Results 21 to 30 of about 1,470,279 (358)

Determination of Hazardous Zone of Coal Spontaneous Combustion in Ultra-Long Working Face Based on the Gob Porosity Evolution and Flow Field Distribution

Applied Sciences, 2023
Coal fire remains one of the main hazards of underground work. Spontaneous coal fires cause serious casualties and property losses. At present, most of the studies on coal spontaneous combustion have been conducted on working faces shorter than 200 m ...
Shuliang Xie, Gang Wang, Enmao Wang, Qiming Huang, Mingze Xia   +4 more
doaj   +1 more source

The Significance of Hydrophobicity for the Water Retention Properties of Sand and Coal

Applied Sciences, 2021
For mine wastes such as coal tailings, management of these materials requires complex geotechnical engineering that uses many soil properties, such as water retention.
Andrew Vidler, Olivier Buzzi, Stephen Fityus   +2 more
doaj   +1 more source

Response characteristics of mining-induced overburden strata under different degrees of regional fracturing on the roof

Meitan xuebao
To obtain the activity patterns and response characteristics of the overburden strata under different fracturing degrees of the roof, and thereby provide a reference for preventing and controlling roof-dominated rock burst through regional fracturing ...
Jianhong WU, Junfeng PAN, Meihua FENG, Chuang LU, Jiaming GAO, Yaodong YAN, Hongyuan MA   +6 more
doaj   +1 more source

Water absorption and salt attack resistance of coal ash brick made of different percentage of foam content [PDF]

, 2014
Coal ash which constitute of fly ash and bottom ash were proved to be used as main component in brick production. However, published work on the coal ash brick with addition of foam in order to produce lightweight brick is still lacking. This thesis
Ismail, Sushilawati
core   +1 more source

Characteristics and mechanism of strong dynamic load mine pressure in large mining height full-mechanized caving face with multiple thick and hard roof

Meitan xuebao
In view of the problems of strong mine pressure such as rapid shrinkage of hydraulic support column and easy support crushing in working face under the fully mechanized caving face with large mining height in multi-layer thick and hard roof of extra ...
Zhen ZHANG, Zhizeng HUANG, GANG XU, Xiaogang LIU, Qianjin LIU, Tielin ZHAO, Xingyu LIN   +6 more
doaj   +1 more source

The integrated development system of breakage faces power supply, training and knowledge assessment of staff of coal mines electromechanical services

EAI Endorsed Transactions on Energy Web, 2017
The principles of the Internet-technologies use for ensuring operational safety of power supply of breakage faces of coal mines with a problems solution of design, training and employees' knowledge assessment of electromechanical services are considered.
G.I. Parshina, B.N. Feshin, W.A. Lucas
doaj   +1 more source

Innovative Apparatus for Testing Filtration, Sorption and CO₂/CH₄ Exchange Sorption Processes Under Isobaric Conditions on Sorbent Subjected to Confining Pressure in Terms of Laboratory Tests of CO₂-ECBM Technology

Sensors, 2020
In recent years, the interest in the sorption properties of coal in conditions corresponding to in situ has increased due to the continuous development of research on CO2-ECBM (Enhanced Coal Bed Methane recovery) technology.
Mateusz Kudasik, Norbert Skoczylas, Anna Pajdak   +2 more
doaj   +1 more source

Coal Miners’ Chests [PDF]

Journal of the Royal Society of Medicine, 2004
The Government is currently urging coal miners or their relatives to claim compensation if the miner ever had coughing, clearing their chest or throats, breathing problems or any chest problems whatsoever. This applies whether the miner is alive or had such difficulties and is now dead.
openaire   +3 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Experimental study on mechanical and fracture-seepage characteristics of sandstone under hydro-mechanical coupling

Meikuang Anquan
In order to explore the fluid-solid coupling feedback characteristics of rock under the action of hydro-mechanical coupling, the triaxial and pore water pressure loading tests of saturated sandstone were carried out by using the rock mechanics ...
Jiawei LI, Yujun ZHANG, Jie XIAO, Youwei LI, Zhiwei ZHANG   +4 more
doaj   +1 more source