Inverse Analysis Of Structures
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Public open spaces and physical activity: disparities of resources in Florianópolis
ABSTRACT OBJECTIVE: To analyze the association between sociodemographic characteristics of census tracts and the presence/quality of public open spaces and physical activity facilities. METHODS: A cross-sectional study was conducted in 643 census tracts in Florianópolis, Brazil, the presence and quality of public open spaces and physical activity faciliti
Rev. Saúde Pública. Publicado em: 28/11/2019
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2. Uma abordagem experimental e numérica para determinação de curvas de compressão para concreto simples e reforçados com fibras de aço
RESUMO A curva tensão-deformação do concreto é importante para o dimensionamento de estruturas, pois por meio dela é possível obter sua resistência à compressão, sua deformação de pico, o módulo de elasticidade e a tenacidade do concreto. Entretanto, essa é uma propriedade que não é comumente determinada nos ensaios de controle de qualidade do
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Implementação de um algoritmo numérico para solução da equação de Christoffel generalizada em acustoelasticidade. / Implementation of a numerical algorithm for solution of the generalized Chistoffel equation in acoustoelasticity.
Extensive studies carried out in the last decades on the propagation of ultrasonic waves in solids led to the development of nondestructive techniques for the assessment of the safety and integrity of industrial structures and components. The interest in the application of ultrasound techniques for stress measurement for example comes from the measurable cha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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4. Identification and the information matrix : how to get just sufficiently rich?
In prediction error identification, the information matrix plays a central role. Specifically, when the system is in the model set, the covariance matrix of the parameter estimates converges asymptotically, up to a scaling factor, to the inverse of the information matrix. The existence of a finite covariance matrix thus depends on the positive definiteness o
Publicado em: 2011
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5. Problemas de estruturas aditivas e multiplicativas propostos em livros didÃticos de matemÃtica: o impacto do Programa Nacional do Livro DidÃtico
This research presents an analysis of how additive and multiplicative problems are presented in Elementary School Mathematics textbooks. The aim of the study is to observe the impact that the PNLD, the Brazilian National Plan of Textbooks, has on the treatment given to the meanings of the arithmetic operations and the forms of symbolic representations presen
Publicado em: 2009
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6. Função de acoplamento t-Student assimetrica : modelagem de dependencia assimetrica / Skewed t-Student copula function : skewed dependence modelling
The Skewed t-Student distribution family, constructed upon the multivariate normal mixture distribution, known as mean-variance mixture, composed with the Inverse-Gamma distribution, has many desirable flexibility properties for many distribution asymmetry structures. These properties are explored by constructing copula functions with asymmetric dependence.
Publicado em: 2008
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7. Inverse modeling and shape optimization of an energy absorber / Modelamento inverso e otimização de forma de um absorvedor de impacto
This work presents a shape optimization methodology applied to structures submitted to impact loads in order to improve their crashworthiness. To this end, it is necessary to know the structural material properties, which were obtained using a dual experimental-optimization methodology. Optimum parameters are obtained for the Cowper-Symonds and Johnson-Cook
Publicado em: 2007
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8. Hyper-redundant robots with modules of parallel arquitecture. / Robô hiper-redundante com módulos de arquitetura paralela.
This research studies hyper-redundant robots focusing on the kinematics analysis. A hyper-redundant robot was developed based on modules of parallel architecture and binary actuators. Each module has three degrees-of-freedom, two rotational degrees of freedom with perpendicular axis and one translational degree of freedom. After searching for parallel struct
Publicado em: 2007
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9. Curvas de crescimento difÃsicas de fÃmeas Hereford com erros auto-regressivos e heterogeneidade de variÃncias / Difasic growth curves of Hereford females with auto-regressive errors and heterogenety of variances.
In the present study, the models of non-linear Difasic Logistic and Difasic Gompertz were adjusted, both weighed by the inverse of the variance with three different errors structures: independent errors (IE), first-class auto-regressive (AR (1)) and second-class auto-regressive (AR (2)) to weight-age data of 55 females of the Hereford race, raised in the Bag
Publicado em: 2007
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10. SISTEMÁTICA FILOGENÉTICA DOS GÊNEROS NEOTROPICAIS DA TRIBO DORSTENIEAE Dumort. Brosimum Sw, Helianthostylis Baillon e Trymatococcus Poepp. &Endl. (MORACEAE)
The Dorstenieae neotropical clade (Moraceae) is formed by Brosimum Sw (15 spp.), Helianthostylis Baillon (two spp.), and Trymatococcus Poepp. &Endl. (two spp.), and is well represented in the Amazonian biome, with Helianthostylis and Trymatococcus genera endemic to this region. Previous phylogenetic studies of the Moraceae showed that the neotropical Dorsten
Publicado em: 2007
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11. Análise inversa de estruturas com utilização de algoritmos genéticos. / Inverse analysis of structures with genetic algorithm management.
The men has since the past, tryed to control the nature. One of the way utilized for this, is his observation of the world. Through his observation, tries to understand the natures fenomena, to making theories and models. Charles Darwin, in his work Theories of Species Evolution, gives us informations for the knowledges of one of the most important natures l
Publicado em: 2006
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12. Fibras lignocelulósicas como agente de reforço de compósitos de matriz fenólica e lignofenólica / Lignocellulosic fibers as reinforcing agents in lignophenolic and phenolic matrix composites
In this work, lignocellulosic fibers from different sources (banana tree and coconut) were used as reinforcing agents in the preparation of phenolic and lignophenolic matrix composites. The phenol used in the matrix formulation was substituted both partially and totally by lignin, extracted from sugarcane bagasse by organosolv process, in the preparation of
Publicado em: 2006