Estimation Of Costs
Mostrando 13-24 de 69 artigos, teses e dissertações.
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13. Produção de gases de efeito estufa e potencial de geração de créditos de carbono em processos de tratamento de esgoto sanitário
The concept of carbon credits came from the awareness of need to reduce greenhouse gas (GHG) emissions in order to combat the worsening of global warming, discussed and formalized in the Kyoto Protocol. Emission of greenhouse gases as methane, nitrous oxide and carbon dioxide is due to several activities, among them the wastewater treatment, both domestic an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2012
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14. Aplicação de métodos quimiométricos na otimização da extração de Ca, Mg, K, Fe, Zn, Cu e Mn em folhas de braquiária
This work applied a 2² factorial design to the optimization of the extraction of seven elements (calcium, magnesium, potassium, iron, zinc, copper and manganese) in brachiaria leaves, determined by flame atomic absorption spectrometry. The factors sample mass and digestion type were evaluated at two levels: 200/500 mg, and dry/wet, respectively. Principal c
Química Nova. Publicado em: 2012
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15. Modelagem e simulação de reatores autoclave para produção de PEBD
The low density polyethylene (LDPE) is a thermoplastic resin manufactured by high pressure processes, with autoclave or tubular type reactors. The present scenario is of growing demand for LDPE produced at competitive costs, through high performance and capacity plants, so that the process and product development becomes a key factor for the producers, and p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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16. Crescimento, fronteira tecnológica e a hipótese da relatividade do capital humano / Growth, technological frontier and the relative importance of human capital
In recent years several studies have emphasized the importance of human capital for economic development. However, many of these studies have not incorporated the different stages of development to which the economies are found. In this sense, different degrees of proximity to the technological frontier induce the results of economic policy, so that the glob
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/11/2011
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17. Estimador de variações de tensão de curta duração em sistemas elétricos de potência utilizando estratégias evolutivas. / Estimate short duration voltage variation using evolutionary strategies.
A methodology is herein proposed to estimate Short Duration Voltage Variation (SDVV) in electric power systems, caused by electrical faults. To attain this target, values recorded by measurement equipment in specific sites are used. In fact, there are few power quality meters installed in power networks, due to the high cost of such meters. Although these co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/09/2011
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18. Modelagem e simulação do processo de fermentação extrativa a vácuo com uma câmara de flash e separação do CO2 utilizando uma coluna de absorção / Modeling and simulation of the vacuum extractive fermentation process using a flash chamber and an absorption column for CO2 separation
The ethanol, also known as bioethanol, shows positive characteristics for being used as a large scale fuel, mainly because of the relatively low cost, low pollutant impact compared to fossil fuels and its feasibility of being produced from a renewable matrix through fermentation of vegetable origin products. The conventional fermentation process is typically
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011
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19. Uma abordagem Bayesiana para previsão de custos de suporte de projetos de gerenciamento de TI / A bayesian approach to predict support costs of it management projects
Existe uma noção intuitiva de que os custos associados a ações de suporte de projetos de gerenciamento de Tecnologia da Informação (TI), muitas vezes considerados já muito elevados e em crescimento, possuem forte vinculação com esforços empreendidos nas fases de desenvolvimento/implantação e teste. Apesar da importância de caracterizar e compree
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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20. Governança corporativa e valor de instituições financeiras brasileiras
The separation between ownership and control in modern organizations generates conflicts, as the managers do not always act in accordance with the interests of the propertiers. In order to ensure that their interests be served through the maximization of their wealth, owners incur costs of monitoring and control of management. Therefore, corporate governance
Publicado em: 2011
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21. Uma estimativa do modelo DSGE para o Brasil com rigidez real e nominal
According to the emphasis by Dib (2003), recently there has been a growing interest in the development of economic models that outline the role of rigidities in nominal price, based on the optimizing behavior of rational agents in a dynamic, stochastic, general-equilibrium (DSGE) environment. Although, there are advantages shown by these models, it was obser
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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22. MODELO PARA A ANÁLISE ECONÔMICA E FINANCEIRA EM PROJETOS PARA GERAÇÃO DISTRIBUÍDA DE ENERGIA COM FONTES ALTERNATIVAS / MODEL FOR THE ECONOMIC AND FINANCIAL ANALYSIS OF DISTRIBUTED ENERGY GENERATION PROJECTS WITH ALTERNATIVE SOURCES
The implementation of distributed generation (DG) offers many benefits to the society, the electrical sector where they operate, and the consumers connected to the network especially due to their electricity self-production. For this case, proponents normally fight against costs estimation problems in projects of DG. In this way, low-cost and quality pre-fea
Publicado em: 2010
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23. Sistema ambiental aplicado á liberação de efluente radioativo líquido / ENVIRONMENTAL SYSTEM APPLIED TO RADIOACTIVE LIQUID EFFLUENT RELEASE
The current environmental administration considers the productive activity as an environmental system, defined as a group of processes, interactions, parameters and factors involved in the production. This mastering dissertation evaluated the release of the liquid radioactive effluents at Instituto de Pesquisas Energética e Nucleares (ipen), under a systemi
Publicado em: 2009
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24. Target detection on sea surface using orbital SAR images / Detecção de alvos na superfície do mar utilizando imagens SAR orbitais
Target detection over ocean surface is very important to national security, once that Brazilian legal waters are the entrance for thounsands foreign ships every year, representing almost totally the Brazilian international trade. However, due to Brazilian coast size approximately 7,500 km is undoable to patrolling whole coastline only with Brazilian Navy (Ma
Publicado em: 2009