Coupled Map Lattices
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. MÚLTIPLAS ESCALAS EM INTERAÇÕES PRESA-PREDADOR
The main purpose of this dissertation was to analyze the occurrence of two time scales in predator-prey systems. Initially, we proposed two discrete models without spatial structure. The first model considers fast vital dynamics for the prey and slow dynamics for the predator. The second one proposes the reproduction of the predator in a faster time scale th
Publicado em: 2010
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2. ANALISE DA DINAMICA DE PARTICULAS BROWNIANAS INTERAGENTES A PARTIR DE REDES DE MAPAS ACOPLADOS
The Brownian motion is one important topic of the non-equilibrium statistical mechanics and it is related to many natural phenomena. The first observations and theories on this motion were essential for understand the microscopic behavior of the nature and its influence on macroscopics observables. In this dissertation, we studied the dynamics of a system co
Publicado em: 2009
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3. Segmentação e detecção de simetria em imagens via redes de mapas acoplados. / Image segmentation and symmetry detection via coupled map lattices.
Synchronism is a dynamical behavior that can be found in the neural activity of cortical structures, and this behavior seems to be fundamental in learning, understanding and recognition processes. Cortical structures can be modeled by using coupled map lattices. In such lattices, the existence of synchronous solution is determined by the equation that rules
Publicado em: 2007
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4. Coupled maps and applications: image processing, self-organization and symbolic programming. / Mapas acoplados e aplicações: processamento de imagens, auto-organização e processamento simbólico.
We investigated some computational abilities of systems composed by coupled maps. Here, we explored the use of those systems in dealing with three problems: the identification of reflection symmetry in bidimensional images; the appearing of clusters of synchronous elements in networks with small-worlds topologies; and in constructing figures obeying a compos
Publicado em: 2004
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5. Projection structure of frog rhodopsin in two crystal forms.
Rhodopsin is the G protein-coupled receptor that upon light activation triggers the visual transduction cascade. Rod cell outer segment disc membranes were isolated from dark-adapted frog retinas and were extracted with Tween detergents to obtain two-dimensional rhodopsin crystals for electron crystallography. When Tween 80 was used, tubular structures with