Interface Structures
Mostrando 13-24 de 417 artigos, teses e dissertações.
-
13. Static Limit Analysis of Reinforced Soil Structures by a Simple Finite Element and Second-Order Cone Programming
Abstract To discretize reinforced soil structures in plane strain and predict their collapse load, a simple three-node triangular finite element is formulated based on the static theorem of the limit analysis. The element satisfies the equilibrium equations and the mechanical boundary conditions in a weak sense. A modified Mohr-Coulomb yield surface is adopt
Lat. Am. j. solids struct.. Publicado em: 2017
-
14. EMPIRICAL COMPARISON OF THE MULTIDIMENSIONAL MODELS OF ITEM RESPONSE THEORY IN E-COMMERCE
ABSTRACT The measurement of latent traits within the organizational field such as quality, effectiveness and learning has been conducted in several formats using a wide variety of quantitative methods, including Item Response Theory that consistently increased in organizational studies. The purpose of this article is to compare the hierarchical and non-hiera
Pesqui. Oper.. Publicado em: 2016-12
-
15. Technique for implanting intramuscular electrodes in the diaphragm by videolaparoscopy in pigs
PURPOSE: To describe a novel approach for implanting intramuscular electrodes in the diaphragm through videolaparoscopy. METHODS: We used twelve pigs for this videolaparoscopic technique, which permits at the same time to explore the diaphragm, to locate its motor points and to fix the electrodes in the diaphragm bilaterally. In this technique we used thr
Acta Cir. Bras.. Publicado em: 2016-02
-
16. Stick-slip analysis in vibrating two-layer beams with frictional interface
This paper attempts to present a new analysis for dynamical behavior of two-layer beams with frictional interface which held together in a pressurized environment, including stick-slip nonlinear phenomenon. To achieve a proper outlook of two-layer beam structures behavior, it is essential to realize the mechanisms of motion precisely. Coupled equation of tra
Lat. Am. j. solids struct.. Publicado em: 2013-09
-
17. XPS, XRD and laser raman analysis of surface modified of 6150 steel substrates for the deposition of thick and adherent diamond-like carbon coatings
Although the 6150 steel has an excellent fatigue and impact resistance, it is unsuitable to operate it when the corrosion is a limited factor. We propose here a sequence of steel pre-treatment by carburizing, carbonitriding and nitriding in order to improve the poor adhesion between Diamond Like-Carbon coatings on steel. This sequence is our attempt to reduc
Mat. Res.. Publicado em: 25/02/2013
-
18. Microtopografia de implantes de titânio com diferentes tratamentos de superfícies à microscopia eletrônica de varredura e de força atômica / Microtopography of titanium implants with different surface treatments scanning in electronic microscopy and atomic force microscopy
Introduction: Bone-implant interface quality may be influenced by surface roughness and determines how cells interact, cling to and fix to, therefore can enhance and shorten the time for osseointegration. This study aims to analyze qualitatively the topography and architecture of different dental implants surfaces, to compare and describe them. MATERIALS AND
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
-
19. Análise de estruturas aeronáuticas reforçadas por doublers colados / Analysis of aeronautical structures reinforced by bonded doublers
Na indústria aeronáutica o uso de juntas coladas, rebitadas, parafusadas e soldadas na união de partes estruturais é de extrema importância no projeto das aeronaves. No entanto, devido as suas vantagens, as juntas coladas representam uma das principais tecnologias disponíveis para a exploração de novos materiais e para o desenvolvimento de projetos i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2012
-
20. ANÁLISE TEXTUAL DE PRODUÇÕES AUTORREFLEXIVAS DE ALUNOS DE PEDAGOGIA: INTERFACE SOCIOCOGNITIVA DOS LETRAMENTOS ACADÊMICOS MÁRCIA
Although reading and writing are essential practices to foster learning and disseminate culture, they have been the subject of recurring debate and criticism in Brazil, not only as a result of low rates achieved in education statistics, but also because of the significant weaknesses faced by citizens in the exercise of social practices mediated by written te
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
-
21. Influência do material de infraestrutura e do desajuste vertical de próteses parciais fixas implantossuportadas nas tensões transmitidas às estruturas protéticas e ao tecido ósseo peri-implantar / Influence of framework material and vertical misfit of implant-suported partial prostheses on the stresses in prosthetic structures and peri-implant bone tissue
O objetivo neste estudo foi avaliar a influência do material de infraestrutura e diferentes níves de desajuste vertical na concentração de tensões em prótese parcial fixa implantossuportada (infraestrutura e porcelana de cobertura), parafuso de retenção e tecido ósseo peri-implantar durante o assentamento protético e frente à aplicação de carga
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
-
22. Finite element nonlinear analysis of high-rise unreinforced masonry building
A simple efficient algorithm based on compressive diagonal strength of unreinforced masonry walls is presented to determine capacity curve of unreinforced masonry building. The compressive strength is calculated based on a new close form solution. The new close form solution is determined based on predicted results using interface elements for modeling of mo
Lat. Am. j. solids struct.. Publicado em: 2012-10
-
23. HydroPaCe: uma metodologia para análise de inibição cruzada em serino proteases através de centroides de regiões hidrofóbicas
Interfaces of protein-protein interactions contain important information about molecular recognition. This work aims at the discovery of conserved patterns in this region. We believe it is essential to understand how substrates and inhibitors are bound and for predicting molecular binding. When an inhibitor binds to enzymes with different structures, sequenc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/11/2011
-
24. Avaliação númérica de ensaios push-out com conectores de cisalhamento tipo pino e perfobond. / Numerical evaluation of push-out tests with stud and perforbond shear connectors.
Recentemente a utilização de estruturas mistas, aço concreto, vem ganhando espaço nas construções. Isso deve-se principalmente a economia de tempo em sua execução. Além disto, nesta solução a utilização do aço e do concreto otimiza as características estruturais de seus elementos: a resistência a tração do aço e a compressão do concreto.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011