An exemplary computer-implementable method includes providing a computer-generated object wherein the object has characteristics, emitting a computer-generated particle, determining if the particle interacts with the object and, if the particle interacts with the object, altering one or more of the characteristic of the object wherein the altering simulates weathering or aging of the object. The formula of the similarity value, the orthogonal transformation, and the inverse orthogonal transformation each have linearity. Both voltage pulses travel through the wire-configurable directional connector. Alternatively, fat from genetically related sources may be used, and the fat may be further processed prior to injection. The expense management system may further assign a ROC to an expense category. A display control portion obtains map images of the vicinity of the dispatch location from a map DB based on the position information, and displays these on a display with the display location in the center.