Results 191 - 200 of 249

• Shiftwork: A Guide for Schedule Design
  1/1/1994 - Guides and manuals, NIOSH/USBM numbered publications
  This guide discusses what mining companies can do if they are considering changes in their shiftwork practices.
• Self-Contained Self-Rescuer Field Evaluation: Fourth-Phase Results
  1/1/1994 - Reports of Investigations
  A joint effort by the U.S. Bureau of Mines (USBM) and the U.S. Mine Safety and Health Administration (MSHA) was undertaken to determine how well self-contained self-rescuers (SCRS's), deployed in accordance with Federal regulations (30 CFR 75.1714), hel...
• Self-Contained Self-Rescuer Field Evaluation: Results From 1982-90
  1/1/1992 - Reports of Investigations
  A joint effort by the Bureau of Mines and the U.S. Mine Safety and Health Administration was undertaken to determine how well self-contained self-rescuers, deployed in accordance with Federal regulations survived the underground environment with regard ...
• Mine Safety Education and Training Seminar: Proceedings: Bureau of Mines Technology Transfer Seminar
  1/1/1988 - Conference proceedings, Information Circulars
  This proceedings volume presents several new developments that are helping to improve the quality and efficiency of health, safety, and occupational skills training in the mining community. Several papers address the issue of how to teach and assess min...
• Interaction of Radio Transmissions on Mine Monitoring and Control Systems
  9/1/1986 - Contract reports
  This report describes the creation of an efficient method to determine if command, control, communication, and monitoring (3cm) equipment in coal, metal, and nonmetal mines is susceptible to radio frequency interference (RFI) from the medium-frequency (...
• Self-Contained Self-Rescuer Field Evaluation: First-Year Results of 5-Year Study
  1/1/1986 - Reports of Investigations
  A joint effort by the Bureau of Mines and the Mine Safety and Health Administration, U.S. Department of Labor, was undertaken to determine how well self-contained self-rescuers (SCSR's), deployed in accordance with Federal Regulations (30 CFR 75.1714), ...
• Through-the-earth Electromagnetic Trapped Miner Location Systems. A Review
  7/1/1985 - Open File Reports
  Efforts to produce electromagnetic systems for the location of trapped miners underground and to communicate with them were surveyed, from the 1920s to 1981. Theoretical studies of through-the-earth electromagnetic transmissions are described as well as...
• Control and Monitoring Via Medium Frequency Techniques and Existing Mine Conductors
  7/1/1985 - Peer reviewed journal articles
  Medium frequency (MF) techniques have been successfully applied to the problem of radio voice communications in both coal and metal and nonmetal mines. MF techniques can also be applied to the areas of in-mine control and monitoring. Preliminary work in...
• A Medium Frequency Wireless Communication System for Underground Mines
  9/1/1984 - Contract reports, Open File Reports
  This report deals with information regarding a new Medium Frequency (MF) Wireless Communication System for underground mines. This new telecommunication system works on low loss electromagnetic wave propagation modes which allow it to provide quality ra...
• Adaptive-Noise-Cancellation Techniques for Through-the-Earth Electromagnetics: Volume III
  2/1/1984 - Contract reports
  An electromagnetic (EM) system for the location of trapped mine workers at coal-mine (300 m) depths has been developed.