Various facilities are used in mineral processing to prepare raw material. Practically, two types of balls are used, cast balls and forged balls. They are respectively made from high chromium cast iron and forged steel and are supplied in different sizes and chemical compositions. The cast and forged balls have different microstructures and consequently display dissimilar wear behavior. The target aimed in this work is to achieve a comparative study taking into account the type of microstructure, mechanical properties, and wear behavior of these two kinds of materials. Specimens have undergone chemical, metallographic and XRD characterizations. Subsequently, these samples were subjected to hardness measurements, abrasion and friction tests in order to evaluate their wear behaviour. Tribological tests, under unlubricated environment, are carried out on both types of grinding balls in order to study the wear system. Corrosion tests are also performed on forged steel and high chromium cast iron ball samples. The obtained results reveal a large difference in terms of chemical composition and microstructural components. Chromium cast iron balls are more resistant to friction, whereas forged balls are more resistant to abrasion. Additionally, the corrosion tests reveal a narrow discrepancy in corrosion behaviour between the studied materials.

The exploitation of fossil fuels is causing global warming whose negative effects have recently been felt all over the world. Therefore, the search for new sources of energy, renewable and respectful of the environment is crucial for manufacturers. The concept of Best Available Techniques (BAT) presents an adequate solution for manufacturers, for the control, elimination or reduction of the harmful impacts of their activities on the environment. This concept, known as Integrated Pollution Prevention and Control (IPPC), was introduced and imposed from 1996 in Europe. This paper aims to introduce the possibility of transferring the IPPC approach and BAT concepts to Algeria. Therefore, the main objective is to propose some recommendations to optimize the technical and environmental performance of hybrid solar-gas systems, by treating as a case study the first hybrid solar-gas power plant SPPI (Solar Power Plant One) near Hassi R’mel in the south of Algeria. A gap analysis of the Algerian environmental policy compared to the IPPC system, and an assessment of technical and environmental performance of the “SPPI” plant in terms of regulation and BAT are developed in our study.

The exploitation of fossil fuels is causing global warming whose negative effects have recently been felt all over the world. Therefore, the search for new sources of energy, renewable and respectful of the environment is crucial for manufacturers. The concept of Best Available Techniques (BAT) presents an adequate solution for manufacturers, for the control, elimination or reduction of the harmful impacts of their activities on the environment. This concept, known as Integrated Pollution Prevention and Control (IPPC), was introduced and imposed from 1996 in Europe. This paper aims to introduce the possibility of transferring the IPPC approach and BAT concepts to Algeria. Therefore, the main objective is to propose some recommendations to optimize the technical and environmental performance of hybrid solar-gas systems, by treating as a case study the first hybrid solar-gas power plant SPPI (Solar Power Plant One) near Hassi R’mel in the south of Algeria. A gap analysis of the Algerian environmental policy compared to the IPPC system, and an assessment of technical and environmental performance of the “SPPI” plant in terms of regulation and BAT are developed in our study.

The exploitation of fossil fuels is causing global warming whose negative effects have recently been felt all over the world. Therefore, the search for new sources of energy, renewable and respectful of the environment is crucial for manufacturers. The concept of Best Available Techniques (BAT) presents an adequate solution for manufacturers, for the control, elimination or reduction of the harmful impacts of their activities on the environment. This concept, known as Integrated Pollution Prevention and Control (IPPC), was introduced and imposed from 1996 in Europe. This paper aims to introduce the possibility of transferring the IPPC approach and BAT concepts to Algeria. Therefore, the main objective is to propose some recommendations to optimize the technical and environmental performance of hybrid solar-gas systems, by treating as a case study the first hybrid solar-gas power plant SPPI (Solar Power Plant One) near Hassi R’mel in the south of Algeria. A gap analysis of the Algerian environmental policy compared to the IPPC system, and an assessment of technical and environmental performance of the “SPPI” plant in terms of regulation and BAT are developed in our study.

The exploitation of fossil fuels is causing global warming whose negative effects have recently been felt all over the world. Therefore, the search for new sources of energy, renewable and respectful of the environment is crucial for manufacturers. The concept of Best Available Techniques (BAT) presents an adequate solution for manufacturers, for the control, elimination or reduction of the harmful impacts of their activities on the environment. This concept, known as Integrated Pollution Prevention and Control (IPPC), was introduced and imposed from 1996 in Europe. This paper aims to introduce the possibility of transferring the IPPC approach and BAT concepts to Algeria. Therefore, the main objective is to propose some recommendations to optimize the technical and environmental performance of hybrid solar-gas systems, by treating as a case study the first hybrid solar-gas power plant SPPI (Solar Power Plant One) near Hassi R’mel in the south of Algeria. A gap analysis of the Algerian environmental policy compared to the IPPC system, and an assessment of technical and environmental performance of the “SPPI” plant in terms of regulation and BAT are developed in our study.

The assessment of Patient Safety Culture (PSC) is often conducted using a quantitative approach based on questionnaires or a qualitative one focused on the deployment of Patient Safety Culture Maturity Models (PSCMM). These two approaches suffer from a number of limitations and their resolution is only possible by exploiting the possible complementarity that exists between them. Indeed, to overcome their inherent limits, it is imperative to merge the two PSC approaches in a single approach called quali-quantitative evaluation of PSC. This article fits into this context and aims to materialise the merger of PSC approaches through their co-deployment. This will make it possible to capitalise the scores of the HSOPSC dimensions in terms of PSC maturity levels.

The assessment of Patient Safety Culture (PSC) is often conducted using a quantitative approach based on questionnaires or a qualitative one focused on the deployment of Patient Safety Culture Maturity Models (PSCMM). These two approaches suffer from a number of limitations and their resolution is only possible by exploiting the possible complementarity that exists between them. Indeed, to overcome their inherent limits, it is imperative to merge the two PSC approaches in a single approach called quali-quantitative evaluation of PSC. This article fits into this context and aims to materialise the merger of PSC approaches through their co-deployment. This will make it possible to capitalise the scores of the HSOPSC dimensions in terms of PSC maturity levels.

The assessment of Patient Safety Culture (PSC) is often conducted using a quantitative approach based on questionnaires or a qualitative one focused on the deployment of Patient Safety Culture Maturity Models (PSCMM). These two approaches suffer from a number of limitations and their resolution is only possible by exploiting the possible complementarity that exists between them. Indeed, to overcome their inherent limits, it is imperative to merge the two PSC approaches in a single approach called quali-quantitative evaluation of PSC. This article fits into this context and aims to materialise the merger of PSC approaches through their co-deployment. This will make it possible to capitalise the scores of the HSOPSC dimensions in terms of PSC maturity levels.

Improvements to health and safety at work constantly involve organizational changes (OCs). However, the OC initiatives often fail at achieving their intended goals despite efforts to draw knowledge from various disciplines, such as sociology, psychology and information sciences, to guide the change implementation. This paper proposes a temporality approach to manage the resistance during an OC project based on the capitalization of the actors’ behaviors (i.e. alignment/resistance) for successful OC implementation.Employees in an industrial company (N = 186) undergoing an OC answered a questionnaire survey. The statistical analysis approach was used to measure the influence of the constructs of the proposed temporality capitalization approach on the OC conduct.Results indicate that the considered constructs have positive and significant correlations with OC development. It has also been found that the employees’ alignment is highly correlated with the opportunities they might gain from the OC.The proposed temporality capitalization approach shows that providing the employees with clear objectives is not sufficient to support the change, and it is suggested that the change management has to move a step further and seek to target the perspectives of the employees to energize them around the OC and maximize their alignment.In this paper, change management is approached through the temporality capitalization that confirms the importance of monitoring the change development through the alignment. In other terms, the curve of the adaptation of the change receivers matters and should attract more attention rather than the change implementation speed.

Improvements to health and safety at work constantly involve organizational changes (OCs). However, the OC initiatives often fail at achieving their intended goals despite efforts to draw knowledge from various disciplines, such as sociology, psychology and information sciences, to guide the change implementation. This paper proposes a temporality approach to manage the resistance during an OC project based on the capitalization of the actors’ behaviors (i.e. alignment/resistance) for successful OC implementation.Employees in an industrial company (N = 186) undergoing an OC answered a questionnaire survey. The statistical analysis approach was used to measure the influence of the constructs of the proposed temporality capitalization approach on the OC conduct.Results indicate that the considered constructs have positive and significant correlations with OC development. It has also been found that the employees’ alignment is highly correlated with the opportunities they might gain from the OC.The proposed temporality capitalization approach shows that providing the employees with clear objectives is not sufficient to support the change, and it is suggested that the change management has to move a step further and seek to target the perspectives of the employees to energize them around the OC and maximize their alignment.In this paper, change management is approached through the temporality capitalization that confirms the importance of monitoring the change development through the alignment. In other terms, the curve of the adaptation of the change receivers matters and should attract more attention rather than the change implementation speed.

Improvements to health and safety at work constantly involve organizational changes (OCs). However, the OC initiatives often fail at achieving their intended goals despite efforts to draw knowledge from various disciplines, such as sociology, psychology and information sciences, to guide the change implementation. This paper proposes a temporality approach to manage the resistance during an OC project based on the capitalization of the actors’ behaviors (i.e. alignment/resistance) for successful OC implementation.Employees in an industrial company (N = 186) undergoing an OC answered a questionnaire survey. The statistical analysis approach was used to measure the influence of the constructs of the proposed temporality capitalization approach on the OC conduct.Results indicate that the considered constructs have positive and significant correlations with OC development. It has also been found that the employees’ alignment is highly correlated with the opportunities they might gain from the OC.The proposed temporality capitalization approach shows that providing the employees with clear objectives is not sufficient to support the change, and it is suggested that the change management has to move a step further and seek to target the perspectives of the employees to energize them around the OC and maximize their alignment.In this paper, change management is approached through the temporality capitalization that confirms the importance of monitoring the change development through the alignment. In other terms, the curve of the adaptation of the change receivers matters and should attract more attention rather than the change implementation speed.

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.

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.

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.

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. 

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.

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.

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.