The present invention is directed to a novel shape-transferring cannula system, which provides access to tortuous and unsupported paths. The nitride-based compound semiconductor substrate as the seed crystal is polished at both surfaces thereof. The protective glove includes a palm face to cover the palm side of the hand and fingers of a wearer, a back face to cover the back side of the hands and fingers of a wearer, and at least one fourcette connecting the palm face to the back face around a perimeter of at least one of the fingers of the glove to define a 3-D type construction for the at least one of the fingers. Reference values are determined by the position-detecting unit for a variable open position of the door, which position can be set as desired, and for a completely open position, which is limited by a stop, as well as for a closed position of the door are stored in a nonvolatile memory and are processed during automatic travel of the door. The memory cell also includes a passing wordline that is separated from the gate by an insulator for coupling to other memory cells adjacent to the memory cell. The control circuit also locks a modulation frequency of the DCO and monitors the state of the digital frequency multiplier circuit in order to maintain the lock.