Results 31 to 40 of about 5,002 (274)

Model Atmospheres for Low-Field Neutron Stars [PDF]

The Astrophysical Journal, 1996
We compute model atmospheres and emergent spectra for low field (B<10^10 G) neutron stars, using new opacity and equation of state data from the OPAL project. These computations, incorporating improved treatments of flux transport and convective stability, provide spectra for hydrogen, solar abundance and iron atmospheres.
Rajagopal, Mohan, Romani, Roger
openaire   +2 more sources

A neutron star with a carbon atmosphere in the Cassiopeia A supernova remnant [PDF]

Nature, 2009
The surface of hot neutron stars is covered by a thin atmosphere. If there is accretion after neutron star formation, the atmosphere could be composed of light elements (H or He); if no accretion takes place or if thermonuclear reactions occur after accretion, heavy elements (for example, Fe) are expected.
Ho, Wynn C. G., Heinke, Craig O.
openaire   +4 more sources

What can 14 CO measurements tell us about OH?

, 2008
The possible use of 14CO measurements to constrain hydroxyl radical (OH) concentrations in the atmosphere is investigated. 14CO is mainly produced in the upper atmosphere from cosmic radiation.
Mak, J., Bergamaschi, P., Krol, M.C., Dep Natuurkunde, Meirink, J., Marine and Atmospheric Research, Meirink, J.F., Lowe, D.   +7 more
core   +1 more source

Evaluation of Single Event Effect on RK3588 Neural Processing Unit Using Spallation Neutron Irradiation and Software Fault Injection

Applied System Innovation
This research investigates atmospheric neutron-induced single event effects (SEEs) on advanced artificial intelligence (AI) chips during natural environment operation.
Weitao Yang, Wuqing Song, Huan He, Zhiliang Hu, Yonghong Li   +4 more
doaj   +1 more source

Model Atmospheres for X-ray Bursting Neutron Stars [PDF]

Symposium - International Astronomical Union, 1986
Self consistent neutron star atmospheric models have been constructed which include the effects of Comptonization, free-free and bound-free absorption. It has been demonstrated that for parameters relevant to x-ray bursting neutron stars the atmosphere does not radiate like a blackbody during any phase of an x-ray burst.
R. A. London, W. M. Howard, R. E. Taam
openaire   +1 more source

Evaluation of Atmospheric Neutron Failure Rates and Damage Mechanisms of Ultra-high Voltage Thyristor for DC Transmission

Yuanzineng kexue jishu
As the core of high-voltage direct-current transmission technology, the DC converter valve and its key power device thyristor face a high risk of failure caused by atmospheric neutron when operating in high-altitude areas. The atmospheric neutron failure
PENG Chao1, ZHOU Yang2, CHEN Zhongyuan2, LEI Zhifeng1, MA Teng1, ZHANG Zhangang1, ZHANG Hong1, HE Yujuan1
doaj   +1 more source

A neutron-induced Single Event Effects facility at the 70 MeV cyclotron of LNL-INFN

, 2014
We describe a proposed neutron irradiation facility for studyi ng neutron-i nduced Single Event Effects (SEE) in microelectronic components and systems at the new variable energy high current proton cyclotron (35-70 MeV; 750 μA) soon to be operational at
Mattiazzo, Serena
core   +2 more sources

Influence of Solar Wind on Secondary Cosmic Rays and Atmospheric Electricity

Frontiers in Earth Science, 2021
A relationship between the heliospheric magnetic field, atmospheric electric field, lightning activity, and secondary cosmic rays measured on the high mount of Lomnický Štít (2,634 m a.s.l.), Slovakia, during the declining phase of the solar cycle 24 is ...
Jaroslav Chum, Marek Kollárik, Ivana Kolmašová, Ivana Kolmašová, Ronald Langer, Jan Rusz, Dana Saxonbergová, Igor Strhárský   +7 more
doaj   +1 more source

Carboranyl‐Curcuminoids for the Neutron Capture‐Based Treatment of Amyloid Aggregates in Alzheimer's Disease

Advanced Science, EarlyView.
The 10B‐enriched monocarbonyl analog of curcumin (BMAC) 10B‐9 enables site‐specific Boron Neutron Capture Therapy (BNCT) on amyloid‐β (Aβ) fibrils. Neutron irradiation induces histidine oxidation and fibril destabilization, as revealed by 1H‐NMR and FESEM analyses.
Sebastiano Micocci, Stefano Parisotto, Diego Alberti, Alberto Lanfranco, Valeria Bitonto, Polyssena Renzi, Martina Salmi, Andrea Magnani, Federica Dal Bello, Katiuscia Pagano, Laura Ragona, Nicoletta Protti, Annamaria Deagostino, Simonetta Geninatti Crich   +13 more
wiley   +1 more source

A model of the cosmic ray induced atmospheric neutron environment

, 2015
In order to optimise the design of space instruments making use of detection materials with low atomic numbers, an understanding of the atmospheric neutron environment and its dependencies on time and position is needed.
Salinas, Maria Muñoz,, Pearce, Mark,, Kole, Merlin,   +2 more
core   +1 more source