Abstract: This gas purifying process removes trace constituents from a mixed gas that includes a rare gas and nitrogen as main components, and at least one from among hydrogen, nitrogen and hydrogen reaction products, and water vapor as the trace constituent. This process sequentially carries out an adsorbing step for removing water vapor and nitrogen and hydrogen reaction products; a hydrogen oxidation step for converting the hydrogen into water vapor by means of a hydrogen oxidation catalytic reaction in the presence of oxygen; and a drying step for removing water vapor generated in the hydrogen oxidation step. When nitrogen oxides are included as a trace constituent, then a denitration step is carried out prior to the adsorbing step, to convert nitrogen oxides into nitrogen and water vapor by means of a catalytic denitration reaction in the presence of a reducing substance.

Abstract: This gas purifying process removes trace constituents from a mixed gas that includes a rare gas and nitrogen as main components, and at least one from among hydrogen, nitrogen and hydrogen reaction products, and water vapor as the trace constituent. This process sequentially carries out an adsorbing step for removing water vapor and nitrogen and hydrogen reaction products; a hydrogen oxidation step for converting the hydrogen into water vapor by means of a hydrogen oxidation catalytic reaction in the presence of oxygen; and a drying step for removing water vapor generated in the hydrogen oxidation step. When nitrogen oxides are included as a trace constituent, then a denitration step is carried out prior to the adsorbing step, to convert nitrogen oxides into nitrogen and water vapor by means of a catalytic denitration reaction in the presence of a reducing substance.

Abstract: This gas purifying process removes trace constituents from a mixed gas that includes a rare gas and nitrogen as main components, and at least one from among hydrogen, nitrogen and hydrogen reaction products, and water vapor as the trace constituent. This process sequentially carries out an adsorbing step for removing water vapor and nitrogen and hydrogen reaction products; a hydrogen oxidation step for converting the hydrogen into water vapor by means of a hydrogen oxidation catalytic reaction in the presence of oxygen; and a drying step for removing water vapor generated in the hydrogen oxidation step. When nitrogen oxides are included as a trace constituent, then a denitration step is carried out prior to the adsorbing step, to convert nitrogen oxides into nitrogen and water vapor by means of a catalytic denitration reaction in the presence of a reducing substance.

Abstract: The object of the present invention is to provide a hydrogen gas sensor that may suffer less influences from the environmental space as well as exercise less influence to the environmental space. The hydrogen gas sensor 10 comprises a first electrode 12 and a second electrode 14 are provided, and an electrolyte 16 disposed between the first electrode 12 and the second electrode 14. The first electrode and the second electrode are made of corresponding different materials in chemical potential for hydrogen gas. That is, the first electrode includes a relatively high chemical potential material, and the second electrode includes a relatively low chemical potential material. The hydrogen gas sensor detects hydrogen gas based on the electromotive force generated between these electrodes and, at least a contacting portion of the electrolyte with the first electrode and a contacting portion of the electrolyte with the second electrode are covered with a hydrogen selective permeable envelope 20.

Abstract: This gas purifying process removes trace constituents from a mixed gas that includes a rare gas and nitrogen as main components, and at least one from among hydrogen, nitrogen and hydrogen reaction products, and water vapor as the trace constituent. This process sequentially carries out an adsorbing step for removing water vapor and nitrogen and hydrogen reaction products; a hydrogen oxidation step for converting the hydrogen into water vapor by means of a hydrogen oxidation catalytic reaction in the presence of oxygen; and a drying step for removing water vapor generated in the hydrogen oxidation step. When nitrogen oxides are included as a trace constituent, then a denitration step is carried out prior to the adsorbing step, to convert nitrogen oxides into nitrogen and water vapor by means of a catalytic denitration reaction in the presence of a reducing substance.

Abstract: The present invention is disclosed to provide a heat insulating container constructed to avoid the deterioration of an appearance or to prevent the noisy sound from occurring by the scraps generated in the course of welding. An inner casing is arranged in an outer casing so as to maintain a space therebetween, the inner casing and the outer casing being joined by welding and a scrap movement blocking member is provided at least one of the inner and outer casings for preventing the scraps generated in the process of welding moving into the space.

Abstract: A transparent insulated container is provided which has a simple structure, which has superior temperature maintaining properties, and is transparent such that the contents housed within the insulated container can be visually checked from the sides.The transparent insulated container has a double-walled structure in which inner and outer containers formed from a transparent material such as glass or synthetic resin, are arranged so that a space is formed therebetween, and are made into a single body by joining the rims of their respective mouths and. A thermal radiation preventing layer through which visible rays can pass is formed on at least one of outer surface of inner container and inner surface of outer container which are on opposite sides of and face onto the space.

Abstract: The present invention relates to a cold-hot storage box which can be used as a constant temperature box, a refrigerator for household use, or a freezer, and to a manufacturing method therefor. The cold-hot box of the present invention being characterized by the provision of an insulating container comprising a space of a double walled container made from an inner container and an outer container, enclosing at least one gas having low thermal conductivity selected from the group consisting of xenon, krypton, and argon.

Abstract: A thermally insulated cooking device, including an insulated container, a cooking spot suspended inside the insulated cooking container, an insulated outer lid which closes off an upper opening of the insulated container, and an inner lid for closing off an upper opening of the cooking pot. Further included is a heat retaining material that can be heated by microwaves, which is removably attached to an inner face of the insulated outer lid. By attaching the heat retaining material, after it has been heated in a microwave oven, a temperature drop inside the insulated container can be substantially and safely prevented since heat radiates from the heat retaining material into the insulated container. Moreover the heat retaining material can be safely handled.

Abstract: A method and device are adapted for detecting and controlling the flexure of a flat ring blade member of a slicing machine in which a workpiece is placed in the blade member, and a relative movement is rendered between the blade member being rotated and a workpiece in a radial direction of the blade member to produce a wafer of the workpiece. An axial load acting between the workpiece and the blade member is detected. A flexure amount of the blade member is calculated on the basis of the axial load detected. The flexure of the blade member is corrected on the basis of the flexure amount calculated.