A vehicle includes an engine that shuts down and restarts at idle, a dual-clutch transmission having a controller and two input clutches for connecting the engine to respective evenly and oddly numbered gears of the DCT. The invention involves digesting proteins using enzymes within the gel pieces in vessels which have permeable but lyophobic bases in such a manner that they scarcely touch the walls of the vessel, and then rapidly removing the digested proteins from the gel pieces almost completely by gentle centrifuging. Resilient wafer pads are used to minimize the effects of the abraded surfaces of the wafers not being precisely parallel to the platen abrading surface due to misalignment of the spindle tops. The electrostatic modulator includes an electrostatically responsive reflective ribbon oriented to receive a portion of the frequency dispersed light having a specified bandwidth.