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Spatiotemporal Patterns in Ultraslow Domain Wall Creep Dynamics
(American Physical Society, 2017-04)
In the presence of impurities, ferromagnetic and ferroelectric domain walls slide only above a finite external field. Close to this depinning threshold, they proceed by large and abrupt jumps called avalanches, while, at ...
Measurement of elastic properties of materials by the ultrasonic through-transmission technique
(Universidad Nacional de Colombia Sede Medellin, 2011-07)
El comportamiento mecánico de los materiales elásticos es modelado por medio de dos constantes independientes: el módulo de elasticidad y el coeficiente de Poisson. La medición precisa de estas constantes es indispensable ...
Study of an anisotropic polymeric cellular material under compression loading
(ABM, ABC, ABPol, 2012)
This paper emphasizes the influence of micro mechanisms of failure of a cellular material on its phenomenological response. Most of the applications of cellular materials comprise a compression loading. Thus, the study ...
A posteriori registration and subtraction of periapical radiographs for the evaluation of external apical root resorption after orthodontic treatment
(Korean Acad Oral & Maxillofacial Radiology, 2016-03-01)
Purposes: This study employed a posteriori registration and subtraction of radiographic images to quantify the apical root resorption in maxillary permanent central incisors after orthodontic treatment, and assessed whether ...
Laguerre-gauss filters in reverse time migration image reconstruction
(Sociedade Brasileira de Geofisica, 2017-01-01)
Reverse time migration (RTM) solves the acoustic or elastic wave equation by means of the extrapolation from source and receiver wavefield in time. A migrated image is obtained by applying a criteria known as imaging ...
Estudo da fissuração de concretos refratários durante o processo de cura auxiliado pela técnica de correlação de imagens digitais
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2015-12-23)
The growing demand of the steel industry for cheaper and more efficient production
processes creates a necessity for new refractory materials. These requirements
are written in terms of more robust concretes, with a ...