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Bibliographic Details
Main Author:	Osmar Lins de Noronha
Format:	Artículo científico
Language:	es
Published:	Universidad de Lima 2018
Subjects:	Computación análisis estocástico análisis determinístico Dimensionamiento de flota
Online Access:	https://www.redalyc.org/articulo.oa?id=730180370003
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Dimensionamiento de flota en las operaciones de carguío y transporte usando modelos de simulación de sistemas Osmar Lins de Noronha Alcides Eloy Cano Nuñez Adeline F dos Reis Carlos Enrique Arroyo Ortiz Computación análisis estocástico análisis determinístico Dimensionamiento de flota El estudio aborda aspectos que deben ser considerados en el dimensionamiento de equipamiento de carguío y transporte de material (mineral y desmonte) en una mina a cielo abierto localizada en el centro-oeste de Brasil. Este proceso es complejo ya que está involucrada en el análisis una significativa cantidad de variables que limitan las actividades intrínsecas a las operaciones de carguío y transporte, tales como: tasas de producción por unidad de tiempo, características físico-mecánicas del material, distancias de transporte, topografía, diseño de accesos, vías de transporte, ciclos y rendimiento de la flota (camión, pala); adicionalmente, existen otras variables externas que también condicionan la normal operación, dentro las cuales podemos citar lluvia, nieve, neblina y movimiento sísmico. El trabajo tiene como finalidad dimensionar la flota de los equipos de carguío y transporte que atienda el requerimiento de planta de procesamiento de manera eficiente. 2018 artículo científico 1993-4912 https://www.redalyc.org/articulo.oa?id=730180370003 es http://www.redalyc.org/revista.oa?id=7301 Interfases application/pdf Universidad de Lima Interfases (Perú) Num.11

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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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