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12/1/2002 - Technology NewsThis Tech News reports on how the use of propeller fans can significantly improve the ventilation in large entry stone mines due to their efficiency at lower pressures and less required horsepower.
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6/1/2001 - Conference papersA project to evaluate the South African bagged stone dust explosion barrier was successfully completed at the NIOSH Lake Lynn Experimental Mine.
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Content source: National Institute for Occupational Safety and Health, Mining Program