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The control performance of manual controlled human-machine system considerably depends on the skill level of human operator. So, authors have proposed a concept of ldquoCollaboraterrdquo which coexists with human operator as a parallel control element and can collaboratively control the machine in order to modify the response of human-machine system. In… (More)
The author reviews contribution of Gakushuin University group to the progress of the quantum transport in semiconductor two-dimensional electron systems (2DES) for forty years from the birth of the 2DES in middle of the 1960s till the finding of temperature dependent collapse of the quantized Hall resistance in the beginning of this century.