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Caracterização Experimental Do Processo De Delaminação Em Material Compósito De Fibra De Carbono E Resina EpóxiBy Amanda Coutinho Campanatti
O objetivo desse trabalho é caracterizar o processo de delaminação, tanto em Modo I como em Modo II, de abertura de trinca. A densidade e porcentagem de fibra do compósito carbono-epóxi foram calculad
Aug 7, 2018
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Surfactant Adsorption and Wetting Behavior of Freshly Ground and Aged CoalBy B. R. Mohal, S. Chander
"The adsorption and wetting behavior of freshly ground and aged coals has been determined in the presence of a nonionic surfactant. The amount of surfactant adsorption changes with the concentration a
Jan 1, 1989
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Investigation of one-pass grouted support systems for use in a high stress mining environmentBy John Galbraith, Dwayne D. Tannant, Chris C. Langille
"Development of underground openings in a deep mining environment requires a support system that is able to absorb energy as a result of dynamic loading due to rockbursting and blasting and static loa
Jan 1, 1996
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RI 3800 Study of Firing Failure in Massive TalcBy Howard F. Carl
"INTRODUCTION Talc is a hydrous magnesium silicate mineral found throughout the world in deposits of economic importance. This mineral occurs in different physical forms and varying degrees of purity,
Feb 1, 1945
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Renewable Energy and Amorphous Silica Obtained From Rice Husk Combustion in a Fluidized Bed ReactorBy Juan Daniel Martínez, Janaina Accordi Junkes, Dachamir Hotza, Tatiana Pineda
"The rice husk combustion in a bubbling and atmospheric fluidized bed reactor was investigated. The results showed the technical viability of producing both heat and amorphous silica from a renewable
Jan 1, 2008
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A Cost Comparison between Empirical and Engineered Support and Reinforcement Designs for Tunnels in a Low Stress EnvironmentBy L Nienaber
Mines, after becoming operational, often retain the same support and reinforcement designs developed in the feasibility study. These designs are conceived from limited drilling data and regional exper
Mar 8, 2011
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The human factors in the success of mineral processing projectsBy M. P. Smith, C. Hughes-Narborough, Y. T. Man
"Money and reputations can be lost in bad projects. Causes of bad mineral processing projects include poor contract definition and purchase of equipment without adequate test work. However, the root c
Aug 1, 2016
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Prediction of Realistic Thermal Fields in Mould Filling of Castings by an Explicit Finite Element MethodBy A. S. Usrnani
Due to both turbulence and the highly variable geometry of castings, a realistic numerical simulation of the metal flow is prohibitvely expensive with current technology. However, when the chief purpo
Jan 1, 1994
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Sílice libre- Formas - Rocas que lo contienen - Potencialidad silicósica"El presente texto señala las formas en que se presenta el sílice libre y las principales rocas constituyentes del material generador de la silicosis. En ese sentido, el ""sílice libre"" se presenta a
Jul 20, 1957
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Distributed control at the Kidd Creek grinding plant. Part II: ImplementationBy A. Desbiens, A. Pomerleau
During the summer of 1994, a new PID-based control strategy was installed on line B of the grinding circuit at the Kidd Creek Division of Falconbridge Ltd. Part I of this paper described the methodolo
Jan 1, 1997
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Rehabilitation of Tunnels: An Owner’s PerspectiveBy Teena Redhorse, David Tsztoo, Anthony Yu
"Since ancient times, storing and conveying water via underground water systems and tunnels has been touted for its strategic advantages. Underground cisterns and tunnels assured protection of essenti
Jan 6, 2018
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The Lornex Mining Project and the Highland Valley, B.C.By C. W. Reno
"THE LORNEX MINING PROJECT is one of several large-tonnage, low-grade operations recently placed in operation in British Columbia. It is located in the Highland Valley in the south central portion of
Jan 1, 1973
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Express Rail Link – Challenges of Tunnelling Through Hong Kong and into Mainland ChinaBy A Morris
The Express Rail Link (XRL) will provide high-speed rail services from Hong Kong to Guangzhou and a connection to the national high-speed passenger rail network serving major cities throughout Mainlan
Mar 8, 2011
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Microwave Power Absorption Characteristics Of Iron OxidesBy Yuzhe Zhang, Matthew Andriese, Jiann-Yang Hwang, Guanghui Li, Zhiwei Peng, Tao Jiang
The microwave power absorption characteristics of iron oxides, including Fe2O3, Fe3O4 and Fe0.925O, have been studied by determining dielectric loss and magnetic loss distributions in 0.05-m-thick oxi
Jan 1, 2015
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Sand and gravel deposits of the greater Vancouver areaBy Z. D. Hora
Sand and gravel resources of the southern coastal region of British Columbia may be linked to various episodes of Wisconsin glaciation. During Wisconsin and probably earlier times, the Fraser Lowland
Jan 1, 1984
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Hydrochloric Acid Leach Processes For Copper Concentrates ? IntroductionBy W. W. Harvey
The work to be described was part of an exploratory research program directed toward identifying potentially useful but little known reactions in extractive metallurgy. In particular, the major copper
Jan 1, 1976
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Blast Casting At An Eastern Strip Mine (b31012bf-2fc9-4254-a7e6-574a95628df1)By R. R. Rollins
Field data combined with theoretical derivations were used to design a surface mining operation using explosive casting. Calculated casting results varied from 44 to 65% depending on bench height. T
Jan 1, 1987
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Alexander Agassiz MonumentTHE LIFE and works of Alexander Agassiz, first president of the Calumet & Hecla Mining Co., were recalled to memory when a monument bearing his statue was unveiled in Agassiz Park, at Calumet, Mich.,
Jan 11, 1923
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Scaleup Of Hydrometallurgical Leach Recovery Processes ? IntroductionBy R. D. Williams
Several hydrometallurgical leach processes have been recently proposed for the recovery of copper from copper concentrates. These include the Cymet Process of Cypress Metallurgical Processes Corporati
Jan 1, 1975
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Fundamentally Transforming the Economic and Sustainability Signature of Mining AssetsBy M Jones
The past 100 years the mining industry can be characterised by a focus on increasing financial returns often to the detriment of social, human, manufactured and environmental capitals. Despite the sus
Nov 4, 2015