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Minerals Beneficiation in 1962In 1962, minerals beneficiation showed definite signs of coming out of the doldrums into which it has drifted after the uranium boom. Demand by steelmakers for high-grade iron pellets has created
Jan 2, 1963
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Local Use And Design Of Augered, Cast-In-Place Piles In The Southern Piedmont Province ? IntroductionBy Geoffrey C. Hebner
Augered, cast-in-place piles (ACIP) have become a very common foundation type in Atlanta and the Southern Piedmont Province as well as much of the United States in the past 20 years. Prior to the intr
Jan 1, 2003
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Manufacture Of Sterling Silver And Some Of Its Physical PropertiesBy Robert H. Leach, C. H. Chatfield
THIS paper gives a brief summary of the process of manufacture of sterling silver, and some of its more important physical properties, as observed in commercial production of rolled sheet and wire. Al
Jan 1, 1928
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Geophysics - Resistivity Method in Groundwater Exploration, City of Gunnison, ColoBy C. E. Melbye
A serious problem confronted the city of Gunnison early in 1958 in that, for a few months during each spring runoff, the water supply derived from the Gunnison River became polluted to an unsafe point
Jan 1, 1961
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Deep Foundations on Buildings using Driven Ductile Iron Micropiles.By Antonio A. Cristóvão, Alexandre Pinto
"Abstract Deep foundations of buildings using driven ductile iron micropiles TRIM solutions, leads to recognized advantages, from technical, schedule and economic points of view. High production rate
Jan 1, 2014
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Reservoir Engineering - General - A Correlation of the Viscosity of Hydrocarbon Systems With Pressure, Temperature and CompositionBy H. T. Kennedy, J. E. Little
An empirical equation for the prediction of the viscosity of several pure paraffin hydrocarbons and nitrogen is presented. It involves temperature, pressure and six constants of the material, and it a
Jan 1, 1969
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No. 7 Subway Extension Crossing Under An Existing Subway Station: Challenges And Integration Of Underpinning Into The Design Of New TunnelsBy Aram Grigoryan
This paper addresses the challenges of designing the underpinning of major sub-way station with 4 operating tracks. No. 7 subway extension crosses under the existing 42nd street subway station on the
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Reverse Column Flotation Of Iron OreBy T. C. Eisele
The use of column flotation was considered for the ?reverse flotation? of iron ore, where the gangue (quartz) was recovered in the froth product. This use of the froth for carrying the gangue mineral
Jan 1, 2007
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Some Developments On Laterally Loaded Piles With Particular Reference To P-Y Subgrade Reaction Method - Resume:By A. L. Garassino
Dans cet article on parle sortout de l'approche de calcule pour les pieux charges horizontalement avec particuliere reference aux curbes p-y et è une solution semi-empirique qui prende en conside
Jan 1, 1994
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Internal Air Temperature Measurements in Tyres-A Major Advance in Earthmover Tyre Pressure ControlTyre costs constitute 20-40 per cent of the operating cost of large haulage trucks, and tyre pressure maintenance is an important factor in minimizing costs.In the past, control over the hot (built-up
Jan 1, 1979
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Several Approaches to Enhance the Bioleaching of EnargiteSeveral Approaches to Enhance the Bioleaching of Enargite Some approaches were investigated to enhance the recovery of Cu from enargite by bioleaching with Acidithiobacillus ferrooxidans using the ga
Sep 13, 2010
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Overview presented of mineral exploration and development activities in the southwest PacificBy Paul D. Klipfel
Introduction Mineral exploration interest, principally for gold, in the south-western Pacific has surged to new proportions. This is primarily due to the application of epithermal exploration concept
Jan 10, 1987
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Statistics or geostatistics? Sampling error or nugget effect?What is a nugget effect? In the early development of geostatistics, the term ?nugget effect? was coined for the apparent discontinuity at the beginning of many semi-variogram graphs. This name was ch
Jan 1, 2009
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Cadmium in the Broken Hill LodeCadmium occurs in the Broken Hill Lode essentially as a camouflaged element, substituting diadochically for zinc in the sphalerite.Analyses of a series of zinc concentrate flotation products, prepared
Jan 1, 1955
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Preparation of Iron Oxide Feed Stock for Pig Iron/Sponge Iron Production - Role of NMDCBy Sahoo K. C
Traditionally, the blast furnace (BF) has maintained a dominant position as the primary source of iron units. Notwithstanding the efficient nature of the process in respect of its material and energ
Jan 1, 1999
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Sulphur Deposits of New ZealandOwing to the increased consumption of sulphuric acid; Australian manufacturers have, from time to time, been seeking for a satisfactory source of sulphur that would make them independent of foreign su
Jan 1, 1925
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Towards a Worldwide Network of Education in Mineral EngineeringBy Hans de Ruiter
"Delft University of Technology, RWTH Aachen, Helsinki University of Technology and Imperial College established the Federation of European Mineral Programs (FEMP) in 1999 as a legal body to coordinat
Jan 1, 2004
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Small Diameter Tunneling?Pipe Jacking Under Leipzig Main Train StationBy Klaus Rieker
The main train station of Leipzig in Germany is currently being upgraded from a head station to a partially thru station. In order to achieve this, significant ground improvements are necessary. Soil
Jan 1, 2008
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Stresses And Settlement In Soil Due To Axially Loaded Piles And Pile Group - Synopsis :By Virendra Singh
The load settlement behaviour of single pile or pile group may be obtained using computer based methods such as the finite or boundary element techniques. An alternative method of obtaining the vertic
Jan 1, 1996
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Blast Design and Diagnostics Using, Portable Solid State, High-Speed Videography SystemsBy Laura Bustemante, Bruce Vandenberg, Fred Huettig
Recent advances in solid-state, field portable, fast framing video camera systems and PC based frame capture hardware now allow blast imaging up to 1000 frames per second. Up to 8 seconds of data can
Jan 1, 1998