Electric Industry
Mostrando 1-12 de 102 artigos, teses e dissertações.
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1. Enabling design characteristics and budget usefulness
Abstract Purpose This study aims to investigate the influence of budgeting design characteristics on perceived budgeting usefulness, based on the enabling-coercive framework. Design/methodology/approach This paper develops a survey in one large publicly-listed Brazilian company that operates in the electric utility industry. The sample comprises 75 middle
RAUSP Manag. J.. Publicado em: 2021-03
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2. Acid Hydrolysis of Regular Corn Starch under External Electric Field
The main objective of the present work is the investigation of a new method for starch hydrolysis. For this, we proposed the acid hydrolysis under the action of an external electric field, able to develop a faster reaction than the conventional one. Corn starch with 18% amylose was subjected to a fixed voltage, varying the external electric field application
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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3. The effects of financial leverage and debt maturity on the investments of Brazilian electric sector companies
Resumo Objetivo: Este trabalho teve como objetivo averiguar como as empresas do setor de energia elétrica realizam a escolha do nível de alavancagem financeira e maturidade das dívidas, com o intuito de amenizar o problema de subinvestimento. Metodologia: Foi aplicada a técnica de regressão linear múltipla em um modelo de painel dinâmico para verifi
Rev. bras. gest. neg.. Publicado em: 23/09/2019
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4. Influência da composição do gás de proteção nas tensões residuais de juntas de aço DP600 soldadas pelo processo GMAW
RESUMO A indústria automobilística vem investindo em novos processos de fabricação que melhoram a produtividade sem perda da qualidade. Entretanto, a presença de tensões residuais, geradas em todos os processos de fabricação, constitui um dos grandes problemas encontrados na indústria metal mecânica, pois estas podem se somar às tensões de carreg
Matéria (Rio J.). Publicado em: 16/09/2019
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5. Solar photovoltaic energy applied to ferroalloy industry
Abstract The Brazilian ferroalloy industry faces a highly competitive scenario in the foreign market. Among the key factors to determine the price of its products, electric energy stands out as one of the main inputs. So, the possibility of energy being unavailable or having high prices causes a direct impact in the ferroalloy chain. On the other hand, the r
REM, Int. Eng. J.. Publicado em: 2019-06
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6. Influência da composição do gás de proteção nas tensões residuais de juntas de aço DP600 soldadas pelo processo GMAW
RESUMO A indústria automobilística vem investindo em novos processos de fabricação que melhoram a produtividade sem perda da qualidade. Entretanto, a presença de tensões residuais, geradas em todos os processos de fabricação, constitui um dos grandes problemas encontrados na indústria metal mecânica, pois estas podem se somar às tensões de carreg
Matéria (Rio J.). Publicado em: 20/05/2019
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7. Protection of Grid Connected Photovoltaic Systems (GCPVS)
ABSTRACT Installations of photovoltaic systems connected or not to the electrical network have become increasingly popular, but it is often carried out by unqualified people using low quality components. The present study aims to describe the methodology adopted for the protection of grid connected photovoltaic systems (GCPVS) and the implications caused by
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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8. Caracterización del proceso de fabricación de macroporos sobre sustrato de silicio por método electroquímico
ABSTRACT In the present work, the fabrication process of a set of micropores on crystalline silicon wafers manufactured through wet etching technique was studied. The influence of different control factors such as voltage, temperature and braking agent on the specific characteristics of formation was evaluated. An exhaustive analysis of the evolution of elec
Matéria (Rio J.). Publicado em: 19/07/2018
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9. Efecto de los parámetros de soldadura en mallas de acero electrosoldadas
ABSTRACT Reinforced concrete is the most widely used material in construction industry. Generally concrete is reinforced with ribbed bars. In certain applications, it is desirable to use welded mesh and are used in most reinforced concrete structures (buildings, roads, tunnels and prefabricated components). Welded mesh are generally electrowelded (PW: Projec
Matéria (Rio J.). Publicado em: 19/07/2018
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10. Carbothermic reduction of Electric Arc Furnace Dust via thermogravimetry
Abstract Electric Arc Furnace Dust (EAFD) is a solid waste originated from electric steelmaking furnaces. Currently, according to some authors, there is an estimated generation of 15 to 25 kg of dust per ton of steel produced. The formation of the dust is related to the following steps of the process: furnace charge, metal volatilization, iron vaporization u
REM, Int. Eng. J.. Publicado em: 2018-07
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11. Application of methodology for the adequacy of the electrical motor's power sizing: permanent and transient analysis
Abstract The suitability of the motive force contributes to the efficient use of electrical energy. On the other hand, the inadequate size of electric motors is directly connected to increased investment and running costs. This article presents the theory and mainly the application of a methodology for the adequacy of the motive power. The research was condu
REM, Int. Eng. J.. Publicado em: 2018-04
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12. Experimental Study of Tensile Test in Resistance Spot Welding Process
Abstract Resistance spot welding (RSW) is a widely used joining process for fabricating sheet metal assemblies in automobile industry .In comparison with other welding processes the RSW is faster and easier for automation. This process involves electrical, thermal and mechanical interactions. Resistance spot welding primarily takes place by localized melting
Lat. Am. j. solids struct.. Publicado em: 2016-06