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Rare Earths in Review - A Decade of Decline & Deception"How Wall Street Darling Molycorp Undermined the U.S. Economy, Degraded our National Security and Distorted the Global Economic Balance and How These Falsehoods Continue to be Promoted Even Today INTR
Jan 1, 2017
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RI 2651 Factors Retarding Transmission Of Radio Signals Underground, And Some Further Experiments And ConclusionsBy J. J. Jakosky, D. H. Zellers
"IntroductionThe Bureau of Mines has been conducting experiments in underground communication during a period of several years, and a brief summary of what has been done is as follows:During 1919-1920
Nov 1, 1924
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The Future of Applied Research in CanadaBy W. M. Armstrong
This paper compares research on development efforts in various countries, consideration being given to gross expenditures, manpower involved, source of funds, sector of performance and type of activit
Jan 1, 1968
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Large Dozer Stripping Case Studies (7008e633-217e-4a63-afa1-05ec422363cb)By M. J. Hrebar
In the summer of 1990, a study was conducted to document large tractor (i.e., Caterpillar Dl1N) utilization in surface coal mining. The tractors were found to be utilized as primary production machine
Jan 1, 1992
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Discount rates and risk assessment in mineral project evaluationsBy Lawrence Devon Smith
"The concept of risk is well established in the mining industry. It is acknowledged when estimates of reserves are expressed as proven or probable, when mining and metallurgical recoveries are applied
Jan 1, 2003
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Principles For Selection and Risk Assessment of New Technologies: A Case Study for Ironmaking Process Technology SelectionBy Y. Gordon
ABSTRACT A methodology based on a two-stage approach was developed for process technology selection. The first stage includes evaluation of available technologies, followed by shortlisting the best te
Jan 1, 2014
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RI 6572 Investigation of Beryllium Deposits in the Northern Virgin Mountains of Clark County, Nev., and Mohave County, ArizBy George H. Holmes
Beryllium deposits in the northern Virgin Mountains , Clark County , Nev . , and Mohave County , Ariz . , about 70 miles northeast of Las Vegas , were investigated by the Bureau of Mines . The investi
Jan 1, 1964
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OFR-49(3)-79 Construction, Inspection And Maintenance Of Mine Haulage Track, Volume 3 - Inspection HandbookBy Edward G. Cunney
Track in underground bituminous coal mines was investigated and technology was taken from other industries in order to obtain information on conditions that impair the safety and efficiency of the tra
Jan 1, 1977
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Project Controls for Large Mining Projects - The Client's PerspectiveControl of construction projects is the responsibility of the Project Leaders who have the authority to make decisions. Project Controls cost and scheduling systems provide the Leaders with timely inf
Jan 1, 1993
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From Dream to Discovery ? or From Resources to ReservesBy Côme Carbonneau
The ten -year case history of La Société Québécoise d'Exploration Minière (SOQUEM) is reviewed under the headings of the company's raison d'être, objectives, policies, structure and fin
Jan 1, 1978
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Recent Developments in Preconcentration Using Dense Media SeparationBy W. Tse, D. Wong
Dense medium separation (DMS) is one of several preconcentration methods used for early waste rejection from run of mine ores at relatively coarse particle sizes prior to additional milling and benefi
Jan 1, 2014
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RI 7836 Polymeric Materials for Underground SupportBy J. C. Franklin
The Spokane Mining Research Center of the Federal Bureau of Mines is placing major emphasis on chemical stabilization as part of the ground support program. Development of polymeric material suitable
Jan 1, 1974
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England's Latest in Ore-Crushing MachineryBy AIME AIME
AMONG the recent mining and metallurgical developments in England great interest has been shown in the development of an iron-ore field covering 26,0.00 acres in Northamptonshire, containing 500,¬000,
Jan 1, 1934
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OFR-148-81 Airborne Dust From Taconite TailingsBy D. H. Yardley
A major purpose of this contract was to evaluate a variety of dust suppressants to determine their effectiveness in mitigating dust from taconite tailings. During the course of the investigation taili
Jan 1, 1980
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Thermal Runaway Of Lto And Nca Lithium-ion Batteries In A Sealed Enclosure Containing Methane - SME Annual Meeting 2023By C. Brown, N. Rayyan, T. H. Dubaniewicz
Lithium-Ion batteries (LIBs) have the potential to go into thermal runaway which introduces a new ignition source in hazardous environments such as gassy underground mines that may contain methane in
Feb 1, 2023
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RI 4801 Estimate Of Known Recoverable Reserves Of Coking Coal In Armstrong County, Pa.By James J. Dowd
The investigation to evaluate the reserves of coking coal in the United States suitable for the manufacture of metallurgical coke is being made by the Bureau of Mines in three parts: (1) To estimate k
Jan 1, 1951
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Extractive Metallurgy Division - Condensed-Phase Relations in the System Co-W-O at High Temperature (1000° to 1700°C)By Margaret G. Scroger, Luke L. Y. Chang, Bert Phillips
Using the sealed-system technique, isothermal sections at 1000°, 1400°, and 1700°C for the system Co-W-O hare been determined. The equilibrium data were obtained by microscopic and X-ray diffractio
Jan 1, 1965
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Effect of CaO on the Slag-Matte Thermochemistry in Nickel Sulfide ConverterBy Peter Hayes, Evgueni Jak, Taufiq Hidayat, David Grimsey, Denis Shishin
"An integrated nickel flash smelter is operated with Peirce-Smith converters at the Kalgoorlie Nickel Smelter. To improve the partitioning of arsenic between slag waste and matte product, an option to
Jan 1, 2017
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Ecology And The Mining IndustryBy Robert W. Holliday
Natural resources are the reservoir from which society draws its material sustenance. Although there is a growing awareness of the need for aesthetic resources such as space for recreation and natural
Jan 1, 1968