Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Rehab M. El –Shiekh"'
Autor:
Mahmoud Gaballah, Rehab M. El-Shiekh
Publikováno v:
Alexandria Engineering Journal, Vol 114, Iss , Pp 419-425 (2025)
We try to study the propagation of ultrashort optical pulses in dispersion-decreasing fibers using the variable coefficients higher-order nonlinear Schrödinger (VCHNLS) equation. By applying the Jacobi expansion technique combined with a similarity
Externí odkaz:
https://doaj.org/article/29563a968211450f9bfbcd59a2428454
Autor:
Mahmoud Gaballah, Rehab M. El-Shiekh
Publikováno v:
Alexandria Engineering Journal, Vol 95, Iss , Pp 24-29 (2024)
Graphene has appeared as one of the most promising nanomaterials with unique thermal, electronic and mechanical properties which make it suitable for many applications in materials science, energy storage, electronics, water filtration and medicine.
Externí odkaz:
https://doaj.org/article/3f346adf9dc4411fbf0bba62a899b8ef
Autor:
Rehab M. El-Shiekh, Mahmoud Gaballah
Publikováno v:
Alexandria Engineering Journal, Vol 86, Iss , Pp 548-555 (2024)
In this paper, a new extension of the perturbed nonlinear Chen-Lee-Liu equation as a variable coefficients model represents optical pulse propagation in a monomode fiber is studied. The direct similarity reduction method is used to transform the Chen
Externí odkaz:
https://doaj.org/article/1616854309e345048884f29c32e83c6e
Autor:
Mahmoud Gaballah, Rehab M. El-Shiekh
Publikováno v:
Journal of Taibah University for Science, Vol 17, Iss 1 (2023)
In this study, the two-dimensional Bogoyavlensky–Konopelchenko equation with variable coefficients (vcBK) which describes the interaction of Riemann waves has been solved two times by using the balance technique. First, the balance procedure was us
Externí odkaz:
https://doaj.org/article/ff0952e00ae0463a82f4c0c9fd92c7f2
Autor:
Rehab M. El-Shiekh, Mahmoud Gaballah
Publikováno v:
Journal of Ocean Engineering and Science, Vol 7, Iss 4, Pp 372-376 (2022)
In this study, the generalized modified variable-coefficient KdV equation with external-force term (gvcmKdV) describing atmospheric blocking located in the mid-high latitudes over ocean is studied for integrability property by using consistent Riccat
Externí odkaz:
https://doaj.org/article/ed62d0e417e44ec1a4f21bed5d9793b4
Autor:
Rehab M. El-Shiekh, Mahmoud Gaballah
Publikováno v:
Partial Differential Equations in Applied Mathematics, Vol 6, Iss , Pp 100408- (2022)
In this study, a (3+1)-dimensional modified Kadomtsev–Petviashvili system with variable-coefficients (vcmKP) arising in many fields of science like plasma physics, optics, and fluid mechanics is studied. The consistent Riccati expansion solvability
Externí odkaz:
https://doaj.org/article/9eecdd4d869b40a0bfb369565e58798a
Publikováno v:
Results in Physics, Vol 40, Iss , Pp 105782- (2022)
The variable-coefficients 3D-Kudryashov–Sinelshchikov (vcKS) equation is an important mathematical model that describes the pressure of gas bubbles in the liquid, and is considered as an impressive phenomenon with many applications in medicine, oce
Externí odkaz:
https://doaj.org/article/2258eca7a2f840d1badc4bed9568684c
Autor:
Rehab M. El-Shiekh, Mahmoud Gaballah
Publikováno v:
Journal of Ocean Engineering and Science, Vol 5, Iss 2, Pp 180-185 (2020)
In this study, the sine-Gordon equation method is modified to deal with variable-coefficient systems containing imaginary parts, such as nonlinear Schrödinger systems. These are of considerable importance in many fields of research, including ocean
Externí odkaz:
https://doaj.org/article/ac714ea5d5e94f5faef5a879c516ddbb
Autor:
Rehab M. El-Shiekh, Mahmoud Gaballah
Publikováno v:
Journal of Taibah University for Science, Vol 14, Iss 1, Pp 783-789 (2020)
In this paper, the variable coefficients Davey–Stewartson system represents many physical phenomena in shallow water waves, quantum and optics, etc, is transformed directly into nonlinear ordinary differential system by using the new modification t
Externí odkaz:
https://doaj.org/article/66a3244978c74523ae3c87a2a92a5186
Autor:
Rehab M. El-Shiekh
Publikováno v:
Arab Journal of Basic and Applied Sciences, Vol 25, Iss 2, Pp 66-70 (2018)
In this paper, a generalized variable-coefficients KdV equation (gvcKdV) arising in fluid mechanics, plasma physics and ocean dynamics is investigated by using symmetry group analysis. Two basic generators are determined, and for every generator, the
Externí odkaz:
https://doaj.org/article/23c4b2f2ab654c5f845e65869fb87a88