Results 41 - 50 of 646

• Use of CFD Modeling to Study Inert Gas Injection into a Sealed Mine Area
  2/1/2010 - Conference papers
  This paper presents an overview of a novel PSA (pressure swing adsorption) plant, the details of the gas injection tests and CFD modeling work.
• Report on Early Strength Performance of Modern Day Weak Rock Mass Shotcrete Mixes
  2/1/2010 - Conference papers
  NIOSH is investigating the use of shotcrete in weak rock mass mines with the objective of reducing fatalities and injuries resulting from rock fall accidents.
• NIOSH Tools For Hearing Loss Prevention Programs
  2/1/2010 - Conference papers
  NIOSH has developed several new hearing loss prevention tools and interventions that specifically target behavioral and attitudinal barriers that keep miners from effectively acting to prevent their own hearing loss.
• Mine Illumination: A Historical and Technological Perspective
  2/1/2010 - Conference papers
  This paper describes the history of mine illumination studies, especially the work done by the former Bureau of Mines.
• An Analysis of the Potential of Roof Screening to Reduce Workers' Compensation Costs
  2/1/2010 - Conference papers
  The goal of this study was to determine the potential saving in workers' compensation (WC) premiums that could be achieved due to a reduction in rock fall injuries after roof screening.
• Continuous Miner Spray Considerations for Optimizing Scrubber Performance in Exhaust Ventilation Systems
  2/1/2010 - Conference papers
  This paper describes lab experiments to examine the effect of spray type, pressure, machine body blocking sprays, and scrubber airflow on dust and gas levels while using a 12.2 m (40 ft) exhaust ventilation curtain setback from the face.
• A Practical Method of Measuring Shotcrete Adhesion Strength
  2/1/2010 - Conference papers
  This paper presents the results of tests, describes the portable test system, and addresses some of the design issues encountered in the development of a rugged and reliable method for determining shotcrete adhesion strength in underground mines.
• Dust Capture Performance of a Water Exhaust Conditioner for Roof Bolting Machines
  2/1/2010 - Conference papers
  NIOSH conducted a series of laboratory tests using a roof bolting machine to assess the respirable dust capture ability of a water exhaust conditioner as compared to the standard exhaust muffler.
• An Analysis of Fiber-Reinforced Round Panel Strengths and Comparison to Wire Mesh Bag Strength
  2/1/2010 - Conference papers
  This paper explains the results of round determinate panel tests by NIOSH researchers and relates the flexural strength and toughness of fiber-reinforced shotcrete to known energy absorbing properties of wire mesh.
• Straight Line Walking and Path-Turn Identifying Algorithms for a Tracking Device Used in Underground Mines
  1/1/2010 - Conference papers
  This paper describes two algorithms that can provide greater accuracy for underground miner tracking systems.