Abstract: Provided are a lighting device in which adjacent lighting appliances appears continuous with inconspicuous joint therebetween, and a method for constructing a building. Each of a first lighting appliance and a second lighting appliance includes a lighting appliance body including a chassis, and a plurality of light sources, a fitting adapter disposed on the rear surface of the chassis, the fitting adapter being fitted into a mounting hole formed in a building material, and a light-transmissive cover. The first lighting appliance and the second lighting appliance are arranged adjacent to each other with respective corresponding ones of the lateral surface portions abutting against each other, The first lighting appliance includes a first coupling member disposed on the rear surface of the chassis, and the second lighting appliance includes a second coupling member disposed on the rear surface of the chassis.

Abstract: The present disclosure provides a method of mounting a lighting appliance that can be easily attached to a building material, a mounting structure for a lighting appliance, a lighting appliance, and a method of constructing a building. An electrical cable of a power supply unit disposed at a position that does not overlap a mounting hole on a rear side of a building material is passed through an inner opening of an annular mounting bracket, and a power supply side connector provided at an end portion of the electrical cable is positioned on a front side of the building material. The power supply side connector is connected to a lighting appliance side connector fixed to an upper surface of a fitting adapter provided on a rear surface of a lighting appliance body on a side opposite to a light emitting surface.

Abstract: A lighting fixture assembly for mounting to a structural body includes a mounting plate and a lighting fixture. The mounting plate has a lower side surface configured to receive the light fixture, and an upper side surface configured to mount to the structural body. The mounting plate has a recessed portion formed in a center portion of the mounting plate and extends longitudinally along the mounting plate. The recessed portion has a depth when viewed from the lower side surface of the mounting plate in a thickness direction. The lighting fixture comprises a chassis configured to be fixed to the mounting plate and one or more light sources mounted on the chassis. The depth of the recessed portion is equal to or less than a distance between an outer surface of the cover and an upper side surface of the chassis when viewed in the thickness direction.

Abstract: A light fixture assembly for mounting on a mounting surface of a building material includes: a light fixture. The light fixture comprises a main body comprising a back side surface and a light transmissive side surface opposing the back side surface. The main body has a first dimension from a first lateral edge to a second lateral edge opposing the first lateral edge that is greater than a second dimension from the back side surface to the light transmissive side surface. The assembly further includes a mounting adapter provided at the back side surface, and a plate spring provided at the back side surface and extending along a first direction from the first lateral edge to the second lateral edge. The plate spring is configured to apply a restoring force to the first lateral edge and the second lateral edge.

Abstract: Provided are a lighting device in which adjacent lighting appliances appears continuous with inconspicuous joint therebetween, and a method for constructing a building. Each of a first lighting appliance and a second lighting appliance includes a lighting appliance body including a chassis, and a plurality of light sources, a fitting adapter disposed on the rear surface of the chassis, the fitting adapter being fitted into a mounting hole formed in a building material, and a light-transmissive cover. The first lighting appliance and the second lighting appliance are arranged adjacent to each other with respective corresponding ones of the lateral surface portions abutting against each other, The first lighting appliance includes a first coupling member disposed on the rear surface of the chassis, and the second lighting appliance includes a second coupling member disposed on the rear surface of the chassis.

Abstract: The present disclosure provides a method of mounting a lighting appliance that can be easily attached to a building material, a mounting structure for a lighting appliance, a lighting appliance, and a method of constructing a building. An electrical cable of a power supply unit disposed at a position that does not overlap a mounting hole on a rear side of a building material is passed through an inner opening of an annular mounting bracket, and a power supply side connector provided at an end portion of the electrical cable is positioned on a front side of the building material. The power supply side connector is connected to a lighting appliance side connector fixed to an upper surface of a fitting adapter provided on a rear surface of a lighting appliance body on a side opposite to a light emitting surface.

Abstract: A lighting fixture assembly for mounting to a structural body includes a mounting plate and a lighting fixture. The mounting plate has a lower side surface configured to receive the light fixture, and an upper side surface configured to mount to the structural body. The mounting plate has a recessed portion formed in a center portion of the mounting plate and extends longitudinally along the mounting plate. The recessed portion has a depth when viewed from the lower side surface of the mounting plate in a thickness direction. The lighting fixture comprises a chassis configured to be fixed to the mounting plate and one or more light sources mounted on the chassis. The depth of the recessed portion is equal to or less than a distance between an outer surface of the cover and an upper side surface of the chassis when viewed in the thickness direction.

Abstract: A lighting fixture includes a light source module having a base with a surface having first and second lateral edges, and a plurality of light sources disposed on the surface of the base. A cover disposed over the light source module includes a light-transmissive main surface terminating at third and fourth lateral edges. A first light-transmissive side surface extends from the third lateral edge towards the first lateral edge, and a second light-transmissive side surface extends from the fourth lateral edge towards the second lateral edge. The first lateral edge is laterally offset by a first distance from a first orthogonal reference plane with respect to the third lateral edge, and the second lateral edge is laterally offset by a second distance from a second orthogonal reference plane with respect to the fourth lateral edge.

Abstract: A light fixture assembly for mounting on a mounting surface of a building material includes: a light fixture. The light fixture comprises a main body comprising a back side surface and a light transmissive side surface opposing the back side surface. The main body has a first dimension from a first lateral edge to a second lateral edge opposing the first lateral edge that is greater than a second dimension from the back side surface to the light transmissive side surface. The assembly further includes a mounting adapter provided at the back side surface, and a plate spring provided at the back side surface and extending along a first direction from the first lateral edge to the second lateral edge. The plate spring is configured to apply a restoring force to the first lateral edge and the second lateral edge.

Abstract: A light fixture assembly for mounting on a mounting surface of a building material includes: a light fixture. The light fixture comprises a main body comprising a back side surface and a light transmissive side surface opposing the back side surface. The main body has a first dimension from a first lateral edge to a second lateral edge opposing the first lateral edge that is greater than a second dimension from the back side surface to the light transmissive side surface. The assembly further includes a mounting adapter provided at the back side surface, and a plate spring provided at the back side surface and extending along a first direction from the first lateral edge to the second lateral edge. The plate spring is configured to apply a restoring force to the first lateral edge and the second lateral edge.

Abstract: A light fixture assembly for mounting on a mounting surface of a building material includes: a light fixture. The light fixture comprises a main body comprising a back side surface and a light transmissive side surface opposing the back side surface. The main body has a first dimension from a first lateral edge to a second lateral edge opposing the first lateral edge that is greater than a second dimension from the back side surface to the light transmissive side surface. The assembly further includes a mounting adapter provided at the back side surface, and a plate spring provided at the back side surface and extending along a first direction from the first lateral edge to the second lateral edge. The plate spring is configured to apply a restoring force to the first lateral edge and the second lateral edge.

Abstract: A lighting fixture includes a light source module having a base with a surface having first and second lateral edges, and a plurality of light sources disposed on the surface of the base. A cover disposed over the light source module includes a light-transmissive main surface terminating at third and fourth lateral edges. A first light-transmissive side surface extends from the third lateral edge towards the first lateral edge, and a second light-transmissive side surface extends from the fourth lateral edge towards the second lateral edge. The first lateral edge is laterally offset by a first distance from a first orthogonal reference plane with respect to the third lateral edge, and the second lateral edge is laterally offset by a second distance from a second orthogonal reference plane with respect to the fourth lateral edge.

Abstract: To provide a method of producing a strengthened alloy capable of shortening the time necessary for aging treatment and obtaining a strengthened alloy with enhanced tensile strength. The method of producing a strengthened alloy comprises a solution treatment step S1 of immersing an alloy material into molten lithium held at a solution treatment temperature higher than solution temperature of solute metal of the alloy material, a solution stop step S2 of immersing the alloy material into molten lithium held at a cooling temperature lower than the solution treatment temperature after the solution treatment step S1, an aging treatment step S3 of immersing the alloy material into molten lithium held at an aging treatment temperature lower than the solution temperature after the solution stop step S2, and an aging stop step S4 of immersing the alloy material into molten lithium held at an aging stop temperature lower than the aging treatment temperature after the aging treatment step S3.

Abstract: A method of heat-treating solid alloy material. Solid alloy material is immersed in liquid lithium at a temperature higher than the solid solution temperature and lower than the melting point of the solid alloy material in an initial heating tank. Then, the solid alloy material is held there until the solid alloy material becomes solid solution. Then, the solid alloy material is immersed in liquid lithium at a temperature lower than the solid solution temperature in a cooling tank. Thus, supersaturated solid solution is obtained. Then, the solid alloy material is re-heated at an aging temperature higher than room temperature.

Abstract: An apparatus for processing nonferrous metal alloy includes a first liquid metal sodium tub, a second liquid metal sodium tub, and a carrier. The first liquid metal sodium tub stores liquid metal sodium at about 450° C., and heats the nonferrous metal alloy rapidly to put the nonferrous metal alloy in a solid solution state. The second liquid metal sodium tub stores liquid metal sodium at about 120° C., and cools the nonferrous metal alloy rapidly to suppress growth of a Guinier-Preston (G-P) zone in the nonferrous metal alloy while in the solid solution state. The carrier, such as a guide roller, carries the nonferrous metal alloy from the first liquid metal sodium tub to the second liquid metal sodium tub. Crystal structures in the nonferrous metal alloy can be miniaturized while preserving grating defects generated in crystal structures of the nonferrous metal alloy.

Abstract: A processing apparatus forms a metallic material such as steel. The apparatus includes a heating tub, spray nozzles, a cooling tub, and a circulator. The heating tub heats the steel to equal to or higher than the modification point of the steel. The spray nozzles cool the steel processed by the heating tub to lower than the modification point, by contacting liquid metal sodium onto the steel. The cooling tub stores the liquid metal sodium, soaks the steel processed by the spray nozzles, and cools the steel. The circulator 20 circulates the liquid metal sodium so that the liquid metal sodium flows in the same direction as the steel in the cooling tub 3.

Abstract: An apparatus for quenching a metallic material such as steel is provided. The apparatus includes a heating furnace, a liquid metal sodium chamber, a gas cooling chamber, and a liquid metal sodium removal chamber. The heating furnace heats the metallic material to more than 700° C. The liquid metal sodium chamber includes liquid metal sodium, and the metallic material is cooled approximately to between 100° C. and 250° C. The inert gas chamber includes inert gas such as nitrogen or argon, and the metallic material is cooled approximately to room temperature. In the liquid metal sodium removal chamber, the liquid metal sodium remaining on the metallic materials is removed by using vapor, mist, and water.

Abstract: An apparatus for quenching a metallic material such as steel is provided. The apparatus includes a heating furnace, a liquid metal sodium chamber, a gas cooling chamber, and a liquid metal sodium removal chamber. The heating furnace heats the metallic material to more than 700° C. The liquid metal sodium chamber includes liquid metal sodium, and the metallic material is cooled approximately to between 100° C. and 250° C. The inert gas chamber includes inert gas such as nitrogen or argon, and the metallic material is cooled approximately to room temperature. In the liquid metal sodium removal chamber, the liquid metal sodium remaining on the metallic materials is removed by using vapor, mist, and water.

Abstract: A cross piping for a header in a boiling water reactor has a main pipe coaxially connected to a center branch pipe at a cross portion. A plurality of transversely extending branch pipes also connect to this cross portion. The cross portion has a reduced diameter with respect to the main distributor pipe. In one embodiment, the cross portion is in the shape of a hemisphere having a radius equal to that of the main distributor pipe, the center of the hemispherical surface being positioned adjacent an upstream intersection of the main distributor pipe axis and an extension of the circumferential surfaces of the branch pipes. In another embodiment, the cross portion has a throttle portion which is either a flat surface or a curved surface.

Abstract: A unit for measuring the alkali metal vapor concentration of a gaseous phase, comprisinga gas inlet pipe,a container provided with a heating means for vaporizing the alkali metal mist contained in the gas, and a .beta.-alumina sensor serving to measure the alkali metal vapor concentration,a vapor trap connected to the container via a gas conduit and serving to condense and remove the alkali metal vapor contained in the gas,a gas pump having the suction port connected to the vapor trap via a gas conduit, anda gas discharge pipe connected to the discharge port of the gas pump.The unit can be mounted anywhere and is easy to handle and operate.