Centro de Ciências Exatas e de Tecnologia - CCET: Recent submissions
Now showing items 21-40 of 7245
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Nanocarreadores biopoliméricos de isoflavonas de soja e óleos essenciais: potencial dermocosmético, fotoprotetivo e antimicrobiano
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 08/12/2023)With the emergence of healthier and more conscious lifestyles, the cosmetics market has undergone a significant shift in chemical reformulation and technological planning. Plant extracts and essential oils stand out, as ... -
Fotodegradação de contaminantes emergentes por catalisadores à base de PHI (Poli Heptazina Imida)
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 17/07/2023)The remediation of pollutants promoted by systems that are cheap and viable remains an important challenge in the field of catalysis. Carbon nitrides applied in photocatalytic systems are a promising class of materials for ... -
The coopetitive effect in supply chains: exploring the relationship between multiple supply chains from the focal agent perspective
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia de Produção - PPGEP, Câmpus São Carlos, 10/04/2024)This thesis explores the possibility of a form of interaction between supply chains known as coopetition, which combines cooperation and competition. The main objective is to investigate coopetition among multiple supply ... -
Síntese de nanopartículas de CuO e aplicações catalíticas
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Câmpus São Carlos, 28/03/2024)Global population growth, reaching 8 billion people in November 2022, will continue to impose significant pressures on industrial production, agriculture, urban mobility, and energy demand. Coupled with the depletion of ... -
Síntese de derivados de γ-lactamas, Δ1-pirrolinas e pirróis a partir de chalconas empregando aziridinas e 2H-azirinas
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 27/03/2024)The search for efficient synthetic methods for 5-membered N-heterocycles, such as γ-lactams and pyrroles, is constantly necessary, as these scaffolds are widely found in natural products and synthetic compounds with ... -
Algoritmo genético aplicado à ligas multicomponentes para armazenagem de hidrogênio: implementação de novos parâmetros termodinâmicos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 26/01/2024)Energy demand has increased significantly with the advancement of technology, which is why it is important to study new sources of clean energy. An alternative that has been studied and meets environmental standards is ... -
Microstructure and mechanicam properties of stationary and non-stationary upper shoulder bobbin tool friction stir welded 2219 Aluminum alloy
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 01/02/2024)With increasing concerns about carbon emissions and environmental impacts, the aerospace industry is increasingly focused on exploring lightweight materials as a means to improve fuel efficiency and reduce ecological ... -
Melhorando a tomada de decisões na construção: Modelagem não paramétrica de atrasos induzidos pelo clima
(Universidade Federal de São Carlos, UFSCar, Programa Interinstitucional de Pós-Graduação em Estatística - PIPGEs, Câmpus São Carlos, 23/05/2024)Effective construction project management faces significant challenges due to frequent delays, many of which are influenced by climatic variables. Anticipating these delays is crucial, and although various methods based ... -
Estudo da reação de hidrogenação de CO2 para a síntese de álcoois em catalisadores à base de Cu e Co
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 28/02/2024)CO2 is a gaseous chemical compound important for maintaining life on Earth, being used in the photosynthesis process by plants, which forms glucose and releases oxygen into the atmosphere. Furthermore, it is the main ... -
Correlações intrínsecas em sistemas tipo-Dirac confinados por um campo magnético constante
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 04/07/2024)The Weyl-Wigner formalism in phase space is investigated in the context of Dirac spinors as qubits correlated by continuous degrees of freedom. The extension to relativistic equations connects quantum mechanical phenomena ... -
Modelagem numérica do perfil térmico e do escoamento de material termoplástico por extrusão em um cabeçote customizado para manufatura aditiva
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Câmpus São Carlos, 10/04/2024)This work presents a procedure for modeling and numerical analysis of the flow of a thermoplastic fluid with pseudoplastic behavior applied to a custom miniature vertical head based on twin-screw extrusion for additive ... -
Considerações e possíveis soluções para o problema da estimação do mínimo populacional com aplicações em dados de terremotos
(Universidade Federal de São Carlos, UFSCar, Programa Interinstitucional de Pós-Graduação em Estatística - PIPGEs, Câmpus São Carlos, 29/04/2024)A myriad of physical, biological and other phenomena are better modeled with semi-infinite distribution families, in which case not knowing the populational minimum becomes a hassle when performing parametric inference. ... -
Estudo do tratamento térmico de envelhecimento em patamar simples e duplo da liga UNS N09925
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Câmpus São Carlos, 29/05/2023)It is well known that several researches related to the development of renewable and alternative energy sources are currently in course. However, with the continuous increase on energy demand around the world, it is still ... -
Um estudo do sistema vítreo cálcio-vanádio-fosfato
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 20/04/2022)In the present work, a study was carried out on the property changes that the addition of vanadium in the P2O5-CaO-V2O5 system can cause. A non-linear change of a glass property due to the mixing of different glass formers ... -
Otimização de compósito magnético bioativo para tratamento de tumores por hipertermia
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 25/08/2023)Bone cancer is a rare type of neoplasia that presents a high annual incidence of new cases and has sparked the interest of researchers in the development of promising therapeutic approaches, including controlled hyperthermia. ... -
Desenvolvimento de procedimentos automáticos para determinação fotométrica de alumínio em água potável e etanol em vinhos empregando o processo de multicomutação em análise em fluxo
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 28/05/2024)The quality of drinking water is crucial for public health, as is the quality of wines for the food industry. Aluminum, which poses health risks such as neurological disorders, has a maximum allowable limit of 200 µg L-1 ... -
Cálculo variacional: uma breve introdução e aplicações
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/02/2024)The aim of this end-of-course work is to present a brief introduction to variational calculus and its applications. In this way, the development consists of recalling concepts of normed vector spaces, metric spaces and ... -
Visitando algumas ferramentas da análise moderna para soluções EDP's
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 09/02/2024)In 1856, Riemann introduced the Dirichlet Principle as an innovative approach to the Dirichlet Problem, proposing a treatment based on a variational problem. Essentially, this principle aimed to minimize an energy functional ... -
Uma introdução aos espaços métricos e aos espaços vetoriais normados
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 08/02/2024)In this work, we present an introduction to Metric Spaces, starting with the definition and examples, defining and understanding the primary concepts of this context, such as open and closed balls, open and closed sets as ... -
Operations management in times of COVID-19 crisis: the role of management approaches to achieve resilience
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia de Produção - PPGEP, Câmpus São Carlos, 07/05/2024)The 2019 coronavirus pandemic (COVID-19) has had devastating consequences worldwide. To limit its spread, several approaches based on social distancing were adopted by governments and industries, which affected companies ...