TRAIL - Technical Report Archive and Image Library

Ionized fields in electrostatic separation :applications to secondary materials

Heat content and specific heat of six rock types at temperatures to 1,000⁰ C

Determination of metallic aluminum in recycled glass

In situ rock temperature :stress investigations in rock quarries

Thermal-chemical alteration of sandstone to increase permeability

Evaluation of some solid oxides as sorbents of sulfur dioxide

Modifying diesel engine operating parameters to reduce emissions

Hardness, tensile strength, and impact toughness of reservoir sandstone at extreme temperatures

The use of rock bolts or wire rope to increase the strength of fractured model pillars

Prediction of low-temperature carbonization properties of coal in advance of mining

Hydrodesulfurization of Venezuelan residual fuel oils

A three-dimensional dynamic programming method for optimal ultimate open pit design

Methane emission rate studies in a central Pennsylvania mine

Enthalpy and free energy of formation of vanadium subnitride (VN₀©ø₄₆₅), 298⁰ to 1,800⁰ K

Explosion-proof bulkheads :present practices

Rock-bolt anchorage in tertiary-gravel material :Badger Hill, California

Airblast-overpressure levels from confined underground production blasts

Dispersion strengthening of lead by coprecipitation

Influence of thermal treatments upon grindability of low-grade nonmagnetic iron ores

Computer calculation of binary organic liquid recovery by condensation from mixtures of binary organic vapor and air

Laboratory evaluation of some factors in cyaniding gold placers

Effect of temperature on the electrolytic preparation and recovery of samarium-cobalt alloy

Inhibition of coal dust-air flames

Ionic constituents of DC discharges in a He-SO₂ mixture

Electrowinning of oxygen from silicate rocks

Experiments on gas flow in porous media at low pressures

Comparison of techniques for electrowinning tungsten from scheelite

Structural deformation of Green River oil shale as it relates to in situ retorting

Fragmentation of concrete with hydraulic jets

Preparation of thorium-magnesium alloys and pure thorium by magnesium reduction of thorium tetrachloride

Recovery of cadmium and nickel from scrap batteries

Recovery of copper from converter slags by flotation

Analysis of uranium distribution in diamond-drill cores :section 23 mine, Ambrosia Lake area, Grants District, New Mexico

Improved cupric ammonium carbonate leaching of copper scrap

Thermodynamic properties of four crystalline sodium borates

Gravity flow of powder in a lunar environment (in two parts).

Removing sulfur dioxide from flue gases :regeneration rates for alkalized alumina

Gravity flow of powder in a lunar environment (in two parts).

Vapor-liquid equilibria data for the helium-nitrogen system as predicted by the Van der Waals equation of state

In situ strain orientations :a comparison of three measuring techniques

Bureau of Mines research;a summary of significant results in mining, metallurgy and mineral economics.

Offshore petroleum studies;composition of the offshore U.S. petroleum industry and estimated costs of producing petroleum in the Gulf of Mexico

Selected list of Bureau of Mines publications on petroleum and natural gas, 1961-70 :supplement to Information circular 8240

Strippable lignite reserves of North Dakota :location, tonnage, and characteristics of lignite and overburden

Bureau of Mines energy program, 1971

Methane emission from U.S. coal mines :a survey

Computer analysis of seismic refraction data

Use of char to improve physical quality of coke from Allen (Colorado) coal

Percussive drilling with independent rotation

Oilfields and crude oil characteristics :Cook Inlet Basin, Alaska

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