Abstract: An electrolytic cell capable of simply electrolyzing carbon dioxide into carbon monoxide and oxygen with low activation energy, and an electrolytic device. The carbon dioxide electrolytic cell includes a cathode, an anode, and a solid electrolyte having oxide ion conductivity. The cathode is the following (A) or (B); (A) a metal and a first mayenite-type compound are included therein or (B) a metal and a second mayenite-type compound are included therein, said second mayenite type compound including a mayenite type compound having electron conductivity.

Abstract: An outer mirror and a vehicle interphone are provided for transmitting a sound to the outside from a vehicle cabin and vice versa. Sound outside the vehicle cabin is transmitted to the cabin from a microphone-loudspeaker provided in a visor cover of the outer mirror. The microphone-loudspeaker is supported on a frame having higher rigidity than the visor cover, which is mounted to a vehicle body via an electric accommodating unit and a door mirror base to promote shock resistance. The visor cover includes a sound-conducting opening in its bottom portion, and the microphone-loudspeaker is made waterproof to promote weather resistance.

Abstract: A rear-view mirror for a vehicle. The rear-view mirror has a mirrow body at which is formed an accommodating member. A lamp house containing a lamp bulb and a secondary battery is accommodated in the accommodating member by holders for holding the lamp house from below. The lamp house is pulled out from the accommodating member to illuminate a desired position.

Abstract: Disclosed are an outer mirror and a vehicle interphone having a function of transmitting a sound to the outside from a vehicle cabin or inputting a sound outside of the cabin, and having physical durability. The sound in the cabin is transmitted from a microphone-loudspeaker provided in a visor cover of the outer mirror. The sound near the visor cover, which is received by the microphone-loudspeaker, is emitted in the cabin. The microphone-loudspeaker is supported on a frame having higher rigidity than the visor cover, which is mounted to a vehicle body via an electric accommodating unit and a door mirror base.

Abstract: A rear-view mirror for a vehicle. The rear-view mirror has a mirror body at which is formed an accommodating member. A lamp house containing a lamp bulb and a secondary battery is accommodated in the accommodating member by holders for holding the lamp house from below. The lamp house is pulled out from the accommodating member to illuminate a desired position.

Abstract: A method and apparatus for detecting a peak value of a waveform signal continuously inputted during a predetermined time period.

Abstract: A method for fast Fourier transforming data in large quantities stored in an external storage at a high speed is disclosed. In the method, data stored in the external storage is supposed that the data consists of data elements of N1 rows and N2 columns. And the data is read out from the external storage along the column direction, transferred to the processor, fast Fourier transformed, and returned to the external storage. Then, the data is read out from the external storage along the row direction, transferred to the processor, fast Fourier transformed, and returned to the external storage. Bit reversal of data elements and transposition are done in the appropriate step of the procedure.

Abstract: A wheel cap mounting apparatus for mounting a wheel cap on a disk wheel includes a retainer to be fixedly mounted on the disk wheel, and a bolt for holding the wheel cap to the retainer. The retainer includes a body portion having a throughhole and a nut embedded in the body portion by molding. The threaded hole in the nut aligns with the throughhole in the body portion. A small-diametered insert section is connected to the body portion and adapted to be inserted into an opening formed in the disk wheel. The small-diametered insert section has a hole formed therethrough, which is in alignment with the throughhole formed in the body portion. The retainer further has claws formed integrally with the small-diametered insert section such that the claws project radially outwardly from the small-diametered insert section.

Abstract: A wheel cover mounting which comprises a wheel cover having its back face formed with a plurality of receptacles positioned adjacent the periphery thereof, and a resilient retaining member for each receptacle inserted at one end thereof into the respective receptacle in a direction axially of the wheel. The other end of the resilient retaining member protrudes outwards from the receptacle and is adapted to be press-fitted into a space which is defined between a lateral wall of a wheel disc lying generally axially of the wheel and a lateral wall of a wheel rim lying generally axially of the wheel for detachably fitting the wheel cover to the wheel. The resilient retaining member is constituted by a metallic leaf spring and the outwardly protruding end has a pair of upturned spring catches extending in the opposite directions away from each other so as to represent a generally W-shaped configuration.