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Perception Thresholds For Lateral Vibration At The Hand, Seat, And Foot - IntroductionBy Miyuki Morioka, Michael J. Griffin
Discomfort, annoyance, or interference with activities due to exposure to vibration is only expected if the vibration exceeds the threshold for the perception of vibration. When there is more than one
Jan 6, 2006
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IC 7656 Some Factors Affecting And Suggested Ways For Improving Coal Mine Ventilation, With Particular Reference To Mines In Illinois, Indiana, And Western Kentucky ? SummaryBy C. A. Herbert
This paper sets forth the hazards of accumulations of explosive mixtures of methane and air due to inadequate ventilation, the causes of which are discussed as follows: 1. Lack of well-maintained a
Jan 1, 1953
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IC 9231 Advanced Guidelines For Performance Testing Of Two-Legged Longwall ShieldsBy Thomas M. Barczak
This U.S. Bureau of Mines report is intended to assist coal mine operators in the selection of longwall supports by providing advanced guidelines for performance testing and standardized test document
Jan 1, 1989
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IC 6149 Mining Methods Of The Tennessee Copper Company, Ducktown, Tenn. ? IntroductionBy C. H. McNaughton
The Tennessee Copper Co. operated two mines in the Ducktown district during 1928. The Burra Burra mine is much the larger operation and is the chief source of the ore smelted and treated in the, compa
Jan 1, 1929
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RI 5030 Gasification Of Pulverized Coal With Steam And Oxygen At Atmospheric Pressure ? Summary And ConclusionsBy G. R. Strimbeck
This is a report on experimental work on development of a gasification process operating at near atmospheric pressures and using finely pulverized coal entrained in oxygen and steam. The gasifier
Jan 1, 1954
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RI 6835 Preparation Of Submicron Tungsten Powder By Hydrogen Reduction Of Tungsten HexachlorideBy J. E. Tress
The Bureau of Mines prepared submicron tungsten powder by reducing tungsten hexachloride with hydrogen. The particle diameters of the resulting tungsten powders ranged from 0.015 to 0.046 micron. With
Jan 1, 1966
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RI 4103 Argentena Zinc-Lead Mine, Clark Co. Nev.By Robert W. Geehan
"INTRODUCTION A preliminary examination of the Argentena mine was made in 'January 1945 by an engineer of the Bureau, who recommended investigation by diamond drilling. The Bureau conducted a core-dri
Jul 1, 1947
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RI 6309 Hazards in Using Liquid Hydrogen in Bubble ChambersBy Michael G. Zabetakis, Aldo L. Furno, Henry E. Perlee
The Bureau of Mines conducted an experimental study with liquid and gaseous hydrogen to determine the hazards associated with the use of liquid hydrogen as an ionizing particle detector in bubble cham
Jan 1, 1963
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IC 7417 Annual Report of Research and Technologic Work on Coal, Fiscal Year 1946By P. M. Ambrose, A. C. Fieldner
This , the 11th annual report of research and technologic work conducted by the Bureau of Mines on coal and coal products , is issued following the closing of the Bureau's war work on fuels and contai
Jul 1, 1947
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IC 7938 Open-Pit Copper Mining Methods At New Cornelia Branch, Phelps Dodge Corp., Pima County, Ariz. ? Summary And IntroductionBy W. R. Hardwick
This information circular describes mining methods and practices at New Cornelia Branch, Phelps Dodge Corp., Ajo, Ariz. It is one of a series being prepared by the Bureau of Mines on mining methods, p
Jan 1, 1960
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IC 7232 The Rare Alkalis In New England ? ForewordBy Frank L. Hess
"New England" and "granite" if not synonymous are at least associated terms. Where there are granites that are not deeply eroded there are usually pegmatites, the most erratic of rocks, and of them Ne
Jan 1, 1943
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Underground evaluation of coated flight bars for a continuous mining machineBy Ellisworth R. Spencer, Lynn A. Alcorn, Peter G. Kovalchik, Adam K. Smith
Noise induced hearing loss (NIHL) is the most common occupational disease among workers in the mining industry. Previous studies conducted by the National Institute for Occupational Safety and Health
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RI 9279 Yielding Steel PostsBy J. P. Dunford
This U.S. Bureau of Mines report describes the development of a yielding steel post for underground mine support. The report covers concept development, laboratory tests, modifications, and field eval
Jan 1, 1989
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IC 9424 Mobile Mine Equipment Maintenance Safety: A Review Of U.S. Bureau Of Mines ResearchBy Joan K. Kuenzi
This Information Circular brings together for consideration recommendations from U.S. Bureau of Mines research in the area of surface mine mobile equipment maintenance for the period 1982 through 1991
Jan 1, 1995
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RI 9645 - Investigation Of Coal Properties And Airborne Respirable Dust GenerationBy Steven J. Page, John A. Organiscak
Laboratory crushing experiments were conducted on a range of low- to high-volatile bituminous coals to investigate the various factors influencing airborne respirable dust (ARD) generation. This rese
Jan 10, 1998
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Reduction of Fire Hazards on Large Mining EquipmentBy Maria I. De Rosa
Analysis of mining equipment fires from 1990 through 1999 reveals that there were 340 large mining equipment fires, resulting in 72 injuries and five fatalities. Many of the fires resulted in the loss
Jan 1, 2008
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OFR-18-77 Microseismic Roof Fall Warning System - 1.0 IntroductionBy A. J. Farstad
The current emphasis on energy needs in the United State sand abroad has placed an increased demand on the coal mining industry. The United States is fortunate to have abundant coal reserves. However,
Jan 1, 1976
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RI 6723 Use Of A Diphenyl Ether Calorimeter In Determining The Heat Of Fusion Of IronBy J. P. Morris
A diphenyl ether calorimeter for measuring high-temperature heat contents of ferrous alloys and iron-and steelmaking slags was constructed and calibrated with specimens of molybdenum, alumina, and pla
Jan 1, 1966
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Reference Center"IntroductionThe combined library facilities of the five universities in the Generic Technology Center for Respirable Dust, The Pennsylvania State University, West Virginia University, University of M
Aug 31, 1989
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IC 9140 Natural And Synthetic ZeolitesBy Robert A. Clifton
This Bureau of Mines report discusses the mineralogy of zeolites, the properties that make them commercially valuable, the conditions of formation of both natural and synthetic zeolites, and present a
Jan 1, 1987