By using power of DC superimposed AC, oxidation rate rose with increase of voltage but had nothing to do with frequencies in this experiment.

Describes the features, working principle and detailed methods of an anti-ping pong effect, intelligent and automatic switching device for compress air in respirators.

This paper mainly focuses on ping-ponging and tri-side-handoff problems which are common in handoff between wireless networks, putting forward an adapted algorithm based on predictive feedback model.