A carbon nanotube transistor and method of manufacturing a carbon nanotube transistor is disclosed. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. An image processing apparatus is provided that comprises: an image obtaining unit that obtains a tomographic image of a subject’s eye; an extracting unit that extracts a lamina cribrosa from the tomographic image; and a display control unit that controls a display means to display a display form showing a shape of the extracted lamina cribrosa. The first component carries a cationic charge that is capable of forming ionic bonds with the negatively charged fibers of the tissue web, thus providing a retention mechanism by which the creping composition is retained. The improved locking mechanism provides a safety pin that is secured within the frame elements so as to be positioned between the knife blade and the free end of a locking bar that is spring urged thereagainst imparting improved force transfer locking structure thereto with wear adjustably pivot engagement points of the locking mechanism under spring urged locking engagement. According to the invention, in conjunction with the manufacturing of the body element of the structure being manufactured, parts may be added to the body element without separate manufacturing steps, and the resulting bond is strong and uniform.