Results 11 to 20 of about 1,213,077 (307)

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

open access: yesRUDN 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

open access: yesApplied 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   +4 more
doaj   +1 more source

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

open access: yesApplied 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   +2 more
doaj   +1 more source

Toward a global coal mining moratorium? A comparative analysis of coal mining policies in the USA, China, India and Australia [PDF]

open access: yes, 2018
To stop global warming at well below 2° C, the bulk of the world’s fossil fuel reserves will have to be left in the ground. Coal is the fossil fuel with the greatest proportion that cannot be used, and various advocacy groups are campaigning for a ban on
Blondeel, Mathieu, Van de Graaf, Thijs
core   +1 more source

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

open access: yesEAI 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

open access: yesSensors, 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   +2 more
doaj   +1 more source

Destabilization of the hard coal microstructure by a weak electric field [PDF]

open access: yes, 2018
This study aims to analyse physical and chemical changes in hard coal samples under the influence of low-intensity electric fields in comparison to the fragments of ejected coal, as well as the coal samples selected from the zones ...
Kamchatnyi, Oleksii   +3 more
core   +1 more source

Underground Coal Gasification Efficiency in Areas of High Faulting Frequency [PDF]

open access: yes, 2017
The purpose of this paper is substantiating of efficiency during application of borehole underground coal gasification technology based on target coal seam geology.
Lozynskyi, Vasyl
core   +1 more source

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

open access: yesMeitan 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   +6 more
doaj   +1 more source

Selected Aspects of Combustion Optimization of Coal in Power Plants

open access: yesEnergies, 2020
Growing ecological standards force the implementation of solutions that will contribute to reducing greenhouse gas (GHG) emissions to the atmosphere. This is particularly important in Poland, whose energy system is almost 80% based on coal.
Maciej Dzikuć   +5 more
doaj   +1 more source

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