Results 11 - 20 of 618

• Understanding and Quantifying Arc Flash Hazards in the Mining Industry
  11/1/2011 - Peer reviewed journal articles
  Noncontact electric arc burns are the most common cause of electrical injury in mining according to data for 1990 through 2001. Results from a NIOSH study of arc flash hazards in mining and recommendations to reduce these injuries are presented.
• CO and CO2 Emissions from Spontaneous Heating of Coal Under Different Ventilation Rates
  10/1/2011 - Peer reviewed journal articles
  This study evaluated CO and CO2 emissions from spontaneous heating of a U.S. coal sample in an isothermal oven under different airflow ventilation rates from 100 to 500 cm3/min. Experiments were conducted at oven temperatures of 70, 90, and 100 °C.
• Coal Dust Exposure and Mortality From Ischemic Heart Disease Among a Cohort of U.S. Coal Miners
  10/1/2011 - Peer reviewed journal articles
  Particulate exposure from air pollution increases the risk of ischemic heart disease (IHD) mortality. Although coal miners are highly exposed to coal dust particulate, studies of IHD mortality risk among coal miners have had inconsistent results.
• Benchmarking Longwall Dust Control Technology and Practices
  9/1/2011 - Peer reviewed journal articles
  Results from the NIOSH underground dust surveys and current longwall dust control technology and operating practices are discussed.
• Forces and Moments on the Knee During Kneeling and Squatting
  8/1/2011 - Peer reviewed journal articles
  For 10 subjects in four postures, euler angle decomposition and inverse dynamics were used to determine the knee angles, the net forces, and the moments applied to the tibia during kneeling and squatting with and without kneepads.
• Impact of Air Velocity on the Detection of Fires in Conveyor Belt Haulageways
  5/1/2011 - Peer reviewed journal articles
  This paper discusses the impact of ventilation airflow on alarm times of the smoke detectors and video cameras, CO levels, smoke optical densities and smoke obscuration, total smoke mass concentrations, and fire heat release rates.
• Discomfort Glare Comparison for Various LED Cap Lamps
  5/1/2011 - Peer reviewed journal articles
  Researchers at the National Institute for Occupational Safety and Health (NIOSH) are investigating different lighting technologies with the objective of improving mine safety.
• Field Evaluation of Air-blocking Shelf for Dust Control on Blasthole Drills
  3/1/2011 - Peer reviewed journal articles
  Field tests confirm that an air-blocking shelf installed in the inside perimeter of a blasthole drill shroud substantially improves dust control. This modification reduced respirable dust by 66%–81% in the immediate vicinity of the shroud...
• Pillar Strength in Underground Stone Mines in the United States
  1/1/2011 - Peer reviewed journal articles
  Stone mines in the eastern and midwestern United States use the room-and-pillar method of mining to extract relatively flat-laying sedimentary formations. A survey of pillar performance was carried out to identify potential modes of instability.
• In-Mine Study of High-Expansion Firefighting Foam
  1/1/2011 - Peer reviewed journal articles
  This paper describes the production of high-expansion firefighting foam and discusses the in-mine experimental tests and results.