The administrative office of our web server warned that the site is continueously attacked from abroad these days. As far, though only members of the local committee and the organizing committee have access privileges to log in the official web site, the web administrative is afraid that I should stop allowing log-ins from abroad any more due to the warning. I am sorry for your inconvenience and would appreciate if you could feel something uncomfortable to use this web site after turning overseas accesses off on this friday 20th September. This action has no effect at all on accessing and browsing the pages as a general visitor. Thank you for your cooperation in advance.