Enjeux technologiques des métaux et matériqux critiques : L'approche de Renault

Enregistré dans:

Détails bibliographiques
Publié dans:	Géosciences No 15
Auteur principal:	Schulz, Philippe.
Support:	Article de revue
Langue:	Français
Publié:	2012.
Sujets:	Articles de périodiques
Résumé:	Pour sécuriser leurs approvisionnements en matières premières, les entreprises doivent introduire dans leurs organisations de véritables ruptures en termes d'analyse stratégique et de développement techniques et indudtriels. Cet article expose l'approche mise en place par Renault pour identifier et gérer les risques sur les matières premières, et ainsi réduire sa vulnérabilité. Partenariats R&D innovants, analyse des filières d'approvisionnement avec ses fournisseurs et enfin stratégies techniques sur la substitution et le recyclage sont au coeur de la démarche de Renault.
Lien:	Dans: Géosciences

BU Sciences

	Localisation	Cote	Statut
n° 15 (2012)	Archives	570 RS GEO	Dispo. du n° : voir "Lien"

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) { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, "w")) { $return = fwrite($handle, $data); fclose($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. echo 'Cannot write session to ' . $sessFile . "\n"; return false; } }

// 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, $data) { if ($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); }

* * @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'

Environment & details:

GET Data empty

POST Data empty

Files empty

Cookies empty

Session

Key	Value
__Laminas	Array ( [_REQUEST_ACCESS_TIME] => 1721269732.4937 [_VALID] => Array ( [Laminas\Session\Validator\Id] => lgg8v7euefbnjgv3s31l4qrnvd ) )
SessionState	Laminas\Stdlib\ArrayObject Object ( [storage:protected] => Array ( [cookiePath] => / ) [flag:protected] => 2 [iteratorClass:protected] => ArrayIterator [protectedProperties:protected] => Array ( [0] => storage [1] => flag [2] => iteratorClass [3] => protectedProperties ) )
FlashMessenger	Laminas\Stdlib\ArrayObject Object ( [storage:protected] => Array ( ) [flag:protected] => 2 [iteratorClass:protected] => ArrayIterator [protectedProperties:protected] => Array ( [0] => storage [1] => flag [2] => iteratorClass [3] => protectedProperties ) )

Server/Request Data

Key	Value
REDIRECT_VUFIND_ENV	development
REDIRECT_VUFIND_LOCAL_DIR	/home/tamil/vufind/local-uco
REDIRECT_VUFIND_LOCAL_MODULES	Tamil
REDIRECT_STATUS	200
VUFIND_ENV	development
VUFIND_LOCAL_DIR	/home/tamil/vufind/local-uco
VUFIND_LOCAL_MODULES	Tamil
HTTP_ACCEPT	/
HTTP_USER_AGENT	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
HTTP_ACCEPT_ENCODING	gzip, br, zstd, deflate
HTTP_HOST	vufind.uco.fr
PATH	/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
SERVER_SIGNATURE	<address>Apache/2.4.52 (Ubuntu) Server at vufind.uco.fr Port 80</address>
SERVER_SOFTWARE	Apache/2.4.52 (Ubuntu)
SERVER_NAME	vufind.uco.fr
SERVER_ADDR	193.49.1.3
SERVER_PORT	80
REMOTE_ADDR	18.223.172.82
DOCUMENT_ROOT	/var/www/html
REQUEST_SCHEME	http
CONTEXT_PREFIX	/
CONTEXT_DOCUMENT_ROOT	/home/tamil/vufind/public/
SERVER_ADMIN	webmaster@localhost
SCRIPT_FILENAME	/home/tamil/vufind/public/index.php
REMOTE_PORT	1042
REDIRECT_URL	/Record/337683
GATEWAY_INTERFACE	CGI/1.1
SERVER_PROTOCOL	HTTP/1.1
REQUEST_METHOD	GET
QUERY_STRING
REQUEST_URI	/Record/337683
SCRIPT_NAME	/index.php
PHP_SELF	/index.php
REQUEST_TIME_FLOAT	1721269732.4803
REQUEST_TIME	1721269732

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Cookies empty

Session

Key	Value
__Laminas	Array ( [_REQUEST_ACCESS_TIME] => 1721269732.4937 [_VALID] => Array ( [Laminas\Session\Validator\Id] => lgg8v7euefbnjgv3s31l4qrnvd ) )
SessionState	Laminas\Stdlib\ArrayObject Object ( [storage:protected] => Array ( [cookiePath] => / ) [flag:protected] => 2 [iteratorClass:protected] => ArrayIterator [protectedProperties:protected] => Array ( [0] => storage [1] => flag [2] => iteratorClass [3] => protectedProperties ) )
FlashMessenger	Laminas\Stdlib\ArrayObject Object ( [storage:protected] => Array ( ) [flag:protected] => 2 [iteratorClass:protected] => ArrayIterator [protectedProperties:protected] => Array ( [0] => storage [1] => flag [2] => iteratorClass [3] => protectedProperties ) )

Server/Request Data

Key	Value
REDIRECT_VUFIND_ENV	development
REDIRECT_VUFIND_LOCAL_DIR	/home/tamil/vufind/local-uco
REDIRECT_VUFIND_LOCAL_MODULES	Tamil
REDIRECT_STATUS	200
VUFIND_ENV	development
VUFIND_LOCAL_DIR	/home/tamil/vufind/local-uco
VUFIND_LOCAL_MODULES	Tamil
HTTP_ACCEPT	/
HTTP_USER_AGENT	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
HTTP_ACCEPT_ENCODING	gzip, br, zstd, deflate
HTTP_HOST	vufind.uco.fr
PATH	/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
SERVER_SIGNATURE	<address>Apache/2.4.52 (Ubuntu) Server at vufind.uco.fr Port 80</address>
SERVER_SOFTWARE	Apache/2.4.52 (Ubuntu)
SERVER_NAME	vufind.uco.fr
SERVER_ADDR	193.49.1.3
SERVER_PORT	80
REMOTE_ADDR	18.223.172.82
DOCUMENT_ROOT	/var/www/html
REQUEST_SCHEME	http
CONTEXT_PREFIX	/
CONTEXT_DOCUMENT_ROOT	/home/tamil/vufind/public/
SERVER_ADMIN	webmaster@localhost
SCRIPT_FILENAME	/home/tamil/vufind/public/index.php
REMOTE_PORT	1042
REDIRECT_URL	/Record/337683
GATEWAY_INTERFACE	CGI/1.1
SERVER_PROTOCOL	HTTP/1.1
REQUEST_METHOD	GET
QUERY_STRING
REQUEST_URI	/Record/337683
SCRIPT_NAME	/index.php
PHP_SELF	/index.php
REQUEST_TIME_FLOAT	1721269732.4803
REQUEST_TIME	1721269732

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Enjeux technologiques des métaux et matériqux critiques : L'approche de Renault

BU Sciences

Documents similaires

Environment & details:

Environment & details: