Results 61 to 70 of about 46,432 (331)

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

James van Allen and his namesake NASA mission [PDF]

, 2013
In many ways, James A. Van Allen defined and “invented” modern space research. His example showed the way for government-university partners to pursue basic research that also served important national and international goals.
Baker, D. N., Hoxie, V. C., Jaynes, A., Kale, A., Kanekal, S. G., Li, X., Reeves, Geoffrey, Spence, Harlan E.   +7 more
core   +2 more sources

Modeling the Dynamic Variability of Sub‐Relativistic Outer Radiation Belt Electron Fluxes Using Machine Learning

Space Weather, 2022
We present a set of neural network models that reproduce the dynamics of electron fluxes in the range of 50 keV ∼1 MeV in the outer radiation belt.
Donglai Ma, Xiangning Chu, Jacob Bortnik, Seth G. Claudepierre, W. Kent Tobiska, Alfredo Cruz, S. Dave Bouwer, Joseph F. Fennell, J. Bernard Blake   +8 more
doaj   +1 more source

Facet‐Tailored Co3O4 as Electronic Regulator and Stabilizing Support for Ru Nanocluster: Toward Efficient Alkaline HER

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Facet‐engineered Ru@Co3O4 nanosheets precisely anchor Ru nanoclusters on the Co3O4 (111) facets, optimizing the hydrogen‐bond network of interfacial water and downshifting the Ru d‐band center. The Ru@Co3O4 NSs show outstanding HER activity and long‐term durability in AEMWE devices. This work demonstrates a crystal facet engineering strategy to develop
Jia Wang, De Wang, Zhenyu He, Mengyu Yan, Yinyu Xiang, Huipeng Li, Lina Xu, Junsheng Li   +7 more
wiley   +1 more source

Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission [PDF]

, 2013
The HOPE mass spectrometer of the Radiation Belt Storm Probes (RBSP) mission (renamed the Van Allen Probes) is designed to measure the in situ plasma ion and electron fluxes over 4π sr at each RBSP spacecraft within the terrestrial radiation belts.
Baldonado, J. R., Funsten, H. O., Guthrie, A. A., Harper, R. W., Henderson, K. C., Kihara, K. H., Lake, J. E., Larsen, B. A., MacDonald, E. A., Puckett, A. D., Skoug, R. M., Spence, Harlan E., Vigil, V. J.   +12 more
core   +1 more source

Observations of MeV electrons in Jupiter's innermost radiation belts and polar regions by the Juno radiation monitoring investigation: Perijoves 1 and 3 [PDF]

, 2017
Juno's "Perijove 1" (27 August 2016) and "Perijove 3" (11 December 2016) flybys through the innermost region of Jupiter's magnetosphere (radial distances J at closest approach) provided the first in situ look at this region's radiation environment.
Adriani, Alberto Adriani, Alessandro Mura, Allison, Andrea Cicchetti, Becker, Bolton, Bolton, Carr, Clifford Lee, Connerney, Connerney, Connerney, Daniel Santos-Costa, Divine, Emily A. Manor-Chapman, Fillius, Fischer, Garrett, Garrett, Garrett, Heidi N. Becker, Ingrid J. Daubar, James W. Alexander, John E. P. Connerney, John L. Jørgensen, Julia Sushkova, Mathias Benn, Mauk, Mauk, Raffaella Noschese, Richard M. Thorne, Santos-Costa, Santos-Costa, Scott J. Bolton, Steven M. Levin, Troelz Denver, Virgil Adumitroaie   +37 more
core   +3 more sources

Low-density plasma as a key catalyst for electron acceleration in the Van Allen radiation belts

Communications Physics
The near-Earth space environment is populated by the most energetic electrons with velocities very close to the speed of light, reaching ultra-relativistic energies.
Yuri Y. Shprits, Bernhard Haas, Dedong Wang   +2 more
doaj   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

Geological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao, Wen Chen, Jingbo Sun, Ze Shen, Jie Zhang   +4 more
wiley   +1 more source

Automatic Identification of Past Radiation Belts Electron Enhancement Events Using a Ground‐Based Parameter

Earth and Space Science
We propose a new method for automatically identifying radiation belt electron enhancement events using Ca, a ground‐based 1D surrogate index for the global dynamics of the electron radiation belts.
Guillerme Bernoux, Gautier Nguyen, Angélica Sicard, Vincent Maget   +3 more
doaj   +1 more source

Satellite observations of lightning-induced hard X-ray flux enhancements in the conjugate region [PDF]

Annales Geophysicae, 2006
Preliminary examination of October-December 2002 SONG (SOlar Neutron and Gamma rays) data aboard the Russian CORONAS-F (Complex Orbital Near-Earth Observations of the Activity of the Sun) low-altitude satellite has revealed many X-ray enhanced ...
R. Bučík, K. Kudela, S. N. Kuznetsov
doaj   +1 more source