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Comparación del circuito de molienda entra clasificadores y ciclones en la concentradora de CasapalcaBy V. Mejía C.
A raíz de un informe de un estudio petrográfico de las relaciones de Casapalca presentado por el Sr Kobe, surge la idea de mejorar la molienda, reemplazando los clasificadores por ciclones. En esta pe
Jul 20, 1961
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Comparación entre EIA y ESHIA para la evaluación de proyectos minerosBy R. E. Mitchell
Los proyectos mineros son revisados por medio de dos estudios: el primero es el Estudio de Impacto Ambiental (EIA) que evalúa proyectos mineros e industriales propuestos para obtener una programación
Oct 1, 2012
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Comparative Analysis Between Traditional And EC7 Criteria Applied To The Design Of Diaphragm Walls Concerning The Ultimate Limit StatesBy J. Matos e Silva
The paper refers five examples of executed diaphragm walls with one to five levels of anchorages. For each example a comparison is made between the results of the design using the traditional crit
Jan 1, 2002
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Comparative Analysis Between Traditional and EC7 Criteria Applied to the Design of Diaphragm Walls Concerning the Ultimate Limit StatesBy J. Matos e Silva
"Abstract The paper refers five examples of executed diaphragm walls with one to five levels of anchorages. For each example a comparison is made between the results of the design using the traditiona
Jan 1, 2014
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Comparative Analysis Of An Innovative Ventilation System For Large-Scale Longwall Mining OperationsBy Sunil Jain, Jan M. Mutmansky
As coal mining evolves in this country, underground coal is being mined at greater depth and under more difficult conditions than in the past. At the same time, economic conditions make it necessary t
Jan 1, 1987
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Comparative Analysis of Deep-Sea MineralsBy Pedro Madureira, Georgy Cherkashov, Harald Brekke, Marzia Rovere
"The most promising deep-sea mineral resources for exploration in the Area (beyond the limits of national jurisdiction) are polymetallic nodules, cobalt-rich ferromanganese crusts and polymetallic sul
Jan 1, 2017
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Comparative Analysis Of Moisture Sensitivity Index Tests For Coal Mine Roof - Preprint 09-068By T. Klemetti
Moisture deterioration of clay-rich roof rocks causes high numbers of roof falls in coal mines in humid summer months. Rocks with high moisture content are generally weaker and can further deteriorat
Jan 1, 2009
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Comparative Analysis Of Neural-Network And Traditional Meta-Modelings For Placer Gold Oregrade Spatial Variability EstimationBy J. Ke
Traditional geostatistical methods have been used in ore reserve estimation for decades. Neural Networks (NNs) have provided an alternative approach to data analysis and ore reserve estimation. Unlike
Jan 1, 2003
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Comparative Analysis Of Open Pit Mine Scheduling Techniques For Strategic Mine Planning Of The Tintaya Copper Mine In PeruBy D. Bernabe
The mine scheduling process defines a mining sequence across the life of the mine and stipulates the amount of ore, waste, and specific blocks to be mined each year so that the highest economic return
Jan 1, 2002
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Comparative Analysis of Performance of Water Only Cyclones and Hydrocyclone for Iron Ore Processing at Joda Iron Ore Processing Plant, Tata SteelBy D. Chakraborty, Neeraj Kumar
"The study provides the comparative analysis of the performance of water only cyclones and hydrocyclone for iron ore fines processing at Joda Iron ore processing plant, Tata Steel. Joda iron ore depos
Jan 1, 2018
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Comparative Analysis of the Effect of Microwave Pre-treatment on the Milling and Liberation Characteristics of Mineral Matters of Different MorphologiesBy R. Venugopal, V. K. Saxena, S. K. Tripathy
"This study was carried out to understand the impact of variation in material morphology on the efficacy of microwave pretreatment. Three different types of mineral matter – coal, iron ore and mangane
Jan 1, 2017
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Comparative Analysis of the Effect of Mining Parameters on Open-Pit OptimisationBy Joseph Githiria, Khadija Omar Said
Mineable material is defined using cut-off grade either as geological or economic cut-off grade. Both geological and economic cut-off grade affects the output generated in an open-pit mining operation
Jun 25, 2023
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Comparative analysis of toppling behaviour at Chuquicamata open-pit mine, ChileBy P. Varona, L. Lorig, M. Board, E. Chacon
Geomechanical factors at the mine are important and will become even more relevant as the pit expands and deepens. To address these demands a team was assembled to collect geomechanical information an
Apr 1, 1996
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Comparative Analysis Of Two Different Niti Wires’ Properties And Fatigue LifeBy Leandro de Arruda Santos, Lorena Isabela de Oliveira Ribeiro, Jéssica Dornelas Silva, Pedro Damas Resende, João Victor Lucas Amim, Suzanny Cristina Soares Martins, Vicente Tadeu Lopes Buono
O objetivo do presente estudo foi avaliar a resistência à fadiga de duas ligas de NiTi diferentes sob condições de teste controladas por deformação a 25°C por meio de testes de fadiga por flexão rotat
Oct 25, 2019
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Comparative Blasting Using Non-Electric Pyrotechnic Delays and the Electrodet Electronic Delay System at a Limestone Quarry in New York State, USABy Carl Lubbe, Ron Frye, Wayne Curtis, Julie Pecori, Dan Leach
Blasting conducted in the USA using the new Electronic Initiation System developed by Altech has shown that an accurate delay system will benefit the customer. Results from test work clearly showed th
Jan 1, 1997
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Comparative Case Study Of Yielding And Critical Coal Pillar Designs In Bump-Prone StrataBy J. R. Koehler
The failure of yield pillar-based gate mad designs to provide adequate ground control performance is primarily related to the use of "critically" sized chain pillars. A "critical" pillar is one that f
Jan 1, 1995
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Comparative Cavability Studies at Three MinesBy Louis A. Panek
INTRODUCTION AND SUMMARY With respect to the geomechanics aspects, the primary technical objectives in mining by an undercut-cave method are to achieve a controlled, sustained caving of the minera
Jan 1, 1981
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Comparative Cost of Rock Drilling UndergroundDURING a period extending over about the last two and a half years, the performances of various types of rock drills in use at the mining department of the Zinc Corporation have been recorded as close
Jan 1, 1923
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Comparative Costs of In bye Power in a Mine as Derived from Compressed Air or Electric SourcesBy Mark W. Booth
THIS paper deals with the subject of inbye power as the mechanical . engineer sees it, and invites discussion, particularly from the electrical engineer. At the outset, it will be necessary to clear
Jan 1, 1936
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Comparative Data Analysis Using a Machine Learning Based Approach for Estimation of Particulate Matter Concentration in the Mines and the VicinitiesBy Milka Madahana, John Ekoru
Particulate matter is one of the leading pollutants in the mines and in the communities in the areas near or surrounding the mines. The availability of large Clinical and environmental data sets obtai
Jun 25, 2023