Results 351 - 360 of 618

• A Handheld Electrostatic Precipitator for Sampling Airborne Particles and Nanoparticles
  6/1/2010 - Peer reviewed journal articles
  Researchers at NIOSH are developing methods for characterizing ultrafine aerosols in workplaces. One method includes the detailed analysis of collected particles using electron microscopy (EM).
• Innovative Safety Interventions: Feasibility of Using Intelligent Video for Machinery Applications
  5/1/2010 - Peer reviewed journal articles
  NIOSH studied methods to prevent workers from being entangled in machinery at mining operations. A description of intelligent video, the technology, test procedures and results, implementation challenges, and future research needs are discussed.
• Analysis of Applied Forces and Electromyography of Back and Shoulders Muscles When Performing A Simulated Hand Scaling Task
  5/1/2010 - Peer reviewed journal articles
  This article describes experiments simulating rib scaling from an elevated bucket to examine force generation and electromyographic responses using two types of scaling bars at five target heights ranging from floor level to 176 cm.
• Impact of Air Velocity and Support Advance on Shield-Generated Dust
  4/1/2010 - Peer reviewed journal articles
  This paper investigates the influence of air velocity and shield advance rates on respirable dust levels. Also discussed are engineering controls currently used to reduce shield dust and alternative controls being investigated by NIOSH.
• Visual Performance for Trip Hazard Detection When Using Incandescent and LED Miner Cap Lamps
  4/1/2010 - Peer reviewed journal articles
  This NIOSH study determined if new LED-based cap lamp technology has an impact on visual performance in the context of detecting trip hazards for the visual environment of an underground coal mine.
• Rapid Detection and Suppression of Mining Equipment Cab Fires
  4/1/2010 - Peer reviewed journal articles
  This paper discusses large-scale experiments conducted by NIOSH to evaluate the effectiveness of optical flame detectors, photoelectric smoke detectors, and combined ionization/photoelectric smoke detectors for detecting mining equipment cab fires.
• Underground Coal Mining Injury: A Look at How Age and Experience Relate to Days Lost from Work Following an Injury
  4/1/2010 - Peer reviewed journal articles
  This study used the MSHA database on accidents, injury, and illness from the years 2003-2007 to examine how age and experience at the current mine, total years experience as a coal miner, and experience in the current job affects injury severity.
• Assessment of Equipment Operator's Noise Exposure in Western Underground Gold and Silver Mines
  3/1/2010 - Peer reviewed journal articles
  This report contains the description of studies conducted at U.S. western hard-rock mines to determine the levels of noise exposure of the miners.
• Morphological and Elemental Classification of Freshly Emitted Soot Particles and Atmospheric Ultrafine Particles using the TEM/EDS
  3/1/2010 - Peer reviewed journal articles
  Airborne soot particles have a significant effect on atmospheric chemistry and their detailed properties are thus of interest to researchers. There are many different types of soot with a variety of shapes and chemical composition. This paper presents n...
• Prediction of Porosity and Permeability of Caved Zone in Longwall Gobs
  3/1/2010 - Peer reviewed journal articles
  This work presents a fractal porous medium model to predict gob porosity and permeability for controlling methane flow and to predict air leakage into the gob.