A compactor tooth has a replaceable wear tip mounted to a mounting block carried on the cylindrical exterior surface of a landfill-compactor wheel of a compactor machine. The high temperature wire comprises fiberglass, which surrounds the conductor. The information may include a persistent group intent field that identifies whether a device would prefer to join a persistent P2P network and allows a P2P network to advertise whether it is persistent. Heat treatment is conducted at a temperature higher than or equal to a strain point of a support substrate in an oxidation atmosphere containing halogen, so that a surface of a semiconductor substrate is covered with an insulating film. To ensure the highest possible quality of the detected image, an elongated concave mirror is provided, for focusing the stimulation light emitted by the individual radiation sources onto the phosphor layer.