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Results 21 - 30 of 32
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1/1/2002 - Peer reviewed journal articlesFull-scale laboratory tests provide information to longwall operators that would assist them in selecting control parameters to reduce dust levels for mine-specific conditions.
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2/1/2001 - Conference papersPast studies with blowing face ventilation systems have shown that using a machine-mounted scrubber and water sprays can reduced methane levels at the face.
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4/1/1999 - Peer reviewed journal articlesAn evaluation of strategies for monitoring methane levels during roof bolting in an extended cut entry.
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11/1/1997 - Technology NewsA method is described for allowing operators to predict methane emissions from panels with increased face width.
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2/1/1997 - Conference papersResearch was conducted to investigate how ventilation of a mining face is affected when scrubber flow is greater or less than intake flow.
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3/1/1994 - Technology NewsThe USBM's current approach to air splitting consists of using a polyester mesh partition to overcome the visibility problems of a solid barrier.
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1/1/1992 - Reports of InvestigationsThis report investigates that application of jet fans to ventilate cuts that extend beyond 40 feet. The results of tests involving a jet fan in a 90 foot entry, its benefits and potential problems are discussed.
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7/1/1986 - Conference papersThis report summarizes work sponsored by the Bureau of Mines in the development of a remote operating system (ROS) for controlling a thin-seam continuous miner (TSCM) 500 feet or more distant from the extraction face.
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1/1/1984 - Reports of InvestigationsThe Bureau of Mines has successfully tested a method to simulate methane (CH4) flows from face areas through the returns of noncoal mines. This technique involves releasing a small quantity of tracer gas at a working area and sampling for that gas downs...
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1/1/1980 - Reports of InvestigationsThe face ventilation measurement method developed by the Bureau of Mines involves releasing a small volume of tracer gas (SF6) on the off-curtain side of the working face at the start of the mining cycle.
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Content source: National Institute for Occupational Safety and Health, Mining Program