Eletric Methods
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Preincisional eletric stimulation on healing in rats skin. / Estimulação elétrica pré-incisional na cicatrização em pele de rato.
BACKGRAUND: In vitro studies have demonstrated that electrical current may affect the proliferation of fibroblast, and synthesis of collagen fibers. OBJECTIVE: To evaluate the effects of preoperative electrical stimulation on cutaneous wound healing in rats. METHODS: Forty rats were divided into two groups of 20 animals each. In the control group, an incisio
Publicado em: 2009
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2. Clustering analysis of the data of DFA profiles of eletric induction in oil wells / Análise de agrupamentos dos dados de DFA oriundos de perfis elétricos de indução de poços de petróleo
The main objective of this study is to apply recently developed methods of physical-statistic to time series analysis, particularly in electrical inductions profiles of oil wells data, to study the petrophysical similarity of those wells in a spatial distribution. For this, we used the DFA method in order to know if we can or not use this technique to charac
Publicado em: 2009
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3. Estudo de fluxo de potencia com aplicação de metodos diretos na resolução de sistemas de equações lineares / Study of power flow with application of direct methods in the resolutions of systems of linear
Considering a large-scale and complex Brazil electric power system, the present work concerns the study of power flows, through simulations with the 30 and 118 bus system of the IEEE (Institute of Electrical and Electronics Engineers) applying the uncoupled methods and the direct methods of matrix decomposition...Note: The complete abstract is available with
Publicado em: 2008
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4. Analytical methods for analysis of induction generators connected to eletric power distribution systems / Metodos analiticos para analise de geradores de indução conectados em redes de distribuição de energia eletrica
This thesis presents the development of analytical methods for analysis of squirrel-cage induction generators connected to distribution systems. It was developed analytical methods for evaluation of the following technical issues: large-disturbance stability analysis of induction generators; small-disturbance stability analysis of induction generators; deter
Publicado em: 2008
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5. LOAD MAXIMIZATION TOOL FOR ELECTRIC SYSTEM FLUENT RESTORATION / FERRAMENTA PARA MAXIMIZAÇÃO DE CARGA NA FASE FLUENTE DE RECOMPOSIÇÃO DE SISTEMAS ELÉTRICOS
This work proposes a methodology to help the studies related to eletric power systems fluent restoration. At this early restoration stage, power system is structured in long transmission corridors and the reactors set definition is one of the adopted strategies for overvoltages disposal. The proposed tool, based on an optimization model, aims the network pro
Publicado em: 2008
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6. Photoelastic analysis of stress transmitted from implant-supported frameworks achieved by cilinders lutingand laser welding techniques before and after eletric discharge machining / Analise fotoelastica das tensões induzidas por infra-estruturas implanto-suportadas obtidas pelas tecnicas de cimentação dos cilindros e soldagem a laser, antes e apos eletroerosão
The purpose of the study was to evaluate the passive fit of fixed implantsupported prothesis titanium frameworks, through photoelastic stress analysis. Two frameworks welded in commercially pure titanium (Tritan® -Dentaurum -Germany) were fabricated by two methods based on a metal model composed of five analogous Micro-Unit (Conexão -São Paulo): Framework
Publicado em: 2007
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7. "Investigação da percepção dolorosa em pacientes com autismo de alto funcionamento" / Investigation of pain perception in patients with high-functioning autism
Reduced pain sensitivity is widely reported to be a common feature of children with autism. The current research was carried out at the Department of Psychiatry from the University of São Paulo Medical School, with collaboration of the Odontology School. The aim of the study was to investigate responsiveness to pain in 20 patients with high-functioning auti
Publicado em: 2005
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8. Storage of Coffea arabica L. and Coffea canephora Pierre seeds submitted to different demucilage and drying methods / Armazenabilidade de sementes de Coffea arÃbica L. e Coffea canephora Pierre, submetidas a diferentes mÃtodos de desmucliagem e ssecagem
The drying and demucilage methods can influence in seed coffee quality, mainly based in the functions of these ones. The objective of this research was to evaluate the influence of different methods of demucilage and drying, as wel as the interaction of these factors on quality and potential storage of seeds of C. arabica cv. Acaià and C. canephora cv. Robu
Publicado em: 2005
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9. Planejamento do "mix energÃtico" de geraÃÃo de energia elÃtrica no Brasil : uma avaliaÃÃo da aplicabilidade de otimizaÃÃo linear multiobjetivo no contexto do novo modelo institucional do setor elÃtrico
This dissertation was developed having as premisse to be including and to allow easy understanding of the displayed, preventing, however, the superficiality. It composes of three independent parts that complete themselves, in the case, the chapters 2, 3 and 4, which can be read in the order where to desire, after the introduction of Chapter 1. Each part woul
Publicado em: 2005
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10. Potencials and electric fields inside and outside resistive conductors carrying steady currents / Potenciais e campos eletricos dentro e fora de condutores resistivos com correntes constantes
In Chapter 1 we present an introduction about the electric field inside and outside resistive conductors carrying steady currents. We also discuss the distribution of surface charges that maintains the current fiow and its relation with these electric fields. We present some experiments related with these electric fields outside conductors with steady curren
Publicado em: 2005
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11. STRATEGIES TO EXPLORE NUCLEAR-ELETRIC ENERGY IN BRAZIL / ESTRATÉGIAS PARA GERAÇÃO DE ENERGIA NUCLEOELÉTRICA NO BRASIL
Since 1996, the basic structure of the Brazilian electric sector has been changing dramatically. However, these changes have not brought great improvement in terms of electric energy diversification, considering that the sector`s energetic matrix is basically concentrated in a single source - the hydraulic. The objective of this study is to develop an analyt
Publicado em: 2004
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12. Geophysics investigations in the Border of the Sao Paulo sedimentary Basin, using GPR and eletric methods. / Investigações geofísicas na borda da bacia sedimentar de São Paulo, utilizando-se GPR e eletrorresistividade.
Nesta pesquisa foram empregados os métodos geofísicos Ground Penetrating Radar GPR e Eletrorresistividade visando caracterizar geologicamente os sedimentos e o topo do embasamento granito-gnáissico da Bacia Sedimentar de São Paulo. Além disso, foram realizados furos de sondagens a trado até 5m de profundidade, visando detalhar a subsuperfície rasa.
Publicado em: 2002