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High-pressure direct injection of natural gas in a diesel engine for high performance/low emissions (ace69f9b-8abb-4cd4-9306-9db2c42ce4ca)By K. B. Hodgins, P. Ouellette
"The North American mining industry faces challenging emissions regulations in the coming years with the introduction of new standards for off-road diesel engines. In order to remain competitive, indu
Jan 1, 2005
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Numerical Modeling Simulations of Spray-On Liners Support Potential in Highly Stressed and Rockburst Prone Rock ConditionsBy A. P. E. Dirige
Extensive field study has been performed to assess the capabilities of thin sprayon liners (TSLs) and conventional spray-on support systems for preventing rock and support material damage that often r
May 1, 2009
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RI 9498 - Coal Dust Explosibility and Particle-Size DistributionBy Robert F. Chaiken
An absorption-desorption model of particle reactivity was employed to describe the observed relationship between two apparently diverse phenomena which have been the subject of considerable study at t
Jan 1, 2010
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RI 7047 The Cause Of Fuming In Oxygen SteelmakingBy J. P. Morris
The Bureau of Mines investigated the mechanics of fuming of iron-carbon melts during top-blowing with oxygen. Melts weighing 45 lb were prepared in an induction furnace and blown with oxygen by means
Jan 1, 1967
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Execution And Evaluation Of High Capacity Caisson Load Tests In Glacial DepositsBy Franklin M. Grynkewicz
As part of the Boston Harbor clean up project, the new 1,000 mgd Deer Island Sewerage treatment plant includes ten 240 feet high egg-shaped "residuals" tanks. Contract documents called for these struc
Jan 1, 1992
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Increased TBM Mobility and Adaptations for Special ProjectsBy Dennis Ofiara
Several recent tunnel jobs have required special adaptations of hard rock TBMs. Some of the special job conditions are ?no blast? launch requirements, small shafts or launch pits, proximity to existin
Jan 1, 2008
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Conceptual and Geometric Design of Steep Slope Contour MiningBy John H. Gasper
The success of steep slope (>20°) contour mining depends on many factors. Most important is the selection of the mining method that best suits the premining site conditions environmentally and economi
Jan 1, 1991
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Quality Control Of Piling And Deep Foundations In Belgium, From The Design To The Execution. ? SynopsisBy D. Goossens
Quality control is a system which should guarantee that quality is achieved. It is the execution and verification of a project in an organised way, in order to obtain the maximum of certainty that the
Jan 1, 1996
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The Implementation of Floatstar Grade-Recovery Optimisation Control Solutions using Blue Cube Online Grade Analysers on Industrial Flotation Circuits (95bc70ac-0a71-42d0-95cb-764715f2cd9c)By P Moswate, D Phillpotts, S M. Mantsho, P Strobos
A challenge on many industrial flotation circuits is controlling concentrate mineral grades using measurements that are provided infrequently. The mineral grades in concentrate streams are a critical
Jul 15, 2013
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Developing Gold Fields’ La Cima Cerro Corona Project in PeruBy Richard W. Graeme, James J. Komadina
Gold Fields acquired an option to purchase the Cerro Corona project, located in Hualgayoc, Cajamarca Department, Peru, in December 2003. In January 2006, the option was taken up and the transaction c
Jan 1, 2007
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The Metallogenic Map of New ZealandThe metallogenic map of New Zealand shows the distribution of metallic mineral deposits, according to type and size, in relation to their geological setting. The major purpose of the map and accompany
Jan 1, 1993
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Assessment Of The Real Economic Feasibility Of Potential Critical Raw Materials Mining Projects In The U.s.; Implementation Of A Newly Developed Computational Tool - SME Annual Meeting 2022By M. A. Islam, H. Mischo, G. Barakos
Among the thirty-five declared critical raw materials (CRM) in the United States, there is no sustainable domestic production for the fourteen of them, while for some others domestic supply does not m
Mar 2, 2022
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Maintenance management control through utilization of a computerized system at the Key Lake projectBy T. Warren, R. Pender
"Significant strides have been made during the past decade to integrate the traditionally separate administrative functions of financial management, materials management and maintenance management.In
Jan 1, 1990
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Iron and Steel Division - The Effect of Oxygen Pressure on the Solubility of Water in Slags Containing Iron Oxide (TN)By J. M. Uys, T. B. King
WalSH, Chipman, King, and rant' have measured the water content (as hydrogen) of actual steel-making slags. An average water content of 290 ppm was found for basic open-hearth tapping slags an
Jan 1, 1963
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BHP Iron Ore Protocol for Mine ClosureBy Hillis R
As part of BHP Iron Ore's policy and goal of achieving a high standard of environmental management within its operations, a protocol for mine closure has evolved. The need to demonstrate sound
Jan 1, 1996
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Damage Delineation In Structures Using Laser Vibrometry And Remote ExcitationBy Peter Swanson, John Rettkowski
As part of a research program to reduce injuries and fatalities in the U.S. mining workforce, NIOSH is investigating the potential use of noncontact vibration measurements to identify hazardous ground
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Farmers Catalog, How to Remove Stumps with Du Pont High ExplosivesBy Robert Hopler
In issuing this pamphlet on stump and boulder blasting for the use of farmers, we wish to call attention to the fact that Du Pont High Explosives have been used with universal satisfaction for many ye
Jan 1, 2008
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The Use of Automated Mineralogy to Interpret the Batch Flotation Performance of Merensky Reef OreThe Use of Automated Mineralogy to Interpret the Batch Flotation Performance of Merensky Reef Ore
Sep 13, 2010
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OFR-177(2)-83 Electrical-Shock Prevention - Volume II - Ground-Fault Interrupting DevicesBy L. A. Morely
Volume II of the final report concerns the application of sensitive ground-fault interrupters (GFIs) to ac utilization circuits in U.S. mines The main concepts examined are shock prevention and method
Jan 1, 1982
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Preliminary Guidelines For Construction Of Large, Deep Underground CavernsBy W. G. Pariseau
Introduction Caverns of 50 m in linear dimension at depths below 2300 m with a life of more than 25 years are proposed for the next generation of water-filled neutrino detectors. Little precedent ex
Jan 1, 2006