Results 1 - 10 of 10

• The Effect of an Insertion Lubricant on the Noise Attenuation of Foam Earplugs
  7/1/2008 - Conference papers
  This study examines the use of a commercially-available lubricant for hearing aids to determine whether it would facilitate improved fit and attenuation for earplugs.
• Torso Flexion Loads and Fatigue Failure Mode of Human Lumbosacral Motion Segments
  1/1/2005 - Peer reviewed journal articles
  This study's objective was to simulate the postures and loads experienced by the lumbar spine during repetitive lifting of weights in different torso flexion postures, and to analyze the fatigue failure response of lumbosacral motion segments.
• CFD Analysis of Mine Fire Smoke Spread and Reverse Flow Conditions
  6/1/1999 - Conference papers
  A Computational Fluid Dynamics (CFD) program was used to model buoyancy induced Product-Of-Combustion (POC) spread from experimental fires in the National Institute for Occupational Safety and Health (NIOSH), Pittsburgh Research Laboratory (PRL), safety...
• The Cost Relationship Between Performance Engineering and Human Behavior
  1/1/1996 - Peer reviewed journal articles
  This field trial of the Work Crew Performance Model affirms the congruency between production and operator training by providing a unique cost linkage between performance engineering and human behavior.
• The Availability of Primary Copper in Market Economy Countries: A Minerals Availability Appraisal
  1/1/1992 - Information Circulars
  A U.S. Bureau of Mines study on the potential availability of copper from 204 mines and deposits in market economy countries.
• Methane Migration Characteristics of the Pocahontas No. 3 Coalbed
  1/1/1972 - Reports of Investigations
  Methane-flow and pressure data taken from a mine in the Pocahontas No. 3 Coalbed are compared with flow rates from lump coal obtained in laboratory experiments. From this, it is concluded that the main source of gas is the intact coalbed rather than a "...
• Methane Emission Rate Study in a Deep Pocahontas No. 3 Coalbed Mine in Conjunction With Drilling Degasification Holes in the Coalbed
  1/1/1972 - Reports of Investigations
  A degasification experiment was conducted in a Pocahontas No. 3 Coalbed mine in Virginia. It involved (1) drilling holes in the coalbed in the outside headings of a set of five being developed in virgin area and (2) conducting a methane emission rate st...
• Methane Emission in Coal Mines: Effects of Oil and Gas Wells
  1/1/1972 - Reports of Investigations
  The method of moving averages was found useful in assessing the nature of methane emission in coal mines. Emission rates were influenced markedly by the presence of abandoned oil and gas wells in the vicinity of the mine. Such wells appeared to increase...
• Methane Emission Rate Studies in a Central Pennsylvania Mine
  1/1/1971 - Reports of Investigations
  The purpose of this study was to determine the characteristics of methane emissions during coal extraction by a longwall mining system. The study was conducted over 22 consecutive shifts. The average methane emission rate from the Lower Kittanning coalb...
• Methane Emission Rate Studies in a Northern West Virginia Mine
  8/1/1970 - Technical Progress Reports
  Methane emission rates were studied in a Pittsburgh coalbed mine in northern West Virginia. Air volumes and methane percentages were recorded, and time studies of the miner were made during five consecutive operating days, during which a complete cycle...