1,516 research outputs found
Sufficient condition for Gaussian departure in turbulence
No full textThe interaction of two isotropic turbulent fields of equal integral scale but different kinetic energy generates the simplest kind of inhomogeneous turbulent field. In this paper we present a numerical experiment where two time decaying isotropic fields of kinetic energies E1 and E2 initially match over a narrow region. Within this region the kinetic energy varies as a hyperbolic tangent. The following temporal evolution produces a shearless mixing. The anisotropy and intermittency of velocity and velocity derivative statistics is observed. In particular the asymptotic behavior in time and as a function of the energy ratio E1 / E2 → infinity is discussed. This limit corresponds to the maximum observable turbulent energy gradient for a given E1 and is obtained through the limit E2 → 0. A field with E1 / E2 → infinity represents a mixing which could be observed near a surface subject to a very small velocity gradient separating two turbulent fields, one of which is nearly quiescent. In this condition the turbulent penetration is maximum and reaches a value equal to 1.2 times the nominal mixing layer width. The experiment shows that the presence of a turbulent energy gradient is sufficient for the appearance of intermittency and that during the mixing process the pressure transport is not negligible with respect to the turbulent velocity transport. These findings may open the way to the hypothesis that the presence of a gradient of turbulent energy is the minimal requirement for Gaussian departure in turbulence
Orbital cellulitis, sinusitis and intracranial abnormality in two adolescents with COVID-19
No full textRetrospective review of two adolescent cases suggests bacterial orbital cellulitis with sinusitis and COVID-19 may have radiographic signal consistent with hemorrhagic or thrombotic phenomena, retro-maxillary antral fat changes, or meningeal extension, thereby mimicking fungal infection.This article is free through Taylor-Francis as part of the ongoing effort against COVID-19
A strategy for corporate social responsibility : the case of the withdrawal from South Africa by Barclays Bank
No full textCranfield School of Managemen
A interação texto/imagem em duas traduções de Flicts para o inglês
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Estudos da Tradução, Florianópolis, 2013.Abstract : This study aims to investigate two translations of FLICTS, first children's book written by Ziraldo and first full-colored album for children produced in Brazil, with a view to discussing the different interactions between text and image that might occur within the translation of children's literature. Considered a landmark in Brazilian Children's Literature since its launch in 1969, its British version was translated by Silvia Caruana and published by the publishing house Roger Schlesinger in 1973 and its American English version was translated by Daniela Pinto, originally published by Melbooks in 1984 - subsequently also published by Editora Melhoramentos and commercialized in Brazil. The theoretical framework informing the study is based on the interface of Descriptive Translation Studies, Translation of Children's Literature and the Grammar of Visual Design. By the analyses of a multimodal corpus and a dossier about the history of this printed book, it was possible to note that the several changes along FLICTS publishing history have made up other possible readings on this work
- …
