Sendiña Nadal, IreneCastro, Maite deSagués i Mestre, FrancescGómez-Gesteira, Moncho2011-07-072011-07-0720021063-651Xhttps://hdl.handle.net/2445/18913A 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.5 p.application/pdfeng(c) American Physical Society, 2002Física estadísticaTermodinàmicaQuímica físicaDinàmica de fluidsStatistical physicsThermodynamicsPhysical chemistryFluid dynamicsinfo:eu-repo/semantics/article500278info:eu-repo/semantics/openAccess