Search U.S. government technical reports digitized or harvested by TRAIL.
Development of recording methanometers and recording anemometers for use in underground coal mines
Methane absorption in oil shale and its potential mine hazard
Sideboard device for improved face ventilation in coal mines
Face ventilation measurement with sulfur hexafluoride (SF₆)
Assessing the methane hazard of gassy coals in storage silos
New twin scrubber installation for continuous mining machines
Methane emissions from U.S. coal mines in 1980
Comparison of aerial and ground surveying of subsidence over an active longwall
Foundation response to subsidence-induced ground movements :a case study