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Annual report.

open access: yes
Vols. for 1913-1940 called 1st-28th.Mode of access: Internet.Issued by the State Inspector of Coal Mines, 1913-39; by the Coal Mine Inspection Dept., 1940-59.Continued by: Colorado. Division of Mines. Coal.Continues: Colorado.
Colorado. Coal Mine Inspection Division. Coal.   +2 more
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Intelligent long wall top coal caving mining

open access: yes
Longwall Top Coal Caving (LTCC) mining technology is an effective method for mining thick and extra thick coal seams in China.Since its application in China in 1982, significant progress has been made, forming a variety of mining modes such as LTCC with large mining height, LTCC in extra thick coal seams and LTCC in steeply inclined thick coal seams ...
Wang, Jiachen, Li, Yang
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Design of Intelligent Setting Device Used in Coal Mine

open access: yesGong-kuang zidonghua, 2011
In view of problems that intelligent sensors in safety monitoring and control system of coal mine need make field setting and periodic calibration for parameters, the paper proposed a design scheme of intelligent setting device taking P89LPC936 single-chip microcomputer as core.
XU Le-nian, LI Wen-jing, CAO Jing-long
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Lehigh Coal and Navigation Company Records - Item 2596: Draft of the Great Coal Mine Near Mauch Chunk

open access: yes
This schematic shows a draft of the great Coal-Mine near Mauch Chunk exhibiting the various branches of the Rail-road leading from it and the situation of the workings on the 18 of July 1827.

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Intelligent fault diagnosis method for coal mine equipment based on cloud-edge collaboration

open access: yes
With the acceleration of the intelligent process of coal mine, the accuracy and real-time performance of fault diagnosis of coal mine equipment are more and more critical, which plays an important role in ensuring production efficiency and the safety of ...
Yanfu LI, Chengjie SU
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Causes and control of coal mine bumps [PDF]

open access: yes
"Coal mine bumps involve the violent, rapid failure of coal and rock around a mine excavation. Deep coal mines with strong roof and floor rocks and high-stress conditions frequently experience face and rib bumps.

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