Warning: Table './science/sessions' is marked as crashed and should be repaired
query: SELECT u.*, s.* FROM users u INNER JOIN sessions s ON u.uid = s.uid WHERE s.sid = 'dg1ikdjlkqc2i3vm882cv67iv0' in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135
Warning: Table './science/watchdog' is marked as crashed and should be repaired
query: INSERT INTO watchdog
(uid, type, message, variables, severity, link, location, referer, hostname, timestamp)
VALUES
(0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:173:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: SELECT COUNT(sid) AS count FROM sessions WHERE timestamp >= 1782253641 AND uid = 0\";s:5:\"%file\";s:63:\"/var/www/html/science/science.uni-obuda.hu/includes/session.inc\";s:5:\"%line\";i:120;}', 3, '', 'http://science.uni-obuda.hu/en/node/6338', '', '216.73.216.239', 1782254541) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135
Warning: Table './science/watchdog' is marked as crashed and should be repaired
query: INSERT INTO watchdog
(uid, type, message, variables, severity, link, location, referer, hostname, timestamp)
VALUES
(0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:184:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: SELECT COUNT(DISTINCT s.uid) FROM sessions s WHERE s.timestamp >= 1782253641 AND s.uid > 0\";s:5:\"%file\";s:67:\"/var/www/html/science/science.uni-obuda.hu/modules/user/user.module\";s:5:\"%line\";i:776;}', 3, '', 'http://science.uni-obuda.hu/en/node/6338', '', '216.73.216.239', 1782254541) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135
Warning: Table './science/watchdog' is marked as crashed and should be repaired
query: INSERT INTO watchdog
(uid, type, message, variables, severity, link, location, referer, hostname, timestamp)
VALUES
(0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:138:\"realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/var/www/html/science/science.uni-obuda.hu)\";s:5:\"%file\";s:60:\"/var/www/html/science/science.uni-obuda.hu/includes/file.inc\";s:5:\"%line\";i:200;}', 3, '', 'http://science.uni-obuda.hu/en/node/6338', '', '216.73.216.239', 1782254541) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135
Warning: Table './science/watchdog' is marked as crashed and should be repaired
query: INSERT INTO watchdog
(uid, type, message, variables, severity, link, location, referer, hostname, timestamp)
VALUES
(0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:138:\"realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/var/www/html/science/science.uni-obuda.hu)\";s:5:\"%file\";s:60:\"/var/www/html/science/science.uni-obuda.hu/includes/file.inc\";s:5:\"%line\";i:200;}', 3, '', 'http://science.uni-obuda.hu/en/node/6338', '', '216.73.216.239', 1782254541) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135
Chaos Synchronization in Duffing Systems with Robust Fixed Point Transformations | science.uni-obuda.hu
7th IEEE International Symposium on Intelligent Signal Processing (WISP 2011)
Conference Location
Floriana, Malta
ISBN Number
978-1-4577-1401-6
Abstract
Nowadays Lyapunov’s second method is the most prevailing solution in adaptive control problems. Despite of the idea being splendid, recently other solutions have come up which seem to be more beneficial in some cases. One of these methods is the family of Robust Fixed Point Transformations (RFPT) which proved to be effective in several areas, for example in Classical Mechanical Systems, Electromechanical Systems and in the frames of Model Reference Adaptive Controllers (MRAC). In this paper a novel application of RFTP, the synchronization of two chaotic Duffing systems is shown. Numerical simulations illustrate and confirm the usefulness of the procedure.
Who's online
There are currently users and guests online.
Warning: Table './science/watchdog' is marked as crashed and should be repaired
query: INSERT INTO watchdog
(uid, type, message, variables, severity, link, location, referer, hostname, timestamp)
VALUES
(0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:264:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: UPDATE sessions SET uid = 0, cache = 0, hostname = '216.73.216.239', session = '', timestamp = 1782254541 WHERE sid = 'dg1ikdjlkqc2i3vm882cv67iv0'\";s:5:\"%file\";s:63:\"/var/www/html/science/science.uni-obuda.hu/includes/session.inc\";s:5:\"%line\";i:69;}', 3, '', 'http://science.uni-obuda.hu/en/node/6338', '', '216.73.216.239', 1782254541) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135