Results 21 to 30 of about 1,510,051 (362)
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
Toward a global coal mining moratorium? A comparative analysis of coal mining policies in the USA, China, India and Australia [PDF]
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
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
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
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Destabilization of the hard coal microstructure by a weak electric field [PDF]
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
Porosity of Coals and Coal Products [PDF]
Different experimental approaches for characterizing porosity of coals and coal products have been described. Results of densities, surface areas and pore volume distributions for coals of different rank and the manner in which they change upon heat treatment have been discussed.
O.P. Mahajan, P.L. Walker
openaire +3 more sources
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
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
The following operations of Consolidation Coal will work the afternoon shift: the Arkwright Mine, the Osage Mine, the Humphrey Mine, the Pursglove Mine, the Blacksville Number 2 Mine. The message came crackling over the radio in Morgantown. It was broadcast every day, as routine as the notification of school closings after a snowstorm.
openaire +2 more sources
Selected Aspects of Combustion Optimization of Coal in Power Plants
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

