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Bibliographic Details
Main Author:	M. Alarcón
Format:	Artículo científico
Language:	es
Published:	Sociedad Mexicana de Física A.C. 2014
Subjects:	Física, Astronomía y Matemáticas ciclo límite oscilador salino Dinámica no lineal
Online Access:	https://www.redalyc.org/articulo.oa?id=57048161007
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Perturbaciones y acoplamientos en un oscilador no lineal: el caso del oscilador salino M. Alarcón H. González J. García A. Falcón-Neri A. Torres A. Cabrera-Manuel H. Arce Física, Astronomía y Matemáticas ciclo límite oscilador salino Dinámica no lineal El estudio de la dinámica no lineal ha tomado un auge considerable en las últimas décadas. Parte de este auge se explica porque su campo de aplicación no se restringe a la física o las matemáticas, sino que se extiende a la biología, la medicina, la economía, las finanzas, la robótica y a muchas otras áreas. Uno de los fenómenos que puede ocurrir en estos sistemas es el surgimiento de oscilaciones no lineales con un ciclo atractor robusto, es decir, fenómenos que se repiten con regularidad y al ser perturbados regresan a su ciclo natural de oscilación. Para estudiarlos, un procedimiento muy importante es el análisis de su comportamiento cuando son forzados mediante perturbaciones periódicas. No obstante la importancia de estos fenómenos, su estudio se encuentra ausente de la mayoría de los programas de licenciaturas en Física. Una razón de ello podría ser la complejidad que tienen muchos dispositivos experimentales con que se suelen estudiar. En este artículo se presenta un dispositivo experimental muy simple de construir: el oscilador salino, que permite ensenar de manera clara, directa y muy visual el estudio del efecto de perturbaciones sobre osciladores no lineales con un ciclo atractor robusto. 2014 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57048161007 es http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.60

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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