Results 261 - 270 of 339

• Evaluation of a Signaling and Warning System for Underground Mines
  5/1/1997 - Reports of Investigations
  A report evaluating a wireless signaling and warning system for underground mines applicable to both coal and non-coal mines. A TeleMagnetic Signalling Systems wireless ultra-low-frequency electromagnetic signaling system was installed and tested.
• Geotechnical Factors Influencing Violent Failure in U.S. Mines
  3/1/1997 - Conference papers
  Sudden, violent failures of rock around mine openings influence access, ventilation, and safety in both hard-rock and coal mines. The authors initiated a comprehensive study to develop predictive tools for assessing potential rock failure.
• Update on the Continuing Functions of the Former US Bureau of Mines
  1/1/1997 - Peer reviewed journal articles
  In fiscal 1996, the US Congress directed that the US Bureau of Mines (USBM) be closed. This article provides a summary of the continuing functions, the agencies involved and the points of contact for each continuing function.
• Update on Mining Health and Safety Research
  1/1/1996 - Conference papers
  This address covers the areas of assessing the current status of the Mining Health and Safety Research Program and outlining the need and direction for continued research.
• Self-Contained Self-Rescuer Field Evaluation: Fifth-Phase Results
  1/1/1996 - Reports of Investigations
  A joint effort by the Pittsburgh Research Center (PRC) and the Mine Safety and Health Administration (MSHA) 3 was undertaken to determine how well self-contained self-rescuers (SCSR's), deployed in accordance with Federal regulations (30 CFR 75.1714), h...
• A Profile of Workers' Experiences and Preparedness in Responding to Underground Mine Fires
  1/1/1996 - Reports of Investigations
  214 underground coal miners were interviewed to determine mine workers' state of fire-fighting preparedness and the technology being used to detect and respond to underground mine fires. Several important changes are suggested to deal with fires.
• Criteria for a Recommended Standard: Occupational Exposure to Respirable Coal Mine Dust: Occupational Exposure to Respirable Coal Mine Dust
  9/1/1995 - NIOSH/USBM numbered publications
  Information regarding adverse health effects resulting from exposure to respirable coal mine dust was reviewed as a basis for the development of new occupational safety and health standards. Recommendations are provided concerning respirable coal mine d...
• Technology News 440 - Improved Dust Control for Surface Coal Mine Drills With Rotoclone Collectors
  10/1/1994 - Technology News
  A method is described to increase the dust-control effectiveness of the Rotoclone dry-dust collection systems used on surface coal mine drills.
• A Spatial/Spectral Domain Microwave Coal Seam Imaging Sensor-Progress in Signal Processing
  7/1/1994 - Conference papers
  The paper, presents the results of roof coal thickness measurements in underground mines and rib coal thickness measurements in highwall mines. The microwave sensor described uses a unique spatial modulation scheme created by antenna motion, along with ...
• Advances in Mine Emergency Communications
  4/1/1994 - Conference papers
  To address communicating while wearing an SCSR, two-way, FM radios were built in and improved mouthpieces were added to the SCSR to improve the ability to communicate. Prototypes we built and tested. Leaky feeder systems are also described.