An ink cartridge arrangement includes an ink cartridge including an ink chamber, and an ink cartridge packaging system. Since the display luminance considered to be appropriate differs depending on a user, the image display device includes a display unit operating according to a display luminance calculated based on the surrounding illuminance. The reamer bit can further comprise a pilot bit. The original shape of the shape memory polymer is recovered to create a first set of wrinkles in the rigid film layer. The tracking device is capable of detecting a first set and a second set of parameters associated with the fluorescent ball. Procedures are also provided for determining the number of channels and slots required to optimize a receiver directed broadcast schedule for a neighborhood of a given number of nodes.