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Noise controls for vibrating screen mechanisms - SME Transactions 2011
By D. S. Yantek, L. A. Alcorn, M. J. Lowe, H. E. Camargo
U.S. National Institute for Occupational Safety and Health (NIOSH) studies show that 43.5% of surveyed coal preparation plant workers had noise exposures exceeding the U.S. Mine Safety and Health Admi
Jan 1, 2011
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Institute of Metals Division - Diffusion in the Uranium-Niobium (Columbium) System
By R. E. Ogilvie, N. L. Peterson
Diffi-lsion measurements were conducted at all compositims in the bcc solid solution of the U-Nb system employing incremental couples at composition intemals of 10 at. pct. Diffusion coefficients were
Jan 1, 1963
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Chemistry And Physics Of Taconite Agglomeration – Part III: Advantages Of Developing Bentonite Fibers
By S. K. Kawatra, S. J. Ripke
During 1998, 62 million tons of iron ore pellets valued at $1.7 billion were shipped from U.S. mines. These pellets are the primary source for domestic iron and steel production. During pelletization,
Jan 1, 2001
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Creep properties and energy evolution characteristics of weakly cemented rock under step loading
By C X. Zhang, W K. Ru, S C. Hu
To study the creep properties and the energy evolution characteristics of the weakly cemented rock (WCR) in western China, the creep deformation damage law of weakly cemented mudstone (WCM) under grad
Nov 29, 2022
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Industrial Minerals Are Big Business
By Charles H. Kline
Industrial minerals are the Cinderella of the mining I industry. Often considered as just dirt by traditional hard-rock miners and oil drillers, these products nonetheless comprise the second largest
Jan 1, 1970
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The Effectiveness Of The Monotube Pile Taper At The Highway 280 Pile Uplift Test Site ? Introduction
By Samuel J. Kosa
The Monotube is a uniformly tapered high-strength steel shell pile manufactured for friction pile applications. The Monotube pile was developed in the early 1920's in Canton, Ohio. Its first comm
Jan 1, 1993
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State Statistics – Texas
Lignite constitutes approximately 97 percent of the near-surface coal resources in Texas. The most significant bituminous resources are in the north-central and southern parts of the state. Coal reser
Jan 1, 1992
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IC 9257 International Intercalibration And Intercomparison Program Radon Daughter Measurements: Exercise At The Twilight Mine, Uravan, CO
By W. E. Cooper
The International Intercalibration and Intercomparison Program (HIP), consisting of several selected laboratories from four countries, held a radon progeny intercomparison measurement at the U.S. Bure
Jan 1, 1990
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Oxygen Balanced Emulsion-ANFO Blends for Use in Flammable Atmospheres
By Michael J. Sapko, Eric S. Weiss
The U.S. Bureau of Mines has been conducting research on the secondary explosion hazards associated with the mining of oil shale under gassy mine conditions. Explosive incendivity tests have been cond
Jan 1, 1990
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Died In Service
Bailey, Lewis Newton, Master Engineer, Senior Grade, 4th Regiment, U. S. Engineers, Headquarters Company, died of pneumonia at Camp Merritt, N. J., on April 30, 1.918. Baird, Louis, Lieut., Royal Fie
Jan 8, 1918
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Tunneling By Mole
By Robert G. Pinkerton
Boyles Bros. Drilling Co. and Gibbons and Reed Company, both of Salt Lake City, Utah, have successfully combined into two joint ventures on the San Juan-Chama project of the U. S. Bureau of Reclamatio
Jan 1, 1967
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The North American Gold Mines: Operating Costs
By Anthony W. Garson
Good morning, ladies and gentlemen: It is a pleasure to be here this morning as a representative of Dean Witter Reynolds; one of the foremost international investment firms in North America. My co
Jan 1, 1984
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The Relationship Between Cartel Activity And Commodity Exchange Markets ? Introduction
By Brian J. Gorva
The key objective of forming a cartel is to increase profits to members of the cartel by taking the following action: a) control output; and b) control price. However, while attempting to obtain monop
Jan 1, 1983
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Commercial Movement of Zinc and Copper
By Salinger, Herbert
WITH the large amount of metallurgical re- search work now being done and the constant effort of the engineer to effect economies of operation, I think it is a safe prediction that the next few years
Jan 1, 1928
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Plentiful Supply of Nonmetallic Minerals Aids War Effort
By Paul M. Tyler
FOR the same reason that water is not missed until the well runs dry, the roles of many industrial minerals in wartime are often overlooked. In contrast to the growing shortages of many metals, our su
Jan 1, 1942
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The Preparation of Coal (3d80a8d6-3762-412b-870a-d165227cb7ae)
By J. B. Morrow
Methods of Coal Preparation Fundamentally, the object of coal preparation is to increase, economically, the value of a fuel by making it more suitable to the uses of the consumer. This can be accomp
Jan 1, 1931
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Understanding Coal Ash Quality Parameters
By E. C. Winegartner
In producing and selling coal, the coal company is faced with many different parameters by which the quality of its product is evaluated. One type, which we choose to call the economic parameters, inc
Jan 1, 1975
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Reasonable Utilization of Primary Sylvinite?Production of Potassium Sulphate or Potassium Magnesium Sulphate Fertilizer
By H. R. Zhang
In this paper two optional production processes are presented for reasonable utilization of primary sylvinite in Qinghai province, China. The two kinds of products as chlorine-free potash fertilizers
Jan 1, 2014
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Hydrothermal Sulfidation of Plumbojarosite for Recovery of Lead and Silver
By K. P. V. Lei
The U.S. Bureau of Mines investigated a hydrothermal sulfidation procedure to recover lead and silver from plumbojarosite. The plumbojarosite, generated during pressure-oxidative leaching of zinc conc
Jan 1, 1990
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TBM Tunneling on the Yucca Mountain Project
By James P. Morris, William H. Hansmire
The U. S. Department of Energy's (DOE) Yucca Mountain Project (YMP) is a scientific endeavor to determine the suitability of Yucca Mountain for the first long term, high level nuclear waste repos
Jan 1, 1995