The present invention relates to a process for producing a knitted textile material that, when transfer or film-coated, is suitable for use as an artificial leather substrate. A hydroelectric device and a thermistance are disposed in the main body. In this manner, the first support member may be selectively pivotal between vertically-aligned and vertically-offset positions relative to a centrally registered longitudinal axis of the base. Preferred coating compositions can enhance lithographic performance of an associated photoresist composition. The system regularizes ventricular rhythms by pacing the ventricle, but inhibits pacing when the ventricular rhythms are stable.