Energy Company
Mostrando 1-12 de 129 artigos, teses e dissertações.
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1. CARACTERIZAÇÃO FÍSICA E QUÍMICA DA BIOMASSA USADA COMO COMBUSTÍVEL SÓLIDO EM UMA CALDEIRA
Biomass is a renewable energy source most used in the world, however, depending on the chemical properties and origin of the material used as biofuel, the amount of ash generated during combustion can be high, harming the energetic harnessing. The objective of this study was to characterize chemically and physically biomass: bark, sawdust, and urban pruning;
Quím. Nova. Publicado em: 2021-01
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2. Strategies used to control the costs of underground ventilation in some Brazilian mines
Abstract In an underground mine, the ventilation is responsible for 25% to 50% of its electrical energy consumption. In countries such as South Africa, United States and Canada researchers have started to achieve a significant reduction in energy consumption without neglecting aspects of the quantity and quality of air required for the best performance of th
REM, Int. Eng. J.. Publicado em: 2020-12
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3. Barreiras para prática de atividade física entre mulheres atendidas na Atenção Básica de Saúde
Resumo O objetivo do estudo foi comparar as barreiras para atividade física (AF) entre mulheres participantes e não participantes de um programa de exercícios físicos (EF) da Atenção Básica de Saúde (AB). Estudo transversal realizado em áreas de abrangência em unidades de saúde da AB que ofereciam programa de EF. Foram selecionadas 222 mulheres pa
Rev. Bras. Ciênc. Esporte. Publicado em: 16/09/2019
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4. Regional hierarchies in the sugarcane agribusiness: border movement and the centrality of São Paulo
Resumo O artigo tem como ponto de partida um diálogo com análises que discutem o movimento da fronteira do setor sucroenergético e sua influência no desenvolvimento urbano e regional no interior do território nacional. O argumento é que, apesar da maior dispersão da atividade produtiva, novas desigualdades persistem nesse setor, devido aos centros de
Rev. Bras. Estud. Urbanos Reg.. Publicado em: 22/08/2019
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5. Proposta de um modelo de avaliação e de seleção de fornecedores de manutenção industrial utilizando Fuzzy-TOPSIS
Resumo: A concorrência acirrada entre as cadeias de suprimento tem promovido a necessidade de melhores práticas de desenvolvimento e gestão de fornecedores por parte das empresas. O presente artigo busca propor um modelo de avaliação e seleção de fornecedores de manutenção industrial, através da aplicação de uma técnica de tomada de decisão mul
Gest. Prod.. Publicado em: 23/05/2019
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6. Gestão socioambiental em micro e pequenas indústrias de Pau dos Ferros-RN
Resumo O presente estudo tem por objetivo analisar a percepção de gestores de micro e pequenas indústrias da cidade de Pau dos Ferros-RN acerca de práticas socioambientais. Para tanto, buscou-se verificar se essas empresas fazem uso de gestão socioambiental, identificando suas práticas e apontando motivações, entraves e oportunidades para sua implant
Gest. Prod.. Publicado em: 16/05/2019
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7. Study of the electricity consumption reduction of a compressed air system: the case of a steelmaking company
Abstract This work aims to reduce the energy consumption and thus increase the availability of blast furnace compressors of a steelmaking company, located in Alto Paraopeba region in Minas Gerais state, Brazil, through the elimination of waste points in the compressed air distribution. In order to develop this work, an ultrasound test in the compressed air l
REM, Int. Eng. J.. Publicado em: 2017-12
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8. Simulation of the Mineração Serra Grande Industrial Grinding Circuit
Abstract Increasing throughput during the mining cycle operation frequently generates significant capital gains for a company. However, it is necessary to evaluate plant capacity and expand it for obtaining the required throughput increase. Therefore, studies including different scenarios, installation of new equipment and/or optimization of existing ones ar
REM, Int. Eng. J.. Publicado em: 2017-09
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9. Relationship between uric acid levels and risk of chronic kidney disease in a retrospective cohort of Brazilian workers
Uric acid (UA) levels are increased in patients with kidney dysfunction. We analyzed the association between asymptomatic hyperuricemia and new-onset chronic kidney disease (CKD). A retrospective cohort study was designed to collect data from employees of an energy generation and distribution company in the city of Rio de Janeiro, Brazil, who had undergone t
Braz J Med Biol Res. Publicado em: 07/08/2017
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10. Analysis of combustion efficiency in a pelletizing furnace
Abstract The objective of this research is to assess how much the improvement in the combustion reaction efficiency can reduce fuel consumption, maintaining the same thermal energy rate provided by the reaction in a pelletizing furnace. The furnace for pelletizing iron ore is a complex thermal machine, in terms of energy balance. It contains recirculation fa
REM, Int. Eng. J.. Publicado em: 2016-09
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11. Enzyme Supplementation of Broiler Feeds with Reduced Mineral and Energy Levels
ABSTRACT An experiment was conducted with the purpose of evaluating enzyme blends on the performance, carcass traits, and bone mineralization of broilers. In total, 928 one-day-old Cobb 500 male chicks of were used. A completely randomized design with four treatments with eight replicates of 29 birds each was adopted. The evaluated treatments were: 1- Positi
Rev. Bras. Cienc. Avic.. Publicado em: 2015-12
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12. A decision model for energy companies that sorts projects, classifies the project manager and recommends the final match between project and project manager
Abstract This study presents an integrated model to support the process of classifying projects and selecting project managers for these projects in accordance with their characteristics and skills using a multiple criteria decision aid (MCDA) approach. Such criteria are often conflicting. The model also supports the process of allocating project managers to
Prod.. Publicado em: 24/11/2015