Model Updating
Mostrando 13-24 de 66 artigos, teses e dissertações.
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13. Práticas de leitura de professoras na contemporaneidade &literatura de autoajuda / Teachers¿ reading practices in contemporary &self-help literature
It is the study of the phenomenon of self-help literature in the self-education that appears among readings practice by teachers who work in the early years of elementary school. The starting point is the current teaching professional scenario, which is characterized by both the imperatives of constant updating and teacher depreciation. In this context there
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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14. Solving the dual subproblem of the Method of Moving Asymptotes using a trust-region scheme
An alternative strategy to solve the subproblems of the Method of Moving Asymptotes (MMA) is presented, based on a trust-region scheme applied to the dual of the MMA subproblem. At each iteration, the objective function of the dual problem is approximated by a regularized spectral model. A globally convergent modification to the MMA is also suggested, in whi
Computational & Applied Mathematics. Publicado em: 2011
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15. Estudo Avaliativo de dois cursos de EducaÃÃo FÃsica no MunicÃpio de Fortaleza via teoria da gestÃo da informaÃÃo e do conhecimento / Evaluate study of two graduate school of Physical Education in Fortaleza City via theory of the information management and knowledge
The purpose of this study is to evaluate management of information and knowledge in two graduate school of physical education: a public institution and a private one. The theoretical base is the Davenport model (1998). The empirical date were collected through a questionnaire and a evaluation scale. The questionnaire aimed to characterize the subjects involv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2010
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16. A structure-preserving iteration method of model updating based on matrix approximation theory
Some theories and a method are discussed on updating a generalized centrosymmetric model. It gives a generalized centrosymmetric modified solution with partial prescribed least square spectra constraints. The emphasis is given on exploiting structure-preserving algorithm based on matrix approximation theory. A perturbation theory for the modified solution is
Computational & Applied Mathematics. Publicado em: 2010-06
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17. Analysis of creep and shrinkage and its utilization in health monitoring of reinforced concrete column. / Análise da deformabilidade por fluência e retração e sua utilização na monitoração de pilares de concreto.
This thesis presents the study of the time dependent deformation of concrete structures due to creep and shrinkage. Creep, shrinkage, compressive strength, splitting tensile strength and modulus of elasticity tests were performed in mixtures commonly used in construction. Experimental parameters were obtained from these mechanical characterizations and creep
Publicado em: 2010
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18. Caracterização experimental e modelagem do comportamento vibratório de estruturas submersas / Experimental Characterization and Modeling of the Vibration Behavior of Submerged Structures
Este trabalho investiga os procedimentos de caracterização experimental e numérica por elementos finitos do comportamento dinâmico de estruturas submersas. Com base na hipótese de que o fluido permaneça estático, são feitas simulações numéricas visando à obtenção de respostas temporais e respostas harmônicas de dois tipos de estruturas: vigas
Publicado em: 2010
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19. Abordagem sistemática para construção e sintonia de estimadores de estados não-lineares
Este trabalho apresenta metodologias para a construção e a sintonia de estimadores de estados não-lineares visando aplicações práticas. O funcionamento de um estimador de estados não-linear está calcado em quatro etapas básicas: (a) sintonia; (b) predição; (c) atualização da matriz de covariância de estados; (d) filtragem e suavização dos est
Publicado em: 2010
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20. General detection model in cooperative multirobot localization
The cooperative multirobot localization problem consists in localizing each robot in a group within the same environment, when robots share information in order to improve localization accuracy. It can be achieved when a robot detects and identifies another one, and measures their relative distance. At this moment, both robots can use detection information t
Journal of the Brazilian Computer Society. Publicado em: 2009-09
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21. Metrics for nonlinear model updating in structural dynamics
The aim of this paper is to perform a comparative study between different distance measures or metrics for use in nonlinear model updating using vibration test data. Four metrics derived from both frequency and time domain updating approaches are studied, including the harmonic balance method, the constitutive equation error, the restoring force surface and
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-03
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22. PREVISÃO DE ESTOQUE INICIAL DE ITENS ELETRÔNICOS SOBRESSALENTES REPARÁVEIS - UM ESTUDO DE CASO APLICANDO O MODELO METRIC / INITIAL STOCK PREVISION OF ELETRONIC REPAIRABLE SPARES ITEMS - A CASE STUDY WITH APPLICATION OF THE METRIC MODEL
The needs, acquisition and distribution of spare parts in an optimized way is very important to support efficiently the logistic maintenance system. This job development, searching a case study that it had its scope in based real data existent on the technical and commercial Proposal for VHF communication Netware, has been worked this subject showing the com
Publicado em: 2009
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23. AutonomousDB: uma ferramenta para propagação autônoma de atualizações de esquemas de dados
One of the biggest challenge of building and maintaining applications with long life cycles is dealing with the inevitable changes in requirements that occur over time. Many of these applications depend on DBMS that most often suffer direct consequences in their databases schemas due to changes in the reality that they model. This changes must be controlled
Publicado em: 2009
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24. REDES NEURAIS NA MANUTENÇÃO PREDITIVA DE CAMINHÕES FORA DE ESTRADA / NEURAL NETWORKS FOR PREDICTIVE MAINTENANCE ON OFF-HIGWAY TRUCKS
With the increasing demand for ore in the world, the complexity, size and price of mining equipment have increased considerably. As these machines have embedded monitoring technology, the use of such data to increase the reliability and availability of the equipment has become essential in order to reduce maintenance costs. The objective of this work is deve
Publicado em: 2009