Shape Sensitivity Analysis
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. ADDITIONAL ABDOMINAL MEASUREMENTS ARE A USEFUL TOOL TO EVALUATE BODY COMPOSITION IN OBESE WOMEN
RESUMO CONTEXTO: O acúmulo de tecido adiposo excessivo no ganho de peso se dá em maior proporção no segmento do tronco, leva à alteração dos formatos corporais dificultando a tomada de medidas antropométricas, em especial a circunferência abdominal (CA). OBJETIVO: Avaliar a sensibilidade de medidas adicionais na região abdominal, considerando c
Arq. Gastroenterol.. Publicado em: 30/09/2019
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2. Effect of Aerodynamic Configuration Parameters on Lateral-Directional Stability of Double-Swept Flying Wing Aircraft
ABSTRACT: Poor lateral-directional stability due to the absence of vertical stabilizer is a great risk to the aircraft with flying wing layout. In this paper, an unmanned aerial vehicle with this kind of configuration is chosen as the research object. A three-dimensional model of the unmanned aerial vehicle is established, and then the sensitivity analysis i
J. Aerosp. Technol. Manag.. Publicado em: 09/09/2019
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3. Chromophoreasy, an Excel-Based Program for Detection and Integration of Peaks from Chromatographic and Electromigration Techniques
This paper describes the development, evaluation, features and applications of Chromophoreasy, an alternative Excel-based program for recognition and integration of chromatographic and electrophoretic peaks. The proposed recognition is made according to parameters adjustable by the analyst, such as time range, noise smoothing window size and slope/curvature
J. Braz. Chem. Soc.. Publicado em: 2016-10
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4. Application of the Complex Variable Semi-analytical Method for Improved Displacement Sensitivity Evaluation in Geometrically Nonlinear Truss Problems
AbstractThe application of gradient-based methods to structural optimization problems usually requires the determination of displacement sensitivities with respect to design variables. In this regard, it is important to have at hand comprehensive methods for sensitivity analysis, which show stability, efficiency and accuracy. Particularly, application of the
Lat. Am. j. solids struct.. Publicado em: 2015-05
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5. Topological derivative-based topology optimization of structures subject to multiple load-cases
AbstractThe topological derivative measures the sensitivity of a shape functional with respect to an infinitesimal singular domain perturbation, such as the insertion of holes, inclusions or source-terms. The topological derivative has been successfully applied in obtaining the optimal topology for a large class of physics and engineering problems. In this p
Lat. Am. j. solids struct.. Publicado em: 2015-05
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6. Differentiation between tuberculosis and leukemia in abdominal and pelvic lymph nodes: evaluation with contrast-enhanced multidetector computed tomography
PURPOSE: To compare the characteristics of tubercular vs. leukemic involvement of abdominopelvic lymph nodes using multidetector computed tomography (CT). MATERIALS AND METHODS: We retrospectively reviewed multidetector computed tomography features including lymph node size, shape, enhancement patterns, and anatomical distribution, in 106 consecutive patien
Clinics. Publicado em: 2015-03
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7. Mechanical properties of nanocomposite laminated structure and its sensibility to modal analysis procedure
In this work, tensile and shear modulus, as well as Poisson's ratio of a woven orthotropic nanocomposite plate were determined from vibration data. Plates used in the experiment were 16 layers S2-glass/epoxy composite manufactured by vacuum assisted wet layup. The nanocomposite plate was obtained by adding 0%, 1%, 2%, 5% and 10% nanoclays in weight to the ep
Lat. Am. j. solids struct.. Publicado em: 2014-03
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8. O potencial dos espaços abertos na qualificação urbana : uma experiência piloto na Cidade Universitária Zeferino Vaz / The potencial of open spaces in the urban qualification : a design experiment at Cidade Universitária Zeferino Vaz
The present work focuses on open spaces for collective use as articulators of the shape, use and appropriation of the contemporary city. It is the continuity of a research that started in the master thesis, where the concept of the Architecture of the Boundary involved the redesign of the territories that mediate the public and the private realms. The hypoth
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
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9. Análise de sensibilidade topológica em modelos constitutivos multi-escalas / Topological Sensitivity Analysis in Constitutive Multi-Scale Models
The purpose of the present work is to carry out a topological sensitivity analysis in constitutive multi-scale models. By making use of the Hill-Mandel Principle of Macro-Homogeneity and the concept of volume average, a variational formulation was established to derive a clearly structured axiomatic framework for constitutive multi-scale models of the presen
Publicado em: 2009
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10. Análise de sensibilidade topológica de segunda ordem / Second order topological sensitivity analysis
The topological derivative provides the sensitivity of a given shape functional with respect to an infinitesimal non-smooth domain pertubation (insertion of hole or inclusion, for instance). Classically, this derivative comes from the second term of the topological asymptotic expansion, dealing only with inifinitesimal pertubations. However, for pratical app
Publicado em: 2008
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11. Processamento de amostras fecais e desenvolvimento da tecnica de analises de imagens por computador, para o diagnostico das enteroparasitoses / Processing of samples feces and development of the technique of analyses of images for computer, for the diagnosis of the enteroparasitoses
In the present study, we investigated on fecal sample processings, development and evaluation of a computer system for parasite image analysis. We observed that the fecal processing step was critical, but, essential for providing clean parasite structures, with reduced amount of fecal microdebris, to the system of computer analysis. Several conventional para
Publicado em: 2008
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12. Morphological divergence rate tests for natural selection: uncertainty of parameter estimation and robustness of results
In this study, we used a combination of geometric morphometric and evolutionary genetics methods for the inference of possible mechanisms of evolutionary divergence. A sensitivity analysis for the constant-heritability rate test results regarding variation in genetic and demographic parameters was performed, in order to assess the relative influence of uncer
Genetics and Molecular Biology. Publicado em: 2005