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Results 71 - 80 of 577
1/1/2002 - Peer reviewed journal articlesNIOSH investigated how the starting of induction motors may cause nuisance tripping of short-circuit protection on coal mine power systems.
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.
11/1/2000 - Peer reviewed journal articlesThe Roof Monitoring Safety System (RMSS) is described, compared to other roof-monitoring technology, and described in context with proactive ground control plans for stone mines.
5/1/2000 - Peer reviewed journal articlesOptical technologies have progressed rapidly in the past 15 years. NIOSH is conducting a study to help provide a scientific basis for developing appropriate safety guidelines for optical equipment in underground coal mines.
9/1/1999 - Peer reviewed journal articlesAlmost every process has a predecessor, and studying the predecessor helps to define needs and shortcomings to be addressed. This paper illustrates how such an approach was used to assess remote machine operation in underground coal mines.
4/1/1999 - Peer reviewed journal articlesThe Coal Mine Roof Rating (CMRR) has been widely accepted as a tool for geologic characterization and mine planning. The application of the CMRR to extended cuts (cuts greater that 6 m (20 ft) in length) is discussed.
Distributed Measurement of Conductor Temperatures in Mine Trailing Cables Using Fiber-Optic Technology3/1/1998 - Peer reviewed journal articlesMine trailing cables operated above safe thermal limits can cause premature insulation failure, increasing electrocution and fire hazards. This paper describes an approach to measuring temperatures within reeled cable under dynamic test conditions.
1/1/1998 - Peer reviewed journal articlesHorizontal stresses are caused by global plate-tectonic forces. This paper presents six case histories of mines that encountered roof falls or difficult ground conditions at the headgate caused by horizontal-stress concentrations.
1/1/1996 - Peer reviewed journal articlesThis paper reports US Bureau of Mines (USBM) research on the explosibility of coal dusts. The purpose of this work is to improve safety in mining and other industries that process or use coal.
A Human Component to Consider in Your Emergency Management Plans: The Critical Incident Stress Factor7/1/1995 - Peer reviewed journal articlesIn recent years the issue of human stress response in emergency workers has begun to receive attention. This paper presents a rationale for considering human stress as a significant factor in the management of emergencies. It discusses the concept of st...