Lattice Models
Mostrando 1-12 de 118 artigos, teses e dissertações.
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1. X-ray line profile analysis and magnetic and optical properties of FexZn0.95-xCr0.05O nanoparticles fabricated by sol-gel route
Abstract FexZn0.95-xCr0.05O nanoparticles have been obtained for the different concentrations of Fe ions by using the sol-gel method. The hexagonal wurtzite structure of all the samples was confirmed by Rietveld refined X-ray diffraction patterns. The addition of Fe ions decreased lattice constants a and c from 3.2487 to 3.2474 Å and 5.2043 to 5.2029 Å, re
Cerâmica. Publicado em: 2022
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2. Optimization of banana bar formulation to provide a nourishing snack for toddlers using response surface methodology
Abstract The development of banana-based snack bars that fulfill the nutritional requirement for toddlers is required. In this study, we analyzed the effects of different concentrations of banana puree, banana flour and potato starch on the characteristics of inulin, dietary fiber, protein, and potassium as well as the hardness of banana bars using response
Food Sci. Technol. Publicado em: 2021-06
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3. A direct technique for the homogenization of periodic beam-like structures by transfer matrix eigen-analysis
Abstract To homogenize lattice beam-like structures, a direct approach based on the matrix eigen- and principal vectors of the state transfer matrix is proposed and discussed. The Timoshenko couple-stress beam is the equivalent continuum medium adopted in the homogenization process. The girders unit cell transmits two kinds of bending moments: the first is g
Lat. Am. j. solids struct.. Publicado em: 10/07/2018
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4. Optimization of polyphenols and acceptability of jelly candies with ginger ( Zingiber officinale R.) extract and honey with Mixture Design
Abstract The objective of this work was to optimize total polyphenols content, firmness, sweetness and general acceptability of jelly candies developed with ginger extract and six proportions of sucrose, honey and glucose. To study the effect of proportions, the Simplex Lattice Mixture Design was used. The design was replicated for four levels of ginger ext
Braz. J. Food Technol.. Publicado em: 17/05/2018
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5. RELATIONSHIP BETWEEN SAMPLE DESIGN AND GEOMETRIC ANISOTROPY IN THE PREPARATION OF THEMATIC MAPS OF CHEMICAL SOIL ATTRIBUTES
ABSTRACT Spatial variability depends on the sampling configuration and characteristics associated with the georeferenced phenomenon, such as geometric anisotropy. This study aimed to determine the influence of the sampling design on parameter estimation in an anisotropic geostatistical model and the spatial estimation of a georeferenced variable at unsampled
Eng. Agríc.. Publicado em: 2018-04
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6. Experimental and numerical investigation of lattice-walled cylindrical shell under low axial impact velocities
Abstract This research was an experimental and numerical investigation of the cylindrical expanded Sheets under impact loading. Two types of absorbers with different cell angles were examined (i.e. α = 0 and α = 90). The experiments were performed using the drop hammer setup, and the numerical simulations were conducted by ABAQUS. In this study, the type o
Lat. Am. j. solids struct.. Publicado em: 2015-10
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7. Crystallographic Aspects Regarding the Insertion of Ag+ Ions into a Hydroxyapatite Structure
The objective of this study was to evaluate how silver can be inserted into hydroxyapatite (HA) via two distinct processes: co-doping with CO32- via precipitation in an aqueous medium and immersion of preformed HA crystals into Ag+ solutions. It was concluded that although Ag+ and Ca2+ have different radii, the accommodation of Ag+ ions in the Ca2+ sites of
Mat. Res.. Publicado em: 2015-08
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8. A equação de Yang-Baxter para modelos de vértices com três estados
Nesta dissertação estudamos as possíveis soluções da equação de Yang-Baxter para modelos de dezenove vértices invariantes por simetria de paridade e reversão temporal do ponto de vista da geometria algébrica. Determinamos a forma das curvas algébricas que vinculam os respectivos pesos de Boltzmann e descobrimos que suas estruturas são universais.
Publicado em: 2011
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9. Nonlinear optimum model following control of flexible aircraft.
This Doctorate Thesis concerns optimum control of flexible aircraft. Models of a conceptual flexible aircraft are developed for control applications. A general model following problem via output feedback is developed and applied to the conceptual aircraft. The models are determined for 3 aircraft variants with increasing flexibility. The aerodynamics of flex
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2010
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10. Método Criptográco Baseado em Autômatos Celulares Bidimensionais para Cifragem de Imagens
This work proposes a new symmetric-key cryptographical model based on von Neumann two-dimensional, heterogeneous and non-additive cellular automata. The encryption process is performed by calculating consecutive pre-images and decryption process by the forward evolution of cellular automata. The proposed model was based on earlier work which used one-dimensi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2010
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11. Modelos modificados de redes neurais morfológicas / Modified models of morphological neural networks
Morphological neural networks (MNN) are artificial neural networks whose hidden neurons perform elementary operations of mathematical morphology (MM). Several particular models of MNNs have been proposed in recent years, including morphological perceptrons (MPs), morphological perceptrons with dendrites, (fuzzy) morphological associative memories, modular mo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2010
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12. Magnetocaloric and barocaloric effects in Mn[As(1-x) Sb(x)] e La[Fe(x) Si(1-x)]13 / Efeitos magnetocalórico e barocalórico em Mn[As(1-x) Sb(x)] e La[Fe(x) Si(1-x)]13
Recent experimental data revealed that the compounds La[Fe(x)Si(1-x)]13 and Mn[As(1-x)Sb(x)], present great values for the isothermal entropy change and the adiabatic temperature change. They also showed that the magnetocaloric effect in these compounds can be easily tuned through doping and external pressure. Therefore, such experimental data, which need a
Publicado em: 2010