Fuzzy Partial System
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Sistema p-Fuzzy aplicado às equações diferenciais parciais / Model P-Fuzzy applied to partial differential equations
Descrever matematicamente os fenômenos naturais para fazer previsões e tomar decisões é um dos grandes desafios da matemática. Vários fenômenos podem ser descritos através de equações diferenciais parciais, entretanto muitos desses fenômenos apresentam variáveis linguísticas, isto é, informações vagas e imprecisas. Essa característica dificu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2011
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2. Fuzzy logic applied to the modeling of the transfer of water in soils / LÃgica fuzzy aplicada à modelagem da transferÃncia de Ãgua em solos
Modeling water movement in the unsaturated soil requires a great number of parameters and variables such as the initial soil-water content, the saturated soil-water content, and the saturated hydraulic conductivity, which can relatively easily be assessed. Other functions such as hydraulic conductivity and matric potential which are nonlinear functions of th
Publicado em: 2009
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3. Computational methodology to evaluate the quality of power systems restoration plans / Metodologia computacional para avaliação da qualidade de planos de recomposição de sistemas de energia eletrica
A successful restoration depends on the quality of the restoration plans, that describe the sequence of control actions that must be executed to reenergize different areas (of the power system) just after total or partial blackouts. This work proposes a methodology to automatically evalute the quality of power system restoration plans, related to (a) the fle
Publicado em: 2005
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4. Estudo comparativo entre tecnicas de inteligencia artificial e modelos lineares em determinações quantitativas no infravermelho proximo
In this work it was done a comparative study among the performances of different artificial intelligence techniques and two multivariate linear calibration methods (Multiple Linear Regression and Partial Least Squares), in three different chemical systems for quantitative determination in the near infrared region. The artificial intelligence techniques are a
Publicado em: 2003
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5. UM SISTEMA DE DIAGNÓSTICO DE EQUIPAMENTOS ELÉTRICOS DE ALTA TENSÃO COM BASE NA OCORRÊNCIA DE DESCARGAS PARCIAIS / A DIAGNOSTICS SYSTEM OF HIGH VOLTAGE POWER APPARATUS BASED IN PARTIAL DISCHARGES OCURRENCE
High voltage (HV) power apparatus are fundamental parts in the industrial process. It is also well Known that electrical insulation systems are the parts that present more problems through the life cycle of an HV apparatus. The dielectric properties of materials are altered during operation time and for this reason they should be monitored. Among the main an
Publicado em: 2001
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6. On the controllability of distributed systems
To “control” a system is to make it behave (hopefully) according to our “wishes,” in a way compatible with safety and ethics, at the least possible cost. The systems considered here are distributed—i.e., governed (modeled) by partial differential equations (PDEs) of evolution. Our “wish” is to drive the system in a given time, by an adequa
The National Academy of Sciences of the USA.