Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
10066 results returnedSearch results
- Economic evaluation methodology
- A laboratory comparison of drag cutting methods in hard rock
- International mining cost indexation system :indexes for 96 countries
- Analyses of natural gases, 1986
- A critique of the dust explosibility index :an alternative for estimating explosion probabilities
- Analyses of natural gases, 1917-85
- True flammable gas detecting system
- Low-frequency vibrations produced by surface mine blasting over abandoned underground mines
- Bolt anchorage with gypsum-plaster water capsule cartridges
- Pillar load transfer associated with multiple-seam mining
- Analysis of rock chips produced during water-jet-assisted cutting
- Cobalt and nickel from lead-smelter matte :purification of leach liquor
- Acoustic emission monitoring of fracture development
- Test apparatus for measuring sound power levels of drills
- Effects of composition and processing variables on transverse rupture strength and hardness of nickel-alloy-bonded titanium carbide
- Large-scale testing of the ripper fragmentation system
- In situ comparison of radical and point-attack bits
- International regulation of diesel engine use underground :a country-by-country synopsis
- Continuous flotation testing to recover cobalt from Missouri lead ores
- Coal mine hazard detection using in-seam ground-penetrating-radar transillumination
- Clay veins :their occurrence, characteristics, and support
- Mineral issues-- 1987
- Fuse wire arc tester
- Fugitive dust control for haulage roads and tailing basins
- Effects of stimulation treatments on coalbeds and surrounding strata :evidence from underground observations
- Recovery of cobalt and copper from complex sulfide concentrates
- Cost estimation handbook for small placer mines
- Respirable dust levels in coal, metal, and nonmetal mines
- Mined land subsidence impacts on farmland with potential application to Illinois :a literature review
- Hose safety during high-pressure water-jet cutting
- MgO filtration research
- Coal combustion in a ventilated tunnel
- A review of the mechanisms of gas outbursts in coal
- Roof and rib fall accident and cost statistics :an in-depth study
- Mining applications of life support technology :proceedings, Bureau of Mines Technology Transfer Seminar, Pittsburgh, PA, November 20, 1986
- Fine grinding of coal by a turbomilling process
- Measurement of incombustible content of coal mine dust samples
- Water infusion for coal mine dust control :three case studies
- Physical properties and mechanical cutting characteristics of cobalt-rich managanese crusts
- An investigation of crack propagation with a wedge indenter to improve rock fragmentation efficiency
- Recovery of cobalt from spent copper leach solution using continuous ion exchange
- Bureau of Mines cost estimating system handbook (in two parts).
- Solubilities of sideronatrite and ferrinatrite in the system Na₂SO₄-Fe₂O₃-H₂SO₄-H₂O
- Accurate directional borehole drilling :a case study at the Navajo Dam, New Mexico
- Borehole (slurry) mining of coal, uraniferous sandstone, oil sands, and phosphate ore
- Zeta potential control for simultaneous enhancement of penetration rates and bit life in rock drilling
- Flotation of silicon carbide from waste sludges
- The character of five selected LANDSAT lineaments in southwestern Pennsylvania
- An Appraisal of Minerals Availability for 34 Commodities
- Analyses of natural gases, 1987
