Centro de Ciências Exatas e de Tecnologia - CCET: Envíos recientes
Mostrando ítems 561-580 de 7256
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People s awareness of circular economy: scale development and relationship with social influence, psychological barriers, and favourable evaluation of sustainable development
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia de Produção - PPGEP, Câmpus São Carlos, 13/04/2023)Circular Economy (CE) encompasses strategies that aim to decouple economic activity from finite resource consumption and eliminate waste from the system as a matter of principle. Supported by a transition to renewable ... -
Cadastro territorial multifinalitário na elaboração da planta genérica de valores do município de Cubatão/SP
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Urbana - PPGEU, Câmpus São Carlos, 28/04/2023)The aggravation of the financial crisis in recent decades has highlighted the dependence of municipalities on the Union. The decrease in revenue makes Mayors and Secretaries seek new methods to balance income and expenses. ... -
Práticas relacionadas a indústria 4.0 e suas aplicações no campo da ergonomia: análise da implementação de exoesqueletos
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia de Produção - PPGEP, Câmpus São Carlos, 16/06/2023)The 4th industrial revolution is a new trend that brought innovations to the corporate world, however, at the same time, it raised questions about workers' health, making the study of the relationship between technologies ... -
Estudo teórico da influência da adição de adesivante nas propriedades físico-quimicas do polipropileno reforçado com fibras de vidro
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 20/07/2023)Fiber-reinforced polymeric composites are widely used today, being applied in several areas such as aeronautics, automotive, military, medical, among others. However, some polymers present low adhesion in the interfacial ... -
Teorema da esfera suave via fluxo de Ricci
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Matemática - PPGM, Câmpus São Carlos, 04/08/2023)The goal of this dissertation is the theoretical development of the Ricci flow, a differential equation over a family of Riemannian metrics on an arbitrary differentiable manifold, and its use in the proof of the so-called ... -
Avaliação do efeito de diferentes parâmetros de usinagem sobre os desvios dimensional e geométrico no torneamento de uma liga de titânio
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 28/07/2023)Titanium alloys are of great importance as biomaterials due to their high corrosion resistance and biocompatibility. Titanium has a low elasticity modulus when compared to steel alloys of similar mechanical resistance, ... -
Espaços públicos de lazer e saúde mental em Ribeirão Preto, SP
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Urbana - PPGEU, Câmpus São Carlos, 02/06/2023)Could the city contribute to the promotion of mental health? Would the availability and the quality of public open spaces enable their use for therapeutic purposes? The research objective is to investigate how outdoor ... -
Desenvolvimento de nanocompósito de poliamida 6 e óxido de grafeno e união com alumínio 6061 por sobremoldagem por injeção
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Câmpus São Carlos, 28/04/2023)Polymer-metal hybrid structures are presented as an alternative to the transportation industry, since they are able to combine high mechanical strength and lightness. The present study focuses on obtaining hybrid joints ... -
Magnetic immobilized enzymes microreactors for in-vitro metabolism assays and/or biocatalysis applications
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 31/03/2023)Cytochrome P450s are a superfamily of hemeproteins widely used to study phase I reactions in in vitro drug metabolism assays and to correlate them with in vivo outcomes. In addition, this class of enzymes can be involved ... -
Algoritmos numéricos aplicados a aproximação da taxa interna de retorno
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 05/04/2023)The aim of this study is to explore a central topic in financial mathematics: the internal rate of return. To this end, the study begins by introducing basic concepts of financial mathematics and their possible everyday ... -
Avaliação do comportamento de ligações mistas viga-pilar e viga-viga, em temperatura ambiente e em situação de incêndio, e seus efeitos no comportamento da estrutura
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Civil - PPGECiv, Câmpus São Carlos, 04/08/2023)Steel-concrete composite connections are those in which the transfer of forces between structural elements, as well as stiffness and strength, are simultaneously ensured by steel and concrete components and elements. At ... -
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 ... -
Análise da eficiência de sequências de pulso de RMN em baixo campo para avaliar qualidade de molhos de tomate comerciais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 30/03/2023)Nuclear Magnetic Resonance is a spectroscopic technique based on the interaction of atomic numbers with nuclear spin (l) greater than zero when in the presence of a static magnetic field (B0) and an oscillating magnetic ... -
Síntese do éster de glicerol derivado do breu e suas aplicações
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 27/09/2022)It is evident that the current world has become dependent on the use of plastic in several applications, among them, the use of resins has been widely explored in the construction, paints, varnish, adhesives and even jewelry ... -
Matemática financeira: o Modelo de Markowitz
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 03/04/2023)The aim of this work is to present a mathematical introduction to the main concepts involved in Markowitz Theory. The portfolio selection developed by Markowitz shows the importance of asset portfolio diversification, ... -
Otimização dos parâmetros de torneamento para melhoria da estabilidade do chatter baseada em diagramas de lóbulos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 03/02/2023)Machining processes dominate the manufacturing industry, being vital for the delivery consumer goods with reliability and quality, but some self-excited phenomenon such as chatter are limiting in the delivery of these ... -
Otimização do desempenho dinâmico de robôs paralelos acionados por cabos com redundância cinemática utilizando reposicionamento contínuo
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 03/10/2022)Parallel robots play a key role in manufacturing processes. Among its classifications, there is a specific type called parallel robot driven by cables (RPAC), which has good inertial properties and relatively low costs. ... -
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, ... -
Eletrodeposição de filmes do tipo Ni-X (X=P, Cu ou Cu-P) a partir de banhos contendo aspartato
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 25/11/2022)In the present work, aspects related to the electrodeposition of Ni-based metal films - either pure metal or Ni-P, Ni-Cu, and Ni-Cu-P alloys - from baths containing aspartate complexes as electroactive species and hypophosphite ... -
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 ...