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8/1/2001 - Peer reviewed journal articlesThe CMRR quantifies defects in the rock mass and compiles a strength value used for engineering design. The CMRR has been applied to a number of ground stability problems. The CMRR procedure and some of these applications are described in this paper.
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10/1/2000 - Information CircularsThe proceedings provide information on several new technologies including guidelines for roof bolt length, pattern, and capacity; a new design method for longwall tailgate supports; and a technique for measuring loads developed within cable bolts.
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3/1/1997 - Information CircularsThis proceedings volume contains papers presented at technology transfer seminars sponsored by the National Institute for Occupational Safety and Health (NIOSH) on New Technology for Ground Control in Retreat Mining.
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1/1/1994 - Information CircularsThis paper describes the history and technology of methane drainage in the US and other countries.
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3/1/1975 - Peer reviewed journal articlesThe theoretical study of UHF radio communication in coal mines, with particular reference to the rate of loss of signal strength along a tunnel, and from one tunnel to another around a corner is the concern of this paper. This work was part of an invest...
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8/16/2021 - Information CircularsRead about the latest best practices for dust control in coal mining.
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2/18/2021 - Research areasMethane is an odorless, tasteless, colorless, lighter-than-air gas formed by the decomposition of organic and other carbonaceous materials. From 5% to 15% can form an explosive mixture which, if ignited, can have catastrophic consequences.
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1/15/2021 - Research areasRock Dusting Topic Page
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Application of a Convolutional Neural Network for Seismic Phase Picking of Mining-induced Seismicity1/1/2021 - Peer reviewed journal articlesA comparison of a convolutional neural network originally trained to pick arrival times on the Southern California Seismic Network to that of human analysts on coal-mine-related mining-induced seismicity.
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12/1/2020 - Peer reviewed journal articlesAn article discussing the impact of coal workers’ pneumoconiosis, commonly known as black lung, and a general methodology for controlling respirable dust in underground coal mines.
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Content source: National Institute for Occupational Safety and Health, Mining Program