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OFR-8-88 Supervisory Management Selection And DevelopmentBy Grant R. Brown
This report presents the results of a study examining the relationship between supervisor characteristics and performance in underground coal mines, The specific objectives of the research include; do
Jan 1, 1987
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Failure Mechanisms in Thermo-Mechanical Fatigue of DS Superalloy Rene 80By E. O. Abrokwah
Directionally solidified (DS) Rene 80 Superalloy was tested in thermo-mechanical fatigue (TMF) over the temperature range 500-900°C and plastic strain levels from 0.2 to 0.8% using a DSI Gleeble therm
Jan 1, 2011
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Why it Should be Done the Metric WayBy HOWARD RICHARDS
THE dollar was, selected as the unit of currency by the Congress of the United States of America on Apr. 2, 1792. This "Dollar" currency is so much more convenient than the older British currency that
Jan 1, 1921
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Correlation Of Vertical Magnetic Surveying To The Alabama Piedmont GeologyBy Thornton L. Neathery
Vertical magnetic surveys have been made over about 3, 150 miles of the crystalline area of east-central Alabama. A contour map (100-gamma interval) showing regional magnetic anomalies has been prepar
Jan 1, 1972
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The end of horizontal zinc retorting in the United StatesBy J. E. Dutrizac
"The end of an era in zinc metallurgy took place on July 31, 1976 when the horizontal retort furnaces of the National Zinc Company in Bartlesville, Oklahoma were permanently shut down (1) . For more t
Jan 1, 1999
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Sustainable Manufacture: A Dilemma or Window of Opportunity?By M. H. Attia
The concept of sustainable development has been evolved into a working framework for sustainable manufacturing, in which the environmental requirements are introduced into product development at the d
Jan 1, 2006
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Electro-Biochemical Reactor (EBR) Technology for Selenium Removal from British Columbia’s Coal-Mining Waste WatersBy A. J. Martin, M. J. Peoples, D. J. Adams, A. Opara
"The weathering of coal mine waste rock releases iron, calcium, sulfate and associated trace elements like selenium (Se). Nitrogen species are also found in association with coal-mining drainages main
Jan 1, 2015
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Bulletin 232 Manual for Oil and Gas OperationsBy T. E. Swigart, C. E. Beecher
The Federal Government, as the largest lessor of oil and gas lands in the United States, is vitally interested in the conservation of those resources. This manual has been prepared at the direction of
Jan 1, 1923
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Une mine à ciel ouvert et le déménagement d?un quartier : l?expérience de la Corporation minière Osisko à Malartic, QuébecBy Julien Rivard
Au printemps 2011, la Corporation minière Osisko met en production le gisement Canadian Malartic, qui devient la plus importante mine d?or à ciel ouvert au Canada. Pour lui faire place, elle a déménag
May 1, 2011
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Nickel Resources, Production and UtilizationBy E. S. Moore
ALTHOUGH nickel was in use in alloys long before the Christian era, the metal was not discovered until 1751, when Cronstedt recognized it in niccolite from Sweden. The Chinese apparently used a nickel
Jan 1, 1932
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Mining Geology - Nickel Resources, Production and UtilizationBy E. S. Moore
Although nickel was in use in alloys long before the Christian era, the metal was not discovered until 1751, when Cronstedt recognized it in niccolite from Sweden. The Chinese apparently used a nickel
Jan 1, 1932
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1978 Raw Nonfuel Mineral ProductionThe value of raw nonfuel mineral materials production totaled an estimated $19.7 billion in 1978. The record 1978 value exceeded by 13 percent the 1977 value of $17.5 billion. This raw mineral output
Jan 1, 1979
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Diplomat MineBy J. Keith Haddock
"Introduction The Luscar company, Forestburg Collieries Ltd., operates the Diplomat Mine located 14 km south of Forestburg, Alberta. Production is now at a declining rate from the 1 million tonnes ach
Jan 1, 1985
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Can Silver Come Back?By W. F. Boericke
WORLD production of silver in 1929 totaled 256 million ounces. In 1928 production was 258 million ounces, and in 1927, 254 million ounces. With an actual decrease in the amount of silver produced last
Jan 1, 1930
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Paragénesis y distribución de minerales y metales en la veta principal de San CristóbalBy C. M. Wright
Siendo la veta principal San Cristóbal, una de las estructuras que atraviesan el Anticlinal Chumpe en la provincia de Yauli, su explotación ha sido limitada a las rocas volcánicas y filitas en el flan
Aug 20, 1963
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Chapter III- Continued - Part 6.-Porcupine-Ramore Area - Structural Relations of the Porcupine Ore DepositsBy W. Roy Dunbar
"The Porcupine area is in northern Ontario at the intersection of N. Lat. 48° 30' and 81° W. Long. It is 125 miles due north of the Sudbury nickel range. Practically all the mineral production of this
Jan 1, 1954
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Institute of Metals Division - Annealing Twins and Coincidence Site Boundaries in Zone-Refined AluminumBy K. T. Aust
The occurrence of annealing twins in high-purity aluminum resulted in the formation of grain boundaries having orientation relationships which correspond to a high density of coincidence sites. The re
Jan 1, 1962
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Influence of material properties on high-temperature zone reactions in sintering of iron oreBy L. T. Matthews, C. E. Loo, R. P. Williams
The behaviour of iron ores and fluxes in the high temperature zone of a sintering bed is extremely complex. Following a review of current knowledge, an attempt is made to define relevant terminology t
Jan 4, 1992
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OFR-36-74 Analysis Of Large Scale Non-Coal Underground Mining Methods - Section 1 ? Summary And Major Conclusions - 1.1 Background And General Information - 1.1.1 Purpose Of Underground Mines StudyThe request for proposal from the U.S. Bureau of Mines outlined the purpose of this study in the following terms. "High grade near surface deposits are largely a matter of history. Most of the cur
Jan 1, 1974
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Issues Of The 1970's: Government Over-RegulationBy Eugene Guccione
The US mining industry today is fighting for its existence. We are plagued by the shortage of materials, of equipment, of fuels, of capital, of manpower. If we solve those shortages, we are then frust
Jan 1, 1975