A liquid crystal display apparatus includes first and second substrates, a liquid crystal layer, a sealing member, and first and second spacers. 269850, Ijoukak, Morocco 92060, Ouarzazate, Morocco KBG 5938, Oujda, Morocco KBG 5892, El-Kelaa-des-Mgouna, Morocco KBG 5914, Boumalne-de-Dades, Morocco KBG 5921, USDA-PI no. The powdered components are then heated to fuse the resins and bond them to surfaces of the respective recesses. The shifting circuit includes a counter for counting the waveforms in the first and second processes and a circuit to shift from the process being processed to the other weld process when the waveform count of the weld process being processed reaches a preselected number for such weld process. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene.