Elementos de máquinas

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Detalles Bibliográficos
Autor Principal:	Hamrock, Bernard J.
Otros autores o Colaboradores:	Jacobson, Bo O., Schmid, Steven R.
Formato:	Libro
Lengua:	español
Datos de publicación:	México : McGraw-Hill, 1999.
Temas:	ELEMENTOS DE MAQUINAS CARGA ESFUERZO DEFORMACIONES MATERIALES SOLIDOS ESFUERZOS CORTANTES TORSION FLEXION FALLA POR CARGA ESTATICA FALLA POR CARGA CICLICA FALLA POR IMPACTO LUBRICACION FRICCION DESGASTE COLUMNAS ESFUERZOS DE CILINDROS DEFORMACIONES DE CILINDROS EJES COJINETES EMPAQUES HIDRODINAMICOS EMPAQUES HIDROSTATICOS RODAMIENTOS ENGRANES SUJETADORES TORNILLOS DE POTENCIA RESORTES FRENOS EMBRAGUES ELEMENTOS FLEXIBLES PROYECTO DE DISEÑO PROPIEDADES DE LOS MATERIALES RELACION ESFUERZO DEFORMACION
Descripción Física:	p. 926, + 1CD
ISBN:	02561906909

MARC


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008	060510s1999 \|\|\|a fr\|\|\|\|\| \|0 0\|spa d
020			\|a 02561906909
080			\|a 621.8
100	0		\|a Hamrock, Bernard J. \|9 282969
245	0	0	\|a Elementos de máquinas
260			\|a México : \|b McGraw-Hill, \|c 1999.
300			\|a p. 926, + 1CD
599			\|a A3459 Ubic.:621.8 HAM Ej.1 PRES;31591/94 31671 COMPRA 2005
650	1	4	\|a ELEMENTOS DE MAQUINAS \|9 265506
650	1	4	\|a CARGA \|9 282970
650	1	4	\|a ESFUERZO \|9 265139
650	1	4	\|a DEFORMACIONES \|9 265005
650	1	4	\|a MATERIALES SOLIDOS \|9 265245
650	1	4	\|a ESFUERZOS CORTANTES \|9 282971
650	1	4	\|a DEFORMACIONES \|9 265005
650	1	4	\|a TORSION \|9 264832
650	1	4	\|a FLEXION \|9 264777
650	1	4	\|a FALLA POR CARGA ESTATICA \|9 282972
650	1	4	\|a FALLA POR CARGA CICLICA \|9 282973
650	1	4	\|a FALLA POR IMPACTO \|9 282974
650	1	4	\|a LUBRICACION \|9 264839
650	1	4	\|a FRICCION \|9 279568
650	1	4	\|a DESGASTE \|9 267220
650	1	4	\|a COLUMNAS \|9 265140
650	1	4	\|a ESFUERZOS DE CILINDROS \|9 282975
650	1	4	\|a DEFORMACIONES DE CILINDROS \|9 282976
650	1	4	\|a EJES \|9 266269
650	1	4	\|a COJINETES \|9 266271
650	1	4	\|a EMPAQUES HIDRODINAMICOS \|9 282977
650	1	4	\|a EMPAQUES HIDROSTATICOS \|9 282978
650	1	4	\|a RODAMIENTOS \|9 264860
650	1	4	\|a ENGRANES \|9 275095
650	1	4	\|a SUJETADORES \|9 282979
650	1	4	\|a TORNILLOS DE POTENCIA \|9 282980
650	1	4	\|a RESORTES \|9 274868
650	1	4	\|a FRENOS \|9 270686
650	1	4	\|a EMBRAGUES \|9 274837
650	1	4	\|a ELEMENTOS FLEXIBLES \|9 282981
650	1	4	\|a PROYECTO DE DISEÑO \|9 282982
650	1	4	\|a PROPIEDADES DE LOS MATERIALES \|9 272065
650	1	4	\|a RELACION ESFUERZO DEFORMACION \|9 282983
700	0		\|a Jacobson, Bo O. \|9 282984
700	0		\|a Schmid, Steven R. \|9 282985
929			\|a A3459 Ubic.:621.8 HAM Ej.1 PRES;31591/94 31671 COMPRA 2005;33297 fundación 2006
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959			\|a MON
960			\|a 9788
970			\|a Registro convertido en forma automatizada
990			\|a GBY
999			\|c 9412 \|d 9412
040			\|a AR-LpUFI \|c AR-LpUFI

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'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
VUFIND_SESSION	"2i5fqr5umbndmp7m2rnb49bpqr"
language	"es"

Session

Key	Value
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SessionState	Laminas\Stdlib\ArrayObject {#906}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1507}
SessionHelper	Laminas\Stdlib\ArrayObject {#1651}

Server/Request Data

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REMOTE_PORT	"49507"
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GATEWAY_INTERFACE	"CGI/1.1"
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REQUEST_METHOD	"GET"
QUERY_STRING	""
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Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
VUFIND_SESSION	"2i5fqr5umbndmp7m2rnb49bpqr"
language	"es"

Session

Key	Value
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SessionState	Laminas\Stdlib\ArrayObject {#906}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1507}
SessionHelper	Laminas\Stdlib\ArrayObject {#1651}

Server/Request Data

Key	Value
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REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"catalogo.bibliotecas.unlp.edu.ar"
REDIRECT_STATUS	"200"
VUFIND_ENV	"development"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"catalogo.bibliotecas.unlp.edu.ar"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"ui=standard; VUFIND_SESSION=2i5fqr5umbndmp7m2rnb49bpqr; language=es"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"catalogo.bibliotecas.unlp.edu.ar"
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 catalogo.bibliotecas.unlp.edu.ar Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.52 (Ubuntu)"
SERVER_NAME	"catalogo.bibliotecas.unlp.edu.ar"
SERVER_ADDR	"172.17.0.170"
SERVER_PORT	"443"
REMOTE_ADDR	"18.226.248.119"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"webmaster@bibliotecas.unlp.edu.ar"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
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GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/dfi.9412/Details"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1738377724.1304
REQUEST_TIME	1738377724

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Elementos de máquinas

MARC

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Environment & details:

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