Dissertações: Recent submissions

  • SALOMON, Karina Ribeiro; http://lattes.cnpq.br/3169357924019841 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2003-04-11)
    The energy crisis that Brazil faced in the past years has made the country, whose energy matrix is mainly based on water resources, opt for the use of other primary sources of energy in order to fulfill the demand of ...
  • RESENDE, Leonidas Chaves de; http://lattes.cnpq.br/7342383170952914 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-10-30)
    The regulatory reform of the electric power industry creates an entirely new competitive environment. In this new electricity market, the reliability of services plays a very important role to establish non-deterministic ...
  • PAREDES, Ádrian Enrique Ramón Osório (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-11-25)
    damental importance for the people, industries and for the national economy of a country at all, and moreover for the world with the crescent globalization. It is well known, also, that the loss of this input can result ...
  • GOMES, Leonardo Vinicius; http://lattes.cnpq.br/1341236113737330 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2003-02-21)
    This dissertation has the objectives to develop, to implement and simulate simplified mathematical models of combined cycle, with the intention of subsidizing studies of power system dynamic studies. These components ...
  • PAES, Domingos Sávio Faria; http://lattes.cnpq.br/8902389584704234 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Ciência e Tecnologia da ComputaçãoUNIFEI, 2023-02-27)
    With the increasing dependence on technologies on a daily basis, it is evident the concern to maintain the infrastructures that support its operation, thus guaranteeing a good experience for the end user. Thus, denial ...
  • KANE, Daouda; http://lattes.cnpq.br/5317863496971184 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2002-12-18)
    In Grinding, geometrical irregularities called surface texture and surface integrity are normally controlled. To obtain a good surface texture and better surface integrity, depends to a large extend on choosing the cutting ...
  • ALBUQUERQUE, Valério Oscar; http://lattes.cnpq.br/5396585733252371 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2002-12-19)
    Worldwide, the Voltage Collapse phenomenon are provoking drastic consequencesin the reliable operation of the Electric Power Systems. It can be noted that environmental and economic restrictions, besides of the deregulation ...
  • BASTOS, Ivana Riera Pereira; http://lattes.cnpq.br/3280176121304503 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2023-02-17)
    Ultraviolet Radiation (UVR) is responsible for several physical, chemical and biological processes, both on the surface and in the Earth's atmosphere. In humans, UVR can cause benefits, such as vitamin D synthesis, and ...
  • SILVA, Renner Augusto Pereira da; http://lattes.cnpq.br/6824843345329764 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2023-02-24)
    The objective of this dissertation is to study the Global Asymptotic Stability Problem of vector fields. After presenting and clarifying the problems, a brief review of some topics of the Qualitative Theory of Ordinary ...
  • FAGUNDES, Flávia Fernanda Azevedo; http://lattes.cnpq.br/2104597436520176 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2023-02-16)
    Increases in air temperature projected throughout the 21st century may impact the initial development dynamics of forest species, especially those located in persistent climate change hotspots. To deal with such threats, ...
  • RIBEIRO, João Gabriel Martins; http://lattes.cnpq.br/3824648196218149 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2023-02-16)
    Annually, storms that occur in the Southeast of Brazil generate several disturbances to society. The Mesoscale Convective Systems (MCS) generate material losses and human lives, through the production of flooding, falling ...
  • JAIMES, Mariana Neves; http://lattes.cnpq.br/5535888194604329 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Desenvolvimento, Tecnologias e SociedadeUNIFEI, 2022-08-03)
    The Collective de mulheres Raízes da Terra is a self-organization of the Landless Rural Workers Movement (MST) belonging to the area of settlements and popular camps called Quilombo Campo Grande, located in Campo do Meio-MG. ...
  • MATA, Guilherme Ferreira da; http://lattes.cnpq.br/7769607012636323 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2022-12-14)
    The Brazilian electricity sector is going through a revolution in face of modernization challenges, needs for investments in smart grids, insertion of new technologies and distributed energy resources. In this context, it ...
  • NUNES, Luiz Gustavo Pieve; http://lattes.cnpq.br/1610574543271749 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2023-02-14)
    This paper presents an analysis of the ferroresonance problem that occurs in potential transformers in wind farm substations from high frequency transients, which has been increasingly recurrent in the context of the ...
  • ANTUNES, Mariana de Melo; http://lattes.cnpq.br/6005757304552038 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2023-02-23)
    This work describes an experimental and straightforward technique towards the simultaneous estimation of temperature-dependent thermal conductivity, k, and specific heat, cp, in samples of different metallic materials, ...
  • OLIVEIRA, Thiago Gonçalves de; http://lattes.cnpq.br/2173664097670141 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2023-03-01)
    In order to attend the growth of the biomaterials market, scientific research and technological advances involving these materials are in evidence, with the objective of complementing the use of existing alloys and ...
  • MARCONDES, Luiz Guilherme Prince; http://lattes.cnpq.br/1702897405243372 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2023-02-13)
    In this work, the cloud enhancement effect produced by clouds as an intensification event of solar irradiance reaching the surface was studied using pyranometer data and satellite imagery in a coastal region of Maranhão ...
  • PINHEIRO, Luísa Pereira; http://lattes.cnpq.br/4121555923199534 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2022-12-21)
    With the global increase in energy demand and global concern with climate change on the planet, incentives for research and development of biofuel production processes, such as ethanol, have grown in recent decades, aiming ...
  • SILVA, Gabriel Baioni e; http://lattes.cnpq.br/1708076185104347 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2022-12-15)
    Organic acids are of great importance to the general industry, with a focus on the polymer industry. Among the most promising organic acids are succinic and cis,cis-muconic acids, which are considered building blocks because ...
  • OLIVEIRA, Rodrigo de Paula; http://lattes.cnpq.br/5064246555325769 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2023-02-27)
    The growth of the internet favored the development of electronic marketplaces, online platforms that act as intermediaries in the negotiation process between two independent parties. When inserted in the context of load ...