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|
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He 20. 7131 : 8459
|
|
|
|
Three coal mine gob degasification studies using surface foreholes and a bleeder system [electronic r
HE 20.7131:8459
;
Axe Federal Documents Online:Available
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ElectronicResource GovDoc
|
1980
|
|
Three coal mine gob degasification studies using surface foreholes and a bleeder system [electronic r
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1980
|
|
|
He 20. 7131 : 8473
|
|
|
|
Face ventilation measurement with sulfur hexafluoride (SFb6s) [electronic resource] / by Robert P. Vi
HE 20.7131:8473
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1980
|
|
Face ventilation measurement with sulfur hexafluoride (SFb6s) [electronic resource] / by Robert P. Vi
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1980
|
|
|
He 20. 7131 : 8515
|
|
|
|
Direct method determination of the gas content of coal [electronic resource] : procedures and results
HE 20.7131:8515
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
Direct method determination of the gas content of coal [electronic resource] : procedures and results
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
|
He 20. 7131 : 8525
|
|
|
|
Assessing the methane hazard of gassy coals in storage silos [electronic resource] / by John C. LaSco
HE 20.7131:8525
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
Assessing the methane hazard of gassy coals in storage silos [electronic resource] / by John C. LaSco
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
|
He 20. 7131 : 8567
|
|
|
|
Evaluation of the seismic system for locating trapped miners [electronic resource] / by John Durkin a
HE 20.7131:8567
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
Evaluation of the seismic system for locating trapped miners [electronic resource] / by John Durkin a
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
|
He 20. 7131 : 8577
|
|
|
|
Methane drainage study using an underground pipeline, Marianna mine 58 [electronic resource] / by L.J
HE 20.7131:8577
;
Axe Federal Documents Online:Available
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ElectronicResource GovDoc
|
1981
|
|
Methane drainage study using an underground pipeline, Marianna mine 58 [electronic resource] / by L.J
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1981
|
|
|
He 20. 7131 : 8640
|
|
|
|
Drilling a horizontal coalbed methane drainage system from a directional surface borehole [electronic
HE 20.7131:8640
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
Drilling a horizontal coalbed methane drainage system from a directional surface borehole [electronic
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
|
He 20. 7131 : 8644
|
|
|
|
Underground gob gas drainage during longwall mining [electronic resource] / Steven J. Schatzel, Geral
HE 20.7131:8644
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
Underground gob gas drainage during longwall mining [electronic resource] / Steven J. Schatzel, Geral
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
|
He 20. 7131 : 8665
|
|
|
|
Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling
HE 20.7131:8665
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
|
He 20. 7131 : 8669
|
|
|
|
Degasification of the Mary Lee coalbed, Brookwood, Ala. [electronic resource] / by John H. Perry, Leo
HE 20.7131:8669
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
Degasification of the Mary Lee coalbed, Brookwood, Ala. [electronic resource] / by John H. Perry, Leo
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
|
He 20. 7131 : 8675
|
|
|
|
Degasification study from an air shaft in the Beckley coalbed [electronic resource] / by Tobias W. Go
HE 20.7131:8675
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
Degasification study from an air shaft in the Beckley coalbed [electronic resource] / by Tobias W. Go
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
|
He 20. 7131 : 8702
|
|
|
|
Electromagnetic surface fields due to a magnetic dipole buried in a three-layered earth [electronic r
HE 20.7131:8702
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
Electromagnetic surface fields due to a magnetic dipole buried in a three-layered earth [electronic r
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1982
|
|
|
He 20. 7131 : 8828
|
|
|
|
Vertical magnetic noise in the voice frequency band within and above coal mines [electronic resource]
HE 20.7131:8828
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1983
|
|
Vertical magnetic noise in the voice frequency band within and above coal mines [electronic resource]
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1983
|
|
|
He 20. 7131 : 8838
|
|
|
|
Water in fusion : an effective and economical longwall dust control / by Joseph Cervik, Albert Sainat
HE 20.7131:8838
;
Axe Federal Documents Online:Available
|
|
1983
|
|
Water in fusion : an effective and economical longwall dust control / by Joseph Cervik, Albert Sainat
Axe Federal Documents Online:Available
|
|
1983
|
|
|
He 20. 7131 : 8841
|
|
|
|
Control of longwall gob gas with cross-measure boreholes (upper Kittanning coalbed) [electronic resou
HE 20.7131:8841
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1983
|
|
Control of longwall gob gas with cross-measure boreholes (upper Kittanning coalbed) [electronic resou
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1983
|
|
|
He 20. 7131 : 8843
|
|
|
|
Use of a sodium silicate gel grout for plugging horizontal methane-drainage holes [electronic resourc
HE 20.7131:8843
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
Use of a sodium silicate gel grout for plugging horizontal methane-drainage holes [electronic resourc
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8844
|
|
|
|
A short-range locator system for detecting trapped miners [electronic resource] / by William E. Webb
HE 20.7131:8844
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
A short-range locator system for detecting trapped miners [electronic resource] / by William E. Webb
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8861
|
|
|
|
Assessment of methane hazards in an anomalous zone of a Gulf Coast salt dome [electronic resource] /
HE 20.7131:8861
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
Assessment of methane hazards in an anomalous zone of a Gulf Coast salt dome [electronic resource] /
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8869
|
|
|
|
Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic trans
HE 20.7131:8869
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic trans
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8879
|
|
|
|
Influence of overlying strata on methane emissions in a northern West Virginia coal mine [electronic
HE 20.7131:8879
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
Influence of overlying strata on methane emissions in a northern West Virginia coal mine [electronic
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8880
|
|
|
|
Simulation of methane flows in noncoal mines [electronic resource] / by Andrew B. Cecala and Edward D
HE 20.7131:8880
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
Simulation of methane flows in noncoal mines [electronic resource] / by Andrew B. Cecala and Edward D
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8886
|
|
|
|
New bag nozzle to reduce dust from fluidized air bag machines [electronic resource] / by Andrew B. Ce
HE 20.7131:8886
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
New bag nozzle to reduce dust from fluidized air bag machines [electronic resource] / by Andrew B. Ce
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1984
|
|
|
He 20. 7131 : 8888
|
|
|
|
Overlap probability for short-period-delay detonators used in underground coal mining [electronic res
HE 20.7131:8888
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
Overlap probability for short-period-delay detonators used in underground coal mining [electronic res
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
|
He 20. 7131 : 8985
|
|
|
|
Methane control on longwalls with cross-measure boreholes (Lower Kittanning coalbed) [electronic reso
HE 20.7131:8985
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
Methane control on longwalls with cross-measure boreholes (Lower Kittanning coalbed) [electronic reso
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
|
He 20. 7131 : 8986
|
|
|
|
Measuring formation pressures and the degree of gas drainage in a large coalbed gas drainage field [e
HE 20.7131:8986
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
Measuring formation pressures and the degree of gas drainage in a large coalbed gas drainage field [e
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
|
He 20. 7131 : 8987
|
|
|
|
Reducing hazards in underground coal mines through the recognition and delineation of coalbed discont
HE 20.7131:8987
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
Reducing hazards in underground coal mines through the recognition and delineation of coalbed discont
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1985
|
|
|
He 20. 7131 : 9013
|
|
|
|
Comparisons between cross-measure boreholes and surface gob holes [electronic resource] / by T.W. Goo
HE 20.7131:9013
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1986
|
|
Comparisons between cross-measure boreholes and surface gob holes [electronic resource] / by T.W. Goo
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1986
|
|
|
He 20. 7131 : 9060
|
|
|
|
Clay veins [electronic resource] : their occurrence, characteristics, and support / by Frank E. Chase
HE 20.7131:9060
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1987
|
|
Clay veins [electronic resource] : their occurrence, characteristics, and support / by Frank E. Chase
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1987
|
|
|
He 20. 7131 : 9063
|
|
|
|
Methane contents of oil shale from the Piceance Basin, CO [electronic resource] / by S.J. Schatzel ..
HE 20.7131:9063
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1987
|
|
Methane contents of oil shale from the Piceance Basin, CO [electronic resource] / by S.J. Schatzel ..
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1987
|
|
|
He 20. 7131 : 9143
|
|
|
|
Protective structures for low-coal shuttle car operator [electronic resource] / John R. Bartels, Augu
HE 20.7131:9143
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1987
|
|
Protective structures for low-coal shuttle car operator [electronic resource] / John R. Bartels, Augu
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1987
|
|
|
He 20. 7131 : 9177
|
|
|
|
Horizontal trajectories of rotary-drilled holes [electronic resource] / by Tobias W. Goodman and Jose
HE 20.7131:9177
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1988
|
|
Horizontal trajectories of rotary-drilled holes [electronic resource] / by Tobias W. Goodman and Jose
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1988
|
|
|
He 20. 7131 : 9301
|
|
|
|
Field verification of load transfer mechanics of fully grouted roof bolts [electronic resource] / by
HE 20.7131:9301
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1990
|
|
Field verification of load transfer mechanics of fully grouted roof bolts [electronic resource] / by
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1990
|
|
|
He 20. 7131 : 9407
|
|
|
|
Remote fiber-optic methane monitor [electronic resource] / by T.H. Dubaniewicz, Jr., and J.E. Chilton
HE 20.7131:9407
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1992
|
|
Remote fiber-optic methane monitor [electronic resource] / by T.H. Dubaniewicz, Jr., and J.E. Chilton
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1992
|
|
|
He 20. 7131 : 9409
|
|
|
|
Calculation of vertical stress exerted by topographic features [electronic resource] / by Valois R. S
HE 20.7131:9409
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1992
|
|
Calculation of vertical stress exerted by topographic features [electronic resource] / by Valois R. S
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1992
|
|
|
He 20. 7131 : 9415
|
|
|
|
Cause of floor self-heatings in an underground coal mine [electronic resource] / by Y. Miron, C.P. La
HE 20.7131:9415
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1992
|
|
Cause of floor self-heatings in an underground coal mine [electronic resource] / by Y. Miron, C.P. La
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1992
|
|
|
He 20. 7131 : 9499
|
|
|
|
Self-contained self-rescuer field evaluation [electronic resource] : fourth-phase results / by N. Kyr
HE 20.7131:9499
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1994
|
|
Self-contained self-rescuer field evaluation [electronic resource] : fourth-phase results / by N. Kyr
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1994
|
|
|
He 20. 7131 : 9500
|
|
|
|
Evaluation of alternative placement of longwall gob gas ventholes for optimum performance [electronic
HE 20.7131:9500
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1994
|
|
Evaluation of alternative placement of longwall gob gas ventholes for optimum performance [electronic
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1994
|
|
|
He 20. 7131 : 9527
|
|
|
|
Effective hazard recognition training using a latent-image, three-dimensional slide simulation exerci
HE 20.7131:9527
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1995
|
|
Effective hazard recognition training using a latent-image, three-dimensional slide simulation exerci
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1995
|
|
|
He 20. 7131 : 9585
|
|
|
|
Gel sealants for the mitigation of spontaneous heatings in coal mines [electronic resource] / by Yael
HE 20.7131:9585
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1995
|
|
Gel sealants for the mitigation of spontaneous heatings in coal mines [electronic resource] / by Yael
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1995
|
|
|
He 20. 7131 : 9599
|
|
|
|
Environmental impacts of cemented mine waste backfill [electronic resource] / R.L. Levens, A.D. Marcy
HE 20.7131:9599
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
Environmental impacts of cemented mine waste backfill [electronic resource] / R.L. Levens, A.D. Marcy
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
|
He 20. 7131 : 9625
|
|
|
|
Using ground penetrating radar for roof hazard detection in underground mines [electronic resource] /
HE 20.7131:9625
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
Using ground penetrating radar for roof hazard detection in underground mines [electronic resource] /
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
|
He 20. 7131 : 9626
|
|
|
|
A 20-liter furnace test method to determine the combustion gas toxicity on conveyer belts [electronic
HE 20.7131:9626
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
A 20-liter furnace test method to determine the combustion gas toxicity on conveyer belts [electronic
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
|
He 20. 7131 : 9632
|
|
|
|
Secondary explosion hazards during blasting in oil shale and sulfide ore mines [electronic resource]
HE 20.7131:9632
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1995
|
|
Secondary explosion hazards during blasting in oil shale and sulfide ore mines [electronic resource]
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1995
|
|
|
He 20. 7131 : 9634
|
|
|
|
Evaluation of polymer construction material and water trap designs for underground coal mine seals [e
HE 20.7131:9634
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
Evaluation of polymer construction material and water trap designs for underground coal mine seals [e
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
|
He 20. 7131 : 9635
|
|
|
|
Self-contained self-rescuer field evaluation [electronic resource] : fifth-phase results / by Nichola
HE 20.7131:9635
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
Self-contained self-rescuer field evaluation [electronic resource] : fifth-phase results / by Nichola
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1996
|
|
|
He 20. 7131 : 9642
|
|
|
|
Accurate navigation and control of continuous mining machines for coal mining [electronic resource] /
HE 20.7131:9642
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1997
|
|
Accurate navigation and control of continuous mining machines for coal mining [electronic resource] /
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1997
|
|
|
He 20. 7131 : 9643
|
|
|
|
Full-scale testing of the float dust deposition meter [electronic resource] / Robert A. Cortese and H
HE 20.7131:9643
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
Full-scale testing of the float dust deposition meter [electronic resource] / Robert A. Cortese and H
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
|
He 20. 7131 : 9644
|
|
|
|
Model for the structure of round-strand wire ropes [electronic resource] / Richard C. Wang, Anthony
HE 20.7131:9644
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
Model for the structure of round-strand wire ropes [electronic resource] / Richard C. Wang, Anthony
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
|
He 20. 7131 : 9645
|
|
|
|
Investigation of coal properties and airborne respirable dust generation [electronic resource] / John
HE 20.7131:9645
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
Investigation of coal properties and airborne respirable dust generation [electronic resource] / John
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
|
He 20. 7131 : 9646
|
|
|
|
Concluding evaluation of a continuous haulage guidance sensor [electronic resource] / John J. Sammarc
HE 20.7131:9646
;
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
|
Concluding evaluation of a continuous haulage guidance sensor [electronic resource] / John J. Sammarc
Axe Federal Documents Online:Available
|
ElectronicResource GovDoc
|
1998
|
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