Results 91 to 100 of about 1,265,099 (265)

Probing the Dipole of the Diffuse Gamma-Ray Background

open access: yesThe Astrophysical Journal Letters
We measured the dipole of the diffuse γ -ray background (DGB), identifying a highly significant time-independent signal coincidental with that of the Pierre Auger UHECR.
A. Kashlinsky   +2 more
doaj   +1 more source

ARCHITECTURE OF THE SPACE RADIATION SENSOR SATELLITE MODULE BASED ON ARTIFICIAL INTELLIGENCE

open access: yesJournal of Engineering Science (Chişinău)
This paper is dedicated to the study of the cosmic radiation and its effects on electronics, as well as methods to measure it in order to aid the elaboration of the architecture of the satellite module with space radiation ...
SECRIERU, Nicolae   +7 more
doaj   +1 more source

Radiation doses along selected flight profiles during two extreme solar cosmic ray events [PDF]

open access: yes, 2011
The radiation dose rates at flight altitudes may be hazardously increased during solar cosmic ray events. Within the scope of this paper we investigate the total accumulated radiation doses, i.e. the contribution of galactic and solar cosmic rays, during
Bütikofer, R.   +3 more
core   +2 more sources

Survey on Compositional 3D Indoor Scene Generation

open access: yesComputer Graphics Forum, EarlyView.
This survey provides a comprehensive overview of compositional 3D indoor scene generation, introducing a unified framework for categorizing existing methods, comparing their strengths and limitations and identifying key challenges and future research directions.
H. I. I. Tam   +7 more
wiley   +1 more source

The lateral distribution of Cerenkov light in large cosmic ray showers as a measure of longitudinal development [PDF]

open access: yes, 1984
This thesis reports measurements made on the longitudinal cascade of high energy cosmic ray showers using observations of atmospheric Cerenkov light. The lateral distribution of the Cerenkov light shower has been shown to be one of the measurable ground ...
Craig, M.A.B, Craig, M
core  

Comparison of codes assessing galactic cosmic radiation exposure of aircraft crew [PDF]

open access: yes, 2009
International audienceThe assessment of the exposure to cosmic radiation onboard aircraft is one of the preoccupations of bodies responsible for radiation protection.
Bütikofer, R.   +21 more
core   +2 more sources

Unraveling the active site cover of coproheme decarboxylase from Listeria monocytogenes

open access: yesThe FEBS Journal, EarlyView.
During heme biosynthesis in Gram‐positive bacteria, coproheme decarboxylase (ChdC) catalyzes the conversion of four‐propionate substrate coproheme to the two propionate product heme b. Its active site is universally covered by a flexible linking loop. This study identifies an important histidine residue, which stabilizes the loop in a ChdC homolog.
Nikolaus Falb   +4 more
wiley   +1 more source

Photochemical effects of Mars‐like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on Mars

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner   +7 more
wiley   +1 more source

Further Characterization of the Mitigation of Radiation Lethality by Protective Wounding

open access: yes, 2017
There continues to be a major effort in the United States to develop mitigators for the treatment of mass casualties that received high-intensity acute ionizing radiation exposures from the detonation of an improvised nuclear device during a radiological
Joy Garrett   +11 more
core   +1 more source

Bolide Light Curve Systematics from 75 Recovered Meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens   +3 more
wiley   +1 more source

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