A juice extractor includes a vessel having an internally threaded sidewall, a juice-extracting dome positioned within the vessel, a plunger attached threadedly to the vessel sidewall for pressing fruit against the dome when a plunger is rotated, and a spout extending from the vessel through which juice extract from the fruit can pass to an external receptacle. One transmitter is connected by a passageway with the annular clearance between the cartridge of the insert assembly and the valve body. When the ammonia stores are not heated, the system is below ambient pressure and any leak will cause external gas to enter the system. Both CVD and ALD methods may be employed. A power supply circuit calculates the total number of pixels that are turned on using ONOFF data RD that stipulates the ONOFF state of the pixels 1400 and controls the output impedance of a power supply voltage that is transmitted to a display panel, so that the output impedance becomes lower as the calculated total number of the pixels increases. At least one propagation property associated with the detected shear waves is determined, and the determined at least one propagation property is displayed.