TRAIL - Technical Report Archive and Image Library

Investigation of dust sources and control technology for longwall plow operations

Helium resources of the United States, 1987

Phosphate availability and supply :a minerals availability appraisal

Mine drainage and surface mine reclamation.

Effect of load rate on wood crib behavior

Solubilities of bromide salts of aluminum, cobalt, lead, manganese, potassium, and sodium when sparged with hydrogen bromide

Loading characteristics of pillars in multiple-seam mining operations

Preparation of ammonium paratungstate from a sodium tungstate-sodium chloride phase

Potentially critical materials

Issues & needs of the mining industry :a Bureau of Mines perspective

Intrinsically safe 5-V, 4-A rechargeable power supply

Cleaning, disinfecting, and sterilizing self-contained self-rescuer mouthpiece assemblies used in hands-on training

The talc industry--an overview

Development and testing of a pneumatic scraper blade for conveyor belt cleaning

Abrasive-enhanced water-jet drill for hard rocks

Continuous flotation testing to recover a bulk sulfide concentrate from Missouri lead ore tailings

Effect of metal impurities on the adsorption of gold by activated carbon in cyanide solutions

Effect of natural flake graphite and carbon fiber additions on the high-temperature properties of dolomite-carbon refractories

Effect of sulfide minerals on ferrous alloy grinding media corrosion

Impact of water sprays on scrubber ventilation effectiveness

Hillseam geology and roof instability near outcrop in eastern Kentucky drift mines

Collimated abrasive water-jet behavior

Physical and computer modeling of roof bolt systems

Recovery of lead and silver from plumbojarosite by hydrothermal sulfidation and chloride leaching

Computer modeling of continuous miner cutting systems for dust generation

Underground coal mine track inspection and cleaning vehicle

Effects of abandoned multiple seam workings on a longwall in Virginia

Assessment of experimental longwall recovery rooms for increasing productivity and expediting equipment removal operations

An improved method for determining helium in water

Relationships between annulus thickness and the integrity of resin-grouted roof bolts

X-ray fluorescence analysis of superalloy leach liquors using a thin-film technique

Heat-resistant steels containing 8 pct Cr

Characterization of the Sheep Creek Pb-Zn-Ag-Sn prospect, north-central Alaska Range

Utilization of papermill sludges as binders for iron ore concentrate

Alkaline oxidative leaching of gold-bearing arsenopyrite ores

Determining the relative toxicity and smoke obscuration of combustion products of mine combustibles

Leakage across a bituminous coal mine barrier

Recovery of principal metal values from waste hydroprocessing catalysts

Ultra-high-purity silicon for infrared detectors :a materials perspective

Use of an in-seam tester to determine effects of bit type on primary dust generation

Control of diesel particulate matter in underground coal mines

Effects of Al additions on sulfidation resistance of some Fe-Cr-Ni alloys

Yielding steel posts

Improved method for determination of helium-4 in helium-3 by mass spectrometry

Separation and recovery of metals from zinc-treated superalloy scrap

Rotary drilling techniques used in the Beckley coalbed

Field evaluation of three longwall pillar systems in a Kentucky coal mine

Primary gas toxicities and smoke particle characteristics during combustion of mine ventilation ducts :development of a test parameter

A simplex-method-based algorithm for determining the source location of microseismic events

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