A communication system allows a receiving party to request additional time to accept a communication. The invention also relates to the construction of a chimeric gene encoding all or a portion of the geranylgeranyl pyrophosphate synthase, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the geranylgeranyl pyrophosphate synthase in a transformed host cell. For a red pixel, an interpolated green value is determined by green values of adjacent green pixels, and an interpolated blue value is determined by blue values of neighboring blue pixels and a modification value. Data migration from the old subsystem to the new subsystem is executed after all of the first access paths are switched to the second access paths. The sum of concentrations of chemical species, which absorb light in the waveband in the common absorption region, in the single or plurality of chemical species contained in the object gas, is computed with the analyzer based on the absorbance. The electrode can be used in a nickel-metal hydride storage battery, for example, particularly exhibits high efficiency chargedischarge characteristics while satisfying general characteristics as a battery, and has a relatively low cost and facilitates recycling.