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1. Verfasser:	E. E. Navas Medina
Format:	Artículo científico
Sprache:	es
Veröffentlicht:	Universidad Tecnológica de La Habana "José Antonio Echeverría" (CUJAE) 2007
Schlagworte:	Ingeniería mineral de manganeso hornos de arco eléctricos Producción de aceros al carbono
Online-Zugang:	https://www.redalyc.org/articulo.oa?id=225117646003
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Producción de aceros al carbono en hornos de arco eléctrico en condiciones de mineral de manganeso. E. E. Navas Medina J. Arzola Ruiz A. Batista Cabrera Ingeniería mineral de manganeso hornos de arco eléctricos Producción de aceros al carbono El presente trabajo constituye una segunda etapa de investigación relacionada con la producción de acero en hornos de arco eléctrico con revestimiento básico en condiciones de utilización de mineral de manganeso como sustituto del ferromanganeso. En la investigación se caracteriza el acero producido utilizando el mineral de manganeso en dos variantes tecnológicas diferentes y se determinan parámetros importantes, tales como la estructura del acero obtenido, la influencia de la composición química y la temperatura en la reducción del Mn. Adicionalmente, se determina la composición química de la escoria, su basicidad e influencia en el aprovechamiento del Mn del mineral, así como, lo que significa la sustitución del FeMn en la problemática medioambiental. 2007 artículo científico 1815-5944 https://www.redalyc.org/articulo.oa?id=225117646003 es http://www.redalyc.org/revista.oa?id=2251 Ingeniería Mecánica application/pdf Universidad Tecnológica de La Habana "José Antonio Echeverría" (CUJAE) Ingeniería Mecánica (Cuba) Num.2 Vol.10

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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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