Engine Induction
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Utilização de filtro neural adaptativo para eliminar níveis de CC na estimação do conjugado eletromagnético em motores de indução trifásico / APPLICATION OF AN ADAPTIVE NEURAL FILTER NETWORK IN ORDER TO CUT OFF THE DC COMPONENT TO ESTIMATE THE ELECTROMAGNETIC TORQUE OF THREE-PHASE INDUCTION MOTORS
Apresenta-se neste trabalho um estudo do emprego de rede neural ADALINE funcionando como notch filter, aplicada na estimação do fluxo estatórico para consequente obtenção do conjugado eletromagnético de Motores de Indução Trifásicos (MIT). A estimação do fluxo do estator foi feita por meio do modelo de tensão da máquina de indução, em que é a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2012
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2. Analise de viabilidade de troca de motores eletricos superdimensionados e a influencia da energia reativa / Analysis of feasibility of the change of super dimensioned electrical engines and the influence of reactive energy
This study shows the importance of the electrical engine of triphasic induction rotor (squirrel cage), which is the main responsible for the waste of electrical energy in industry; it presents its electrical and mechanical characteristics and its evolution along the years, as well. The study describes the problem of the super dimensioning of these engines th
Publicado em: 2008
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3. Acionamento vetorial de motores de indução trifásicos com enfraque-cimento de campo e maximização do conjugado por ampère
This work investigates the operation of three phase induction motors in field weakening and high speed regions. Maximum torque per ampère is imposed by using an indirect vector control strategy. Mathematical models that accounts for magnetic saturation is used for simulations and adjustment of controllers used in control algorithm. The driving structure is
Publicado em: 2008
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4. Avaliação termoanalítica da eficiência de antioxidantes na estabilidade oxidativa do biodiesel de mamona
The biodiesel is defined as the mono-alkyl ester derived from long-chain fatty acids, from renewable sources such as vegetable oils or animal fat, whose use is associated with the replacement of fossil fuels in diesel engine cycle. The biodiesel is susceptible to oxidation when exposed to air and this process of oxidation affects the quality of fuel, mainly
Publicado em: 2007
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5. Action of conservation of energy applied to one plants composed industrial of induction motors / Ações de conservação de energia aplicadas a uma planta industrial composta de motores de indução
The objective of the present research, from a data set of electric motor collected in a regimen of work, give its contribution to the study on industrial electrical motors energy saving. It present the three-phase induction motor, the various issues of its industrial use and the electric parameter set collected are then presented. Field of work was elabora
Publicado em: 2006
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6. Gerador de indução associado a inversor PWM operando com frequencia constante
Some alternatives to the three-phase cage-rotor induction machine application in electric power generation were analyzed in this investigation. The proposed generation systems ensure satisfactory energy quality, as they are able to maintainbalanced three-phase voltage, with sinusoidal waveform and constant frequency at 60Hz. These systems are intended to be
Publicado em: 1999
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7. Tyrosine phosphorylation of the Helicobacter pylori CagA antigen after cag-driven host cell translocation
Helicobacter pylori strains associated with severe tissue damage and inflammation possess a unique genetic locus, cag, containing 31 genes originating from a distant event of horizontal transfer and retained as a pathogenicity island. The cag system is an Helicobacter-specific type IV secretion engine involved in cellular responses like induction of pedestal
The National Academy of Sciences.
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8. Proteomics and Pathway Analysis Identifies JNK Signaling as Critical for High Linear Energy Transfer Radiation-induced Apoptosis in Non-small Lung Cancer Cells*S⃞
During the past decade, we have witnessed an explosive increase in generation of large proteomics data sets, not least in cancer research. There is a growing need to extract and correctly interpret information from such data sets to generate biologically relevant hypotheses. A pathway search engine (PSE) has recently been developed as a novel tool intended t
American Society for Biochemistry and Molecular Biology.
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9. Glycogen synthase kinase-3β regulates cyclin D1 proteolysis and subcellular localization
The activities of cyclin D-dependent kinases serve to integrate extracellular signaling during G1 phase with the cell-cycle engine that regulates DNA replication and mitosis. Induction of D-type cyclins and their assembly into holoenzyme complexes depend on mitogen stimulation. Conversely, the fact that D-type cyclins are labile proteins guarantees that the
Cold Spring Harbor Laboratory Press.