Provided herein is a linear motor in which a back yoke can readily be mounted onto a plurality of linear motor units. The apparatus comprises: a lower polishing plate and an upper polishing plate for polishing both sides of the wafer; a carrier having a main body part, in which a through-hole for holding the wafer is formed. The hanger has a mounting board fitted into the bottom-open pocket and a plurality of hooks respectively extended out of the through holes of the bottom-open pocket for hanging. The hypothesized channelization code is a \u201cbase\u201d code that can be used to generate all possible channelization codes that may have been used for the physical channel. The agents include polycosanols, tocotriends andor lycopene, procyanidole oligomers and vegetable oil rich in insaturated fatty acids.