A base headboard for supporting the back of an injured person’s head has an elongated slot with teeth racks disposed on either side of the injured person’s head. The composition includes 6\u201318% by dry weight of Polygonati Rhizoma, 10\u201340% by dry weight of Astragalus membranaceus Bge. Multicast data packets transmitted by the repair nodes include a retransmission count field in addition to the multicast packet header information, a session identifier, a packet sequence number and payload data. Each module for supporting the exercising person has a separate component that is effectively connected with the body part of the exercising person assigned to it. Preferred reflector material includes plastic lenses andor reflective tape. The heating is terminated and the assembly of the cathode and anode is removed from the vacuum sintering furnace, such that the carbon nanotube is formed parallel to the electric field and perpendicular to the cathode, or one end of the carbon nanotube is inclined towards the anode to advantage electron generation therefrom.