Search U.S. government technical reports digitized or harvested by TRAIL.
Tracer gas as an aid in mine ventilation analysis
Using sulfur hexafluoride as a gaseous tracer to study ventilation systems in mines
Building stoppings in mines with large openings
Using inflatable stoppings during production in noncoal mines
Self-sealing brattice for coal mine rescue and recovery
Quick-fix blowout stoppings for hardrock mines
Bureau of Mines damage-resistant brattice
Correction factors for low-velocity airflow measurements in mines
Forecasting methane hazards in metal and nonmetal mines
Water spray vent tube cooler for hot stopes :a preliminary report
Face ventilation measurement with sulfur hexafluoride (SF₆)
SF₆ tracer gas tests of bagging-machine hood enclosures
Effects of humidity on salt mine dust :a preliminary report
The water spray cooler :an update
Canopy-air curtain dust reductions on a gathering-arm loader
Effectiveness of three water spray methods used to control dust during bagging
Sulfur hexafluoride as a mine ventilation research tool :recent field applications
New techniques for reducing stopping leakage
Use of foam for dust control in minerals processing
In-mine remote-actuated stench fire-warning system
New bag nozzle to reduce dust from fluidized air bag machines
Simulation of methane flows in noncoal mines
Adding steam to control dust in mineral processing
Measurement of air velocity in mines
Laboratory evaluation of spray-applied rigid urethane foams
Face ventilation for oil shale mining
Dust control on longwall shearers using water-jet-assisted cutting
Dust reduction capabilities of five commercially available bag valves
Water-jet-assisted roadheaders
Performance characteristics of large-capacity face ventilation systems for oil shale mining
Recent developments in spray cooling of deep mines
Evaluating ventilation parameters of three coal mine gobs
Water-jet-assisted drag bit cutting in medium-strength rock
Analysis of rock chips produced during water-jet-assisted cutting
Reducing dust exposure of workers during bag stacking in enclosed vehicles
Leakage and performance characteristics of large stoppings for room-and-pillar mining
Evaluation of water-jet-assisted drilling with handheld drills
Techniques to increase water pressure for improved water-jet-assisted cutting
Evaluation of water-jet-assisted cutting capability on longwall shearers
A review of water-jet-assisted rock cutting
Jet fan ventilation in very deep cuts :a preliminary analysis