The present invention provides a rubber composition for a tread, in which wet grip properties, rolling resistance, steering stability, abrasion resistance and processability are highly improved in a balanced manner. The starter motor systems are especially well suited for new, high fuel efficiency automobiles in which the engine is shut down and subsequently started. The two scan heads are separated from each other along the paper path by a pitch length longer than a sheet to be scanned. A transceiver receives the client 10GE LAN signal in the LAN format. The performance of signal inhomogeneity correction methods has been evaluated and confirmed using phantom and in vivo human brain experiments.