PPG - Programas de Pós Graduação: Recent submissions

  • VILLANUEVA, JacKelyne Lisset Medina (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2022-12-16)
    The aim of this study was to investigate the influence of the etch-stop time on the structural and optical properties of multilayer structures and their passivation to avoid aging effects. Structural analysis by scanning ...
  • GIFFONI, Rony Leite; http://lattes.cnpq.br/5308105940248797 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-11-08)
    Over the years, the reduction of the power supply voltage has become a main trend in the design of VLSI integrated circuits. This has been driven individually or collaboratively by technology, power management and market ...
  • CARDOSO, Carlos Henrique Rodrigues; http://lattes.cnpq.br/7241921795738753 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-11-14)
    This paper shows a process, or model, of software development based on UML, focusing the practical use of UML diagrams. This process generates diagrams step by step so it can change the development activities interconnected. ...
  • BASTOS, Paulo Roberto Ferreira de Moura; http://lattes.cnpq.br/0490391460121565 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2002-12-11)
    The "Portfolio Theory" has been largely employed on stock markets, aiming to improve the relation between risk and return. This theory identifies many possible investment combinations once it's associated with the idea ...
  • LIMA, Roberth dos Santos; http://lattes.cnpq.br/3510801288386267 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2002-12-11)
    This work presents a standardizing proposal for Electrical Projects of small hydroelectric central and it has as objective to optimize some solutions for the most cases, considering the great diversity of options. The ...
  • GALLI, Marcos; http://lattes.cnpq.br/3358393116718446 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2002-11-18)
    This work describes a didactic test rig both for simulation of a control system and for studies thermal exchange in a shell and tube type heat exchanger enabling simulation of several configuration of flow currents. ...
  • CARVALHO, Fabiano Valias; Lattes: http://lattes.cnpq.br/7210105269537510 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-12-03)
    The purpose of this work is the implementation of a method for estimation of the dynamic torque to induction motor, using the three phases voltages and currents samples, with a DSP (Digital Signal Processor) based circuit ...
  • RICCI, José Eugênio Rios; http://lattes.cnpq.br/5718165836447171 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Doutorado - Engenharia MecânicaUNIFEI, 2002-09-20)
    The aim of this work is to simulate numerically the two-dimensional, incompressible, unsteady flow around a body of arbitrary shape in the presence of a ground plane. The fluid is Newtonian, with constant properties. ...
  • PIRANI, Marcelo José (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Doutorado - Engenharia MecânicaUNIFEI, 2003-03-18)
    By using the finite volume method and SOLA algorithm, the study of turbulent twodimensional flow in a toroidal regenerative turbomachine is carried out. The equations representing the movement in cartesian coordinates ...
  • PETRUCCI, Denis Rinaldi; http://lattes.cnpq.br/1984194112324472 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Doutorado - Engenharia MecânicaUNIFEI, 2003-05-21)
    In this work, two inverse methods for isolated airfoil and turbomachinery cascades design are presented. The first method is based on an iterative correction algorithm with an efficient panel technique for potential flow ...
  • HONÓRIO, Leonardo de Mello; http://lattes.cnpq.br/4319412527458142 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Doutorado - Engenharia ElétricaUNIFEI, 2002-03-07)
    This thesis studies three topics related to voltage collapse: Load margin increase, load shedding and sensitivity analysis. For each study, optimization techniques are employed. For load margin increase, a new strategy ...
  • CARDOZO, Ricardo Francisco Alonso; http://lattes.cnpq.br/0077843946526379 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Doutorado - Engenharia ElétricaUNIFEI, 2022-12-09)
    Resilience of electrical power systems is a paradigm that has been studied in order to provide continuity to the electrical energy service during the interruption of the main source. This leads to the need to use the ...
  • SANTOS, Erivelton Antonio dos; http://lattes.cnpq.br/0772866667979482 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Doutorado - Engenharia de ProduçãoUNIFEI, 2023-02-02)
    Supply chains are susceptible to uncertainties, such as large-scale natural disasters, manufacturing fires, terrorist attacks, widespread electrical shutdowns, financial and political tension, and wars. Therefore, rising ...
  • CAMPOS, Bruno de; http://lattes.cnpq.br/1825879812869376 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2022-12-16)
    The Paraiba do Sul River Basin (PSRB) is frequently affected by extreme rainfall events, especially by weather systems during its rainy season, leading to financial damage and losses of human lives. The Numerical Weather ...
  • RIBEIRO, Renata de Biasi; 999 999 999 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-11-22)
    The objective of this dissertation is to offer a didactic treatment on basements of Brazilian Legislation on Electric Sector about Power Quality. Analyzes Power Quality under the context of ANEEL’s resolutions no 24/2000 ...
  • MOURA, Exdras Deivys Alves (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2003-10-10)
    The present work it’s divided in three principal part’s:  Study of theory approaching the concepts and features on vehicular suspensions and its components, on ride comfort related to the vehicles and humans, and on ...
  • ALBUQUERQUE, Carlos Alberto de; http://lattes.cnpq.br/5006817155432360 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Doutorado - Engenharia de ProduçãoUNIFEI, 2021-12-10)
    Among the main concerns with environmental issues, this present work highlights two. The first is with the residue of the non-metallic fraction of the printed circuit board (PCB). This residue, despite having one of the ...
  • VILAS BOAS, Hugo oliveira; http://lattes.cnpq.br/7255540327694072 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2022-12-12)
    This work, with the objective of improving the quality of electric power (QEE) in MEA (More Electric Aircraft) distribution systems operating with variable frequency (360 – 800 Hz), addresses an application of a 24-pulse ...
  • TEIXEIRA, Aline Aires; http://lattes.cnpq.br/7182302692528551 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2022-08-29)
    The fuzzy type-2 fuzzy inference system presents a superior performance in relation to other methods for applications in systems with uncertainty. This work presents the architecture of a SIF type-2 that aims to use the ...
  • CAMPBELL, Marcella Barbosa Brandão da Silva; http://lattes.cnpq.br/4517234394209647 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2022-07-22)
    In January 2020, the National Power System Operator started using the DESSEM program. It is a model developed by CEPEL and aims to determine the daily energy dispatch for the operation of hydrothermal systems, including ...