A bearing journal projects from an end of a material web wound into a roll. MEANS FOR SOLVING PROBLEMS Association node extraction unit of a text mining device extracts association nodes containing semantically associated words from a graph obtained as a result of syntax analysis. The sensor is further configured to read an identifier of an element attached to the other of the module and the module holder when the module begins insertion into the module holder and provide a sensor signal in response to reading the identifier. This invention provides a user-friendly, flexible and yet effective method of managing the size of an Authorized Domain. The load data may be collected and processed locally or may be transmitted to a remote computer or hand-held device for analysis. Adjacent to an operation panel is located a V-shaped groove which contains a first slope stretching away from the operation panel and slanting downward and a second slope stretching further away from the operation panel and slanting upward, where the V-shaped groove contains a fingerprint sweep sensor which detects a fingerprint on a finger moved along the first slope and the second slope.