Abstract: A strain detector 1 includes: a metal plate 4 that is fixed to a first end 210 of a first tube 21 and a second end 220 of a second tube 22 while the metal plate 4 straddles a weld 3 between the first end 210 and the second end 220, the first tube 21 and the second tube 22 forming part of a boiler tube 2; and an optical fiber 5 that is fixed to a top of the metal plate 4 and that extends in an axial direction (a first direction D1) of the first tube 21 and the second tube 22. In this manner, the metal plate 4 is fixed to the first tube 21 and the second tube 22 while straddling the weld 3, and the optical fiber 5 is fixed to the top of the metal plate 4, which enables the strain detector 1 to accurately detect a strain in the weld 3 of the boiler tube 2.

Abstract: Provided is a combustion system using a catalyst having better denitration efficiency at low temperatures, during a selective catalytic reduction reaction in which ammonia is used as a reducing agent. This combustion system comprises: a combustion device that combusts fuel; an exhaust path through which flows exhaust gas generated from the combustion of fuel in the combustion device; a dust collection device that is arranged on the exhaust path and collects ash dust/dust in the exhaust gas; and a denitration device that is arranged on the exhaust path and removes nitrogen oxides from the exhaust gas by means of a denitration catalyst, wherein the denitration device is arranged downstream of the dust collection device on the exhaust path, and the denitration catalyst contains vanadium oxide including vanadium pentoxide and has a defect site in which an oxygen atom is deficient in a crystal structure of the vanadium pentoxide.

Abstract: A hydrogen-containing water generator includes a cathode portion of cylindrical shape that has a plurality of openings in a side thereof, an anode portion of cylindrical shape that is provided radially outside the cathode portion and has a plurality of openings in a side thereof, an electrolytic vessel that is transparent, has a cylindrical shape, and is internally provided with the cathode portion and the anode portion, a water supply part that supplies water into the cathode portion from one end side of the cathode portion; and a drain part that drains water inside the electrolytic vessel from the other end side of the cathode portion.

Abstract: The present invention provides methods of stopping a larva of a sessile invertebrate in a settlement stage from swimming or crawling in water, by means of irradiating violet light having a wavelength range of 400 to 550 nm to the larva in the settlement stage of the sessile invertebrate.

Abstract: An object of the present invention is to provide a phosphorus adsorbent that is inexpensive and can exert high phosphorus adsorption performance. The present invention relates to a phosphorus adsorbent comprising incinerator ash, cement, and lanthanum.

Abstract: According to an aspect, an information processing device includes: a receiver configured to receive information related to a plurality of smart meters; a controller configured to determine presence or absence of an anomaly in each of the smart meters based on a reception status of the information from each of the smart meters; and an output unit configured to output information indicating presence or absence of an anomaly in each of the smart meters. The receiver receives the information from the smart meters in a cycle of a first predetermined time. The controller determines that an anomaly is occurring in a smart meter from which information has not been obtained for a second predetermined time that is longer than the first predetermined time. The second predetermined time is n times as long as the first predetermined time, and n is equal to or greater than 2.

Abstract: Provided is a combustion system using a catalyst having better denitration efficiency at low temperatures, during a selective catalytic reduction reaction in which ammonia is used as a reducing agent. This combustion system comprises: a combustion device that combusts fuel; an exhaust path through which flows exhaust gas generated from the combustion of fuel in the combustion device; a dust collection device that is arranged on the exhaust path and collects soot/dust in the exhaust gas; and a denitration device that is arranged on the exhaust path and removes nitrogen oxides from the exhaust gas by means of a denitration catalyst, wherein the denitration device is arranged downstream of the dust collection device on the exhaust path, and the denitration catalyst contains vanadium oxide, has a carbon content of 0.05 wt % or more, and has a defect site in which oxygen deficiency occurs in a crystal structure.

Abstract: A heat transfer tube includes: an outer tube; an inner tube inserted into the outer tube so as to be in close contact with the outer tube, to form a double tube with the outer tube; an insertion hole formed, between an outer circumferential surface of the outer tube and an inner circumferential surface of the inner tube, penetrating in a longitudinal direction of the outer tube and the inner tube; and an insertion tube inserted into the insertion hole The insertion tube allows an optical fiber to be inserted into the insertion tube to measure a surface temperature of the double tube.

Abstract: A precipitation-strengthened cast product welding repair method is a method of repairing a damaged portion of a precipitation-strengthened cast product. The method includes: forming a first weld layer on a surface of the damaged portion by micro tungsten inert gas (TIG) welding using a solid-solution-strengthened welding material having higher toughness than the cast product; and forming a second weld layer on the first weld layer by building up the second weld layer by laser welding using a dual multi-phase nanostructure intermetallic compound as a welding material and being higher in heat supply rate than the micro TIG welding.

Abstract: A precipitation-strengthened cast product welding repair method repairs a damaged portion of a precipitation-strengthened cast product. The method includes welding the damaged portion by micro tungsten inert gas (TIG) welding using a welding material containing a solid-solution-strengthened alloy and having higher toughness than the precipitation-strengthened cast product.

Abstract: The present invention provides a method of stopping larvae of sessile invertebrates in the settlement stage from swimming or crawling in water, by irradiating light comprising the spectrum of 409 to 412 nm and a part of 400 to 440 nm, to the larvae in the settlement stage.

Abstract: The present invention is a method of preventing settlement of a sessile organism on a structure in water, including irradiating light comprising the spectrum of 409 to 412 nm to the structure where settlement of the sessile organism is prevented.

Abstract: The present invention provides a method of suppressing larvae of barnacles in the settlement stage from settling on a substrate in water by irradiating light comprising the spectrum of 409 to 412 nm and a part of 400 to 460 nm to larvae of barnacles in the settlement stage in a direction from the substrate to the larvae of barnacles in the settlement stage.

Abstract: The present invention provides a method of killing larvae of sessile invertebrates in the settlement stage in water, comprising the step of irradiating light comprising the spectrum of 409 to 412 nm, to the larvae in the settlement stage.

Abstract: A hydrogen-containing water generator includes a cathode portion of cylindrical shape that has a plurality of openings in a side thereof, an anode portion of cylindrical shape that is provided radially outside the cathode portion and has a plurality of openings in a side thereof, an electrolytic vessel that is transparent, has a cylindrical shape, and is internally provided with the cathode portion and the anode portion, a water supply part that supplies water into the cathode portion from one end side of the cathode portion; and a drain part that drains water inside the electrolytic vessel from the other end side of the cathode portion.

Abstract: According to an aspect, an information processing device includes: a receiver configured to receive information related to a plurality of smart meters; a controller configured to determine presence or absence of an anomaly in each of the smart meters based on a reception status of the information from each of the smart meters; and an output unit configured to output information indicating presence or absence of an anomaly in each of the smart meters. The receiver receives the information from the smart meters in a cycle of a first predetermined time. The controller determines that an anomaly is occurring in a smart meter from which information has not been obtained for a second predetermined time that is longer than the first predetermined time.

Abstract: A combustion system operated at low cost is provided. A combustion system 1 includes a combustion device 10 that burns fuel, an exhaust line L1 through which exhaust gas flows, the exhaust gas being generated through combustion of the fuel in the combustion device 10, an air preheater 30 that is disposed in the exhaust line L1 and that recovers heat from the exhaust gas, and a denitration device 40 that is disposed in the exhaust line L1 and that removes nitrogen oxide from the exhaust gas using a denitration catalyst. The denitration device 40 is disposed downstream from the air preheater 30 in the exhaust line L1, and the denitration catalyst contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m2/g or more.

Abstract: There is provided a method for recycling a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A method for recycling a denitration catalyst includes a step of spraying an aqueous solution with a pH of 7 or more onto a used denitration catalyst while the denitration catalyst is set in a denitration device to remove a surface of the denitration catalyst. The denitration catalyst contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m2/g or more. The denitration catalyst after recycling is used for denitration at 200° C. or lower.

Abstract: There is provided a method for recycling a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A method for recycling a denitration catalyst includes a step of removing a used denitration catalyst from a denitration device and then coating the used denitration catalyst with a catalyst component. The catalyst component contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m2/g or more, and the denitration catalyst after recycling is used for denitration at 200° C. or lower.

Abstract: There is provided a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A denitration catalyst is obtained by coating a substrate with a catalyst component. The catalyst component contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m2/g or more. The denitration catalyst is used for denitration at 200° C. or lower.