Results 51 - 60 of 90

• Noise Source Identification on a Continuous Mining Machine
  7/1/2008 - Conference papers
  In the Hemi-anechoic chamber of the Pittsburgh Research Laboratory noise source identification on a continuous miner was performed using phased array measurements and a frequency domain beamforming algorithm with Diagonal Removal.
• A Noise Control for A Roof Bolting Machine: Collapsible Drill Steel Enclosure
  7/1/2008 - Conference papers
  This paper describes and evaluates an engineering noise control for the roof bolting machine, namely the collapsible drill steel enclosure.
• 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.
• Application of a Microphone Phased Array to Identify Noise Sources on a Horizontal Vibrating Screen
  7/1/2008 - Conference papers
  This paper provides detailed information on the findings of NIOSH research measuring the sound power level generated by a horizontal vibrating screen with the screen either directly on the floor or on rubber isolation pads.
• Snapshot of Noise and Worker Exposures in Sand and Gravel Operations
  3/1/2008 - Peer reviewed journal articles
  This paper presents research examining noise on dredges used in several surface mine sand and gravel operations and in the processing facilities.
• NIOSH Hearing Loss Simulator Instruction and Training Guide
  3/1/2008 - NIOSH/USBM numbered publications
  This user manual explains objectives that can be addressed with the NIOSH Hearing Loss Simulator and training scenarios applied to real-life, real worker scenarios. This guide explains the simulator's functions in detail.
• Analysis of Nonstandard Noise Dosimeter Microphone Positions
  3/1/2008 - Peer reviewed journal articles
  This study, conducted as part of a project to evaluate a new type of noise exposure monitoring paradigm, showed that the effects of dosimeter microphone placement in a diffuse field were found to be minor for most of the test microphones/locations.
• Practical Application of a Partial Cab to Reduce the A-Weighted Sound Level at the Operator's Station on Surface Drill Rigs
  12/1/2007 - Peer reviewed journal articles
  This paper discusses the results of a collaboration with a local drilling company to design and install a partial cab between the operator and the drill steel in an effort to reduce the sound level at the operator station of a surface drill rig.
• Identification of Noise Sources on Longwall Panels Using Multiple Time-Synchronized Dosimeters
  12/1/2007 - Peer reviewed journal articles
  This paper describes research designed to develop guidelines and test procedures for identifying all noise sources that are major contributors to the underground noise exposure of longwall coal mining system workers.
• The Modern Evolution of Hearing Conservation Regulations
  12/1/2007 - Non-peer reviewed journal articles
  This report compares components of hearing conservation regulations from the Occupational Safety and Health Administration, the Mine Safety and Health Administration, the Federal Railroad Administration, and the 1998 NIOSH "best practices" criteria.