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Results 31 - 40 of 57
9/1/2009 - Peer reviewed journal articlesA 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.
7/1/2009 - Peer reviewed journal articlesThis 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.
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 Controls5/1/2009 - Peer reviewed journal articlesThis 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.
10/1/2008 - Conference papersThis 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.
7/1/2008 - Conference papersIn 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.
7/1/2008 - Conference papersThis paper describes the results of different chain types and configurations installed on a continuous mining machine conveyor system and the resulting sound power levels.
3/1/2008 - Peer reviewed journal articlesThis paper presents research examining noise on dredges used in several surface mine sand and gravel operations and in the processing facilities.
3/1/2008 - NIOSH/USBM numbered publicationsThis 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.
2/1/2008 - Peer reviewed journal articlesThis paper describes the quiet-by-design approach of a noise control that reduced exposures of continuous mining machine operators by 3dB(A) using the four functional areas of Prevention through Design - Practice, Policy, Research, and Education.
11/1/2007 - Peer reviewed journal articlesThis article reviews the development and evaluation of two training exercises developed to inform drillers about noise, hearing loss and proper use of hearing protection, and discusses their use and availability.