Self-contained self-rescuer field evaluation fifth-phase results / by Kyriazi, Nicholas, United States. Bureau of Mines

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Estimation of shear strength using fractals as a measure of rock fracture roughness by McWilliams, P. C. (Paul C.)

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Self-contained self-rescuer field evaluation fourth-phase results / by Kyriazi, Nicholas, United States. Bureau of Mines

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New bag nozzle to reduce dust from fluidized air bag machines by Cecala, Andrew B., United States. Bureau of Mines

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Overlap probability for short-period-delay detonators used in underground coal mining by Bajpayee, T. S., United States. Bureau of Mines

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Cause of floor self-heatings in an underground coal mine by Miron, Yael, United States. Bureau of Mines

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Calculation of vertical stress exerted by topographic features by Shea-Albin, V. R., United States. Bureau of Mines

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Environmental impacts of cemented mine waste backfill by Levens, R. L., United States. Bureau of Mines

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Field verification of load transfer mechanics of fully grouted roof bolts by Signer, S. P. (Stephen P.), United States. Bureau of Mines

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Methods of determining the orientations of bedrock fracture systems in southwestern Pennsylvania and northern West Virginia by Bench, B. M., United States. Bureau of Mines

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Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic transmission tests by Durkin, John, United States. Bureau of Mines

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A short-range locator system for detecting trapped miners by United States. Bureau of Mines

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Vertical magnetic noise in the voice frequency band within and above coal mines by Durkin, John, United States. Bureau of Mines

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Electromagnetic surface fields due to a magnetic dipole buried in a three-layered earth by Shope, S. M. (Steven M.), United States. Bureau of Mines

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Evaluation of the seismic system for locating trapped miners by Durkin, John, United States. Bureau of Mines

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Effective hazard recognition training using a latent-image, three-dimensional slide simulation exercise by Barrett, Edward A., United States. Bureau of Mines

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Protective structures for low-coal shuttle car operator by Bartels, John R., United States. Bureau of Mines

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The composition of coalbed gas by Kim, Ann G., United States. Bureau of Mines

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Assessment of methane hazards in an anomalous zone of a Gulf Coast salt dome by United States. Bureau of Mines

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Assessing the methane hazard of gassy coals in storage silos by LaScola, John C., United States. Bureau of Mines

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