Zobrazeno 1 - 10
of 29
pro vyhledávání: '"H. El Zoheiry"'
Autor:
H. El-Zoheiry, Abdel Moneim
Publikováno v:
Alexandria Journal of Agricultural Sciences. 66:99-104
The aim of the presnt study is to describe the male accessory glands of the tenebrionid beetle Blaps polychresta using histochemical methods and to detect the nature of their secretions. In the adult male tenebrionid beetle Blaps polychresta, there i
Publikováno v:
Alexandria Journal of Agricultural Sciences. 66:91-98
Publikováno v:
Bioorganic Chemistry. 110:104792
Twenty novel 7-benzyloxycoumarin based compounds were synthesized with a variety of bioactive chemical fragments. The synthesized compounds showed remarkable acetylcholinesterase (AChE) inhibitory activity. In vitro assay revealed that compounds 7-be
Autor:
Aisha A. Fareed, Mohammed A. El-Beltagy, Hany N. Hassan, Magdy A. El-Tawil, Hanafy H. El-Zoheiry
Publikováno v:
Applied Mathematics. :115-127
This paper deals with the construction of approximate series solutions of diffusion models with stochastic excitation and nonlinear losses using the homotopy analysis method (HAM). The mean, variance and other statistical properties of the stochastic
Publikováno v:
International Conference on Aerospace Sciences and Aviation Technology. 14:1-16
In this paper, a perturbing nonlinear non-homogeneous Schrodinger equation is studied under limited time interval, complex initial conditions and zero Neumann conditions. The perturbation and Picard approximation methods together with the eigenfuncti
Publikováno v:
The Open Applied Mathematics Journal. 4:6-17
Publikováno v:
Computers & Mathematics with Applications. 54(7-8):955-965
This paper applies the modified variational iteration method to solve a class of nonlinear partial differential equations. Boussinesq equation is used as a case-study to illustrate the simplicity and effectiveness of the method. Comparison between va
Autor:
H. El-Zoheiry
Publikováno v:
Applied Numerical Mathematics. 45:161-173
The "good" Boussinesq equation is studied numerically using an iterative implicit finite-difference scheme. The stability and accuracy of the proposed method are discussed. Soliton Solutions are shown to exist for a finite range of amplitude size. Th
Autor:
H. El-Zoheiry
Publikováno v:
Chaos, Solitons & Fractals. 14:377-384
A three-level iterative scheme based on the compact implicit method is devised for solving the improved Boussinesq equation. The scheme has order ( h 4 + h 2 k 2 + k 2 ) accuracy and retains the desirable tridiagonal nature of the finite difference e
Autor:
H. El Zoheiry, M.A. El Tawil
Publikováno v:
Chaos, Solitons & Fractals. 8:45-50
In this paper, the fluxons propagation on Josephson junction is modeled by the nonlinear Sine-Gordon equation which has received much attention in recent years. The stochastic surface current is studied under the effect of stochastic propagation velo