Results 31 to 40 of about 7,387,380 (321)
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
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
The Microwave Background Radiation [PDF]
We review the data on the spectrum and isotropy of the microwave background radiation and the astrophysical processes that may produce spectral distortions and anisotropies. As yet no fully satisfactory explanation has been found for the submillimeter excess observed by Matsumotoet al.(1988).
DEZOTTI G +3 more
openaire +2 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
Investigation on the Background Radiation of Abakaliki Rice Mill in Ebonyi State, Nigeria
This study investigated the background ionizing radiation of Abakaliki rice mills. The requirement to monitor this site is because the prevalent activities in the site suggest that it is a source of ionizing radiation.
A. Nwachukwu +2 more
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
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
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
В работе представлены результаты исследования гамма-фона от объектов техносферы в городской среде г. Томска, Россия, с помощью высокочувствительных детекторов БДКГ-03.
Яковлев, Г.А., Зулу, М.Ч.
doaj +1 more source

