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  • Collection: Short Communication

In this paper, the thermal performances of a box solar cooker were rated with F1 and F2 parameters as per Mullick’s procedure [1], the efficiency of the cooker was evaluated using energy and exergy analysis. The solar cooker was designed with an…

The present work, on an experimental basis, consists of an analysis and treatment of used motor oil (used oil collected by NAFTAL stored at the port of Algiers). For this, we carried out tests in the laboratory in order to develop an adequate…

Sage (salvia officinalis) is among the most consumed aromatic herbs in Morocco. The present work examines the effect of drying conditions (drying air velocity, drying air temperature and air moisture content) on drying kinetics of sage in a…

Since thermal energy is stored during decomposition (charge) and released during hydration reaction (discharge), the decomposition of calcium hydroxide is considered as a thermochemical reaction acceptable for use in thermal storage. The present…

Les pompes centrifuges sont les plus utilisées dans le monde et les résultats obtenus ont démontré que ces pompes présentent, pour des grandes profondeurs, deux inconvénients majeurs: un faible rendement de pompage, inférieur à 10% à 20 m, et un…

Cette étude est consacrée à l’évaluation du comportement végétatif des plants maraîchers vis-à-vis des jus de process obtenus après dilution respectivement, du digestat liquide issu d’une installation de biométhanisation rurale bovine, dénommé Jus de…

Dans cet article, nous nous intéressons à l’élaboration d’une loi de commande robuste par les modes glissants de la puissance active et de la puissance réactive statorique d’une machine asynchrone à double alimentation ‘MADA’, qui constitue la partie…

We study the free vibration of an Euler-Bernoulli beam without internal damping. By applying suitable control at the free boundary, we can exponentially dampen these vibrations. The exponential stability was proven using the Lyapunov method, and the…

The fatigue estimation of a rotating blade can be useful for preventing blade breakage, which is a very frequent problem in the use of wind turbine. The estimation of fatigue for a rotating blade must go through several steps of calculation: among…

First-principles calculation has been performed on the simple hydrides LiH and MgH2 using the full-potential linearized augmented waves (FP-LAPW). The electronic structure and structural stability are studied. The formation energy has been…
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