Abstract: Provided is a collagen production promoter comprising, as an active ingredient, a triglyceride represented by the following formula (I), wherein R1, R2 and R3 each denotes a saturated fatty acid residue, at least one of which is a pentadecanoic acid residue. The triglyceride comprising the pentadecanoic acid promotes the production of skin fibroblasts and collagen, and can be used as a topical skin care composition and a beauty food or beverage for improving the condition of skin.

Abstract: Provided is a liquid level measuring technique capable of measuring a liquid level with high accuracy even if a liquid stored in a container is boiling.

Abstract: Provided is a apparatus for sensing a liquid level reliably based solely on an analog process even if a liquid held in a container boils, causing the liquid level to fall.

Abstract: A water filling system for a reactor water level gauge is provided for filling a reactor water level gauge instrumentation pipe in a reactor building with water and filling the reactor water level gauge with water even in an unexpected abnormal event where the reactor building is brought into a highly radioactive environment. The water filling system for a reactor water level gauge includes a water filling instrumentation pipe guided from the reactor water level gauge instrumentation pipe in the reactor building to an outside of the reactor building and filling the reactor water level gauge instrumentation pipe in the reactor building with water even in an unexpected abnormal event of a nuclear power plant.

Abstract: Provided is a apparatus for sensing a liquid level reliably based solely on an analog process even if a liquid held in a container boils, causing the liquid level to fall.

Abstract: Provided is a liquid level measuring technique capable of measuring a liquid level with high accuracy even if a liquid stored in a container is boiling.

Abstract: The water-level and temperature measurement apparatus 10 includes monitoring devices 121, - - - , 12n that receives n water-level information and n temperature information, measures n water-levels and n temperatures, and determines whether a water-level detection function and a temperature detection function in each channel are lost or not based on electrical physical quantities, by using water-level and temperature detection devices 111, 112, 113, 114 which includes a detection unit 20 to detect water-level information and temperature information from thermocouple and heater wire, and a calculation processing device 13 that obtains at least one water-level measurement result and at least one temperature measurement result by using n water-level measurement results, n temperature measurement results, water-level detection function loss determination result in each channel, and temperature detection function loss determination result in each channel.

Abstract: A reactor water level measurement system including: a condensation tank connected with a steam region of a pressure vessel; a reference pipe with one end connected with the condensation tank; fluctuation pipes with one end connected with the pressure vessel; pressure difference measurement type water gauges that detect the water head difference of the reference pipe and the fluctuation pipes and that are connected with the other ends of the reference pipe and the fluctuation pipes; non-pressure difference water gauges that detect the water level of the pressure vessel; and a computation device that selects a pressure difference type water gauge or a non-pressure difference type water gauge, in accordance with a condition of the containment vessel or of the pressure vessel and that indicates/records the water level of the pressure vessel based on the detection result of the selected water gauge.

Abstract: A water filling system for a reactor water level gauge is provided for filling a reactor water level gauge instrumentation pipe in a reactor building with water and filling the reactor water level gauge with water even in an unexpected abnormal event where the reactor building is brought into a highly radioactive environment. The water filling system for a reactor water level gauge includes a water filling instrumentation pipe guided from the reactor water level gauge instrumentation pipe in the reactor building to an outside of the reactor building and filling the reactor water level gauge instrumentation pipe in the reactor building with water even in an unexpected abnormal event of a nuclear power plant.