Dissertações: Recent submissions

  • GASPAR, Everaldo Simões; http://lattes.cnpq.br/7200526505335982 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2005-06-01)
    This work presents a development of an equipment to test power semiconductors (diodes and thyristors). These semiconductors are extensively used in static compensators. It is introduced the theoretic foundations about ...
  • SOUZA, Antônio Marcos de; http://lattes.cnpq.br/9259557866385637 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2005-06-10)
    Medical equipment must present a high-level performance with efficiency attested by international regulatory agencies. This type of equipment must operate satisfactorily in electromagnetic environments, having good ...
  • NASCIMENTO, André Wagner Mota; http://lattes.cnpq.br/0835964436492083 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado Profissional - Engenharia de MateriaisUNIFEI, 2005-02-04)
    In this work we have studied oscillating electronic circuit based on negative differential conductivity (NDC), with possibility to present chaos. The Chua’s circuit was chosen for the nonlinear dynamical and chaotic ...
  • SOUZA, Paulo Henrique Oliveira de; http://lattes.cnpq.br/1140359690398541 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - Materiais para EngenhariaUNIFEI, 2004-12-21)
    The conduction properties of polyaniline (PANI) have attracted a considerable attention of the re searchers due to its peculiar electrochemical behavior and good chemical and ambient stability. Ex tensive works about the ...
  • PAIVA, André Oliveira; http://lattes.cnpq.br/4672747062201189 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - Materiais para EngenhariaUNIFEI, 2006-03-03)
    Polyhydroxybutyrate (PHB) is a polymer synthesized by microorganism under nitrogen deficiency and has as main characteristic the biodegradability. Bioactive glasses belong to special systems as SiO2-MgO-CaO-P2O5. A ...
  • MILANEZ, José Renato Castro; http://lattes.cnpq.br/8643478071507738 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2006-09-15)
    MILANEZ, José Renato Castro. Desenvolvimento de um sistema on-line de monitoramento de entreferro utilizando sensores capacitivos. 2006. 158 f. Dissertação (Mestrado em Engenharia Elétrica) – Universidade Federal de Itajubá, ...
  • REZENDE, Leandro Soares; http://lattes.cnpq.br/8307583620397492 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2006-09-29)
    Electric energy utilities around the world have made use of interactive methodologies, in order to plan the expansion of their systems, based on deterministic criteria such as the “N-1”. Usually, it can be observed the ...
  • MOINO, Carlos Alberto Amaral; http://lattes.cnpq.br/8322259998285677 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2006-07-28)
    This dissertation presents the development of a methodology for inverse airfoil design of axial turbomachine cascades by applying optimization algorithms based on Controlled Random Search (CRS algorithms). The airfoil ...
  • CARVALHO, Alexandre Ribeiro Souza; http://lattes.cnpq.br/4566049372894649 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2022-03-03)
    Inverse methodologies continue to be important computational tools for the design of flow machines, despite the sophisticated methods currently available for the analysis of viscous three-dimensional flows. A ...
  • ALBUQUERQUE, Rodrigo Barbosa da Fonseca e; http://lattes.cnpq.br/8519519088025779 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2006-08-18)
    This work presents the development of a low cost computational methodology for the conceptual design optimization of axial-flow hydraulic turbines (propeller turbines). The methodology has been developed with a quasi-two ...
  • DINIZ, David José (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2006-08-04)
    This research aims to analyse all the influences of the Educational Organization in the social economical development in a rural city in the state of Minas Gerais. The specific purposes are approach the social economical ...
  • FREIRES, Alecio Pinheiro; http://lattes.cnpq.br/7516773837176204 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2006-07-13)
    The study broaches the implantation of the company costing system based on activities - ABC of a small size engineering company to identify the values of the installments of indirect expenses and of the profit associated ...
  • SOUZA, Leandro Rodrigues de; http://lattes.cnpq.br/8000189300730841 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Materiais para EngenhariaUNIFEI, 2005-10-06)
    Self-assembled quantum dots are in the center of interest of both fundamental and applied research. In this work, van der Pauw resistivity, Hall effect and I(V) measurements are applied to obtain the mobility on a ...
  • SILVA, Sara Talita Sales; http://lattes.cnpq.br/6937393414856538 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2022-03-03)
    Brazil has an underused potential for the generation of biogas and biomethane. Biogas can be used to generate electricity, for heating or, when purified at legislation’s appropriate levels giving rise to biomethane, ...
  • FERNANDES, Marcelo Machado; http://lattes.cnpq.br/7059428261077237 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2006-05-29)
    Six Sigma has been considered one of the most important problem solving quality improvement methodologies to reduce structural problems, among the techniques used around the world for all companies that want to have ...
  • Masseli, Sandro; http://lattes.cnpq.br/7736480532559189 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2005-12-15)
    This job aims to analyze the interests incurring on the hydro-electric reservoirs, proposing mathematics structures which includes legal and social concepts in addition to the monetary economic ones. So, it is presented ...
  • SANTANA, Michel (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2006-07-28)
    This work describes a methodology for the development of the digital control of power converters, where the whole structure – converter and control system – can be modeled in the same environment through the hardware ...
  • PASSOS, Esdras Duarte dos; http://lattes.cnpq.br/7068040492899495 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Materiais para EngenhariaUNIFEI, 2006-02-14)
    Several different sorts of clinical procedures have been developed to cancer therapy during the last century. The classical cancer treatment includes the total excision of tumor and adjacent tissues in combination with ...
  • MACEDO, Julio Cezar Ferreira; http://lattes.cnpq.br/7951545590712895 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2006-07-17)
    The lack of ground that is used like landfill where the wastes are deposited, it’s a great problem in the pulp and paper mills in Brazil and in the world. Primary sludge is a waste produced in the pulping and bleaching ...
  • ALVES, Ana Sofia Viana (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2006-09-20)
    After publishing the law 9.433/97 which establishes the national politic for hydraulic resources, the electric sector has lost the full control in operating its reservoirs, being now responsibility of Water National ...