A multimodality imaging system including a plurality of imaging systems, and at least one rail upon which at least one of the imaging systems is slidingly mounted. Rotation of either the outer ring member or the sun roller member wedges the planetary roller within a convergent gap which squeezes the planetary roller between the outer ring member and the sun roll member. A control unit operates an air bag in accordance with the weight signal and the crash signal. A power supply generated from the back up battery is provided to circuitry of the memory control card during normal operations of the memory control circuit during a non-power loss state. When the electronic equipment is placed in a specific condition, the second control unit is capable of performing a control operation of a specific function performing element of the plurality of function performing elements, without an instruction from the first control unit. The coating matrix layer includes a graphene layer.