Abstract: As first-time laser irradiation is performed on a workpiece, an initial nugget is formed. By emitting a laser beam for the second time at the initial nugget, a diameter of a back-side nugget portion is increased. A nugget includes a front-side nugget portion formed in a first plate, the back-side nugget portion formed in a second plate, and an annular flat surface portion. The flat surface portion is along a boundary portion between the first plate and the second plate. In a thicknesswise cross section of the second plate, a tilt angle of a peripheral surface of the back-side nugget portion is increased as a thicknesswise position of the peripheral surface approximates to a rear face of the second plate.

Abstract: A reference block which is machined from a single body of material and is a single block with reference pins integral therewith is configured for use in a method of manufacturing a head suspension by laser-welding the flexure to the load beam at a first welding spot so that a tongue is pressed against a convex portion under predetermined load. The method includes steps of forming, before joining the flexure and load beam together, at least one positioning reference hole in each of the flexure and load beam within a circular range that is defined around the first welding spot with a radius equal to a distance between the first welding spot and the projection, laying the flexure and load beam one on another, inserting the reference pins of the reference pin block into the reference holes, and laser-welding the flexure and load beam to each other at the first welding spot.

Abstract: A basic unit portion configured by a standard unit and a variable unit portion whose shape is configured to be changeable. The basic unit portion includes: a first pressure tank with a first opening portion; a circuit breaker; a first bushing; a first disconnecting switch. The variable unit portion includes: a busbar; a second pressure tank with a second opening portion; a second bushing whose necessary number is disposed in accordance with the number of circuits to be externally connected; and second disconnecting switches which are arranged between the busbar and the second bushing. The first opening portion of the basic unit portion and the second opening portion of the variable unit portion are joined facing each other to form into a constitutional body.

Abstract: Before bonding abrasive grain to a core wire, a palladium coating is applied to the surface of the abrasive grain. The palladium coating is formed as a sea on the surface of the diamond grains. In other words, the palladium coating covers the surface of the diamond grains so that the entirety thereof is continuous. Moreover, the palladium coating does not completely cover the diamond grains, and a diamond exposed portion is provided by the palladium coating not being applied on a portion thereof. The exposed diamond portion is formed as an island on the surface of the abrasive grain. In other words, a plurality of diamond exposed portions are formed as islands separated from each other.

Abstract: A power switchgear includes: a vacuum switch tube in a ground tank; a movable side conductor which passes through the ground tank to connect to one side of the vacuum switch tube, and extends to the upper side of the tank; a fixed side conductor which passes through the ground tank and connects to another side of the vacuum switch tube, and extends to the upper side of the tank. A conical insulator is placed on an opening of the ground tank, and a tip end is inserted in the ground tank; an insulation cylinder is placed at a rear end of the conical insulator to cover the inside of a concave portion of the conical insulator, and protrudes outside the ground tank; and a surge suppression apparatus inside the insulation cylinder has a terminal in the conical insulator and connected to a main circuit of the vacuum switch tube.

Abstract: A vacuum circuit breaker includes a tank containing an electrical device. An opening corresponds to a terminal of the electrical device. A porcelain tube protruding from the tank is fixed to an opening base, and has a terminal conductor. A first connection conductor in the porcelain tube is connected to the terminal conductor. A second connection conductor is arranged in the porcelain tube. A third connection conductor is arranged between the first and the second connection conductor, has a closed end concave section fitted onto the first connection conductor and is connected to the second connection conductor by a fastener. A contact is disposed between said first connection conductor and the third connection conductor. The third and second connection conductors are made of a solid conductor. A center of the third connection conductor and a center of the second connection conductor are formed with a threaded section.

Abstract: Provided is a wiring thin plate capable of securely hold-down the wiring thin plate around a scheduled portion to be a welded spot even if the wiring thin plate is downsized and involves widened wiring traces. The wiring thin plate includes a metal supporting layer, an insulating layer on the supporting layer, a wiring part having a plurality of wiring traces on the insulating layer, a scheduled portion defined on the supporting layer to be welded, and a protrusion formed on the supporting layer for the scheduled portion and having a height that is the same as a height of the wiring part.

Abstract: To obtain an air-conditioning apparatus that does not make a refrigerant circulate up to an indoor unit and further can achieve energy-saving. A refrigeration cycle is configured by connecting a compressor that pressurizes a refrigerant, a four-way valve that switches a circulation path of the refrigerant, a heat source side heat exchanger that performs heat exchange, expansion valves for pressure-adjusting the refrigerant, and a plurality of intermediate heat exchangers that performs heat exchange between the refrigerant and the heat medium to heat and cool the heat medium, with piping. A heat medium circuit is configured by connecting intermediate heat exchangers, pumps that pressurize the heat medium, and a plurality of use side heat exchangers that perform heat exchange between the heat medium and the air in the indoor space, with piping.

Abstract: A refrigeration cycle is configured by connecting a compressor, a four-way valve, a heat source side heat exchanger, expansion valves, and intermediate heat exchangers by piping. A heat medium circulation circuit is configured by connecting intermediate heat exchangers, pumps, and use side heat exchangers by piping. The outdoor unit accommodates the compressor, the four-way valve, and the heat source side heat exchanger, and the relay unit that is installed in a non-subject space which is different from an indoor space and is on an installation floor separated by two or more floors and accommodates the expansion valves, the pump, and intermediate heat exchangers are connected by two pipelines. The relay unit and an indoor unit that accommodates use side heat exchangers and is installed at a position where an indoor space can be air-conditioned are connected by two pipelines.

Abstract: A thumbnail image creation apparatus includes at least one processor coupled to at least one memory. The at least one processor is programmed to create a thumbnail image of a three-dimensional (3D) model contained in 3D model data, and a thumbnail image is created so that the thumbnail image contains a feature portion of the 3D model.

Abstract: Provided is a wiring thin plate capable of securely hold-down the wiring thin plate around a scheduled portion to be a welded spot even if the wiring thin plate is downsized and involves widened wiring traces. The wiring thin plate includes a metal supporting layer, an insulating layer on the supporting layer, a wiring part having a plurality of wiring traces on the insulating layer, a scheduled portion defined on the supporting layer to be welded, and a protrusion formed on the supporting layer for the scheduled portion and having a height that is the same as a height of the wiring part.

Abstract: A tank-type vacuum circuit breaker includes: a pressure tank; an insulating frame that is detachably supported by a support member provided in the pressure tank using a coupling; a vacuum interrupter that is supported by the insulating frame and includes a stationary electrode and a moving electrode; a stationary-electrode side terminal that is connectably/disconnectably connected to a bushing-terminal side internal conductor; a moving-electrode side terminal that is connectably/disconnectably connected to a bushing-terminal side internal conductor; and an insulating rod, the inside end of which is detachably coupled to the moving electrode and the outside end of which is coupled to an opening/closing actuation mechanism that opens/closes the contacts of the stationary contact and moving contact.

Abstract: A reference block which is machined from a single body of material and is a single block with reference pins integral therewith is configured for use in a method of manufacturing a head suspension by laser-welding the flexure to the load beam at a first welding spot so that a tongue is pressed against a convex portion under predetermined load. The method includes steps of forming, before joining the flexure and load beam together, at least one positioning reference hole in each of the flexure and load beam within a circular range that is defined around the first welding spot with a radius equal to a distance between the first welding spot and the projection, laying the flexure and load beam one on another, inserting the reference pins of the reference pin block into the reference holes, and laser-welding the flexure and load beam to each other at the first welding spot.

Abstract: A method manufactures a head suspension by laser-welding the flexure to the load beam at a first welding spot so that a tongue is pressed against a convex portion under predetermined load. The method includes step of forming, before joining the flexure and load beam together, at least one positioning reference hole in each of the flexure and load beam within a circular range that is defined around the first welding spot with a radius equal to a distance between the first welding spot and the projection, laying the flexure and load beam one on another, inserting reference pin into the reference holes, and laser-welding the flexure and load beam to each other at the first welding spot.

Abstract: A refrigeration cycle is configured by connecting a compressor that compresses the refrigerant, a four-way valve that switches the circulation path of the refrigerant, a heat source side heat exchanger that exchanges heat, expansion valves that adjust the pressure of the refrigerant, and two or more intermediate heat exchangers that exchange heat between the refrigerant and the heat medium to heat and cool the heat medium, by piping. A heat medium circulation circuit is configured by connecting two or more intermediate heat exchangers, pumps that pressurize the heat medium, two or more use side heat exchangers that exchange heat between the heat medium and the air in the indoor space, and flow path switching valves that switch paths of the heated heat medium or the cooled heat medium to the use side heat exchangers, by piping.

Abstract: A multi-chamber air conditioner including a heat-source side refrigerant circuit in which a compressor, an outdoor heat exchanger, a first heat exchanger, a refrigerant flow-rate controller, and a second heat exchanger are connected in series, a first use-side refrigerant circuit in which the first heat exchanger and an indoor heat exchanger are connected in series, and a second use-side refrigerant circuit in which the second heat exchanger and the indoor heat exchanger are connected in series, and a heat-source side refrigerant circulating in the heat-source side refrigerant circuit and a use-side refrigerant circulating in the use-side refrigerant circuit are heat-exchanged in the first heat exchanger. The heat-source side refrigerant circulating in the heat-source side refrigerant circuit and the use-side refrigerant circulating in the use-side refrigerant circuit are heat-exchanged in the second heat exchanger.

Abstract: The present invention provides a compound which enhances the production of erythropoietin. The present invention provides, for example, a compound represented by the formula (1) wherein R1: -Q1, -Q1-X-Q2, or -Q1-X-Q2-Y-Q3: a monocyclic or bicyclic aromatic heterocyclic group; Q2, Q3: an aromatic hydrocarbon ring group or a monocyclic aromatic heterocyclic group; X: —CONH—, —CONHCH2—, —CH2OCH2—, —NHCH2CH2—, or the like; Y: a single bond, —O—, —(CH2)n—, or —O—(CH2)n—; m, n: an integer from 1 to 3; R2: H or an alkyl group; and R3: H, an alkoxycarbonyl group, a carboxy group, an aromatic hydrocarbon ring group, or a monocyclic aromatic heterocyclic group.