A bio-medical unit includes a power harvesting module and an RF communication module. In response to detecting such duplication, the communication device discontinues being served by the first access network and continues with communication via the second access network. For zooming from the wide-angle end to the telephoto end, the 1st G1 to the 4th lens group G4 are each operable to move with a change in the space between adjacent lens groups. The device may generate an integrated circuit design comprising the channel implementation area allocated for each of the plurality of signal channels. Adhesive is applied thereto, and the bag advanced, by movement of the gripper carrier, for advancement of the folded bag to at least one pair of intermittently-driven nip rollers. With this integral emission control system, diesel engines are able to meet ultra low emission standards.