In a communication system, a receiving module provided in a second electronic unit receives first information transmitted from a first electronic unit. One actuator is mounted on a carrier gear which connects to a worm gear which is driven by an electric motor. The rotors may be arranged in pairs with the rotors of each pair rotating in opposite directions about parallel axes so that lateral oscillations cancel and longitudinal vibrations in the milling direction reinforce one another. By resolving any stack height variances while the cells of the stack are maintained in their substantially compressed state, assembly operations are simplified in that repeated compression and decompression of the stack is avoided while trying to ensure that the stack and enclosure are joined into their final assembly form. Detectors are thus built for recognizing objects in input video, one for each of the clusters, and associated with the estimated zenith angles and azimuth angles of the poses of the respective clusters. , the ablating probes of the invention, and at least one sleeve through which the ablating probe is passed to contact the intraosseous nerve, or the area in close proximity to the intraosseous nerve, thereby facilitating ablation of the intraosseous nerve.