Repositório Institucional Galileo
O RIGalileo é uma plataforma dedicada ao armazenamento, preservação e disseminação do conhecimento científico e acadêmico, alinhada aos princípios da Ciência Aberta. O RIGalileo oferece acesso a coleção de recursos, incluindo livros, trabalhos de conclusão de curso, dissertações, teses, artigos científicos, relatórios e documentos resultantes das atividades de pesquisa e desenvolvimento (P&D) do ITEGAM.
Comunidades no DSpace
Selecione uma comunidade para navegar por suas coleções
- 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
ESTUDOS DE PROCESSOS DE EXTRAÇÃO E CARACTERIZAÇÃO DE FIBRAS DO FRUTO DO AÇAÍ (Euterpe oleracea MART.) DA AMAZÔNIA PARA PRODUÇÃO DE ECOPAINEL DE PARTÍCULAS DE MÉDIA DENSIDADE
(Universidade Federal do Pará, 2013) MESQUITA, Antonio de Lima; FARIA, Lênio José Guerreiro de
The fibrous tissue of the açaí fruit (Euterpe oleracea Mart.) is discarded in large quantities in the Metropolitan Region of Belém (PA), Brazil, after juice production. This agro-industrial residue is rarely utilized sustainably. This thesis aimed to study extraction and treatment processes of açaí fruit fibers through biological maceration, both spontaneous and induced, and chemical mercerization with NaOH, with and without autoclave, for the development of new alternative composite materials for the civil construction industry. Anatomical, chemical, physical, and mechanical characterizations of the fibers were performed, followed by the fabrication of homogeneous particle ecopanels bonded with castor oil-based bicomponent polyurethane resin. The physical-mechanical and microstructural characterization of the ecopanels demonstrated significant improvements in treated fiber properties, such as tensile strength, water absorption, and thickness swelling, evidencing the potential use of the residue as raw material for the production of sustainable ecopanels with possible applications in the construction and furniture industries.
OTIMIZAÇÃO MULTIOBJETIVO DA COMPENSAÇÃO DE POTÊNCIA REATIVA EM REDES DE DISTRIBUIÇÃO CONSIDERANDO RESTRIÇÕES DE DISTORÇÃO HARMÔNICA
(Universidade Federal do Pará, 2014) AZEVEDO, Manoel Socorro Santos; BEZERRA, Ubiratan Holanda
The correct location of capacitor banks in electric power distribution networks aims to compensate for excess reactive power flow through transmission lines, reducing operational costs by decreasing energy losses and increasing active power transmission capacity while ensuring appropriate voltage and power factor levels. The proliferation of nonlinear loads has introduced new challenges due to the harmful effects of harmonics on power quality. This thesis develops a computational tool using computational intelligence techniques with genetic algorithms (GA) for multiobjective optimization of reactive power compensation in electric distribution networks, capable of optimally locating and sizing compensation units while achieving economic benefits and complying with Brazilian power quality standards. The approach considers the use of capacitor banks and harmonic filters and applies the NSGA-II algorithm to determine Pareto-optimal solutions. The methodology enables the determination of reactive power compensation considering harmonic presence while maintaining compliance with normative limits on harmonic distortion.
PROJETO MULTICRITÉRIO DE FILTROS HARMÔNICOS PASSIVOS PARA INSTALAÇÕES INDUSTRIAIS UTILIZANDO TÉCNICAS DE INTELIGÊNCIA COMPUTACIONAL
(Universidade Federal do Pará, 2013) LEITE, Jandecy Cabral; TOSTES, Maria Emília de Lima
Due to the industrial growth in Northern Brazil, especially at the Manaus Industrial Pole (PIM), mathematical tools are needed to assist experts in selecting and sizing harmonic filters that neutralize the harmful effects of harmonics generated by nonlinear loads and ensure compliance with power quality standards. Additionally, passive harmonic filters (PHF) can act as reactive power compensators, achieving significant energy billing savings. This thesis develops a mathematical method and a computational tool for selecting the configuration and design parameters of PHFs in industrial systems, formulating the problem as a multi-objective optimization that considers both harmonic distortion reduction and the project's economic effectiveness, complying with Brazilian and international standards. The computational solution is based on the NSGA-II genetic algorithm, generating a Pareto front of optimal solutions that allow designers to select the most suitable option. The tool includes innovative features, such as automatic selection of filter configuration and number of branches, and considers various operational scenarios. Validation was performed through practical examples that demonstrated the advantages of the proposed method.
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; FILHO, Nelson Marinelli; GUIMARÃES, Gil Eduardo; LEITE, Jandecy Cabral; FERREIRA, Matheus Rissardi; Jandecy Cabral Leite
This paper analyzes the challenges faced during the transition from traditional costing systems to absorption costing systems in the context of Industry 4.0. Through the analysis of heat maps applied to an industrial costing spreadsheet for electronic components, the study identifies and categorizes inconsistencies that reflect broader structural challenges of industrial digital transformation. The results reveal seven critical categories of inconsistencies: interoperability issues, complexity in the allocation of indirect costs, implementation and maintenance costs, workforce training, real-time data management, compliance and security, and adaptation to the dynamics of Industry 4.0. It was concluded that such inconsistencies represent significant barriers to a successful transition, especially in industries with a high degree of automation.
Proposta de Implantação da Tributação Ambiental como Ferramenta de Incentivo na Conservação e Desenvolvimento Sustentável
(Instituto de Tecnologia e Educação Galileo da Amazônia, 2025) MONTEIRO, Ciro Allister Reis; LEITE, Jandecy Cabral; ALMEIDA, Luiz Fernando Correia de; Jandecy Cabral Leite
This study examines the implementation of the Green IPTU as a public policy tool to promote environmental conservation and sustainable development in the city of Manaus. Using a qualitative and quantitative approach, a case study is conducted based on Bill No. 248/2013, which proposes partial tax exemption for properties adopting sustainable practices. The research discusses the legal, economic, and socio-environmental feasibility of environmental taxation, emphasizing the polluter-pays principle and the socio-environmental function of urban property. It analyzes fiscal impacts, social awareness, and eligibility criteria, contributing to the debate on environmental public policies in Amazonian urban contexts.