Tensors
Mostrando 1-12 de 49 artigos, teses e dissertações.
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1. An efficient general curvilinear coordinates finite element method for the linear dynamic study of thickness-independent shells
Abstract yyTo date, a large number of finite element methods have been developed to study the dynamics of shell structures. Most of them are generally based on the degenerated solid approach and other less in shell theories, but introducing, in this last case, some assumptions to analyze this problem: some of them refer to shallow shells (slightly curved she
Lat. Am. j. solids struct.. Publicado em: 27/06/2019
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2. Limites, fissuras, prazer e risco em festas de orgia para homens
Resumo Este artigo, resultado de uma pesquisa etnográfica sobre práticas sexuais coletivas entre homens, organizadas em espaços comerciais da cidade do Rio de Janeiro, busca analisar o desejo envolvido na busca de práticas em que a intensidade seja um elemento de destaque. Práticas estas em que o manejamento dos limites, o controle de si e a imersão em
Mana. Publicado em: 30/05/2019
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3. Grandezas físicas multidimensionais
Resumo No presente trabalho apresentamos a continuação do recente artigo “Grandezas Físicas Unidimensionais”, publicado na Revista Brasileira de Ensino de Física. A construção operacional de uma grandeza passa pela definição de seu domínio, separação do domínio em classes e, por fim, associação injetiva de um espaço de valores às classes.
Rev. Bras. Ensino Fís.. Publicado em: 25/03/2019
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4. Analytical solution for nonlinear dynamic behavior of viscoelastic nano-plates modeled by consistent couple stress theory
Abstract This paper analyses the non-stationary free vibration and nonlinear dynamic behavior of the viscoelastic nano-plates. For this purpose, a size-dependent theory is developed in the framework of the consistent couple stress theory for viscoelastic materials. The previously presented modified couple stress theory was based on some consideration making
Lat. Am. j. solids struct.. Publicado em: 17/09/2018
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5. Review of Experimental GAPT and Infrared Atomic Charges in Molecules
This review contains experimental values of polar tensors and generalized atomic polar tensor (GAPT) charges determined since the publication of the polar tensor formulism for infrared intensity interpretation in 1961. GAPT charges, also called mean dipole moment derivatives, for 167 atoms of 67 molecules are discussed and compared with infrared charges also
J. Braz. Chem. Soc.. Publicado em: 2016-06
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6. Failure behavior modeling of slender reinforced concrete columns subjected to eccentric load
AbstractThis work presents a numerical model to simulate the failure behavior of slender reinforced concrete columns subjected to eccentric compression loads. Due to the significant influence of the lateral displacements on the loading state provided by an eccentric load, geometric nonlinearity is considered. The responses of the concrete in tension and comp
Lat. Am. j. solids struct.. Publicado em: 2015-03
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7. Experimentação física do escoamento gás-líquido em uma coluna de bolhas retangular utilizando a técnica PIV e a técnica de sombras SHADOW / Gas- liquid experimentation in a rectangular bubble column using PIV and Shadow techniques
Bubble columns are multiphase contact devices for mass and heat transfer, wich are intensively used in different industrial areas. Flow and turbulence in these equipments are induced by the bubble rise motion. The hydrodynamics and bubble behavior in a homogeneous bubbly flow regime was analyzed in a rectangular laboratory-scale bubble column (50 x 20 x 220
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012
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8. Superfícies mínimas com curvatura constante nas formas espaciais 4-dimensionais / Minimal surfaces with constant curvature in 4-dimensional space forms
Este trabalho foi baseado nos artigos On CompactMinimal Surfaces with non-negative Gaussian Curvature in a Space of Constant Curvature: I e Minimal Surfaces with Constant Curvature in 4-dimensional Space Forms de Katsuei Kenmotsu que consistem em classificar superfícies mínimas com curvatura Gaussiana constante K nas formas espaciais 4-dimensionais, sem al
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
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9. Superfícies mínimas com curvatura constante nas formas espaciais 4-dimensionais / Minimal surfaces with constant curvature in 4-dimensional space forms
Este trabalho foi baseado nos artigos On CompactMinimal Surfaces with non-negative Gaussian Curvature in a Space of Constant Curvature: I e Minimal Surfaces with Constant Curvature in 4-dimensional Space Forms de Katsuei Kenmotsu que consistem em classificar superfícies mínimas com curvatura Gaussiana constante K nas formas espaciais 4-dimensionais, sem al
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
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10. Linearização de aplicações multilineares contínuas entre espaços de Banach e multi-ideais de composição / Linearization of continuous multilinear mappings between Banach spaces and composition multi-ideals
The rst aim of this dissertation is to construct the tensor product of nitely many linear spaces from elementary tensors and to show that this is the space through which multilinear mappings can be linearized. Next continuous multilinear mappings between Banach spaces are studied. The projective norm is introduced in the tensor product in order to perform th
Publicado em: 2010
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11. Filtros acústicos em cristais fonônicos
In this work, we have studied the acoustic phonon wave propagation within the periodic and quasiperiodic superlattices of Fibonacci type. These structures are formed by phononic crystals, whose periodicity allows the raise of regions known as stop bands, which prevent the phonon propagation throughout the structure for specific frequency values. This p
Publicado em: 2009
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12. Antena de microfita com substrato metamaterial
This paper presents a theoretical and numerical analysis of the parameters of a rectangular microstrip antenna with metamaterial substrate. The metamaterial (MTM) theory was applied along with Transverse Transmission Line (LTT) method to characterize substrate quantities and obtain the general equations of the electromagnetic fields. A study on metamaterial
Publicado em: 2008