Administración de la producción y las operaciones : Conceptos, modelos y funcionamiento

Detalles Bibliográficos
Autor Principal:	Adam, Everett E.
Otros autores o Colaboradores:	Ebert, Ronald J.
Formato:	Libro
Lengua:	español
Datos de publicación:	México : Prentice-Hall Hispanoamericana, 1991.
Edición:	4a ed.
Temas:	ORGANIZACION DE LA PRODUCCION PLANIFICACION CONTROL DE LA PRODUCCION PRODUCCION ADMINISTRACION DE OPERACIONES DISEÑO DE PRODUCTOS INSTALACIONES DISTRIBUCION EN PLANTAS PUESTOS DE TRABAJO DISEÑO DE PUESTOS DE TRABAJO ADMINISTRACION DE PROYECTOS INVENTARIOS CONTROL DE INVENTARIOS PROCESO DE PRODUCCION
Descripción Física:	739 p. ; 26 cm.
ISBN:	9688802212

MARC


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008	060510s1991 \|\|\|a fr\|\|\|\|\| \|0 0\|spa d
020			\|a 9688802212
080			\|a 658.5
100	1		\|a Adam, Everett E. \|9 291528
245	0	0	\|a Administración de la producción y las operaciones : \|b Conceptos, modelos y funcionamiento
250			\|a 4a ed.
260			\|a México : \|b Prentice-Hall Hispanoamericana, \|c 1991.
300			\|a 739 p. ; 26 cm.
505	0		\|a Planeación de la ubicación de instalaciones; Adam; Ebert. Everett E.. Ronald J.;Planeación de la distribución de planta; Adam; Ebert. Everett E.. Ronald J.;La administración orientada a la calidad; Adam; Ebert. Everett E.. Ronald J.;Análisis y control de la calidad; Adam; Ebert. Everett E.. Ronald J.
599			\|a 27905 COM;27603 COM;27905 COM;27603 COM
650		4	\|a ORGANIZACION DE LA PRODUCCION \|9 263118
650		4	\|a PLANIFICACION \|9 269600
650		4	\|a CONTROL DE LA PRODUCCION \|9 270125
650		4	\|a PRODUCCION \|9 268796
650		4	\|a ADMINISTRACION DE OPERACIONES \|9 292226
650		4	\|a DISEÑO DE PRODUCTOS \|9 292227
650		4	\|a INSTALACIONES \|9 269981
650		4	\|a DISTRIBUCION EN PLANTAS \|9 271207
650		4	\|a PUESTOS DE TRABAJO \|9 274174
650		4	\|a DISEÑO DE PUESTOS DE TRABAJO \|9 292228
650		4	\|a ADMINISTRACION DE PROYECTOS \|9 292229
650		4	\|a INVENTARIOS \|9 266450
650		4	\|a CONTROL DE INVENTARIOS \|9 273532
650		4	\|a PROCESO DE PRODUCCION \|9 263660
700	1		\|a Ebert, Ronald J. \|9 292230
929			\|a 27905 COM;27603 COM;27905 COM;27603 COM
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foreach (glob($this->path . '/sess_*') as $filename) { if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); } } return true; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// 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 true; } /** * 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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Administración de la producción y las operaciones : Conceptos, modelos y funcionamiento

MARC

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