Results 71 to 80 of about 40,102 (196)

A Study on the Energy Condition and Quantitative Analysis of the Occurrence of a Coal and Gas Outburst

Shock and Vibration, 2019
With mining depths increasing, coal and gas outburst disasters are becoming more and more serious and complicated, which directly restricts the production efficiency of coal mines.
Linchao Dai, Yanbao Liu, Jie Cao, Xuelin Yang, Haitao Sun, Guangcai Wen, Bo Wang   +6 more
doaj   +1 more source

Gas Release Characteristics in Coal under Different Stresses and Their Impact on Outbursts

Energies, 2018
The impact mechanism of in situ stress on outbursts plays a key role in the prevention of outbursts during deep coal mining. The in situ stress may influence the outburst by affecting the gas release intensity according to theoretical analysis, but none ...
Hanpeng Wang, Bing Zhang, Liang Yuan, Guofeng Yu, Wei Wang   +4 more
doaj   +1 more source

ASCA Observations of the Jet Source XTE J1748-288

, 2000
XTE J1748-288 is a new X-ray transient with a one-sided radio jet. It was observed with ASCA on 1998/09/06 and 1998/09/26, 100 days after the onset of the radio-X-ray outburst.
F. Nagase, Hameury J. M., Hjellming R. M., K. Yamaoka, M. Namiki, M. Sakano, Makishima K., Mewe R., Mineshige S., N. Kawai, R. M. Hjellming, T. Kotani, T. Takeshima, Tanaka Y., Y. Ueda   +14 more
core   +3 more sources

Mechanisms for the Outbursts of Soft X-ray Transients

, 1996
9 pages, 3 figures, Astronomy & Astrophysics in ...
Lasota, J-P., Narayan, R., Yi, I.
openaire   +2 more sources

Failure determination method regarding local outburst prevention measures for coal and gas outburst

Meitan xuebao
Discharge holes is the primary measure concerning local outburst prevention, however, in recent years, there have been numerous instances of accidents in which outburst still occurred, after drilling outburst prevention holes and taking local outburst ...
Chengwu LI, Zhen QIAO
doaj   +1 more source

The X-ray emission from Z CMa during an FUor-like outburst and the detection of its X-ray jet

, 2009
Accretion shocks have been recognized as important X-ray emission mechanism for pre-main sequence stars. Yet the X-ray properties of FUor outbursts, events that are caused by violent accretion, have been given little attention.
Acke, Audard, B. Stelzer, Bally, Bell, Bonito, Bonnell, Elia, Evans, Freeman, G. Micela, Güdel, Günther, Hartmann, Hartmann, Herbig, Kastner, Kastner, Koresko, Kraft, Lorenzetti, M. Schöller, Murphy, Nakajima, Poetzel, Pravdo, Reipurth, S. Hubrig, S. Orlando, Schmitt, Schneider, Skinner, Skinner, Stelzer, Stelzer, Stelzer, van den Ancker, Velázquez, Z. Mikulášek, Ábrahám   +39 more
core   +1 more source

Deciphering cometary outbursts: linking gas composition changes to trigger mechanisms

Monthly Notices of the Royal Astronomical Society
ABSTRACT Dust and gas outbursts are recurrent cometary phenomena, playing a crucial role in shaping the coma. Proposed outburst trigger mechanisms include cliff collapse, pressure pockets, and amorphous-to-crystalline phase transition of water ice; however, the underlying processes remain inadequately understood.
Daniel R Müller, Kathrin Altwegg, Jean-Jacques Berthelier, Michael R Combi, Johan De Keyser, Stephen A Fuselier, Philippe Garnier, Nora Hänni, Urs Mall, Martin Rubin, Susanne F Wampfler, Peter Wurz   +11 more
openaire   +5 more sources

Similarity criteria and coal-like material in coal and gas outburst physical simulation

International Journal of Coal Science & Technology, 2018
Coal and gas outburst is one of the main gas hazards in coal mines. However, due to the risks of the coal and gas outburst, the field test is difficult to complete. Therefore, an effective approach to studying the mechanism and development of outburst is
Bo Zhao, Guangcai Wen, Haitao Sun, Dongling Sun, Huiming Yang, Jie Cao, Linchao Dai, Bo Wang   +7 more
doaj   +1 more source

The influence of spin on jet power in neutron star X-ray binaries

, 2011
We investigate the role of the compact object in the production of jets from neutron star X-ray binaries. The goal is to quantify the effect of the neutron star spin, if any, in powering the jet.
Altamirano, Anderson, Blandford, Blandford, Bradshaw, Cai, Campbell, Casella, Chakrabarty, Corbel, Corbel, Coriat, Coriat, D. M. Russell, Falcke, Fender, Fender, Fender, Fender, Fender, Fender, Fender, Ferreira, Ferreira, Ferreira, Fomalont, Gaensler, Gallo, Giles, Greenhill, Hasinger, Henri, Hjellming, Hjellming, Homan, J. C. A. Miller-Jones, Jonker, Jonker, Kato, Krauss, Kubota, Königl, Körding, Körding, Körding, Lewis, Lin, Lin, Linares, Maitra, Merloni, Migliari, Migliari, Migliari, Migliari, Migliari, Migliari, Migliari, Miller-Jones, Miller-Jones, Moore, Penninx, Pooley, Psaltis, Reig, Remillard, Romanova, Rupen, Rupen, Rupen, Russell, Russell, Russell, Rutledge, S. Migliari, Sanna, Shu, Soleri, Soleri, Strohmayer, Tan, Torres, Tudose, Valentim, van der Klis, van Straaten, Wang, Watts   +87 more
core   +1 more source

Analysis of the Occurrence Mechanism for Coal and Gas Outburst Based on Multiple Discriminant Indices

Shock and Vibration, 2019
In order to reveal the occurrence mechanism of coal and gas outburst and optimize the measures to prevent the disaster, a coal mine in Henan Province was undertaken as the research background.
Hai Rong, Hongwei Zhang, Bing Liang, Weihua Song   +3 more
doaj   +1 more source