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An analysis of 6x19 classification wire hoist rope

Personal Author:

Lowery, R. R. (Ronald R.); Anderson, G. L. (Grant Lamont), 1933-;

Corporate Author:

United States. Bureau of Mines.

Published:

1983

Series:

Report of investigations (United States. Bureau of Mines) ; 8817

Description:

"An analysis of three 1 1/4-in-diam manufactured wire ropes of 6x19 classification was done to identify and describe reference conditions of new rope. Reference condition is of value when examining tested or retired ropes. Measurements of strand and ...

File Type:

[PDF - 16.29 MB]
Maximizing The Ventilation Of Large-Opening Mines

Personal Author:

Grau, R. H., III; Krog, R. B.; Robertson, S. B.;

Published:

0/1/1900

Description:

The National Institute for Occupational Safety and Health (NIOSH) has conducted research to improve the ventilation of large-opening mines. Large-opening mine ventilation is unique for the following reasons: (1) it is challenging to keep airflow velo...

File Type:

[PDF - 223.87 KB]
The character of five selected LANDSAT lineaments in southwestern Pennsylvania

Personal Author:

Moebs, Noel N.; Sames, Gary P.;

Corporate Author:

United States. Bureau of Mines.

Published:

1997

Series:

Report of investigations (United States. Bureau of Mines) ; 9104

Description:

"Five LANDSAT lineaments in the coal mining region of southwestern Pennsylvania were investigated by the Bureau of Mines to determine their geologic character, relation to subsurface conditions, and the means of discriminating one from another. The i...

File Type:

[PDF - 13.59 MB]
Determining corrosion rates in industrial ore grinding environments

Personal Author:

Isaacson, A. E. (Alan E.); McDonough, P. J. (Patrick J.); Maysilles, J. H. (James H.);

Corporate Author:

United States. Bureau of Mines.

Published:

1988

Series:

Report of investigations (United States. Bureau of Mines) ; 9166

Description:

"Bureau of Mines researchers developed and tested equipment to measure corrosion rates on a commercial-scale mill. Bench-scale experiments were designed for duplicating ore grinding conditions closely enough so that realistic rate determinations coul...

File Type:

[PDF - 11.41 MB]
Field measurement and finite-element modeling of circular and rectangular shaft shapes in the Coeur d'Alene mining district, Idaho

Personal Author:

Beus, Michael J.; Chan, Samuel S. M.;

Corporate Author:

United States. Bureau of Mines.

Published:

1985

Series:

Report of investigations (United States. Bureau of Mines) ; 8972

Description:

"This Bureau of Mines report describes a field experiment involving the sinking two test shafts to directly compare the deformational behavior of circular and rectangular shapes. Results show that the circular shape is less sensitive to geologic disc...

File Type:

[PDF - 10.39 MB]
Heat-resistant steels containing 8 pct Cr

Personal Author:

Larson, D. E. (Darrell E.)

Corporate Author:

United States. Bureau of Mines.

Published:

1989

Series:

Report of investigations (United States. Bureau of Mines) ; 9255

Description:

"The U.S. Bureau of Mines investigated fe-base alloys containing 8 pct cr with ni, al, and si additions as substitutes for standard aisi type 304 stainless steel (ss) in high-temperature oxidizing applications. The objective of this study was to redu...

File Type:

[PDF - 6.21 MB]
Practical Application Of A Partial Cab To Reduce The A-Weighted Sound Level At The Operator’s Station On Surface Drill Rigs

Personal Author:

Yantek, D. S.; Jurovcik, P., Jr.; Ingram, D. K.;

Published:

0/1/1900

Description:

The National Institute for Occupational Safety and Health (NIOSH) identified hearing loss as the most common job-related disease in the United States in its 1996 National Occupational Research Agenda. Previous studies by NIOSH have shown that operato...

File Type:

[PDF - 1.16 MB]
NIOSH Research In Coal Dust And Explosions

Personal Author:

Gürtunca, R.; Cashdollar, K.; Volkwein, J.; Rupprecht, E.;

Published:

0/1/1900

Description:

The National Institute for Occupational Safety and Health (NIOSH) mining research program at the Pittsburgh Research Laboratory (PRL), includes the areas of coal mine dust control and monitoring, and explosion prevention. One very important project a...

File Type:

[PDF - 597.00 KB]
Timing and duration of subsidence due to longwall mining

Personal Author:

Jeran, P. W.

Corporate Author:

United States. Bureau of Mines.

Published:

1995

Series:

Report of investigations (United States. Bureau of Mines) ; 9552

Description:

"Subsidence data gathered by the U.S. Bureau of Mines over a series of longwall panels in the Pittsburgh Coalbed were studied to obtain insight as to the role of time in the subsidence process. It was found that subsidence began essentially with unde...

File Type:

[PDF - 1.14 MB]
Determination of tungsten and associated elements in natural brines and related process solutions by inductively compled plasma spectrometry

Personal Author:

Jones, M. M. (Miriam M.); Whitehead, A. B. (Alton B.);

Corporate Author:

United States. Bureau of Mines.

Published:

1985

Series:

Report of investigations (United States. Bureau of Mines) ; 8945

Description:

"Natural brines are potential domestic resources of minerals. The brines of Searles Lake, California, for example, contain an estimated one-fourth of our current reserve of tungsten. A key to Bureau of Mines research to recover this critical mineral ...

File Type:

[PDF - 591.30 KB]
Technical services for mine communications research : transmit antennas for portable VLF to MF wireless mine communications

Personal Author:

Lagace, Robert L.

Corporate Author:

Arthur D. Little, Inc.; United States. Bureau of Mines.;

Published:

May 1977

Series:

Open file report (United States. Bureau of Mines) ; 92-78

Description:

"An investigation was made of the feasibility of developing compact transmit antennas and/or other means to efficiently couple very low frequency (VLF) to medium frequency (MF) band radio energy between portable wireless communication units in coal m...

File Type:

[PDF - 5.20 MB]
Recovery of manganese from steel plant slag by carbamate leaching

Personal Author:

McIntosh, Synthia N.; Baglin, E. G. (Elizabeth G.);

Corporate Author:

United States. Bureau of Mines.

Published:

1992

Series:

Report of investigations (United States. Bureau of Mines) ; 9400

Description:

"The U.S. Bureau of Mines investigated the feasibility of using ammonium carbamate (NH2CO2NH4) leaching to recovery manganese from steel plant slag. This investigation showed that treatment of the slag in hydrogen prior to leaching enhanced manganese...

File Type:

[PDF - 1.96 MB]
Dewatering of talc slurry

Personal Author:

Hood, Gwendolyn D.; Smelley, Annie G.; Scheiner, Bernard J.;

Corporate Author:

United States. Bureau of Mines.

Published:

1983

Series:

Report of investigations (United States. Bureau of Mines) ; 8803

Description:

"The Bureau of Mines investigated techniques for dewatering slurries from talc-processing operations to improve water reclamation and produce dewatered solids suitable for disposal. Various flocculating reagents were evaluated, and a nonionic polyacr...

File Type:

[PDF - 5.50 MB]
Method factors for anemometer measurement at pipe outlets

Personal Author:

Garcia, F. (Fred); Cervik, Joseph.;

Corporate Author:

United States. Bureau of Mines.

Published:

1986

Series:

Report of investigations (United States. Bureau of Mines) ; 9061

Description:

"Gob holes are routinely used by the mining industry to vent methane from gobs and to prevent it from entering the mine ventilation system. In some cases, flows from gob holes are measured by centering an anemometer on the end of a discharge pipe. Th...

File Type:

[PDF - 1.02 MB]
Electromagnetic propagation in low coal mines at medium frequencies

Personal Author:

Cory, Terry S.

Corporate Author:

United States. Bureau of Mines.; Rockwell International. Collins Communications Switching Systems Division.; United States. Bureau of Mines. Office of the Assistant Director--Mining.;

Published:

12 June 1978

Series:

Open file report (United States. Bureau of Mines) ; 63-82

Description:

"This report covers magnetic field strength measurements versus range and frequency in low to medium coal mines. Both quasi-conductor- free and conductor-proximity areas were investigated. The program covered five mines, four seams, six measurement s...

File Type:

[PDF - 2.47 MB]
Analysis of sampling variance from certain platinum and palladium deposits in Alaska

Personal Author:

Barker, James C.; Thomas, Dana L.; Hawkins, D. B. (Daniel Ballou), 1934-;

Corporate Author:

United States. Bureau of Mines.

Published:

1985

Series:

Report of investigations (United States. Bureau of Mines) ; 8948.

Description:

"The analytical variability encountered when sampling for platinum- group metals (PGM) was statistically evaluated during a 1983 study by the Bureau of Mines and the University of Alaska. Sampling procedures were designed to systematically incorporat...

File Type:

[PDF - 13.46 MB]
Laboratory investigation of enclosed cab filtration system performance factors

Personal Author:

Organiscak, J. A.; Cecala, A. B.;

Published:

1/1/2008

Description:

Enclosed cabs are a primary means of reducing the silica dust exposure of equipment operators at surface mines. The National Institute for Occupational Safety and Health (NIOSH) has investigated various factor effects on enclosed cab air filtration s...

File Type:

[PDF - 782.78 KB]
Characteristics of the top five most frequent injuries in United States mining operations, 2003-2007 - Introduction

Personal Author:

Coleman, P. J.; Brune, J.; Martini, L.;

Published:

1/1/2010

Description:

Research in the field of mining safety and health in the United States plays an important part in protecting the lives of miners. The National Institute for Occupational Safety and Health (NIOSH) Mining Program conducts surveillance, studies and deve...

File Type:

[PDF - 574.66 KB]
Influence of electrode material on spark ignition probability

Personal Author:

Peterson, Jeffrey Shawn

Corporate Author:

United States. Bureau of Mines.

Published:

1992

Series:

Report of investigations (United States. Bureau of Mines) ; 9416

Description:

"The testing procedures of the U.S. Mine Safety and Health Administration specify that intrinsic safety acceptance tests be conducted using a standard tungsten-cadmium electrode configuration in the breakflash apparatus. However, in realistic mining ...

File Type:

[PDF - 2.61 MB]
Purification of zirconyl sulfate by solvent extraction

Personal Author:

MacDonald, D. J. (David J.); Henry, H. G. (Helen G.); Bauer, D. J. (Donald J.);

Corporate Author:

United States. Bureau of Mines.

Published:

1984

Series:

Report of investigations (United States. Bureau of Mines) ; 8849

Description:

"The Bureau of Mines has conducted bench-scale investigations leading to the design of an integrated process for producing reactor-grade zirconium oxide (zro2) from zircon sand, which avoids the air pollution, water pollution, fire hazard, and odor p...

File Type:

[PDF - 1.47 MB]

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