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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

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

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

A spiral sequential sampler for air and liquids :preliminary results

Three coal mine ventilation studies using sulfur hexafluoride tracer gas

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

Brattice window method for measuring leakage through mine stoppings

Hydraulic stimulation of a surface borehole for gob degasification

Jet fan effectiveness as measured with SF₆ tracer gas

Bureau of Mines damage-resistant brattice

Tracer gas method for measuring leakage through mine stoppings

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

Evaluating ventilation parameters of three coal mine gobs

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


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