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OFR-64-75 Proceedings Of The Second WVU Conference On Coal Mine Electrotechnology
A compilation of papers presented at The Second WVU Conference on Coal Mine E1ectrotechnology in Morgantown, West Virginia on June 12 -14, 1974. Papers cover areas of electric power, electronic commun
Jan 1, 1974
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RI 5506 The Bureau Of Mines Synthetic Liquid Fuels Program, 1944-55 - Part I. - Oil From Coal - Preface -Paths From Coal To Synthetic Fuels
The complex organic chemicals in coal differ from those in petroleum mainly by the ratio of carbon atoms to hydrogen atoms; this ratio is about 2 for coal and 1 for petroleum. By changing the ratio, c
Jan 1, 1959
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Widening Uncertainties in the Utility Fuel Outlook – Preprint 97-21
By J. B. Platt
Many utility fuel choices 1990-95 defied expectations, with utility decisions and coal market developments ever more closely linked. The Central Appalachian coal boom never occurred; clean-enough coal
Feb 24, 1997
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Mineral Indicators - Aluminum (52afa842-f160-4911-9105-d0cbeea5ddcb)
Aluminum Production. -By October 1, Aluminum Company of America will restart a 35,000-ton-per-year unit at its aluminum smelter at Rockdale, Tex., restoring that facility to its full capacity of 325,0
Jan 1, 1980
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Notes for the Mining Public Concerning Certain Mistaken Ideas
THOSE who dabble in mining are no exception to the general rule that persons who know a little of a subject are apt to think that they know all about it. Some colour may be lent to the belief that any
Jan 1, 1910
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RI 3902 Investigation of Lost River Tin Deposit, Seward Peninsula, Alaska
By H. E. Heide
"Before the war, the United States was the world’s leading consumer of tin, the industrial applications of which had become widespread. Domestic production was negligible, and requirements were met al
Jul 1, 1946
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Control del medio ambiente en la refinería de zinc de Cajamarquilla
By César Fuentes Líbano
El presente trabajo describe el tratamiento que realizó la refinería de zinc de Cajamarquilla en sus afluentes para preservar el medio ambiente. Para ello, la construcción de dicha refinería ha establ
Nov 8, 1982
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RI 3943 Exploration for Fluorite Crittenden & Livingston Co., KY
By Robert C. Hickman, Xavier B. Starnes
"The general location of the Kentucky, Fluorspar District and the Moore Hill fault area are shown in figure 1. An engineer3/ the Bureau of Mines visited the district in July 1942 and reported on the M
Sep 1, 1946
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Modeling Of Hand-Arm Vibration - Introduction
By Akul Joshi, Ming C. Leu, Robert Guttenberg, Susan L. Murray
The aerospace and automotive industries are facing a significant risk for cumulative trauma disorders from high-repetition, long-duration tasks. Additional risk factors such as shocks, vibrations and
Jan 6, 2006
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RI 3906 History of Water Flooding of Oil Sands in North TX
By Peter Grandstone, D. A. Jessup, D. B. Taliaferro
"INTRODUCTION Water flooding of oil sands in Texas as a means of secondary recovery of oil has been practiced mainly in the north-central part of the State, which includes the old shallow fields in ei
Jul 1, 1946
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IC 7423 Wash and Change Houses at American Mines
By J. H. East, D. Harrington
"INTRODUCTION Mining at its best is not a clean occupation for either surface or underground employees; and this applies alike to coal, metal, and non-metallic mines. The employees are handling minera
Dec 1, 1947
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Grasberg Block Cave Haulage Project – Design and Construction Update
By B Mead, N D. Pascoe
The Grasberg block cave rail haulage system will be located in the Grasberg mining district on the island of Papua, Indonesia at an elevation of almost 3000 m above sea level. It will transport 160 00
May 9, 2016
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Evolución sedimentológica y tectónica de las formaciones Jumasha-Celendín y su relación como rocas huéspedes de la faja de skarn polimetálico y de reemplazamiento en la cordillera central de Perú
By J. P. Navarro
Se reporta el registro regional de las facies sedimentarias de la Formación Jumasha-Celendín, con la finalidad de entender su extensión, distribución y evolución vertical. Con ello se determinó la evo
May 1, 2008
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Equação De Correlação Com Enfase Na Litologia Para Estimativa De Resistência À Compressão Uniaxial Através Do Uso De Pundit
By Nei Bongiorni Alff de Freitas
O uso de velocidade de onda sônica tem ganhado espaço na estimativa de resistência à compressão uniaxial (UCS) por ser um método mais barato, rápido e não destrutivo em comparação com o método tradici
Oct 30, 2017
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IC 9145 Human Engineering And Human Resources Management In Mining - Proceedings: Bureau Of Mines Technology Transfer Seminar, Pittsburgh, PA, July 7-8, 1987; St. Louis, MO, July 15-16, 1987; And San Francisco, CA, July 21-22, 1987
The Bureau of Mines human factors research program is directed toward reducing accidents and improving the overall efficiency of the person-machine environment interface found in surface and undergrou
Jan 1, 1987
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Minería y agricultura, ¿cómo propiciar el futuro del país?
By Luis Palacios
Dentro de las actividades económicas primarias más representativas, la agricultura es la que mayor mano de obra emplea y la minería es la que más ingresos proporciona al Estado. Este artículo propone
Aug 30, 2020
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Cement and Concrete Are Not What They Used to Be
By Raymond E. Davis
LET'S imagine we are at the Grand L Coulee Dam, where daily 15,000 barrels of low-heat Portland cement and 27,000 tons of processed aggregate in various sizes are mixed to produce 30,000 tons of
Jan 1, 1939
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Ground Improvement for the Distressed Earth Bund Using Stone Column - A Case Study
By M. Kumaran, A. Vetriselvan, A. Purantharan
"This paper presents a case history of evaluating the stability of a distressed earth bund and rectification measures carried out. A 5.45 km long, 7m high earth bund for drinking water storage was con
Jan 1, 2017
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Core Drilling At Shaft Sites Of Proposed Mine-Water Drainage Tunnel - Anthracite Region Of Pennsylvania - Summary
By S. H. Ash
THE information obtained by examining and analyzing the core drillings from 15 diamond-drill holes shows that with the proper equipment little difficulty should be experienced while sinking the shafts
Jan 1, 1952
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Highlights - Aluminum -
Reynolds Metals Company announced plans to increase its rate of production of primary aluminum by 17 thousand tons per year by the end of February. Other producers were expected to increase operating
Jan 1, 1976