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Now showing items 21-30 of 282
Avaliação da eficiência energética no processo de retificação de metal duro
(Universidade Federal de São Carlos, 2022-02-17)
The quest to make manufacturing processes sustainable is an increasingly important need. In this context, the present work assessed the grinding process of cemented tungsten carbide inserts with SNGN geometry (square, with ...
Construção automática de grafo de conhecimento no domínio do e-commerce
(Universidade Federal de São Carlos, 2022-04-27)
Extracting knowledge efficiently, when large volumes of data are generated daily, is still a challenge. In most cases, these data are unstructured, that is, they are presented in textual or visual format without a clear ...
Análise de um conversor fonte de tensão a quatro fios com corrente de neutro gerada por cargas desequilibradas
(Universidade Federal de São Carlos, 2022-02-24)
Several studies have examined the reduction of carbon dioxide emissions into the
atmosphere. The use of sustainable energy sources, such as solar and wind power, is focused by some of these studies. The Voltage Source ...
Modelagem matemática aplicada ao estudo de células a combustível a etanol direto
(Universidade Federal de São Carlos, 2022-03-09)
The current fuel cell market is dominated by Hydrogen cells. Nevertheless, due to Hydrogen’s high reactivity, the difficulty in storage and the lack of infrastructure to distribute it, Hydrogen cells might not be the most ...
Obtenção e aplicação de fotoanodos baseados em TiO2 com adição de nitretos de carbono polimérico do tipo poli(heptazina imida)
(Universidade Federal de São Carlos, 2022-07-01)
In this work, poly(heptazine imide) carbon nitrides containing metals single atom in the ionic form were evaluated alone and in the combination with TiO2. Initially, a percentage of 2.5% of the nickel-containing material ...
High integrated battery monitoring system with active balancing up to ±10A
(Universidade Federal de São Carlos, 2022-02-22)
This master's thesis describes the development, construction, and setup of a flexible and modular, highly integrated battery monitoring system. The electronic unit uses an active balancing process with currents up to ±10A ...
Attractors for processes on time-dependent spaces
(Universidade Federal de São Carlos, 2022-04-12)
The goal of this master’s degree dissertation is to study the asymptotic behavior of non-autonomous
hyperbolic partial differential equations with time-dependent coefficients. In order to achieve that, we
introduce the ...
América Latina: urbanização e luta pelo direito à cidade
(Universidade Federal de São Carlos, 2022-09-29)
Several efforts were concerned about indicating paths and opportunities for the development of Latin America. As for example, the ECLAC in the 1950s and the organization of the Mercosur, in 1991. However, the continent as ...
Desenvolvimento de procedimentos para a determinação de cobre e zinco em fertilizantes minerais misto por espectrometria de emissão óptica com plasma induzido por micro-ondas (MIP OES)
(Universidade Federal de São Carlos, 2022-10-21)
DEVELOPMENT OF PROCEDURES FOR COPPER AND ZINC DETERMINATION IN MIXED MINERAL FERTILIZERS BY MICROWAVE-INDUCED PLASMA OPTICAL EMISSION SPECTROMETRY (MIP OES). In the pulp industry, eucalyptus, introduced in Brazil in 1904, ...
Desenvolvimento de um protótipo para uso de dados não estruturados em sistema de medição de desempenho
(Universidade Federal de São Carlos, 2022-06-29)
Given the potential that big data can bring to organizations with the use of the large amount of unstructured data generated quickly in different formats and sources, and the scarcity of empirical research to validate its ...