Dissertações: Recent submissions

  • CEZAR, Pedro Henrique Valentim; http://lattes.cnpq.br/1065245224253267 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Desenvolvimento, Tecnologias e SociedadeUNIFEI, 2023-02-27)
    The projects of public managers for works to improve the infrastructure of urban space have been characterized by the use of civil construction techniques, such as, for example, asphaltic paving of streets, including ...
  • MARQUES, Sara Maria; http://lattes.cnpq.br/8596447175041908 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2023-02-15)
    The disorderly use of water resources leads them to depletion, resulting in the emergence of environmental and social issues. Thus, a relevant aspect to be observed in water supply systems are the losses that occur throughout ...
  • ROSA, João Paulo Martins Mansano; http://lattes.cnpq.br/4681092687898367 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - Ciência e Engenharia de MateriaisUNIFEI, 2023-02-08)
    Nowadays, the use of thermoelectric materials could be a promising solution to a global energy crisis, due to its ability to convert thermal energy into electrical energy, based on the Seebeck effect. Due to its intrinsic ...
  • 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 ...
  • 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 ...
  • 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 ...
  • MOTA, Flávio Belizário da Silva; http://lattes.cnpq.br/5426320322030714 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Ciência e Tecnologia da ComputaçãoUNIFEI, 2022-12-13)
    Electronic Participation, or e-Participation, is defined as citizens’ participation in decisionmaking from public administration using Information and Communications Technologies. The e-Participation is a multidisciplinary ...
  • GUEDES, Álvaro Henrique Calazans; http://lattes.cnpq.br/1952187687565839 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2022-12-23)
    The Brazilian industrial sector has suffered great losses due to abrasive wear, since this type of wear is one of the main factors for machinery and equipment breakdown. In order to mitigate this problem, cemented carbides ...
  • ARRUDA, Márcio Vital de; http://lattes.cnpq.br/2062568788503914 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2022-12-12)
    Welding processes may cause undesirable residual stresses and their detection is possible using different methods. Some residual stress detection methods or techniques are destructive or semidestructive, therefore not ...