Results 401 - 410 of 618

• Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives
  3/1/2009 - Peer reviewed journal articles
  This study presents reservoir and elastic properties of coal measure rocks in the Lower Monongahela Group in Greene County, southwestern Pennsylvania, with results that can be used as data sources for reservoir studies related to methane control.
• An Analysis of Injury Claims From Low-Seam Coal Mines
  3/1/2009 - Peer reviewed journal articles
  This article provides an analysis of injury claims for eight mining companies operating low-seam coal mines during calendar years 1996-2008.
• Evaluation of Sequential Extraction Procedures for Soluble and Insoluble Hexavalent Chromium Compounds in Workplace Air Samples
  2/1/2009 - Peer reviewed journal articles
  The results of this study by NIOSH have served to provide performance data in support of the procedures described in the international standard methods, for which such results were previously unavailable in the peer-reviewed literature.
• Gas Sorption and Transport in Coals: A Poroelastic Medium Approach
  1/1/2009 - Peer reviewed journal articles
  In this paper, single-component gas sorption and transient diffusion processes are described within coal matrix exhibiting bimodal pore structure.
• A Study on Effects of Size and Structure on Hygroscopicity of Nanoparticles Using a Tandem Differential Mobility Analyzer and TEM
  1/1/2009 - Peer reviewed journal articles
  This study focuses on how hygroscopic properties, deliquesence relative humidity (DRH) and hygroscopic growth factor (GF) of nanoparticles vary with their size and structural properties.
• Ventilating Large Opening Mines
  1/1/2009 - Peer reviewed journal articles
  This paper discusses air quality concerns and methods to improve the ventilation of large-opening mines whose entries are at least 93m² (1,000 ft²).
• Noise Controls For Roof Bolting Machines
  1/1/2009 - Peer reviewed journal articles
  This paper describes NIOSH research to evaluate noise generated by a roof bolting machine and its components. Results are given for two engineering controls for the roof bolting machine: a bit isolator and a drill chuck isolator.
• Laboratory Investigation of Enclosed Cab Filtration System Performance Factors
  1/1/2009 - Peer reviewed journal articles
  NIOSH experimental investigation results indicate that the intake filter efficiency and recirculation filter were the two most influential factors on cab protection performance.
• Overview of Coal Mine Ground Control Issues in the Illinois Basin
  12/1/2008 - Peer reviewed journal articles
  NIOSH has been actively gathering ground control information in the Illinois Basin in an effort to understand and control difficult mining conditions and has documented best practices for screen installation.
• In-Mine Evaluation of Smart Mine Fire Sensor
  12/1/2008 - Peer reviewed journal articles
  This paper describes the in-mine evaluation of a smart mine fire sensor system and discusses recommendations for improving the system.