Repositório Institucional Galileo
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- A comunidade se destina a armazenar as políticas e documentação da Biblioteca do Instituto de Tecnologia e Educação Galileo da Amazônia.
- Trabalhos ténico-científico oriundos de convênios com universidades para oferta de turmas de mestrado e doutorados no Estado do Amazonas
- Produção do Programa de Pós-graduação em Engenharia, Gestão de Processos, Sistema e Ambiental (EGPSA)/Instituto de Tecnologia e Educação Galileo da Amazônia (ITEGAM).
Submissões Recentes
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, Nelson
Electrical 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.
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 Souto
Certificate 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.
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
This 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.
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, Milton
The 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.
Diagnóstico Difuso da Rentabilidade Empresarial: Modelo Mamdani Aplicado às Margens Bruta e Operacional
(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) NASCIMENTO, Alessandra Souza; NASCIMENTO, Manoel Henrique Reis; ALMEIDA, Luiz Fernando Correia de; SANTOS, Eliton Smith dos
This article proposes and validates a Mamdani fuzzy-inference model to diagnose corporate profitability for Coelmatic Indústria de Componentes Eletrônicos Ltda., using 2024 income-statement data. Four input variables—General and Administrative Expenses (DGA), Tax Debt Ratio (DT), Financial Debt Ratio (DF) and Financial Return (RF)—were fuzzified into Low, Medium and High through trapezoidal membership functions calibrated on historical quartiles. An 81-rule IF–THEN base, generated by the Wang-Mendel algorithm and refined by domain experts, feeds the Mamdani core; centroid defuzzification yields the crisp score CompLucroO on a 0–30 scale. The model achieved a mean absolute error below 8 % against accounting ROE and a Kendall’s W of 0.85 versus analysts’ rankings, supporting the hypothesis that fuzzy logic captures performance nuances overlooked by crisp metrics. Limitations include single-year scope, subjective parameter tuning and exclusion of macroeconomic factors. Future work should extend the time series, explore type-2 or neuro-fuzzy systems, and incorporate ESG indicators.