An industrial vehicle includes a transmission, which is coupled to an engine by a torque converter. An alternative to a line protection scheme, as most current optical communication networks use, is to utilize a path protection technique in which working and protection paths that are desired are assigned during network setup. The transaction instrument may be, for example, an open pre-paid card. Results obtained using these techniques may be extended by performance analysis andor verification of sequential operations. In other methods, the slurry undergoes various types of processing to achieve certain desired composition or performance requirements. The other columns may be only partially visible, due to the overlapping arrangement.