Comparison Principle
Mostrando 1-12 de 103 artigos, teses e dissertações.
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1. Two-dimensional beams in rectangular coordinates using the radial point interpolation method
Abstract The three-dimensional Theory of Elasticity equations lead to a complex solution for most problems in engineering. Therefore, the solutions are typically developed for reduced systems, usually symmetrical or two-dimensional. In this context, computational resources allow the reduction of these simplifications. The most recognized methods of algebraic
REM, Int. Eng. J.. Publicado em: 2020-03
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2. Gestión eficiente y ética en la efectivización de los servicios públicos relativos a derechos sociales
Abstract The aim of this paper is to analyze the need to provide in an efficient and ethical way the public utilities related to social rights. For this, the difference between the concepts of efficiency and effectiveness is demonstrated, showing the relationship among these issues and the principle of equity, that guides all the provision of public utilitie
Rev. Investig. Const.. Publicado em: 15/04/2019
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3. Transgênicos e o princípio de equivalência substancial
RESUMO Objetivamos discutir os principais argumentos que estão envolvidos no debate sobre a cientificidade do Princípio de Equivalência Substancial (PES), que afirma serem os OGM quimicamente equivalentes aos organismos selecionados pelas técnicas tradicionais de melhoramento, não requerendo, portanto, estudos toxicológicos adicionais. Problematizamos
Estud. av.. Publicado em: 2019-01
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4. Comparison of semi and fully-implicit time integration schemes applied to a damage and fatigue phase field model
Abstract In this work, we apply semi and fully-implicit time integration schemes to the damage and fatigue phase field presented in Boldrini et al. (2016). The damage phase field is considered a continuous dynamic variable whose evolution equation is obtained by the principle of virtual power. The fatigue phase field is a continuous internal variable whose
Lat. Am. j. solids struct.. Publicado em: 14/06/2018
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5. 1D analysis of laminated composite and sandwich plates using a new fifth-order plate theory
Abstract In the present study, a new fifth-order shear and normal deformation theory (FOSNDT) is developed for the analysis of laminated composite and sandwich plates under cylindrical bending. The theory considered the effects of transverse shear and normal deformations. To account for the effect of transverse shear deformation, in-plane displacement uses
Lat. Am. j. solids struct.. Publicado em: 23/04/2018
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6. Free Damped Vibration of Rotating Truncated Conical Sandwich Shells Using an Improved High-Order Theory
Abstract In the present paper, an improved high-order theory is employed to study the free vibration of rotating truncated sandwich conical shells with laminated face sheets and a soft core. The formulation is based on a three-layer sandwich model. First-order shear deformation theory (FSDT) is used for face sheets and quadratic and cubic functions are assum
Lat. Am. j. solids struct.. Publicado em: 2017-12
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7. Three-Dimensional Rail-Bridge Coupling Element of Unequal Lengths for Analyzing Train-Track-Bridge Interaction System
Abstract A three-dimensional rail-bridge coupling element of unequal lengths in which the length of the rail element is shorter than that of the bridge element is presented in this paper to investigate the spatial dynamic responses of a train-track-bridge interaction system. Formulation of stiffness and damping matrices for the fastener, ballast, and bearing
Lat. Am. j. solids struct.. Publicado em: 2016-12
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8. Comparison of Early Outcomes with Three Approaches for Combined Coronary Revascularization and Carotid Endarterectomy
Abstract Objective: This study aims to compare three different surgical approaches for combined coronary and carotid artery stenosis as a single stage procedure and to assess effect of operative strategy on mortality and neurological complications. Methods: This retrospective study involves 136 patients who had synchronous coronary artery revascularization
Braz. J. Cardiovasc. Surg.. Publicado em: 2016-10
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9. Effect of Open Crack on Vibration Behavior of a Fluid-Conveying Pipe Embedded in a Visco-Elastic Medium
Abstract In this paper vibration behavior of a fluid-conveying cracked pipe surrounded by a visco-elastic medium has been considered. During this work, the effect of an open crack parameters and flow velocity profile shape inside the pipe on natural frequency and critical flow velocity of the system has been analytically investigated. An explicit function fo
Lat. Am. j. solids struct.. Publicado em: 2016-01
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10. Electrical Conductivity and Chemical Composition of Soil Solution: Comparison of Solution Samplers in Tropical Soils
ABSTRACT Soil solution samplers may have the same working principle, but they differ in relation to chemical and physical characteristics, cost and handling, and these aspects exert influence on the chemical composition of the soil solution obtained. This study was carried out to evaluate, over time, the chemical composition of solutions extracted by Suolo A
Rev. Bras. Ciênc. Solo. Publicado em: 2016
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11. Buckling and Vibration of Functionally Graded Non-uniform Circular Plates Resting on Winkler Foundation
Abstract An investigation on the effect of uniform tensile in-plane force on the radially symmetric vibratory characteristics of functionally graded circular plates of linearly varying thickness along radial direction and resting on a Winkler foundation has been carried out on the basis of classical plate theory. The non-homogeneous mechanical properties of
Lat. Am. j. solids struct.. Publicado em: 2015-12
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12. An efficient analytical model to evaluate the first two local buckling modes of finite cracked plate under tension
Abstract The analytical approach is presented for both symmetric and anti-symmetric local buckling of the thin-plate in finite sizes and with a center crack under tension. An efficient classical solution based on the principle of minimum total potential energy was provided using only 2 and 1 degrees of freedom for symmetric and anti-symmetric modes and the l
Lat. Am. j. solids struct.. Publicado em: 2015-11