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

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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Self-contained self-rescuer field evaluation fourth-phase results / by Kyriazi, Nicholas, United States. Bureau of Mines

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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Environmental impacts of cemented mine waste backfill by Levens, R. L., United States. Bureau of Mines

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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A short-range locator system for detecting trapped miners by United States. Bureau of Mines

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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Protective structures for low-coal shuttle car operator by Bartels, John R., United States. Bureau of Mines

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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The composition of coalbed gas by Kim, Ann G., United States. Bureau of Mines

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, 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

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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The direct method of determining methane content of coalbeds for ventilation design by Kissell, Fred N., United States. Bureau of Mines

“…U.S. Dept. of the Interior, Bureau of Mines,…”
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