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Main Author:	FABIO A. OCAMPO MUÑOZ
Format:	Artículo científico
Language:	es
Published:	Universidad Tecnológica de Pereira 2008
Subjects:	Ingeniería energía Coenergía modelamiento levitación magnética sistemas no lineales
Online Access:	https://www.redalyc.org/articulo.oa?id=84903869
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CONSTRUCCIÓN DE UN SISTEMA PARA EL MODELADO DE UNA LÁMINA DE ACERO FLEXIBLE SUSPENDIDA MAGNÉTICAMENTE FABIO A. OCAMPO MUÑOZ ANDRÉS ESCOBAR MEJÍA JORGE HUMBERTO SAENZ Ingeniería energía Coenergía modelamiento levitación magnética sistemas no lineales En este artículo se presenta el análisis del modelamiento de una lámina flexible la cual se suspende en el espacio por la acción de fuerzas magnéticas que actúan sobre ella. Dadas las características de la planta se emplean técnicas especiales para el modelado de sistemas altamente no lineales y los resultados obtenidos son utilizados con el fin de describir la dinámica del sistema. Los datos analíticos son comparados con lo obtenidos a partir del modelo real. 2008 artículo científico 0122-1701 https://www.redalyc.org/articulo.oa?id=84903869 es http://www.redalyc.org/revista.oa?id=849 Scientia Et Technica application/pdf Universidad Tecnológica de Pereira Scientia Et Technica (Colombia) Num.38 Vol.XIV

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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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