Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Khaled Lotfy"'
Autor:
Hashim M. Alshehri, Khaled Lotfy
Publikováno v:
Heliyon, Vol 10, Iss 19, Pp e38388- (2024)
The goal of this work is to provide a novel mathematical model that explains how certain physical variables propagate (acoustic-thermal-mechanical diffusive) as waves in a photoexcited non-Gaussian laser pulse semiconductor medium. Under the impact o
Externí odkaz:
https://doaj.org/article/ab7636cd9b3e40a29a206488c0630ed8
Publikováno v:
Results in Physics, Vol 61, Iss , Pp 107715- (2024)
This study explores the behavior of laser-exposed photo-excited carriers, investigating the propagation of photoacoustic waves in the thermoelastic domain. It also delves into the theoretical generation of surface acoustic waves in semiconductors thr
Externí odkaz:
https://doaj.org/article/708c55e591524964b66e62f1a0e397cf
Publikováno v:
Case Studies in Thermal Engineering, Vol 54, Iss , Pp 104025- (2024)
This work aims to study the influence of fractional derivatives and thermal relaxation time on two-dimensional biological tissues using an eigenvalue-based approach. Understanding the heat transfer mechanism and its thermomechanical interactions with
Externí odkaz:
https://doaj.org/article/9bb6822ce05a4c38a192eaf3be84e96d
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-15 (2023)
Abstract Outlined here is an innovative method for characterizing a layer of microelongated semiconductor material under excitation. Fractional time derivatives of a heat equation with a rotational field are used to probe the model during photo-excit
Externí odkaz:
https://doaj.org/article/d5424ad655314678984b25eb3a160ead
Publikováno v:
Journal of Mathematics, Vol 2024 (2024)
The theory of photo-thermoelasticity describes how heating or elastic microstructure mechanical deformation can modify a material’s optical-thermal properties. This theory particularly highlights the effect of microtemperature on elasticity and eff
Externí odkaz:
https://doaj.org/article/5bfdab4299814af6b078deaea2653a5a
Autor:
Khaled Lotfy, Shreen El-Sapa, Abdelaala Ahmed, Alaa A. El-Bary, Ramadan S. Tantawi, Marwa H. Ahmed, Eslam S. Elidy
Publikováno v:
AIP Advances, Vol 14, Iss 1, Pp 015316-015316-10 (2024)
This paper presents the results of an investigation that focuses on the stochastic wave propagation that occurs within an elastic medium when the thermoelectric properties are taken into consideration. It has been found that there is a clear associat
Externí odkaz:
https://doaj.org/article/e1fa74556c1949c2839e64d773a29c9e
Autor:
Mahjoub A. Elamin, Shreen El-Sapa, Houda Chtioui, Riadh Chteoui, Nermin Anwer, Alaa El-Bary, Ramadan S. Tantawi, Khaled Lotfy
Publikováno v:
AIP Advances, Vol 13, Iss 12, Pp 125018-125018-13 (2023)
This study examines a new model for a solid semiconductor porosity medium with variable thermal conductivity under photo-thermoelastic conditions using two-temperature theory. A normal mode analysis is carried out to solve the equations in two dimens
Externí odkaz:
https://doaj.org/article/9f4f65a08d044203b0359583bd821032
Publikováno v:
AIP Advances, Vol 13, Iss 11, Pp 115115-115115-14 (2023)
This paper presents a theoretical investigation of linear thermal conductivity temperature-dependent coupled elasto-thermoelectronic diffusion (ETD) waves in a micro-temperature semiconductor, specifically focusing on the effects of photo-excited pro
Externí odkaz:
https://doaj.org/article/bc43b7897e054566902f4221e325b6af
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
In this study, we investigate the effect of a rotation field on a homogeneous photo-thermoelastic nonlocal material and how its thermal conductivity changes as a result of a linearly distributed thermal load. The thermal conductivity of an interior p
Externí odkaz:
https://doaj.org/article/3f3f42f1902e431397a3073d315bfe80
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 12, Pp 11753-11764 (2022)
The present study introduces a theoretical framework according to the Moore-Gibson-Thompson (MGT) Model in the context of generalized thermoelasticity theory. The excited semiconductor material is utilized to formulate the governing equations in one
Externí odkaz:
https://doaj.org/article/062da484f8e24817b2eae8bf8328d1f9