A recording paper coated or impregnated with a sizing agent containing a water-soluble soybean polysaccharide as an indispensable component, and optionally a cationic polymer and a surfactant, preferably a nonionic surfactant having HLB of 5-15. The CPP sensor includes an AP pinned layer structure, a free layer and a spacer layer which is located between the free layer and the AP pinned layer structure. in a controlled auto-ignition engine, including in-situ evaluation of thickness of CCD, based on a sensor which monitors combustion. A discharge passage intersects the vertical passages and receives fluid pressurized by the plungers via discharge valves and ports such from the fluid end. In operation, the controller enables the frequency scan function by decoupling the switch, tuning the transmitter RF signal to plural frequencies, which causes the demodulator to receive plural receive frequencies within the radio band. A data information storage stores identification information of data for which a policy is set in correlation with the data and identification information of the policy attached to the data, and information for identifying that the data is the derived data.