Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
Auger-Cast Piles Founded In Compressible Bearing Stratum
By Alfred H. Brand
New York City contains extensive deep deposits of glacial lake varved silt and clay, often overlain by organic soil. An 18 story building was proposed for Manhattan's upper East Side in one such
Jan 1, 2003
-
Washington Paper - The Work of the United States Geological Survey in Relation to the Mineral Resources of the United States
By Charles D. Walcott
Jan 1, 1901
-
Effect of Surfactants in Dust Control by Water Sprays
By H. Polat, Q. Hu, S. Chander
The collection efficiency of dust particles was determined in a laboratory dust chamber equipped with a water spray. Measurements were made in the presence of selected nonionic, cationic and anionic s
Jan 1, 1992
-
IC 8719 Projects To Expand Fuel Sources In Western States - Survey Of Planned Or Proposed Coal, Oil Shale, Tar Sand, Uranium, Geothermal Supply Expansion Projects, And Related Infrastructure, In States West Of The Mississippi River (As Of May 1976)
By John S. Corsentino
This Bureau of Mines study is a listing of fuels -related projects that are presently under construction, planned, or proposed by various companies and organizations in the Western United States. The
Jan 1, 1976
-
Industrial Minerals 2004 - Attapulgite
By C. Stoneback
The attapulgite industry saw a year of solid growth after a weaker 2003. Demand was up between 5 percent and 6 percent driven by almost all of the key markets. Construction continued to show reco
Jan 1, 2005
-
Mathematic Models of Lost Currents in Bipolal Cells
By Zhao Guangwen, Wu Tan, Qiuzhan Tian, Duan Shuzhen
"A thorough study of lost currents in bipolar cells has been made for the development of the great potential of bipolar cells in energy saving. A proper equivalent circuit for bipolar cells has been f
Jan 1, 1988
-
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
-
Igneous Activity and Sedimentation in the Precambrian Between Kalgoorlie and Norseman, Western Australia
By Sofoulis J
In the Archaean of the Kalgoorlie-Norseman area, the layered rocks have been subdivided into two sequences, both containing basic igneous rocks and sediments. The lower sequence is distinguished by th
Jan 1, 1965
-
OFR-18-76 Economic Feasibility Of Recovering And Utilizing Methane Emitted From Coal ? I. Summary - A. Purpose And Scope
The U.S. Bureau of Mines has been concerned for many years with the general problems of underground coal mining and the particular problems due to the methane content of the coal. The Bureau and other
Jan 1, 1975
-
Mining Methods in the Waihi Mine, N.Z.
By Johnston W. H
MINING operations in the Waihi mine began, under the present proprietorship in the year 1889. Previous to this, and as far back as the year 1880, the presence of reefs in the Martha Hill had been know
Jan 1, 1912
-
Technical Note - A Theoretical Model for Outbursting in Coal Mines
By Schlanger H. P
A theoretical model for gas outbursts in underground coal mines is as follows. An outburst is the structural failure ofcoal due to excess stress resulting from body forces caused by gas pressure gradi
Jan 1, 1985
-
The Purification of Low-Grade Quartz Ore by Flotation and its Mechanism
The Purification of Low-Grade Quartz Ore by Flotation and its Mechanism
Sep 13, 2010
-
Industrial Minerals 2004 – Fuller’s Earth
By R. L. Virta
Sixteen companies mined fuller’s earth in 11 states during 2004. Production during 2004, based on a preliminary survey of fuller’s earth producers, was 3.96 Mt (4.3million st) valued at $340 million.
Jan 1, 2005
-
Industrial Minerals 2004 – Feldspar and Nepheline Syenite
By W. Z. Rogers
U.S. feldspar output sold or used in 2004 was estimated to be 790 kt (871,000 st), valued at $43 million free-on-board plant. This was below 2003 and about the same volume as 2002. The strong housin
Jan 1, 2005
-
Ensaios Tribologicos Para Obtenção Do Coeficiente De Atrito De Um Aço Ferramenta Com Tratamentos Superficiais De Nitretação A Plasma E Revestimento Ticn
By Luciano Aparecido Kempski
O ferramental utilizado em processos de conformação é de grande interesse da Engenharia de Superfícies devido às características tribológicas específicas encontradas nestes processos. Portanto busca-s
Aug 8, 2018
-
OFR-29-84 Electrical Installations In Oil Shale Mines
By Bobby B. Gillenwater
This report presents recommended guidelines and regulatory changes applicable to electrical installations in underground oil shale mines. These recommendations are based on information gathered from o
Jan 1, 1983
-
OFR-83(1)-78 XVI International Conference On Coal Mine Safety Research - I Electrical Apparatus - Study Of Means For Increasing Intensity Of Current That Can Circulate Through An Intrinsically Safe Resistive Circuit - Introduction
By A. Monomakhoff
If a conductor traversed by an electric current is broken, a conduction forms in the air between the two broken ends of the wire. This conduction manifests itself in an initial phase by an electric sp
Jan 1, 1975
-
IC 7132 Work Of The Bureau Of Mines Safety Cars In The Pennsylvania Anthracite Region From 1934 To 1939 - Introduction
By J. J. Forbes
The original organic act establishing the Federal Bureau of Mines in 1910 and the amended act of 1913 indicated that promotion of the health and safety of mine workers was to be ore of the chief funct
Jan 1, 1940
-
Eskay Creek Mine and Mill – A Continuing Success
By Garry Biles
The Eskay Creek Mine is a high-grade gold and silver underground mine in northwestern British Columbia. The mine started operations in late1994. For the first three years, ore was crushed to -50 mm(-
Jan 1, 2000
-
Effect Of Pressurized Drilling Methods On The Lateral Load Capacity Of Drilled Shafts - A Practical Insight And An Analytical Approach
By Özgür Bezgin
This paper presents observations on the installation of drilled shafts from two construction projects and an academic study with experimental and analytical parts. The construction projects involved t
Jan 1, 2009