A wiper apparatus for a vehicle window has a wiper arm pivot rotatably mounted in a pivot holder fixedly securable to vehicle structure. The staple cartridge includes a plurality of surgical fasteners disposed in rows of retention slots. The covering structure comprises a passivation region and a protective region of opaque polyimide; the protective region and the passivation region are opened above the contact pads for the passage of leads. A telecommunication switch times the communication and when the interval expires, the switch either plays a tone to signal the expiration or disconnects the call. If the time from the last shutdown is short enough where a significant amount of hydrogen still exists in the cathode side and the anode side of the sub-stacks, then the fast hydrogen purge can be eliminated, and the start-up sequence proceeds directly to the slow hydrogen purge. Although this resulting vector can be simulated, this vector can also be re-sampled to produce a new simulatable vector in which the voltages are separated by a constant time step.