Mesoscopic Approach
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Gradientes de orientación en cercanías del borde de grano estudiados por EBSD
ABSTRACT The goal of this study is the evaluation of local misorientation, its distribution and orientation gradient in the microstructural development of a deep drawing quality steel sheet (AKDQ). The microstructure is characterized at sub-grain level spatial resolution using Electron Backscatter Diffraction (EBSD) in samples submitted to interrupted uniaxi
Matéria (Rio J.). Publicado em: 19/07/2018
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2. Nonadditive entropy and nonextensive statistical mechanics -an overview after 20 years
Statistical mechanics constitutes one of the pillars of contemporary physics. Recognized as such - together with mechanics (classical, quantum, relativistic), electromagnetism and thermodynamics -, it is one of the mandatory theories studied at virtually all the intermediate-and advanced-level courses of physics around the world. As it normally happens with
Brazilian Journal of Physics. Publicado em: 2009-08
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3. Ruido no transporte eletronico em sistemas mesoscopicos / Noise in the electronic transport in mesoscopic systems
This dissertation describes the fundamental caracteristics of mesoscopic conductors, and the origins and properties of the sources of noise in conductors. Firstly, we describe the noise through different methods and emphasize the properties of each kind of noise. In the following, we present the scattering approach for coherent phase conductors, which allows
Publicado em: 2009
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4. Redes de fusíveis livres de escala para simulação de fratura em materiais compósitos
The study of fracture of composite materials has a distinguished relevance due the broad and ever increasing use of multiphase materials to attend specific needs and/or combine cost and functionality. Theoretical approach to the issue include simplified models, yet many times mathematically unfeasible, providing information of little practical use. As an alt
Publicado em: 2007
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5. Estimativa do limite de fadiga sob condições de fretting considerando o método da distância crítica do ponto em uma abordagem por elementos finitos
The goal of this work is to evaluate the fatigue limit of components under fretting conditions through a methodology usually applicated to notched componentes. The proposed methodology is based on the application of multiaxial models proposed by Dang Van and Susmel and Lazzarin (Method of Wohler Curve Modified) in terms of the Theory of Critical Distance by
Publicado em: 2006
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6. The application of a mesoscopic scale approach in fretting fatigue
This work concerns the application of a mesoscopic scale fatigue criterion to predict the initiation of cracks in components under fretting conditions. A verification of the analysis is carried out by considering available experimental data for fretting fatigue in a high strength Aluminium alloy commonly used in the aerospace industry. These experiments reve
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-03
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7. Litoestratigrafia e deformação cenzóica na região de Icapuí, Ceará, e implicações para a estruturação de campos de petróleo na borda ocidental da bacia Potiguar(NE do Brasil)
This thesis deals with the sedimentological/stratigraphic and structural evolution of the sedimentary rocks that occur in the NW continental border of the Potiguar Basin. These rocks are well exposed along coastal cliffs between the localities of Lagoa do Mato and Icapuí, Ceará State (NE Brazil). The sedimentological/stratigraphic study involved, at the ou
Publicado em: 2003
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8. Dispositivos optoeletronicos para o infravermelho termal
The IV-VI materiais semiconducting devices are important due to their several applications in the thermal infrared spectral region (5 mm £ l £ 14 mm). Radiation detectors as well as semiconductor lasers made out with those compounds have several uses, ranging from satellite s attitude control to high resolution spectroscopy. Among the important materiais o
Publicado em: 1994
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9. Shape transitions of fluid vesicles and red blood cells in capillary flows
The dynamics of fluid vesicles and red blood cells (RBCs) in cylindrical capillary flow is studied by using a three-dimensional mesoscopic simulation approach. As flow velocity increases, a model RBC is found to transit from a nonaxisymmetric discocyteto an axisymmetric parachute shape (coaxial with the flow axis), while a fluid vesicle is found to transit f
National Academy of Sciences.