Results 1 to 10 of about 1,795,114 (414)
Nature, 1902 As England has taught the world how to use coal, she ought to think of teaching the world how to use coal without waste. Coal is so plentiful, so cheap; it is so much to the interest of many people that the waste should go on, and the general public, who alone can apply a remedy, are so ignorant of natural science that when, every few years, I draw ...
Walter Rosenhain
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Geofluids, 2022 Flow characteristics and phase distribution of concentrated brine storage in mining area have been core factors linking to the leakage risk assessment and ecological evaluation.
Xiaolong Hu +9 more
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Geofluids, 2022 The discharge of mine water from underground coal mines in arid areas is leading to extensive water loss and secondary pollution. To eliminate the water loss and environmental pollution, sealing the concentrated brine after the mine water treatment in ...
Xiaolong Hu +7 more
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Shock and Vibration, 2023 Xinzhuang Coal Mine is a typical kilometer-deep rockburst mine in the Ningzheng mining area of China Huaneng Group, which is still in the capital construction period.
Ma Xingen +8 more
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Influence of stress factors of firewalking on heart rate frequency and variability of karate sportsmen [PDF]
Pedagogìka, Psihologìâ ta Mediko-bìologìčnì Problemi Fìzičnogo Vihovannâ ì Sportu, 2012 Influence of passing is studied on burning hot coal on the indexes of frequency of heart-throbs and variability of cardiac rhythm of sportsmen. In procedure of passing on coal took part 4 sportsmen (karate) of high qualification aged 20-25 years.
Dykij B.V. +3 more
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Shock and Vibration, 2020 Numerical simulations have often been used in close-distance coal seam studies. However, numerical simulations can contain certain subjective and objective limitations, such as high randomness and excessively simplified models.
Zhuoyue Sun +5 more
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Porosity of coals and coal products [PDF]
, 1978 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.
Mahajan, O. P., Walker, Jr., P. L.
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ESTIMATION OF MOISTURE CONTENT IN COAL IN COAL MILLS [PDF]
IFAC Proceedings Volumes, 2006 For coal-fired power plants information of the moisture content in the coal is important to determine and control the dynamical behavior of the power plants. E.g. a high moisture content in the coal can result in a decreased maximum load gradient of the plant. In this paper a method for estimating the moisture content of the coal is proposed based on a
Odgaard, Peter Fogh, Mataji, B.
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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 +4 more
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Life Cycle Modelling of the Impact of Coal Quality on Emissions from Energy Generation
Energies, 2020 This paper presents a model combining the LCA (Life Cycle Assessment) of fossil fuel extraction with its quality parameters and related CO2, SO2 and dust emissions at the stage of the combustion process. The model which was developed aims to identify the
Lukasz Lelek, Joanna Kulczycka
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