Continuum Dynamics
Mostrando 1-12 de 49 artigos, teses e dissertações.
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1. INSIGHT INTO THE CONFORMATIONAL SPACE OF N-BENZYL-N-(FURAN-2-YLMETHYL)ACETAMIDE BY NMR SPECTROSCOPY AND DFT CALCULATIONS
In this study, the conformational behavior of N-benzyl-N-(furan-2-ylmethyl) acetamide in chloroform was addressed by using a combined experimental/theoretical strategy using NMR spectroscopy and quantum chemical calculations. The 1H and 13C one-dimensional NMR spectra, as well as the two-dimensional HSQC-DEPT and HMBC-DEPT NMR spectra, evinced the presence o
Quím. Nova. Publicado em: 2021-01
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2. O tonto e o louco. Notas sobre a cena cultural contemporânea
RESUMO Em seu livro Cultura e explosão, no qual analisa a dinâmica cultural, Lotman utiliza as figuras do “tonto” e do “louco” como termos paradigmáticos de atitudes humanas que encarnam as formas de mudança social. Imersos no espaço de uma semiosfera, os atos humanos ganham significado em relação à totalidade desse universo. O autor propõe
Bakhtiniana, Rev. Estud. Discurso. Publicado em: 14/11/2019
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3. Calcium and Magnesium Released from Residues in an Integrated Crop-Livestock System under Different Grazing Intensities
ABSTRACT Under integrated crop-livestock production systems (ICLS), plant and animal residues are important nutrient stocks for plant growth. Grazing management, by affecting the numbers of both plants and animals and the quality of residues, will influence nutrient release rates. The objective of this study was to evaluate the impact of grazing intensity on
Rev. Bras. Ciênc. Solo. Publicado em: 27/04/2017
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4. Verification and validation in CFD for a free-surface gas-liquid flow in channels
This work deals with experimental and numerical studies of a 3-D transient free-surface two-phase flow in a bench-scale channel flow. The aim was to determine how well the homogeneous model can predict the fluid dynamics behavior and to validate the model. The model was validated with experimental data acquired for two hydrodynamic situations. The mathematic
Braz. J. Chem. Eng.. Publicado em: 2013-06
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5. Um modelo hÃbrido para simulaÃÃo de multidÃo com comportamentos variados em tempo real / A hybrid model for simulating crowds with different behaviors in real time
Simular uma multidÃo à uma tarefa custosa computacionalmente, onde hà a necessidade de reproduzir o comportamento de vÃrios (dezenas a milhares) agentes realisticamente em um ambiente bidimensional ou tridimensional. Os agentes precisam interagir entre si e com o ambiente, reagindo a situaÃÃes, alternando comportamentos e/ou aprendendo novos comportame
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/03/2011
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6. Propriedades dinâmicas de fluidos por simulação computacional: métodos híbridos atomístico-contínuo
Computational methods for the calculation of dynamical properties of fluids might consider the system as a continuum or as an assembly of molecules. Molecular dynamics (MD) simulation includes molecular resolution, whereas computational fluid dynamics (CFD) considers the fluid as a continuum. This work provides a review of hybrid methods MD/CFD recently prop
Química Nova. Publicado em: 2010
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7. Dinâmica populacional e efeitos de variáveis ambientais sobre a fauna de pequenos mamíferos em um fragmento de floresta com araucária no sul do Brasil
Natural populations of small rodents fluctuate continually over time and the population dynamics of any living organism are shaped by both intrinsic and extrinsic factors. Small mammals populations can show a continuum dynamic activity, ranging from stability to regular cycles of variable amplitude. The species dynamics is also known to be influenced by the
Publicado em: 2010
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8. Mecânica de suspensões magnéticas diluídas
This work concerns with an investigation of the dynamics of dilute suspensions composed by magnetic particles, considering microstructural and macroscopic aspects of this particulate systems. From the microstructure, it is known that magnetostatic attraction may lead to formation of aggregates in magnetic suspensions. In this way, numerical simulations have
Publicado em: 2009
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9. Teorema Central do Limite para o modelo O(N) de Heisenberg hierárquico na criticalidade e o papel do limite N ->infinito na dinâmica dos zeros de Lee-Yang / Central Limit Theorem for the hierarchical O(N) Heisenberg model at criticality and the role of the N ->infinity limit for the Lee-Yang zeros´s dynamics
In this work we stablish the Central Limit Theorem for the hierarchical O(N) Heisenberg model at criticality via partial differential equation in the limit N ->infinity. For simplicity we only treat the d = 4 case but the theorem is still valid for d >4. By studying a given partial differential equation (PDE) we determine for any d >2 the critical inverse te
Publicado em: 2008
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10. Numerical solutions to a cloth model based on the Cosserat surface / Soluções numericas em um modelo de tecidos baseado na superficie de Cosserat
Currently, physics-based models are frequently used for cloth simulations. There are basically two approaches: particle mechanics and continuum mechanics. The particle mechanics is at the present time the most widely used method, having some advantages like an easy formulation and a high performance. The continuum mechanics is regarded as being a more precis
Publicado em: 2008
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11. FINITE ELEMENTS WITH SPLINE FUNCTIONS APPLIED TO STRUCTURAL DYNAMICS AND INSTABILITY / ELEMENTOS FINITOS COM FUNÇÕES SPLINE PARA INSTABILIDADE E DINÂMICA DE ESTRUTURAS
The present work presents a subparametric finite element model with spline displacement functions, implemented for static, dynamic and instability analysis of folded plates, thin-walled beams, box girders, and elongated structures such as bridges and structural shapes. A drilling degree of freedom (rotation about an axis perpendicular to the plane of the ele
Publicado em: 2008
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12. Distribution and diversity of leaf litter ants (Hymenoptera: Formicidae) along an elevational gradient in the Parque Estadual da Serra do Mar - Núcleo Picinguaba, São Paulo, Brazil / Distribuição e diversidade de formigas de serapilheira (Hymenoptera: Formicidae) ao longo de um gradiente elevacional no Parque Estadual da Serra do Mar-Núcleo Picinguaba, São Paulo, Brasil
Aiming to investigate the influence of the elevation in topography on the myrmecological leaf litter fauna and to verify if there is a richness pattern for the investigated gradient, I studied the distribution of these ants along an elevational gradient in the Núcleo Picinguaba of the Serra do Mar State Park, Ubatuba, SP. For this, I adopted six elevational
Publicado em: 2008