Economical Assessment
Mostrando 1-12 de 52 artigos, teses e dissertações.
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1. Microstructure Evolution and Creep Properties of 2.25Cr-1Mo Ferrite-Pearlite and Ferrite-bainite Steels After Exposure to Elevated Temperatures
2.25Cr-1Mo steels are widely used in thermoelectric power plants. Under operational temperatures, their properties degrade due to microstructural changes related to carbide coalescence and stoichiometric transformations. The extent of such microstructural changes is controlled by stress, temperature and time. Therefore, these factors can be used to evaluate
Mat. Res.. Publicado em: 26/01/2017
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2. Risk Assessment for Hexamine Nitration into RDX
ABSTRACT: Explosives are widely used in extraction of ores, melts and fuels and in the safe and economical demolition of structures. These applications demonstrate the value of explosives to society and the reason why they are manufactured worldwide despite the hazard of their preparation. Hence, this paper focuses on the manufactory of the military explosiv
J. Aerosp. Technol. Manag.. Publicado em: 2014-12
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3. Conversion of by-products from the vegetable oil industry into biodiesel and its use in internal combustion engines: a review
Biodiesel produced from by-products and waste materials can be an economical way of reducing traditional oil consumption and environmental problems. The by-products from the vegetable oil refining industry such as soapstock, acid oil and fatty acid distillates are suitable for producing biodiesel. The present work is a survey related to the use of these by-p
Braz. J. Chem. Eng.. Publicado em: 2014-06
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4. Low and medium temperature fuel cells: experimental tests and economic assessment / Low and medium temperature fuel cells: experimental tests and economic assessment
This Masters dissertation aims to study technical potentialities of Fuel Cell technology, including the economical benefits that can provide compared with public grid as well. Thus, the dissertation has been focused in two main parts: the first concerns in an experimental approach to supply electrical power to the public grid using a Polymer Electrolyte Memb
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/12/2012
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5. The genus Crataegus: chemical and pharmacological perspectives
Traditional drugs have become a subject of world importance, with both medicinal and economical implications. A regular and widespread use of herbs throughout the world has increased serious concerns over their quality, safety and efficacy. Thus, a proper scientific evidence or assessment has become the criteria for acceptance of traditional health claims. P
Rev. bras. farmacogn.. Publicado em: 16/08/2012
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6. Numerical forensic model for the diagnosis of a full-scale RC floor
The paper presents the results of an investigation on the diagnosis and assessment of a full-scale reinforced concrete floor utilizing a 3-D forensic model developed in the framework of plasticity-damage approach. Despite the advancement in nonlinear finite element formulations and models, there is a need to verify models on nontrivial challenging structures
Lat. Am. j. solids struct.. Publicado em: 2012-04
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7. A desigualdade em saúde e o baixo peso ao nascer : uma revisão sistemática com metanálise
Considering the hypothesis that an excessive use of new technologies and the lack of heath resources can present similar outcomes concerning low weight rates at birth (LWB), it was analyzed the association between the social standing, which was obtained from the maternal schooling, profession and income, and the low weight rates at birth. It deals with a lit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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8. Uso de materais não convencionais para base de pavimentos asfálticos no muunicípio de Aparecida de Goiânia - GO / The use of non-conventional materials for asphalt pavements base in the city of Aparecida de Goiânia-GO
The city of Aparecida de Goiania-GO has a current estimate of 16,782,313 m of urban roads, and there are still 51.5% to be paved. However, the technical staff of the mayor is facing a challenge related to the purchase of lateritic gravel for paving of these streets. Taking into account that most roads in the city has a low volume of traffic (N ≤ 5.105)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2011
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9. Balanço energético de um sistema integrado lavoura-pecuária no cerrado.
O presente trabalho teve como objetivo avaliar um sistema integrado lavoura-pecuária sob o ponto de vista dos fluxos globais de energia. Em uma área experimental da Fazenda Capivara, localizada na Embrapa Arroz e Feijão, foi realizada uma avaliação econômica que serviu de base para esta primeira análise energética, aqui apresentada, de uma situação
Seropédica: Embrapa Agrobiologia. Publicado em: 2011
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10. Aspectos biológicos e morfológicos de Leucanella viridescens (Lepidoptera: Saturniidae: Hemileucinae)
The goal of this work was to describe aspects of the biology and morphology of Leucanella viridescens (Walker, 1855), a polyphytophagous species that is a pest to several crops of economical interest and whose larvae may cause erucism. Biological parameters were obtained under controlled conditions: temperature of 25 ± 1ºC, relative humidity of 70 ± 10%,
Zoologia (Curitiba). Publicado em: 2009-03
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11. Os impactos das transformações econômicas no território local: estudo de caso da Região Metropolitana da Grande Vitória / The impacts of economical transformation in the local territory: case study of the Metropolitan Region of Grande Vitória
This dissertation aimed to develop a critical assessment and conceptual speculation over the urban transformations that have recently occurred in the territory, caused by economic relations transformation due to the newest internationalization stage of Capitalism. The assessment chose the RMGV Greater Vitória Metropolitan Region as a case study to analyze t
Publicado em: 2009
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12. Avaliação da susceptibilidade erosiva da bacia do rio Carinhanha (MG/BA) por meio da EUPS : equação universal de perda de solos
Mathematical models are suitable for a quick and economical assessment of erosion susceptibility. The Universal Soil Loss Equation (USLE), one of the most well-known and used models, predicts erosion susceptibility based on rainfall erosivity (R-factor), slope length (L-factor), slope-steepness (S-factor), cover and management (C-factor), and support practic
Publicado em: 2009