An aggregation device performs a synchronous processing so that a synchronous delivery may be made from a plurality of base stations through a broadcasting channel. In particular, the invention includes emulsion compositions comprising hydrocarbon fuel, water and alkyl sorbitan surfactants for starting a reformer of a fuel cell system. With this construction, the voltage input to a regulator circuit 1121 as the reference voltage changes in correspondence to the change in voltage VDDH which is caused by the change in amplitude.