PPG.EGPSA/ITEGAM
URI permanente desta comunidadehttps://rigalileo.itegam.org.br/handle/123456789/1
A comunidade dispõe da produção técnica e científica do Programa de Pós-graduação em Engenharia, Gestão de Processos, Sistema e Ambiental (PPG.EGPSA) do Instituto de Tecnologia e Educação Galileo da Amazônia (ITEGAM), fruto da atividade de pesquisa e desenvolvimento (P&D). É possível acessar os trabalhos de conclusão do programa de pós-graduação, artigos e livros vinculados a pesquisa, desenvolvimento, inovação e extensão.
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480 resultados
Resultados da Pesquisa
Item Influence of Pre-Mechanical Exfoliation on the Synthesis of Reduced Graphene Oxide via the Hummers Method(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) VALADÃO, Suelem Cabral; LEITE, Jandecy CabralThis study investigates the effects of pre-mechanical exfoliation on the synthesis of reduced graphene oxide (rGO) via the Hummers method, employing a hybrid approach combining thermal and mechanical treatments. Initially, graphite was subjected to thermal expansion at 900 °C for 15 minutes, followed by ball milling in the presence of sulfuric acid for 12, 24, and 48 hours. The samples were oxidized using the Hummers method and chemically reduced with ascorbic acid. Characterization was carried out using X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM). Results demonstrated that the combination of treatments significantly influences the structural and morphological properties of rGO, enhancing exfoliation efficiency and improving the quality of the final material. This hybrid approach is a promising strategy for scalable production of graphene-based materials.Item Aplicação da Lógica Fuzzy na Emissão de Notas Fiscais(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) SOARES, Vera Alana Nobre; BRITO JUNIOR, Jorge de Almeida; ALENCAR, David Barbosa de; NASCIMENTO, Manoel Henrique ReisCertificate issued by the Brazilian National Institute of Industrial Property (INPI) for the registration of the computer program entitled Application of Fuzzy Logic in Invoice Issuance. Developed in Python, the software aims to apply fuzzy logic principles to improve invoice analysis and issuance, providing greater precision, automation, and reliability to the process. The registration grants legal protection for 50 years under Law No. 9.609/1998, ensuring intellectual property and exploitation rights to ITEGAM and the authors.Item Desenvolvimento de um Sistema para Monitoramento de Paradas de Máquinas em Linhas de Produção Aplicado ao Processo da Indústria 4.0(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) LEITE, Jandecy Cabral; SILVA, Valdir Francelino da; SILVA, Simone daCertificate issued by the Brazilian National Institute of Industrial Property (INPI) for the registration of the computer program entitled Development of a System for Monitoring Machine Downtime in Production Lines Applied to the Industry 4.0 Process. Developed in Python, the software aims to monitor equipment stoppages in production lines, providing strategic data to reduce losses, increase operational efficiency, and support decision-making in industrial environments aligned with Industry 4.0 concepts. The registration grants legal protection of the software for 50 years under Law No. 9.609/1998, ensuring proprietary rights to ITEGAM and the authors.Item Análise de Viabilidade Econômico-Financeira e de Maturidade para Implementação de Conceitos Indústria 4.0(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) TAHER, Thyago Mileo; NASCIMENTO, Manoel Henrique ReisThe adoption of Industry 4.0 technologies and concepts has proven to be an effective strategy for increasing the competitiveness of industrial companies. However, many organizations face challenges in assessing both the economic-financial feasibility and the organizational maturity level required for adopting these technologies in an integrated and simplified manner. This dissertation proposes a model that combines Return on Investment (ROI) analysis with the TOE (Technology, Organization, and Environment) framework, providing a holistic view of the feasibility of transitioning to Industry 4.0. The model was applied to an electronics manufacturing company in the Manaus Industrial Hub, which had already started its technological migration but without using structured evaluation methods. Results showed highly positive financial returns and adequate organizational maturity, confirming the feasibility of implementation. The developed model is concluded to be simple, efficient, and applicable on a large scale, providing industries with a solid foundation for decision-making in digital transformation.Item Análise dos Desafios na Transição para Indústria 4.0: Um Estudo sobre a Integração de Sistemas de Custeio em Ambientes Automatizados(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) SILVA, Maeli Oliveira da; MARINELLI FILHO, NelsonThis study analyses the challenges faced during the transition from traditional costing systems to absorption costing systems in the context of Industry 4.0. By applying heat maps to industrial costing spreadsheets of electronic components, inconsistencies were identified that reflect broader structural barriers of industrial digital transformation. The methodology relied on data visualization techniques to detect null and zero values at different stages of the migration process. The results revealed seven critical categories of inconsistencies: interoperability issues, complexity in indirect cost allocation, implementation and maintenance costs, workforce training, real-time data management, compliance and security, and adaptation to Industry 4.0 dynamics. It was concluded that such inconsistencies represent significant barriers to transition, especially in highly automated industries. The study also proposes a framework for assessment and mitigation, contributing to the literature on digital transformation in the Brazilian industrial context.Item Avaliação das Barreiras ao Uso de IoT nos Testes de Segurança e de Envelhecimento no Setor de Telefonia Celular Aplicando o DEMATEL(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) LIMA, Wellyngton Araújo; LEITE, Jandecy Cabral; http://lattes.cnpq.br/7279183940171317This study investigated the barriers that hinder the implementation of the Internet of Things (IoT) in the security and aging tests of the cellular telephony sector in the Manaus Industrial Complex, considering the transformative potential of IoT for process optimization, increased efficiency, and improved real-time monitoring. The research was motivated by the observation that despite the technological advances and promises associated with IoT, its adoption in this specific context has been limited by technical, regulatory, and structural barriers. A systematic literature review combined with the Decision Making Trial and Evaluation Laboratory (DEMATEL) method, supported by field experts, was conducted. The results revealed that the most influential barriers were the shortage of qualified professionals, lack of regulation, and integration complexity, while interoperability and technical standards appeared more as secondary consequences. Based on these findings, a conceptual framework was proposed, providing a clearer understanding of the existing challenges and offering strategic guidance for overcoming them.Item Análise Técnica da Manutenção Preventiva em Subestações: Foco em Transformadores, Disjuntores e Chaves Seccionadoras(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) PIMENTEL, Eduardo Fernandes; MARINELLI FILHO, NelsonElectrical substations are essential for the transmission and distribution of energy, transforming voltage and controlling electrical flow. Operating continuously in adverse environments, their equipment is subject to wear and failure, requiring preventive actions to ensure system reliability and safety. This paper analyzes preventive maintenance in substations, focusing on transformers, circuit breakers, and disconnecting switches. The methodology included documentary and technical research based on ABNT standards, manufacturers’ manuals, and practices from the electricity sector. Specific inspection procedures, electrical tests, and complementary techniques such as thermography were applied. The results show that preventive maintenance, when applied in a technical and planned manner, reduces costs, extends equipment lifetime, and ensures the reliability and efficiency of electrical substations.Item Sistema Inteligente de Verificação de Pedidos com Visão Computacional e Aprendizado de Máquina para Expedição Industrial 4.0(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) THEOCHAROPOULOS, Scarlette Silva; SILVA, Maeli Oliveira da; CAMPOS, Paola SoutoCertificate issued by the Brazilian National Institute of Industrial Property (INPI) for the registration of the computer program entitled Intelligent Order Verification System with Computer Vision and Machine Learning for Industrial 4.0 Shipping. Developed in Python, the software aims to optimize industrial processes by integrating computer vision algorithms and machine learning techniques to automate shipping in the context of Industry 4.0. The registration provides legal protection for 50 years under Law No. 9.609/1998, ensuring the proprietary rights of the authors and the holding institution over its technological application.Item Avaliação das Barreiras ao Uso de IoT nos Testes de Segurança e de Envelhecimento no Setor de Telefonia Celular Aplicando o DEMATEL(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) LIMA, Wellyngton Araújo; LEITE, Jandecy CabralThis study investigated the barriers hindering the implementation of the Internet of Things (IoT) in safety and aging tests in the mobile telephony sector within the Manaus Industrial Hub. Despite the transformative potential of IoT to optimize processes, increase efficiency, and improve real-time monitoring, its adoption has been constrained by technical, regulatory, and structural challenges. A systematic literature review combined with the DEMATEL method, supported by industry experts, revealed that the most influential barriers were the shortage of qualified professionals, lack of regulation, and integration complexity, while interoperability and technical standards emerged as secondary consequences. A conceptual framework was proposed to provide strategic insights and practical support for overcoming these obstacles and guiding future IoT implementation in the industrial sector.Item Implementação do Processo de Montagem de Componentes com Tecnologia SMT para o Máximo de Produtividade(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) CRUZ JUNIOR, Davi Clementino; VIEIRA JUNIOR, MiltonThe manufacture of electronic products has evolved from wire assembly to SMT (Surface Mount Technology), characterized by component miniaturization and high-speed automation. This dissertation aims to present a systematic roadmap for the efficient implementation of SMT assembly lines during the printed circuit board (PCB) assembly stage. The work covers Design for Manufacturing (DFM), assembly machine programming, and Start Up. An applied methodology is adopted, including theoretical review, equipment analysis, proposal of a best practices checklist, and a case study conducted in a company located in the Manaus Industrial Hub. The results show that proper implementation and balancing of SMT lines can significantly enhance productivity and reduce inefficiencies.