Results 71 to 80 of about 3,109 (220)

Prediction algorithm of coal and gas outburst based on IPSO-Powell optimized SVM

Gong-kuang zidonghua, 2020
In view of problems of coal and gas outburst prediction algorithm based on support vector machine(SVM) that prediction accuracy and reliability are not high, classification of nonlinear data is not considered when selecting kernel function, and ...
WU Yaqin, LI Huijun, XU Danni
doaj   +1 more source

Frozen Soil Hydrological Processes and Their Effects: A Review and Synthesis

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Frozen soils, including seasonally frozen ground and permafrost, are rapidly changing under a warming climate, with cascading effects on water, energy, and carbon cycles. We synthesize recent advances in the physics, observation, and modeling of frozen‐soil hydrology, emphasizing freeze–thaw dynamics, infiltration regimes and preferential flow,
Ying Zhao, Ce Zheng, Alexander Gelfan, Kunio Watanabe, Haojie Liu, Stephanie Wright, Xiaolong Wu, William Quinton, Yi Wang, Shuhua Yi, Yongyong Zhang, Yujie Shi, Wentao Jiao   +12 more
wiley   +1 more source

Conjecture about mechanism of butterfly-shape coal and gas outburst in excavation roadway

矿业科学学报, 2017
Referring to roadway butterfly shape rock burst mechanism and nonlinear dynamic system theory, a conjecture about butterfly-shape coal and gas outburst mechanism in excavation roadway has been made, In this conjecture, the mechanical essence of coal and ...
Ma Nianjie, Zhao Xidong, Zhao Zhiqiang, Guo Xiaofei, Liu Hongtao, Jia Housheng   +5 more
doaj  

Machine learning in coal and gas outburst prediction

, 2023
Peng Ji, Shi Shi-liang
openalex   +1 more source

Research on the Force Characteristics and Structural Optimization of Mine Antioutburst Door under the Influence of Coal and Gas Outburst Impact Airflow [PDF]

, 2021
Linchao Dai, Haitao Sun, Xusheng Zhao, Bo Wang, Jie Cao   +4 more
openalex   +1 more source

Simulation and control of coal and gas outburst induced by dynamic and static loads

Meikuang Anquan
In order to study the effects of multi factor coupling on micro-cracks, stress changes, outburst velocity, and outburst distance during coal and gas outbursts, including geostress, gas pressure, and dynamic disturbances, based on the particle method, we ...
Pu LI, Xinliang FANG, Zhiqi GUO, Huaiguang GUO, Peng WEN   +4 more
doaj   +1 more source

Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance

Advances in Civil Engineering, 2020
For the quantitative recognition and characterization of the flow characteristics of polymorphism coalbed gas in tectonic coal, experiments on pore morphology, pore diameter distribution, and methane adsorption law in outburst tectonic coal were carried ...
Jiazhuo Li, Penghui Guo, Wenhao Xie, Jiaqi Chu, Zhiqiang Yin, Anying Yuan, Ming Zhang, Zhenhua Jiao   +7 more
doaj   +1 more source

On Gas Seepage Regularity in Different Structural Bituminous Coal and Its Influence on Outburst-Coal Breaking

Applied Sciences
Coal and gas outburst remains a critical and persistent challenge in coal extraction, posing a profound threat for mine safety. The underlying mechanisms of such disaster, particularly the gas-driven coal fragmentation, continue to elude comprehensive ...
Jie Zheng, Linfan Chen, Gun Huang, Jun Wang, Weile Geng   +4 more
doaj   +1 more source

Reduction in gas-dynamic energy of outburst-hazardous coal bed under degassing [PDF]

, 2015
G. G. Karkashadze, E. V. Mazanik, SUEK-Kuzbass JSC (Leninsk-Kuznetsky, Russia), G. P. Ermak, Federal Environmental, Industrial and Nuclear Supervision Service of Russia—Rostekhnadzor (Moscow, Russia)   +4 more
openalex   +1 more source

Current Status of Research on the Coal and Gas Outburst Control Technology of Hydration and Anhydrous. [PDF]

ACS Omega, 2023
Zhang J, Wang L, Chen X.
europepmc   +1 more source