Implicit Surfaces
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Técnica de realidade virtual para manipulação e deformação de superfícies NURBS
The Virtual Reality (VR) mainly deals with the creation of three-dimensional environments generated in real time and made available for multisensory interaction with different devices. A high processing capacity and modeling environments is required for applications of this nature. These applications currently extend to various productive sectors such as ind
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2012
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2. Métodos com passo temporal adaptativo para a simulação de escoamentos com superfícies livres / Adaptative time-step methods for the simulation of free surface flows
The simulation of free surfaces flows has gained importance in the recent years due to the many practical applications of this type of flow. Among the many numerical methods available for the simulation of fluid flows, there is GENSMAC, which is a numerical technique to simulate Newtonian flows with free surfaces. The implementation of semi-implicitmethods f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2012
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3. NUMERICAL ANALYSIS OF THE FLOW OF EMULSION THROUGH STRAIGHT AND CONSTRICTED CAPILLARIES / ANÁLISE NUMÉRICA DO ESCOAMENTO DE EMULSÕES ATRAVÉS DE CAPILARES RETOS E CAPILARES COM GARGANTA
Emulsion can be used as a mobility control agent in enhanced oil recovery methods in order to achieve a more efficient sweep of the reservoir. The application of such technique requires full understanding of how emulsions flow in a porous material. The macroscopic flow behavior can be determined based on the pore scale flow, at which emulsions cannot be trea
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/09/2011
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4. CALCULUS OF AFFINE STRUCTURES AND APPLICATIONS FOR ISOSURFACES / CÁLCULO DE ESTRUTURAS AFINS E APLICAÇÃO ÀS ISOSSUPERFÍCIES
Differential Geometry provides a set of measures invariant under a set of transformations, in particular rigid, affine, and projective. The invariants by rigid motions are using almost all applications of computer graphics and geometric modeling. The affine case, since it is more general, allows to extend these tools. In this work, geometric properties are p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2011
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5. Aproximação isotópica suave de curvas e superfícies implícitas. / Smooth isotopic approximation of implicit curves and surfaces
Esta dissertação contém um estudo a respeito de curvas planas e superfícies. São vistas as duas formas mais usuais de se definirem estes elementos: a definição paramétrica e a implícita, com ênfase nesta última. São analisadas algumas formas de representação de curvas planas e superfícies, o que vem a ser uma tarefa relativamente simples ao se
Publicado em: 2008
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6. Reconstrução de superfície a partir de um conjunto não-organizado de pontos
Surface reconstruction is the area dedicated to get complex geometric models from a finite set of unorganized points of object surfaces. This area has become increasingly important in Geometric Modeling and other applications such as Computer Graphics, Computer Vision, Virtual Reality and Engineering. This Master thesis describes a broad survey of the main r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/10/2005
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7. Aesthetics, semiotics, and pragmatism -Basis to a Peircean philosophy of art. / Estética, pragmatismo &Semiótica: Bases para uma filosofia da arte peirceana
This thesis is a reflection about the work of art, found mainly in Charles Sanders Peirces Phenomenology, Semiotics, Aesthetics, and Pragmatism. In the following three chapters we will try to show evidence of an implicit Philosophy of Art in the authors vast work. First, in Phenomenology of Art, the problem of the nature of artwork surfaces through a discuss
Publicado em: 2005
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8. Modelagem geologica orientada a objetos e simulação estocastica da geometria de reservatorios fluviais
In this work. an object based method for geological modeling named Stochastic Modeling ar Geometric Objects is proposed. to simulate the geometry and the architecture of fluvial reservoirs in a case study. Fluvial reservoirs are formed by channel fill deposits. which are the basic unit of the reservoir. The object channel is represented in cross-section by t
Publicado em: 1996
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9. Enhancing the Activity of a Protein by Stereospecific Unfolding: CONFORMATIONAL LIFE CYCLE OF INSULIN AND ITS EVOLUTIONARY ORIGINS*S⃞♦
A central tenet of molecular biology holds that the function of a protein is mediated by its structure. An inactive ground-state conformation may nonetheless be enjoined by the interplay of competing biological constraints. A model is provided by insulin, well characterized at atomic resolution by x-ray crystallography. Here, we demonstrate that the acti
American Society for Biochemistry and Molecular Biology.
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10. Novel Approach to Characterization of Combined Pharmacodynamic Effects of Antimicrobial Agents
There is considerable need for new modeling approaches in the study of combined antimicrobial effects. Current methods based on the Loewe additivity and Bliss independence models are associated with implicit assumptions about the interacting system. To circumvent these limitations, we propose an alternative approach to the quantification of pharmacodynamic d
American Society for Microbiology.