Desarrollan una máquina herramienta multiuso para aplicaciones educativas.

Detalles Bibliográficos
Formato:	Artículo
Lengua:	español
Datos de publicación:	La Plata : Facultad de Ingeniería
Temas:	AEROMODELISMO GEMA DESARROLLOS TECNOLOGICOS DISPOSITIVOS ELECTRONICOS FACULTAD DE INGENIERIA ALBARRACIN, EMILIANO MENGHINI, MATIAS
Notas:	Extensión.
Descripción Física:	p. 34-35 : il.

MARC


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245	0	0	\|a Desarrollan una máquina herramienta multiuso para aplicaciones educativas.
260			\|a La Plata : \|b Facultad de Ingeniería
300			\|a p. 34-35 : \|b il.
500			\|a Extensión.
505			\|a El dispositivo, de bajo costo, puede adaptarse a distintos usos, ya sea como fresadora, impresora 3D o corte por láser, entre otras. La idea es que esté al alcance de alumnos de escuelas secundarias y de centros de formación técnica para que entiendan el funcionamiento interno de la máquina y no sólo cómo usarla. Eso potencia la creatividad, el ingenio y abre posibilidades a nuevos desarrollos
650		4	\|a AEROMODELISMO \|9 281680
650		4	\|a GEMA \|9 296647
650		4	\|a DESARROLLOS TECNOLOGICOS \|9 312098
650		4	\|a DISPOSITIVOS ELECTRONICOS \|9 263908
650		4	\|a FACULTAD DE INGENIERIA \|9 272332
650		4	\|a ALBARRACIN, EMILIANO \|9 308189
650		4	\|a MENGHINI, MATIAS \|9 308190
773	0		\|a Ingeniar: Revista de Ingeniería \|d La Plata: Facultad de Ingeniería \|g Vol. 7, no. 14 (2016) \|w INGC-REV-01804
856	4	0	\|i https://ing.unlp.edu.ar/wp-content/uploads/acordeon/multimedia/revistas/010_Ingeniar/016_Ingeniar%20Nro%20016%20(Marzo%202017).pdf
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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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Desarrollan una máquina herramienta multiuso para aplicaciones educativas.

MARC

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