This note adds three annexes to my previous paper math/9904044 Annex 1. A sufficient condition for self-adjointness Annex 2. Invariant closed operators on locally compact abelian groups Annex 3. The trace of Connes for quaternions This last item is a minor variation on the evaluation of Connes’s trace (math/9811068), which is explained here in the setting of quaternions and can be applied also ...

Over the past few years electrochemical capacitors (ECs) or, as they are so often referred to today, superor ultracapacitors, have become increasingly interesting for a certain critical group of applications because of their unique attributes. The first of these EC attributes is exceptional power performance, even at very low temperatures. The second is an essentially unlimited cycle life when ...

It is well understood that induction motors draw higher currents during their starting operations than is the case under full load running conditions. Since the early days of induction motor availability, starting methods other than Direct-on-Line have been used, and in some cases mandated by Utilities, to reduce the effect of these high starting currents on the electrical distribution network....