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Quarry Accidents In The United States During The Calendar Year 1939 - Introduction
By William W. Adams
Progress made by the quarrying and related industries of the United States during 1939 included increases in the number of men employed and the number of man-hours worked and reductions in the death a
Jan 1, 1941
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Papers - Flotation - Correlation between Mineral Behavior in Cataphoresis and in Flotation (T. P. 2005, Min. Tech., May 1946, with discussion)
By S. C. Sun, A. M. Gaudin
This paper presents the results of a. study of the relationship of the electrokinetic or zeta potential to flotation phenomena. The relationship is established on the experimental evidence that mine
Jan 1, 1947
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Papers - Flotation - Correlation between Mineral Behavior in Cataphoresis and in Flotation (T. P. 2005, Min. Tech., May 1946, with discussion)
By A. M. Gaudin, S. C. Sun
This paper presents the results of a. study of the relationship of the electrokinetic or zeta potential to flotation phenomena. The relationship is established on the experimental evidence that mine
Jan 1, 1947
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Design Principles for Soft Ground Cutterheads
By Werner Burger
The last decade has witnessed a rapid development and application of slurry and EPB type tunnel boring machines. Both soft ground types are able to excavate tunnels in unstable ground conditions below
Jan 1, 2007
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Forthcoming Meetings Of Societies (bba576cd-9264-4d41-b56f-8aec3fad7eb3)
Organization Place Date 1917 American Institute of Architects Philadelphia,.,; Pa. Dec. 26-29 American Society of Mechanical Engineers New York City. Dec. 26-29 American Mining Congress State Chap
Jan 11, 1917
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Design And Backfill Installation Considerations For Cut-And-Cover Coal Mine Slope Entry Using Steel Supports And Lagging (5aeac579-3675-40a9-b37e-6b4c5af947be)
By Larry DeGraff
With the increase of new mine development in the past several years, many coal mines have decided to self- perform the design and construction for their slope development projects. The development pr
Jan 1, 2009
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Micropile Foundations For Support Of New Bridge Structures Over Abandoned Mine
By Timothy J. Myers
Expansion and the economic growth in the southwestern region of Missouri necessitated the expansion of State Route 249 and the construction of a new interchange to provide service to the Joplin, Misso
Jan 1, 2009
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Technical Notes - Minerals Beneficiation - Quantitative Bubble Pick-Up Methods
By R. C. Troxell, S. C. Sun
EFFORTS to obtain definite quantitative data when employing the currently used bubble pick-up method1,2 as a pre-flotation investigation tool led to the adoption of the magnifying mirror method and th
Jan 1, 1954
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Drilling - Equipment, Methods and Materials - Stresses at Intersection of Tubes: Cross- and T-Joints
By A. A. Toprac
The recurring problem of joint failures in ofjshore structures, coupled with the catastrophic collapse of many of these structures during Hurricane Hilda (1964), hay forced reconsideration of techniqu
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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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Halifax Paper - Lixiviation and Amalgamation Tests
By F. W. Clark
At the present time, when lixiviation versus amalgamation is being so thoroughly discussed by practical men, and published information is so meagre, the following tests, made by students in the mining
Jan 1, 1886
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Engineering The Health, Safety And Comfort Of Dump Truck Operators
By N. Aouad
Dump truck operators are exposed to whole-body vibration (WBV) levels that exceed the International Standard Organization (ISO) 2631-1. The WBV level measured by RMS acceleration value, for operator c
Feb 27, 2013
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Iron and Steel Division - Activities in Dilute Liquid Solution Fe-Si-O (TN)
By T. C. M. Pillay, John Chipman
The Si-0 equilibrium in liquid iron was investigated in some detail by Gokcen and Chipman1 who reported equilibrium constants of the following reactions: In each case the thermodynamic equilibrium
Jan 1, 1962
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OFR-36-84 Development And Evaluation Of Noise Control Techniques For Taconite Processing Equipment
By N. Dixon
This report summarizes all work performed under U.S. Bureau of Mines Contract J0377014, "Development and Evaluation of Noise Control Techniques for Taconite Processing Equipment." Three areas of tacon
Jan 1, 1983
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Part 1. Accounting For The Extractive Industries (2c007f3d-0020-4c34-8e9d-834c17fed200)
By Maurice E. Peloubet
This discussion of accounting will describe the statements and the information that the accounting system produces, from the point of view of those who use such systems rather than of those who prepar
Jan 1, 1964
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History and Problems of the Wabana Submarine Iron Mines
By V. J. Southey
"This paper reviews the history of Wabana Mines from 1892 to 1966, inclusive, in order to clarify the essential factors involved in the achievement of maximum mining efficiency and in the search for a
Jan 1, 1969
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SOLIDIFICAÇÃO UNIDIRECIONAL TRANSITÓRIA, MICROESTRUTURA, PARÂMETROS TÉRMICOS E DUREZA DE LIGAS AA5052 VARIANDO TEOR DE Mg
By Cínthia Toshimi Ogata
Processos de fundição de ligas de alumínio com altos teores de Mg são um desafio da indústria, uma vez que diferentes taxas de resfriamento ocorrem em geometrias diversas. Este trabalho tem como objet
Oct 30, 2017
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Application Of Dynamic Surface Tensiometry To Froth Flotation - Introduction
By W. C. Meyer
Surface tension and its control are important in the concentration of ores by froth flotation, both in terms of producing the proper bubble size distribution and to render the ore surface of interest
Jan 1, 1983
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Public Private Partnerships: Education And Research Opportunities
By F. J. Brenner
The Slippery Rock Watershed Coalition was organized to restore a 70 km2 portion of the headwaters of the Slippery Rock Watershed in northwest Pennsylvania. Thirteen passive treatment systems have bee
Jan 1, 2002
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In-Situ Performance Analysis Of Immediate Forward Support (IFS) Systems In Thin-Medium Seam Sections In The United Kingdom
By Paul N. Freeman
This paper describes the in-situ performance of two IFS powered support installations at Betws and Penallta Collieries in the South Wales Coalfield, United Kingdom. Intensive monitoring of all powe
Jan 1, 1992