Search U.S. government technical reports digitized or harvested by TRAIL.
Impact of using auxiliary fans on coal mine ventilation efficiency and cost
Dust considerations when using belt entry air to ventilate work areas
Determining the source of longwall gob gas :Lower Kittanning Coalbed, Cambria County, PA
The Effect of ventilation on the water spray pattern of automatic sprinkler heads
Impact of air velocity of the development and detection of small coal fires