Results 11 to 20 of about 324,854 (212)
Advances in Materials Science and Engineering, 2022 The coal mining process is often accompanied by periodic disturbance of the surrounding rock mass around the coal mining face. Therefore, it is of great theoretical and engineering value to investigate the damage pattern of bituminous coal under cyclic ...
Shuang Gong +7 more
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Rock and Soil Mechanics, 2021 In order to explore the impact of moisture on the mechanical properties of coal, the triaxial compression tests of raw coal with different moisture contents are carried out by using the triaxial servo-controlled seepage equipment for thermal-hydro ...
LI Bo-bo +5 more
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Estimation of Population Size of Dentaria Enneaphyllos in the Vicinity of the Bełchatów Brown Coal Mine and the Attempt of its Metaplantation [PDF]
, 2011 The impact of anthropopressure on the flora in the vicinity of the Bełchatów Brown Coal Mine in Central Poland has been substantially strong. Consequently, certain changes in habitat conditions have been observed, leading to a decline in particular ...
Koczywąs, Ewelina +2 more
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Coal Mining Surface Damage Characteristics and Restoration Technology
Sustainability, 2022 With the continuous improvement of mining technology and equipment in China’s coal mines, the number of working faces with high-intensity mining is increasing, and the area of surface damage continues to increase compared with previous years. In order to ensure safe production and protect the overall environment of the mining area, the damage ...
Jiachi Ren +5 more
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Geofluids, 2021 The purpose of this study is to study the damage and fracturing effects of high-voltage discharge on coal-rock mass under the action of hydrostatic pressure. Based on the traditional damage evolution model and the change of the effective bearing area and
Xiankai Bao +5 more
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Damage Evolution of Coal with Inclusions Under Triaxial Compression [PDF]
Rock Mechanics and Rock Engineering, 2021 AbstractAlong with the advance of the working face, coal experiences different loading stages. Laboratory tests and numerical simulations of fracture and damage evolution aim to better understand the structural stability of coal layers. Three-dimensional lab tests are performed and coal samples are reconstructed using X-ray computer tomography (CT ...
Zhao, Yufeng +5 more
openaire +3 more sources
Why Tax Energy? Towards a More Rational Energy Policy [PDF]
, 2006 The same fuels are taxed at widely different rates in different countries while different fuels are taxed at widely different rates within and across countries. Coal, oil and gas are all used to generate electricity, but are subject to very different tax
Newbery, David
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Comparative life cycle assessment of current and future electricity generation systems in the Czech Republic and Poland [PDF]
, 2018 Purpose The purpose of the study was to perform a comparative life cycle assessment of current and future electricity generation systems in the Czech Republic and Poland.
Blaut, Agata +4 more
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Meitan kexue jishu, 2023 The early warning of coal spontaneous combustion is difficult to solve the perception of fire information. The acoustic emission (AE) signal generated by thermal damage and destruction on coal rock can perceive the temperature, and then issue a warning ...
Biao KONG +7 more
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Assessment of Coating Performance on Waterwalls and Superheaters in a Pulverised Fuel-Fired Power Station [PDF]
, 2017 Protective coatings offer one route to increase the lives of heat exchangers in pulverised fuel power plants. A range of candidate coatings have been exposed on the waterwall and superheaters of a 500 MWe UK power station unit for periods of up to ~4 ...
Davis, Colin +3 more
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