Results 1 - 10 of 217

• Reduced Workers’ Compensation Costs With Roof Screening
  9/1/2012 - Peer reviewed journal articles
  This paper quantifies potential savings in WC premiums due to a reduction in rock fall injuries after roof screening in Pennsylvania’s underground coal mines. Two hypothetical mines with realistic injury and WC premium estimates were used.
• A CART Technique to Adjust Production from Longwall Coal Operations under Ventilation Constraints
  3/1/2012 - Peer reviewed journal articles
  The CART-based model that is given in this paper can be used to predict methane emission rates and to adjust operation parameters under ventilation constrains in longwall mining.
• Evaluation of the Approach to Respirable Quartz Exposure Control in U.S. Coal Mines
  2/1/2012 - Peer reviewed journal articles
  The performance of the current regulatory approach was found to be lacking due to the use of a variable property - quartz content in airborne dust - to establish a standard for subsequent exposures.
• An Analysis of Reservoir Conditions and Responses in Longwall Panel Overburden During Mining and its Effect on Gob Gas Well Performance
  2/1/2012 - Peer reviewed journal articles
  NIOSH conducted a cooperative research study to provide direct measurements of changing reservoir conditions in longwall panel overburden.
• Evaluating Portable Infrared Spectrometers for Measuring the Silica Content of Coal Dust
  1/1/2012 - Peer reviewed journal articles
  Miners face a variety of respiratory hazards while on the job, including exposure to silica dust which can lead to silicosis, a potentially fatal lung disease.
• Field Study of Longwall Coal Mine Ventilation and Bleeder Performance
  1/1/2012 - Peer reviewed journal articles
  To assess the effectiveness of commonly applied ventilation strategies for improving air distribution and ventilation controls to meet statutory requirements.
• 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.
• 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.
• 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...
• 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.