Mines Planning
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Direct sequencing of blocks in stochastic models with multi-mines and multi-destinations
Abstract Mining Scheduling is the one that maximizes profit from mining over time. By means of computational methods, the deposit is discretized in blocks and algorithms are used to consummate this objective. The methods that are widely known nowadays for mining scheduling optimization of a discrete block model were based on graph theory, and among those mos
REM, Int. Eng. J.. Publicado em: 16/09/2019
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2. Environmental and socioeconomic analysis of malaria transmission in the Brazilian Amazon, 2010–2015
ABSTRACT OBJECTIVE To analyze the environmental and socioeconomic risk factors of malaria transmission at municipality level, from 2010 to 2015, in the Brazilian Amazon. METHODS The municipalities were stratified into high, moderate, and low transmission based on the annual parasite incidence. A multinomial logistic regression that compared low with medi
Rev. Saúde Pública. Publicado em: 20/05/2019
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3. The Quest for land at Piranema sand cluster
Abstract The Piranema Sand Cluster, located between the Seropédica and Itaguaí counties of Rio de Janeiro Metropolitan Region, is responsible for 65% of the sand used in construction works of the region and is the home of approximately 47 small mining companies. The construction works in progress in this area make this mining district a critical success fa
REM, Int. Eng. J.. Publicado em: 2018-07
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4. Aspectos sócio-econômico-ambiental do processo de extração do caulim no município de Junco do Seridó-PB
The paper entitled "Socio-Economic and Environmental Process Extraction of Kaolin in the Municipality of Junco do Seridó/PB" is a guided study on the extraction of kaolin in the municipality of Junco do Seridó/PB, which is the largest production center of this mineral in the state Paraíba. This activity is the basis of an extensive and complex supply chai
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011
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5. Analysis of the impact of the operational variability onto execution of a mine plan. / Impacto da variabilidade operacional na execução do plano de lavra.
One of the main challenges for mine planning engineers is to produce operationally feasible mine plans which take into account the practical variability of the mining operation. It is quite common for the mining industry to work with plans that have been based on estimated means or historical values for most of the key operational variables, which although a
Publicado em: 2009
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6. Editorial
This work deals with the Operational Mining Planning in open pit mines with equipment dynamic allocation. This problem consists in determining the number of trips that each truck would do in each mining site as well as deciding in which mining site to allocate the loaders machines, in order to attend the production and quality goals required to the ore produ
Publicado em: 2008
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7. A aqÃicultura como alternativa de reabilitaÃÃo ambiental para Ãreas mineradas na RegiÃo Metropolitana do Recife â RMR e Goiana/PE
Currently, the Mineral Industry seeks to support the sector in models of social and environmental sustainability, because of conservation policies and increasing social demands. To this end, with complex environmental management systems that enable the creation of appropriate conditions (recovery) for future use (rehabilitation) of the exploited area (degrad
Publicado em: 2008
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8. The uses of ants as bioindicators in the environmental monitoring of mined sites revegetation. / O uso de formigas como bioindicadores no monitoramento ambiental de revegetação de áreas mineradas.
As atividades de mineração são o suporte do crescimento e do desenvolvimento econômico da sociedade moderna. Por outro lado, estas atividades são causadoras de consideráveis modificações ambientais. Assim, faz-se necessário o desenvolvimento da Avaliação de Impacto Ambiental, que vise a definição de planos de controle ambiental que garanta a mit
Publicado em: 2007
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9. Planejamento do "mix energÃtico" de geraÃÃo de energia elÃtrica no Brasil : uma avaliaÃÃo da aplicabilidade de otimizaÃÃo linear multiobjetivo no contexto do novo modelo institucional do setor elÃtrico
This dissertation was developed having as premisse to be including and to allow easy understanding of the displayed, preventing, however, the superficiality. It composes of three independent parts that complete themselves, in the case, the chapters 2, 3 and 4, which can be read in the order where to desire, after the introduction of Chapter 1. Each part woul
Publicado em: 2005
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10. Mechanical tillage of mining degraded areas at Jamari National Forest (Rondonia - BR) / Mecanização no preparo de solo em areas degradadas por mineração na Floresta Nacional do Jamari (Rondonia-BR)
The usage of a nation s natural resources directly implies the manipulation of natural environments on the terrestrial surface. In this scenario, estimates indicate that mining contributes to one percent of the degradation of the soils of the planet. It is observable that, although it seems to be a small number, this percentage denotes a high intensity of de
Publicado em: 2005
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11. Gestão mineral e ambiental : contribuições para o planejamento do uso e ocupação do solo no municipio de Iguape (SP) / Mineral and environment management : contributions to the planning of land development in municipal district of Iguape (SP)
The present dissertation quest argue the mineral resources and the environment management in Iguape (S.P.). That is the bigger municipal district in territorial area in the State of São Paulo, and too, environmental complex region where ocurrer many disagreement refering to the planning of land development, considering that the municipal district present ne
Publicado em: 1997
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12. O conflito entre urbanização e mineração de argilas no Municipio de Campinas, estudo de caso : Bairro Santa Lucia
In the last few decades, urbanization process has been restricting the mining of some non-metallic minerals in different regions of the São Paulo State. One of these minerals is the clay used to manufacture structural products such as: bricks, tiles, pipes etc.. These clays have a high volume-to-cost ratio which imposes short transportation distances betwee
Publicado em: 1989