Cookies are a small text file saved on your hard disk once you download a file or visit a website. This text file contains readable information by the webserver if you visit the same website again. In other words, cookies are files produced by websites that you have visited before, in which browsing activities such as your website preferences are stored. Your cookie settings are essential as the cookies allow websites to track your browsing activities when you visit that website. Cookies may also be employed to save the information you enter in a form. For example, if you need to refill in the form that you have filled out before, the cookies remind you without having to rewrite long information such as an address, etc. that you have entered there. For these reasons, we collect cookies in order to customize the service we offer to our users and to provide them with convenience to access the contents that are tailored to their needs. These cookies are required for making use of the services such as registering as a user, accessing the limited parts of the website, and allowing you to browse the website. Without such cookies, you cannot make use of these services. Like all public websites, our website uses strictly necessary cookies. These cookies collect information related to how the visitors use the websites, including the pages most frequently visited by the visitors and whether they receive error messages from the internet pages. These cookies do not collect the visitor's identity information. All the information collected by the cookies is collected together, and therefore his identity is kept confidential. It is employed only to improve the operation of the website.