Both a mold blade for forming sipes and the sipe so formed in a tire tread element have three dimensional portions. By this, multiple client applications can simultaneously utilize the data generated by the lower-level process while at least one client application can effect streaming of the video stream to an output device. When the supply of the AC power is interrupted, the switch is connected to a restart circuit, whereupon the circuit is activated to allow a charging current to flow to a capacitor, which is connected in series in a drive current path of a drive circuit with a time delay on the order of 0. The devices are configured to be removably secured to a skin surface in proximity to the wound site and shield the wound from endogenous andor exogenous stress. The overcoat layer includes a plurality of contacts.