A double-walled drinking vessel, e. The system includes a valve for controlling the amount of air diverted around the aftercooler and a mixing chamber for allowing the valved air supply to intermix with the aftercooler outlet stream. The color is determined at each pixel by removing the interference component and the reference-surface component from the irradiance data. The substitute victim is replaced in response to a selection of the second member as a victim in response to a cache miss in the data processing system, wherein the second member remains in the class of cache lines.