Results 61 to 70 of about 618,659 (216)
, 2022 Mine report no. 955.Includes illustration.Typescript (carbon copy)
Marks, John H. (John Henry)
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Gong-kuang zidonghua, 2010 In view of the problem that wireless sensor network ca't make remote transmission because of complex underground situation,the paper proposed a design scheme of mine environmental detection system based on ZigBee wireless sensor network and data radio ...
JIANG Jie, CHEN Shu-shu
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, 2022 Mine report no. 806.Typescript (carbon copy).The mine was four and a half miles from Idaho Springs, Clear Creek County, Colorado.
McClelland, George E.
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Research of Action Range and Mechanism of Coal-gun Phenomenon in Drifting Process
Gong-kuang zidonghua, 2010 In order to explain action range and mechanism of coal-gun phenomenon,numerical simulation research was maken for deforming and destroyed process and acoustic emission phenomenon of surrounding rock in drifting process of a coal mine by use of RFPA2D ...
WANG Jun-hui~, LI Bao-fu~, ZHANG Tao~
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, 2022 Mine report no. 865.Includes map.Typescript (carbon copy).Report on the Robert Emmett Mine, Gilpin County, Colorado, second copy includes an addenda added Aug.
Welles, A. M. (Alonzo Merritt)
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Design of an On-line Detecting System for Dielectric Loss of Mine-used High-voltage Cable
Gong-kuang zidonghua, 2010 In order to solve problems of consuming too much time and resource and unstable precision caused by environment of existing off-line detecting method for dielectric loss of high-voltage cable of coal mine underground,a micro-current sensor was designed ...
DING Wei-min +2 more
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Waterminer - Mine water management [PDF]
, 2011 In the Australian and New Zealand gold mining industry the use of water is an integral part of the entire mining process, from the initial extraction of the ore to its final processing. The way in which water is managed on site effects the running costs,
Tobin, Brent
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, 2022 Mine report no. 681.Facts regarding the Bonney mine -- Mr. C. Colcock Jones' report delivered at a meeting of the stockholders of the Pacific Copper Company in Los Angeles, July 24, 1930, in conjunction with report by Mr.
Royer, Frank W.
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Frame Repacked Method of Wireless Transmission of Ethernet Audio and Video Streaming
Gong-kuang zidonghua, 2010 In view of the serious problem of packet loss existed in transmitting audio and video streaming by use of wireless sensor network technology in coal mine underground,an Ethernet data unpacked/packed method based on FPGA was put forward,namely,an Ethernet
LIU Yu-ping
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2019 The relevance of the research is caused by the need to conduct safely mining in quarries with a depth of over 360 m. Increasing production volumes is possible with significant deepening; to reduce the amount of overburden it is necessary to twist the ...
Natalya A. Nemova, Tatyana A. Belsh
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