Results 31 to 40 of about 7,188,407 (346)
Decoherence in the cosmic background radiation [PDF]
15 pages, accepted to be published in Classical and Quantum ...
Franco, Mariano Andrés+1 more
openaire +4 more sources
Stringent Limit on Primordial Magnetic Fields from the Cosmic Microwave Background Radiation. [PDF]
Primordial magnetic fields (PMFs), being present before the epoch of cosmic recombination, induce small-scale baryonic density fluctuations. These inhomogeneities lead to an inhomogeneous recombination process that alters the peaks and heights of the ...
K. Jedamzik, A. Saveliev
semanticscholar +1 more source
Работа посвящена проверка возможности замены промышленно выпускаемых радиометров радона более экономичными детекторами альфа- и/или бета-излучения для проведения круглогодичного и периодического мониторинга радона в городской атмосфере. Выявлена значимая
Яковлев, Г.А.+1 more
doaj +1 more source
Light bending in radiation background [PDF]
We consider the velocity shift of light in presence of radiation emitted by a black body. Within geometric optics formalism we calculate the bending angle of a light ray when there is a gradient in the energy density. We model the bending for two simplified cases.
Kim, Jin Young, Lee, Taekoon
openaire +3 more sources
On distortion of the background radiation spectrum by wormholes: kinematic Sunyaev-Zel’dovich effect [PDF]
The problem of scattering of the background radiation on relic cosmological wormholes is considered. It is shown that static wormholes do not perturb the spectrum at all. The presence of peculiar velocities of wormholes results in a distortion of the CMB
A. Kirillov, E. P. Savelova
semanticscholar +1 more source
Adaptive Suppression Method of LiDAR Background Noise Based on Threshold Detection
Background radiation in the LiDAR detection field of view is complex and variable, and the background noise generated can easily cause false alarms in the receiver, which affects the effective detection of the system.
Yan Jiang+5 more
doaj +1 more source
The cosmic microwave background radiation [PDF]
We summarize the theoretical and observational status of the study of the Cosmic Microwave Background radiation. Its thermodynamic spectrum is a robust prediction of the Hot Big Bang cosmology and has been confirmed observationally. There are now 76 observations of Cosmic Microwave Background anisotropy, which we present in a table with references.
Eric Gawiser, Joseph Silk, Joseph Silk
openaire +3 more sources
Progress in biological and medical research in the deep underground: an update
As the growing population of individuals residing or working in deep underground spaces for prolonged periods, it has become imperative to understand the influence of factors in the deep underground environment (DUGE) on living systems.
Yuhao Zou+17 more
doaj +1 more source
Photon–Photon Interactions and the Opacity of the Universe in Gamma Rays
We discuss the topic of the transparency of the Universe in gamma rays due to extragalactic background light, and its cosmological and physical implications.
Alberto Franceschini
doaj +1 more source
A Survey taken by the world health organization (WHO) and the international commission on radiation protection (ICRP) shows that residents of temperate climate spends only about 20% of their time outdoor and about 80% indoors and certain materials use ...
J.T. Baraya, M.H. Sani, M Alhassan
doaj +1 more source