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- Technology News
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4/1/2006 - Technology NewsUpdates to the NIOSH suite of coal mine ground control software are described, including the Analysis of Roof Bolt Systems (ARBS), the Support Technology Optimization Program (STOP), and the Coal Mine Roof Rating (CMRR).
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4/1/2003 - Technology NewsThe Coal Mine Roof Rating (CMRR) is a roof classification system. It was first introduced to the mining community in 1994. It has now been written to a user friendly version that can be run on any PC with a Windows operating system.
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2/1/1995 - Technology NewsThe objective of this work is to develop a comprehensive, practical method for designing longwall gate entries that considers coal pillar size, mine roof quality, and artificial support in an easy-to-use computer program.
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Content source: National Institute for Occupational Safety and Health, Mining Program