Results 591 - 600 of 646

• Mine Fire Detection Under Zero Airflow Conditions
  2/1/1997 - Conference papers
  Report on a series of diesel fuel fire experiments were conducted in the Pittsburgh Research Center's Safety Research Coal mine (SRCM) to determine products-of-combustion (POC) spread rates along a single entry under zero imposed airflow conditions.
• Impact of Unbalanced Intake and Scrubber Flows on Face Methane Concentrations
  2/1/1997 - Conference papers
  Research was conducted to investigate how ventilation of a mining face is affected when scrubber flow is greater or less than intake flow.
• Status of Dust Control Technology on U.S. Longwalls
  2/1/1997 - Conference papers
  NIOSH conducted dust surveys at 13 longwalls operating throughout the U.S. and collected information to: identify current operating practices on these longwalls, identify the types of dust controls in use, etc.
• Continuous Respirable Mine Dust Monitor Development
  2/1/1997 - Conference papers
  NIOSH initiated the development of a fixed-site machine-mounted continuous respirable dust monitor. The technology chosen for monitor development is the Rupprecht and Patashnick Co., Inc. tapered element oscillating microbalance. Laboratory and in-mine ...
• Electrical Fault Detection on Downed DC Trolley Lines
  2/1/1997 - Conference papers
  NIOSH has conducted research to improve electrical fault detection on coal mine direct current (dc) trolley systems. Tests were conducted at cooperating mines to assist in developing a neural-network-based detection algorithm for distinguishing between ...
• A Technique for Measuring Toxic Gases Produced by Blasting Agents
  1/1/1997 - Conference papers
  Traditional techniques to experimentally determine toxic fumes produced by detonating high explosives are not applicable to blasting agents. To detonate properly, blasting agents require confinement, a significant booster, and other parameters.
• Investigation of a Rock-Burst Site, Sunshine Mine, Kellogg, Idaho
  1/1/1997 - Conference papers
  Rock masses in deep-level mines are subject to high stresses, which can result in unexpected failure of rock into mined-out openings. Personnel from two research centers of the former U.S. Bureau of Mines, Spokane and Twin Cities, investigated a rock b...
• Worker Responses To Realistic Evacuation Training
  1/1/1997 - Conference papers
  This paper discusses the data collected during an emergency evacuation training exercise at an underground mine in the United States. The focus of this paper is on the human reaction to smoke and the use of personal protective equipment.
• Diesel Exhaust Aerosol, Review of Measurement Technology
  11/1/1996 - Conference papers
  The U.S. Bureau of Mines and others have conducted a number of occupational exposure surveys since the publication of the International Agency for Research on Cancer report of 1989, which labeled diesel exhaust as a probable human carcinogen. This repor...
• A Guidance Sensor for Continuous Mine Haulage
  10/1/1996 - Conference papers
  Reports on the application of near infrared sensor technology for the automatic guidance of a continuous haulage system