Dissertações: Recent submissions

  • 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 ...
  • 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. ...