Centro de Ciências Exatas e de Tecnologia - CCET: Envíos recientes
Mostrando ítems 961-980 de 7301
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Transesterificação heterogênea catalisada por sílicas contendo sítios básicos e cátions cetilvinilimidazólio
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 12/05/2022)Homogeneous catalysis is the most used process in the production of biodiesel, although this process has several disadvantages such as: the catalyst cannot be easily reused and requires parallel processes for separation ... -
Potenciais legais e ambientais de uma área para loteamento residencial: obstáculos e oportunidades
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/11/2022)With the accelerated urbanization and the effects of the Industrial Revolution, the anthropic actions on the environment have had their deleterious effects increased due to the imbalance between population, environmental ... -
Electrochemical desalination using polyglycerol activated carbon: electrode, cell, and process development
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 18/11/2022)Capacitive deionization (CDI) has emerged as a promising electrochemical technology for the desalination of brackish water, which promotes the electrosorption of ions in the electrical double layer. In recent years, there ... -
Entraves e etapas do processo de regularização fundiária urbana no interior de São Paulo, o uso dos RPAS no mapeamento dos núcleos irregulares
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Urbana - PPGEU, Câmpus São Carlos, 02/08/2022)This work is part of a series of studies developed in the Graduate Program in Urban Engineering (PPGEU), the object of study is the practice and development of urban land regularization in Brazil. According to several ... -
Precious, strategic and toxic elements in electronic waste: bibliometric evaluation, proposition of reference material and direct analysis by laser-based techniques and fluorescence spectrometry
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 26/03/2021)Waste electrical and electronic equipment (WEEE) is among the fastest growing types of solid waste in the world. In addition, this is a complex waste stream when it comes to recycling, due to the large variety of valuable ... -
Desenvolvimento de métodos analíticos utilizando laser-induced breakdown spectroscopy (LIBS) para determinação de contaminantes, macro e micronutrientes em fertilizantes
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 22/02/2017)In this study analytical procedures were developed using laser-induced breakdown spectroscopy (LIBS) for determination of B, Ca, Cd, Cr, Cu, K, Mg, Mn, Na, Pb, and Zn in solid fertilizers and suspensions. Factorial designs ... -
A tool-supported approach to adapt web user interfaces considering the emotional state of the user
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ciência da Computação - PPGCC, Câmpus São Carlos, 10/03/2022)The field of Human-Computer Interaction aims at developing computational systems that place the user at the center of the their development, so he/she can have the best experience when interact with the final solution. ... -
Investigating the potential of polysulfides obtained via inverse vulcanization as sustainable fertilizers
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 07/11/2022)Global food security is one of the biggest challenges we face today, and to this end, establishing sustainable strategies towards the development of more efficient and safer agricultural products is indispensable. Sulfur ... -
Isolamento, caracterização taxonômica e aplicação de leveduras no processo de fabricação de cervejas personalizadas
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Biotecnologia - PPGBiotec, Câmpus São Carlos, 30/07/2022)The brewing market has been expanding with important demands aimed at improving the quality of the drink. One of the alternatives to improve the process would be the identification of yeast strains with unique organoleptic ... -
Compósitos cimentícios de ultra-alto desempenho reforçados com fibras metálicas e incorporação de pó de vidro
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Civil - PPGECiv, Câmpus São Carlos, 31/08/2022)Ultra-high performance fiber-reinforced cementitious composites (UHPFRCC) have been widespread in civil construction due to their rheological, mechanical properties and their improved durability. However, the material has ... -
Resolução de problemas como ferramenta para o letramento matemático no Ensino Fundamental II
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 30/09/2022)This work aims at presenting the problem-solving methodology as a tool to improve mathematical literacy of 8th grade middle school students. Polya’s four-step problem- solving process is a widely known method for solving ... -
Modificação de semicondutores de Sb2Se3 com co-catalisadores de MoSx e Pt para a produção de hidrogênio verde via water splitting solar
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 23/11/2022)Sb2Se3 semiconductors have been shown to be excellent photocathodes with attractive optoelectronic properties when compared to other photoabsorbers commonly used. However, its photocorrosion in aqueous media prevents it ... -
Calibração multivariada aplicada ao monitoramento da síntese enzimática de biodiesel etílico utilizando lipase solúvel
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 13/09/2022)The production of biodiesel requires a process of monitoring and modeling of its reaction that guides the control of the production. Therefore, a multivariate calibration model that interprets the data obtained from biodiesel ... -
Modelo machine learning de um trocador de calor tipo placa via modelo gerado no Aspen
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 12/09/2022)Mathematical optimization methods tend to be increasingly applied, both due to the greater capacity of computers, as well as the greater knowledge of the behavior of the systems and consequent knowledge of the variables ... -
Aircraft routing under uncertainty via robust optimization
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia de Produção - PPGEP, Câmpus São Carlos, 02/09/2022)We address the robust vehicle routing problem (RVRP), focusing on the development of mathematical models and solution methods to incorporate uncertainties regarding travel times and demand, in traditional and practical ... -
Um estudo dos modelos de sobrevivência de longa duração LIGcr e GEPGWcr
(Universidade Federal de São Carlos, UFSCar, Programa Interinstitucional de Pós-Graduação em Estatística - PIPGEs, Câmpus São Carlos, 04/10/2022)In this work we study two long-term survival models denomined Logaritmic Inverse Gaussian cure rate (LIGcr) model and Geometric Exponentiated Power Generalized Weibull cure rate (GEPGWcr) model. Both models take into ... -
Uso da técnica laser-induced breakdown spectroscopy (LIBS) para análise direta de ligas metálicas: estratégias de normalização, calibração univariada e multivariada e modelos de classificação
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 10/02/2017)This academic master's dissertation was devoted to the development of analytical methods for the determination of Al, Cr, Cu, Fe, Mn, Mo, Ni, Ti, V and Zn in alloys and steels. The main purpose of the study was to present ... -
Proposta de modelo de maturidade Lean Quality para construtoras
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Civil - PPGECiv, Câmpus São Carlos, 13/09/2021)The Brazilian construction industry has been intensifying the adoption of management systems based on quality. It has advanced in studying its processes in search of improved productivity, delivering higher-value products ... -
Mapeamento de parâmetros de soldagem robotizada GMAW visando tempos de produção reduzidos para juntas do aço ASTM A572 G50
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Câmpus São Carlos, 15/09/2022)The welding process using electric arc with shielding gas (GMAW - Gas Metal Arc Welding) is extremely widespread and used in several applications. This is due to its high productivity combined with low cost in addition to ... -
Análise, seleção e agrupamento de características relevantes das equipes da NFL durante os anos de 2013-2016 e suas relações - um estudo de caso
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 14/09/2022)On this work, the study of different NFL (National Football League) variables was proposed, with the main goal of analysing, selecting and clustering their characteristics and its correlations. Data on the official NFL ...