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oai:recercat.cat:2445/189132025-12-04T20:54:03Zcom_2072_1057col_2072_478796col_2072_478917

urn:hdl:2445/18913 Unidirectional mechanism for reentrant activity generation in excitable media Sendiña Nadal, Irene Castro, Maite de Sagués i Mestre, Francesc Gómez-Gesteira, Moncho Física estadística Termodinàmica Química física Dinàmica de fluids Statistical physics Thermodynamics Physical chemistry Fluid dynamics A closed excitable pathway with one point-to-point connection is used to generate a rotating wave both in experiments using the photosensitive Belousov-Zhabotinsky system and numerically with an Oregonator reaction-diffusion model. By varying the excitability and geometrical properties of the medium, propagation can be made unidirectional or bidirectional, giving rise, respectively, to the existence or not of sustained reentrant activity in a closed excitable track. 2011-07-07T12:55:15Z 2011-07-07T12:55:15Z 2002 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.66.016215 Physical Review E, 2002, vol. 66, núm. 1, p. 016215-1-016215-5 http://dx.doi.org/10.1103/PhysRevE.66.016215 (c) American Physical Society, 2002 info:eu-repo/semantics/openAccess The American Physical Society Articles publicats en revistes (Ciència dels Materials i Química Física)