A dynamically-operating restoration circuit is used to apply a voltage or current restore pulse signal to thyristor-based memory cells and therein restore data in the cell using the internal positive feedback loop of the thyristor. High-melting diamines from the series of 1,5-naphthalenediamine, tetralindiamine, 1,4-phenylenediamine, durenediamine, and o-tolidinediamine are used as diamines. An oral care patch tape having a plurality of the planar oral care patch is provided. The measuring device is disposed forwardly in a traveling direction of an ion beam. This disc apparatus can accurately find a point of the designated search time from which to start reproducing video data. According to the present invention, as the base station controls transmission of the IPv6 neighbor discovery messages in the wireless communication system where the common network prefix is allocated, it is possible to reduce waste of radio resource and power consumption of the subscriber stations.