Results 21 - 25 of 25

• 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), ...
• A Short-Range Locator System for Detecting Trapped Miners
  1/1/1984 - Reports of Investigations
  A short-range locator system capable of locating trapped miners has been devised. The system consists of a light-weight, low-power radio transmitter incorporated into a miners cap lamp battery and a directional receiver carried by rescuers.
• Above-the-Earth Field Contours for a Dipole Buried in a Homogeneous Half-Space
  1/1/1983 - Reports of Investigations
  An essential element of the USBM electromagnetic location and communication system for trapped miners is knowledge of the surface and above-surface electromagnetic fields created by an underground transmitter.
• Performance Evaluation of Electromagnetic Techniques for the Location of Trapped Miners
  1/1/1982 - Reports of Investigations
  The Bureau of Mines (NIOSH Mining) has conducted field studies in coal mines throughout the United States to determine the effectiveness of electromagnetic techniques in locating miners trapped underground following a mine accident.
• An Electromagnetic System for Detecting and Locating Trapped Miners
  1/1/1976 - Reports of Investigations
  The theory of electromagnetic fields indicates such fields could be used to detect and locate trapped miners. To be useful, the hardware of the system must meet a number of requirements, including small size, intrinsic safety, and rugged construction. S...