Parcourir les contenus (944 total)

  • Collection: Review Articles

Currently, variable speed wind systems based on the Brushless Doubly-Fed Induction Machine (BDFIM) are the most used in Wind Energy Conversion System (WECS). The main features of BDFIM are high reliability due to its brushless operating, lower…

Compte tenu de l’épuisement des énergies utilisées actuellement, telles que les énergies fossiles, et du constat établi par les experts concernant les exigences écologiques, il est nécessaire de trouver des nouvelles sources d’énergies afin de…

In this paper, we will study the maximum number of limit cycles of a perturbed differential system with respect to its parameters which appear in the system specially on the degree of the polynomials. For this we will use two methods namely the…

The Doped Oxide Solid Source (DOSS) diffusion technique is well suited for fine-tuning of the surface concentration. The dopant surface concentration is important during phosphorus emitter diffusion due to the opposite requirements of a lowly doped…

In this paper, the results of investigation of the spectral characteristics of the injectional photodiodes with a varied base are presented under the condition of the existence of Galvanomagnetorecombination (GMR) effect. This is the redistribution…

With the decline in price of the photovoltaic’s (PVs) and the increase in greenhouse gases due to the use of fossil fuels the use of photovoltaic as a power source for water pumping is becoming the more attractive solution instead of using…

In order to widen the industrial uses of Taghit sand (Bechar) different investigations have been performed to characterize the natural raw material using several techniques. Mineralogical and physic chemical characterizations of the natural raw…

The objective of the developed system is to encourage efficient water management practices that optimize the usage of water by keeping crop health and yield intact through the implementation of an automated irrigation system. The study aimed to…

The objective of this study was to evaluate in vitro the antioxidant activity of polyphenols from olive oil mill wastewater in Khenchela region eastern of Algeria after conducting a phytochemical screening. The extraction of polyphenols was done by…

This work aims to accurately predict the velocity distribution along a flat-plate surface facing a uniform flow with arbitrary inclination. The Laplace equation governing the problem was solved with the finite difference method, and the results were…
Formats de sortie

atom, dc-rdf, dcmes-xml, json, omeka-xml, rss2