Results 11 to 20 of about 405,222 (313)

Comparative Analysis of Pore Structure and Adsorption Characteristics of Coal and Shale

Meikuang Anquan, 2020
In this paper, the pore structures of coal and shale were analyzed by the methods of high pressure mercury injection, low pressure N2 and CO2 adsorption.
WU Tengfei, DU Xidong, LI Qiqi
doaj   +1 more source

Study on extraction phenol from coal tar with high flux centrifugal extractor

International Journal of Coal Science & Technology, 2017
Solvent extraction phenol from coal tar were carried out with novel composite YH-3 as extraction agent, and the high flux centrifugal extractor was used as extraction device.
Yuan Zhao, Xuefeng Mao, Weilin Li, Xiaohui Gu, Guangyao Wang   +4 more
doaj   +1 more source

Global environmental agenda: Developments ahead, sustainable energy-ecological dimensions for Russia, Japan, and Southeast Asia

RUDN Journal of Economics, 2022
The study explores the contemporary situation within the global environmental agenda. This topic is vital to humanity and significant in sustainable development for years ahead.
Yana V. Mishchenko
doaj   +1 more source

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
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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

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

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

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

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