Zobrazeno 1 - 10
of 19 168
pro vyhledávání: '"Badawi, A"'
Implementing the concept of Dark Fluid with a Chaplygin-like equation of state within General Relativity, we construct a new higher-dimensional, static, and spherically symmetric anti-de Sitter (AdS) black hole solution. Energy conditions are explore
Externí odkaz:
http://arxiv.org/abs/2407.08326
We investigate shadows, deflection angle, quasinormal modes (QNMs), and sparsity of Hawking radiation of the Schwarzschild string cloud black hole's solution after applying quantum corrections required by the Generalised Uncertainty Principle (GUP).
Externí odkaz:
http://arxiv.org/abs/2406.17501
In this paper, different techniques of few-shot, zero-shot, and regular object detection have been investigated. The need for few-shot learning and zero-shot learning techniques is crucial and arises from the limitations and challenges in traditional
Externí odkaz:
http://arxiv.org/abs/2406.16143
Autor:
Al-Badawi, Ahmad, Jha, Sohan Kumar
Publikováno v:
Communications in Theoretical Physics 2024
This article considers a static and spherical black hole (BH) in f(Q) gravity. f(Q) gravity is the extension of symmetric teleparallel general relativity, where both curvature and torsion are vanishing, and gravity is described by nonmetricity. In th
Externí odkaz:
http://arxiv.org/abs/2406.15526
Autor:
Li, Siqi, Abdelhafez, Yasser G., Nardo, Lorenzo, Cherry, Simon R., Badawi, Ramsey D., Wang, Guobao
Standard Patlak plot is widely used to describe FDG kinetics for dynamic PET imaging. Whole-body Patlak parametric imaging remains constrained due to the need for a full-time input function. Here, we demonstrate the Relative Patlak (RP) plot, which e
Externí odkaz:
http://arxiv.org/abs/2406.09720
Autor:
Al-Badawi, Ahmad
Publikováno v:
Phys. Scr. 99 (2024) 065002
The purpose of this study is to investigate the quasinormal modes (QNMs), greybody factors (GFs) and shadows in a plasma of a black hole (BH) surrounded by an exotic fluid of quintessence type in a scalar-vector-tensor modified gravity. The effects o
Externí odkaz:
http://arxiv.org/abs/2405.12074
Autor:
Xie, Huidong, Gan, Weijie, Zhou, Bo, Chen, Ming-Kai, Kulon, Michal, Boustani, Annemarie, Spencer, Benjamin A., Bayerlein, Reimund, Chen, Xiongchao, Liu, Qiong, Guo, Xueqi, Xia, Menghua, Zhou, Yinchi, Liu, Hui, Guo, Liang, An, Hongyu, Kamilov, Ulugbek S., Wang, Hanzhong, Li, Biao, Rominger, Axel, Shi, Kuangyu, Wang, Ge, Badawi, Ramsey D., Liu, Chi
As PET imaging is accompanied by radiation exposure and potentially increased cancer risk, reducing radiation dose in PET scans without compromising the image quality is an important topic. Deep learning (DL) techniques have been investigated for low
Externí odkaz:
http://arxiv.org/abs/2405.12996
Let $R$ be a commutative ring with $1 \neq 0$. A proper ideal $I$ of $R$ is a {\it square-difference factor absorbing ideal} (sdf-absorbing ideal) of $R$ if whenever $a^2 - b^2 \in I$ for $0 \neq a, b \in R$, then $a + b \in I$ or $a - b \in I$. In t
Externí odkaz:
http://arxiv.org/abs/2402.18704
Publikováno v:
Eur. Phys. J. C (2024) 84:145
A hairy black hole (HBH) emerges due to matter surrounding the Schwarzschild metric when using the Extended Gravitational Decoupling (GD) approach. The fermionic greybody factors (GFs) and quasinormal modes (QNMs) as well as Hawking spectra and spars
Externí odkaz:
http://arxiv.org/abs/2402.06739
Autor:
Zhu, Yansong, Li, Siqi, Xie, Zhaoheng, Leung, Edwin K., Bayerlein, Reimund, Omidvari, Negar, Cherry, Simon R., Qi, Jinyi, Badawi, Ramsey D., Spencer, Benjamin A., Wang, Guobao
X-ray computed tomography (CT) in PET/CT is commonly operated with a single energy, resulting in a limitation of lacking tissue composition information. Dual-energy (DE) spectral CT enables material decomposition by using two different x-ray energies
Externí odkaz:
http://arxiv.org/abs/2402.02091