A motor-driven vehicle includes a vehicle frame and a driving device. A transmission system has a plurality of modules installed at different positions along a predetermined road. On each of a plurality of threads running in parallel, a text bitmap is generated for a respective text segment from the plurality of text segments, the text bitmap illustrating the sequence of characters for the respective text segment. The preparation is positioned on a suitably prepared natural tooth part in a manner such that the material with the thermoplastic properties is in contact or may be brought into contact with the dentin surface andor enamel surface. Valuable materials in the waste ash may also be more easily recovered and reused. Each antenna may have a different gain pattern at a different respective operating frequency, and the antennas may have different shapes to define different gain patterns at a given operating frequency.