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An in-situ diffusion parameter for the Pittsburgh and Pocahontas No. 3 coalbeds

The methane migration and storage characteristics of the Pittsburgh, Pocahontas No. 3, and Oklahoma Hartshorne coalbeds

Methane migration characteristics of the Pocahontas No. 3 coalbed

Methane diffusion parameters for sized coal particles :a measuring apparatus and some preliminary results

The direct method of determining methane content of coalbeds for ventilation design

Ventilation eddy zones at a model coal mine working face

Statistical analysis of methane concentration fluctuations produced by incomplete mixing of methane and air at a model coal mine working face

Tracer gas as an aid in mine ventilation analysis

Peak methane concentrations during coal mining:an analysis

Using sulfur hexafluoride as a gaseous tracer to study ventilation systems in mines

Building stoppings in mines with large openings

Two-phase flow in coalbeds

Replacing brattice cloth at coal faces with air curtains and diffuser fans,a preliminary study

Parachute stopping :preliminary experiments

Methane buildup hazards caused by dust scrubber recirculation at coal mine working faces,a preliminary estimate

A spiral sequential sampler for air and liquids :preliminary results

An evaluation of emergency inflatable stoppings for use in metal mine fire rescue and recovery operations

Three coal mine ventilation studies using sulfur hexafluoride tracer gas

Using inflatable stoppings during production in noncoal mines

Self-sealing brattice for coal mine rescue and recovery

Longwall gob degasification with surface ventilation boreholes above the Lower Kittanning coalbed

Brattice window method for measuring leakage through mine stoppings

Methane absorption in oil shale and its potential mine hazard

Hydraulic stimulation of a surface borehole for gob degasification

Jet fan effectiveness as measured with SF₆ tracer gas

Methane accumulations in coal mine roof cavities

Methane emissions from gassy coals in storage silos

Bureau of Mines damage-resistant brattice

Tracer gas method for measuring leakage through mine stoppings

Correction factors for low-velocity airflow measurements in mines

Forecasting methane hazards in metal and nonmetal mines

Sideboard device for improved face ventilation in coal mines

Water spray vent tube cooler for hot stopes :a preliminary report

Three coal mine gob degasification studies using surface boreholes and a bleeder system

Face ventilation measurement with sulfur hexafluoride (SF₆)

Assessing the methane hazard of gassy coals in storage silos

Reducing dust at longwall shearers by confining the dust cloud to the face

How to evaluate longwall dust sources with gravimetric personal samplers

Determining face methane-liberation patterns during longwall mining

Improved shearer-clearer system for double-drum shearers on longwall faces

Exhaust ventilation of deep cuts using a continuous-mining machine

Evaluating ventilation parameters of three coal mine gobs

Impact of using auxiliary fans on coal mine ventilation efficiency and cost


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