A method is disclosed for providing fault tolerance of an application over a Stream Control Transmission Protocol connection. The present invention also relates to modular structures like buildings produced using said structural members. Oxygen gas is introduced into the base fuel, which is heated, using a sparging process. The solar cell module of the present invention is provided with the back surface protective film for solar cell. The on-chip transformer includes: a multi-winding structure comprising first, second and third windings which are spatially separated from each other; and a guard ring surrounding the multi-winding structure; wherein the first and second windings function as a first transformer, and the second and third windings function as a second transformer. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed.