Example techniques are disclosed for performing optical recognition of fish. The assembly comprises a plane antenna formed of a thin film based magnetic material, and a cover formed of metal material having shielding capability. To request creation of a group with the portable terminal B, the portable terminal A transmits a group request including the ID of the portable terminal B to a server while sending an invitation to the portable terminal B. Subsequently, a baking is performed on the SOG layer. The module can be assembled to the compressor of the engine, wherein the component is preassembled to the turbine disk, before the module is assembled to the compressor, by bolting to an attachment flange fixedly attached to the turbine disk. The larger section has polygonal cross sections corresponding to polygonal cross sections of the first section.