Zobrazeno 1 - 10
of 14 326
pro vyhledávání: '"Karim K"'
Autor:
Alessandro Forte, Thomas Gawne, Karim K. Alaa El-Din, Oliver S. Humphries, Thomas R. Preston, Céline Crépisson, Thomas Campbell, Pontus Svensson, Sam Azadi, Patrick Heighway, Yuanfeng Shi, David A. Chin, Ethan Smith, Carsten Baehtz, Victorien Bouffetier, Hauke Höppner, Alexis Amouretti, David McGonegle, Marion Harmand, Gilbert W. Collins, Justin S. Wark, Danae N. Polsin, Sam M. Vinko
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Resonant inelastic x-ray scattering (RIXS) is a widely used spectroscopic technique, providing access to the electronic structure and dynamics of atoms, molecules, and solids. However, RIXS requires a narrow bandwidth x-ray probe to achieve
Externí odkaz:
https://doaj.org/article/e2e852682ede43c985bd0f655e926434
Publikováno v:
Boundary Value Problems, Vol 2024, Iss 1, Pp 1-18 (2024)
Abstract As delays are common, persistent, and ingrained in daily life, it is imperative to take them into account. In this work, we explore the averaging principle for impulsive Atangana–Baleanu fractional stochastic delay differential equations d
Externí odkaz:
https://doaj.org/article/d2d3b174d0d546aeb4747be7e3587761
Autor:
Karim K. Ahmed, Hamdy Ahmed, Niveen M. Badra, Mohammad Mirzazadeh, Wafaa B. Rabie, Mostafa Eslami
Publikováno v:
Nonlinear Analysis, Vol 29, Iss 5 (2024)
In this study, we obtain solitary wave solutions and other exact wave solutions for Davey–Stewartson equation (DSE), which explains how waves move through water with a finite depth while being affected by gravity and surface tension. The study is c
Externí odkaz:
https://doaj.org/article/4a400c5415a64f32acd60ae8f55a23cb
Autor:
Karim K. Alaa El-Din, Oliver G. Alexander, Leszek J. Frasinski, Florian Mintert, Zhaoheng Guo, Joseph Duris, Zhen Zhang, David B. Cesar, Paris Franz, Taran Driver, Peter Walter, James P. Cryan, Agostino Marinelli, Jon P. Marangos, Rick Mukherjee
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract X-ray free-electron lasers are sources of coherent, high-intensity X-rays with numerous applications in ultra-fast measurements and dynamic structural imaging. Due to the stochastic nature of the self-amplified spontaneous emission process a
Externí odkaz:
https://doaj.org/article/962752cf06b64989924bbce9b355e779
Autor:
Karim K. Ahmed, Hamdy M. Ahmed, Mohammed F. Shehab, Tarek A. Khalil, Homan Emadifar, Wafaa B. Rabie
Publikováno v:
Physics Open, Vol 21, Iss , Pp 100233- (2024)
An extended version of (3+1)-dimensional non-linear Schrödinger equation that has a cubic–quintic nonlinear component under the stochastic effects is examined in this investigation. Several stochastic exact solutions of this model is acquired thro
Externí odkaz:
https://doaj.org/article/2b3afdcd04184b3fbae5a326ab31b6ba
Publikováno v:
Physics Open, Vol 21, Iss , Pp 100232- (2024)
Stochastic optical solitons are a fascinating phenomenon in nonlinear optics where soliton-like behavior emerges in systems affected by stochastic noise. This study investigates the influence of Brownian motion on wave propagation in optical fibers.
Externí odkaz:
https://doaj.org/article/7f9bca2773624802bb799d52aeac1330
Autor:
Karim K. Alaa El-Din, Alessandro Forte, Muhammad Firmansyah Kasim, Francesco Miniati, Sam M. Vinko
Publikováno v:
Royal Society Open Science, Vol 11, Iss 6 (2024)
A prevalent class of challenges in modern physics are inverse problems, where physical quantities must be extracted from experimental measurements. End-to-end machine learning approaches to inverse problems typically require constructing sophisticate
Externí odkaz:
https://doaj.org/article/c112d3de788d44cd9f2819732c1220f0
Autor:
Shaimaa Elkholy, Kareem Essam, Gina Gamal, Karim K. Maurice, Zeinab Abdellatif, Mohammed El-Sherbiny, Hany Haggag, Abeer Awad, Kerolis Yousef
Publikováno v:
The Egyptian Journal of Internal Medicine, Vol 35, Iss 1, Pp 1-9 (2023)
Abstract Background and study aims Peroral endoscopic myotomy (POEM) has been regarded as a novel and minimally invasive therapy for the treatment of achalasia. Data from the Middle East and North Africa (MENA) region and Arabic countries are scarce,
Externí odkaz:
https://doaj.org/article/0572b506de274ebf9a958433763d4315
Autor:
Karim K. Ahmed, Niveen M. Badra, Hamdy M. Ahmed, Wafaa B. Rabie, Mohammad Mirzazadeh, Mostafa Eslami, Mir Sajjad Hashemi
Publikováno v:
Nonlinear Analysis, Vol 29, Iss 2 (2024)
In this work, we investigate the optical solitons and other waves through magneto-optic waveguides with Kudryashov’s law of nonlinear refractive index in the presence of chromatic dispersion and Hamiltonian-type perturbation factors using the modif
Externí odkaz:
https://doaj.org/article/884a2a6ed7324e8ca64788c12f97efd2
Publikováno v:
Saudi Journal of Kidney Diseases and Transplantation, Vol 34, Iss Suppl 1, Pp S153-S160 (2023)
Interleukin-18 (IL-18) is a pro-inflammatory cytokine that rises approximately 24–48 h before a diagnosis of acute kidney injury (AKI). Kidney injury molecule-1 (KIM-1) is one of the most promising early biomarkers. It participates in the process o
Externí odkaz:
https://doaj.org/article/a961cb34863447ce8ebe5f5db1ad03c4