Výsledky vyhledávání - "A. M. Elabsy"

Akademický článek

Dynamics of longitudinal impact in uniform and composite rods with effects of various support conditions

Autor: Ragab M. Etiwa, Hanaa M. Elabsy, Hesham A. Elkaranshawy

Publikováno v: Alexandria Engineering Journal, Vol 65, Iss , Pp 1-22 (2023)

A finite element formulation is developed in this paper to analyze impact-induced waves in a rod collide with a striking mass. The formulation is established based on St. Venant's contact theory. Effects of mass ratios and boundary conditions, whethe

Externí odkaz: https://doaj.org/article/4063425462204c509bdea7c97341382f

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Comparative investigation between complex energy and transfer matrix techniques for quasi-energy states in heterostructure materials

Autor: Elkenany B. Elkenany, A. M. Elabsy

Publikováno v: Journal of Materials Science: Materials in Electronics. 33:22469-22479

A comparative analysis is performed to study the resonant tunneling through symmetric multiple double-barrier resonant tunneling heterostructure materials composed of nanoscale semiconductors ZnSe/BeTe, AlAs/GaAs, InGaAs/AlInAs, and AlGaAs/GaAs. Two

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2fe55a70b7290ff458fbdf02685a3052
https://doi.org/10.1007/s10854-022-09025-8

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Suppressing the spiking of a synchronized array of Izhikevich neurons

Autor: Hesham A. Elkaranshawy, Nermeen M. Aboukelila, Hanaa M. Elabsy

Publikováno v: Nonlinear Dynamics. 104:2653-2670

The aim of this research work is to investigate the synchronization and desynchronization of an array of non-identical Izhikevich neurons in a star-like configuration. Both regular spiking neurons and fast spiking neurons are considered in the analys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d19b5f572b1dbd34f814e3cdaaa37fe
https://doi.org/10.1007/s11071-021-06388-1

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Finite Element Analysis of the Longitudinal Impact of a Rod with Various Support Conditions

Autor: Ragab M. Etiwa, Hesham A. Elkaranshawy, Hanaa M. Elabsy

Publikováno v: International Journal of Mechanical Engineering and Robotics Research. :626-632

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3bf4f23fb321a7ad2782636bfc50d17
https://doi.org/10.18178/ijmerr.10.11.626-632

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Application of Successful New Downhole Fluid Sampling Technique in Ultra Low Permeability Reservoir in Abu Dhabi Onshore

Autor: Hamad A Khairy, Ahmed M Soliman, Islam M Elabsy, Syofvas Syofyan, Andrey Nestyagin, Tareq A Al-Shabibi, Tengku Mohd Fauzi, Viraj Nitin Telang, Javier A Fraquet, Sefer B Coskun

Publikováno v: Day 2 Tue, November 16, 2021.

Downhole reservoir fluids sampling in tight formations has been a continuous challenge due to various reasons. The paper presents a technique of successfully collecting downhole fluid samples for first time in ultra-low permeability reservoir having

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90d5d6de3fc000fd0116692eed6a24ad
https://doi.org/10.2118/207388-ms

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Impact of pressure on the resonant energy and resonant frequency for two barriers Ga1−xAlxAs/GaAs nanostructures

Autor: Elkenany B. Elkenany, A M Elabsy

Publikováno v: Physica Scripta. 98:015809

We study the effect of hydrostatic pressure on resonant frequency (ν 1) and its associated lifetime (τ 1), and energy (E1) for electrons tunneling through GaAs-AlGaAs two-barrier nanostructure (TBNS). The effective mass mismatch for well and barrie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7286f46775a448d9a9b862878a5219d3
https://doi.org/10.1088/1402-4896/aca5cb

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Combined effect of the screening of a donor ion and the conduction band nonparabolicity on the binding energy of a donor at the center of a spherical quantum dot

Autor: P. Csavinszky, A. M. Elabsy

Publikováno v: International Journal of Quantum Chemistry. 60:1719-1722

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e89b00219e7659644801f6f0580004a0
https://doi.org/10.1002/(sici)1097-461x(1996)60:7<1719::aid-qua55>3.0.co

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Effect of the Gamma -X crossover on the binding energies of confined donors in single GaAs/AlxGa1-xAs quantum-well microstructures

Autor: A M Elabsy

Publikováno v: Journal of Physics: Condensed Matter. 6:10025-10030

The present work investigates the effect of the Gamma -X crossover at low temperatures on the donor binding energies in single-quantum-well (QW) microstructures. It is found that, at a constant QW thickness, the predicted donor binding energies are e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5efccfb713b43456cbf8994bc42c7e6
https://doi.org/10.1088/0953-8984/6/46/019

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Effect of nonparabolicity of the GaAs conduction band on the binding energy of a hydrogenic donor in a GaAs/Ga1 ?x Al x As quantum dot

Autor: A. M. Elabsy, P. Csavinszky

Publikováno v: Journal of Mathematical Chemistry. 16:309-313

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a41fb3b5b896cbed4ab806e71bbf0df
https://doi.org/10.1007/bf01169215

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Maximum entropy for linear Boltzmann equation

Autor: Abdel Razik Degheidy, Magdy A. Madkour, A. M. Elabsy

Publikováno v: Journal of Physics D: Applied Physics. 26:909-912

The maximum entropy approach is used to calculate the escape probability, the emergent and transmitted intensities for a finite slab, and the emergent intensity for a semi-infinite medium. Numerical values are given and compared with the exact result

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59f649306bf2908b0c97c58ea5784259
https://doi.org/10.1088/0022-3727/26/6/002

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