In Algeria, Opuntia ficus-indica production is important. This seasonal fruit is a characteristic of arid and semiarid regions. Taking into account its high content in antioxidants, it has an excellent nutritional value. The aim of this research is the prickly pear morphological and physicochemical characterization study, which is widely present in the Arris (Batna, Algeria) area. The results of this experimental study are comparative to those of the same species from other world regions. The whole fruit weight is estimated to reach 63.38 g with a juice ratio of 71.42 %, a pH of 5.54, moisture of 89.3 % and a brix of 10.4 %. The quantitative amount of the phenolic compounds of the fruit revealed contents of 45.70 mg GAE / 100 g of MF for total polyphenols.

In Algeria, Opuntia ficus-indica production is important. This seasonal fruit is a characteristic of arid and semiarid regions. Taking into account its high content in antioxidants, it has an excellent nutritional value. The aim of this research is the prickly pear morphological and physicochemical characterization study, which is widely present in the Arris (Batna, Algeria) area. The results of this experimental study are comparative to those of the same species from other world regions. The whole fruit weight is estimated to reach 63.38 g with a juice ratio of 71.42 %, a pH of 5.54, moisture of 89.3 % and a brix of 10.4 %. The quantitative amount of the phenolic compounds of the fruit revealed contents of 45.70 mg GAE / 100 g of MF for total polyphenols.

In Algeria, Opuntia ficus-indica production is important. This seasonal fruit is a characteristic of arid and semiarid regions. Taking into account its high content in antioxidants, it has an excellent nutritional value. The aim of this research is the prickly pear morphological and physicochemical characterization study, which is widely present in the Arris (Batna, Algeria) area. The results of this experimental study are comparative to those of the same species from other world regions. The whole fruit weight is estimated to reach 63.38 g with a juice ratio of 71.42 %, a pH of 5.54, moisture of 89.3 % and a brix of 10.4 %. The quantitative amount of the phenolic compounds of the fruit revealed contents of 45.70 mg GAE / 100 g of MF for total polyphenols.

The complexity of systems in the current process industry is conducive to the concerns of industrialists about the risks that may be inherent in these systems. Risk reduction measures should be considered and implemented to reduce the initial risk to an acceptable level. This is usually achieved by using a combination of systems that provide security, inter alia, Safety Instrumented Systems (SIS). The implementation of a SIS requires the determination of its Safety Integrity Level (SIL) which it must have in order to attain the tolerable risk. The standards IEC 61508 and 61511 provide a framework for the determination of SIL and propose different methods. The objective of this work consists in proposing an approach of allocation and optimization of the security barriers, using the methods of risk graph and LOPA (Layer Of Protection Analysis) In order to evaluate the performance of the safety measures put in place for the control of risks in a hydrocarbon storage station. A cost benefit analysis (CBA), as a decision support tool, is carried out to improve the safety level of the process studied.

The complexity of systems in the current process industry is conducive to the concerns of industrialists about the risks that may be inherent in these systems. Risk reduction measures should be considered and implemented to reduce the initial risk to an acceptable level. This is usually achieved by using a combination of systems that provide security, inter alia, Safety Instrumented Systems (SIS). The implementation of a SIS requires the determination of its Safety Integrity Level (SIL) which it must have in order to attain the tolerable risk. The standards IEC 61508 and 61511 provide a framework for the determination of SIL and propose different methods. The objective of this work consists in proposing an approach of allocation and optimization of the security barriers, using the methods of risk graph and LOPA (Layer Of Protection Analysis) In order to evaluate the performance of the safety measures put in place for the control of risks in a hydrocarbon storage station. A cost benefit analysis (CBA), as a decision support tool, is carried out to improve the safety level of the process studied.

The complexity of systems in the current process industry is conducive to the concerns of industrialists about the risks that may be inherent in these systems. Risk reduction measures should be considered and implemented to reduce the initial risk to an acceptable level. This is usually achieved by using a combination of systems that provide security, inter alia, Safety Instrumented Systems (SIS). The implementation of a SIS requires the determination of its Safety Integrity Level (SIL) which it must have in order to attain the tolerable risk. The standards IEC 61508 and 61511 provide a framework for the determination of SIL and propose different methods. The objective of this work consists in proposing an approach of allocation and optimization of the security barriers, using the methods of risk graph and LOPA (Layer Of Protection Analysis) In order to evaluate the performance of the safety measures put in place for the control of risks in a hydrocarbon storage station. A cost benefit analysis (CBA), as a decision support tool, is carried out to improve the safety level of the process studied.

The complexity of systems in the current process industry is conducive to the concerns of industrialists about the risks that may be inherent in these systems. Risk reduction measures should be considered and implemented to reduce the initial risk to an acceptable level. This is usually achieved by using a combination of systems that provide security, inter alia, Safety Instrumented Systems (SIS). The implementation of a SIS requires the determination of its Safety Integrity Level (SIL) which it must have in order to attain the tolerable risk. The standards IEC 61508 and 61511 provide a framework for the determination of SIL and propose different methods. The objective of this work consists in proposing an approach of allocation and optimization of the security barriers, using the methods of risk graph and LOPA (Layer Of Protection Analysis) In order to evaluate the performance of the safety measures put in place for the control of risks in a hydrocarbon storage station. A cost benefit analysis (CBA), as a decision support tool, is carried out to improve the safety level of the process studied.

A three-dimensional finite element method (FEM) simulation was carried out in order to

exploit a new resurfacing prothesis design named MARMEL, proposed by a recent study with Co–Cr–

Mo material [1], for comparing a hip uncemented resurfacing with a novel carbon fiber/polyamide 12

(CF/PA12) composite to Co–Cr–Mo hip resurfacing implant.

From FE analysis, the von Mises stress range for the Composite hip resurfacing was much lower than

that in the Co–Cr–Mo hip resurfacing implant used in this comparison.

These outcomes showed that the biomimetic MARMEL hip resurfacing had the potential to reduce stress

shielding and prevent from bone fracture compared to conventional hip resurfacing implants.

A three-dimensional finite element method (FEM) simulation was carried out in order to

exploit a new resurfacing prothesis design named MARMEL, proposed by a recent study with Co–Cr–

Mo material [1], for comparing a hip uncemented resurfacing with a novel carbon fiber/polyamide 12

(CF/PA12) composite to Co–Cr–Mo hip resurfacing implant.

From FE analysis, the von Mises stress range for the Composite hip resurfacing was much lower than

that in the Co–Cr–Mo hip resurfacing implant used in this comparison.

These outcomes showed that the biomimetic MARMEL hip resurfacing had the potential to reduce stress

shielding and prevent from bone fracture compared to conventional hip resurfacing implants.

Un cuiseur solaire boîte à surface réceptrice inclinée (CSBSRI) a été développé et testé à l’Unité de Recherche Appliquée en Énergies Renouvelables, sous les conditions climatiques de Ghardaïa, Algérie. Les performances thermiques du cuiseur sont analysées selon la procédure internationale de Mullick en termes de deux paramètres (F1, F2), le temps d’ébullition est calculé et la courbe caractéristique de notre cuiseur est également déterminée. En outre, les valeurs de puissance de cuisson sont calculées à partir des tests expérimentaux réalisés suivant le standard international de Funk et représentées en fonction de la différence de température entre l’eau et l’ambiance. Le cuiseur solaire réalisé, permettant une bonne interception des rayons solaires démontre de meilleures performances thermiques comparées à d'autres cuiseurs boîtes existants.

Un cuiseur solaire boîte à surface réceptrice inclinée (CSBSRI) a été développé et testé à l’Unité de Recherche Appliquée en Énergies Renouvelables, sous les conditions climatiques de Ghardaïa, Algérie. Les performances thermiques du cuiseur sont analysées selon la procédure internationale de Mullick en termes de deux paramètres (F1, F2), le temps d’ébullition est calculé et la courbe caractéristique de notre cuiseur est également déterminée. En outre, les valeurs de puissance de cuisson sont calculées à partir des tests expérimentaux réalisés suivant le standard international de Funk et représentées en fonction de la différence de température entre l’eau et l’ambiance. Le cuiseur solaire réalisé, permettant une bonne interception des rayons solaires démontre de meilleures performances thermiques comparées à d'autres cuiseurs boîtes existants.

Un cuiseur solaire boîte à surface réceptrice inclinée (CSBSRI) a été développé et testé à l’Unité de Recherche Appliquée en Énergies Renouvelables, sous les conditions climatiques de Ghardaïa, Algérie. Les performances thermiques du cuiseur sont analysées selon la procédure internationale de Mullick en termes de deux paramètres (F1, F2), le temps d’ébullition est calculé et la courbe caractéristique de notre cuiseur est également déterminée. En outre, les valeurs de puissance de cuisson sont calculées à partir des tests expérimentaux réalisés suivant le standard international de Funk et représentées en fonction de la différence de température entre l’eau et l’ambiance. Le cuiseur solaire réalisé, permettant une bonne interception des rayons solaires démontre de meilleures performances thermiques comparées à d'autres cuiseurs boîtes existants.

Un cuiseur solaire boîte à surface réceptrice inclinée (CSBSRI) a été développé et testé à l’Unité de Recherche Appliquée en Énergies Renouvelables, sous les conditions climatiques de Ghardaïa, Algérie. Les performances thermiques du cuiseur sont analysées selon la procédure internationale de Mullick en termes de deux paramètres (F1, F2), le temps d’ébullition est calculé et la courbe caractéristique de notre cuiseur est également déterminée. En outre, les valeurs de puissance de cuisson sont calculées à partir des tests expérimentaux réalisés suivant le standard international de Funk et représentées en fonction de la différence de température entre l’eau et l’ambiance. Le cuiseur solaire réalisé, permettant une bonne interception des rayons solaires démontre de meilleures performances thermiques comparées à d'autres cuiseurs boîtes existants.

Un cuiseur solaire boîte à surface réceptrice inclinée (CSBSRI) a été développé et testé à l’Unité de Recherche Appliquée en Énergies Renouvelables, sous les conditions climatiques de Ghardaïa, Algérie. Les performances thermiques du cuiseur sont analysées selon la procédure internationale de Mullick en termes de deux paramètres (F1, F2), le temps d’ébullition est calculé et la courbe caractéristique de notre cuiseur est également déterminée. En outre, les valeurs de puissance de cuisson sont calculées à partir des tests expérimentaux réalisés suivant le standard international de Funk et représentées en fonction de la différence de température entre l’eau et l’ambiance. Le cuiseur solaire réalisé, permettant une bonne interception des rayons solaires démontre de meilleures performances thermiques comparées à d'autres cuiseurs boîtes existants.

Prediction of effective properties for multiphase composite is very important not only to analysis and optimization of material performance, but also to new material designs. In this paper, the effective elastic property of some complex particulate composites is analyzed and compared with numerical results, demonstrating the validity of the proposed approach. We propose the equivalent morphology concept for the numerical homogenization of random composites. In this study, this concept is extended for complex material. A home script based on Python codes is made to automate the generating of Representative volume element with various volume fraction.

Prediction of effective properties for multiphase composite is very important not only to analysis and optimization of material performance, but also to new material designs. In this paper, the effective elastic property of some complex particulate composites is analyzed and compared with numerical results, demonstrating the validity of the proposed approach. We propose the equivalent morphology concept for the numerical homogenization of random composites. In this study, this concept is extended for complex material. A home script based on Python codes is made to automate the generating of Representative volume element with various volume fraction.