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Retrofitting Bulldozer Reduces Operator's Noise Exposure - ObjectiveReduce permanent hearing losses to bulldozer operators. Approach Two types of noise control packages have been developed, that can be readily fabricated and installed into bulldozers by mine per
Jan 1, 1981
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Technology News - No. 486 - Floor Heaters Can Increase Operator's Dust Exposure in Enclosed CabsTo reduce equipment operator exposure to respirable dust in enclosed cabs by examining the effectiveness of retrofitting air pressurization and filtration systems on existing cabs.
Jan 1, 2001
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Thigh-Calf And Heel-Gluteus Contact Forces In High Flexion (Experimental Results) - IntroductionBy Jonisha P. Pollard
In restricted vertical working heights such as low-seam coal mines, workers are forced to assume kneeling or squatting postures to perform work. These postures are associated
Jan 1, 2009
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Acknowledgments – References – Glossary - AppendixThis report was prepared by Jacob Tolsma and Arnold N. Johnson of the Uniroya 1 Research Center, Wayne, New Jersey. The valuable assistance and suggestions of the project officers, Mr. Ronald D. H
Jan 1, 1972
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PersonnelThe faculty, graduate students, and post-doctoral researchers are an integral part of the Generic Mineral Technology Center for Respirable Dust. More than fifty (50) scientists, engineers, and medical
Aug 31, 1989
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Ground Bed Design And MeasurementBy Wils L. Cooley, Herman W. Hill
'The electrical behavior of ground beds is often quite different from what would be expected based on experience with electric circuits. An explanation for this unique behavior is given, through
Jan 1, 1979
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RI 7175 Amino Acids As Retaining Agents For Separation Of Rare-Earth Elements On Ion-Exchange ResinBy J. O. Winget
Amino acids were investigated in conjunction with rare-earth separation by ion exchange to determine whether they can be utilized effectively as retaining agents for metals separation using ethylenedi
Jan 1, 1968
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Prices (f8099d14-7d89-45a2-bfd2-d63012b53173)By Charles L. Kimbell
The series summarizing the prices of the major nonferrous metals on the stock exchanges of the United States and the United Kingdom has been continued this year in tables 23 and 24. Time constraints h
Jan 1, 1993
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Mine Power Systems Research – 1. Trailing CablesBy Staff
This Bureau of Mines report is devoted to descriptions of investigations pertaining to underground mine trailing cables, their handling, splicing, and the use of couplers.
Jan 1, 1979
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Minor NonmetalsBy D. O. Kennedy
THIS CHAPTER on minor nonmetals covers greensand, meerschaum, mineral wool, and wollastonite. Mineral wool was by far the most valuable material among these minor nonmetals reported in the United Stat
Jan 1, 1958
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ConclusionsBy Rudolf E. Greuer, Linneas W. Laage, Xinton Chang
The PC version of the program MFIRE contains many improvements and enhancements previously unavailable for the modeling of mine ventilation networks and the interaction of fires with mine ventilation
Jan 1, 1990
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APPENDIX C - Channel Sampling Data and Hardgrove Grindability Test DataBy Thomas V. Falkie, R. Venkataramani
Table 15. Summary of Physical Characteristics of Coal and Shale from Channel Samples. Table
Jan 1, 1972
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Comparison Of Methane Concentrations At A Simulated Coal Mine Face During BoltingBy Jeanne A. Zimmer, Charles D. Taylor, Edward D. Thimons
Strategies for monitoring methane levels during roof bolting in an extended cut entry were evaluated. Testing was conducted at the Pittsburgh Research Laboratory’s methane test gallery. Operating cond
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Appendix C - Program Input ControlsBy R. V. Ramani, A. S. C. Owili-eger
System Size N,NX Number of blocks in x-direction M,NY Number of blocks in y-direction NTIMES Number of systems to be simulated LENGTH Length of medium WIDTH Width of medium THICK Thickness of me
Jan 1, 1974
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New Safer Truck Ladders Are Also Crash Resistant - ObjectiveReduce injuries caused by slips and falls from large haulage vehicles. Approach Replace the flexible-cable or chain-type lower ladder steps, with steps that extend closer to the ground and do no
Jan 1, 1980
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Bulletin 80 A Primer on Explosives for Metal Miners and QuarrymenBy Clarence Hall, Charles E. Munroe
In accidents resulting from the use of explosives in metal mines and quarries in the United States more than 130 men were killed and 250 seriously injured during the calendar year 1913. More- over, an
Jan 1, 1915