It is an object of the present invention to provide a wheel rim equipped with rim flanges that show no deformation or damage even though a reduction in weight is achieved. The base station 30 sends a pilot symbol sequence known to the mobile station 10, to the mobile station 10, using a plurality of carriers for downward channels, and performs communication with the mobile station 10 while multiplying the channels by frequencywise same scrambling codes every symbol period. The prize may be a progressive jackpot which comprises an initial starting value and a contribution from the amounts wagered on the electronic gaming devices. The power processing unit is configured to control a fluctuation in voltage across the energy storage device while electrical energy is received by the energy storage device, or while electrical energy is delivered from the energy storage device to the load. A circuit is configured to magnetically control a position of the suspended object. Moreover, the vacuum degree of the vacuum pump can be raised for stabilizing the braking efficiency.