Results 511 - 514 of 514

• Best Practices for Dust Control in Coal Mining
  1/1/2010 - Information Circulars, Safety guidelines, tips, and checklists
  This handbook was developed to identify available engineering controls that can help the industry reduce worker exposure to respirable coal and silica dust.
• Blast Wave Propagation in Underground Mines
  2/1/1995 - Conference papers
  This project investigates the behavior of blast waves from the detonation of high explosives in an underground mine.
• Apparent Earth Conductivity Over Coal Mines as Estimated from Through-the-Earth Electromagnetic Transmission Tests
  1/1/1984 - Reports of Investigations
  Electromagnetic narrow-band signals were transmitted through the earth at 27 coal mines located throughout the United States. From those tests, apparent earth conductivity values were derived based upon a homogeneous half-space model of the earth.
• Major Disasters at Metal and Nonmetal Mines and Quarries in the United States (Excluding Coal Mines)
  4/1/1949 - Information Circulars
  A  1949 U.S. Bureau of Mines Information Circular describing major U.S. metal/nonmetal mining disasters.