An improved method and a skid member for minimizing the temperature difference between a skid-contacting region and other regions in a hot material to be heated such as a slab or billet within a reheating furnace and a skid apparatus using the same. The sensor includes one or more optical fibers and a diaphragm disposed near one end of at least one of the one or more optical fibers. Based on the labels associated with the data objects, the associated policies are dispatched to policy decision engines to take one or more actions to enforce the policy. The page data from memory is used to control the content of displayed teletext images.