Methods and apparatus to implement scalable routing in network communication systems are disclosed. The centrifuge system contains an energy saver touch screen control which can be either manually set or automatically set to turn the centrifuge on or off at predetermined times. In the method the processing state used at a given time is recognized, and a function corresponding to the processing state is set in said at least one processing means of the data group. 323session initiation protocol stack for performing H. When the terminal passes into the subarea of another first node, the transmission of useful data shifts from the previous node to this other first node, whereby a shifting of the signaling functionality is unnecessary. Novel sensing materials and their applications are discussed.