Search U.S. government technical reports digitized or harvested by TRAIL.
Explosion-proof bulkheads :present practices
An in-situ diffusion parameter for the Pittsburgh and Pocahontas No. 3 coalbeds
Ventilation eddy zones at a model coal mine working face
Multipoint detection of products of combustion with tube bundles :transit times, transmissions of submicrometer particulates, and general applicability
Forecasting methane hazards in metal and nonmetal mines