The domain of research of our team crosses system engineering based on reuse, component paradigm an interoperability. Our goal is to provide the integration of existing heterogeneous distributed components. This integration must be plat-form independent, in order to face the problem of middleware proliferation. First, we position our approach with regard to Model Driven Architecture. We briefly...

Iterative solvers with preconditioning are the most powerful choice for large-scale scientific computation, especially for parallel computing. In nonlinear problems such as contact simulations for geophysics, the condition numbers of the coefficient matrices are usually large due to special constraint conditions. The result is slow convergence of the iterative solver. In this study, a new pre-c...

Les valeurs, les représentations et symboles alimentaires circulent entre villes campagnes sénégalaises depuis la colonisation. La présence d’un plat partagé par majorité des Sénégalais consommé presque quotidiennement une large frange de cette population constitue occasion comprendre tensions engendrées consommation ce plat. L’accès à l’information sanitaire travers médias structures sanitaire...

A concept of the perch landing assisted by thruster (PLAT) for a fixed wind aircraft is proposed in this paper. The proposed concept is applicable to relatively large unmanned aerial vehicles (UAV), hence can overcome the limitation of existing perch landing technologies. A planar rigid body motion of an aircraft with aerodynamic and thruster forces and moments is modeled. An optimal control pr...

In recent years, online platform shopping has gradually become a mainstream method for the public. And with continuous development of China’s poverty alleviation cause in rural areas, marketing agricultural products al-so been added to marketing, but process development, various unsuitable situations have emerged, and data cannot be combined products, resulting further this mode restricted. Now...