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Part III – March 1969 - Papers- A Little Light on Material Requirements for Electronic Pickup TubesBy E. I. Gordon
The electronic pickup tube is the image-to-video signal-converter or transducer in tele vision-like systems. Images may relate to visible light or IR excitation as in conventional TV systems, X-ray ex
Jan 1, 1970
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High-Performance Emulsion-Based BoosterBy Soseol Kim
A high-performance Emulsion-based booster explosives has been developed that can be used as a booster for bulk explosives. Currently, Pentolite booster, which is mainly used as a booster for bulk expl
Feb 6, 2023
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Development of the Largest Sodium Sulphate Deposit in CanadaBy P. G. Rueffel
"Natural deposits of sodium sulphate are the result of normal geological processes. They are world-wide in occurrence and are found in depressions in arid and semi-arid regions. Primarily, the sodium
Jan 1, 1968
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The Value of Incremental Performance Improvement in Concentrators—How to Secure and Quantify Small GainsBy O. Norman Lotter
There are many scales of innovation in the pursuit of concentrator performance improvement, including paradigm change, inventive change and incremental change. All are important, but the last is low r
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Reclamation of Coal Mine Wastes in New BrunswickThe major factors limiting the establishing of vegetation on the shale and sandstone wastes at Minto are high exchange acidity and low pH (shale pH 4-5, sandstone pH < 4). In the first revegetation pr
Jan 1, 1977
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RI 6322 Acid Leaching of Beryllium Ore From Spor Mountain, UtahBy D. W. Bridges, L. Crocker, R. O. Dannenberg
About 95 pct of the beryllium was dissolved from most ore samples by agitation leaching with 600 lb of H2SO4 per ton of ore for 24 hours at 65 ° C and 35 pct solids . Leach slurries generally were vis
Jan 1, 1963
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Electrical Dewatering of Phosphate TailingBy E. C. Houston
The phosphate ores mined in middle Tennessee typically consist of granular rock phosphate particles disseminated in a clayey matrix. In the TVA plant near Columbia, Tenn., the phosphate ore is mined,
Jan 1, 1949
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Meeting Of Canadian Mining InstituteA regular general meeting of the Canadian Mining Institute will be held in Vancouver, B. C., on Nov. 26-28. The Council extends a cordial invitation to all members of the American Institute of Mining
Jan 11, 1919
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Fomento minero a través del financiamientoBy David Ballón Vera
El presente estudio describe la importancia del financiamiento en la industria minera como herramienta de difusión a través de dos condiciones: la primera, es que esta se adecúe a las características
Nov 20, 1978
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A New Process for the Decontamination of Industrial Effluent Containing Cadmium CationsBy I. Gaballah
Cadmium is toxic to plant, animals and humans. The council directive of the European Communities No 8315 13lEEC has fixed an upper limit of 200 ppb for the release of cadmium in industrial effluents.
Jan 1, 1994
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Feed Dilution Based Design of a Thickener for Refuse of a Coal Preparation PlantBy S. Banisi
Thickening is the most widely applied dewatering technique in mineral processing. Thickeners are used to increase the concentration of suspension by sedimentation, accompanied by the formation of a cl
Jan 1, 2014
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Frac sand production decreases; Oil and gas oversupply leads to slowdownBy Mark J. Zdunczyk
"Frac sand is industrial silica sand much like glass, foundry, filtration and blast sand. The sand must meet certain specifications set forth by the industry that consumes the product. The production
Jul 1, 2016
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Geology of the Sustut Copper Deposit in B.C. (2d42b1e7-1c94-47a9-b4c1-62e26e60d034)By G. Harper
"AbstractThe Suetut. Copper deposit, 230 miles northwest of Prince George, B.C., was discovered in August of 1971. Subsequent exploration has included 56,417 feet of surface diamond drilling in 139 ho
Jan 1, 1977
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RI 4803 Estimate Of Known Recoverable Reserves Of Coking Coal In Westmoreland 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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A 3D Discrete Event Simulation Model of a Truck-shovel Network SystemBy W Zeng, D Walker, D Cai, E Baafi
"The efficiency of the truck-shovel haulage system is significantly influenced by the truck fleet size. A discrete event simulation model with 3D animation has been developed to estimate the productiv
Nov 15, 2016
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Melbourne Main Sewer Project – Construction Phase – Soft Ground Tunnelling in the Yarra DeltaBy P Clark
This paper discusses the challenges, solutions and lessons learnt as tunnelling work continues on the Melbourne Main Sewer Replacement (MMSR) project.The MMSR project is a $220 million dollar project
Mar 8, 2011
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RI 8783 - Copper-Manganese-Base Silverless Brazing SystemsBy V. R. Miller
The Bureau of Mines conducted research on substitute brazing filler alloys with properties similar to those of silver filler alloys in an effort to conserve silver and reduce hazards from cadmium emis
Jan 1, 1983
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Preparation and Mechanism of Calcium Carbonate/Titanium Dioxide Composites by Mechano-chemical MethodBy H. Ding
Calcium carbonate/Titanium dioxide composite, characterized by coating TiO2 on the surface of CaCO3 particles, is an important substitute for titanium dioxide. This paper studies preparation method of
Jan 1, 2014
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Ground Control And Safety Considerations During Longwall RecoveryBy William J. Gray
The Roof Control Division of MSHA's Pittsburgh Safety and Health Technology Center has been conducting a program to evaluate methods employed by the U.S. coal mining industry during recovery of l
Jan 1, 1993
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Data analytics and machine learning methods applied to underground coalmine roof convergence dataBy I Canbulat, J Emery, L Yao and C Zhang
This paper documents a process of data analytics and machine learning applied to coalmine roof convergence data. It follows a publication documenting the formation of the database. For each set of ana
Nov 29, 2022