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الملخص بالعربي: هدفت الدراسة إلى تشخيص واقع الأعمال الإلكترونية في الجزائر ومدى استعدادها لضمان التحوّل السلس نحو هذا النمط الجديد من الأعمال في ظل الثورة الصناعية الرابعة، وهذا من خلال التعرف على مدى جاهزية بنيتها التحتية ودرجة تبنيها للتكنولوجيا…

Actuellement, le générateur diesel est la solution technique la plus utilisée pour l’électrification des sites isolés. Néanmoins, l’accès à ces sites étant généralement long et difficile, les coûts de maintenance et d’approvisionnement en carburant…

The stability of infrastructure is a major concern for various economic, ecological or, more importantly, the security of buildings.This can be done by different techniques, mechanical, chemical or both, to improve the geotechnical properties of…

Several degradations have been observed on the sanitation networks (pipes and manholes) in Ouargla region, because of the qualityof the concrete produced, the type of pipes used, and also the aggressiveness of the external environment. These problems…

The stability of infrastructure is a major concern for various economic, ecological or, more importantly, the security of buildings.This can be done by different techniques, mechanical, chemical or both, to improve the geotechnical properties of…

Several degradations have been observed on the sanitation networks (pipes and manholes) in Ouargla region, because of the qualityof the concrete produced, the type of pipes used, and also the aggressiveness of the external environment. These problems…

Biodiesel from renewable resources generally produced with the transesterification of vegetal oils or animal fats. In this study, we have improved the reaction conditions of the transesterification of the sunflower oil outcome in from frying. Fatty…

Ce travail présente une modeste contribution sur le domaine des éléments finis. On a essayé de résoudre l’équation de Poisson avec les conditions aux limites de type Dirichlet dans un domaine quelconque bidimensionnel simplement connexe. Après une…

The fractional-order derivative of a non-constant periodic function is not periodic with the same period. Consequently, any time-invariant fractional-order systems do not have a non-constant periodic solution. This property limits the applicability…

The fractional-order derivative of a non-constant periodic function is not periodic with the same period. Consequently, any time-invariant fractional-order systems do not have a non-constant periodic solution. This property limits the applicability…
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