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IC 9296 Basic Geological And Analytical Properties Of Selected Coal Seams For Coal Interface Detection
By Slavoljub Makslmovic
One important element of the U.S. Bureau of Mines computer-assisted mining research program is the development of a reliable coal interface detection (CID) system. Several candidate CID concepts curre
Jan 1, 1993
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Applications of seismic hazard assessment methods in mines
By G. van Aswegen
Large structures in mines (faults, dykes, pillars, abutments) fail when the load exceeds the strength. If the loading system stiffness (LSS, also referred to as the ‘local mine stiffness’) is lower th
Jan 1, 2003
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Iron Ore Mining on Red Mountain, Alabama
By TENNEY C. DeSOLLAR
TRADITION tells us that the earliest use of Alabama iron was to make shoes for the horses of General Andrew Jackson and his men during the first part of the nineteenth century. The first recorded inci
Jan 1, 1937
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Introduction (f021bf21-e10f-41e4-9b75-c54b8612d619)
Research 83 highlights significant studies conducted during the past fiscal year at Bureau facilities and offices. Readers who want more information about the projects and studies summarized here can
Jan 1, 1983
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The Ore Deposits of Nickel Plate Mountain, Hedley, B.C.
By Paul Billingsley
NICKEL Plate mountain coincides closely with that portion of the Hedley mining district which is of economic interest. From it has come almost the entire past production, and the active mines of the p
Jan 1, 1941
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Gold-copper ores processing / flotation process optimization by the development of an on-line expert system
By Yves Breau, François Robichaud, Jacques McMullen, Pierre Pelletie
"The Expert System implemented at the East-Malartic mill controls a copper flotation circuit while taking into account the profitability of the operation. Treating a copper gold ore, the flow sheet in
Jan 1, 2002
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Government Actions And The Mineral Industry (258f39ae-c1a2-4cc1-9367-34f38d87beb5)
Duty on Lead Reduced. -On December 28, the President signed H.R. 5047 which reduces the duty on unwrought lead from 3.5% ad valorem to 3% ad valorem, with a floor level of 1.0625 cents per pound, effe
Jan 1, 1980
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Multi-Gravity Separator: An Alternate Gravity Concentrator To Process Coal Fines
By A. K. Majumder
The multi-gravity separator (MGS) is a novel piece of equipment for the separation of fine and ultra-fine minerals. However, the published literature does not demonstrate its use in the separation of
Jan 1, 2007
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Technology Selection for the Genesee Phase 3 Electricity Generating Station Expansion
By Les Johnston
_ BACKGROUND - About EPCOR - Genesee Generating Station - Phase 3 Expansion _ TECHNOLOGY SELECTION - Selection Criteria - Combustion Options - Flue Gas Emission Control Options _ STAKEHOLDER V
May 1, 2002
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Iron and Steel - High-Tensile Low-Alloy Steels Make Rapid Advance - Quality the Keynote in the Industry
By M. J. R. Morris
THE year 1939 has seen the iron and steel industry driving for efficiency with unabated zeal. "Efficiency" is here used in the sense of enabling the customer to do more with less, either supplying him
Jan 1, 1940
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IC 8849 Room And Pillar Retreat Mining - A Manual For The Coal Industry
By Peter W. Kauffman
This Bureau of Mines publication is designed primarily to provide mine engineers and production-level mine managers with the following: 1. Information to assist them in making the decision to retr
Jan 1, 1981
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Fuzzy Logic Self-Tuning PID Controller Design for Ball Mill Grinding Circuits Using an Improved Disturbance Observer Mining, Metallurgy and Exploration
By Hamed Khodadadi, Hamid Ghadiri
In this study, a fuzzy logic self-tuning PID controller based on an improved disturbance observer is designed for control of the ball mill grinding circuit. The ball mill grinding circuit has vast app
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Fuzzy Logic Self-Tuning PID Controller Design for Ball Mill Grinding Circuits Using an Improved Disturbance Observer Mining, Metallurgy and Exploration (ad065287-325d-4c37-9f3a-f3531e4c1359)
By Hamed Khodadadi, Hamid Ghadiri
In this study, a fuzzy logic self-tuning PID controller based on an improved disturbance observer is designed for control of the ball mill grinding circuit. The ball mill grinding circuit has vast app
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Underground disposal of radioactive waste by United Kingdom Nirex Ltd.
By B. J. Breen, C. S. Mogg
Considerable borehole investigation work has been completed at a proposed site at Sellafield in Cumbria, supplemented by seismic surveys, other geophysical sensing and geological mapping. The focussin
Aug 1, 1994
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Prevention of corrosion in aircraft -an overview of the evolution of materials and protective treatments
By L. Salnais
"Aluminum alloy structural components f or aircraft designed prior to the early 1970s, were machined from 2024, 7075 and 7079 plate, bar and forgings in either the T3xxx of the T6xxx tempers. Protecti
Jan 1, 1988
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OFR-9(2)-72 Coal Mine Rescue And Survival System - Volume II - Communications/Location Subsystem
The design, specification, and performance evaluation of the Communications and Location portions of a Coal Mine Rescue and Survival System are described. The work was performed as part of a nine mont
Jan 1, 1971
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Silicosis : An Ancient Malady in a Modern Setting
By R. C. Burtan
Long before recorded history, man began to dig into the earth's crust in a never ending search for useful materials. It is well known that more than half of the earth's crust is composed of
Jan 7, 1984
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Sound Transit Link Light Rail Northern Extension
By Paul M. Godlewski, Joseph P. Gildner, David S. McAllister
With construction underway on the 22.5 km (14 mile) Initial Segment of the Link Light Rail transit system in Seattle (including the one-mile EPB-driven running tunnels and mined station at Beacon Hill
Jan 1, 2005
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Methodology for Assessing the Benefits of Grind Control Using Particle Size Tracking Technology for True On-Line Particle Size Measurement
By J. Sepulveda
"Despite the recognized influence of product fineness on line capacity and downstream process performance, few mineral concentrators today use particle size measurement of the final product in automat
Nov 1, 2018
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Die-Casting - What the Industry Has Learned and Given to Others
By Sam Tour
WHAT is a die-casting and what is the die-casting industry? From the literal translation of the words "die" and "casting"' one concludes that a die-casting is a casting made in a die. The casting
Jan 1, 1935