Results 61 to 70 of about 181,923 (295)
Analysis of gas migration patterns in fractured coal rocks under actual mining conditions
Thermal Science, 2017 Fracture fields in coal rocks are the main channels for gas seepage, migration, and extraction. The development, evolution, and spatial distribution of fractures in coal rocks directly affect the permeability of the coal rock as well as gas migration and flow. In this work, the Ji-15-14120 mining face at the No.
Mingzhong Gao +4 more
openaire +2 more sources
Структурно-тектонічні особливості формування покладів газу у вуглепородних масивах Донбасу [PDF]
, 2015 Сучасні структурно-тектонічні особливості поширення газу у вуглепородних масивах Донбасу формувалися під впливом тектонічних процесів, які проявлялися протягом чотирьох етапів тектоногенезу: від пермі до неогену.
Вергельська, Н. В.
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Business Strategy and the Environment, EarlyView.ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang +2 more
wiley +1 more source
Carbon Energy, EarlyView.Oxidative fast pyrolysis of biomass enables autothermal production of value‐added products. ABSTRACT Oxidative fast pyrolysis can potentially overcome the heat‐supply bottleneck of conventional fast pyrolysis by enabling autothermal operation while also tailoring product quality through controlled oxygen addition.
Bin Li +15 more
wiley +1 more source
Deep Coal Rock Gas Reservoir Inversion Prediction Method Based on Multi Quality Parameter Coupling
Cejing jishuAs a new type of unconventional natural gas resources, deep coal rock gas has become a hot spot for exploration in major oil and gas fields in China. However, it is different from conventional shallow coalbed methane. Adsorbed gas and free gas coexist in
MAO Chenfei +7 more
doaj +1 more source
Research on image recognition methods for coal rock fractures
Gong-kuang zidonghua, 2023 Coal rock fractures are closely related to gas migration and affect the stability of coal rock. Studying the complex fracture system in coal rock is of great significance for roadway support and gas extraction.
HAO Tianxuan, XU Xinge, ZHAO Lizhen
doaj +1 more source
Chemie Ingenieur Technik, EarlyView.All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau +2 more
wiley +1 more source
Experimental Research on Permeability of Coal and Rock Mass considering Postpeak Failure
Geofluids, 2021 In most mining areas of China, coal seams are characterized by low gas pressure, poor permeability, and high gas adsorption capacity, all of which have brought considerable difficulties to coal seam mining and coalbed methane (CBM) extraction.
Zhiguo Cao +3 more
doaj +1 more source
Study on failure approach index of gassy coal rock and 3D reconstruction
Meikuang Anquan, 2022 In order to better reveal and characterize the damage degrees and damage space forms of gassy coal rock in construction, the expression of failure approach index of gassy coal rock is deduced based on the theory of failure approach index of surrounding ...
YUAN Haiping, WANG Wenhui, YE Chenxu
doaj +1 more source
English for Study and Work: Coursebook in 4 books. Book 2 Obtaining and Processing Information for Specific Purposes [PDF]
, 2015 Подано всі види діяльності студентів з вивчення англійської мови, спрямовані на розвиток мовної поведінки, необхідної для ефективного спілкування в академічному та професійному середовищах.
Зуенок, И. И. +15 more
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