Residual And Local Influence
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Microstructure Evolution of the Mg-5.8 Zn-0.5 Zr-1.0 Yb Alloy During Homogenization
The influence of homogenization treatment on microstructure evolution of Mg-5.8Zn-0.5Zr-1.0Yb (mass fraction, %) alloy was investigated under different annealing temperatures and holding times. Results indicated a severe dendritic segregation in the as-cast ingot. Zn and Yb segregate remarkably at the grain boundary and Zr appears in the form of precipitates
Mat. Res.. Publicado em: 08/06/2017
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2. Emission of isoprene by eucalyptus and its influence in the formation of tropospheric ozone / Emissão de isopreno por plantações de eucalipto e sua influência na formação de ozônio troposférico
Este é o primeiro estudo de medida de compostos orgânicos voláteis leves (C$_2$-C$_6$) realizado em uma plantação comercial de eucalipto do Vale do Paraíba. As coletas foram efetuadas numa área pertencente à empresa Fibria, localizada na cidade de Caçapava. Com o objetivo principal de estudar a influência do isopreno na formação de ozônio tropos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/10/2011
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3. Bivariate response regression models with copulas: Sensitivity and residual analysis / Análise de sensibilidade e resíduos em modelos de regressão com respostas bivariadas por meio de cópulas
In this work bivariate response regression models are presented with the use of copulas. The objective of this approach is to model the correlation between events and capture the influence of this correlation in the regression parameters. The models are used in the context of survival analysis and are ¯tted to two data sets available in the literature. Infe
Publicado em: 2008
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4. Estudo dos parâmetros do decaimento do cloro residual em sistema de distribuição de água tratada considerando vazamento / Study of the residual decay parameters in water distribution systems with leakage
The use of chlorine as disinfectant in water supply systems has been a common practice adopted by the water industry. Introduced during the treatment process, chlorine participates in several reactions with compounds of organic and inorganic nature inside the pipes. Such reactions that occur in the bulk and the wall of the pipes are responsible for chlorine
Publicado em: 2008
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5. The generalized log-gama mixture model with covariates / Modelos de regressão log-gama generalizado com fração de cura
In this work the generalized log-gama model is modified for possibility that long-term survivors are present in the data . The models attempt to estimate separately the effects of covariates on the accelaration/decelaration of the timing of a given event and surviving fraction; that is, the proportion of the population for which the event never occurs. The l
Publicado em: 2007
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6. Study of the isoelectric precipitation of porcine insulin in aqueous solutions with carbon dioxide / Estudo da precipitação isoeletrica da insulina suina em soluções aquosas com o dioxido de carbono
Precipitation is a technique frequently employed in downstream process for the recovery of proteins from aqueous solutions. One example of such technique is the isoelectric precipitation, which consists of the adjustment of solution pH to the value where the protein has zero net charge, the isoelectric point, pI. Commonly, mineral acids and bases are used fo
Publicado em: 2007
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7. Análise numérica não-linear da flambagem local de perfis de aço estrutural submetidos à compressão uniaxial
Local buckling of plates normally presents large displacements in the normal direction of the medium plane of the plate due to small loading changes, with the axis of the bar remaining straight. This is a typical phenomenon of axially compressed steel columns, composed either with welded or hot- rolled structural shapes. When the plate buckles locally, there
Publicado em: 2006
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8. O relevo, elemento e âncora, na dinâmica da paisagem do vale, verde e cinza, do Acaraú, no estado do Ceará / O relevo, elemento e âncora, na dinâmica da paisagem do vale, verde e cinza, do Acaraú, no estado do Ceará
The present research aims at studying the hydrographic basin of Acaraú River, located in Ceará State. Its popularly known as Vale do Acaraú. The aforesaid area has as scenery, landscapes with several geomorphological traits, formed by the coast, sertaneja surface (inlands) and humid residual massifs.Performing a historical journey in Vale do Acaraú, the
Publicado em: 2006
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9. Diagnotics methods for linear mixed models. / Métodos de diagnóstico para modelos lineares mistos
Muitos fenômenos podem ser representados por meio de modelos estatísticos de forma satisfatória. Para validar tais modelos é necessário verificar se as suposições envolvidas estão satisfeitas e se o modelo é sensível a pequenas perturbações; este é o objetivo da análise de diagnóstico. Neste trabalho apresentamos, discutimos e propomos técnic
Publicado em: 2004
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10. Electronic structure of quantum wires by spatial charge distribution / Estrutura eletrônica de fios quânticos gerados por distribuição de carga espacial
In this work we investigate the electronic structure of space-charge quantum wires obtained via attachment of donors in misorientation steps of semiconductor vicinal surfaces. Recent experimental studies, combining epitaxial growth on GaAs (100) vicinal surfaces (terraces) with the ?-doping technique, suggests that the incorporation of Silicon donors is pref
Publicado em: 1997
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11. Studies on angiotensin II and analogs: impact of substitution in position 8 on conformation and activity.
Affinity, residual agonist activity, and inhibitor properties of a series of angiotensin II analogs modified at the COOH-terminal position (X8-substituted peptides) have been probed for structure/conformation-biological activity relationships. The results emphasize (i) the large impact that subtle conformational variations caused by structural alterations in
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12. The role of inactivation in the effects of n-alkanols on the sodium current of cultured rat sensory neurones.
1. The whole-cell patch-clamp technique has been used to investigate the actions of n-butanol, n-pentanol, n-hexanol and n-octanol on the sodium current of cells isolated from the dorsal root ganglia (DRGs) of neonatal rats and maintained in short-term tissue culture. 2. The influence of n-alkanols on the level of steady-state inactivation of the sodium curr