Results 21 to 30 of about 36,405 (230)
Meitan kexue jishuThe rock-mixed ratio of top-coal caving mining significantly affects the coal quality and economic benefits. This ratio at longwall top-coal caving (LTCC) faces is jointly determined by multiple factors, including geological conditions, extracting and ...
Shen WANG +6 more
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Development of Modified Grouting Material and Its Application in Roadway Repair Engineering
Geofluids, 2021 It is very extraordinary for the success of coal mine roadway grouting with the following factors of high early strength, good fluidity, and convenient pumping, but the existing grouting materials make it difficult to achieve the above characteristics at
Yang Yu +5 more
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Scientific ReportsAbstract Given the complexity of the behavior of mining tailings dams built by the technique of hydraulic embankments and the recurring dam ruptures globally, especially in Brazil, ensuring enhanced safety through advanced disposal techniques becomes crucial.
Gabriel Gomes Silva +1 more
openaire +3 more sources
Meitan xuebaoThe main task of image-based intelligent control of caving door in longwall top coal caving face is to monitor the rock mixed ratio of coal flow by analyzing the image, and then determine the closing time of caving door.
Jiachen WANG +5 more
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Research progress on intelligent coal caving theory and technology
Gong-kuang zidonghuaThe longwall top-coal caving technology is an effective method for extracting thick and ultra-thick coal seams, and it has become a hallmark technology in China's coal mining industry.
WANG Jiachen +4 more
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Gradation and stress transmission mechanism of mixed backfill in the waste dump
矿业科学学报The structural stability of waste dumps is critically important to the safety of mine production. Taking the mixed tailings-waste rock dump of a specific mine as the research object, this study systematically analyzed the particle gradation ...
ZHANG Xiaodong +3 more
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IDENTIFICATION OF A ROBUST LICHEN INDEX FOR THE DECONVOLUTION OF LICHEN AND ROCK MIXTURES USING PATTERN SEARCH ALGORITHM (CASE STUDY: GREENLAND) [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Lichens are the dominant autotrophs of polar and subpolar ecosystems commonly encrust the rock outcrops. Spectral mixing of lichens and bare rock can shift diagnostic spectral features of materials of interest thus leading to misinterpretation and false
S. Salehi +3 more
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Study on chemical characteristics and evolution law of groundwater in Taigemiao Mining Area
Meitan kexue jishu, 2023 Taigemiao Mining Area is rich in coal resources, but water resources are scarce and the ecological environment is fragile, and the use of hydrogeochemical methods to carry out research on the chemical characteristics and evolution law of groundwater in ...
Haixiang LI +6 more
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Applied SciencesThis study systematically analyzes the influence of the charge length-to-diameter ratio and stemming length on the radius and volume of blasting craters in coal and rock blasting crater tests to effectively address the challenge of achieving coal–rock ...
Anjun Jiang +5 more
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Molecular Oncology, EarlyView.Combining osimertinib with the STING agonist ADU‐S100 activates innate and adaptive immunity to overcome the non‐inflamed microenvironment of Egfr‐mutant lung cancer. This combination increases NK and CD8+ T‐cell infiltration, associated with activation of the STING‐IRF3 pathway and local immunogenic cell death.
Jun Nishimura +19 more
wiley +1 more source