Dissertações: Recent submissions

  • SALLET, Eduardo Hoisler; http://lattes.cnpq.br/9938152347903814 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2026-02-02)
    This work proposes and implements a methodological framework for the mechanical characterization of a precision rifle chassis subjected to highly transient loading conditions induced by the firing event. The proposed ...
  • PEREIRA, David Marques Pereira; http://lattes.cnpq.br/3912204725215481 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2026-02-24)
    This work investigates the Casimir effect in multiple cavity systems using two complementary theoretical approaches. First, within the framework of integrable quantum field theories, we analyze the massive sine-Gordon ...
  • VIEIRA, Caroline Mayara Sampaio; http://lattes.cnpq.br/2631362676756024 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - Educação em CiênciasUNIFEI, 2026-02-10)
    Faced with a potential environmental collapse and in an attempt to prevent it – or, at best, to minimize or mitigate the catastrophic effects of the changes we have been causing in natural dynamics – many alternatives have ...
  • RIBEIRO, Caio Tertuliano; http://lattes.cnpq.br/3087349766668094 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2026-02-19)
    Hyperparameter tuning is decisive for both predictive performance and computational cost in machine learning models. In binary classification with Extreme Gradient Boosting, tuning is inherently multiobjective: predictive ...
  • MAGALHÃES, João Pedro Pereira; http://lattes.cnpq.br/3388430630622208 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2026-02-24)
    The interest in Quasi Delay Insensitive digital circuits, especially Null Convention Logic circuits, stems from the absence of a need for a global clock signal to control the circuit’s parts. This results in faster, ...
  • BRANDÃO, Elliton Otavio Silva Ribeiro; http://lattes.cnpq.br/3616223865183046 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2026-02-03)
    Power transformers are one of the most important and expensive components of an electrical system. Faults in these devices can directly compromise the efficiency and reliability of the circuit to which they belong. ...
  • CATÃO, Bruno Hercílio de Andrade; http://lattes.cnpq.br/2972405828470202 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2025-09-30)
    The growing integration of wind and photovoltaic power plants into electrical power systems has transformed the global and national energy matrix, bringing new challenges to the planning of the operation and expansion ...
  • ROJAS, Lizzeth Paola Ibañez; https://lattes.cnpq.br/5699956823252733 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - MatemáticaUNIFEI, 2025-12-19)
    The main objective of this dissertation is the study of the article written by M. Bremner and Jiaxiong Hu “On Kruskal’s theorem that every 3×3×3 array has rank at most 5”, where the objective is to show that the rank of ...
  • OLIVEIRA, Carlos Breno Ferreira de; https://lattes.cnpq.br/0351796143575871 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado Profissional – Engenharia HídricaUNIFEI, 2025-10-23)
    Water reuse emerges as a sustainable and strategic solution in the face of increasing water-stress events. In Brazil, although this practice remains underexplored, several sanitation utilities have adopted the principles ...
  • DOMINGUES, Leonardo Ribeiro; https://lattes.cnpq.br/2407943781516885 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2025-10-22)
    The hydrolysis route of aluminum alloys has been gaining prominence for producing green hydrogen in a clean, simple, and in situ manner, reducing costs associated with transportation and storage. However, this route still ...
  • RODRIGUES, José Junior Leão; https://lattes.cnpq.br/0219834773752240 (Universidade Federal de ItajubáBrasilIEM - Instituto de Engenharia MecânicaPrograma de Pós-Graduação: Mestrado - Engenharia MecânicaUNIFEI, 2024-12-11)
    Pilot-induced oscillations, subclass of aircraft pilot couplings (APC), are characterized by interactions between the pilot and an aircraft, which when unstable, result in sustained and/or uncontrollable oscillations from ...
  • SNAIDER, André; https://lattes.cnpq.br/3442401236551138 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2025-12-22)
    The planning, stability and safety of modern Electric Power Systems (EPS) critically depend on the accuracy of dynamic simulations, which require a faithful representation of their components. However, the increasing ...
  • SILVA, Priscila Magela Gomes; https://lattes.cnpq.br/3255544017101798 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado Profissional – Engenharia HídricaUNIFEI, 2025-08-25)
    Population growth has socioeconomic and environmental implications that can put pressure on natural resources, infrastructure, and health services. Thus, the role of smart cities becomes essential for efficient resource ...
  • GHISLENI, Jordana; https://lattes.cnpq.br/5356823244140537 (Universidade Federal de ItajubáBrasilIRN - Instituto de Recursos NaturaisPrograma de Pós-Graduação: Mestrado Profissional – Engenharia HídricaUNIFEI, 2025-08-29)
    Brazil is heavily dependent on hydroelectric power, making efficient plant management essential for the security of the electrical system. Operating these facilities requires planning that considers periods of high flow, ...
  • SERAFIM, Alexandre do Prado Caldas; https://lattes.cnpq.br/5773051880544140 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - Educação em CiênciasUNIFEI, 2025-10-08)
    The extension project named Hoje vi um cientista (Today I saw a scientist) promotes meetings at the university between scientists and Basic Education students, aiming that this proximity may foster a more realistic perception ...
  • SIQUEIRA, Pedro Henrique Fonseca; https://lattes.cnpq.br/7696747199415764 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Ciência e Tecnologia da ComputaçãoUNIFEI, 2025-07-17)
    High-voltage circuit breakers are critical components in the operation and protection of electrical power systems, ensuring the safe performance of the grid. The integrity of their auxiliary circuits, particularly the ...
  • SAMPAIO, João Herbes da Silva; http://lattes.cnpq.br/1774881680296700 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPPG - Programas de Pós Graduação - ItajubáUNIFEI, 2025-12-17)
    The Brazilian Defense Industrial Base (BID) plays a strategic role in ensuring national sovereignty, especially considering the growing global geopolitical instability. However, the sector faces structural challenges in ...
  • TURRIONI, André Silveira; http://lattes.cnpq.br/4853103075864224 (Universidade Federal de ItajubáBrasilIEPG - Instituto de Engenharia de Produção e GestãoPrograma de Pós-Graduação: Mestrado - Engenharia de ProduçãoUNIFEI, 2025-12-01)
  • REIS, José Anderson dos; http://lattes.cnpq.br/3923512892702724 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2025-12-12)
    Climate change poses significant threats to bee populations, making continuous monitoring of hive activity essential for both apiculture management and ecological research. This work presents an innovative and non-invasive ...
  • SANTOS, Igor Roberto dos; http://lattes.cnpq.br/0335053833577167 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2025-11-07)
    This work presents the study, and design of the following non-isolated DC-DC converters: quadratic buck converter (QBC) and hybrid quadratic buck converter (HQBC). The converters were analyzed qualitatively and quantitatively ...