Interior Points Method
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Correlation between Indoor and Outdoor Human Thermal Preferences: A Study of the 55-2004 ASHRAE Standard Method / Relações entre preferências térmicas humanas no interior de edificações e as temperaturas externas: um estudo sobre o método adotado na norma AHSRAE 55-2004
Thermal comfort is specifically related to thermal behavior in response to both indoor and outdoor air temperature. Human thermal acceptability to climate changes and its effects depend on several aspects. It relies not only on local climatic conditions, but also on personal traits which can interfere seriously with thermal preferences as well as with someon
Publicado em: 2007
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14. Otimização de estruturas reticuladas planas com comportamento geometricamente não linear / Optimization of plane frame structures with behavior geometrically nonlinear
The aim of this work is to present a formulation and corresponding computational implementation for sizing optimization of plane frames and cable-stayed columns considering geometric non liner behavior. The structural analysis is based on the finite element method using the updated lagrangian approach for plane frame and cable elements, which are represented
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/10/2006
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15. Resolução do problema de fluxo de potência ótimo reativo via método da função lagrangiana barreira modificada / Resolution of reactive optimal power flow problem via method of Lagrangian modified barrier function
This work proposes an approach that uses an association of the methods of modified barrier and primal-dual interior points for the resolution of the reactive optimal power flow (OPF) problem. On this purpose, a bibliographical review was accomplished, which enlightened the optimization concepts applied to the static system of electrical energy and the method
Publicado em: 2006
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16. RepresentaÃÃes sociais dos profissionais do Programa SaÃde da FamÃlia sobre o uso de drogas psicoativas no municÃpio de Fortaleza / Health professionals social representations from Family Health Program about psychoactives drugs the city of Fortaleza
The transformation that is happening in the global world provokes changes in social segments like educational, economical, cultural and health, contributing to instability condition in modern life. In this context, a lot of people desire to escape, destroying the old order or creating a new and better world, for retired to an interior world or utilizing for
Publicado em: 2006
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17. Edge detection and noise removal by use of a partial differential equation with automatic selection of parameters
This work deals with noise removal by the use of an edge preserving method whose parameters are automatically estimated, for any application, by simply providing information about the standard deviation noise level we wish to eliminate. The desired noiseless image u(x), in a Partial Differential Equation based model, can be viewed as the solution of an evolu
Computational & Applied Mathematics. Publicado em: 2005-04
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18. Inter-relationships between the quality of internal and external air in hospitals: the complex of infectious diseases Dr. Clementino Fraga in João Pessoa, Paraíba / Inter-relações entre a qualidade do ar externo e interno em espaços hospitalares : o complexo de doenças infecto-contagiosas Dr. Clementino Fraga em João Pessoa-Paraíba
This work has evaluated the quality of indoor air, from both biological and physicochemical points of view, in the Complexo de Doenças Infectocontagiosas Dr. Clementino Fraga, João Pessoa - Paraíba, using the Square Sampling technique, the air-exposing method by impactation with a linear accelerator, and a series of temperature, air humidity and speed and
Publicado em: 2005
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19. AN ALGORITHM FOR CURVE RECONSTRUCTION FROM SPARSE POINTS / UM ALGORITMO PARA RECONSTRUÇÃO DE CURVAS A PARTIR DE PONTOS ESPARSOS
Curve and surface reconstruction from sparse data has been recognized as an important problem in computer graphics. Non structured data points (i.e., a set of points with no knowledge of connectivity and proximity) together with the existence of noise make this problem quite difficult. In order to solve it, several techniques have been proposed, such as, som
Publicado em: 2003
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20. DESIGN OF CONCRETE SLAB PANELS USING THE FINITE ELEMENT METHOD AND MATHEMATICAL PROGRAMMING / FERRAMENTAS COMPUTACIONAIS PARA O PROJETO DE LAJES DE CONCRETO ARMADO
In this work it is presented computational methodologies for the design of reinforced concrete massive slabs. The design of the slabs is made using an elastic and perfect elastoplastic analysis, an optimum design using mathematical programming and a plastic analysis project. The conventional project of reinforced concrete slabs has been made starting from ef
Publicado em: 1998
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21. Estudo da função de correlação do modelo de Potts na rede de Bethe. / Study of pair correlation function of the Potts model in the Bethe lattice.
In this work we consider the Potts model on the Cayley tree subjected to a magnetic Field. This field can be represented by the interaction of the tree spins with an additional one, denominated ghost spin. This new lattice is then called closed-asymmetric Cayley tree. Being a hierarchical lattice it comes to have exact solutions which are obtained when the r
Publicado em: 1988
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22. Composição floristica e estrutura fitossociologica de uma floresta do interior do Estado de São Paulo : reserva estadual de Porto Ferreira
The floristic composition and structure of a semideciduous broad-leaved forest in the planalto of São Paulo State were studied. The site used was the state reserve of Porto Ferreira (belonging to the Instituto Florestal ), with a total area of 611,55 ha. The climate is of type Cwa, there is little variation in altitude (540 to 608 m) but some soil variation
Publicado em: 1984
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23. High accuracy finite difference approximation to solutions of elliptic partial differential equations
A flexible finite difference method is described that gives approximate solutions of linear elliptic partial differential equations, Lu = G, subject to general linear boundary conditions. The method gives high-order accuracy. The values of the unknown approximation function U are determined at mesh points by solving a system of finite difference equations Lh
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24. SIMS: computation of a smooth invariant molecular surface.
SIMS, a new method of calculating a smooth invariant molecular dot surface, is presented. The SIMS method generates the smooth molecular surface by rolling two probe spheres. A solvent probe sphere is rolled over the molecule and produces a Richards-Connolly molecular surface (MS), which envelops the solvent-excluded volume of the molecule. In deep crevices,