Applications Mathematics
Mostrando 25-36 de 45 artigos, teses e dissertações.
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25. Parábola e catenária: história e aplicações. / Parabola and Catenary: history and applications.
Ao contrário da catenária, o estudo da parábola é encontrado com freqüência nos livros didáticos de matemática. Dois livros didáticos foram analisados para esta pesquisa: o livro de Olavo Freire de 1894, que associa o formato do cabo pênsil ao de uma parábola, e o livro da década de 1970 de Osvaldo Sangiorgi, que relaciona à figura de um balanç
Publicado em: 2008
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26. Teoria de jogos nebulosos na resolução de problemas de decisão e conflito de interesses / Fuzzy game the theory to solve decision making and conflicting problems
Game theory is a branch of applied mathematics whose aim is to model and study decision making in conflicting situations. In these situations, the main goal is to choose the best strategy for all the players in the game, that is, to find the equilibrium solutions. Game theory can be defined as the study of how self-interested entities interact and make decis
Publicado em: 2007
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27. A VPN (Virtual Private Network) design based on reconfigurable computing and applied to mobile robots / Projeto de uma VPN(Rede Privada Virtual) baseada em computação reconfigurável e aplicada a robôs móveis
This work designs a system that implements a VPN using FPGA (Field Programmable Gate Array) reprogrammable circuits, which are the basis of reconfigurable computing. VPNs use cryptography to allow private communication between parts. In this manner, the computational cost of the cryptography is handled by the hardware, achieving great performance and allowin
Publicado em: 2007
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28. Computational aspects of the Helly property: a survey
In 1923, Eduard Helly published his celebrated theorem, which originated the well known Helly property. Say that a family of subsets has the Helly property when every subfamily of it, formed by pairwise intersecting subsets, contains a common element. There are many generalizations of this property which are relevant to some parts of mathematics and several
Journal of the Brazilian Computer Society. Publicado em: 2006-06
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29. Um Novo Método de Geração de Sinais Complexos / A new method for wave form generation
In this work new applications in digital systems, encryption systems, data transmission, etc., through a new mathematical approach are described. This work presents some new important DNAx technique contributions to mathematics, physics and engineering fields. First of all the DNAx equations are defined and applied to definition of Delta of Dirac function, U
Publicado em: 2006
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30. Da álgebra à enfermagem: um caminho de mão dupla / From algebra to nursing two side way
The relevance of this research is base don the issues related to the possibility of deepening into discussions and reflections on how to use the problem-situations which involve the proportion and reason concepts and they were arisen and elaborated from observations of nursing-professional practice that may be applied to technical course student graduation a
Publicado em: 2006
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31. Semigroup theory and controllability of neutral systems / Teoria de semigrupos e controlabilidade de sistemas neutros
Neste trabalho de dissertação de mestrado, fazemos algumas observações a respeito de dois¶ artigos de pesquisa recentes, os quais estabelecem resultados falsos sobre existência de soluções controlabilidade exata de sistemas de controle abstratos do tipo neutro modelados na forma¶8<:¶ d ¶ dt ¶(x(t) + G(t, xt)) = Ax(t) + F(t, xt) + Cu(t), t 2 I = (
Publicado em: 2006
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32. Contingent claim valuation with penalty costs on short selling positions. / Um modelo estocástico para o apreçamento de derivativos com penalidades em vendas a descoberto.
In this work we present a financial theory with penalty costs on short selling positions. Penalty costs differ from transaction costs for they do not depend on changes on trading positions (strategies). In the case of short selling in stocks, the investor borrows and then sells the position; in this case, the penalty costs are associated with the borrowing r
Publicado em: 2006
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33. Mathematics as a Game of Types
This thesis presents a grammar-based approach to the specification of mathematical notation. The method introduced is based on a meta-strueture that uses attributed context-free grammars for capturing the meaning of mathematical concepts. This structure supports the creation of multi-purpose documents and allows the specification of mathematical notation in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2005
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34. EVOLUÇÃO DE UNIÃO DE BOLAS A PARTIR DO EIXO MEDIAL / EVOLUTION OF UNION OF BALLS FROM ITS MEDIAL AXIS
The computational study of unions of balls has applications in several domains of the Mathematics. The purpose of this dissertation is to propose a simplification of the union of balls in R2 through a movement that obeys the direction of the medial axis in order to simplify it, maintaining the major geometric elements of its shape. The disconnection of the s
Publicado em: 2005
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35. COMPLEXOS DE MORSE DISCRETOS E GEOMÉTRICOS / GEOMETRIC DISCRETE MORSE COMPLEXES
Differential geometry provides an intuitive way of understanding smooth objects in the space. However, with the evolution of geometric modeling by computer, this tool became both necessary and difficult to transpose to the discrete setting. The power of Morse theory relies on the link it created between differential topology and geometry. Starting from a com
Publicado em: 2005
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36. Modelos de trafego para fluxos gerados pelo protocolo UDP / Traffic models for UDP streams
An important characteristic of the traffic generated by IP protocol is the existence of scaling, since it has great impact on the performance of traffic control mechanism. Therefore, it has been the focus of attention in many researches. The scaling nature of IP traffic has generated lots of controversy. At small time scales the traffic is very irregular and
Publicado em: 2005