Results 51 to 60 of about 181,923 (295)
Gong-kuang zidonghua, 2023 The burial image features of a large amount of black coal rock thrown out during rock burst and coal and gas outburst are analyzed. The features include changes in the area of the monitoring area's color and corresponding graphics, changes in the number ...
SUN Jiping, CHENG Jijie, WANG Yunquan
doaj +1 more source
Geologic considerations in underground coal mining system design [PDF]
, 1981 Geologic characteristics of coal resources which may impact new extraction technologies are identified and described to aid system designers and planners in their task of designing advanced coal extraction systems for the central Appalachian region ...
Camilli, F. A. +3 more
core +2 more sources
Gong-kuang zidonghuaThe automatic perception and alarm method for coal mine rock burst and coal and gas outburst is an effective measure to timely detect accidents and emergency rescue, reduce casualties, avoid or reduce secondary accidents such as gas and coal dust ...
SUN Jiping, CHENG Jijie
doaj +1 more source
Coal mine rock burst and coal and gas outburst perception alarm method based on color image
Gong-kuang zidonghua, 2022 The paper analyzes the image characteristics of the thrown coal and rock when rock burst and coal and gas outburst occur. ① The coal and rock thrown out during rock burst and coal and gas outburst are mainly black, but the underground equipment of the ...
SUN Jiping, CHENG Jijie, WANG Yunquan
doaj +1 more source
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
core +1 more source
Meitan kexue jishuThe Ordos Basin is rich in coal-rock gas resources, and significant breakthroughs have been made in exploration and development in many blocks. However, the key controlling factors for the gas content of coal have not yet been clarified, which restricts ...
Ze DENG +7 more
doaj +1 more source
Potential Unconventional Gas Plays in Mature Basin of the Czech Republic [PDF]
, 2016 The presence of unconventional resources has been proven in deeper parts of mature oil and gas provinces and coal basins of the world. In this context, it is worth to focus also on the prospects of unconventional gas production from within hydrocarbon ...
Bujok, Petr +4 more
core
Selection of alternative central-station technologies for the Satellite Power System (SPS) comparative assessment [PDF]
, 1980 An important effort is the Satellite Power System (SPS) comparative Assessment is the selection and characterization of alternative technologies to be compared with the SPS concept.
Samsa, M.
core +2 more sources
Opposing consensus science through scholarly practices: The role of claims maintenance
Journal of the Association for Information Science and Technology, EarlyView.Abstract This study examines how three US‐based communities who oppose consensus science produce and disseminate scholarly‐like artifacts: pro‐life activists, Young Earth Creationists, and Anthropogenic Climate Crisis skeptics. Prior research shows that industry‐ or church‐backed advocacy campaigns often generate claims supported by these communities ...
Irene V. Pasquetto +3 more
wiley +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract The long‐term viability of Jatropha curcas as a biodiesel feedstock has been widely debated. Many early initiatives failed to deliver consistent economic returns despite promising environmental attributes. This study re‐evaluated J. curcas‐based systems within an integrated environmental–economic framework, focusing on their potential role in ...
Eduardo Sansão Sozinho Maurício +3 more
wiley +1 more source