eucalyptus citriodora as source of chiral aldehydes (perillaldehyde and citronellal respectively). The one pot reaction was carried out in Ethanol including cyanoacetohydrazide, essential oil, and malononitrile. The reaction mixture was catalysed by potassium carbonate. In the present work, two new compounds of highly functionalized 2-pyridones were obtained as privileged medicinal scaffolds. The structures of 2-pyridone derivatives were confirmed by 1H NMR, 13C and 2D %B Chem. Proc %I s Note: MDPI stays neu-tral with regard to jurisdictional claims in … %V 3 %8 2021 %G eng %U https://sciforum.net/manuscripts/11724/manuscript.pdf %0 Journal Article %J Future Journal of Pharmaceutical Sciences %D 2021 %T In vitro, acute and subchronic evaluation of the antidiabetic activity of Atractylis flava Desf n-butanol extract in alloxan-diabetic rats %A Melakhessou, Mohamed-Akram %A Marref, Salah-Eddine %A Benkiki, Naima %A Marref, Cherine %A Becheker, Imene %A Khattabi, Latifa %X

Background

Diabetes mellitus is a serious complex multifactorial disorder that imposes huge health and economic burden on societies. Because the currently available medications have many drawbacks, it's important to look for alternative therapies. Medicinal plants utilized in folk medicine are ideal candidates. Therefore, this work assessed the antidiabetic action of n-butanol extract from the whole plant Atractylis flava Desf (BEAF). These ethnomedicinal properties of BEAF were scientifically validated using in vitro and in vivo assays. In vitro antidiabetic effect of the BEAF was conducted using α-Glucosidase and α-Amylase assays. While the antihyperglycemic activity was assessed using two rat models: Alloxan-induced diabetic rats and oral glucose challenged rats. Experimental diabetes was induced by a single intraperitoneal injection of alloxan at a dose of 150 mg/kg and animals with fasting blood glucose levels (BGL) > 200 mg/dL were considered diabetic. Glibenclamide (5 mg/kg) was used as a typical drug.

Results

The BEAF at all tested dose levels (100, 250, and 500 mg/kg) showed a significant decrease in blood glucose level in all the two animal models. Besides, the plant extract exhibited a potent inhibitory effect on α-Amylase and α-Glucosidase activity at a concentration of 1000 µg/mL with 76.17% and 89.37%, respectively.

Conclusion

BEAF exerts in vitro and in vivo antidiabetic effects, these results suggest that the plant extract can be a therapeutic resource in the treatment of diabetes and hyperlipidemia.

%B Future Journal of Pharmaceutical Sciences %V 7 %P 1-7 %8 2021 %@ 2314-7253 %G eng %U https://fjps.springeropen.com/articles/10.1186/s43094-021-00358-5 %0 Journal Article %J Journal of Pharmacy & Pharmacognosy Research %D 2021 %T In vitro assessment of antioxidant, anti-inflammatory, neuroprotective and antimicrobial activities of Centaurea tougourensis Boiss. & Reut. %A Bensaad ,Mohamed-Sabri %A Dassamiour, Saliha %A Hambaba, Leila %A Chawki Bensouici %A Haba, Hamada %X

Context: More than 500 Centaurea species compose the Asteraceae family, and most of the recent studies made on the species of this genus proved their pharmacological potential, especially to treat chronic illnesses. Aims: To evaluate for the first time the antioxidant, anti-inflammatory, neuroprotective and anti-microbial properties of the n-butanol (nBuOH) and ethyl acetate (EA) extracts of the aerial part of Centaurea tougourensis. Methods: The antioxidant activity was determined by ABTS, galvinoxyl radical, phenanthroline, and reducing power assays, while the antiinflammatory effects were assessed by heat-induced hemolysis and egg albumin denaturation assays. The neuroprotective activity was assessed against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) and the anti-microbial activity by the agar disk diffusion method. Results: Both extracts possess a great antioxidant capacity, but it was considered higher in the n-BuOH extract with respective IC50 values of 8.04 ± 0.21 μg/mL in ABTS assay and 4.25 ± 0.6 μg/mL in GOR assay, while the A0.50 values were 4.46 ± 0.55 μg/mL in phenanthroline assay and 11.16 ± 0.64 μg/mL in reducing power assay. The n-BuOH extract also showed a remarkable anti-inflammatory activity with an EC50 of 120.81 ± 0.2 μg/mL in egg albumin denaturation assay and 154.15 ± 0.14 μg/mL in heat-induced hemolysis assay. The neuroprotective activity of the n-BuOH extract was very strong in both AChE and BChE inhibitory assays with respective IC50 values of 9.8 ± 0.62 μg/mL and 173.53 ± 0.04 μg/mL. EA extract was more active on microbial strains. Conclusions: These encouraging results showed once again the pharmacological potential of Centaurea species

%B Journal of Pharmacy & Pharmacognosy Research %V 9 %P 790-802 %8 2021 %@ 0719-4250 %G eng %U https://jppres.com/jppres/pdf/vol9/jppres21.1103_9.6.790.pdf %0 Journal Article %J Journal of Electrical Engineering %D 2021 %T INCIPIENT SHORT CIRCUIT FAULT IMPACT ON SERVICE CONTINUITY OF AN ELECTRIC VEHICLE PROPELLED BY DUAL INDUCTION MOTORS STRUCTURE %A Djamel BENOUDJIT %X

The short circuit is among one of the most dangerous electrical faults in induction motors, which leads to serious implications on the motor operation and its performance. The present paper deals with the influence of the stator short circuit fault in its early stage in terms of performances and service continuity of an electric vehicle (EV) using a dual induction motor’s structure piloted by Backstepping control. An equivalent induction motor model with turn-to-turn fault on one stator phase, without already assuming the temperature effect through an intrinsic model, is investigated and thereafter its impacts on electric vehicle performance using simulation tests are presented and discussed.

%B Journal of Electrical Engineering %V 21 %P 165-171 %8 2021 %@ 1582-4594 %G eng %U https://journal.iem.pub.ro/rrst-ee/article/view/191 %0 Journal Article %J International Journal of Information System Modeling and Design (IJISMD) %D 2021 %T An Incremental Model Projection Applied to Streamline Software Architecture Assessment and Monitoring %A Salim Kadri %A Sofiane Aouag %A Djalal HEDJAZI %X

Managing software architecture represents a big challenge throughout the development lifecycle. The complexity of the involved structural elements and the relations among them make the specified models look oversized and fuzzy, which makes the architecture incomprehensible, hard to maintain, and difficult to assess its quality. This paper's goal is to propose a powerful methodology for simplifying and reducing models' complexity to increase understandability, smoothing maintenance, and facilitating architecture monitoring and assessment. For this purpose, the authors rely heavily on two major concepts, multi-view modeling, and incremental model projection. The multi-viewing requires that all models must have two main views to describe the architecture and the mapping to its relevant quality attributes. The incremental projection is a methodology used to specialize and minimize models progressively to make them simpler and clearer. The results show that projecting models incrementally can reduce and narrow them significantly.

%B International Journal of Information System Modeling and Design (IJISMD) %V 12 %P 27-43 %8 2021 %G eng %U https://www.igi-global.com/article/an-incremental-model-projection-applied-to-streamline-software-architecture-assessment-and-monitoring/285952 %0 Journal Article %J Water Resources Management %D 2021 %T Individual Influence of Climate Variability Indices on Annual Maximum Precipitation Across the Global Scale %A Belkhiri, Lazhar %A Kim, Tae-Jeong %X

Studying the influence of climate variability indices on extreme precipitation will help to understand the variability of extreme precipitation. However, the influence of climate indices on extreme precipitation over the world has received little attention. In this work, a stationary generalized extreme value (GEV) model and nonstationary GEV models on the annual maximum 1-day precipitation (Rx1day) at the global scale are developed. The Bayesian framework is adopted in this study. Four climate variability indices such as the El Niño-Southern Oscillation (ENSO), Atlantic Multidecadal Oscillation (AMO), North Atlantic Oscillation (NAO) and Pacific Decadal Oscillation (PDO) are used independently as covariates. The results showed that nonstationary GEV models are preferred over the stationary GEV model based on Deviance Information Criterion (DIC) and the significant covariates for a large number of grid cells which indicates that the influence of climate index is not a negligible component in the GEV model. In addition, the positive and negative influences of the covariates are analyzed. At the global, the effect of ENSO on the location parameter is greater than the effect of the other covariates, indicating that ENSO has a strong influence on extreme precipitation in large parts of the world.

%B Water Resources Management %V 35 %P 2987-3003 %8 2021 %@ 1573-1650 %G eng %U https://link.springer.com/article/10.1007/s11269-021-02882-8 %0 Journal Article %J International Journal of Autonomous and Adaptive Communications Systems %D 2021 %T Industrial IoT middleware using a multi-agent system for consistency-based diagnostic in cement factory %A Benayache, Ayoub %A Azeddine Bilami %A Benaggoune, Khaled %A Mouss, Hayet %X

With the evolution of the internet of things (IoT), and due to its significant need in the industry, Industrial IoT (IIoT) becomes the suitable naming for this accompaniment. IIoT changed the view of the industry intelligently and over the internet. This overlapping of IoT and industry requires special treatment when systems deal with heterogeneous devices in a distributed environment and complex tasks. In this paper, we propose a middleware solution based on multi-agents system (MAS) to handle the distributed control of complex systems autonomously in an industrial environment. The proposed middleware enables machine-to-machine (M2M) communications among the system's components. In this work, we also addressed the distributed diagnostic for real industrial system using MAS with a new suitable communication strategy to support the heterogeneity and interoperability issued in IIoT and assure real-time monitoring and control. Finally, we present a qualitative evaluation of our solution on real case study (cement factory).

%B International Journal of Autonomous and Adaptive Communications Systems %V 14 %P 291-310 %8 2021 %@ 1754-8632 %G eng %U https://www.inderscienceonline.com/doi/abs/10.1504/IJAACS.2021.117805 %N 3 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Inelastic Analysis of Mdof Systems Damaged by Earthquakes, Posteriorly Subjected to Wind Load %A Badla, Oualid %A Bouzid, T %A Vazquez, P Martinez %X

This paper deals with the analysis of the inelastic response of buildings originally damaged by earthquakes and subjected to earthquake aftershock and wind loading. The overall aim is to establish the effect of wind actions on structural stability. To that end, one four-story bare frame benchmarked by the European Laboratory for Structural Assessment, is subject to various levels of winds and earthquake joint load while monitoring changes on the ductility demand. In this paper is shown that the combined action of strong winds and earthquakes, however its low probability of occurrence, would cause a decrease of strength reduction factors and considerably increase the ductility demand of damaged infrastructure hence inducing additional risks that would otherwise remain unquantified. The paper examines the non-linear performance of Multi-degree of freedom systems subject to various levels of winds and earthquake load and deals with the estimation of strength reduction factors. This is a relatively unexplored area of research which builds on past developments whereby inelastic performance of buildings has been discussed. It also links to various other paths of development such as structural reliability, forensic and control systems engineering.

%B Civil Engineering Journal %V 7 %P 575-593 %8 2021 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2663 %0 Journal Article %J Civil Engineering Journal %D 2021 %T Influence of Highway Traffic on Contamination of Roadside Soil with Heavy Metals %A Benabid, Abderrahmane %A Benmbarek, Naima, %A Mansouri, Tarek %A Merdas, Abdelghani %X

This study is one of the first works which examined the assessment of heavy metal contamination of pavement-side soils in Algeria. It deals with the section of National Highway 3 (RN3), which crosses the wilaya of Batna. In the environment of sampling sites there is no industry or dangerous activity on the environment, the heavy metals addressed in this study are (Pb, Cu, Cr, Fe, Ni, Zn), their origin being road traffic. The objectives of this study were to: (1) Determine the concentrations of heavy metals in road dust; (2) Identify the sources of different heavy metals in soils and road dust; (3) Exploring the extent of heavy metal pollution in neighbouring soils. To this end, 33 samples were collected, including 03 road dust and 30 soil samples over different distances from 1m to 80m. The samples were analyzed by FRX. Results indicated that concentrations in road dust were higher than in soil. The distribution of heavy metal concentrations in dust is Fe>Pb>Zn>Cu>Cr>Ni, and the distribution in the ground is Fe>Pb>Cu>Zn>Cr>Ni in the direction of Biskra and in the opposite direction and decreases away from the road, while the distribution in the central solid ground is Fe> Cu>Cr>Pb>Zn>Ni. Climatic conditions such as wind, rainfall, temperature, humidity and the nature of the terrain were also significantly related to their enrichment in these roadside soils. The enrichment factor (EF) and the geo-accumulation index (Igeo) were calculated, as well as all elements with a (EF) that ranges from moderate to high to extremely contaminated, reflecting the high anthropogenic load of these metals in the study area and the results of the Igéo accumulation indices confirm the results obtained for the enrichment factor (EF).

%B Civil Engineering Journal %V 7 %P 1459-1471 %8 2021 %@ 2476-3055 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2937 %N 8 %0 Journal Article %J Modeling Earth Systems and Environment %D 2021 %T Influence of temperature on transient flow with cavitation in copper pipe-rig %A Saidani, Amir %A Fourar, Ali %A Massouh, Fawaz %X

This article is particularly interested in the numerical modeling of water hammer in a hydraulic circuit, taking into account the prevailing water temperature. The study concerns the propagation velocity of the wave and the amplitude of unsteady phenomena encountered in the circuit, as well as the severity and collapse of cavitations that are also considered as major risks. To conjecture the consequences of these phenomena, we were led to simulate a single-phase and two-phase transient flows in a hydraulic copper pipe system in a temperature range of 4–95 °C. To do this, we have developed a solver for the dynamic and continuity equations’ resolution. The method of characteristics is chosen for its capacities to solve these equations. Its application shows that it is robust and adapted to the problem studied. Two cavitations’ models and column separation have been incorporated; in this case, the Discrete Vapor Cavity Model (DVCM) and the Discrete Gas Cavity Model (DGCM). Moreover, in addition to the classic models of quasi-stable friction, of which the models of unsteady friction have been included, like the one based on the instantaneous acceleration proposed by Brunone and the one proposed by Vardy & Brown based on the convolution integral. Although single-phase and two-phase water hammers do not behave in the same way, the results obtained with these models show that the temperature produces a great effect on the hammer.

%B Modeling Earth Systems and Environment %V 8 %P 2449–2459 %8 2021 %@ 2363-6211 %G eng %U https://link.springer.com/article/10.1007/s40808-021-01240-2 %0 Journal Article %J Acque Sotterranee-Italian Journal of Groundwater %D 2021 %T Initial assessment of the groundwater flow and budget using Geographic Information System, MODFLOW-2005 and the FREEWAT modeling tool in Bouteldja coastal aquifer (Northern East of Algeria) %A Harizi, Khaled %A Menani, Mohamed-Reda %A Chabour, Nabil %A Labar, Sofiane %X

The Bouteldja coastal aquifer is one of the most important groundwater resources in North eastern of Algeria. The region is under a sub-humid climate with an average rainfall of 600-880 mm/y. The unconfined aquifer is constituted of Quaternary sands formations. The hydrogeological characteristics were determined based on previous reports. A very important inflow recharges the sandy aquifer in the Southeastern boundary, in relation to a fault network system linking the aquifer and the Obeira Lake area. Another inflow is observed at the Southern boundary in relation to the exchanges with the alluvial aquifer of Bouteldja. The purpose of the present study is to provide an initial assessment of the groundwater flow and water budget of this aquifer. To achieve this goal, a one-layer groundwater flow numerical model was developed using the MODFLOW-2005 code and the FREEWAT software, using the available data. The model was run in steady state conditions. Calibration was achieved using the piezometric measurements of May 2018 as calibration target. After several trials of manual calibrations, the model successfully simulated the groundwater flows directions and heads. Calibration efforts lead to an acceptable concordance (for the purpose of this study) between the estimated and calculated hydraulic conductivity and piezometric heads, except at the Eastern border. The analyses of the simulated inflow budget shows that aside the rainfall infiltration, exchanges with surface water bodies, the adjoining alluvial aquifer and the fault system provide a relevant amount of water. This significant recharge needs additional investigations. This numerical modeling exercise using MODFLOW, the FREEWAT software and GIS reached the objective of a preliminary description of the groundwater flow and it represents an acceptable starting point for more thorough hydrodynamic characterization of the Bouteldja coastal aquifer.

%B Acque Sotterranee-Italian Journal of Groundwater %V 10 %P 41-51 %8 2021 %@ 2280-6458 %G eng %U https://www.acquesotterranee.net/acque/article/view/511 %0 Journal Article %J Analele Universităţii din Oradea, Seria Geografie %D 2021 %T INTEGRATION OF A GIS AND HEC-HMS MODELING TO IMPROVE URBAN RESILIENCE TO FLOOD RISK IN ALGIERS. ALGERIA %A Makhlouf Adel, K %A Djamel, T %A Yahyaoui, H %X %B Analele Universităţii din Oradea, Seria Geografie %V 31 %P 100-109 %8 2021 %G eng %U https://web.s.ebscohost.com/abstract?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=12211273&AN=155251695&h=JPf9iztQ6pzVHBNRUDT3XMPl0mZW%2b8Zx462HMSfOQUpESnje8s7pW%2bnF%2fJTs87Ai8G5PgaxdBn15XPeE4ygoyg%3d%3d&crl=c&resultNs=AdminWebAuth&resultLo %N 2 %0 Journal Article %J GeoJournal %D 2021 %T Integration of GIS and multi-criteria analysis for the assessment of the sensitivity to urbanization in Biskra and its neighboring oases, Algeria %A Berghout, Karima %A Hadda DRIDI %X

The main objective of this study is to establish a perspective orientation of urban growth in an arid region (Biskra and its neighboring oases) in south east Algeria by mobilizing the capacities of attractiveness. Taking into account climatic parameters (wind speed and temperatures) and physical parameters (land cover, slopes, and distance from roads), our approach is based on remote sensing techniques of satellite data classification and Geographic Information Systems for spatial analysis. By means of a multi-criteria analysis a decision support map of sites suitable for future urban dynamics was carried out. The results obtained show that 48% (or 71,782.25 ha) of the study area is located on land with very low sensitivity to urbanization. 9.45% at high sensitivity, 29.13% at medium sensitivity, while 13.41% at low sensitivity. The medium sensitivity zone occupies a considerable area estimated at 29.13% (a total of 43,577.58 ha). Spatially, this is reflected in uncontrolled urban sprawl to the detriment of oases and agricultural land, or land not suited to the requirements of climatic comfort in arid regions. This urbanization sensitivity map forms the basis of the prospective design of an urban model adapted and appropriate to the conditions of the oasis ecosystem through the integration of other climatic parameters.

%B GeoJournal %V 87 %P 4219–4234 %8 2021 %@ 1572-9893 %G eng %U https://link.springer.com/article/10.1007/s10708-021-10495-2 %0 Journal Article %J Energies %D 2021 %T Intelligent Condition Monitoring of Wind Power Systems: State of the Art Review %A Benbouzid, Mohamed %A Berghout, Tarek %A Sarma, Nur %A Djurović, Siniša %A Wu, Yueqi %A Ma, Xiandong %X

Modern wind turbines operate in continuously transient conditions, with varying speed, torque, and power based on the stochastic nature of the wind resource. This variability affects not only the operational performance of the wind power system, but can also affect its integrity under service conditions. Condition monitoring continues to play an important role in achieving reliable and economic operation of wind turbines. This paper reviews the current advances in wind turbine condition monitoring, ranging from conventional condition monitoring and signal processing tools to machine-learning-based condition monitoring and usage of big data mining for predictive maintenance. A systematic review is presented of signal-based and data-driven modeling methodologies using intelligent and machine learning approaches, with the view to providing a critical evaluation of the recent developments in this area, and their applications in diagnosis, prognosis, health assessment, and predictive maintenance of wind turbines and farms.

%B Energies %V 14 %P 5967 %8 2021 %G eng %U https://www.mdpi.com/1996-1073/14/18/5967 %N 18 %0 Journal Article %J International Journal of Heat and Technology %D 2021 %T Interaction Between the Turbulent Natural Convection and Surface Radiation Inside a Confined Greenhouse %A Noui, Samira %A Bougoul, Saadi %A Demagh, Yassine %X

Closed greenhouse systems optimize internal climatic conditions for both reducing energy loss and high-quality yields. Nevertheless, careful monitoring of the parameters of the microclimate requires a better understanding of the thermal phenomena that coexist at the same time inside the greenhouses. In the present study, the surface radiation effect on the natural convection in the greenhouse was investigated numerically based a turbulent unsteady model. The k-ε model was adopted for the turbulent flow and the discrete ordinate (DO) method for the radiation heat transfer. Assuming a no isotherm conditions at the floor and roof faces of the greenhouse and for a Rayleigh number ranges from 0.6×1010 to 2.3×1010. The results showed a strong radiation effect on the thermal behavior near the walls and considerably reduces the flow dynamics within the greenhouse. The contribution of the radiation heat transfer on the total Nusselt number at least 50% greater than that without. The results obtained for the selected values of Rayleigh numbers are in good agreement with the experimental data of the literature.

%B International Journal of Heat and Technology %V 39 %P 51-60 %8 2021 %G eng %U https://www.iieta.org/journals/ijht/paper/10.18280/ijht.390106 %N 1 %0 Journal Article %J Physica C: Superconductivity and its Applications %D 2021 %T Inverted HTS rectangular patch antennas: Theoretical investigation %A BEDRA, Sami %A BENKOUDA, Siham %A BEDRA, Randa %A FORTAKI, Tarek %X

In this paper, we propose a full-wave analysis for characterizing the resonant frequencies and bandwidths of high-temperature superconductor inverted microstrip printed on anisotropic substrates. Our proposed approach is based on Galerkin procedure in the Fourier transform domain (FTD) combining with the complex resistive boundary condition. With the use of suitable Green's functions in the FTD, the analysis is performed for the case where the superconducting rectangular patches printed on anisotropic substrate. The numerical results obtained using the proposed approach are compared with previously published numerical results computed by means of the electromagnetic simulator “IE3D software”. These comparisons were very good, which prove the correctness and the validity of the proposed method. It is found that the optical properties combined with optimally chosen structural parameters of anisotropic materials can be maintaining control of the resonant frequency and exhibiting wider bandwidth characteristics.

%B Physica C: Superconductivity and its Applications %V 580 %8 2021 %@ 0921-4534 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S0921453420304007 %0 Journal Article %J arXiv , Mathematics %D 2021 %T Inviscid limit for the viscous 2D Boussinesq system with temperature-dependent diffusivity %A Zerguine, Mohamed %A Maafa, Youssouf %X

We establish global-posedness in time for the viscous Boussinesq equations in two dimensions of space with temperature-dependent diffusivity in the framework of a smooth vortex patch. We also provide the inviscid limit for velocity, temperature, and associated flow toward the system studied very recently in \cite{Paicu-Zhu} as soon as the viscosity goes to zero, and quantify the rate of convergence.

%B arXiv , Mathematics %8 2021 %G eng %U https://arxiv.org/abs/2101.07014 %0 Journal Article %J Geotechnical and Geological Engineering %D 2021 %T Landslide Susceptibility Mapping Using GIS-based Fuzzy Logic and the Analytical Hierarchical Processes Approach: A Case Study in Constantine (North-East Algeria) %A Amina Abdı %A Bouamrane, Ali %A Karech, Toufik %A Dahri, Noura %A Anouar Kaouachi %X

The main purpose of this study was to compare and evaluate the performance of two multicriteria models for landslide susceptibility assessment in Constantine, north-east of Algeria. The landslide susceptibility maps were produced using the analytic hierarchy process (AHP) and Fuzzy AHP (FAHP) via twelve landslides conditioning factors, including the slope gradient, lithology, land cover, distance from drainage network, distance from the roads, distance from faults, topographic wetness index, stream power index, slope curvature, Normalized Difference Vegetation Index, slope aspect and elevation. In this study, the mentioned models were used to derive the weighting value of the conditioning factors. For the validation process of these models, the receiver operating characteristic analysis, and the area under the curve (AUC) were applied by comparing the obtained results to The landslide inventory map which prepared using the archives of scientific publications, reports of local authorities, and field survey as well as analyzing satellite imagery. According to the AUC values, the FAHP model had the highest value (0.908) followed by the AHP model (0.777). As a result, the FAHP model is more consistent and accurate than the AHP in this case study. The outcome of this paper may be useful for landslide susceptibility assessment and land use management.

%B Geotechnical and Geological Engineering %V 39 %P 5675-5691 %8 2021 %@ 1573-1529 %G eng %0 Journal Article %J Physica E: Low-dimensional Systems and Nanostructures %D 2021 %T Layers engineering optoelectronic properties of 2D hexagonal GeS materials %A El-Bakkali, Abdelmajid %A Sadki, Siham %A Drissi, Lalla Btissam %A Djeffal, Faycal %X

Using first-principles calculations, we study the structural, electronic and optical properties of the monolayer, bilayer and trilayer germanium monosulfide GeS. The results reveal an indirect semiconducting band gap for the monolayer and trilayer GeS, whereas the gap is direct for the bilayer GeS. Both the generalized gradient approximation and the screened hybrid functionals assess a decrease in band energy as the number of layers is improved. Furthermore, due to the high buckling of lattice structures, the optical spectra show significant degree of anisotropy. The number of layers engineers key optical parameters including the refractive index, the reflectivity absorption and provides the layered GeS with excellent absorption in the low energy region, namely the visible and UV range of the electromagnetic spectrum. Accordingly, 2D hexagonal GeS few-layers can be used as a highly promising material in the optoelectronic, ultraviolet optical nanodevices and photovoltaics.

%B Physica E: Low-dimensional Systems and Nanostructures %V 133 %P 114791 %8 2021 %@ 1386-9477 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S1386947721001740 %0 Journal Article %J Energies %D 2021 %T Leveraging Label Information in a Knowledge-Driven Approach for Rolling-Element Bearings Remaining Useful Life Prediction %A Berghout, Tarek %A Benbouzid, Mohamed %A Mouss, Leïla-Hayet %X

Since bearing deterioration patterns are difficult to collect from real, long lifetime scenarios, data-driven research has been directed towards recovering them by imposing accelerated life tests. Consequently, insufficiently recovered features due to rapid damage propagation seem more likely to lead to poorly generalized learning machines. Knowledge-driven learning comes as a solution by providing prior assumptions from transfer learning. Likewise, the absence of true labels was able to create inconsistency related problems between samples, and teacher-given label behaviors led to more ill-posed predictors. Therefore, in an attempt to overcome the incomplete, unlabeled data drawbacks, a new autoencoder has been designed as an additional source that could correlate inputs and labels by exploiting label information in a completely unsupervised learning scheme. Additionally, its stacked denoising version seems to more robustly be able to recover them for new unseen data. Due to the non-stationary and sequentially driven nature of samples, recovered representations have been fed into a transfer learning, convolutional, long–short-term memory neural network for further meaningful learning representations. The assessment procedures were benchmarked against recent methods under different training datasets. The obtained results led to more efficiency confirming the strength of the new learning path.

%B Energies %V 14 %P 2163 %8 2021 %G eng %U https://www.mdpi.com/1996-1073/14/8/2163 %N 8 %0 Journal Article %J Electrical Engineering %D 2021 %T Linear parameter varying sensorless torque control for singularly perturbed induction motor with torque and flux observers %A Khamari, Dalila %A Benlaloui, Idriss %A Sabir Ouchen %A Makouf, Abdesslem %A Chrifi Alaoui, Larbi %X

In this paper, a new approach being different from the concept of DTC and IFOC for a robust torque control design for induction motor is addressed. The design is based on the framework of singularly perturbed system theory and linear varying parameter systems. In these systems, the rotor flux is considered to be a time-varying parameter in order to guarantee a robust torque control with LPV flux observer with respect to the speed and resistance variations. In fact, this observer is designed to estimate the rotor flux as well as an MRAS observer is introduced to estimate the mechanical speed and rotor resistance. The main feature of this proposed structure is the enhancement of robustness with flux, speed and rotor resistance variation. This improvement leads to a considerable decrease of the torque ripples and ensures the stability for the entire operating range. The obtained simulations and experimental results are used to validate the effectiveness of the proposed control strategy.

%B Electrical Engineering %V 103 %P 505-518 %8 2021 %@ 1432-0487 %G eng %U https://link.springer.com/article/10.1007/s00202-020-01095-3 %0 Journal Article %J Silicon %D 2021 %T Low Power Circuit and System Design Hierarchy and Thermal Reliability of Tunnel Field Effect Transistor %A Naima, Guenifi %A Shiromani, Balmukund Rahi %X

Tunnel FET is one of the promising devices advocated as a replacement of conventional MOSFET to be used for low power applications. Temperature is an important factor affecting the performance of circuits or system, so temperature associated reliability issues of double gate Tunnel FET and its impact on essential circuit design components have been addressed here. The temperature reliability investigation is based on double gate Tunnel FET, containing Si1-xGe x /Si, source/channel and HfO2 high-k gate dielectric material. During investigation, it has been found that at high temperature application range ~ 300 K - to - 600 K,the Tunnel FET device design parameters exhibit weak temperature dependency with switching current (ION), while the off-state current (IOFF) is slightly varying ~10−17A/μm-to-10−10A/μm. In addition, the impact of temperature on various device design element such as VTH(i.e.,switching voltage),on-current (ION), off-current (IOFF), switching ratio (ION/IOFF) and average subthreshold slope (i.e., SSavg), ambipolar current (IAMB) have been done in this research work.The essential circuit design components for digital and analog/RF applications, such as current amplification factor(gm) and its derivative (gm’),the C-V components of device design, Cgg, Cgd and Cgs, cut - off frequency (ƒT) and gain band width (GBW) product have deeply investigated. In conclusion, the obtained results show that the designed double gate Tunnel FET device configuration and its circuit design components are suitable for ultra-low power circuit,system applications and reliable for hazardous temperature environment.

%B Silicon %V 14 %P 3233–3243 %8 2021 %@ 1876-9918 %G eng %U https://link.springer.com/article/10.1007/s12633-021-01088-2 %0 Conference Proceedings %B IECON 2021–47th Annual Conference of the IEEE Industrial Electronics Society %D 2021 %T Machine Learning for Photovoltaic Systems Condition Monitoring: A Review %A Berghout, Tarek %A Benbouzid, Mohamed %A Ma, Xiandong %A Djurović, Siniša %A Mouss, Leïla-Hayet %X Condition Monitoring of photovoltaic systems plays an important role in maintenance interventions due to its ability to solve problems of loss of energy production revenue. Nowadays, machine learning-based failure diagnosis is becoming increasingly growing as an alternative to various difficult physical-based interpretations and the main pile foundation for condition monitoring. As a result, several methods with different learning paradigms (e.g. deep learning, transfer learning, reinforcement learning, ensemble learning, etc.) have been used to address different condition monitoring issues. Therefore, the aim of this paper is at least, to shed light on the most relevant work that has been done so far in the field of photovoltaic systems machine learning-based condition monitoring. %B IECON 2021–47th Annual Conference of the IEEE Industrial Electronics Society %I IEEE %C Toronto, Canada %P 1-5 %8 2021 %@ 1-66543-554-2 %G eng %U https://ieeexplore.ieee.org/abstract/document/9589423 %0 Journal Article %J Energies %D 2021 %T Machine Learning-Based Condition Monitoring for PV Systems: State of the Art and Future Prospects %A Berghout, Tarek %A Benbouzid, Mohamed %A Bentrcia, Toufik %A Ma, Xiandong %A Djurović, Siniša %A Mouss, Leïla-Hayet %X

To ensure the continuity of electric power generation for photovoltaic systems, condition monitoring frameworks are subject to major enhancements. The continuous uniform delivery of electric power depends entirely on a well-designed condition maintenance program. A just-in-time task to deal with several naturally occurring faults can be correctly undertaken via the cooperation of effective detection, diagnosis, and prognostic analyses. Therefore, the present review first outlines different failure modes to which all photovoltaic systems are subjected, in addition to the essential integrated detection methods and technologies. Then, data-driven paradigms, and their contribution to solving this prediction problem, are also explored. Accordingly, this review primarily investigates the different learning architectures used (i.e., ordinary, hybrid, and ensemble) in relation to their learning frameworks (i.e., traditional and deep learning). It also discusses the extension of machine learning to knowledge-driven approaches, including generative models such as adversarial networks and transfer learning. Finally, this review provides insights into different works to highlight various operating conditions and different numbers and types of failures, and provides links to some publicly available datasets in the field. The clear organization of the abundant information on this subject may result in rigorous guidelines for the trends adopted in the future.

%B Energies %V 14 %8 2021 %G eng %U https://www.mdpi.com/1996-1073/14/19/6316 %0 Journal Article %J Journal of Arid Environments %D 2021 %T Macroinvertebrate functional trait responses to environmental gradients and anthropogenic disturbance in arid-land streams of North Africa %A Imène Benzina %A SI-BACHIR, Abdelkrim %A Frédéric Santoul %A Régis Céréghino %X

We analyzed the influence of land use and water physical-chemical characteristics on the trait composition of benthic macroinvertebrates in arid-land streams of North-East Algeria. Macroinvertebrates were sampled in the spring season of 2015, 2017 and 2018 at 36 sampling sites distributed along 5 streams of the Belezma biosphere reserve. Samples were taken from the various substratum types using a Surber net. Most of the variability of the trait-environment relationship was explained by increasing temperature and conductivity along the downstream gradient. Whilst agriculture at higher elevations did not have a great influence on the functional trait composition of macroinvertebrate communities, agriculture and urbanization at lower elevations generated significant deviations from predictable functional structures. Owing to the natural downstream decrease in community diversity in streams of the study region, entire taxa and/or functional groups were more likely to be wiped out in response to anthropogenic perturbations at lower elevations. Despite human activities, climate-related variables in arid lands play a major role on hydrological regimes that effect instream habitats, water chemistry, and macroinvertebrate communities. Given the environmental constraints in arid-land streams of North Africa, even slight increases in anthropogenic pressure can have negative effects on the taxonomic and functional composition of macroinvertebrate communities.

%B Journal of Arid Environments %V 195 %8 2021 %@ 0140-1963 %G eng %U https://www.sciencedirect.com/science/article/abs/pii/S0140196321001920 %0 Conference Proceedings %B 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %D 2021 %T Maximization of the Stability Radius of an Infinite Dimensional System Subjected to Stochastic Unbounded Structured Multi-perturbations With Unbounded Input Operator %A Amina, Heddar %A Maissa, Kada %X The issue of robustness of stability has been prominent in the literature on control theory over the last two decades. An important state-space approach to robustness analysis is the stability radii theory. The robust stability problems of infinite dimensional systems subjected to stochastic bounded structured perturbations have been studied using the stability radius approach. In the applications it is important to study these problems in the case where the perturbations operator structure are unbounded, because it covers the case of partial differential equations with boundary and .. %B 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %I IEEE %P 1-5 %8 2021 %@ 1-66544-171-2 %G eng %U https://icramcs2021.sciencesconf.org/data/icramcs2021_paper_196.html %0 Journal Article %J Msphere %D 2021 %T MCR-5-Producing Colistin-Resistant Cupriavidus gilardii Strain from Well Water in Batna, Algeria %A Zineb Cherak %A Lotfi Loucif %A Ben-Khedher, Mariem %A Moussi, Abdelhamid %A Benbouza, Amel %A Baron, Sophie Alexandra %A Jean-Marc Rolain %X

This paper presents the first description of the mcr-5.1 gene in a colistin-resistant Cupriavidus gilardii isolate from well water that supplies a maternity hospital in Algeria. The whole-genome sequence of this strain showed the presence of putative β-lactamase, aac(3)-IVa, and multidrug efflux pump-encoding genes, which could explain the observed multidrug resistance phenotype. Our findings are of great interest, as we highlight a potential contamination route for the spread of mcr genes. 

IMPORTANCE Colistin resistance mediated by mcr genes in Gram-negative bacteria has gained significant attention worldwide. This is due to the ability of these genes to be horizontally transferred between different bacterial genera and species. Aquatic environments have been suggested to play an important role in the emergence and spread of this resistance mechanism. Here, we describe the first report of an mcr-5-positive Cupriavidus gilardii aquatic isolate through its isolation from well water in Algeria. The significance of our study is in shedding the light on an important environmental reservoir of mcr genes.

%B Msphere %V 6 %8 2021 %@ 2379-5042 %G eng %U https://pubmed.ncbi.nlm.nih.gov/34468167/ %0 Journal Article %J Civil Engineering Journal %D 2021 %T Mechanical Behavior of the Extraction Mud Dam for Use in the Manufacture of CEB %A Benaicha, Amar-Cherif %A Fourar, Ali %A Mansouri, Tarek %A Massouh, Fawaz %X

The aim of this work is to study the mechanical behavior of the sediments extracted from the Koudiet Meddaouar, Timgad dam (Algeria), for a possible valorization in the field for building works in order to minimize this phenomenon which is currently a concern for the operators and the persons in charge of the mobilization of the water resources. This siltation therefore severely limits its storage capacity and consequently it’s operating life. The extraction of the sediments accumulated in the dam's reservoir is therefore imperative, on the pain of seeing it perish in the medium term. These sediments are, however, of great geotechnical and mechanical value. The results of the tests conducted in the laboratory have enabled us to identify the different sediments from a physical and geotechnical point of view In front of the difficulties noted in the control of the silting up of the dams in Algeria, a very important quantity of silt being deposited annually in the dams. In order to achieve our objective, different mixtures of silt with or without lime treatment, cement glass fibers and powdered fibers were studied for the possible manufacture of Compressed Earth Bricks (CEB). The results obtained show that some of the mixtures present very interesting results in the different tests (compression and bending), verifying the conditions of the standards in force and thus allowing their use in the field of the manufacture of building materials.

%B Civil Engineering Journal %V 7 %P 1774-1786 %8 2021 %@ 2476-3055 %G eng %U https://www.civilejournal.org/index.php/cej/article/view/2980 %N 10 %0 Journal Article %J Journal Européen des Systèmes Automatisés %D 2021 %T Metaheuristic Optimization of PD and PID Controllers for Robotic Manipulators %A Bounouara, Nadia %A Ghanai, Mouna %A Chafaa, Kheireddine %X

In this paper, the Particle Swarm Optimization algorithm (PSO) is combined with Proportional-Derivative (PD) and Proportional-Integral-Derivative (PID) to design more efficient PD and PID controllers for robotic manipulators. PSO is used to optimize the controller parameters Kp (proportional gain), Ki (integral gain) and Kd (derivative gain) to achieve better performances. The proposed algorithm is performed in two steps: (1) First, PD and PID parameters are offline optimized by the PSO algorithm. (2) Second, the obtained optimal parameters are fed in the online control loop. Stability of the proposed scheme is established using Lyapunov stability theorem, where we guarantee the global stability of the resulting closed-loop system, in the sense that all signals involved are uniformly bounded. Computer simulations of a two-link robotic manipulator have been performed to study the efficiency of the proposed method. Simulations and comparisons with genetic algorithms show that the results are very encouraging and achieve good performances.

%B Journal Européen des Systèmes Automatisés %V 54 %P 835-845 %8 2021 %G eng %U https://www.iieta.org/download/file/fid/66104 %N 6 %0 Journal Article %J The Journal of Obstetrics and Gynecology of India %D 2021 %T Miscarriage Risk Factors for Pregnant Women: A Cohort Study in Eastern Algeria’s Population %A Kalla, Adel %A Lotfi Loucif %A Yahia, Mouloud %X

Background

Miscarriage is defined as an adverse and unexpected termination of pregnancy; it is the most frequent pregnancy complication. Here, we aimed to identify the factors predisposing to miscarriage in pregnant women in Eastern Algeria and the effect of the combination of several factors, including maternal Body Mass Index (BMI), maternal age, concomitant pathologies, and nutrients, and to predict the occurrence of miscarriage.

Methods

A total of 786 pregnant women from Eastern Algeria were interviewed between 2011 and 2015. Association between miscarriage exposure and identified risk factors was assessed using a Generalized Linear Model (GLM), ANOVA test, Multiple Correspondence Analysis (MCA), and Hierarchical Clustering Analysis (HCA). Throughout this study, we sought to find answers, discuss this association, and predict the occurrence of miscarriage.

Results

We developed a predictive model for miscarriage, and we found that miscarriage was significantly higher for pregnant women aged over 35 years (1.75; 95% CI: 0.75–4.37; p = 0.208), with a high BMI (> 25 kg/m2), (1.88; 95% CI:1.28–2.78; p = 0.001). We have highlighted that miscarriage is strongly associated with hypertension (1.67; 95% CI: 1.16–2.39; p = 0.006), diet rich in meat (0.60; 95% CI: 0.33–1.04; p = 0.075), and moderate in fish (2.32; 95% CI: 1.18–4.58; p = 0.015).

Conclusion

Our study proved that knowing these risk factors helps to establish predictive models and strategies to prevent tragic pregnancy outcomes and highlights the link between miscarriage and several risk factors; and thus, will allow protecting mother and fetus health.

%B The Journal of Obstetrics and Gynecology of India %V 72 %P 1-12 %8 2021 %@ 0975-6434 %G eng %U 10.1007/s13224-021-01564-0 %0 Conference Proceedings %B International Conference on Artificial Intelligence in Renewable Energetic Systems %D 2021 %T Modal Analysis of a Two Axis Photovoltaic Solar Tracker %A Karim Ferroudji %A Outtas, Touffik %A Monkova, K %X

As compared to a fixed Photovoltaic (PV) system, a two axis solar tracker system can increase electrical energy production from 35% to 45% in a year. Vibration characteristic is an essential factor in evaluating the reliability and stability of solar tracker structure during operating course. In this paper, the free vibration behaviour (modal analysis) of 12 kW two axis PV solar tracker structure is investigated numerically. The modal analysis by using commercial finite element package (SOLIDWORKS SIMULATION) to identify the modal parameters of the tracker structure (natural frequencies and corresponding modal shapes). The simulation results obtained for tracker structure at maximum elevation angle (60deg) indicate that no resonant problem (according to ASHRAE Standard) during solar tracker operation under wind load (from 0 to 36 m/s).

%B International Conference on Artificial Intelligence in Renewable Energetic Systems %I Springer %P 230-236 %8 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-3-030-92038-8_23 %0 Journal Article %J International Journal of Geotechnical Engineering %D 2021 %T Model experiments to assess effect of eccentric loading on the ultimate bearing capacity of a strip footing near a dry sand slope %A Mazouz, Badis %A Abbeche, Khelifa %A Abdi, Abdelmadjid %A Baazouzi, Messaoud %X

The behaviour of shallow foundations on slopes is an important topic of interest in geotechnical engineering. This paper presents the results of laboratory model tests of an eccentrically loaded strip footing on a slope. Experiments were conducted with an eccentrically loaded model footing under various eccentricity ratios (±e/B) and normalized footing distances (d/B) and the results were compared with previous literature. The results confirm that the load eccentricity and normalized footing distance have considerable effects on the drained bearing capacity. The ultimate bearing capacity of a negative eccentric load is greater than that of a positive eccentric load up to a relative distance of d/B = 3. At this point, the bearing capacity becomes almost the same regardless of the eccentricity location relative to the slope face. Furthermore, the failure mechanism is not symmetrical; a greater failure surface length can develop on the slope side and this length decreases with increasing eccentricity.

%B International Journal of Geotechnical Engineering %V 15 %P 1241-1251 %8 2021 %@ 1938-6362 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/19386362.2019.1665385 %0 Journal Article %J Modeling Earth Systems and Environment %D 2021 %T Modeling and prediction of earthquake-related settlement in embankment dams using non-linear tools %A Zeroual, Abdelatif %A Fourar, Ali %A Merrouchi, Farida %A Seghir, Tarek %A Berghout, Mourad %A Kerkouri, Ali %X

Seismic deformation assessments are an ongoing issue in the design, monitoring and construction of earth dams. The need for new advanced methods to model their seismic behavior and to evaluate the resulting deformations is justified by the uncertainties surrounding conventional methods, mainly, with liquefaction phenomena. In this respect, the present study focuses on the prediction of relative crest settlement of embankment dams under variant earthquake loading (ΔhEQ/H). For this purpose, Back-Propagation Neural Network (BPNN) and Multivariate Adaptive Regression Splines (MARS) models were developed to predict (ΔhEQ/H). Two different databases of historically documented earthquake cases are collected for model development and comparative performance between model predictions. The first contains 151 observations of liquefied and non-liquefied cases, while the second contains only 109 non-liquefied cases. The obtained results indicated that both technics could be used as reliable tools to predict the earthquake-related crest settlement in embankment dams. Also, MARS was selected as the most successful prediction tool.

%B Modeling Earth Systems and Environment %V 8 %P 1949–1962 %8 2021 %@ 2363-6211 %G eng %U https://link.springer.com/article/10.1007/s40808-021-01201-9 %0 Journal Article %J Journal of occupational and environmental hygieneJournal of Occupational and Environmental Hygiene %D 2021 %T Modeling occupational exposure to solvent vapors using the Two-Zone (near-field/far-field) model: a literature review %A Abattan, Spéro Franck %A Lavoué, Jérôme %A Hallé, Stéphane %A Bahloul, Ali %A Drolet, Daniel %A Debia, Maximilien %B Journal of occupational and environmental hygieneJournal of Occupational and Environmental Hygiene %V 18 %P 51-64 %8 2021 %@ 1545-9624 %G eng %0 Conference Proceedings %B 2021 International Conference on Control, Automation and Diagnosis (ICCAD) %D 2021 %T A Modified Perturbe and Observe MPPT Technique for Standalone Hybrid PV-Wind with Power Management %A Fatah, A %A Benlaloui, I %A Mechnane, F %A Boutabba, T %A Khamari, D %A Drid, S %A Chrifi-Alaoui, L %X In this work, a modified perturbs and observes (P&O) technique is used in the hybrid power generation system with power management. There are several algorithms for extracting the maximum power point (MPP) provided from the PV generator; P & O algorithm has a good performance, ease of implementation by analog and digital electronics. However, this algorithm has disadvantages because it oscillates at the point of maximum power and has a relatively long convergence time; therefore, a modification is made to the P & O algorithm in order to reduce setup time and oscillations in the MPP. The proposed system allows optimal use of the photovoltaic (PV) system and the DFIG wind proves its efficiency under variable load conditions. The model is implemented in the MATLAB / Simulink platform. %B 2021 International Conference on Control, Automation and Diagnosis (ICCAD) %I IEEE %C Grenoble, France %P 1-6 %8 2021 %@ 1-66544-968-3 %G eng %U https://ieeexplore.ieee.org/abstract/document/9638740 %0 Journal Article %J Journal of Innovative Applied Mathematics and Computational SciencesJournal of Innovative Applied Mathematics and Computational Sciences %D 2021 %T More on standard single valued neutrosophic metric spaces: More on SVN-metric spaces %A Milles, Soheyb %A Latreche, Abdelkrim %A Barkat, Omar %B Journal of Innovative Applied Mathematics and Computational SciencesJournal of Innovative Applied Mathematics and Computational Sciences %V 1 %P 40-47 %8 2021 %@ 2773-4196 %G eng %0 Journal Article %J International Journal of Distributed Systems and Technologies (IJDST)International Journal of Distributed Systems and Technologies (IJDST) %D 2021 %T MQTT-Based QoS Model for IoT-M2M Critical Applications %A Barkat, Sami %A Azeddine Bilami %A Benayache, Ayoub %B International Journal of Distributed Systems and Technologies (IJDST)International Journal of Distributed Systems and Technologies (IJDST) %V 12 %P 1-21 %8 2021 %G eng %0 Journal Article %J Information and Software TechnologyInformation and Software Technology %D 2021 %T MS-QuAAF: A generic evaluation framework for monitoring software architecture quality %A Salim Kadri %A Sofiane Aouag %A Djalal HEDJAZI %B Information and Software TechnologyInformation and Software Technology %V 140 %P 106713 %8 2021 %@ 0950-5849 %G eng %0 Journal Article %J International Journal of Quality & Reliability ManagementInternational Journal of Quality & Reliability Management %D 2021 %T Multi-objective optimization of safety instrumented systems maintenance strategy: a case study %A Touahar, Hafed %A Ouazraoui, Nouara %A Khanfri, Nor El Houda %A Korichi, Mourad %A Bachi, Bilal %A Boukrouma, Houcem Eddine %B International Journal of Quality & Reliability ManagementInternational Journal of Quality & Reliability Management %8 2021 %@ 0265-671X %G eng %0 Journal Article %J International Journal on Electrical Engineering and InformaticsInternational Journal on Electrical Engineering and Informatics %D 2021 %T Multiple Features Extraction and Classifiers Combination Based Handwriting Digit Recognition %A Derdour, Khedidja %A Mouss, Hayet %A Bensaadi, Rafik %B International Journal on Electrical Engineering and InformaticsInternational Journal on Electrical Engineering and Informatics %V 13 %P 163-178 %8 2021 %@ 2085-6830 %G eng %0 Journal Article %J Int. Arab. J. Inf. TechnolInt. Arab. J. Inf. Technol %D 2021 %T A Multi-Population Genetic Algorithm for Adaptive QoS-Aware Service Composition in Fog-IoT Healthcare Environment %A AOUDIA, Idir %A BENHARZALLAH, Saber %A KAHLOUL, Laid %A Okba KAZAR %B Int. Arab. J. Inf. TechnolInt. Arab. J. Inf. Technol %V 18 %P 464-475 %8 2021 %G eng %0 Journal Article %J Journal of Circuits, Systems and ComputersJournal of Circuits, Systems and Computers %D 2021 %T A multistage algorithm design for electrocardiogram signal denoising %A Harkat, Amel %A Benzid, Redha %A Athamena, Noureddine %B Journal of Circuits, Systems and ComputersJournal of Circuits, Systems and Computers %V 30 %P 2150061 %8 2021 %@ 0218-1266 %G eng %0 Conference Proceedings %B E3S Web of Conferences %D 2021 %T Natural Convection in Tilted Rectangular Cavity subjected to T A %A Benyoucef, Djamila %A Mostefa Zeroual %A Hocine Ben Moussa %X The present study investigates the spectral analysis for natural convection in a tilted rectangular cavity, lled with high Prandtl oil ”Pr =880” by the code CFD. A constant vertical temperature gradient has been performed by subjecting the horizontal walls to constant temperatures Th and Tc; respectively. Other walls are adiabatic except the left small sidewall is differentially heating with temperature TA creating the horizontal temperature gradient. The results are presented for different values of lateral heating and inclination angle. The spectral analysis is used to identify and show effects on the original oscillation of the natural convection by the various investigated parameters (TA and θ) %B E3S Web of Conferences %I EDP Sciences %V 297 %8 2021 %@ 2555-0403 %G eng %U https://www.proquest.com/openview/1e73762b0194d09da9117bc417f0dc75/1?pq-origsite=gscholar&cbl=2040555 %0 Journal Article %J Boletim da Sociedade Paranaense de MatemáticaBoletim da Sociedade Paranaense de Matemática %D 2021 %T A new class of fredholm integral equations of the second kind with non symmetric kernel: solving by wavelets method %A MENNOUNI, ABDELAZIZ %A Ramdani, Nedjem Eddine %A Zennir, Khaled %B Boletim da Sociedade Paranaense de MatemáticaBoletim da Sociedade Paranaense de Matemática %V 39 %P 67-80 %8 2021 %@ 2175-1188 %G eng %0 Journal Article %J Journal of Interdisciplinary MathematicsJournal of Interdisciplinary Mathematics %D 2021 %T A new criterion for best quadrature method %A Kendri, Dalila %A Melkemi, Khaled %B Journal of Interdisciplinary MathematicsJournal of Interdisciplinary Mathematics %P 1-12 %8 2021 %@ 0972-0502 %G eng %0 Journal Article %J Bulletin of Electrical Engineering and InformaticsBulletin of Electrical Engineering and Informatics %D 2021 %T New modeling approach of laser communication in constellation and through atmospheric disturbances %A Chenina, Hachemi %A Benatia, Djamel %A Boulakroune, M’hamed %B Bulletin of Electrical Engineering and InformaticsBulletin of Electrical Engineering and Informatics %V 10 %P 2088-2099 %8 2021 %@ 2302-9285 %G eng %0 Journal Article %J Fluid Phase EquilibriaFluid Phase Equilibria %D 2021 %T New modified PC-SAFT pure component parameters for accurate VLE and critical phenomena description %A Imad ANOUNE %A Zoubeyr MIMOUNE %A Hakim MADANI %A Abdelkrim MERZOUGUI %B Fluid Phase EquilibriaFluid Phase Equilibria %V 532 %P 112916 %8 2021 %@ 0378-3812 %G eng %0 Journal Article %J International Journal of Grid and High Performance Computing (IJGHPC)International Journal of Grid and High Performance Computing (IJGHPC) %D 2021 %T A New Social Volunteer Computing Environment With Task-Adapted Scheduling Policy (TASP) %A Kadache, Nabil %A Seghir, Rachid %B International Journal of Grid and High Performance Computing (IJGHPC)International Journal of Grid and High Performance Computing (IJGHPC) %V 13 %P 39-55 %8 2021 %G eng %0 Journal Article %J Raffles Bulletin of ZoologyRaffles Bulletin of Zoology %D 2021 %T A new species of Chirixalus Boulenger, 1893 (Anura: Rhacophoridae) from the lowland forests of Java. %A Munir, Misbahul %A Hamidy, Amir %A Kusrini, Mirza Dikari %A Kennedi, Umar Fhadli %A Ridha, Mohammad Ali %A Qayyim, Dzikri Ibnul %A Rafsanzani, Rizky %A Nishikawa, Kanto %B Raffles Bulletin of ZoologyRaffles Bulletin of Zoology %V 69 %8 2021 %@ 0217-2445 %G eng %0 Book Section %B Entropy and Exergy in Renewable Energy %D 2021 %T Nonlinear Control Strategies of an Autonomous Double Fed Induction Generator Based Wind Energy Conversion Systems %A Bouchiba, Nouha %A Sallem, Souhir %A Kammoun, Mohamed Ben Ali %A CHRIFI-ALAOUI, Larbi %A Saïd Drid %B Entropy and Exergy in Renewable Energy %I IntechOpen %8 2021 %@ 1-83968-663-4 %G eng %0 Journal Article %J Journal of Mechanics in Medicine and BiologyJournal of Mechanics in Medicine and Biology %D 2021 %T NONLOCAL CONTINUUM ADAPTIVE ELASTIC BONE-COLUMN BUCKLING MODEL %A Bennaceur, H %A Ramtani, S %A Outtas, T %A Boukharouba, T %B Journal of Mechanics in Medicine and BiologyJournal of Mechanics in Medicine and Biology %V 21 %P 2150015 %8 2021 %@ 0219-5194 %G eng %0 Journal Article %J Physica E: Low-dimensional Systems and NanostructuresPhysica E: Low-dimensional Systems and Nanostructures %D 2021 %T A novel band-to-band tunneling junctionless carbon nanotube field-effect transistor with lightly doped pocket: Proposal, assessment, and quantum transport analysis %A Tamersit, Khalil %B Physica E: Low-dimensional Systems and NanostructuresPhysica E: Low-dimensional Systems and Nanostructures %V 128 %P 114609 %8 2021 %@ 1386-9477 %G eng %0 Conference Proceedings %B 2021 International Applied Computational Electromagnetics Society Symposium (ACES) %D 2021 %T A Novel Multifunction Implantable Antenna Design for Biomedical Telemetry %A Behih, Mohamed %A Bouttout, Farid %A FORTAKI, Tarek %A Dumond, Christophe %X In this work, a novel multifunction, multiband, and implantable PIFA antenna for biomedical telemetry is proposed. The covered frequency bands are the Medical Device Radiocommunications Service (MedRadio) (401 – 406 MHz), and Industrial, Scientific, and Medical (ISM) (433.1 – 434.8, and 902.8 – 928.0 MHz, and 2.4 – 2.4835 GHz), and the Wireless Medical Telemetry Service (WMTS) (1.395 – 1.400, and 1.427 – 1.432 GHz). The third ISM frequency band is reserved to the Wireless Power Transfer (WPT) function, The fourth ISM frequency band is dedicated to the wake - up operation, and the other operation frequency bands are proposed for data telemetry communications. The miniaturization is achieved by the shorting in PIFA, the radiating patch shaping by meandering and arms inserting, and open-ended slots inserting in the ground plane, the occupied volume is of 78.52mm 3 . Both the Equivalent Isotropic Radiated Power (EIRP) and the Specific Absorption Rate (SAR) restrictions are considered for the data telemetry, and the WPT functions performances. The obtained performances make the proposed antenna a good candidate for telemetry functions through muscle implants devices. %B 2021 International Applied Computational Electromagnetics Society Symposium (ACES) %I IEEE %C Hamilton, Canada %P 1-4 %8 2021 %@ 1-73350-962-3 %G eng %U https://ieeexplore.ieee.org/abstract/document/9528548 %0 Journal Article %J Transportation Infrastructure GeotechnologyTransportation Infrastructure Geotechnology %D 2021 %T Numerical Analysis of the Dynamic Behavior of Shallow Tunnel: a Case Study of Djebel El-Ouahch Tunnel, Algeria %A Berkane, Aicha %A Samy Mezhoud %A Karech, Toufik %A Beroual, Ahmed %B Transportation Infrastructure GeotechnologyTransportation Infrastructure Geotechnology %P 1-17 %8 2021 %@ 2196-7210 %G eng %0 Journal Article %J Transportation Infrastructure GeotechnologyTransportation Infrastructure Geotechnology %D 2021 %T Numerical Evaluation of Soil-Pile-Structure Interaction Effects in Nonlinear Analysis of Seismic Fragility Curves %A Guettafi, Nesrine %A Yahiaoui, Djarir %A Abbeche, Khelifa %A Tayeb Bouzid %B Transportation Infrastructure GeotechnologyTransportation Infrastructure Geotechnology %P 1-18 %8 2021 %@ 2196-7210 %G eng %0 Journal Article %J Journal of Applied and Computational MechanicsJournal of Applied and Computational Mechanics %D 2021 %T Numerical Investigation of an Unsteady and Anisotropic Turbulent Flow Downstream a 90 Bend Pipe with and without Ribs %A Chiremsel, Rachid %A Fourar, Ali %A Massouh, Fawaz %A Chiremsel, Zakarya %B Journal of Applied and Computational MechanicsJournal of Applied and Computational Mechanics %V 7 %P 1620-1638 %8 2021 %@ 2383-4536 %G eng %0 Journal Article %J Journal of Computational & Applied Research in Mechanical Engineering (JCARME)Journal of Computational & Applied Research in Mechanical Engineering (JCARME) %D 2021 %T Numerical investigation of temperature effect on water hammer with cavitation in copper pipe rig %A Saidani, Amir %A Fourar, Ali %A Massouh, Fawaz %B Journal of Computational & Applied Research in Mechanical Engineering (JCARME)Journal of Computational & Applied Research in Mechanical Engineering (JCARME) %8 2021 %@ 2228-7922 %G eng %0 Journal Article %J Modeling Earth Systems and EnvironmentModeling Earth Systems and Environment %D 2021 %T Numerical modeling of isothermal homogeneous turbulent flows by finite volumes in a compound hydraulic scheme %A Khanfouf, Omar %A Ali, Fourar %B Modeling Earth Systems and EnvironmentModeling Earth Systems and Environment %P 1-11 %8 2021 %@ 2363-6211 %G eng %0 Journal Article %J Archives of Hydro-Engineering and Environmental MechanicsArchives of Hydro-Engineering and Environmental Mechanics %D 2021 %T Numerical Modeling of the Pipeline Uplift Mechanism in Clay %A Abdelfateh, Kattar %A Mohamed, BAHEDDI %A Fattah, Mohammed Yousif %B Archives of Hydro-Engineering and Environmental MechanicsArchives of Hydro-Engineering and Environmental Mechanics %V 68 %P 119-135 %8 2021 %G eng %0 Journal Article %J Journal of Composite MaterialsJournal of Composite Materials %D 2021 %T A numerical modelling for resin transfer molding (RTM) process and effective thermal conductivity prediction of a particle–filled composite carbon–epoxy %A Djebara, Y %A Imad, A %A Saouab, A %A Kanit, T %B Journal of Composite MaterialsJournal of Composite Materials %V 55 %P 3-15 %8 2021 %@ 0021-9983 %G eng %0 Journal Article %J Civil Engineering JournalCivil Engineering Journal %D 2021 %T Numerical Modelling of One-Way Reinforced Concrete Slab in FireTaking Into Account of Spalling %A Cherif, Guergah %A Salah, Dimia Mohamed %A Abdelaziz, Benmarce %B Civil Engineering JournalCivil Engineering Journal %V 7 %P 477-487 %8 2021 %@ 2476-3055 %G eng %0 Conference Proceedings %B Seventh Geoinformation Science Symposium 2021 %D 2021 %T An object-based approach for vegetation and non-vegetation discrimination using WorldView-2 image %A Ridha, Syafiq Muhammad %A Kamal, Muhammad %X

The emergence of remote sensing images with high spatial resolution has increased the advancement of image-based information extraction methods. One of the rapidly developing approaches for mapping and analyzing high spatial resolution images is the object-based approach, also known as geographic object-based image analysis (GEOBIA). This development makes it possible to quickly and accurately distinguish between vegetated and non-vegetated objects in vegetation study. This study aims to (1) create a ruleset to discriminate vegetated and non-vegetated objects from a high spatial resolution image, (2) apply the GEOBIA approach to map vegetated and non-vegetated objects, and (3) calculate the accuracy of the mapping results. The GEOBIA approach was applied to a WorldView-2 image (2 m pixel size and eight multispectral bands) of the Clungup Mangrove Conservation area, Malang, East Java, Indonesia. We assessed the ability of all of the WorldView-2 image bands for discriminating the targeted objects. The segmentation process in GEOBIA used a multi-resolution segmentation algorithm using the normalized difference vegetation index (NDVI), and the image classification used a rule-based classification technique. The green, red, and near-infrared bands can effectively distinguish the targeted objects based on the developed ruleset. The classification result shows that the vegetated and non-vegetated classes fall within their corresponding objects on the image. We implemented an area-based accuracy assessment that assesses both positional and thematic accuracy of the mapping result, based on the visual interpretation of the pansharpened WV-2 image (0.5 m pixel size) as a reference for the accuracy assessment. This process results in a 74,06% accuracy, meaning that the combination of GEOBIA and WorldView-2 image produces high accuracy of vegetated and non-vegetated objects map.

%B Seventh Geoinformation Science Symposium 2021 %I SPIE %V 12082 %P 295-301 %8 2021 %G eng %U https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12082/120820U/An-object-based-approach-for-vegetation-and-non-vegetation-discrimination/10.1117/12.2619373.short?SSO=1 %0 Journal Article %J Linear and Multilinear AlgebraLinear and Multilinear Algebra %D 2021 %T Operator equations and inner inverses of elementary operators %A Lombarkia, F %A Boussaid, A %B Linear and Multilinear AlgebraLinear and Multilinear Algebra %V 69 %P 1989-1996 %8 2021 %@ 0308-1087 %G eng %0 Journal Article %J J. Eur. Syst. Autom.J. Eur. Syst. Autom. %D 2021 %T Optimal configuration investigation for photovoltaic water pumping system, case study: in a desert environment at Ghardaia, Algeria %A Benbaha, Noureddine %A Zidani, Fatiha %A Bouchakour, Abdelhak %A Boukebbous, S %A Mohamed Said NAIT-SAID %A Ammar, Hachemi %A Bouhoun, Salah %B J. Eur. Syst. Autom.J. Eur. Syst. Autom. %V 54 %P 549-558 %8 2021 %G eng %0 Journal Article %J Bulletin of Electrical Engineering and InformaticsBulletin of Electrical Engineering and Informatics %D 2021 %T Optimal setting of DOC relay in distribution system in presence of D-FACTS %A Bougouff, Lazhar %A CHAGHI, ABDELAZIZ %B Bulletin of Electrical Engineering and InformaticsBulletin of Electrical Engineering and Informatics %V 10 %P 1811-1818 %8 2021 %@ 2302-9285 %G eng %0 Journal Article %J UPB Scientific Bulletin, Series D: Mechanical EngineeringUPB Scientific Bulletin, Series D: Mechanical Engineering %D 2021 %T Optimisation multi-objective des paramètres de coupe lors de l’usinage d’un acier pour travail à froid avec un carbure revêtu CVD (Al2O3/TiC/TiCN) %A SAFI, Khaoula %A YALLESE, Mohammed A %A BELHADI, Salim %A BOUTABBA, Smail %A MABROUKI, Tarek %B UPB Scientific Bulletin, Series D: Mechanical EngineeringUPB Scientific Bulletin, Series D: Mechanical Engineering %V 83 %P 149-168 %8 2021 %G eng %0 Journal Article %J RheumatologyRheumatology %D 2021 %T P070 Evaluation of the perception of pediatric rheumatology by pediatric residents: results of a national survey %A Djohra HADEF %A Benaldjia, Hanane %A Saidani, Feryal %A Mechtaoui, Nesrine %X Background Pediatric Rheumatology (PR) is a young specialty that has not yet gained momentum in Algeria. The aim of this study is the assessment of the perception of PR by pediatric residents in Algeria and the current practice of this young sub-specialty in our country. Methods Descriptive cross-sectional study evaluating the perception of PR by pediatric residents was created on Google forms and distributed via email and Facebook to be taken as a self-administered online survey. The survey is composed of three parts: socio-demographic characteristics of the participant, current practice of PR and perspectives of PR training. Results Seventy-seven residents responded to the online questionnaire, with an average age of 30.40 ± 3.13 years and 65% of participants being female. Participation included different regions of Algeria (Batna, Annaba, Setif, Constantine, Algiers and Oran) and different levels of training (from the first year to the fifth year of residency) Ninety-two percent (92%) of participants had managed PR consultations, with a frequency of once a week in 75.3% of cases and twice a week in 15.6% of cases. In 81% of cases, it was not the initial presentation. The patients were mainly referred by a general practitioner or a general pediatrician. The Management of these patients was provided by a general pediatrician in 69.4% of cases and only in 37.7% by a specialized pediatrician. In 71.4% of cases, there was no pediatric rheumatologist in the establishment where the resident was being trained. The level of knowledge in PR was admitted to be poor by 59.7% of the respondents. Seventy-five percent of the residents wanted to have rotations dedicated to this sub-specialty during their training. Seventy percent thought that PR is equally as important to know as the other subspecialties in pediatrics (pediatric endocrinology, pediatric pneumology ...). Interest in further PR training was expressed by 80.5% of participants, given the chance. Conclusion This survey reinforces the perception that PR training needs to be improved in Algeria, especially as the number of PR consultations is on the rise. The creation of specialized training in PR is becoming a necessity. %B RheumatologyRheumatology %V 60 %8 11 2021 %G eng %0 Journal Article %J RheumatologyRheumatology %D 2021 %T P083 Primary Goujerot- Sjögren Syndrome: a pediatric case report %A Djohra HADEF %A Samy SLIMANI %A Ouchen, Yamina %X Background Gourgerot-Sjögren syndrome (GSS) is a systemic autoimmune disease characterized by lymphocytic infiltration of the exocrine glands leading to dryness of the mucous membranes. It may also involve other organs and organ systems. GSS can be primary (pGSS) or secondary due to other autoimmune diseases. pSGS mainly affects women over 40 years old, but can occur at any age. GSS is rare in children and is often secondary to other diseases. We report the case of a 12-year-old girl with primary Gougerot-Sjögren Syndrome Methods and results A 12-year-old girl from Batna (Algeria) presented to her pediatrician in 2016 for a rash with arthralgia. She had no relevant past medical history and is the child of a non-consanguineous marriage. Clinical examination found a well-nourished child with a purpuric rash on her lower limbs. She complained of arthralgia without clinical signs of arthritis. The child also complained of a sensation of a foreign body and burning in both eyes. The eye exam was normal except for a positive Schirmer’s test. There were no signs of parotitis. Laboratory tests showed an erythrocyte sedimentation rate (ESR) of 84 mm the first h and a negative C-reactive protein (CRP). She was also Leukopenic. Serological testing resulted in a positive Anti SS-A and Anti SS-B. The abdominal pelvic ultrasound was normal. The patient was diagnosed with primary Gougerot-Sjögren Syndrome. Artificial tears and hydroxychloroquine were started as initial therapy. One year later we added an immunosuppressant (Methotrexate) due to the persistence of clinical signs. Conclusion Our case is particular in that primary Gougerot-Sjögren Syndrome is rare in children. Routine follow- up with this patient is important to determine whether it is indeed pGSS with pediatric onset or GSS secondary to another autoimmune disease. %B RheumatologyRheumatology %V 60 %8 11 2021 %G eng %0 Journal Article %J Journal of King Saud University - Computer and Information SciencesJournal of King Saud University - Computer and Information Sciences %D 2021 %T A parallel content-based image retrieval system using spark and tachyon frameworks %A Mezzoudj, Saliha %A Behloul, Ali %A Seghir, Rachid %A Saadna, Yassmina %X With the huge increase of large-scale multimedia over Internet, especially images, building Content-Based Image Retrieval (CBIR) systems for large-scale images has become a big challenge. One of the drawbacks associated with CBIR is the very long execution time. In this article, we propose a fast Content-Based Image Retrieval system using Spark (CBIR-S) targeting large-scale images. Our system is composed of two steps. (i) image indexation step, in which we use MapReduce distributed model on Spark in order to speed up the indexation process. We also use a memory-centric distributed storage system, called Tachyon, to enhance the write operation (ii) image retrieving step which we speed up by using a parallel k-Nearest Neighbors (k-NN) search method based on MapReduce model implemented under Apache Spark, in addition to exploiting the cache method of spark framework. We have showed, through a wide set of experiments, the effectiveness of our approach in terms of processing time. %B Journal of King Saud University - Computer and Information SciencesJournal of King Saud University - Computer and Information Sciences %8 2021 %G eng %0 Book Section %B Artificial Neural Network Applications in Business and Engineering %D 2021 %T A Particle Swarm Optimization-Based Approach for Finding Reliability in a Total Hip Prosthesis %A Loubna, Bouakkar %A Hacene, Ameddah %A Hammoudi, Mazouz %B Artificial Neural Network Applications in Business and Engineering %I IGI Global %P 222-242 %8 2021 %G eng %0 Journal Article %J Materials for Renewable and Sustainable EnergyMaterials for Renewable and Sustainable Energy %D 2021 %T Passive solar house prototype design with a new bio-based material for a semi-arid climate %A Boulebbina, Cherif %A Ghazali Mebarki %A Samir RAHAL %B Materials for Renewable and Sustainable EnergyMaterials for Renewable and Sustainable Energy %P 1-15 %8 2021 %@ 2194-1467 %G eng %0 Journal Article %J Pediatric RheumatologyPediatric Rheumatology %D 2021 %T Pediatric rheumatology in Africa: thriving amidst challenges %A Migowa, Angela %A Djohra HADEF %A Hamdi, Wafa %A Mwizerwa, Oscar %A Ngandeu, Madeleine %A Taha, Yassmin %A Faleye, Ayodele %A Webb, Kate %A Scott, Christiaan %X Background Pediatric Rheumatology is an orphan specialty in Africa which is gradually gaining importance across the continent. Main body This commentary discusses the current state of affairs in the sphere of Pediatric Rheumatology across Africa and offers practical strategies to navigate the challenges encountered in research, models of care, education and training. We outline the establishment, opportunities of growth and achievements of the Pediatric Society of the African League Against Rheumatism (PAFLAR). Conclusion This commentary lays the foundation for establishment of a formidable framework and development of partnerships for the prosperity of Pediatric Rheumatology in Africa and beyond. %B Pediatric RheumatologyPediatric Rheumatology %V 19 %8 12 2021 %G eng %0 Journal Article %J International Journal of Ambient EnergyInternational Journal of Ambient Energy %D 2021 %T Performance analysis of a solar chimney power plant system in two Algeria regions %A Ali, Sellami %A Djaouida, Benlahcene %A Benmachiche, Abdelmoumène Hakim %A Aouachria, Zeroual %B International Journal of Ambient EnergyInternational Journal of Ambient Energy %P 1-12 %8 2021 %@ 0143-0750 %G eng %0 Journal Article %J Renewable Energy and Environmental SustainabilityRenewable Energy and Environmental Sustainability %D 2021 %T Performance analysis of AS-SOFC fuel cell combining single and sinusoidal flow field: numerical study %A Horr, Sabrina %A Mohcene, Hocine %A Bouguettaia, Hamza %A Hocine Ben Moussa %B Renewable Energy and Environmental SustainabilityRenewable Energy and Environmental Sustainability %V 6 %P 18 %8 2021 %@ 2493-9439 %G eng %0 Journal Article %D 2021 %T Performance Assessment of a New Gaussian-doped Junctionless ISFET: A Numerical Study %A Khadidja, Dibi %A Dibi Zohir %A Ahmed, Bouridane %8 2021 %G eng %0 Journal Article %J Journal of Nano-and Electronic PhysicsJournal of Nano-and Electronic Physics %D 2021 %T Performance Assessment of a New Gaussian-doped Junctionless ISFET: A Numerical Study %A Dibi, Khadidja %A Zohir Dibi %A Bouridane, Ahmed %B Journal of Nano-and Electronic PhysicsJournal of Nano-and Electronic Physics %V 13 %8 2021 %@ 2077-6772 %G eng %0 Journal Article %J Civil Engineering JournalCivil Engineering Journal %D 2021 %T Performance Assessment of Interaction Soil Pile Structure Using the Fragility Methodology %A Nesrine, Guettafi %A Djarir, Yahiaoui %A Khelifa, Abbeche %A Tayeb, Bouzid %B Civil Engineering JournalCivil Engineering Journal %V 7 %P 376-398 %8 2021 %@ 2476-3055 %G eng %0 Journal Article %J SiliconSilicon %D 2021 %T Performance Enhancement of Double Graphene-Gate Junctionless Radiation Sensitive FET (DGG JL RADFET) Dosimeter: Analytical Modeling and Design Optimization %A Meddour, A %A Meddour, F %A Drid, S %B SiliconSilicon %P 1-11 %8 2021 %@ 1876-9918 %G eng %0 Journal Article %J International Journal of Simulation and Process ModellingInternational Journal of Simulation and Process Modelling %D 2021 %T Performance evaluation of ODMAC protocol for WSNs powered by ambient energy %A Hmidi, Zohra %A KAHLOUL, Laid %A BENHARZALLAH, Saber %A Hamani, Nadia %B International Journal of Simulation and Process ModellingInternational Journal of Simulation and Process Modelling %V 17 %P 67-78 %8 2021 %@ 1740-2123 %G eng %0 Journal Article %J INTERNATIONAL ARAB JOURNAL OF INFORMATION TECHNOLOGYINTERNATIONAL ARAB JOURNAL OF INFORMATION TECHNOLOGY %D 2021 %T A Personalized Recommendation for Web API Discovery in Social Web of Things %A Meissa, Marwa %A BENHARZALLAH, Saber %A KAHLOUL, Laid %A Okba KAZAR %B INTERNATIONAL ARAB JOURNAL OF INFORMATION TECHNOLOGYINTERNATIONAL ARAB JOURNAL OF INFORMATION TECHNOLOGY %V 18 %P 438-445 %8 2021 %@ 1683-3198 %G eng %0 Journal Article %J Civil Engineering JournalCivil Engineering Journal %D 2021 %T Physico-mechanical Behaviors and Durability of Heated Fiber Concrete %A Benali, Redha %A Mellas, Mekki %A Baheddi, Mohamed %A Mansouri, Tarek %A Boufarh, Rafik %B Civil Engineering JournalCivil Engineering Journal %V 7 %P 1582-1593 %8 2021 %@ 2476-3055 %G eng %0 Journal Article %J Transportation Research Part A: Policy and PracticeTransportation Research Part A: Policy and Practice %D 2021 %T A policy-based solution for the detection of colluding GPS-Spoofing attacks in FANETs %A Bada, Mousaab %A Djallel Eddine Boubiche %A Nasreddine Lagraa %A Kerrache, Chaker Abdelaziz %A Imran, Muhammad %A Shoaib, Muhammad %B Transportation Research Part A: Policy and PracticeTransportation Research Part A: Policy and Practice %V 149 %P 300-318 %8 2021 %@ 0965-8564 %G eng %0 Journal Article %J Journal Européen des Systèmes AutomatisésJournal Européen des Systèmes Automatisés %D 2021 %T Position and speed estimation of PMSM based on extended Kalman filter tuned by biogeography-based-optimization %A Allaoui, Samia %A Laamari, Yahia %A Chafaa, Kheireddine %A Saad, Salah %B Journal Européen des Systèmes AutomatisésJournal Européen des Systèmes Automatisés %V 54 %P 559-568 %8 2021 %G eng %0 Journal Article %J Environmental Science and Pollution ResearchEnvironmental Science and Pollution Research %D 2021 %T Potentiation of the apoptotic signaling pathway in both the striatum and hippocampus and neurobehavioral impairment in rats exposed chronically to a low− dose of cadmium %A Chouit, Zeyneb %A Djellal, Dounia %A Haddad, Souhila %A HANFER, Mourad %A Hachemi, Messaoud %A Lakroun, Zhoura %A Chafaa, Smail %A Fetoui, Hamadi %A Kebieche, Mohamed %A Soulimani, Rachid %B Environmental Science and Pollution ResearchEnvironmental Science and Pollution Research %V 28 %P 3307-3317 %8 2021 %@ 1614-7499 %G eng %0 Journal Article %J Modeling Earth Systems and EnvironmentModeling Earth Systems and Environment %D 2021 %T Predetermination of flood flows by different methods: case of the catchment area of the Biskra Oued (North-East Algeria) %A Boumessenegh, Amel %A Hadda DRIDI %B Modeling Earth Systems and EnvironmentModeling Earth Systems and Environment %P 1-13 %8 2021 %@ 2363-6211 %G eng %0 Journal Article %J Ecotoxicology and Environmental SafetyEcotoxicology and Environmental Safety %D 2021 %T Predicting the consequences of accidents involving dangerous substances using machine learning %A Chebila, Mourad %B Ecotoxicology and Environmental SafetyEcotoxicology and Environmental Safety %V 208 %P 111470 %8 2021 %@ 0147-6513 %G eng %0 Journal Article %J Journal of Biological Research-Bollettino della Società Italiana di Biologia SperimentaleJournal of Biological Research-Bollettino della Società Italiana di Biologia Sperimentale %D 2021 %T Prevention of congenital malformations for pregnant women: A predictive model based on a study in eastern Algeria’s population %A Kalla, Adel %A Lotfi Loucif %A Yahia, Mouloud %B Journal of Biological Research-Bollettino della Società Italiana di Biologia SperimentaleJournal of Biological Research-Bollettino della Società Italiana di Biologia Sperimentale %V 94 %8 2021 %@ 2284-0230 %G eng %0 Conference Proceedings %B 2021 Wireless Days (WD) %D 2021 %T A Privacy-Preserving Authentication Model Based on Anonymous Certificates in IoT %A Hamouid, Khaled %A Omar, Mawloud %A Adi, Kamel %X This paper proposes an anonymity based mechanism for providing privacy in IoT environment. Proposed scheme allows IoT entities to anonymously interacting and authenticating with each other, or even proving that they have trustworthy relationship without disclosing their identities. Authentication is based on an anonymous certificates mechanism where interacting IoT entities could unlinkably prove possession of a valid certificate without revealing any incorporated identity-related information, thereby preserving their privacy and thwarting tracking and profiling attacks. Through a security analysis, we demonstrate the reliability of our solution. %B 2021 Wireless Days (WD) %I IEEE %P 1-6 %8 2021 %@ 1-66542-559-8 %G eng %U https://ieeexplore.ieee.org/abstract/document/9508298 %0 Journal Article %J International Journal of Behavioural and Healthcare ResearchInternational Journal of Behavioural and Healthcare Research %D 2021 %T Proposal of a novel approach to the assessment of patient safety culture %A Fourar, Youcef Oussama %A Djebabra, MEBAREK %A Wissal Benhassine %A Leila Boubaker %B International Journal of Behavioural and Healthcare ResearchInternational Journal of Behavioural and Healthcare Research %V 7 %P 175-186 %8 2021 %@ 1755-3539 %G eng %0 Journal Article %J International Journal of Workplace Health ManagementInternational Journal of Workplace Health Management %D 2021 %T Proposal of a temporality perspective for a successful organizational change project %A Wafa Boulagouas %A Rachid Chaib %A Djebabra, MEBAREK %B International Journal of Workplace Health ManagementInternational Journal of Workplace Health Management %8 2021 %@ 1753-8351 %G eng %0 Journal Article %J Engineering, Technology & Applied Science ResearchEngineering, Technology & Applied Science Research %D 2021 %T The Proposition of an EI Equation of Square and L–Shaped Slender Reinforced Concrete Columns under Combined Loading %A Hamzaoui, Leila %A Tayeb Bouzid %B Engineering, Technology & Applied Science ResearchEngineering, Technology & Applied Science Research %V 11 %P 7100-7106 %8 2021 %@ 1792-8036 %G eng %0 Journal Article %J IEEE Engineering Management ReviewIEEE Engineering Management Review %D 2021 %T Proposition of Scales for Occupational Risk and Resilience Assessment of COVID-19: The Case of Algeria %A Leila Boubaker %A Ouazraoui, Nouara %A Mohammed, Antar Si %A Touahar, Hafed %A Ducq, Yves %B IEEE Engineering Management ReviewIEEE Engineering Management Review %V 49 %P 33-44 %8 2021 %@ 0360-8581 %G eng %0 Journal Article %J Iranian Journal of Science and Technology, Transactions A: ScienceIranian Journal of Science and Technology, Transactions A: Science %D 2021 %T Protection of Steel Against Corrosion in Acid Medium Using Dihydropyrimidinone Derivatives: Experimental and DFT Study %A Mammeri, Samia %A Chafai, Nadjib %A Harkat, Hassina %A Rachida, Kerkour %A Chafaa, Salah %X Two dihydropyrimidinone derivatives (DHPM) were synthesized via the multi-component reaction, the yield of the synthesis reached 90%, and their structures were proved by IR, 1H and 13C NMR spectroscopy. The identified molecules were used for studying the corrosion inhibition of XC48 carbon steel in 0.5 mol L-1 H2SO4 solution. The inhibitory potentials of these compounds were determined by electrochemical methods exploiting the potentiodynamic polarization curves (Tafel method) and electrochemical impedance spectroscopy. Surface phenomena have been illustrated by atomic force microscopy. The results obtained show that the synthesized molecules are effective inhibitors, whose efficiency corrosion inhibition depends on the architecture of their structure, and it is proportional to the concentrations; it exceeds 94% for one of these inhibitors. The adsorption of these compounds on the metal surface approached the Langmuir’s adsorption isotherm. Furthermore, the electronic properties obtained using density function theory are in a good consensus with the experimental efficiencies of inhibition. The molecular dynamics simulations have allowed also simulating the interactions between the inhibitors and the metallic surface. %B Iranian Journal of Science and Technology, Transactions A: ScienceIranian Journal of Science and Technology, Transactions A: Science %V 45 %8 05 2021 %G eng %0 Journal Article %J Biological Trace Element ResearchBiological Trace Element Research %D 2021 %T Protective Effects of Selenium and Zinc Against Nickel Chloride–Induced Hormonal Changes and Oxidative Damage in Thyroid of Pregnant Rats %A Salah, Imane %A Adjroud, Ounassa %A Elwej, Awatef %X Nickel chloride (NiCl2) is a heavy metal that may affect the function of the thyroid. Selenium (Se) and zinc (Zn) are essential trace elements involved in thyroid hormone metabolism. However, little is reported about thyrotoxicity during gestation. The current study aimed to investigate the protective effects of selenium and zinc against NiCl2-induced thyrotoxicity in pregnant Wistar rats. Female rats were treated subcutaneously (s.c.) on the 3rd day of pregnancy, with NaCl 0.9% and served as control, NiCl2 (100 mg/kg body weight (BW)) alone, or in association with Se (0.3 mg/kg, s.c.), ZnCl2 (20 mg/kg, s.c.), or both of them simultaneously. Oxidative stress parameters, thyroid biomarkers, and histopathological examination were evaluated. Results showed that NiCl2 exposure caused a significant decrease in maternal body weight and an increase in absolute and relative thyroid weight compared to the controls. NiCl2 administration also led to decreased plasma triiodothyronine (T3) and thyroxine (T4) with a concomitant significant increase in thyroid-stimulating hormone (TSH) levels when compared to that of control. In addition, an overall pro-oxidant effect was associated with a decrease in the reduced glutathione (GSH) and nonprotein thiol (NPSH) contents and the enzymatic activity of glutathione peroxidase (GPx) and superoxide dismutase (SOD), and an increase in malondialdehyde (MDA). These biochemical disturbances were confirmed by histological changes. However, the co-treatment of Se and/or ZnCl2 attenuates NiCl2-induced changes. Our findings suggested that Se and ZnCl2 ameliorated NiCl2-induced thyrotoxicity in pregnant Wistar rats by exhibiting antioxidant effects. %B Biological Trace Element ResearchBiological Trace Element Research %V 155 %8 2021 %G eng %0 Journal Article %J Biological Trace Element ResearchBiological Trace Element Research %D 2021 %T Protective effects of selenium and zinc against nickel chloride–induced hormonal changes and oxidative damage in thyroid of pregnant rats %A Salah, Imane %A Adjroud, Ounassa %A Elwej, Awatef %B Biological Trace Element ResearchBiological Trace Element Research %P 1-12 %8 2021 %@ 1559-0720 %G eng %0 Journal Article %J Environmental Science and Pollution ResearchEnvironmental Science and Pollution Research %D 2021 %T Protective effects of selenium and zinc against potassium dichromate–induced thyroid disruption, oxidative stress, and DNA damage in pregnant Wistar rats %A Fedala, Anfal %A Adjroud, Ounassa %A Abid-Essefi, Salwa %A Timoumi, Rim %B Environmental Science and Pollution ResearchEnvironmental Science and Pollution Research %V 28 %P 22563-22576 %8 2021 %@ 1614-7499 %G eng %0 Journal Article %J Environmental Science and Pollution ResearchEnvironmental Science and Pollution Research %D 2021 %T Protective effects of selenium and zinc against potassium dichromate–induced thyroid disruption, oxidative stress, and DNA damage in pregnant Wistar rats %A Fedala, Anfal %A Adjroud, Ounassa %A Abid-Essefi, Salwa %A Timoumi, Rim %X Hexavalent chromium (CrVI) is an environmental pollutant and an endocrine-disrupting metal. Se and Zn are essential trace elements, known to play a crucial role in thyroid homeostasis. However, there is a lack of data reporting thyrotoxicity during gestation. In this study, we investigated the protective effects of selenium and zinc against potassium dichromate–induced thyrotoxicity in pregnant Wistar rats. Thirty pregnant Wistar rats were divided into control and four treated groups receiving subcutaneously (s.c) on the 3rd day of pregnancy, K2Cr2O7 (10 mg/kg, s.c) alone, or in association with Se (0.3 mg/kg, s.c), ZnCl2 (20 mg/kg, s.c), or both of them simultaneously. The hormonal profile, oxidative stress biomarkers, DNA damage, and histological modifications were evaluated. Our main findings showed that K2Cr2O7 promoted hypothyroidism, oxidative stress, genotoxicity, and histological alterations in the thyroid gland. The co-treatment with Se or ZnCl2 has mitigated K2Cr2O7-induced thyrotoxicity in pregnant Wistar rats by exhibiting antioxidant and genoprotective effects. However, the combined co-treatment of both of them was less thyroprotective, and therefore, further investigations on the synergetic interaction of Se and Zn against CrVI toxicity using different doses and exposure routes are required. %B Environmental Science and Pollution ResearchEnvironmental Science and Pollution Research %V 28 %P 22563–22576 %8 2021 %G eng %0 Journal Article %J International Journal of River Basin ManagementInternational Journal of River Basin Management %D 2021 %T Quality assessment of shallow groundwater for irrigation purposes in Tadjenanet–Chelghoum Laid area (Eastern Algeria) %A Khedidja, Abdelhamid %A Boudoukha, Abderrahmane %B International Journal of River Basin ManagementInternational Journal of River Basin Management %V 19 %P 141-148 %8 2021 %@ 1571-5124 %G eng %0 Journal Article %J Journal of Superconductivity and Novel MagnetismJournal of Superconductivity and Novel Magnetism %D 2021 %T Refined Approach in Jiles-Atherton Model for Ferromagnetic Sheet Under the Tensile Stress %A Ikhlef, M %A Bendjerad, A %A Boukhtache, S %A Abdelhadi, B %A Lahmar, A %B Journal of Superconductivity and Novel MagnetismJournal of Superconductivity and Novel Magnetism %V 34 %P 227-234 %8 2021 %@ 1557-1947 %G eng %0 Journal Article %J International Journal of Quality & Reliability ManagementInternational Journal of Quality & Reliability Management %D 2021 %T Reliability degradation prediction of photovoltaic modules based on dependability methods %A Hadef Hefaidh %A Djebabra Mébarek %A Belkhir Negrou %A Driss, Zied %B International Journal of Quality & Reliability ManagementInternational Journal of Quality & Reliability Management %8 2021 %@ 0265-671X %G eng %0 Journal Article %J International Journal of Swarm Intelligence Research (IJSIR)International Journal of Swarm Intelligence Research (IJSIR) %D 2021 %T A Reliable Behavioral Model: Optimizing Energy Consumption and Object Clustering Quality by Naïve Robots %A Aouadj, Wafa %A Abdessemed, Mohamed-Rida %A Seghir, Rachid %B International Journal of Swarm Intelligence Research (IJSIR)International Journal of Swarm Intelligence Research (IJSIR) %V 12 %P 125-145 %8 2021 %G eng %0 Journal Article %J arXiv preprint arXiv:2110.14208arXiv preprint arXiv:2110.14208 %D 2021 %T Remarks on the global well-posedness of the axisymmetric Boussinesq system with rough initial data %A Hanachi, Adalet %A Houamed, Haroune %A Zerguine, Mohamed %B arXiv preprint arXiv:2110.14208arXiv preprint arXiv:2110.14208 %8 2021 %G eng %0 Book Section %B Advances on Smart and Soft Computing %D 2021 %T Robust and Accurate Method for Textual Information Extraction Over Video Frames %A Soundes Belkacem %A Larbi GUEZOULI %B Advances on Smart and Soft Computing %I Springer %P 119-129 %8 2021 %G eng %0 Conference Proceedings %B 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %D 2021 %T Robust Stabilization of Infinite Dimensional Systems Subjected to Stochastic and Deterministic Perturbations %A Amira, Kameche %A Maissa, Kada %X This paper deals with the robust stabilization of infinite dimensional systems subjected to stochastic and deterministic perturbations. First, we give conditions providing the stability of the parameterized system. Then, we investigate the maximization of the stability radius by state feedback. We establish conditions for the existence of suboptimal controllers. Using these conditions we characterize the supreme achievable stability radius via an infinite dimensional Riccati equation. %B 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI) %I IEEE %P 1-4 %8 2021 %@ 1-66544-171-2 %G eng %U https://ieeexplore.ieee.org/abstract/document/9585901 %0 Journal Article %J The American Journal of Tropical Medicine and HygieneThe American Journal of Tropical Medicine and Hygiene %D 2021 %T Salmonella Bloodstream Infections in Hospitalized Children with Acute Febrile Illness-Uganda, 2016-2019. %A Appiah, Grace D %A Mpimbaza, Arthur %A Lamorde, Mohammed %A Freeman, Molly %A Kajumbula, Henry %A Salah, Zainab %A Kugeler, Kiersten %A Mikoleit, Matthew %A White, Porscha Bumpus %A Kapisi, James %B The American Journal of Tropical Medicine and HygieneThe American Journal of Tropical Medicine and Hygiene %8 2021 %@ 0002-9637 %G eng %0 Journal Article %J Security and PrivacySecurity and Privacy %D 2021 %T Securing human‐to‐thing interactions in the Internet of Things with asymmetric and selective mechanism %A Somia Sahraoui %A Azeddine Bilami %B Security and PrivacySecurity and Privacy %V 4 %P e38 %8 2021 %@ 2475-6725 %G eng %0 Journal Article %J Civil Engineering JournalCivil Engineering Journal %D 2021 %T Seismic Fragility Curves for Performance of Semi-rigid Connections of Steel Frames %A SAADI, Mohamed %A Yahiaoui, Djarir %A Lahbari, Noureddine %A Tayeb, Bouzid %B Civil Engineering JournalCivil Engineering Journal %V 7 %P 1112-1124 %8 2021 %@ 2476-3055 %G eng %0 Journal Article %J International Journal of Embedded and Real-Time Communication Systems (IJERTCS)International Journal of Embedded and Real-Time Communication Systems (IJERTCS) %D 2021 %T A Self-Organized Scheduling Algorithm for Embedded Real-Time Systems %A Bendib, Sonia Sabrina %A Kalla, Hamoudi %A Kalla, Salim %A Hocine, Riadh %B International Journal of Embedded and Real-Time Communication Systems (IJERTCS)International Journal of Embedded and Real-Time Communication Systems (IJERTCS) %V 12 %P 57-73 %8 2021 %G eng %0 Journal Article %J arXiv preprint arXiv:2101.11126arXiv preprint arXiv:2101.11126 %D 2021 %T Self-stabilizing Algorithm for Maximal Distance-2 Independent Set %A Badreddine Benreguia %A Hamouma Moumen %A Bouam, Soheila %A Chafik Arar %B arXiv preprint arXiv:2101.11126arXiv preprint arXiv:2101.11126 %8 2021 %G eng %0 Journal Article %J IEEE Transactions on Energy ConversionIEEE Transactions On Energy Conversion %D 2021 %T A Semi-supervised Deep Transfer Learning Approach for Rolling-Element Bearing Remaining Useful Life Prediction %A Berghout, Tarek %A Mouss, Leila-Hayet %A Bentrcia, Toufik %A Benbouzid, Mohamed %B IEEE Transactions on Energy ConversionIEEE Transactions On Energy Conversion %8 2021 %@ 0885-8969 %G eng %0 Conference Proceedings %B Proceedings of the International Conference on Civil, Offshore and Environmental Engineering %D 2021 %T A Sensitivity Parameters on Inelastic Response of Interaction Soil-Pile-Structure System Under Lateral Loading %A Sekhri, Khadidja %A Yahiaoui, Djarir %A Harahap, Indra Sati Hamonangan %X Soil-structure interaction is the key to study the behavior of the structure under static or dynamic loading. The pile foundation is adopted to transfer the load from the structure to the soil when the structure is embedded in a weak soil stratum. Soil-pile system has a nonlinear behavior, thus, it is more complicated to understand. This study focuses on the numerical investigations of interaction soil–pile–structure system (ISPS) and interaction soil–pile system (ISP) under lateral loads. The nonlinear static analysis is carried out considering the lateral capacity of ISPS and ISP system under lateral loading using the pushover analysis, with a parametric study. The results show that in most cases, the lateral capacity of the fixed system is low compared to lateral capacity in ISPS system when increasing the axial load, pile diameter and length of the pile in all types of sand. %B Proceedings of the International Conference on Civil, Offshore and Environmental Engineering %I Springer %P 1020-1026 %8 2021 %G eng %U https://link.springer.com/chapter/10.1007/978-981-33-6311-3_115 %0 Conference Proceedings %B IECON 2021–47th Annual Conference of the IEEE Industrial Electronics Society %D 2021 %T Sequence-To-Sequence Health Index Estimation of Rolling Bearings with Long-Short Term Memory and Transfer Learning %A Berghout, Tarek %A Benbouzid, Mohamed %A Mouss, Leïla-Hayet %X One of the main data-driven challenges when assessing bearing health is that training and test samples must be drawn from the same probability distribution. Indeed, it is difficult and almost rare to witness such a phenomenon in practical applications due to the constantly changing working conditions of rotating machines. In addition, collecting sufficient deterioration samples from the bearing life cycle is not possible due to the huge memory requirements and processing costs. As a result, accelerated life tests are believed to be the primary alternatives to such a situation. However, and unfortunately, the recorded samples always are subject to lack of real patterns. Therefore, in this paper, a transfer learning approach is performed to solve such kind of problem where PRONOSTICO dataset is used to assess the current procedures. %B IECON 2021–47th Annual Conference of the IEEE Industrial Electronics Society %I IEEE %C Toronto, Canada %P 1-5 %8 2021 %@ 1-66543-554-2 %G eng %U https://ieeexplore.ieee.org/abstract/document/9589114 %0 Journal Article %J BMJ openBMJ open %D 2021 %T Seroprevalence of SARS-CoV-2 in the West Bank region of Palestine: a cross-sectional seroepidemiological study %A Qutob, Nouar %A Awartani, Faisal %A Salah, Zaidoun %A Asia, Mohammad %A Khader, Imad Abu %A Herzallah, Khaled %A Balqis, Nadeen %A Sallam, Husam %B BMJ openBMJ open %V 11 %P e044552 %8 2021 %@ 2044-6055 %G eng %0 Journal Article %J Multimedia Tools and ApplicationsMultimedia Tools and Applications %D 2021 %T A set of statistical radial binary patterns for tree species identification based on bark images %A Boudra, Safia %A Yahiaoui, Itheri %A Behloul, Ali %B Multimedia Tools and ApplicationsMultimedia Tools and Applications %V 80 %P 22373-22404 %8 2021 %@ 1573-7721 %G eng %0 Journal Article %J Sensors and Actuators A: PhysicalSensors and Actuators A: Physical %D 2021 %T Significant improvement of infrared graphene nanoribbon phototransistor performance: A quantum simulation study %A Abdi, MA %A Bencherif, H %A Bendib, T %A Meddour, F %A Chahdi, M %B Sensors and Actuators A: PhysicalSensors and Actuators A: Physical %V 317 %P 112446 %8 2021 %@ 0924-4247 %G eng %0 Journal Article %J International Journal of Internet Manufacturing and ServicesInternational Journal of Internet Manufacturing and Services %D 2021 %T SOA-based distributed fault prognostic and diagnosis framework: an application for preheater cement cyclones %A Chouhal, Ouahiba %A Mahdaoui, Rafik %A Leila Hayet Mouss %B International Journal of Internet Manufacturing and ServicesInternational Journal of Internet Manufacturing and Services %V 8 %P 1-18 %8 2021 %@ 1751-6048 %G eng %0 Journal Article %J Numerical Algebra, Control & OptimizationNumerical Algebra, Control & Optimization %D 2021 %T Some representations of moore-penrose inverse for the sum of two operators and the extension of the fill-fishkind formula %A Kara, Abdessalam %A Guedjiba, Said %B Numerical Algebra, Control & OptimizationNumerical Algebra, Control & Optimization %8 2021 %G eng %0 Journal Article %J Agricultural Water ManagementAgricultural Water Management %D 2021 %T Spatial and temporal variability of water stress risk in the Kebir Rhumel Basin, Algeria %A Belkhiri, Lazhar %B Agricultural Water ManagementAgricultural Water Management %V 253 %P 106937 %8 2021 %@ 0378-3774 %G eng %0 Journal Article %J Mathematical Methods in the Applied SciencesMathematical Methods in the Applied Sciences %D 2021 %T Stability of the transmission plate equation with a delay term in the moment feedback control %A Ghecham, Wassila %A Rebiai, Salah‐Eddine %A Ali, Fatima Zohra Sidi %B Mathematical Methods in the Applied SciencesMathematical Methods in the Applied Sciences %V 44 %P 7676-7692 %8 2021 %@ 0170-4214 %G eng %0 Conference Proceedings %B International Conference on Research in Applied Mathematics and Computer Science %D 2021 %T The stability radius of an infinite dimensional system subjected to stochastic unbounded structured multi-perturbations with application %A Amina, Heddar %A Maissa, Kada %X The issue of robustness of stability has been prominent in the literature on control theory over the last two decades. An important state-space approach to robustness analysis is the stability radii theory. The robust stability problems of infinite dimensional systems subjected to stochastic bounded structured perturbations have been studied using the stability radius approach. In the applications it is important to study these problems in the case where the perturbations operator structure are unbounded, because it covers the case of partial differential equations with boundary and ... %B International Conference on Research in Applied Mathematics and Computer Science %I ICRAMCS 2021 %V 2021 %8 2021 %@ 2605-7700 %G eng %U https://icramcs2021.sciencesconf.org/data/icramcs2021_paper_196.html %0 Journal Article %J Applicable AnalysisApplicable Analysis %D 2021 %T Stabilization of coupled wave equations with boundary or internal distributed delay %A Ghecham, Wassila %A Rebiai, Salah-Eddine %A Ali, Fatima Zohra Sidi %B Applicable AnalysisApplicable Analysis %V 100 %P 3096-3115 %8 2021 %@ 0003-6811 %G eng %0 Journal Article %J Journal of Applied AnalysisJournal of Applied Analysis %D 2021 %T Stabilization of the wave equation with a nonlinear delay term in the boundary conditions %A Ghecham, Wassila %A Rebiai, Salah-Eddine %A SidiAli, Fatima-Zohra %X

A wave equation in a bounded and smooth domain of Rnℝ with a delay term in the nonlinear boundary feedback is considered. Under suitable assumptions, global existence and uniform decay rates for the solutions are established. The proof of existence of solutions relies on a construction of suitable approximating problems for which the existence of the unique solution will be established using nonlinear semigroup theory and then passage to the limit gives the existence of solutions to the original problem. The uniform decay rates for the solutions are obtained by proving certain integral inequalities for the energy function and by establishing a comparison theorem which relates the asymptotic behavior of the energy and of the solutions to an appropriate dissipative ordinary differential equation.

%B Journal of Applied AnalysisJournal of Applied Analysis %8 2021 %@ 1869-6082 %G eng %U https://www.degruyter.com/document/doi/10.1515/jaa-2021-2051/html %0 Journal Article %J U.P.B. Sci. Bull., Series CU.P.B. Sci. Bull., Series C %D 2021 %T STRATÉGIE DE CONTRÔLE NON LINÉAIRE OPTIMISÉE POUR LE GÉNÉRATEUR SYNCHRONE À AIMANT PERMANENT (GSAP) DANS LE SYSTÈME DE CONVERSION DE L&⋕39;ÉNERGIE ÉOLIENNE (SCEE) %A ZARROUKI, Mohamed-Baha-Eddine %A Said Benaggoune %A Abdessemed, Rachid %X L’article décrit la conception et la mise en øeuvre en temps réel d’une commande non linéaire appliquée à un système de conversion de l’énergie éolienne (SCEE). La commande backstepping a été mise en øeuvre pour améliorer les performances du système de conversion éolienne basé sur un générateur synchrone à aimants permanents (PMSG) connecté au réseau. Deux convertisseurs statiques assurent la connexion au réseau et sont contrôlés par la modulation de largeur d’impulsion (MLI). L’algorithme de contrôle proposé assure un contrôle de vitesse adéquat pour extraire la puissance maximale. Une description détaillée des lois de contrôle du backstepping basées sur la technique de stabilité de Lyapunov a été exposée. Les résultats obtenus par l’application de cette approche ont clairement répondu aux exigences de robustesse et de suivi des références même dans des conditions de vent fluctuants, et ont confirmé l’efficacité d’un tel contrôle dans les modes de fonctionnement statique et dynamique. %B U.P.B. Sci. Bull., Series CU.P.B. Sci. Bull., Series C %V 83 %8 2021 %G eng %0 Journal Article %J Journal of Bioresource ManagementJournal of Bioresource Management %D 2021 %T Structure and Parasitism of Egg-Batches of the Pine Processionary Moth, Thaumetopoea Pityocampa in the Algerian Cedar Forests. %A Messaadia, Zineb %A Nabil Bertella %A Frah, Naama %B Journal of Bioresource ManagementJournal of Bioresource Management %V 8 %P 13 %8 2021 %@ 2309-3854 %G eng %0 Journal Article %J Revue des Composites et des Matériaux AvancésRevue des Composites et des Materiaux Avances %D 2021 %T A Study of the Thermo-Mechanical Behavior of a Gas Turbine Blade in Composite Materials Reinforced with Mast. %A Khalid, Faiza %A Rabah, Manaa %A Salah, Saad %A Hacene, Ameddah %B Revue des Composites et des Matériaux AvancésRevue des Composites et des Materiaux Avances %V 31 %8 2021 %@ 1169-7954 %G eng %0 Journal Article %J Journal of Renewable EnergiesJournal of Renewable Energies %D 2021 %T Study of two-dimensional transient heat transfer through a multi-layers wall: Application to the buildings thermal insulation %A Tamene, Youcef %A Boulebbina, Cherif %B Journal of Renewable EnergiesJournal of Renewable Energies %V 24 %P 214-229 %8 2021 %@ 2716-8247 %G eng %0 Journal Article %D 2021 %T Super Twisting Algorithm Direct Power Control of DFIG Using Space Vector Modulation %A Mazouz, Farida %A Sebti Belkacem %8 2021 %G eng %0 Journal Article %J Protection and Control of Modern Power SystemsProtection and Control of Modern Power Systems %D 2021 %T Super twisting sliding mode approach applied to voltage orientated control of a stand-alone induction generator %A BENDJEDDOU, YACINE %A Deboucha, Abdelhakim %A Bentouhami, Larafi %A MERABET, ELKHEIR %A Abdessemed, Rachid %X To enhance the robustness and dynamic performance of a self-excited induction generator (SEIG) used in a stand-alone wind energy system (WES), a virtual flux oriented control (VFOC) based on nonlinear super-twisting sliding mode control (STSMC) is adopted. STSMC is used to replace the conventional proportional-integral-Fuzzy Logic Controller (PI-FLC) of the inner current control loops. The combination of the proposed control strategy with space vector modulation (SVM) applied to a PWM rectifier brings many advantages such as reduction in harmonics, and precise and rapid tracking of the references. The performance of the proposed control technique (STSMC-VFOC-SVM) is verified through simulations and compared with the traditional technique (PI-FLC-VFOC-SVM). It shows that the proposed method improves the dynamics of the system with reduced current harmonics. In addition, the use of a virtual flux estimator instead of a phase-locked loop (PLL) eliminates the line voltage sensors and thus increases the reliability of the system. %B Protection and Control of Modern Power SystemsProtection and Control of Modern Power Systems %V 6 %P 18 %8 12 2021 %G eng %0 Journal Article %J Journal of Electronic MaterialsJournal of Electronic Materials %D 2021 %T Synthesis, Characterization, Linear and NLO Properties of Novel N-(2, 4-Dinitrobenzylidene)-3-Chlorobenzenamine Schiff Base: Combined Experimental and DFT Calculations %A Benmohammed, Abdelmadjid %A Hadji, Djebar %A Guendouzi, Abdelkrim %A Mouchaal, Younes %A Djafri, Ayada %A Khelil, Abdelbasset %B Journal of Electronic MaterialsJournal of Electronic Materials %V 50 %P 5282-5293 %8 2021 %@ 1543-186X %G eng %0 Journal Article %J GeoJournalGeoJournal %D 2021 %T Territorial health approach outputs of geo-governance of health facilities: case study of Batna, Algeria %A Belkacem Lahmar %A Hadda DRIDI %A Ahmed Akakba %B GeoJournalGeoJournal %V 86 %P 2305-2319 %8 2021 %@ 1572-9893 %G eng %0 Journal Article %D 2021 %T Théorie des nombres: Sur les suites primitives %A Rezzoug, Nadir %8 2021 %G eng %0 Book Section %B Hydrogen Fuel Cell Technology for Stationary Applications %D 2021 %T Three-Dimensional Numerical Study of Overheating of Two Intermediate Temperature P-AS-SOFC Geometrical Configurations %A Youcef Sahli %A Zitouni, Bariza %A Hocine, Ben Moussa %B Hydrogen Fuel Cell Technology for Stationary Applications %I IGI Global %P 186-222 %8 2021 %G eng %0 Conference Proceedings %B 2021 IEEE/ACS 18th International Conference on Computer Systems and Applications (AICCSA) %D 2021 %T Towards a non monotonic agent testing %A Douha, Djamel %A Mokhtari, Aicha %A Guessoum, Zahia %A Mandiau, René %X Multi-agent systems research community has developed solutions to model dynamic and complex systems. Those solutions have generated a growing interest in a variety of domains such as robotics or distributed controls. It is therefore important to build solutions to analyze the basic mechanisms of multi-agent systems such as interaction. In this paper, we formalize the epistemic interaction, we propose to use default theory to describe state transitions. The introduction of such semantics allows characterizing the verification of agent behavior when dealing with new information. Therefore, we introduce semantics to establish a basis for exploiting the properties of the agent behavior and its messages.We propose to formalize and verify the response of an agent when it receives a new information from another agent of its environment. Our approach extends the actions initiated in the mA * [5] language by applying the Reiter’s default rules [32]. A simple example is used to illustrate our approach. %B 2021 IEEE/ACS 18th International Conference on Computer Systems and Applications (AICCSA) %I IEEE %P 1-8 %8 2021 %@ 1-66540-969-X %G eng %U https://ieeexplore.ieee.org/abstract/document/9686931 %0 Conference Paper %B 8th ACS/IEEE International Conference on Computer Systems and Applications AICCSA 2021 %D 2021 %T Towards a non monotonic agent testing, reasoning about messages and behavior %A Douha, Djamel %A Mokhtari, Aicha %A Guessoum, Zahia %B 8th ACS/IEEE International Conference on Computer Systems and Applications AICCSA 2021 %8 2021 %G eng %U https://hal.archives-ouvertes.fr/hal-03381954/ %0 Book Section %B Intelligent Computing %D 2021 %T Towards Digital Twins Driven Breast Cancer Detection %A Meraghni, Safa %A Benaggoune, Khaled %A Al Masry, Zeina %A Terrissa, Labib Sadek %A Devalland, Christine %A Zerhouni, Noureddine %B Intelligent Computing %I Springer %P 87-99 %8 2021 %G eng %0 Journal Article %J Pakistan Journal of Statistics and Operation ResearchPakistan Journal of Statistics and Operation Research %D 2021 %T A Two Parameters Rani Distribution: Estimation and Tests for Right Censoring Data with an Application %A Al-Omari, Amer Ibrahim %A Aidi, Khaoula %A Seddik-Ameur, Nacira %B Pakistan Journal of Statistics and Operation ResearchPakistan Journal of Statistics and Operation Research %P 1037-1049 %8 2021 %@ 2220-5810 %G eng %0 Journal Article %J Hydrological Sciences JournalHydrological Sciences Journal %D 2021 %T Using vadose-zone water stable isotope profiles for assessing groundwater recharge under different climatic conditions %A Boumaiza, Lamine %A Chesnaux, Romain %A Drias, Tarek %A Walter, Julien %A Stumpp, Christine %X

Considering three sites under different climate conditions (arid, semi-arid, and subhumid), this study aims to use the vadose-zone water stable isotope profiles to estimate the groundwater recharge rate. High-resolution vertical subsurface soil sampling along the vadose zone of the investigated sites was conducted. The collected samples were analysed to determine their stable isotope ratios (δ2H and δ18O) that were used along with the piston displacement method to estimate recharge. Annual recharge rates of 0.2% (± 0.1%), 2.5%, and 18% of the total annual precipitation were obtained for the arid, semi-arid, and subhumid sites, respectively. Recharge rates at the semi-arid and subhumid sites are comparable to those previously estimated using water balance-based methods. The recharge rate at the arid site is lower than that previously estimated for that site using the water budget-based method, revealing difficulties in applying the piston displacement method under an arid regime.

%B Hydrological Sciences JournalHydrological Sciences Journal %V 66 %P 1597-1609 %8 2021 %@ 0262-6667 %G eng %U https://www.tandfonline.com/doi/abs/10.1080/02626667.2021.1957479?journalCode=thsj20 %N 10 %0 Journal Article %J MicroorganismsMicroorganisms %D 2021 %T Vegetables and Fruit as a Reservoir of β-Lactam and Colistin-Resistant Gram-Negative Bacteria: A Review %A Chelaghma, Widad %A Lotfi Loucif %A Bendahou, Mourad %A Jean-Marc Rolain %B MicroorganismsMicroorganisms %V 9 %P 2534 %8 2021 %G eng %0 Journal Article %J Analele Universităţii din Oradea, Seria GeografieAnalele Universităţii din Oradea, Seria Geografie %D 2021 %T The Vertical Distribution of the Alluvial Chemo-Facies of Boumerzoug Wadi, Constantine, Northeastern Algeria: Paleoenveromental Significance and Climate Evolution %A Rabahi, N %A Djaiz, F %A Defaflia, N %A Guastaldi, E %A Amroune, A %B Analele Universităţii din Oradea, Seria GeografieAnalele Universităţii din Oradea, Seria Geografie %V 31 %P 68-79 %8 2021 %G eng %0 Journal Article %J Geotechnical and Geological EngineeringGeotechnical and Geological Engineering %D 2021 %T The Wall Behaviour in the Contiguous Drilled Piles Reinforced by Anchors in 3D the “case study” of Ain-Naadja Metro Station–(Algiers) %A Kiyyour, Sami %A Karech, Toufik %B Geotechnical and Geological EngineeringGeotechnical and Geological Engineering %V 39 %P 2945-2953 %8 2021 %@ 1573-1529 %G eng %0 Journal Article %J International Journal of Emerging Technologies in LearningInternational Journal of Emerging Technologies in Learning %D 2021 %T Web-Based Learning Under Tacit Mining of Various Data Sources. %A Abdelouahab BELAZOUI %A Abdelmoutia Telli %A Chafik Arar %B International Journal of Emerging Technologies in LearningInternational Journal of Emerging Technologies in Learning %V 16 %8 2021 %@ 1863-0383 %G eng %0 Journal Article %J Malaysian Journal Of Biochemistry & Molecular BiologyMalaysian Journal Of Biochemistry & Molecular Biology %D 2021 %T ZINC ALLEVIATES POTASSIUM DICHROMATE-INDUCED HEPATOTOXICITY IN PREGNANT WISTAR RATS %A Fedala, Anfal %A Ounassa, ADJROUD %A Saouli, Asma %A Imane, Salah %X The present study aimed to investigate the potential protective effects of zinc (Zn) against hexavalent chromium-induced hepatotoxicity in pregnant Wistar rats. Female rats were treated subcutaneously (s.c) on the 3 rd day of pregnancy, with NaCl 0.9 % and served as control, K2Cr2O7 (10 mg/kg bw) alone, or K2Cr2O7 in association with ZnCl2 (20 mg/kg bw). Hepatic biochemical parameters, oxidative stress biomarkers and DNA damage were monitored. Results revealed that K2Cr2O7 disturbed plasma ALT, AST, ALP and GGT, induced hepatic oxidative stress and DNA fragmentation. The co-treatment with Zn has alleviated K2Cr2O7-induced hepatotoxicity by exhibiting antioxidant and genoprotective effects in pregnant Wistar rats. %B Malaysian Journal Of Biochemistry & Molecular BiologyMalaysian Journal Of Biochemistry & Molecular Biology %V 2 %P 10-16 %8 2021 %G eng %0 Journal Article %J Geomatics, Landmanagement and Landscape %D 2021 %T Analysis and modelling of territorial vulnerability to epidemiological diseases in the Wilaya of Batna (Algeria) – case of tuberculosis %A Asma, Douha %A Kalla Mahdi %X

Some epidemiological situations, because of their magnitude and their propagation dynamics, can escape local or national control. For example, the world is currently experiencing an uncontrollable cross-border spread of the corona virus (Covid-19). The Wilaya of Batna is among the most affected in Algeria by many epidemiological diseases, including tuberculosis, which raises questions about possible causal links between this contagious and often fatal disease and the environmental and socio-economic reality of this territory. We based our study on a number of factors, covering economic, societal and health aspects, which constitute indicators of the standard of living in each of the 61 communes of the Wilaya of Batna. The relationship between the epidemiological status of tuberculosis in these communes and these indicators showed significant correlations and thus confirmed the reliability of the choice of parameters of vulnerability to tuberculosis. To understand their interaction and impact on the disease and its spatial distribution, we used the hierarchical multicriteria analysis (AHP) method, the results of which were implemented in a GIS database. The aim was to provide health and territorial decision makers with a decision support tool. The results show that the spatial distribution of tuberculosis cases which reappeared in the Wilaya of Batna after its eradication since years is in good correlation with the socio-economic situation of each commune of the territory and confirm that this scourge of tuberculosis is closely linked to the degradation of the living conditions of the inhabitants.

%B Geomatics, Landmanagement and Landscape %V 4 %P 31-45 %G eng %U https://yadda.icm.edu.pl/yadda/element/bwmeta1.element.baztech-71fdb043-eea5-489c-93f1-17a757151b61 %0 Journal Article %J International Journal of Human Settlements %D 2021 %T ANTI-HYPERGLYCEMIC ACTIVITY OF CENTAUREA TOUGOURENSIS %A Dassamiour, Saliha %A Hambaba, Leila %A Bensaad ,Mohamed-Sabri %X

In the last decade, the number of diabetic persons has considerably increased and the scientific community approach to understand this complex pathology has become very difficult due to the fact that diabetes is linked to other illnesses which can generate serious complications like glaucoma, nerve damage. Plants are considered new alternative resources to treat various pathologies including type 2 diabetes, and several research works showed that it is significantly more accurate to use Oral Glucose Tolerance Test (OGTT) when diagnosing diabetes which prompted us to adopt this model to evaluate the possible anti-hyperglycemic effect of n-BuOH extract of Centaurea tougourensis. More than 500 Centaurea species are distributed in Mediterranean and West Asia zones. These species demonstrated over the years their pharmacological potential like antioxidant, anti-microbial, anti-diabetic, cytotoxic, activities due to their richness in secondary metabolites. A Preliminary phytoscreening was first done to identify the most important secondary metabolites in the plant and revealed the presence of key classes like; tannins, flavonoids, triterpenes… The pre-treatment of mice group by the dose of (400 ml/kg, p.o) of plant extract resulted in a significant (P<0.01) decrease of hyperglycemia (1.32 ± 0.06 g/l) 60 min after the induction of a temporary diabetes with a maximum percentage inhibition of (37%) while the reference group treated by Glibenclamide (10 mg/kg, i.p.) was only (31%) the same time. This concluded that C. tougourensis stabilized the blood glucose level and may have the potential to treat other pathologies.

%B International Journal of Human Settlements %V 5 %G eng %U https://www.researchgate.net/profile/Khemmoudj-Kaddour/publication/353587738_ijhs_v5_n2/links/61043db7169a1a0103ca66c9/ijhs-v5-n2.pdf#page=99 %N 2 %0 Journal Article %J Rev. Roum. Sci. Techn.– Électrotechn. et Énerg %D 2021 %T COMMANDE A FLUX VIRTUEL ORIENTE DE LA GENERATRICE ASYNCHRONE A CAGE DOUBLE ÉTOILE %A BENDJEDDOU, YACINE %A Abdessemed, Rachid %A MERABET, ELKHEIR %X Cet article est consacré à l’étude des performances de la génératrice asynchrone à cage double étoile (GASDE) en site isolé. Le système de commande est composé d’une GASDE raccordé à un bus continu et une charge en sortie de deux redresseurs à commande MLI. Une étude comparative entre la technique de commande conventionnelle et la commande adaptée basée sur l’introduction de la SVM-PI-flou et un nouvel estimateur de flux (flux virtuel statorique) afin d’améliorer la qualité d’énergie et d’atténuer les harmoniques du courant %B Rev. Roum. Sci. Techn.– Électrotechn. et Énerg %V 66 %P 71–76 %G eng %U https://www.researchgate.net/profile/Yacine-Bendjeddou-2/publication/353889771_Electrotechnique_et_electroenergetique_COMMANDE_A_FLUX_VIRTUEL_ORIENTE_DE_LA_GENERATRICE_ASYNCHRONE_A_CAGE_DOUBLE_ETOILE/links/6116c0a01ca20f6f861e5319/Electrotechnique-et-elec %N 2 %0 Conference Proceedings %B Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11, %D 2021 %T The contribution of maintenance to improve the operational performance of an industrial process %A El Houda, Khanfri Nor %A Hafed, Touahar %A Nouara, Ouazraoui %A Antarand, Simohammed %A Djamel, Bouabid %A Ilyas, Sellami %X

In the petroleum industry, equipments must be maintained properly to meet the adequate reliability standards in order to achieve the desired business goals in terms of productivity, safety and environmental protection. This article offers a new approach focused on risk analysis to select a better maintenance strategy. The proposed approach consists of three stages. In the first step, we identify the accident scenarios that could lead to the loss of production and damage to the environment. In the second step, we estimate the frequency of occurrence of these scenarios. In the third step, we calculate the economic losses and environmental taxes. Finally, an appropriate maintenance strategy is proposed, taking into account the evaluation results obtained by the previous steps. A case study illustrates the proposed approach and shows that the latter constitutes an important decision support tool to improve the existing maintenance strategy to comply with regulations and standards in term of productivity, reduction of costs and environmental protection

%B Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management , March 7-11, %C Singapore %G eng %U http://www.ieomsociety.org/singapore2021/papers/480.pdf %0 Journal Article %J Biodiversity Journal %D 2021 %T Diversity and distribution patterns of endophytic mycoflora of Atlas cedar, Cedrus atlantica (Endl) G. Manetti ex Carrière, needles in Belezma biosphere reserve (Batna, Algeria) %A Cherak, Imen %A Abdelkrim Si Bachir %A Cherak, Lakhdar %A Cherif Ghazi %A Lotfi Loucif %A Sellami, Mahdi %X

This study aims to assess the diversity and distribution of fungal mycoflora developing on Cedrus atlantica (Endl) G. Manetti ex Carrière needles in three sites in the Belezma National Park (Biosphere Reserve, Northeast - Algeria). Three sites were sampled according to a cedar decline gradient, these are the massifs of: Telmet (healthy site), Boumerzoug (moderately depressed) and Tougurt (decayed site). Polymerase chain reaction (PCR) molecular analysis, allows identifying 19 endophytic mycotaxa. All the identified species have a weak occurrence frequency (less than 25%). In terms of specific richness, the moderately depressed site (Boumerzoug) homes the largest number of taxa (S = 17), followed by healthy site of Telmet (12 taxa), while the depressed site of Tougurt was the least populated (8 taxa). The hierarchical classification analysis (HCA) showed that the taxonomic composition of endophyte associations differs clearly from one site to another according to the cedar decline. The clustering representing healthy massif brings 2 species which are demanding phytoparasitic endophytes (Fusarium sp. and Xylaria sp.). The group associated to moderately depressed site hosts 7 taxa with a wide ecological valence, such as: Canariomyces notabilis, Canariomyces vonarxii, Chaetomium aegilopis, Coniolariella hispanica and Penicillium kubanicum. Then, mycoflora group noted in the decayed cedar includes 10 taxa, in particular, saprophytic mycotaxa relatively less demanding with a high ecological valence like: Biscogniauxia mediterranea, Alternaria arborescens, A. tenuissima and three species of Chaetomium genus. The mycotaxa distribution is related to the specific conditions of colonized trees. Taxa specific to healthy and decayed massifs would represent bio indicators of the phytosanitary and ecological conditions of colonized cedars.

%B Biodiversity Journal %V 12 %P 573–583 %G eng %U https://doi.org/10.31396/Biodiv.Jour.2021.12.3.573.583 %N 3 %0 Journal Article %D 2021 %T FURTHER REAL DARK AND COMPLEX BRIGHT SOLITONS TO THE NEW COUPLED KONNO-OONO SYSTEM 2 %A BOUGOFFA, LAZHAR %A MENNOUNI, ABDELAZIZ %A WAZWAZ, ABDUL-MAJID %X

In this paper, first we show that the analytical solutions obtained in  the literature for the new coupled Konno-Oono system can be immediately presented  via the Weierstrass elliptic function or Jacobi elliptic functions. Next, we present a  new general real dark-type of soliton and a complex bright-type of envelope soliton  to this system in terms of the solutions of the sine-Gordon and sinh-Gordon equations  involving an arbitrary function via two new different transformations.

%G eng %U https://rjp.nipne.ro/accpaps/8E5AD295E48D8022F829961D8597BA5BBCFD1C0A.pdf %0 Journal Article %D 2021 %T Highly nonlinear systems estimation using extended and unscented kalman filters %A Laamari, Yahia %A Allaoui, Samia %A Chafaa, Kheireddine %A Bendaikha, Abdelmalik %X

The main idea of this study is to evaluate the estimation performance of extended and unscented Kalman filters (EKF and UKF). So, these latter are introduced to estimate the dynamic states of a similar model operating with identical covariance matrices in the same situation. The mean square error (MSE) criterion is used to quantify the estimation error between the actual and the estimated values. The simulation results obtained with Matlab/ Simulink software confirm the superiority and efficiency of UKF over EKF, especially when the system is highly non-linear under process and measurement noises, such is the case of the inverted double pendulum mounted on a cart (DIPC).

%8 1978 %G eng %U http://pe.org.pl/articles/2021/5/20.pdf %0 Conference Proceedings %B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI), September 21th, 22th %D 2021 %T Multispectral Images Compression using PSO‐based De‐correlation Matrix and DWT Transform %A Boucetta Aldjia %A Melkemi Kamal-Eddine %X

This paper proposes a new approach of multi-spectral image compression based on the combination of the particle swarm optimization (PSO) and the discrete wavelet transforms (DWT). In the first stage, the PSO is used to reduce the redundancies in the spectral domain. In fact, the PSO transforms a given multispectral image to optimize the energy in the first band. Despite to the complexity of this kind of approach, the transformed multispectral image is easily computed by multiplying a de-correlation matrix and the input multispectral image. The de-correlation matrix is estimated via a PSO evolution derived by a defined fitness function. In the second stage, the compressed data, related to the input multispectral image, is computed from the transformed multispectral image using an efficient 2D-DWT based algorithm. In addition to this compression approach, the original multispectral image can be recovered using a decompression algorithm. Experimental results show the validity of our proposed approach. These significant results are evaluated according to Peak signal-to-noise ratio (PSNR), compression ratio (CR) and bits per pixel (bpp) metrics.

%B International Conference on Recent Advances in Mathematics and Informatics (ICRAMI), September 21th, 22th %C Tebessa, Algeria %G eng %U 10.1109/ICRAMI52622.2021.9585932 %0 Journal Article %J UPB Scientific Bulletin, Series D: Mechanical Engineering %D 2021 %T NUMERICAL INVESTIGATION ON STATIC AND BUCKLING BEHAVIOURS OF A MAST SUPPORT FOR H-ROTOR DARRIEUS TURBINE UNDER EXTERNAL LOADING %A FERROUDJI, Fateh %A BENBOUTA, Soumia %A OUTTAS, Toufik %X

The mast support for small vertical axis wind turbine is considered an important parameter during the design process of wind turbine structure. It has been receiving a great attention by researchers and academics. This study presents a numerical investigation on the static and buckling strength behaviors of whole wind turbine mast structure by means Finite Element Analysis (FEA) technique. The FEA simulations are performed in order to evaluate the reliability and the strength of the mast structure under the extreme wind conditions (IEC 61400-2 and Eurocode 1991-1-4 standards) and gravity loads. The simulation results show that the mast structure will not undergo structural failure because the maximum stress induced is less than the yield strength of the material and the maximum displacement is within material allowable deformation limit. In addition, the buckling strength of the structure meets requirement of design.

%B UPB Scientific Bulletin, Series D: Mechanical Engineering %V 83 %P 273–284 %G eng %U https://www.researchgate.net/publication/354462496_Numerical_Investigation_on_Static_and_Buckling_behaviours_of_a_Mast_Support_for_H-rotor_Darrieus_Turbine_under_External_Loading %N 2 %0 Conference Proceedings %B The First International Conference on Renewable energy Advanced Technologies and Applications 28-30 June, 2021At: Research Unit for Renewable Energies in Saharan Region, %D 2021 %T Simulation Analysis on The Strength Of Composite VAWT Blade %A Nezzar, Hamza %A FERROUDJI, Fateh %A OUTTAS, Toufik %A Saihi, Lakhdar %A Roummani, Khayra %X

As a key wind turbine element, the blade is a determining factor for reliability and efficiency of the turbine system and a main source of complicated and critical loads. In this present investigation, the strength behavior of a small composite blade for H-type Darrieus wind turbine was studied. Firstly, three-dimensional (3D) modelling of the blade structure with NACA 0018 airfoil profile was established. Secondly, the Finite element analysis (FEA) technique was conducted to perform the strength analysis of the blade structure subjected to extreme climatic conditions by means SOLIDWORKS SIMULATION software. This analysis was performed to identify the resistance, stiffness and reliability of the composite blade structure. The results from FEA identify that the structure of the blade will not be subjected to structural failure during WT operation (0 ~ 19 m/s) according to maximum principal stress equivalent (von Mises) and maximum displacements.

%B The First International Conference on Renewable energy Advanced Technologies and Applications 28-30 June, 2021At: Research Unit for Renewable Energies in Saharan Region, %C Adrar, Algeria %P 303 %G eng %U https://www.researchgate.net/publication/355983638_Simulation_Analysis_on_the_Strength_of_Composite_VAWT_Blade %0 Journal Article %J U.P.B. Sci. Bull., Series C %D 2021 %T STRATÉGIE DE CONTRÔLE NON LINÉAIRE OPTIMISÉE POUR LE GÉNÉRATEUR SYNCHRONE À AIMANT PERMANENT (GSAP) DANS LE SYSTÈME DE CONVERSION DE L'ÉNERGIE ÉOLIENNE (SCEE) %A Mohamed Baha Eddine ZARROUKI %A Said Benaggoune %A Abdessemed, Rachid %X

L'article décrit la conception et la mise en œuvre en temps réel d'une commande non linéaire appliquée à un système de conversion de l'énergie éolienne (SCEE). La commande backstepping a été mise en œuvre pour améliorer les performances du système de conversion éolienne basé sur un générateur synchrone à aimants permanents (PMSG) connecté au réseau. Deux convertisseurs statiques assurent la connexion au réseau et sont contrôlés par la modulation de largeur d'impulsion (MLI). L'algorithme de contrôle proposé assure un contrôle de vitesse adéquat pour extraire la puissance maximale. Une description détaillée des lois de contrôle du backstepping basées sur la technique de stabilité de Lyapunov a été exposée. Les résultats obtenus par l'application de cette approche ont clairement répondu aux exigences de robustesse et de suivi des références même dans des conditions de vent fluctuants, et ont confirmé l'efficacité d'un tel contrôle dans les modes de fonctionnement statique et dynamique.

%B U.P.B. Sci. Bull., Series C %V 83 %G eng %U https://www.scientificbulletin.upb.ro/rev_docs_arhiva/rez246_250633.pdf %N 1 %0 Journal Article %J Revue des Composites et des Matériaux Avancés %D 2021 %T A Study of the Thermo-Mechanical Behavior of a Gas Turbine Blade in Composite Materials Reinforced with Mast A Study of the Thermo-Mechanical Behavior of a Gas Turbine Blade in Composite Materials Reinforced with Mast %A Khalid, Faiza %A Rabah, Manaa %A Salah, Saad %A Hacene, Ameddah %X

The turbine blades are subjected to high operating temperatures and high centrifugal tensile stress due to rotational speeds. The maximum temperature at the inlet of the turbine is currently limited by the resistance of the materials used for the blades. The present paper is focused on the thermo-mechanical behavior of the blade in composite materials with reinforced mast under two different types of loading. The material studied in this work is a composite material, the selected matrix is a technical ceramic which is alumina (aluminum oxide Al2O3) and the reinforcement is carried out by short fibers of high modulus carbon to optimize a percentage of 40% carbon and 60% of ceramics. The simulation was performed numerically by Ansys (Workbench 16.0) software. The comparative analysis was conducted to determine displacements, strains and Von Mises stress of composite material and then compared to other materials such as Titanium Alloy, Stainless Steel Alloy, and Aluminum 2024 Alloy. The results were compared in order to select the material with the best performance in terms of rigidity under thermo-mechanical stresses. While comparing these materials, it is found that composite material is better suited for high temperature applications. On evaluating the graphs drawn for, strains and displacements, the blade in composite materials reinforced with mast is considered as optimum.

%B Revue des Composites et des Matériaux Avancés %P 101-108 %8 1800 %G eng %U https://www.iieta.org/journals/rcma/paper/10.18280/rcma.310205 %0 Journal Article %J International Journal of Grid and High Performance Computing (IJGHPC) %D 2021 %T A New Social Volunteer Computing Environment With Task-Adapted Scheduling Policy (TASP) %A Kadache, Nabil %A Seghir, Rachid %X

Volunteer computing (VC) has become a relatively mature technique of distributed computing. It is based on exploiting the idle time of ordinary online machines with the consent of their owners. Target applications are generally scientific projects requiring a huge amount of computational resources. Existing VC platforms raise several challenges. This work attempts to bring solutions for two defeats. The first one is the involvement of volunteers; the decreasing of participants affects the global performances. To cope with this, a new social volunteer computing environment is proposed in order to involve more volunteers. The second addressed problem is the task scheduling, which aims to optimize the use of resources. The proposed algorithm generates for each resource's class, a number of tasks whose cost of execution reflects the momentary capacity of the resources. The new solutions are validated through a theory of number's project, called “Collatz Conjecture.”

%B International Journal of Grid and High Performance Computing (IJGHPC) %I IGI Global %V 13 %P 39-55 %G eng %U https://www.igi-global.com/article/a-new-social-volunteer-computing-environment-with-task-adapted-scheduling-policy-tasp/273653 %N 2