Centro de Ciências Exatas e de Tecnologia - CCET: Recent submissions
Now showing items 201-220 of 7246
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Hidrogênio verde: seu papel estratégico na transição energética
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 07/02/2024)The search for more ecological and efficient energy sources has increased, driven by growing global demand. Despite the increase in the capabilities of renewable sources, such as wind and solar energy, it has become crucial ... -
Uma análise da avaliação em matemática no desenvolvimento de atividades da robótica educacional
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ensino de Ciências Exatas - PPGECE, Câmpus Sorocaba, 09/02/2024)With this work we seek to understand how the assessment of mathematics skills and abilities occurs during educational robotics classes. We investigated the possibility of developing an assessment instrument using educational ... -
Influência da demolição seletiva na redução de impactos ambientais sob a óptica da avaliação do ciclo de vida
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Civil - PPGECiv, Câmpus São Carlos, 29/02/2024)The concern about waste generated by demolition processes has driven the search for more sustainable methods for this practice. In Brazil, since the cancellation of ABNT NBR 5682:1977 in 2008, there has been a lack of ... -
Modelo de regressão logı́stica com mistura de distribuições : estimadores de máxima verossimilhança e bayesiano utilizando o Stan
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 02/02/2024)We explore the logist regression model, estimating its parameters through maximum likelihood and Bayesian estimators. We use mixtures of distributions for 𝐾 = 1 and 2 components. The Hamiltonian Monte Carlo implemented ... -
Avaliação da influência da carbodiimida na reciclagem de tecidos a base de PA6
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 30/11/2023)The remaining fabric from the textile industry, especially that related to clothing, is a growing environmental and economic problem. On a global scale, in 2015, 92 million tons of fabric were discarded and it is expected ... -
Crescimento e caracterizacão de filmes finos supercondutores de chumbo
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 05/09/2023)Lead thin films are attractive for fundamental research in superconductivity and practical applications due to their relatively high critical temperature and behavior as a type II superconductor. Consequently, achieving ... -
Operadores de Calderón-Zygmund, pseudo-diferenciais e espaços de Hardy
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Matemática - PPGM, Câmpus São Carlos, 09/03/2018)The purpose of this work is to study the Hardy spaces Hp(Rn) on euclidean spaces and your localized version, known as hp(Rn). As an application of this theory, we are going to show that Calderón-Zygmund and pseudo-differential ... -
Estudo comparativo dos métodos de produção de hidrogênio e carbono sólido usando a reação de decomposição do metano
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/01/2024)Currently, one of the main routes for obtaining hydrogen is the steam reforming of methane, it is known that the global demand for hydrogen has intensified in recent years, being a potential candidate for the clean and ... -
Uma abordagem estatística para a análise dos resultados das eleições presidenciais
(Universidade Federal de São Carlos, UFSCar, Programa Interinstitucional de Pós-Graduação em Estatística - PIPGEs, Câmpus São Carlos, 15/01/2024)Multiparty data has characteristics that make it compositional data such as a constant sum of components and a limited space known as simplex. Thus, the purpose of the work is to develop a methodology to analyze multi-party ... -
Modelo de classificação para dados desbalanceados: método SMOTE e variantes
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/01/2024)Often, in classification models, we encounter databases that have highly imbalanced classes, such as: rare disease diagnostic data, manufacturing defects, fraudulent transactions, etc. Training a model on a dataset with ... -
Dimensionamento de um evaporador de vinhaça do tipo névoa turbulenta
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/01/2024)The study analyses evaporation as a sustainable strategy for vinasse disposal, a subproduct of sugarcane ethanol production. The research aims to establish the sizing of a turbulent mist evaporator with a water evaporation ... -
Modelagem de predição de crimes na região metropolitana de São Paulo
(Universidade Federal de São Carlos, UFSCar, Programa Interinstitucional de Pós-Graduação em Estatística - PIPGEs, Câmpus São Carlos, 13/12/2023)The issue of public security is a challenge for Brazilian society, and crime is a major concern for the most populous state in the country, São Paulo. It is always desirable for the public administration to model and predict ... -
Estudo da variação da entropia de Shannon no jogo de xadrez a partir dos conceitos de teoria da informação
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/02/2024)Information Theory is a branch of science that quantifies information and its communication processes, and has at its core the reformulation of the fundamental concept of entropy. Shannon's entropy reflects the measure of ... -
Negrifeminicídio: O feminicídio de mulheres negras no estado de São Paulo
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 20/01/0022)Violence against women and racism are extremely important issues that must be addressed with great care and seriousness. In this work, they will be presented together: the violent deaths of white and black women and their ... -
Análise e previsão de séries temporais via Facebook Prophet
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/01/2024)Forecasting is an estimate or projection of what may happen in the future based on information and data available from the past and present. In other words, it is an attempt to make an informed guess about what is likely ... -
Long and short por cointegração aplicado ao mercado acionário brasileiro
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/09/2023)In this article, we conduct a detailed analysis of the long and short investment strategy with cointegration in the Brazilian stock market. We explore the correlation between pairs of stocks and propose a trading approach ... -
Utilização de algoritmos de classificação para diagnóstico de diabetes
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/02/2024)The undergraduate thesis consists of the study of binary classification algorithms for diagnosing diabetes based on clinical data and physical activity data. For this purpose, we will accomplish a statistical and conceptual ... -
Estudo da prevalência de transtornos mentais comuns via métodos de classificação
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/02/2024)The present undergraduate thesis focuses on the study of the association between specific variables and the diagnosis of common mental disorders. To achieve this goal, we examined classification methods, namely decision ... -
Estudo da influência de baixos teores de platina em catalisadores Ni/γ-Al2O3 nos processos de reforma a vapor, oxidação parcial e reforma oxidativa do metano.
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 22/08/2002)The effect of platinum addition in low contents (0.1 and 0.3 % wt.) in nickel supported γ−alumina catalyst (15% Ni wt.) has been investigated. The samples were prepared by successive wet impregnations of metal ions over ... -
Reforma autotérmica do metano: estudo do Processo e de catalisadores
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 07/05/2005)The study of the autothermal reforming of methane over Ni/γ-Al2O3 catalyst, promoted with noble metals was the objective of this work. In the first part, the stability to coke deposition of the autothermal reforming was ...