In this work we have improved, and adapted a domestic microwave oven working under 2.45 GHz, to lead us to reach high temperatures. The heat system is constituted essentially with susceptor (heating element) and heat ...

"The work of this Magister’s memory is in the framework of the General Theory of Relativity of Einstein. After a short introduction, followed by a concise but complete presentation of general relativity in order to dispense ...

In this manuscript we interested in the development of reactions with multicomponent producing novel molecules through studying the efficiency of new catalysts. This thesis consists of two main parts: The first part has ...

This work studies the nickel anchored on several oxides, in the aim to be used as benzene hydrogenation catalyst. The metal ions, adsorbed on the oxide surface, are reduced under ? radiation in aqueous solution. The ...