Method and apparatus are provided to allocate a time and frequency resource of a resource request indicator and to transmit an RRI. The ion source includes a discharge chamber, an electron emitter, a cathode, a screen grid, an accelerator grid, and a screen electrode. One form of the present invention includes heat transfer members within the passage to increase the heat transfer between the exhaust gas flowing in the passage and the cylinder head. A face of the substrate opposing the rotor is provided with a FG pattern 19 opposing the magnet 15. A further embodiment of the invention provides a non-volatile microchip memory component to store information about the vehicle operator usable by medical personnel at the scene of a crash.