Results 41 to 50 of about 324,854 (212)
Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio
Gong-kuang zidonghua, 2018 In order to quantitatively study evolution law between temperater parameter of infrared radiation and coal-rock damage law under uniaxial compression, temperature data of infrared radiation during coal-rock failure process was collected and analyzed.
CHENG Fuqi +5 more
doaj +1 more source
Mesomechanics coal experiment and an elastic-brittle damage model based on texture features
International Journal of Mining Science and Technology, 2018 To accurately describe damage within coal, digital image processing technology was used to determine texture parameters and obtain quantitative information related to coal meso-cracks.
Chuanmeng Sun, Shugang Cao, Yong Li
doaj +1 more source
An effective palynological preparation procedure using hydrogen peroxide [PDF]
, 2007 Most pre-Quaternary palynology samples are currently prepared by demineralization of the sediment/sedimentary rock matrix using hydrochloric and hydrofluoric acids (HCl and HF respectively).
Kyffin-Hughes, Jane E. +2 more
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DETECTING CLASSIFIER-COAL MILL DAMAGE USING A SIGNAL VIBRATION ANALYSIS
SINERGI, 2019 A classifier plays a crucial role in the cement industry. It is in charge of separating coal that has been smoothened out and is ready to be burned although the coal is still rough after going through the grinding process. It takes a long time to burn coal that is not perfectly processed with a classifier. Therefore, it will reduce the amount of cement
Dedik Romahadi +2 more
openaire +3 more sources
Applied SciencesPre-grouting is an effective method to reinforce fractured coal in front of working faces. The mining of adjacent working faces after grouting can cause early damage to the grouting cemented coal. To explore the mechanical properties of grouting cemented
Aibing Jin +4 more
doaj +1 more source
Advances in Materials Science and Engineering, 2023 This article conducted acoustic emission tests of natural coal, natural frozen coal, and saturated frozen coal to explore the damage characteristics of frozen coal and in view of the frozen coal damage early warning problems and explored the strength ...
Xiang Sun, Bin Liu, Qi Dong, Feng Shi
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Productive flows control in coal mines under the condition of diversification of production [PDF]
, 2018 The objective of the work consists in methodical bases of concept development for control by productive flows in coal mines with the use of cost-effective mechanisms.
Demchenko, Yurii +11 more
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Assessment of mining activities with respect to the environmental protection [PDF]
, 2017 This paper deals with the impact of mining on the environment. Coal mining is still among the most widespread and most intense mining activity, which disturbs the landscape around us bringing regional environmental, economic and aesthetic problems ...
Dirner, Vojtech +3 more
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Coal mining areas: environmental issues and solutions (on the example of Kuzbass) [PDF]
, 2015 Rozdział z: Functioning of the Local Production Systems in Central and Eastern European Countries and Siberia. Case Studies and Comparative Studies, ed. Mariusz E.
Tsvelodub, Yuliya
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A Method of Effective Quarry Water Purifying Using Artificial Filtering Arrays [PDF]
, 2017 The development of open pit mining in the large coal basins of Russia and other countries increases their negative impact on the environment. Along with the damage of land and air pollution by dust and combustion gases of blasting, coal pits have a ...
Garina, E. +5 more
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