When a periodic pattern is not included in image data 210, a prediction error encoding unit 204 outputs the variable-length code of a prediction error quantization value 214 generated by prediction encoding as compressed data 215. The data processing system includes a filtering module to receive a request for a service from the service requester, and a ticket module to create a ticket. Timestamp values contained in timing-related messages in some packets are written or modified by the PHY. The first air current generation mechanism generates a first air current from air drawn in from the outside of a vehicle body. A retainer ring is mounted in an associated groove in the base over the heads of the screws to prevent unintentional unfastening of the screws from the die member. The solid synthetic coal component has a low ash content and may be used as a carbon source for energy production, such as for combustive thermal energy generation, or for gassification for the production of synthesis gas.