An prosthesis for the repair of thoractic or abdominal aortic aneurysms and a method for utilizing the prosthesis. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. A column processing computation device computes a column processing output value by using the reliability information generated and saved in the reliability storage memory and a row processing output value. N is greater than or equal to S. In a second seat position, the second surface of the seat bottom faces substantially upward and the first surface of the seat bottom faces substantially downward.