Engenharia Elétrica - EE: Recent submissions
Now showing items 21-40 of 69
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O uso de algoritmos de classificação para determinar estoques de segurança
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 13/07/2023)This work analyzes the application of different Artificial Neural Network algorithms with the objective of classifying candidate products for safety stock parameterization based on the purchase history of these products. ... -
Aplicação web back-end de um fantasy game
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 21/07/2023)In Brazil, the most popular sport is football and, therefore, it is recognized in scenarios that go beyond the lawns, such as the Fantasy Games. Users of this game style create and manage their own teams online, using real ... -
Desenvolvimento de um amplificador de áudio de alto desempenho utilizando realimentação negativa global
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 14/04/2023)This paper proposes the development of a high-performance audio amplifier with global feedback. The proposed topology is based on "A design methodology for audio amplifiers with no global negative feedback: proposal and ... -
Avaliação do impacto dos modos de trabalho de manipuladores robóticos em série para resolução de redundância
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 23/03/2023)Robotic manipulators are increasingly present in the industrial activities of today, being used for various tasks ranging from welding operations to transportation and cargo handling as a whole. Despite being widely used, ... -
Projeto, montagem e teste de um subwoofer ativo
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 14/04/2023)The present work describes in detail the development and construction of an active bass reproduction system "subwoofer". For this, it uses a TPA3255 integrated circuit. This class D amplifier has two outputs that are applied ... -
Análise de um amplificador de áudio padrão
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 14/04/2023)This work analyzes and assembles the 50W "Blameless" audio amplifier designed by Douglas Self in his book. The three stages of the amplifier, the feedback loop, and the mechanisms used to minimize distortion were studied. ... -
Classificação de imagens de satélite com redes neurais convolucionais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/04/2023)Satellite images are used in several areas, such as agribusiness, urban planning, environmental monitoring, among others. These images have a large and complex amount of data and the application of Machine Learning techniques ... -
Algoritimo de detecção de retinopatia diabética baseado em aprendizado de máquina
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/04/2023)In this study, the application of neural network and machine learning techniques was explored in order to identify the presence of lesions related to diabetic retinopathy (DR) in fundus images. DR is a frequent complication ... -
Novas arquiteturas fotônicas para redução da dependência do fator de qualidade e fator de extinção à erros de nanofabricação em cavidades ópticas
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 04/04/2023)In this work, experimental data from a device fabricated in a Foundry was used to demonstrate a reduction in the dependence of the quality factor and the minimum power transmitted to nanofabrication errors. To prove this, ... -
Modelando moléculas fotônicas usando a teoria dos grafos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 03/04/2023)This work aims to demonstrate a practical way to model Photonic Molecules (PMs), using tools often used in control theory. It is shown here how it is possible to model systems composed of coupled electromagnetic resonators ... -
Aplicação de redes neurais para previsão de demanda de energia elétrica
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 05/04/2023)In the early 2000s, the Brazilian electrical system was less developed than it is today and depended much more on hydroelectric generation, as 80% came from it. A study conducted by the Ministry of Mines and Energy revealed ... -
Desenvolvimento de um sistema para economia de combustível com rede neural artificial
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/04/2023)This article aims to develop a data acquisition board to identify the uphill and downhill stretches of a vehicle through an LSTM (Long Short Term Memory) artificial neural network, and to estimate the reduction in fuel ... -
Um estudo sobre consumo de energia em aplicações JavaScript: Identificação dos custos energéticos para a etapa de integração continua
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/03/2023)Given the climate context that the world finds itself in, controlling the energy consumption that humans perform on a daily basis is indispensable for the well-being of the planet and sustainability. For software this is ... -
Estudo da eficiência energética no núcleo de laboratórios de Engenharia da UFSCar
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 13/12/2022)Energy efficiency has become a relevant factor in studies and analysis of actions aimed at saving electricity in buildings. Given this scenario, the purpose of this work is to carry out a case study in the core of engineering ... -
Estudo dos procedimentos de análise e conexão de um sistema fotovoltaico na rede da CPFL
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 18/11/2022)The use of renewable energies, such as solar and wind energy, reduces carbon dioxide emissions into the atmosphere and enables the implementation of distributed microgeneration and minigeneration systems in homes, businesses ... -
Moléculas fotônicas aplicadas como filtro ótico em laser semicondutor para obtenção de fonte de luz monocromática sintonizável
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 05/10/2022)This work demonstrates the application of Photonic Molecules - PMs in spectral engineering and its ability to integrate a complex and compact optical filter, capable of efficiently and tunably filtering broad emission ... -
Revisão da efetividade da análise de vibrações para diagnóstico preditivo de falhas de equipamento em Indústria Química
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 23/09/2022)In the 4.0 industry, it's common the presence of technological solutions to predict equipment failures. The vibration analysis is used in the predictive maintenance area, and can can be applied to diagnose failures in the ... -
Previsão do preço do café utilizando redes neurais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 27/09/2022)The present article aims to develop a study on the functioning of Multi-Layer Neural Networks, in order to predict the price of coffee, based on certain climatic conditions. In this way, it can be used as an aid tool at ... -
Automação residencial utilizando Raspberry Pi para auxílio a pessoas com deficiência motora
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/06/2022)This work presents a system that was developed to allow people with motor difficulties to remotely control the operation of devices that act on the well-being of the environment. Commands are entered into the system via a ... -
Detecção de defeitos em tecidos através de redes neurais convolucionais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 03/05/2022)This work aims to apply transfer learning to a detector based on convolutional neural networks to identify defects and patterns through tissue images. With Industry 4.0, intelligent systems are increasingly being applied ...