An internal combustion engine includes an in-cylinder injector injecting a fuel into a cylinder and an intake port injector injecting a fuel into an intake port. Memory optimization is realized by configuring the memory to a particular logic state; that is, restricting memory data storage to either logic \u201c0\u201d or \u201c1. It also relates to a method of enhancing the delivery to and distribution within a tumor mass of therapeutic viruses. Also, in some embodiments, the generated sub-network performs a set of two or more functions. The area cutting mechanism includes a second cutting unit configured to insert into the nick. , by advancing a transverse fixation pin along the transverse tunnel and into the transverse fixation pin hole in the graft ligament support block.