Abstract: A deriver derives a difference defined as a distance between a position of a charging coil and a position of an electronic appliance. An extractor extracts a detection tolerance from a table stored in a table storage, based on information related to a model of the electronic appliance. A transmitter transmits the difference and the detection tolerance to the electronic appliance. The electronic appliance determines a first power when a magnitude of a combination of the difference and the detection tolerance is equal to or smaller than a threshold value and determines a second power when the magnitude of the combination of the difference and the detection tolerance is larger than the threshold value. The first power is larger than the second power. A power controller adjusts a magnitude of power to be transported from the charging coil according to an instruction from the electronic appliance.

Abstract: [Problems] To provide a functional composition enable a stale paper production by being applied onto a press roll, and a method for improvement of detachability using the same. [Solutions] The present invention relates to a functional composition used by being applied onto a press roll for dehydration of a wet paper, comprising a compound expressed by the following general formula (1): STR wherein R represents an organic group which may have a substituent or a hydrogen atom, p and r each independently represent an integer of 0 to 228, and q represents an integer of 0 to 69, provided that p, q and r do not represent 0 simultaneously.