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Mostaganem, Algeria

The University of Mostaganem is a university, located in Mostaganem, Algeria.Founded in 1978, it now has some 28,000 students and 830 teaching staff. The institution was formerly an institute of agricultural technology, set up in 1969.It comprises eight faculties and one institute, as follows:- Faculty of science and computing- Faculty of natural science- Faculty of science and technology- Faculty of arts and literature- Faculty of law and politics- Faculty of economics, commerce and management- Faculty of social science- Faculty of medicine- Institute of sport and physical education Wikipedia.

He X.,Zhejiang Normal University | Gala S.,University of Mostaganem
Nonlinear Analysis: Real World Applications | Year: 2011

The goal of this paper is to establish a Serrin-type regularity criterion in terms of pressure for Leray weak solutions to the NavierStokes equations in R3. It is proved that if the pressure belongs to L2(0,T;B. ∞,∞-1(R3)), then the weak solution is actually regular. This improves a result established in a recent work by the second author Gala (2011) [19]. © 2011 Elsevier Ltd. All rights reserved.

Zhou Y.,Zhejiang Normal University | Gala S.,University of Mostaganem
Zeitschrift fur Angewandte Mathematik und Physik | Year: 2010

In this paper, some improved regularity criteria for the 3D viscous MHD equations are established in multiplier spaces. It is proved that if the velocity field satisfies, or the gradient field of velocity satisfies, then the solution remains smooth on [0, T]. © 2009 Birkháuser Verlag Basel/Switzerland.

Ouinas D.,University of Mostaganem
Journal of Reinforced Plastics and Composites | Year: 2010

Bonded composite patch repairs to metallic structures is receiving increased attention in the recent years. It offers various advantages over rivetted doubler, particularly for airframe repairs. This article presents the crack growth behavior of an edge cracked aluminum plate repaired using boron/epoxy composite patch. The effect of the size and location of this disbond on the tensile behavior of the repaired plate is investigated. An analysis procedure, involving finite element modeling of the cracked plate, adhesive, and composite patch, is conducted to compute the stress intensity factor. The results indicate that the crack growth rate is dominated by the stress intensity factor and the size of the pre-existing disbonds. Cracking of the plate and propagation of the disbond results in an increase in the patch deformation. © The Author(s), 2010.

Due to constant decrease in farmlands, it is important to identify the best lands useful for sustainable agriculture (productive and profitable agriculture that protects the environment and that is socially equitable). This requirement has resulted in the development of land suitability maps for agriculture by combining several factors of various natures and of differing importance. The integration of MultiCriteria Decision Analysis approaches (MCDA) in a Geographical Information System (GIS) provides a powerful spatial decision support system which offers the opportunity to efficiently produce these land suitability maps. Indeed, GIS is a powerful tool for analyzing spatial data and establishing a process for decision support. Because of their spatial aggregation functions, MCDA methods can facilitate decision making in situations where several solutions are available, various criteria have to be taken into account and decision-makers are in conflict (Dias et al., 2002). The parameters and the classification system used in this work are inspired from the FAO (Food and Agriculture Organization) approach dedicated to a sustainable agriculture. A spatial decision support system has been developed for establishing the land suitability map for agriculture. It incorporates the multicriteria analysis method ELECTRE Tri (ELimitation Et Choix Traduisant la REalité) in a GIS (ArcGIS) within the GIS program package environment. This approach has been tested on the area of Mleta in Algeria. A land suitability map for durum wheat has been produced. Through the obtained results, it appears that ELECTRE Tri method, integrated into ArcGIS 9.2 of ESRI, is better suited to the problem of land suitability for agriculture. The time saving during the development of the land suitability map for the agriculture of the durum wheat was considerable. The coherence of the obtained maps confirms the system effectiveness. © 2012 Elsevier B.V.

Gala S.,University of Mostaganem
Mathematical Methods in the Applied Sciences | Year: 2010

In this paper, we consider the regularity criteria for weak solutions to the 3D incompressible magnetohydrodynamic equations and prove some regularity criteria which are related only with u+B or u-B. This is an improvement of the result given by He and Wang (J. Differential Equations 2007; 238:1-17; Math. Meth. Appl. Sci. 2008; 31:1667-1684) and He and Xin (J. Differential Equations 2005; 213(2):235-254). © 2010 John Wiley & Sons, Ltd.

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