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RI 5486 Influence Of Borehole Freespace On Ignition Of Firedamp By Explosives - SummaryBy R. L. Grant
An investigation was undertaken by the Bureau of Mines to determine the relationship between freespace and ignition probability for borehole shots. A series of experiments was concluded which covered
Jan 1, 1959
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Technical Papers and Notes - Institute of Metals Division - The Deformation of Single Crystals of AluminumBy J. N. Roberts, K. V. Gow
In a recent review of the field of plastic deforrnation of metal single crystals, Maddin and chenl indicated the need for systematic investigations of the crystallography of the slip process with spec
Jan 1, 1959
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RI 5480 John Burdette Barite-Fluorite Deposit Garrard County, Ky. ? SummaryBy Kenneth M. Earl
The purpose of this investigation was to obtain subsurface information on the John Burdette barite-fluorite deposit, Garrard County, Ky. The deposit was intersected in each of five inclined diamon
Jan 1, 1959
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Coal Cleaning Plant Design For Minimum Operating Labor ? IntroductionBy John D. Price
The solution to the problem expressed in the title of this paper might well be condensed into one word, AUTOMATON, But if I were to stop there, even though most of you might applaud, I am afraid that
Jan 1, 1959
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RI 5538 Fluorescent X-Ray Spectrographic Analysis: Studies Of Low-Energy K, L, And M Spectral Lines ? SummaryBy William J. Campbell
These investigations were undertaken as part of a program to determine the optimum X-ray spectral lines to use for analyzing the wide variety of samples received by the X-ray Laboratory. Theoretical c
Jan 1, 1959
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Technical Note - Beneficiation Of Autunitic OresBy William C. Aitkenhead, John A. Jaekel
Uranium deposits in the Spokane Indian Reservation, as well as those around Mt. Spokane, are essentially low grade, much of the ore containing less than 0.2 pct U808. The Mining Experiment Station of
Jan 1, 1959
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Ammonium Nitrate Blasting AgentsBy Louis W. Towle
A brief history of the use of Ammonium Nitrate in explosives and blasting agents is given. Methods of manufacture and physical properties of the various types of Ammonium Nitrate are given with partic
Jan 1, 1959
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Geology - Lineament Tectonics and Some Ore Districts of the SouthwestBy Evans B. Mayo
This study examines the structural framework of the Southwest for evidence of the four principal trends of lineament tectonics. It attempts to classify their intersections and compares the positions o
Jan 1, 1959
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RI 5459 Volatilization Of Tin Chloride From Bolivian Slimes ? SummaryBy K. K. Kershner
The purpose of this investigation was to develop methods, on a laboratory scale, for recovering tin from Bolivian metallurgical slimes. Petrographic and chemical analyses were made of slime ore fracti
Jan 1, 1959
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Technical Papers and Notes - Extractive Metallurgy Division - The Improved Wheaton-Najarian Vacuum CondenserBy H. K. Najarian
This paper describes recent development work on the Wheaton-Najarian Vacuum Condenser for Zinc at Josephtown Zinc Smelter, wherein, to dissipate the heat of condensation, the "airlift" action of gases
Jan 1, 1959
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RI 5436 Some Thermodynamic Properties Of Fluorphlogopite Mica ? Introduction And SummaryBy K. K. Kelley
Synthetic fluorphlogopite mica (KMg3AlSi3010F2) is a relatively new product developed at the Norris (Tenn.) Station of the Bureau of Mines, Thermodynamic data have applications both in the production
Jan 1, 1959
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RI 5467 Duplicability Studies Of The BM-AGA Test Method And Correlation With Industrial Coking - IntroductionBy J. G. Walters
In a survey of the coking properties of United States coals, the Bureau of Mines has accumulated data on more than 500 coals and blends tested by the Bureau of Mines-American Gas Association (BM-AGA)
Jan 1, 1959
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Drilling Mud Filtration and Its Effect on the Electrical Resistivity of -Porous MediaBy H. T. Kennedy, D. L. Flock
"The project described in this pa-per was undertaken to provide a more thorough understanding of the effect of contamination by drilling fluids on the electrical properties of porous systems. The basi
Jan 1, 1959
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Technical Papers and Notes - Institute of Metals Division - The Effect of Oxygen on the Impact Transition of Iodide-TitaniumBy E. H. Rennhack
THE presence of sufficient quantities of the inter- stitial elements, carbon, oxygen, and nitrogen is known to decrease sienificantly the room-temperature impact resistance of titanium. Hydrogen does
Jan 1, 1959
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IC 7934 Coke Plants In The United States On December 31, 1958 ? Summary And IntroductionBy Joseph A. DeCarlo
This publication presents statistical data on oven-and beehive-coke plants in the United States. Information on the carbonizing capacity of the coke industry is important because of the close relation
Jan 1, 1959
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Problems And Developments In Mineral BeneficiationBy Norman Weiss
The purpose of this paper is to relate progress in the engineering field called Minerals Beneficiation to undergraduate and graduate education in our colleges and universities. So mach has been writte
Jan 1, 1959
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IC 7903 Mining Methods And Costs, Baguio Gold Mine, Baguio Gold Mining Co., Baguio, Luzon, Philippine Islands ? Introduction And SummaryBy A. A. Bakewell
This information circular, which describes mining methods and practices at the Baguio Gold Mining Co., Philippine Islands, is one of a series being prepared by the Bureau of Mines on mining methods, p
Jan 1, 1959
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Discussion - Institute of Metals DivisionH. H. Bleakney (Dept. of Mines and Technical Surveys, Ottawa, Canada)— The work of Dr. Machlin and his colleagues at Columbia University is so scholarly that one hesitates to take issue with them. Nev
Jan 1, 1959
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Discussion of Papers Published Prior to 1958 - Mineralizing Solutions That Carry and Deposit Iron and SulfurBy B. S. Butler
A. D. Mutch (Falconbridge Nickel Mines Ltd., Ona-ping, Ontario)—This contribution is prompted by the fact that the writer has recently published an article'!' which has in part the same gene
Jan 1, 1959
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Presidential Address, 1959A President, soon after he is appointed, sees looming ahead of him the Presidential Address; and in something approaching despair wonders what he can possibly talk about which might hold the interest
Jan 1, 1959