Evaluation Of Mineral Resources
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Influence of water level in mine sequencing applied to strategic mining planning
Abstract Developing mine sequencing involves a number of factors and a large amount of information, and consequently the profitability of the project will strongly depend on the production schedule. A mining project may be conditioned to non-optimal sequencing, which may affect the economic results of the project and also lead to an inadequate utilization of
REM, Int. Eng. J.. Publicado em: 2020-06
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2. Evaluation of the Acid Baking Technique to Decrease the Phosphorus Content of the Iron Ore
Unlike the available mineral resources, the steelmaking processes have demanded raw material with lower phosphorus content to decrease the costs, energy use, and the residue generated within the steel plant. One alternative is to develop pretreatment of the iron ore concentrates producing raw materials with lower phosphorus. Depending on the mineral structur
Mat. Res.. Publicado em: 23/09/2019
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3. Assessing geologic model uncertainty - a case study comparing methods
Abstract Evaluating mineral resources requires the prior delimitation of geologically homogeneous stationary domains. The knowledge about the ore genesis and geological processes involved are translated into three dimensional models, essential for planning the production and decision-making. The mineral industry usually considers grade uncertainty for resour
REM, Int. Eng. J.. Publicado em: 16/09/2019
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4. UTILIZAÇÃO DO AGREGADO SIDERÚRGICO (ESCÓRIA DE ACIARIA) EM REVESTIMENTO ASFÁLTICO TIPO TRATAMENTO SUPERFICIAL / UTILIZAÇÃO DO AGREGADO SIDERÚRGICO (ESCÓRIA DE ACIARIA) EM REVESTIMENTO ASFÁLTICO TIPO TRATAMENTO SUPERFICIAL
Environmental sustainability requires preventive or mitigating environmental impacts caused by industrial production activities, to preserve non-renewable mineral resources. In this sense, this work is to evaluate through experimental studies predominantly by laboratory testing and field application the use of steel slag produced by Arcelor Mittal Tubarão i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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5. Krigagem com deriva externa aplicada à avaliação de recursos minerais de calcário e de minério laterítico / Kriging witch external drift applied to evaluation of mineral resources of limestone and lateritic ore
This dissertation is a work on applied geostatistics to evaluation of mineral resources. This application can be considered as the last step to such the task. The basic concepts are based on current geostatistics, with extensive use of informatics resources. The first goal of this work was to test the technique named kriging with external drift in the evalua
Publicado em: 2010
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6. Estudos geoestatísticos aplicados à um depósito magmático de Ni-Cu / Geoestatiscal studies applied to a Ni-Cu magmatic deposit
The studied deposit is composed of a mafic-ultramafic suite with cupro-nickeliferous sulphide mineralization associates and has an extensive data base with information such as chemical analyses and density, and such as lithologic description on the borehole samples. This work presents the application of different geostatistics techniques with two distinct ai
Publicado em: 2009
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7. Simulador de meios porosos saturados elastoplasticos / Numerical simulator of saturated elastoplastic porous media
The exploration of mineral resources is growing in importance in the Brazilian economy. Since the environments in which these resources are found are becoming increasingly more complex and challenging for the production phase, currently unavailable knowledge and technologies are required to produce these reserves. In the particular well drilling and completi
Publicado em: 2009
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8. Performance and nutritional characteristics of beef heifers in growing submitted different strategies of supplementation in grazing / Desempenho e características nutricionais de fêmeas de corte em cria e recria submetidas a diferentes estratégias de suplementação em pastejo
With the objective of evaluate the productive performance and nutritional characteristics of beef females in growing, submitted to different supplementation strategies on grazing, four experiments were conducted contemplating the periods of transition rainy-dry, dry, transition dry- rainy and rainy. In the first experiment, its was evaluated the productive p
Publicado em: 2008
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9. Study of techinical and economic feasibility of the biodiesel production in industrial scale in the Brazil / Estudo de viabilidade técnica e econômica da produção de biodiesel em escala industrial no Brasil
The objective of this work is the detailed study of all the relevant factors in the biodiesel Brazi lian production, at industrial scale, involving: raw materials, processes, productive chains, potential market estimation, legislation and incentive governmental programs. Basing on the content of these last evaluations were conducted technical feasibility and
Publicado em: 2007
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10. The politics of the mineral water and evaluation of the energy-environmental indicator : a proposal of public politics for the City of Poa - SP / A politica da agua mineral e avaliação do indicador energetico-ambiental : uma proposta de politica publica para o Municipio de Poa - SP
A água se toma cada vez mais escassa em várias regiões do Mundo, um produto raro e indispensável ao homem, que começa assumir um forte papel sócio-econômico. No Brasil esta realidade tem-se mantido uma constante nos prolongados e intermináveis debates a respeito das melhores soluções dentro do cenário político-institucional. A política da água
Publicado em: 2006
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11. Avaliação química e térmica de erva-mate: uma contribuição para a sustentabilidade na reserva indígena kaiowá e guarani, Caarapó, MS
The present work objectified the thermal evaluation (TG/DTG and DSC), quantification of the mineral elements for atomic absorption and text of caffeine of the native lineages of grass kills (Ilex paraguariensis St. Hil.), to allow the monitoramento and to complement to the genetic of these lineages in field, in order to allow the election of lineage most pro
Publicado em: 2006
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12. UMA PROPOSTA DE INDICADORES DE DESEMPENHO NA ÁREA INTERNACIONAL DA PETROBRAS: UMA ABORDAGEM SOB O PONTO DE VISTA LOGÍSTICO / A PROPOSAL OF PERFORMANCE INDICATORS IN THE PETROBRAS´S INTERNATIONAL AREA: UN APPROACH UNDER A LOGISTICS CONCEPT
PETROBRAS, the greatest brazilian company and one of the twelve world´s biggest oil companies, is extending its presence in the international area, as a way to pursue the objectives established in its strategical plan. Acting in countries rich in mineral resources, some of them, however, lacking the necessary technology and specialized man power, Petrobras
Publicado em: 2005