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Comparison Of Empirical, Analytical, And Numerical Methods Of Pillar Design And The Development Of A Site Specific Pillar Formula
By Vincent A. Scovazzo
Many accepted and useful methods have been developed and used for pillar design. Each method has its own particular strengths and weaknesses. Three methods addressed in this paper are; empirical, anal
Jan 1, 1995
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Remarks on the Precipitation of Gold in a Reverberatory Hearth
By R. W. Raymond
WISH to call the attention of the Institute to a curious subject, brought to my notice last summer by Mr. Begger, the accomplished metallurgist of the smelting-works of the Boston and Colorado Company
Jan 1, 1873
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Pittsburgh Paper - Remarks on the Precipitation of Gold in a Reverberatory Hearth
By R. W. Raymond
I wish to call the attention of the Institute to a curious subject, brought to my notice last summer by Mr. Begger, the accomplished metallurgist of the smelting-works of the Boston and Colorado Compa
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Rock Bursts - A Symposium (60f4f2fa-16ca-42d3-a35b-d369fc39531a)
By Philip B. Bucky
CONTENTS [PACEPACE r. What Is a Rock Burst?2 4. How Can Rock Bursts Be Predicted? . 35 Jack Spalding2Jack Spalding35 A. F. Robertson 2, 5A. F. Robertson35 W. R. Crane 2A. B. Yates and P. J. She
Jan 1, 1942
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IC 8217 Bibliography Of Investment And Operating Costs For Chemical And Petroleum Plants, January-December 1963 ? Introduction
By Sidney Katell
This report covers the period January 1963 through December 1963; it is a continuation of the series that began with the publication of Information Circular 7516 in October 1949. Also, it is the fifth
Jan 1, 1964
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RI 4866 Synthetic Liquid Fuels, Annual Rpt. 1951, Pt. 2 Oil Shale
By BUREAU OF MINES
This report is submitted in accordance with the provisions or une Synthetic Liquid Fuels Act of April 5, 1944 (30 U.S.C. 321-325, as amended), which require that: "The Secretary of the Interior shall
Jul 1, 1952
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Underground Mining: Challenges And Solutions In Subsidence Perspective (d1803fca-596b-4cc5-8f04-4e52c00599a3)
By S. K. Singh
To meet increasing demand of coal, underground mining is largely being replaced by the exploitation at deeper horizons and with greater complexities. The exploitation-proposition may be below not-to-b
Jan 1, 1999
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The Re-emergence of Resin in Pulp with Strong Base Resins as a Low Cost, Technically Viable Process for the Recovery of Uranium
By Chris Fleming, John R. Goode, James Brown
"Data will be produced from two uranium feasibility studies that were conducted in 2008, both involving uranium recovery from leached slurry by resin-in-pulp (RIP) with strong base resins. Excellent m
Jan 1, 2010
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A Test Of Predictive Numerical Models To Simulate Entry Design Changes Using Field Measurements From A Longwall Mining Gateroad
By Jennifer Riefenberg
Research efforts by the U.S. Bureau of Mines include running a series of displacement-discontinuity, boundary-element models to simulate the gateroad design at an underground coal mine in northwestern
Jan 1, 1993
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Bulletin 141 Yearbook of the Bureau of Mines 1916
By VAN. H. MANNING
Probably no year in the history of the United States showed greater progress in the mineral industries than 1916. Although this progress was undoubtedly stimulated by the war in Europe, which caused e
Jan 1, 1917
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OFR-108-81 Development Of A Portable Gas Analyzer For In-Mine Personnel Monitoring
By Edward A. McClatchie
A novel nondispersive electro-optical gas analyzer has been designed, fabricated and tested. The instrument is based on a pressure modulated absorption technique. Key features of this new gas analy
Jan 1, 1980
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Markets for Western Coal
By H. Stutchbury
Alberta is labouring, and has laboured, under serious difficulties in the marketing of ?her coals, due to a number of conditions which now obtain, but all of which appear capable of solution, and the
Jan 1, 1925
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IC 8217 Bibliography Of Investment And Operating Costs For Chemical And Petroleum Plants, January-December 1963 ? Introduction (81b7a3cb-fd4f-4515-811a-aaa82051b124)
By Sidney Katell
This report covers the period January 1963 through December 1963; it is a continuation of the series that began with the publication of Information Circular 7516 in October 1949. Also, it is the fifth
Jan 1, 1964
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Introducing a new age of highly effective automatic explosion suppression barriers
By H Phillips, A Spaeth, B Belle
There are several well-known, extensively researched and tested methods of suppressing a coalmine methane and coal dust explosion. The choice of method used is dependent on the legislative requirement
Aug 28, 2017
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Developments in Coal Mining - 1970
"The outlook for Eastern Canada is decreasing coal production over the next few years; however, a reappraisal of the long-term requirements and increased prices of coal could lead to a revitalizing of
Jan 1, 1971
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A Skeletal Model For An Intelligent And Integrated Design System For Underground Coal Mines
By A. J. Basu
An overview of the evolution of computerized mine planning and design has been given, emphasizing the need for a knowledge-based system for planning and design of underground coal mines. An outline fo
Jan 1, 1991
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Bulletin 113 Abstracts of Current Decisions on Mines and Mining
By J. W. Thompson
OIL AND GAS AS MINERALS. Oil and gas within the ground are minerals and the fact that they have attributes not common to other minerals because of their fugitive nature or vagrant habit, and the dispo
Jan 1, 1916
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The Solidus Line in the Lead-antimony System (37a9a925-b8c9-4c5d-b597-a2a45b70f698)
By Schumacher, Earle E.
THE solidus line above the solid solution field in the lead-antimony system was originally determined by Dean and his associates1 from heating curves. They did not regard this line as having been accu
Jan 1, 1927
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Powder Metallurgy
By Frances H. Clark
DEVELOPMENTS in powder metallurgy have been disappointing in 1943. If any new part has gone into large-scale production, knowledge of it has been restricted by considerations of national security. Nor
Jan 1, 1944
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Airplanes Solve Alaskan Mining Problems
By CLARENCE WM. POY
THE most common difficulty faced by an engineer or mine operator when opening a new property in a new field is the lack of roads and of cheap transportation. This one item often swings the balance of
Jan 1, 1935