Dissertações: Recent submissions

  • PAULA, Paulo Júnio de; http://lattes.cnpq.br/9448014920554481 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2020-02-21)
    The approach analyzed the density of continuous functions in the integrable Riemann function and the space of square integrable Riemann function. The analysis shows that the Cc(X) space is dense in the space of the integrable ...
  • SIERRA, Cristian Fabian Loiaza; http://lattes.cnpq.br/4453893481871711 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2020-06-15)
    In this document, we study the relationship that exists between complex dynamics and symbolic dynamics. Speci cally, we describe a geometric method, with which, based on the complex polynomial dynamics of degree d, we ...
  • SILVA, João Henrique Lírio da; http://lattes.cnpq.br/4086165773609169 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2020-09-23)
    This work presents some approaches to the central configurations of the problem of five bodies in the plane with an equilateral triangle in the arrangement of the bodies. Important aspects such as a general geometric ...
  • ESQUIVEL, William Osnayder Clavijo; http://lattes.cnpq.br/3981170373092562 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2020-05-25)
    In this text we study the Einstein equations in the spatially flat spacetimes (Bianchi-I) which are endowed with an extra locally rotational symmetry (LRS). We develop a new local coordinate representation where we use ...
  • ÁVILA, Deysquele do Nascimento; http://lattes.cnpq.br/0398964442040715 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2020-06-10)
    In this dissertation we provide normal forms and all the global phase portraits on the Poincaré disk of two families of systems: reduced Kukles systems of degree 3 with Z2-equivariant symmetry and of Abel quadratic ...
  • FACHINI, Fernando; http://lattes.cnpq.br/3862818185057428 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-10)
    The aim of this master thesis is to compare voltage and system loading mapping capabilities of a variety of regression algorithms, such as Adaptive Network based Fuzzy Inference System (ANFIS), Artificial Neural Networks ...
  • PEREIRA, Julio Patti; http://lattes.cnpq.br/8332052394853009 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2020-12-10)
    The present work consists of the study of two phenomena involved in fluid-structure interaction analysis, that is, the ground effect and Vortex-Induced Vibrations (V.I.V.). The purely Lagrangian Discrete Vortex Method is ...
  • BORGES, Dimitrius Guilherme Ferreira; http://lattes.cnpq.br/2322507982634726 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Ciência e Tecnologia da ComputaçãoUNIFEI, 2020-12-18)
    The number of vehicles on the streets across the world has quickly grown in the last decade, directly impacting how urban traffic is managed. The signalized junctions control is a vastly known and studied problem. Although ...
  • SILVA, Maise Natalia Soares da; http://lattes.cnpq.br/0362871495912225 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-02)
    This work presents an analysis of the insertion of distributed solar photovoltaic generation in the National Electrical System of São Tomé and Príncipe. The study evaluates technical and economic aspects of viability ...
  • OLIVEIRA, Claudio Pereira de; http://lattes.cnpq.br/6455944369743025 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-16)
    There are several reasons for writing a document related to the high voltage direct current transmission system, highlighting the fast and precise controllability of the HVDC and the possibilities of their applications in ...
  • MENDONÇA, Pedro Marcelo de Morais; http://lattes.cnpq.br/9959703622205975 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado - Meio Ambiente e Recursos HídricosUNIFEI, 2020-12-18)
    Electricity generation from renewable energy sources, has been gaining market and confidence in the world and, being the subject of discussions on sustainability in global and local forums, in particular in Brazil, with ...
  • KUKI, Cassia Akemi Castro; http://lattes.cnpq.br/9348811980113082 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-15)
    The introduction of the electricity market at the Brazilian Power System makes the electricity price forecast an important area of research with many challenges to the market players because of its volatility. The ...
  • REIS, João Paulos dos; http://lattes.cnpq.br/5471354649882909 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-18)
    The accelerated expansion of micro and mini distributed generation (MMGD), associated with the net metering system (SCEE), have a negative impact on power distribution companies and consumers who do not have this type of ...
  • MARQUES, Tais Eliane; http://lattes.cnpq.br/1146861594679625 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2020-12-16)
    Considering the importance of studying the current environmental solid waste management systems (MSW) and the effects of different management strategies for the environment, this work aims to carry out a technical and ...
  • WESTIN, Nicolas de Oliveira Perez; http://lattes.cnpq.br/7607259779680425 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2020-12-18)
    Due to the constant evolution of society, with the fast technologies and processes modernization, energy dealerships suffer constant demands to improve their services, culminating in investments in their infrastructure, ...
  • MONTEIRO, Luiz Fernando Ribas; http://lattes.cnpq.br/0794752062606721 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-18)
    The increased insertion of renewable generation, mainly wind and solar, brings new challenges for the planning and operation of electric power systems due to its dependence on climatic conditions. In this perspective, ...
  • SOARES, Paulo Henrique Vieira; http://lattes.cnpq.br/1243549547600118 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-10)
    The protection philosophy of the electric power system has been under great changes due to the evolution of numeric relays, the IEC61850 standard and the arrival of the digital substation (or 4.0) concept. Along with ...
  • MAIA, Nedson Joaquim; http://lattes.cnpq.br/3107199774910677 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-18)
    This work presents a topology of a low power Transconductance Operational Amplifier (OTA) for the compensation of Common Mode Rejection Ratio (CMRR), in which the transistors operate in the strong inversion mode. Initially, ...
  • MACIEL, Regimar; http://lattes.cnpq.br/2772103386839326 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2020-12-15)
    This work aims to propose and validate an architecture of an interval type-2 fuzzy logic systems implemented in FPGA, which meets real-time control applications, with serial processing in the inference mechanisms. This ...
  • HIRAI, Milton Mineo; http://lattes.cnpq.br/9644342911612868 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado Profissional - Engenharia HídricaUNIFEI, 2020-11-19)
    The concepts of iron bacteria and sulfate-reducing bacteria are unknown to most professionals in the generation area of hydroelectric plants, but their corrosive attack is recurrent in dozens of plants. The consequences ...