Incremental Changes
Mostrando 25-36 de 96 artigos, teses e dissertações.
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25. Modelagem computacional de mudanças incrementais em objetos espaciais da realidade social / Computational modeling of incremental changes in spatial objects of the social reality
The social reality is determined by a variety of social phenomena that promote predetermined and interrelated changes, which depend on human cognition. They are called incremental changes, due to the fact they are considered to be stable until a new change occurs. Incremental changes occur generally as a result of human actions, and their spatio-temporal sem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2007
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26. Comparison of anaerobic threshold determined by visual and mathematical methods in healthy women
Several methods are used to estimate anaerobic threshold (AT) during exercise. The aim of the present study was to compare AT obtained by a graphic visual method for the estimate of ventilatory and metabolic variables (gold standard), to a bi-segmental linear regression mathematical model of Hinkley's algorithm applied to heart rate (HR) and carbon dioxide o
Brazilian Journal of Medical and Biological Research. Publicado em: 2007-04
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27. Voltage unbalace numerical evaluation and minimization:estimation by incremental sensitivity analysis and analytical solutions / Avaliação e minimização numérica do desequilíbrio de tensão : estimativa por análise de sensibilidade incremental e soluções analíticas
Voltage unbalance is one of the parameters analysed in power quality studies, representing the difference between the magnitudes of the voltages of a tri-phase electrical system, and the phase shift between these. It is desirable to have sinusoidal voltages with identical magnitudes and 120 electrical degrees phase shift between them, but in practice, there
Publicado em: 2007
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28. Modelagem computacional de mudanças incrementais em objetos espaciais da realidade social / Computational modeling of incremental changes in spatial objects of the social reality
A realidade social é determinada por uma variedade de fenômenos sociais que promovem mudanças pré-definidas, inter-relacionadas e que dependem da cognição humana. Essas mudanças são denominadas incrementais, pelas propriedades dos objetos espaciais afetados serem consideradas estáveis até a ocorrência de uma nova mudança. Essas modificações, ge
Publicado em: 2007
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29. Processo de formaÃÃo de estratÃgias em uma organizaÃÃo empreendedora: o caso da SatÃlite Distribuidora de PetrÃleo S.A
This dissertation aims to describe the strategies formation process at SatÃlite Distribuidora de PetrÃleo S.A., along its development trajectory, from 1976 to 2006. The specific objectives included the description of change and continuity on the organizationâs strategies, the comprehension about how the strategists had influence on the strategy management
Publicado em: 2007
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30. Aplicação orientada a objetos para análise físicamente não-linear com modelos reticulados de seções transversais compostas
This masters thesis refers to the computational implementation, according to objectoriented paradigm, of material nonlinear solution of finite element models of framed structures with composed and geometrically arbitrary cross sections. These sections are represented by decomposition in smaller areas, in which the materials nonlinear stress-strain relations
Publicado em: 2006
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31. 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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32. An incremental method for transmission loss allocation based on AC power flow / Um metodo incremental para alocação das perdas de transmissão baseado no fluxo de cargas CA
This work presents a method for active power transmission loss allocation among electrical market participants. In Brazil, the methodology to be implemented for loss allocation is based on incremental methods and defines loss factors for generators and loads. This technique uses a DC load flow to calculate the loss factors, and so it does not consider the co
Publicado em: 2005
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33. Agente topológico de aprendizado por reforço / Topological reinforcement learning agent
Reinforcement Learning (RL) methods have shown to be a good choice for decision-making problems due to their flexible and adaptive characteristics. Despite such promising features, RL methods often have their practical application restricted to small or medium size (at state, or state-action, space) problems mainly because of their standard strategies for va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2004
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34. Agente topológico de aprendizado por reforço / Topological reinforcement learning agent
Reinforcement Learning (RL) methods have shown to be a good choice for decision-making problems due to their flexible and adaptive characteristics. Despite such promising features, RL methods often have their practical application restricted to small or medium size (at state, or state-action, space) problems mainly because of their standard strategies for va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2004
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35. Incorporação da variavel ambiental na dinamica de inovação
The chemical sector represents a particularly critical set of problems with regard to its products toxicity and accumulativity, pollutant emission and major accidents. The opportunities and barriers to the incorporation of the environmental variable in this industrys innovative dynamics are the main topic of this thesis. It begins reviewing the historical
Publicado em: 2004
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36. Influencia da suplementação de Aspartato e Asparagina sobre a associação entre os limiares metabolicos e ventilatorios e sobre a taxa de oxidação de nutrientes durante o exercicio
The anaerobic threshold (A T), defined as the levei of work or the O2 consumption (V02) just below that at which metabolic acidosis and associated changes in gas exchange occur, is composed of a supposed cause-effect association of 2 individual thresholds - lactate or metabolic (MT) and ventilatory (VT). However the proposed mechanisms to explain musclelbloo
Publicado em: 2004