Results 41 - 50 of 90

• Mining Haul Truck Cab Noise: An Evaluation of Three Acoustical Environments
  10/1/2009 - Peer reviewed journal articles
  This study examines noise exposure inside haul truck cabs during a typical workday involving normal operator practices, the effect of cab noise reduction features, the consequence of disabling noise controls, and the significance of maintenance.
• A Dual Sprocket Chain as a Noise Control for a Continuous Mining Machine
  9/1/2009 - Peer reviewed journal articles
  A dual sprocket conveyor chain for a CMM was examined both in the laboratory and in underground field studies to test the influence on lowering the sound power emissions of the chain conveyor of a CMM when compared to a standard chain.
• Technology News 536 - NIOSH Develops New Software to Analyze and Reduce Noise Exposure
  7/1/2009 - Technology News
  NIOSH has been performing research to analyze and reduce hazardous noise exposure in mines.
• Noise Source Identification on a Horizontal Vibrating Screen
  7/1/2009 - Peer reviewed journal articles
  This paper presents the results of a NIOSH study in collaboration with Acoustical and Vibrations Engineering Consultants Inc. (AVEC) to determine the dominant noise sources on a vibrating screen machine at low frequencies, i.e., 250 to 1,000 Hz.
• Determination of Sound Exposures (DOSES): Software Manual and Implementation Guide
  5/1/2009 - NIOSH/USBM numbered publications
  This manual describes the Determination of Sound Exposures (DOSES) software developed by NIOSH for use by mine management and safety personnel to simplify record keeping and analysis associated with time-motion studies and worker noise exposures.
• A Technique for Estimating the Sound Power Level Radiated by Pneumatic Rock Drills and the Evaluation of a CSIR Prototype Rock Drill with Engineering Noise Controls
  5/1/2009 - Peer reviewed journal articles
  This report describes research by NIOSH to reduce the noise exposures of jackleg drill operators and to prevent additional cases of noise induced hearing loss (NIHL) by developing and evaluating low-cost retrofit noise controls for equipment.
• 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.
• Technology News 534 - QuickFit Earplug Test Device
  12/1/2008 - Technology News
  National Institute for Occupational Safety and Health (NIOSH) has been performing research to improve the level of hearing protection by providing workers with an inexpensive, easy-to-use device to check earplug fit.
• Application of Phased Array Technology for Identification of Low Frequency Noise Sources
  10/1/2008 - Conference papers
  This paper describes research to control dominant noise sources in continuous miners. This work ranks noise radiated by different conveyor sections and determines the effect of a urethane-coated tail roller on the noise radiated by the tail section.
• Sound Restoration Hearing Protection: Genesis of a Standard Test Method
  7/1/2008 - Conference papers
  Issues related to testing the performance of sound restoration hearing protectors are outlined within this paper, and possible solutions are discussed.