Results 31 to 40 of about 6,884 (245)
Impact of Interacting Parameters on Dark Matter in an Interacting Dark Energy Model
The Astrophysical Journal Supplement SeriesThis paper investigates a dark energy model within the Friedmann–Lemaître–Robertson–Walker cosmological framework, considering both interacting and noninteracting scenarios.
Himanshu Chaudhary +3 more
doaj +1 more source
Neutrinos and Big Bang Nucleosynthesis
Advances in High Energy Physics, 2012 According to the standard models of particle physics and cosmology, there should be a background of cosmic neutrinos in the present Universe, similar to the cosmic microwave photon background.
Gary Steigman
doaj +1 more source
Lensing Reconstruction from the Cosmic Microwave Background Polarization with Machine Learning
The Astrophysical Journal, 2023 The lensing effect of the cosmic microwave background (CMB) is a powerful tool for our study of the distribution of matter in the universe. The quadratic estimator (QE) method, which is widely used to reconstruct lensing potential, has been known to be ...
Ye-Peng Yan +4 more
doaj +1 more source
Advanced Energy Materials, EarlyView.Partially disordered Cr‐based Li‐rich oxides are developed, featuring ordered, layered‐like environments integrated through a common oxygen sublattice with cation‐mixed regions. This activates new Li+ diffusion channels, enabling these cathodes to be used in their as‐synthesized form with micron‐sized particles.
Maciej Moździerz +10 more
wiley +1 more source
Probing the Global 21 cm Background by Velocity-induced Dipole and Quadrupole Anisotropies
The Astrophysical JournalThe motion of an observer in the rest frame of the cosmic 21 cm background induces an anisotropy in the observed background, even when the background is isotropic.
Selim C. Hotinli, Kyungjin Ahn
doaj +1 more source
The Astrophysical Journal, 2023 Reliable extraction of cosmological information from observed cosmic microwave background (CMB) maps may require removal of strongly foreground-contaminated regions from the analysis. In this paper, we employ an artificial neural network (ANN) to predict
Srikanta Pal, Pallav Chanda, Rajib Saha
doaj +1 more source
The angular distribution of the cosmic background radiation [PDF]
Reports on Progress in Physics, 1986 AbstractCrucial cosmological information is provided by the observed angular distribution (isotropy) of the cosmic microwave background radiation. This report treats the current status of searches for anisotroples in this radiation on all angular scales from 180° (the dipole component) to 6″.
openaire +3 more sources
Conformal Invariance and Cosmic Background Radiation [PDF]
Physical Review Letters, 1997 The spectrum and statistics of the cosmic microwave background radiation (CMBR) are investigated under the hypothesis that scale invariance of the primordial density fluctuations should be promoted to full conformal invariance. As in the theory of critical phenomena, this hypothesis leads in general to deviations from naive scaling.
Ignatios Antoniadis +2 more
openaire +3 more sources
Swarm‐Optimized ZnO/CdS/CIGS/GaAs Solar Cell for Enhanced Efficiency and Thermal Resilience
Advanced Energy and Sustainability Research, EarlyView.This article addresses the problem of optimizing the efficiency and thermal resilience of ZnO/CdS/CIGS solar cells, which are promising but still face challenges in maximizing performance under high‐temperature conditions and concentrated sunlight. The main issue is enhancing the efficiency of these cells while also ensuring that they can withstand the
Habib Ullah Manzoor +4 more
wiley +1 more source
Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions
Advanced Intelligent Systems, EarlyView.Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley +1 more source