M. F. El-Sayed

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A nonlinear stability analysis of two superposed semi-infinite viscoelastic electrified fluids streaming through porous media in the presence of vertical electric fields admitting surface charges at their interface is investigated in three dimensions. The method of multiple scales is used to obtain a Ginzburg-Landau equation with complex coefficients(More)
This paper presents a novel approach for search engine results clustering that relies on the semantics of the retrieved documents rather than the terms in those documents. The proposed approach takes into consideration both lexical and semantics similarities among documents and applies activation spreading technique in order to generate semantically(More)
In this paper, the modified Kudryashov method or the rational Exp-function method with the aid of symbolic computation has been proposed to construct exact solutions of both the coupled equal width wave equation and the (2+1)-dimensional Nizhnik-Novikov-Veselov equations. As a result, some new types of exact traveling and solitary wave solutions are(More)
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