Documentação de convênios

URI permanente desta comunidadehttps://rigalileo.itegam.org.br/handle/123456789/173

Trabalhos ténico-científico oriundos de convênios com universidades para oferta de turmas de mestrado e doutorados no Estado do Amazonas

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A Importância da Convergência Tecnológica nas Áreas de Telecomunicações como Ferramenta Estratégica ao Desenvolvimento Regional: Uma Visão dos Stakeholders
(Universidade Federal de Santa Catarina (UFSC), 2001) LEITE, Jandecy Cabral; ROSSETTO, Carlos Ricardo
The study addresses the importance of technological convergence in the telecommunications area as a strategic tool for the sustainable development of the Amazon State, from the stakeholders' perspective. The research demonstrates that, despite the geographical and communication challenges of the region, technological convergence can contribute to the conservation of natural resources and the well-being of the population. The work explores the relationship between globalization, sustainable development, and technological advancement, highlighting the need for policies and strategies that integrate these areas for regional development.
Protocolo Híbrido para Autenticação Quântica de Mensagens Clássicas com uso do Gerador de Sequências Pseudo-aleatórias Blum-Blum-Shub
(Universidade Federal do Pará, 2006) AZEVEDO, Manoel Socorro Santos; ASSIS, Francisco Marcos de; FREIRE, Raimundo Carlos S.
In the present time, when the search for computational and unconditional security is a reality, studies have been done to solve problems related to messages changes and authentication, in a safe way. Cryptographic systems are studied, valued and tested for real safety, allowing the cryptoanalysis of such systems. The quantum cryptography appears as a powerful allied to provide unconditional security. The quantum authentication of classic messages is a reality that can be put in practice in a relatively short time. A hybrid protocol authentication of classic messages is considered, using the BBS (Blum-Blum-Shub), pseudo-random sequence generator. The protocol´s security against individual attacks is formally evaluated.
Aspectos Importantes na Utilização de Bombas Centrífugas em Velocidade Variável para a Redução do Consumo de Energia
(Instituto de Tecnologia, 2006) MESQUITA, André L. Amarante; SILVA, Lázaro J. S. da; ABRAHAM JÚNIOR, Otávio; PEREIRA, José Almir; R. SILVA, Aldo Cezar P.; BATISTA, Clauderino da Silva
The study examines the use of variable speed centrifugal pumps as a solution to reduce energy consumption in water supply systems. It covers theoretical principles, technological aspects, and economic feasibility, employing frequency inverters to adjust flow according to demand. Two case studies illustrate the method's effectiveness: parallel pump operation and tank level control. Results show significant energy savings with short financial payback, emphasizing the need for technical and economic analysis for implementation.
Dust exhaustion systems in the aluminum industry – reference data and design methodology definition problems
(INSTITUTO DE TECNOLOGIA, 2007) TREJO, Antonio Mauricio Martelli; VASCONCELLOS, Mauro Fernandes; MESQUITA, André Luiz Amarante.; MAGALHÃES, Edilson Marques
The study addresses challenges in designing dust exhaustion systems for the aluminum industry, emphasizing the lack of reference data for specific equipment and process emissions. Methodologies for calculating air flow and pressure drop in exhaust systems are reviewed, with a focus on pneumatic conveying of particulates. The work proposes an improved methodological approach based on hydrodynamic models and presents real-world case studies, such as coke loading/unloading systems and alumina feeding in potlines. Conclusions include recommendations for optimizing system performance.
Reciclagem do resíduo da estação de tratamento de efluentes da indústria de injeção de plástico na indústria de cerâmica vermelha
(INSTITUTO DE TECNOLOGIA, 2009) JIMENEZ, I. J.; SOUZA, J. A. S; BRITO, F. S. de.; Eduardo de Magalhães Braga
The study investigates the feasibility of recycling waste from plastic injection industry effluent treatment stations by incorporating it into red ceramic production. Mixtures with 2%, 5%, and 10% waste relative to clay were evaluated, analyzing properties such as density, porosity, and flexural strength. The results indicate that the waste positively influences solid-state reactions, enhancing some mechanical properties of ceramic products, especially at concentrations up to 5%. The research presents a sustainable alternative for industrial waste disposal, aligned with environmental demands.
UTILIZAÇÃO DE DUTOS DESCARTADOS DO GASODUTO COARI-MANAUS PARA CONFECÇÃO DE PONTE PROVISÓRIA SOBRE O IGARAPÉ DO CEDRO SEGUNDO A NORMA API 5L X70
(Universidade Federal do Pará, 2010) SANTOS, Doriel Andrade dos; FARIA, Marlene de Araújo
This study aims to present an alternative construction method using discarded API 5L X70 pipelines from the Coari-Manaus gas pipeline for the construction of a temporary bridge over the Cedro stream in the Amazon rainforest. The bridge facilitates material and worker transportation for the construction of the Compression Station – ECOMP in Juaruna. The ANSYS 8.0 program was used to analyze the structural behavior of a bridge element, applying numerical methods to evaluate stress and deformation in structural components. Additionally, an environmental mitigation proposal is presented to reduce the impact of equipment crossing the Cedro stream, as well as the logistical challenges faced by companies operating in the Amazon region.
Sistema para Tomada de Decisão na Programação de Produção de Celular e Modem, Utilizando Lógica Fuzzy
(Universidade Federal do Pará, 2010) SILVA, Carlos Américo de Souza; COSTA JUNIOR, Carlos Tavares da
The objective of this paper is to present a model using fuzzy logic, which seeks to assist the process of making decision as to which product should have priority in scheduling of the manufacturing process where there are two classes of products (WCDMA Modem and Mobile Phone). With this, it aims to identify particularities and characteristics of the productive processes, creating a better sequencing of production, whose master plan of production will be able to meet demand according to market fluctuations. The main purpose of the proposed system is to assist professionals in industrial planning to determine which products should be prioritized in the production line based on manufacturing characteristics, such as delivery time, cycle time, production process, and margin contribution, creating a production program best suited to the reality of the organization, in other words, optimizing existing resources and increasing profits.
Metodologia para Diagnosticar a Qualidade de Energia Elétrica Referente à Distorção Harmônica em Sistema Trifásico de Baixa Tensão Utilizando Lógica Fuzzy
(Universidade Federal do Pará, 2010) GONÇALVES, Benevaldo Pereira; COSTA JÚNIOR, Carlos Tavares da
This work emphasizes the importance of monitoring and diagnosing the quality of electric power from the viewpoint of harmonic distortion present in the electrical installation in low voltage three-phase system using a methodology to analyze and diagnose the level of harmonic disturbances evaluating the overall indicator of distortion Harmonic (THD), supported by an expert system based on a Fuzzy inference system.
Metodologia para Diagnosticar a Qualidade de Energia Elétrica Referente à Distorção Harmônica em Sistema Trifásico de Baixa Tensão Utilizando Lógica Fuzzy
(Universidade Federal do Pará, 2010) GONÇALVES, Benevaldo Pereira; COSTA JÚNIOR, Carlos Tavares da
This work emphasizes the importance of monitoring and diagnosing the quality of electric power from the viewpoint of harmonic distortion present in low-voltage three-phase electrical installations. The proposed methodology analyzes and diagnoses the level of harmonic disturbances by evaluating the total harmonic distortion (THD) indicator, supported by an expert system based on a Fuzzy inference system. The study presents a systematic approach to assessing power quality, using regulatory standards and recommendations, and demonstrates the effectiveness of Fuzzy logic in formulating precise and standardized diagnostics.
Sistema para Tomada de Decisão na Programação de Produção de Celular e Modem Utilizando Lógica Fuzzy
(Universidade Federal do Pará, 2010) SILVA, Carlos Américo de Souza; COSTA JUNIOR, Carlos Tavares da
The objective of this paper is to present a model using fuzzy logic, which seeks to assist the process of making decisions as to which product should have priority in scheduling the manufacturing process where there are two classes of products (WCDMA Modem and Mobile Phone). With this, it aims to identify particularities and characteristics of the productive processes, creating a better sequencing of production, whose master plan of production will be able to meet demand according to market fluctuations. The main purpose of the proposed system is to assist professionals in industrial planning to determine which products should be prioritized in the production line based on manufacturing characteristics, such as delivery time, cycle time, production process, and margin contribution, creating a production program best suited to the reality of the organization, in other words, optimizing existing resources and increasing profits.
Metodologia de Avaliação da Qualidade do Ruído nos Postos de Trabalhos Industriais Baseada em Lógica Fuzzy
(Programa de Pós-Graduação em Engenharia Elétrica, 2010) NOGUEIRA, Maria Amélia Costa Saraiva; COSTA JUNIOR, Carlos Tavares da
The noise is ranked third among the most unhealthy agents affecting human health. Occupational noise that affects employees in their day-to-day tasks can be prevented through the involvement of employers and employees in a hearing conservation program. This study proposes the applicability of fuzzy logic to evaluate the quality of noise in industrial jobs, considering variables such as noise level and number of hours worked. Thus, using fuzzy logic modeling, measured noise levels were assessed, generating results that classify the work environment as satisfactory or high-risk, as well as providing guidance on whether or not to use safety equipment in hazardous environments. Prevention seeks to minimize or even eliminate hearing and non-hearing health problems, which are very common nowadays.
Ensaio Mecânico e Aplicação da Lógica Fuzzy para Avaliação do Canote do Garfo
(Universidade Federal do Pará, 2010) SANTOS, Ruy Sidney Nascimento dos; FARIA, Marlene Araújo de
Technological innovation has been one of the fundamental factors that drive major companies to stay atop the world ranking of the global market. Simulation methods for evaluating the mechanical behavior of products subjected to static and dynamic loads are extremely necessary to reduce manufacturing costs. This study aimed to use fuzzy logic in a product called the bicycle fork seatpost, where the degree of membership and accuracy, varying between 0 and 1, were analyzed, focusing on the product's behavior and its validation.
Análise Ergonômica Aplicada aos Processos Industriais Relacionada a Trabalho em Ambientes a Altas Temperaturas
(Universidade Federal do Pará, 2010) PINHEIRO, Jaqueline Silva de Souza; Prof. Dr. Roberto Célio Limão de Oliveira
O estudo investiga a ergonomia em ambientes industriais de altas temperaturas, destacando riscos ocupacionais e possíveis melhorias. A pesquisa de campo na WM GAS da Amazônia Ltda. revelou a falta de adequação ergonômica e propõe soluções para aprimorar a segurança e saúde dos trabalhadores.
Utilização de Dutos Descartados do Gasoduto Coari-Manaus para Confecção de Ponte Provisória sobre o Igarapé do Cedro Segundo a Norma API 5L X70
(Universidade Federal do Pará, 2010) SANTOS, Doriel Andrade dos; FARIA, Marlene de Araújo
This paper aims to present an alternative construction of an engineering project, with the use of API 5L X70 pipeline discarded from the Coari-Manaus pipeline, in the process of building a temporary bridge over the Cedro creek in the Amazon rainforest. The goal is to enable the transport of workers and materials for the industrial production of the Compression Station - ECOMP in Juaruna. The ANSYS 8.0 program was used to analyze the stresses and deformations of structural elements subjected to loads. The study also presents a proposal for the mitigation of environmental impacts and addresses the logistical challenges faced in the Amazon region.
Aplicação de Filtro Harmônico em Sistemas Elétricos de Baixa Tensão Utilizando Lógica Fuzzy
(Universidade Federal do Pará, 2010) CIRINO, Weverson dos Santos; COSTA JUNIOR, Carlos Tavares da
This work presents a solution to minimize harmonic distortion in low-voltage electrical systems through the application of passive harmonic filters and the use of fuzzy logic. The proposed algorithm detects and calculates the frequencies at which the Total Harmonic Distortion (THD) value is elevated, comparing it with a normative index. Once the need for filter application is identified, the algorithm designs the passive filter, chosen for its ease of installation and low cost. The algorithm also recalculates the THD after filter application, using fuzzy logic to classify the final result.
A Utilização da Automação como Solução dos Problemas Ergonômicos em Prensas Hidráulicas de Estampagem de Peças Metálicas
(Universidade Federal do Pará, 2010) OLIVEIRA, Macêdo Santos de; SILVA, José Antônio S.; DELON, José Alain; NASCIMENTO, Manoel Henrique Reis
This article presents a study on the use of automation in a metal parts factory that uses hydraulic presses for stamping. The goal is to reduce the number of operator absences due to occupational diseases, such as RSI/WMSD, caused by repetitive efforts and inadequate postures. Automation was implemented to improve the ergonomic conditions of workstations and increase production. The study shows that automation reduces costs related to absences and increases production efficiency.
Análise ergonômica aplicada aos processos industriais relacionada a trabalho em ambientes à altas temperaturas
(Universidade Federal do Pará, 2010) PINHEIRO, Jaqueline Silva de Souza; FARIAS, Marlene Araújo de; LEITE, Jandecy Cabral.; NASCIMENTO, Manoel Henrique Reis
The major industry sector in Manaus is represented by electro-electronic industries, but only a part of them has a suitable ergonomically workplace. In the case of metallurgic industries, their working conditions are not suitable due to a series of factors, such as exposure to high temperatures, which cannot be cooled, creating adverse conditions like thermal shock and fatigue. This paper's general goal is to describe the importance of preserving workers' mental and physical health in the workplace through ergonomics. The study presents improvement suggestions and advice that may contribute to solving ergonomic problems related to workers' health.
A aplicação da lógica fuzzy para avaliação do produto canote do garfo
(Instituto de Tecnologia Galileo da Amazônia, 2010) SANTOS, Ruy Sidney Nascimento dos; COSTA JÚNIOR, Carlos Tavares da; COSTA JÚNIOR, Carlos Tavares da
With technological advancements, the engineering sector has been seeking solutions that offer positive results for the growth of their companies or organizations. Simulation methods for evaluating the mechanical behavior of products subjected to static and dynamic loads are extremely necessary to reduce manufacturing costs. The use of mechanical and virtual tests is of vital importance for product evaluation. This study aimed to apply fuzzy logic to a product called the bicycle fork steerer tube, analyzing both the degree of membership varying between 0 and 1 and the degree of truth also varying between 0 and 1, with the main focus on the behavior of the steerer tube and its validation.
Analysis of lubricating oil in internal combustion engines of electrical power generation plant. Subtítulo: Análisis de aceite en motores de combustión interna estacionarios de planta de generación de energía eléctrica.
(Instituto de Tecnologia, 2010) SANTOS, Gilbert Queiroz dos; LEITE, Jandecy Cabral; BRASIL, Davi do Socorro Barros
The article presents the application of Fuzzy Logic in the inventory management of a public organization, aiming to reduce material shortages caused by lead time. The study proposes a system based on linguistic variables such as stock level and demand, using membership functions and fuzzy rules to assist in decision-making regarding supply, replenishment, and bidding. The results demonstrate the method's feasibility for optimizing inventory control and minimizing costs.
Aplicação de Filtro Harmônico em Sistemas Elétricos de Baixa Tensão utilizando Lógica Fuzzy
(Instituto de Tecnologia, 2010) CIRINO, Weverson dos Santos; LEITE, Jandecy Cabral; COSTA JUNIOR, Carlos Tavares da; TOSTES, Maria Emilia de Lima; QUARESMA, João Nazareno Nonato
The article discusses the application of passive harmonic filters in low-voltage electrical systems to mitigate distortions caused by harmonics, using Fuzzy Logic. The proposed algorithm analyzes and detects harmonic components exceeding 5% of the fundamental coefficient, designing customized filters. The methodology includes computational simulations and validation according to IEC standards, demonstrating effectiveness in reducing distortions and improving power quality.