A water craft having a bow and a stern including an engine of sufficient thrust to create an enlarged wake at the stern of the boat as the boat moves along the surface of a body of water. Since the internal resistance related value is a value related to the internal resistance which closely depends on the battery condition, the battery condition can be judged in detail based on the above relation. The invention defines a process that may use a single label to carry out parallel comparison of multiple gene expression samples. The query-based source code then may be converted to intermediary source code in a common programming language and then compiled into a dynamic link library or other type of executable. After the completed set has vacated the gathering station, the diverted sheet is transported to the gathering station and gathered with further documents of the next set.