Dissertações: Recent submissions

  • ALMEIDA, Daniel Carneiro de; http://lattes.cnpq.br/9857185236578523 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2023-02-17)
    Distributed Generation (DG), especially photovoltaic solar energy, has been growing a lot in recent years because it has a leveled cost of implementation lower than fossil sources. Aneel Normative Resolution No. 482/2012, ...
  • ALFAICA, Ajumar Omar; http://lattes.cnpq.br/7034476019200940 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2023-05-24)
    Small Hydroelectric Plants (SHPs) make up 3.3% of the Brazilian electricity grid, and are becoming more popular given their lower environmental impacts compared to larger hydroelectric plants. The energy generated by SHPs ...
  • VELOZO, Douglas Barros; http://lattes.cnpq.br/0525136391584301 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado Profissional - Engenharia HídricaUNIFEI, 2023-12-19)
    In the current scenario where the Brazilian electrical matrix is still heavily dependent on hydroelectric generation, accounting for approximately 61.9% of energy generated in 2022, actions aimed at increasing the availability ...
  • PAULA, Gabrieli Silva Ney de; http://lattes.cnpq.br/1380399700569253 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2024-02-26)
    Nodes are equilibria of a planar differential equation or vector field whose eigenvalues have the same sign. Star nodes are nodes whose eigenvalues are equal and nonzero. Limit cycles are closed and isolated orbits in ...
  • ABREU, Laís Gomes Barreto; http://lattes.cnpq.br/7548820773666227 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2023-12-21)
    This study focuses on the Brazilian energy scenario and highlights the progressive increase in the use of renewable sources in the country's electrical energy matrix. The main objective of this study is to contribute to ...
  • CALIARI, Juliana Cássia de Souza; http://lattes.cnpq.br/1742078085720645 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2024-02-06)
    The National Accreditation Organization developed an evaluation manual for health services, whose main criteria focused on Administrative Management, People Management and Care. Initially, in 1998, this program focused on ...
  • SÁNCHEZ, Jefferson Fernando Zambrano; http://lattes.cnpq.br/4461853459290967 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2023-12-01)
    In this paper we will give a detailed proof of the Variational Principle which states that the topological entropy of a continuous application defined in a compact metric space is equal to the supremum of the entropies ...
  • CRUZ, Thales Willian; http://lattes.cnpq.br/3267862705740438 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-03-08)
    This work aims at studying analogous models for the propagation of light in nonlinear theories of electromagnetism. To do this, we first calculate the equations of motion and the momentum-energy tensor of an arbitrary ...
  • CANALES, Katia Yesica Tineo; http://lattes.cnpq.br/6535374165370098 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2023-12-14)
    In the pursuit of sustainable energy solutions, the transition to a low-carbon economy has become a central objective for countries worldwide. This work presents a comprehensive technical, economic, and environmental ...
  • RAMOS, Liomar Carvalho; http://lattes.cnpq.br/6395113089070363 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2024-02-29)
    In this work, we present a study of the abstract theory of multivalued monotone dynamical systems on a complete metric space and the application of this theory to a differential equation without uniqueness of solution.
  • SILVA, Soraia Cristina da; http://lattes.cnpq.br/6075489464474040 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado Profissional - AdministraçãoUNIFEI, 2023-12-11)
    With the regulation of access to information in Brazil, through the Access to Information Law (LAI), procedures were established for transparency in public administration, as a way of ensuring the fundamental rights of ...
  • MATOS, Fabienne Mara Ferreira; http://lattes.cnpq.br/3420514655032398 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado Profissional - AdministraçãoUNIFEI, 2024-02-22)
    Amidst the global economic crisis, financial management becomes paramount. In Brazil, despite the downward trend in inflation, gaps in financial literacy persist, impacting the well-being of over 71 million Brazilians who ...
  • RANGEL, Bruno de Souza; http://lattes.cnpq.br/2680443151477507 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2024-02-19)
    In this dissertation, rstly, we show that a polynomial di erential system of even order does not have a global center. Next, we characterize all Liénard polynomial systems having a global center at the origin. In particular, ...
  • FRANCO, Murilo Leandro; http://lattes.cnpq.br/1083017557123649 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2023-12-15)
    This work presents a case study on the application of a voltage source converter in an industrial microgrid, using multilevel topology in a Back-to-Back arrangement. The main purpose is to understand whether the application ...
  • CARVALHO, Raffael Cleisson de; http://lattes.cnpq.br/8993852934865449 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Ciência e Tecnologia da ComputaçãoUNIFEI, 2023-12-18)
    Public consultation is a direct democracy device that aims to allow the population to participate in decision-making in various areas of public policy. In Brazil, the Fiscal Responsibility Law establishes that a public ...
  • GUERRINI, André Belluco; http://lattes.cnpq.br/7416025567367379 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2023-11-20)
    Aeroderivative gas turbines are widely used on Floating Production Storage and Offloading (FPSO) oil and gas production platforms. These units serve as production, storage, and oil transfer facilities. These turbines are ...
  • VENTURA, Charly Braga; http://lattes.cnpq.br/9840433346213682 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Ciência e Tecnologia da ComputaçãoUNIFEI, 2023-12-15)
    The world’s demand for coffee increases every year, reaching 178.5 million 60 kg bags in the period 2022-2023, an increase of 1.7% compared to the previous period 2021-2022. The total production of Brazil’s coffee harvest ...
  • FERNANDES FILHO, Ricardo Alexandre; http://lattes.cnpq.br/5218561645780587 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-02-26)
    In this thesis, a qualitative analysis is proposed on how theories related to gravity have changed over time until reaching the well-known modified theories of gravitation, demonstrating the power they hold. The aim is ...
  • DIAS, Ranulfo da Silva; http://lattes.cnpq.br/0504152872750536 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-02-08)
    The Glioblastoma Multiforme (GBM) is an aggressive brain cancer with a low survival rate. Non-invasive brain stimulation is a promising approach for treating GBM, but there is still much to be learned about its effectiveness ...
  • SALES JUNIOR, Celso Antonio Bittencourt; http://lattes.cnpq.br/1826220299079724 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia de EnergiaUNIFEI, 2024-02-09)
    The ongoing energy transition has resulted in an increased focus on renewable energy systems and their viability for Distributed Generation (DG) applications. In this context, small-scale wind turbines have drawn significant ...