Irreversibility
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. SIMULATION OF THERMAL DECOMPOSITION IN AN OPEN CAVITY: ENTROPY ANALYSIS
ABSTRACT This paper presents a numerical analysis of entropy generation in a two-dimensional rectangular channel where the inlet flow undergoes thermal decomposition resulting from a chemical reaction. The model considered viscosity and thermal conductivity to be dependent of temperature. Irreversibility due to mass transport was included in the entropy gene
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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2. The nursing actions before the right to worthy death of the hospitalized child
RESUMO Objetivos: Descrever as ações de enfermagem frente ao direito à morte digna da criança; analisar as (im)possibilidades para promoção da morte digna da criança hospitalizada. Método: Qualitativo baseado no conceito de morte digna, com 16 membros da equipe de enfermagem atuantes em uma Unidade de Internação Pediátrica, através da Entrevist
Esc. Anna Nery. Publicado em: 04/07/2019
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3. Historia natural y temporalización: consideraciones sobre la Historia natural de Buffon
This article presents a rereading of Buffon's Natural History in the light of the concepts of temporal reversibility and irreversibility. The goal is to determine to what extent Buffon introduces a transformationist concept of natural forms in this work. To that effect, the main points of classical natural history and the doctrine of preformed germs are anal
Hist. cienc. saude-Manguinhos. Publicado em: 2013-09
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4. APPLICATION OF NANOFLUIDS IN SECONDARY REFRIGERATION SYSTEMS / APLICAÇÃO DE NANOFLUIDOS EM SISTEMAS SECUNDÁRIOS DE REFRIGERAÇÃO
The application of nanofluids as secondary fluids in vapor compression refrigeration systems is studied with the development of a lumped-parameter thermodynamic model. When a nanofluid is used as a heat transfer fluid, its thermal conductivity and viscosity increase, when compared with the corresponding properties of the base fluid. The irreversibilities due
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2012
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5. O tempo como antagonista na obra Somewhere in Time, de Richard Matheson
The novel Somewhere in Time (1975), by the American author Richard Matheson, presents time as the most relevant element in the elaboration of this novel which ranges between Fantasy and Science Fiction. Time appears in the novel through many perspectives not only as part of the narrative structure, as a character, but also connected to a musical element, mor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/01/2012
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6. Human thermal comfort: an irreversibility-based approach emulating empirical clothed-body correlations and the conceptual energy balance equation
Exergetic analysis can provide useful information as it enables the identification of irreversible phenomena bringing about entropy generation and, therefore, exergy losses (also referred to as irreversibilities). As far as human thermal comfort is concerned, irreversibilities can be evaluated based on parameters related to both the occupant and his surround
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-12
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7. Second law analysis for free convection in non-newtonian fluids over a horizontal plate embedded in a porous medium: (prescribed heat flux)
Second law characteristics of heat transfer and fluid flow due to free convection of non-Newtonian fluids over a horizontal plate with prescribed surface heat flux in a porous medium are analyzed. Velocity and temperature fields are obtained numerically using an implicit finite difference method under the similarity assumption and these results are used to c
Braz. J. Chem. Eng.. Publicado em: 2012-09
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8. A Relação homem-natureza, a fenomenologia do cuidar e a dimensão formativa / The Man-nature relationship, and phenomenology of care and formative dimension
This is a theoretical study devoted to reconstructing conceptions of nature-care-ethics theme, in an expository approach of Martin Heidegger (2002) ideas, in conversation with Hans Jonas (2004-2006), aiming, in the future, to subsidize the philosophical foundations an environmental education methodology. The research method was the phenomenological hermeneut
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2011
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9. A Relação homem-natureza, a fenomenologia do cuidar e a dimensão formativa / The Man-nature relationship, and phenomenology of care and formative dimension
This is a theoretical study devoted to reconstructing conceptions of nature-care-ethics theme, in an expository approach of Martin Heidegger (2002) ideas, in conversation with Hans Jonas (2004-2006), aiming, in the future, to subsidize the philosophical foundations an environmental education methodology. The research method was the phenomenological hermeneut
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2011
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10. Obtenção e caracterização de supercondutores de Bi2212 texturizados com introdução de centros artificiais de aprisionamento / Production and characterization of textured Bi2212 superconductors with introduction of artificial pinning centers.
The present work analyzed the texturing conditions of Ag/Bi2212 samples (Bi2Sr2CaCu2O8+δ) in the form of bulks and of tapes, verifying the influence of heat treatment, atmosphere, silver addition and addition of zirconia or calcium zirconate. The additions of zirconia or calcium zirconate, with particles of submicron or nanometric (below 200nm) dimensio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/09/2010
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11. Decisões éticas na terminalidade da vida : conhecimentos e condutas de médicos intensivistas de goiás e distrito federal
Nowadays, death mainly occurs in hospitals, at Intensive Care Units (ICUs). Care delivery in the terminality of life can represent an extremely complex situation for physicians, mainly for those working in intensive care. In the attempt to solve these dilemmas, the Federal Medicine Council issued Resolution 1.805/2006, about the legalization of orthotanasia;
Publicado em: 2010
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12. Second-law analysis of laminar nonnewtonian gravity-driven liquid film along an inclined heated plate with viscous dissipation effect
A second-law analysis of a gravity-driven film of non-Newtonian fluid along an inclined heated plate is investigated. The flow is assumed to be steady, laminar and fully-developed. The upper surface of the liquid film is considered to be free and adiabatic. The effect of heat generation by viscous dissipation is included. Velocity, temperature and entropy ge
Brazilian Journal of Chemical Engineering. Publicado em: 2009-06