Non Linear Properties
Mostrando 25-36 de 223 artigos, teses e dissertações.
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25. Influencia del campo magnético estático en la turbidez de la cerveza de alta gravedad
Static magnetic field was applied to high gravity beer in three different stages of the process, from a multivariate D-optimal design for three factors (current, residence time and type of beer). The response variable turbidity, was determined by difference of absorbance at 580 nm. Linear model was obtained in the ranges tested relating the absorbance to the
Braz. J. Food Technol.. Publicado em: 2013-12
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26. Determinação do impacto do oversizing da endoprótese sobre a aorta torácica. Estudo experimental em porcos / Impact of stent-graft oversizing on the thoracic aorta: experimental study in a porcine model
Introduction: The use of endovascular techniques to treat the various disorders of the aorta has supplanted traditional open techniques, and is particularly promising in trauma1. The traumatic rupture of the aorta is the second leading cause of death by traffic accident2, 3, and repair of these lesions with endoluminal stents has showed lower mortality and p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/11/2012
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27. Estudo e geração de estados não clássicos em nanocircuitos: propriedades e aplicações / Study and generation of nonclassical states in nanocircuits: properties and aplications
In this work we used an arrangement consisting of Cooper pairs (Cooper Pair Box, CPB) interacting with a nanomechanical Resonator (NR) for various studies: to produce controlable holes in the statistical distribution of excitations of the NR, for resonant and non-resonant cases; to study the evolution of the entropy and the inversion of excitations, includin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2012
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28. Studies of optical, morphological and electrical properties of POMA/PMMA blends, using two different levels of doping with CSA
Poly(o-methoxyaniline) (POMA) was synthesized by oxidative polymerization of the monomer o-methoxyaniline. POMA/poly(methyl methacrylate) (PMMA) blends were produced by dissolving both polymers in chloroform (CHCl3).The amount of camphor sulfonic acid (CSA) used as dopant of POMA was different, providing two methods for preparation of the blends. Solutions w
Polímeros. Publicado em: 14/08/2012
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29. A procedure for the parametric identification of viscoelastic dampers accounting for preload
Passive vibration isolators are usually made of viscoelastic materials. These materials have non-linear characteristics that change their dynamical properties with temperature, frequency and strain level. The vibration isolator's mathematical modeling and optimal design require the prior knowledge of the stiffness and damping of the applied viscoelastic mate
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-06
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30. Dynamics of rotating non-linear thin-walled composite beams: analysis of modeling uncertainties
In this article a non-linear model for dynamic analysis of rotating thin-walled composite beams is introduced. The theory is deduced in the context of classic variational principles and the finite element method is employed to discretize and furnish a numerical approximation to the motion equations. The model considers shear flexibility as well as non-linear
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012
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31. Numerical solution of coupled mass and energy balances during osmotic microwave dehydration
The mass and energy transfer during osmotic microwave drying (OD-MWD) process was studied theoretically by modeling and numerical simulation. With the aim to describe the transport phenomena that occurs during the combined dehydration process, the mass and energy microscopic balances were solved. An osmotic-diffusional model was used for osmotic dehydration
Comput. Appl. Math.. Publicado em: 2012
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32. O EMPREENDEDORISMO EM UMA CADEIA PRODUTIVA DE LEITE: DESENVOLVIMENTO DE UMA MEDIDA / ENTREPRENEURSHIP IN RURAL AREA: A STUDY IN THE CONTEXT OF A CHAIN OF DAIRY PRODUCTION
The central objective of this doctorate thesis is establish inferences about possible correlations between entrepreneurial characteristics of rural properties managers which are inserted in the context of a dairy supply chain and its respective rural properties performance, taking as reference an measure proposed evaluation (structured) and validated for thi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011
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33. A Procedure for the Parametric Identification of Viscoelastic Dampers Accounting for Preload
Passive vibration isolators are usually made of viscoelastic materials. These materials have non-linear characteristics that change their dynamical properties with temperature, frequency and strain level. The vibration isolator’s mathematical modeling and optimal design requires the prior knowledge of the stiffness and damping of the applied viscoelastic m
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-09
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34. Thermal effect on free vibration analysis of functionally graded arbitrary straight-sided plates with different cutouts
In this paper, free vibration of functionally graded nonuniform straight-sided plates with circular and non-circular cutouts has been investigated. Moreover, thermal effects on free vibration analysis and the effects of various parameters on natural frequencies of these plates were evaluated. The material properties were assumed to be graded across thickness
Latin American Journal of Solids and Structures. Publicado em: 2011-09
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35. A comparative evaluation of endemic and non-endemic region of visceral leishmaniasis (Kala-azar) in India with ground survey and space technology
In visceral leishmaniasis, phlebotomine vectors are targets for control measures. Understanding the ecosystem of the vectors is a prerequisite for creating these control measures. This study endeavours to delineate the suitable locations of Phlebotomus argentipes with relation to environmental characteristics between endemic and non-endemic districts in Indi
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-08
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36. Process analysis and optimization mapping through design of experiments and its application to a polymerization process
The technique of experimental design is used on an ethylene polymerization process model in order to map the feasible optimal region as preliminary information for process optimization. Through the use of this statistical tool, together with a detailed deterministic model validated with industrial data, it is possible to identify the most relevant variables
Brazilian Journal of Chemical Engineering. Publicado em: 2011-03