Results 31 to 40 of about 27,132 (199)

Variation Law of Hybrid Explosion Characteristic Parameters of Gas and Coal Dust Coupled with Multiple Factors. [PDF]

open access: yesACS Omega
This study aims at extensively investigating the explosion characteristics of a hybrid mixture of gas and coal dust. Accordingly, the standard 20 L spherical explosion system was applied to measure parameters such as the lower explosion limit, maximum explosion pressure, and index of the hybrid mixture of different concentrations of gas and coal dust ...
Peng L, Ji W, Zhang Y, Tian R.
europepmc   +4 more sources

Sound identification method of coal mine gas and coal dust explosion based on wavelet scattering transform

open access: yesMeitan kexue jishu
To solve the problems of high false alarm rate and leakage rate of coal mine gas and coal dust explosion disaster alarm methods, and improve the accuracy of coal mine gas and coal dust explosion perception, sound identification method of coal mine gas ...
Xingchen YU, Xiaowei LI
doaj   +2 more sources

Study on the characteristics and mechanism of inert powder inhibition of gas/coal dust compound explosion

open access: yesMeitan kexue jishu
Gas/coal dust composite explosion is a complex process that combines homogeneous and heterogeneous combustion. The combustion main control mechanism changes dynamically and the explosion mechanism is more complex, resulting in higher explosion ...
Wentao JI   +5 more
doaj   +2 more sources

Fault tree analysis and prevention strategies for gas explosion in underground coal mines of Pakistan [PDF]

open access: yes, 2019
Purpose. Gas explosion in the underground coal mines of Pakistan is the main source of coal miners’ mortalities. The purpose of this article is to analyze the main causes of gas explosion in the underground coal mines of Pakistan. Methods.
Ali, M   +7 more
core   +2 more sources

Experimental study on gas and coal dust explosive overpressure and flame dynamic characteristics in an engineering-level test roadway

open access: yesFrontiers in Earth Science, 2023
The continuous development of coal science and technology has made gas and coal dust explosion disasters an important factor that restricts efficient and intelligent coal mining, which seriously threatens the safe production process of coal mines.
Yihui Niu   +6 more
doaj   +1 more source

Influence of Molasses on the Explosion and Decomposition Properties of the Coal Dust Deposited in Underground Mines

open access: yesEnergies, 2023
Coal dust endangers the health and safety of workers in underground coal mines. Therefore, developing coal dust suppressants with dust prevention and explosion-proof properties is critical.
Jianguo Liu   +9 more
doaj   +1 more source

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

Study on the Characteristics and Influence Factor of Methane and Coal Dust Gas/Solid Two-Phase Mixture Explosions

open access: yesFire, 2023
This research aimed to the characteristics and influence factor of methane and coal dust gas/solid two-phase mixture explosions by experiment. Through comparative analysis of flame propagation characteristics, pressure, flame temperature and products ...
Yue Wang   +3 more
doaj   +1 more source

Investigation on the characteristics of single-phase gas explosion and gas-coal dust coupling explosion in bifurcated tubes

open access: yesThermal Science, 2021
In order to deeply understand the overpressure propagation characteristics of explosion shock wave of single-phase gas explosion and gas-coal dust coupling explosion in bifurcated tube, this paper makes a comprehensive and in-depth study on the change and distribution law of explosion shock wave overpressure of single-phase gas explosion and gas-coal ...
Guoxun Jing, Shaoshuai Guo, Yulou Wu
openaire   +2 more sources

Research on ultraviolet image perception method of mine electric spark and thermal power disaster

open access: yesGong-kuang zidonghua, 2022
The electric leakage of underground cables and electrical equipment in coal mine, electromotive force discharge induced by high-power radio transmission on metal support and electromechanical equipment metal will generate electric spark, which will then ...
SUN Jiping   +3 more
doaj   +1 more source

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