Abstract: There is provided a process for producing a concentrated solution of quaternary ammonium hydroxide which is characterized in that quaternary ammonium hydroxide in a form of water-containing crystals or of an aqueous solution is mixed with a water-soluble organic solvent selected from the group consisting of glycol ether, glycol and triol and the resulting mixed solution is subjected to a thin-film distillation in vacuo so as to evaporate the low boiling material. In accordance with this process, a concentrated solution of quaternary ammonium hydroxide having low water content is able to be easily produced.

Abstract: An air-conditioning system allows adjustment of the vented air temperature of a rear seat evaporator. An electronic control system judges whether the surface of the rear seat evaporator is frosting up when 1) a target blowing rate of the rear seat blower is lower than a predetermined value, 2) a detected temperature of evaporator vented air is lower than a specified temperature TEa, and 3) a detected temperature of the outside air is lower than a specified temperature TAMa. A target temperature TEO is raised at this time, so that an electric motor of an electric compressor is stopped and refrigerant no longer flows into the rear seat evaporator. The surface temperature of the rear seat evaporator rises so that the rear seat evaporator can be defrosted.

Abstract: An object of the present invention is to provide a novel plant-derived pigment compound, which is a pigment compound represented by Formula II: (wherein R1 to R3 independently represent a hydroxyl group or an alkoxy group having 1 to 4 carbon atoms, and R4 and R5 independently represent a hydrogen atom, an acyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms). The compound is a yellow pigment extracted from the endosperm or the like of the rice cultivar “Hatsuyamabuki.

Abstract: There is provided a process for producing a concentrated solution of quaternary ammonium hydroxide which is characterized in that quaternary ammonium hydroxide in a form of water-containing crystals or of an aqueous solution is mixed with a water-soluble organic solvent selected from the group consisting of glycol ether, glycol and triol and the resulting mixed solution is subjected to a thin-film distillation in vacuo so as to evaporate the low boiling material. In accordance with this process, a concentrated solution of quaternary ammonium hydroxide having low water content is able to be easily produced.

Abstract: The present invention provides a novel intermediate for synthesizing vitamin D derivatives by using a less expensive material. That is, the present invention provides a compound which is synthesized by using carvone as a starting material and which is represented by the following formulae.

Abstract: A gas physical quantity detecting device is basically provided with detection element, a detection element chamber and a filter. The detection element is configured to detect a physical quantity of a gas flowing through a gas flow passage. The detection element chamber contains the detection element and configured to supply gas from inside the gas flow passage to the detection element. The filter is arranged between the gas flow passage and the detection element chamber. The filter has a predetermined thickness with the filter being made of a non-hydrophobic material.

Abstract: An air-conditioning system preventing the vented air temperature of a rear seat evaporator from not being able to be adjusted, wherein an electronic control system judges that the surface of the rear seat evaporator is frosting up when a target blowing rate of the rear seat blower is lower than a predetermined value, a detection temperature of an evaporator vented air temperature sensor is lower than TEa, and a detection temperature of the outside air temperature sensor is lower than TAMa; TEO is raised at this time, so an electric motor of an electric compressor is stopped; refrigerant no longer flows into the rear seat evaporator for this reason and the surface of the rear seat evaporator rises in temperature, so the rear seat evaporator can be defrosted; and even if the surface of the rear seat evaporator frosts, the rear seat evaporator 8 can be defrosted, so the vented air temperature of the rear seat evaporator can be prevented from not being able to be adjusted.

Abstract: The present invention provides a novel intermediate for synthesizing vitamin D derivatives by using a less expensive material. That is, the present invention provides a compound which is synthesized by using carvone as a starting material and which is represented by the following formulae.

Abstract: A motor vehicle air conditioner that is operative to cause the quantity of conditioned air to change smoothly when an air conditioner bypass passage is opened/closed. When a user switches a typical automotive air conditioner between a bi-level flow mode and a full outer-air mode, a warm-air bypass door does not stop at an intermediate position, thus causing both air quantity of conditioned air and blown-air temperature of conditioned air to change greatly. In the air conditioner of the present invention, the air conditioner warm-air bypass door stops once at an intermediate position, thus enabling the air quantity of the conditioned air and the temperature change in the blown-air to change gradually.

Abstract: A flame detector analyzer of the type wherein a sample gas is introduced into a flame formed by burning a fuel gas in presence of a combustion supporting gas, comprises a background providing device for supplying a background component gas capable of emitting a characteristic spectrum having the same wave length as that of the characteristic spectrum of a measuring object component contained in the sample gas, the light spectrums emitted from the measuring object component and the background component gas being received and treated to be detected, thereby increasing the measuring accuracy for the measuring object component and improving the resolving power at a low concentration detection region.

Abstract: A flame photometric detector analyzer comprises a first conduit through which a fuel gas flows, a fuel gas nozzle connected to the first conduit to be supplied with the fuel gas to form a flame at the tip thereof, a second conduit through which a combustion supporting gas is supplied to the vicinity of the tip of the fuel gas nozzle to assist the combustion of the fuel gas discharged from the nozzle, a third conduit through which a sample gas having a measuring object component is supplied to the flame, a device for controlling the concentration of oxygen contained in the combustion supporting gas to be supplied to the flame within a range from 11.5 to 16%, and a device responsive to photoemission from the measuring object component of the sample gas introduced into the flame, thereby decreasing the effect of interference substances to obtain high accuracy of measurement even though the measuring object is of considerably low concentration.