Abstract: The present invention relates to an X-ray irradiator for single blood bags, comprising: an X-ray irradiator main body provided with a chamber configured to safely hold a single blood bag therein and an X-ray tube configured to irradiate the chamber with X-rays; a loading part configured to load the blood bag; and a transfer part configured to transfer the blood bag between the loading part and the chamber to which X-rays are to be emitted. The X-ray irradiator for single blood bags according to the present invention can treat a single blood bag with X-rays, such that treatment optimized for a small amount of a blood bag can be performed, and a system configuration can be simplified by using an X-ray tube.

Abstract: A novel computer security system for preventing unauthorized users, children for example, from accessing both a personal computer and Internet web sites, comprising: 1) a smart card containing a user's information; 2) a keyboard which read the user's information from the card and compares it with registered user information; and 3) a central server, located at a separate remote site, which identifies the user's information and controls access to web sites.