A method of carburizing treatment is proposed in which if carburizing is carried out at a low temperature, carbon will not turn amorphose and deposit on the surface of a titanium metal but reliably penetrate into between metallic atoms. Hook and loop closures secure the panel assembly. When the article 70 is elevatedlowered, the ID reader is retracted into the cover 50. Alternatively, a user may wish to engage in continuous banked turning of their vehicle to realistically simulate aspects of vehicle-to-vehicle combat. The various visual, aural, and tactile enhancements may be provided based on a relationship between a previously highlighted listing and a currently highlighted listing. The surfaces opposite to the surfaces to be processed are pressed against the adhesive.