Results 41 - 50 of 514

• Solutions to Prevent Materials-Handling Injuries in Underground Coal Mines
  2/1/2007 - Peer reviewed journal articles
  This paper describes three mechanical methods - the mobile manipulator, the in-mine hoist, and a cable-handling system - developed by NIOSH to reduce injuries related to handling supplies or material, loading and unloading, and moving power cables.
• Relationship Between Elemental Carbon, Total Carbon, and Diesel Particulate Matter in Several Underground Metal/nonmetal Mines
  2/1/2007 - Peer reviewed journal articles
  To evaluate how elemental carbon (EC), a surrogate of diesel particulate matter (DPM), predicts DPM, measurements of total carbon (TC) and EC were taken away from potential interferences in four underground metal/nonmetal mines during production.
• A Measurement Method for Determining Absorption Coefficients for Underground Mines
  12/1/2006 - Conference papers
  This paper presents a method using a ray-tracing technique to determine absorption coefficients for underground mines. Absorption coefficients are determined and presented for octave bands from 63 Hz to 8 kHz.
• Detrimental Effects of Capacitance on High-Resistance-Grounded Mine Distribution Systems
  9/1/2006 - Peer reviewed journal articles
  There are potential detrimental effects of capacitance charging currents during line-to-ground faults in mine power distribution systems. A representative mine power system is modeled, and simulations with faults at various locations are conducted.
• Operationalizing Normal Accident Theory for Safety-Related Computer Systems
  11/1/2005 - Peer reviewed journal articles
  Normal Accident Theory is a classic argument in organizational sociology, although it has been criticized as having imprecise definitions and lacking criteria for quantifying complexity. These limitations are addressed by a unique approach.
• Ground Control Design for Highwall Mining
  2/1/2005 - Conference papers
  Highwall stability remains a major concern during highwall mining. Geologic structure (hillseams) and pillar stability are the two major factors affecting highwall stability.
• Evaluation of the SKC® DPM Cassette for Monitoring Diesel Particulate Matter in Coal Mines
  12/1/2004 - Peer reviewed journal articles
  A commercial version of the BOM impactor, called the DPM Cassette, was recently introduced by SKC®. Tests were conducted to evaluate the performance of the DPM Cassette for measuring diesel-source elemental carbon in the presence of coal dust.
• Analysis of Mine Fires for All U.S. Metal/Nonmetal Mining Categories, 1990-2001
  11/1/2004 - Information Circulars
  This report analyzes mine fires for all U.S. underground and surface metal/nonmetal mining categories during 1990-2001 by state and six successive 2-year time periods.
• Analysis of Practical Ground Control Issues in Highwall Mining
  8/1/2004 - Conference papers
  This article discusses highwall stability, reasons for early pull out of highwall miner holes, and geotechnical engineering and planning factors, as well as operating practices to improve highwall stability and minimize the risk of a trapped miner.
• Computer Simulation of Ground Behaviour and Rock Bolt Interaction at Emerald Mine
  8/1/2004 - Conference papers
  This paper focuses on a computer simulation used to model roof behavior and rock bolt interaction in a collaborative study of ground behavior, reinforcement performance, and stress redistribution in a coal mine entry under severe horizontal stress.