An integrated circuit memory device has an array of memory cells arranged in a plurality of rows and columns and a plurality of row lines and a plurality of column lines. The voltage comparator comprises a first input terminal for receiving a first reference voltage controlled by an external temperature of the power supply and a second input terminal for receiving a second reference voltage controlled by an interior temperature of the power supply. The head rear part has a screw-receiving hole that extends at a downward-rearward incline into a corresponding threaded hole at the front of the bar device. The propagation delay can provided by the distributed antenna systems to a network or other system to be taken into consideration for communications services or operations that are based on communications signal delay. The combination of a borate compound and fatty acid combination typically provide a synergistic effect compared to the additive result provided by the combination’s individual components. A scintillator protection film that covers a planar scintillator provided on a photoelectric conversion panel is brought into close contact with a scintillator and the photoelectric conversion panel by a planar member having a surface with an irregular shape, and an irregular shape is formed on the scintillator protection film along the irregular shape of the planar member.