Results 61 - 70 of 120

• Analysis of the Silica Percent in Airborne Respirable Mine Dust Samples from U.S. Operations
  2/1/2014 - Book chapters, Peer reviewed journal articles
  A journal article presenting an analysis of the % of silica in dust samples for the U.S. mining industry collected from 1997 to 2011.
• Attenuation and duration of seismic signals generated from controlled methane and coal dust explosions in an underground mine
  12/1/2013 - Peer reviewed journal articles
  Seismic monitoring provides a useful means for detection and evaluation of events resulting from mining activity.
• Biodiesel Versus Diesel Exposure: Enhanced Pulmonary Inflammation, Oxidative Stress, and Differential Morphological Changes in the Mouse Lung
  10/1/2013 - Peer reviewed journal articles
  A study to compare the effects of particles generated by engine fueled with neat biodiesel and neat petroleum-based diesel.
• Deposition Uniformity of Coal Dust on Filters and its Effect on the Accuracy of FTIR Analyses for Silica
  7/1/2013 - Peer reviewed journal articles
  A study investigating a FTIR method for end-of-shift silica measurement on filter samples that assesses the influence of radial deposition uniformity on the accuracy of the method.
• Real-time Diesel Particulate Monitor for Underground Mines
  6/1/2013 - Peer reviewed journal articles
  An article evaluating a commercial instrument developed based on NIOSH research for measuring EC concentrations in real time.
• Mutagenicity of Biodiesel or Diesel Exhaust Particles and the Effect of Engine Operating Conditions
  3/1/2013 - Peer reviewed journal articles
  A study of the mutagenic potential of diesel emissions from neat and blended soy-based fatty acid methyl ester (FAME) biodiesel compared to ULSD PM using different engine operating conditions and exhaust aftertreatment configurations.
• Effects of a diesel particulate filter regeneration process on aerosols in an underground mine
  12/1/2012 - Peer reviewed journal articles
  This study was conducted to evaluate the effects of a diesel particulate filter (DPF) regeneration process on the concentrations and size distributions of aerosols in an underground mine.
• Toward developing a new occupational exposure metric approach for characterization of diesel aerosols
  12/1/2012 - Peer reviewed journal articles
  In this study, the current exposure metric and two additional metrics, the surface area and the total number concentration, were evaluated by conducting simultaneous measurements of diesel ultrafine aerosols in a laboratory setting.
• Development of a canopy air curtain to reduce roof bolters' dust exposure
  7/1/2012 - Peer reviewed journal articles
  This experimentally designed air curtain, adapted for roof bolting machines used in this study, is based upon previous design prototypes, computational fluid dynamics (CFD) simulations and trial-and-error testing.
• Analysis of Post-Explosion Residues for Estimating Flame Travel During Coal Dust Deflagrations
  10/1/2011 - Peer reviewed journal articles
  NIOSH conducted a series of large-scale explosion experiments at the Lake Lynn Experimental Mine to investigate the inerting effect of limestone rock dust. Post-explosion dust residue samples were analyzed to infer flame travel.