Route To Chaos
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. An approach to provide autonomy to distributed environments by predicting the dynamics of process behavior / Uma abordagem de predição da dinâmica comportamental de processos para prover autonomia a ambientes distribuídos
A evolução de sistemas distribuídos resultou em aumento significativo de complexidade para manutenção e gerenciamento, tornando pouco eficientes técnicas convencionais baseadas em intervenções manuais. Isso motivou pesquisas que deram origem ao paradigma de computação autônoma (Autonomic Computing), que provê aspectos de auto-configuração, auto
Publicado em: 2009
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2. The Feigenbaum's delta for a high dissipative bouncing ball model
We have studied a dissipative version of a one-dimensional Fermi accelerator model. The dynamics of the model is described in terms of a two-dimensional, nonlinear area-contracting map. The dissipation is introduced via inelastic collisions of the particle with the walls and we consider the dynamics in the regime of high dissipation. For such a regime, the m
Brazilian Journal of Physics. Publicado em: 2008-03
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3. Controle de caos em amostras semi-isolantes de arseneto de gálio
Low frequency current oscillations have been usually investigated under the influence of the external applied bias, the temperature and the illumination. A parallel applied magnetic field has been used in the present work in order to obtain odd periodic windows and bifurcations inside them in a two dimension parameter space in a semi-insulating GaAs grown by
Publicado em: 2008
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4. Comportamento complexo na formação de bolhas de ar em líquidos / Complex behaviour in air-liquid bubble formation
We have investigated the air bubble formation in viscous fluid with some control parameters. We have characterized the sistem using the air flow and the length of the hose that connects the air flow control system and the injector nozzle as control parameters. The hose corresponds to a system dissipative element. We have found period adding routes with and w
Publicado em: 2007
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5. Low frequency oscillations and bifurcation diagram in semi-insulating GaAs samples
We present an experimental study of bifurcation diagrams from low frequency current oscillations (LFO) measurements obtained from semi-insulating GaAs samples grown by low temperature molecular beam Epitaxy (LT-MBE). The considered growth temperatures were 215ºC and 265ºC. LFO are considered to be spontaneously generated oscillations under constant applied
Brazilian Journal of Physics. Publicado em: 2006-06
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6. Perturbing non-linear systems, an approach to the control of chaos. / Perturbando Sistemas Não-Lineares, uma Abordagem do Controle de Caos
Inicialmente, consideramos o mapa Logístico com os vários fenômenos nele presentes, para depois, ao perturbarmos esse mapa, adicionando periodicamente um termo de amplitude constante, identificarmos os novos fenômenos e as alterações que a introdução da perturbação faz aparecer. Apresentamos o circuito eletrônico de Matsumoto e, em seguida, o cons
Publicado em: 1996
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7. Quasiperiodicity route to chaos in a biochemical system.
The numerical study of a glycolytic model formed by a system of three delay differential equations reveals a quasiperiodicity route to chaos. When the delay changes in our biochemical system, we can observe the emergence of a strange attractor that replaces a previous torus. This behavior happens both under a constant input flux and when the frequency of the
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8. Spatiotemporal complexity of ventricular fibrillation revealed by tissue mass reduction in isolated swine right ventricle. Further evidence for the quasiperiodic route to chaos hypothesis.
We have presented evidence that ventricular fibrillation is deterministic chaos arising from quasiperiodicity. The purpose of this study was to determine whether the transition from chaos (ventricular fibrillation, VF) to periodicity (ventricular tachycardia) through quasiperiodicity could be produced by the progressive reduction of tissue mass. In isolated
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9. Symmetry in chemistry from the hydrogen atom to proteins
The last 2 decades have seen discoveries in highly excited states of atoms and molecules of phenomena that are qualitatively different from the “planetary” model of the atom, and the near-rigid model of molecules, characteristic of these systems in their low-energy states. A unified view is emerging in terms of approximate dynamical symmetry princip
The National Academy of Sciences of the USA.
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10. Nonrandom structures in the locomotor behavior of Halobacterium: a bifurcation route to chaos?
Halobacteria spontaneously reverse their swimming direction about every 10-15 s. They respond to light stimuli by a transient perturbation of this rhythm. During periodic stimulation the system shows features that are known from nonlinear oscillators. Increasing stimulation frequencies cause the following phenomena: (i) the frequency of reversals follows the