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Integral Reduction Arising in Double Transfer and Excitation Amplitude

Communications in Theoretical Physics 2010年第3期53卷 551-554页

作者： A.Zerarla A.Soukeur n.bensalah Labo of Theoretical Physics University Med Khider

The purpose of this article is to develop an integral derived from the double transfer and excitation theory. The reduced form of this integral, so obtained, can serve in the computation of the transition amplitude which is from numerical point of view difficult to implement. This amplitude is of great interest in the resonant and non resonant transfer and excitation （RTE and nTE） processes.

关键词： amplitude resonant transfer excitation integral

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Artificial perturbation for solving the Korteweg-de Vries equation

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第12期7卷 2079-2082页

作者： KHELIL n. bensalah n. SAIDI H. ZERARKA A. Laboratory of Physics and Applied Mathematics University Med Khider BP 145 07000 Biskra Algeria

A perturbation method is introduced in the context of dynamical system for solving the nonlinear Korteweg-de Vries (KdV) equation. Best efficiency is obtained for few perturbative corrections. It is shown that, the question of convergence of this approach is completely guaranteed here, because a limited number of term included in the series can describe a sufficient exact solution. Comparisons with the solutions of the quintic spline, and finite difference are presented.

关键词： Perturbation Taylor series Quintic spline Korteweg-de Vries (KdV) equation

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Chiral supramolecular gold-cysteine nanoparticles: Chiroptical and nonlinear optical properties

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Progress in natural Science:Materials International 2016年第5期26卷 455-460页

作者： Isabelle Russier-Antoine Franck Bertorelle Alexander Kulesza Antonin Soleilhac Amina bensalah-Ledoux Stephan Guy Philippe Dugourd Pierre-Fran?ois Brevet Rodolphe Antoine Univ Lyon Université Claude Bernard Lyon 1 CNRS Institut Lumière Matière

Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts to noble metal surfaces. We report a simple synthetic approach for the production of chiral gold-cysteine polymeric nanoparticles soluble in water. Conjugation of cysteine with gold in a polymeric way, leading to;0 nm diameter nanoparticles, resulted in the generation of new characteristic circular dichroism（CD） signals in the region of 250–400 nm, whereas no CD signal changes were found with cysteine alone. We also investigate their nonlinear optical properties after two-photon absorption. Two-photon emission spectra and first hyperpolarizabilities, as obtained by the hyper-Rayleigh scattering technique, of these particles are presented.

关键词： Gold Cysteine Supramolecular chemistry nanoparticles Chirality nonlinear optics

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A Massively Parallel Re-Configurable Mesh Computer Emulator: Design, Modeling and Realization

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Journal of Software Engineering and Applications 2010年第1期3卷 11-26页

作者： Mohamed YOUSSFI Omar BOUATTAnE Mohamed O. bensalah 不详

Emulating massively parallel computer architectures represents a very important tool for the parallel programmers. It allows them to implement and validate their algorithms. Due to the high cost of the massively parallel real machines, they remain unavailable and not popular in the parallel computing community. The goal of this paper is to present an elaborated emulator of a 2-D massively parallel re-configurable mesh computer of size n x n processing elements (PE). Basing on the object modeling method, we develop a hard kernel of a parallel virtual machine in which we translate all the physical properties of its different components. A parallel programming language and its compiler are also devel-oped to edit, compile and run programs. The developed emulator is a multi platform system. It can be installed in any sequential computer whatever may be its operating system and its processing unit technology (CPU). The size n x n of this virtual re-configurable mesh is not limited;it depends just on the performance of the sequential machine supporting the emulator.

关键词： Parallel processing Object Modeling Re-Configurable Mesh Computer Emulation XML Parallel Virtual Machine

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Distributed C-Means Algorithm for Big Data Image Segmentation on a Massively Parallel and Distributed Virtual Machine Based on Cooperative Mobile Agents

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Journal of Software Engineering and Applications 2015年第3期8卷 103-113页

作者： Fatéma Zahra Benchara Mohamed Youssfi Omar Bouattane Hassan Ouajji Mohammed Ouadi bensalah Laboratory SSDIA ENSET Mohammedia University Hassan II of Casablanca Casablanca Morocco FSR University Mohammed V Rabat Morocco

The aim of this paper is to present a distributed algorithm for big data classification, and its application for Magnetic Resonance Images (MRI) segmentation. We choose the well-known classification method which is the c-means method. The proposed method is introduced in order to perform a cognitive program which is assigned to be implemented on a parallel and distributed machine based on mobile agents. The main idea of the proposed algorithm is to execute the c-means classification procedure by the Mobile Classification Agents (Team Workers) on different nodes on their data at the same time and provide the results to their Mobile Host Agent (Team Leader) which computes the global results and orchestrates the classification until the convergence condition is achieved and the output segmented images will be provided from the Mobile Classification Agents. The data in our case are the big data MRI image of size (m × n) which is splitted into (m × n) elementary images one per mobile classification agent to perform the classification procedure. The experimental results show that the use of the distributed architecture improves significantly the big data segmentation efficiency.

关键词： Multi-Agent System Distributed Algorithm Big Data Image Segmentation MRI Image C-Means Algorithm Mobile Agent

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