Abstract: A power semiconductor device includes an insulating substrate on which a first conductor layer is arranged on one surface, a first conductor that is connected to the first conductor layer via a first connecting material, and a semiconductor element that is connected to the first conductor via a first connecting material. When viewed from a direction perpendicular to an electrode surface of the semiconductor element, the first conductor includes a peripheral portion formed larger than the semiconductor element. A first recess is formed in the peripheral portion so that a thickness of the first connecting material becomes thicker than other portions.

Abstract: An antenna device is provided as a near-field communication antenna device that is configured by arranging a plurality of loop antennas. Each loop antenna includes a plurality of parallel circuits each having a capacitor and a resistance element; and a plurality of looped conductors in a shape of a loop that is divided. The divided looped conductors are connected to each other via the parallel circuits, and the plurality of looped conductors and the plurality of parallel circuits form a loop.

Abstract: An underwater welding apparatus includes: an underwater welding head provided underwater and having, at its leading end, a nozzle section from which laser light is emitted; a shied cover formed of an elastic member and provided around the nozzle section so as to form, at the leading end of the underwater welding head, a space where water is excluded by shield gas; and an expansion/contraction member having a discharge hole for discharging water and shield gas containing metal dust particles from an inside of the shield cover, the discharge hole being increased in diameter as pressure inside the shield cover rises, while being reduced in diameter as the pressure inside the shield cover falls.

Abstract: A heating laser beam is emitted to a cracked portion to remove moisture from the cracked portion, and subsequently, a welding laser beam is emitted to the cracked portion to heat and melt the cracked portion. The heating laser beam and the welding laser beam are emitted to an entire surface of the cylindrical body inside the reactor such as a stub tube penetrating through and fixed to a reactor bottom portion and a crack of the welded portion between the cylindrical body and the reactor bottom portion to thereby prevent a new crack from occurring and reactor water from leaking.

Abstract: A maintenance/repair device for reactor internal structure 6 of the present invention includes a device body 6a configured to be fixed on a reactor internal structure 49. Connected to the device body 6a is a welding-part repair mechanism 6b configured to repair a welding part 49a of the reactor internal structure 49. Thus, a welding part 2a of the reactor internal structure 49 can be repaired by the welding-part repair mechanism 6b, while the device body 6a is fixed on the reactor internal structure 49.

Abstract: An underwater welding apparatus includes: an underwater welding head provided underwater and having, at its leading end, a nozzle section from which laser light is emitted; a shied cover formed of an elastic member and provided around the nozzle section so as to form, at the leading end of the underwater welding head, a space where water is excluded by shield gas; and an expansion/contraction member having a discharge hole for discharging water and shield gas containing metal dust particles from an inside of the shield cover, the discharge hole being increased in diameter as pressure inside the shield cover rises, while being reduced in diameter as the pressure inside the shield cover falls.

Abstract: A maintenance/repair device for reactor internal structure 6 of the present invention includes a device body 6a configured to be fixed on a reactor internal structure 49. Connected to the device body 6a is a welding-part repair mechanism 6b configured to repair a welding part 49a of the reactor internal structure 49. Thus, a welding part 2a of the reactor internal structure 49 can be repaired by the welding-part repair mechanism 6b, while the device body 6a is fixed on the reactor internal structure 49.

Abstract: A method of sealing a surface crack in a member is provided includes steps of irradiating a region of the member at which the crack is produced with a heating laser beam so as to heat the region to a temperature lower than a melting point of the member, and then irradiating a region of the member at which the crack is produced with a welding laser beam subsequent to irradiation of the heating laser beam so as to heat the region to a temperature higher than or equal to the melting point of the member, thereby sealing an opening of the surface crack of the member.

Abstract: A display apparatus according to the present invention comprises a plurality of pixel sections 150 and performs an image display operation and an image reading operation. The plurality of pixel sections 150 each include a light output section 160 for outputting first light, and a light receiving section 102 for receiving reflected light obtained as a result of an imaging subject being irradiated with the first light. The apparatus further comprises a directivity adjusting section for adjusting a directivity of the first light. The plurality of pixel sections 150 are divided into a plurality of groups. The light output section 160 outputs the first light and the light receiving section 102 receives the reflected light on a group-by-group basis.

Abstract: A maintenance/repair device for reactor internal structure 6 of the present invention includes a device body 6a configured to be fixed on a reactor internal structure 49. Connected to the device body 6a is a welding-part repair mechanism 6b configured to repair a welding part 49a of the reactor internal structure 49. Thus, a welding part 2a of the reactor internal structure 49 can be repaired by the welding-part repair mechanism 6b, while the device body 6a is fixed on the reactor internal structure 49.

Abstract: A TIP drive unit that calculates a cable drive torque stably is provided. In accordance with the invention, Traversing In-core Probe (TIP) drive unit includes a housing, a storage reel configured to storage the probe cable, a drive mechanism including a motor, and configured to feed the probe cable form the storage reel and spool the probe cable onto the storage reel, a motor controller configured to drive the motor at a predefined rotating speed, a processor configured to calculate a cable drive torque that is a torque necessary for moving the TIP and the probe cable by using a value of supply power necessary for driving the motor, a value of the predefined rotating speed of the motor, and a loss torque that is a torque necessary for driving the drive mechanism, and a noise filter configured to remove noise included in a signal indicating the value of the supply power.

Abstract: A heating laser beam is emitted to a cracked portion to remove moisture from the cracked portion, and subsequently, a welding laser beam is emitted to the cracked portion to heat and melt the cracked portion. The heating laser beam and the welding laser beam are emitted to an entire surface of the cylindrical body inside the reactor such as a stub tube penetrating through and fixed to a reactor bottom portion and a crack of the welded portion between the cylindrical body and the reactor bottom portion to thereby prevent a new crack from occurring and reactor water from leaking.

Abstract: A method of sealing a surface crack in a member is provided includes steps of irradiating a region of the member at which the crack is produced with a heating laser beam so as to heat the region to a temperature lower than a melting point of the member, and then irradiating a region of the member at which the crack is produced with a welding laser beam subsequent to irradiation of the heating laser beam so as to heat the region to a temperature higher than or equal to the melting point of the member, thereby sealing an opening of the surface crack of the member.

Abstract: A maintenance/repair device for reactor internal structure 6 of the present invention includes a device body 6a configured to be fixed on a reactor internal structure 49. Connected to the device body 6a is a welding-part repair mechanism 6b configured to repair a welding part 49a of the reactor internal structure 49. Thus, a welding part 2a of the reactor internal structure 49 can be repaired by the welding-part repair mechanism 6b, while the device body 6a is fixed on the reactor internal structure 49.

Abstract: A display apparatus according to the present invention comprises a plurality of pixel sections 150 and performs an image display operation and an image reading operation. The plurality of pixel sections 150 each include a light output section 160 for outputting first light, and a light receiving section 102 for receiving reflected light obtained as a result of an imaging subject being irradiated with the first light. The apparatus further comprises a directivity adjusting section for adjusting a directivity of the first light. The plurality of pixel sections 150 are divided into a plurality of groups. The light output section 160 outputs the first light and the light receiving section 102 receives the reflected light on a group-by-group basis.

Abstract: In a method for providing information on commodities to a user by using a computer, commodity-comparison information indicating at least one result of at least one comparison between the commodities is acquired and stored. Next, a commodity-comparison map which visually indicates at least one relationship between the commodities is produced by using the commodity-comparison information stored above, in such a manner that at least one coordinate axis of the commodity-comparison map corresponds to at least one evaluation criterion used in evaluation of the commodities, respectively. Then, relative-evaluation information which indicates at least one relative evaluation of the commodities is produced by using the commodity-comparison map. Finally, the relative-evaluation information is provided to the user.

Abstract: An interactive data analysis support apparatus for supporting the analysis of data comprises: a cross tabulation display device for displaying according to specified summing up conditions a cross tabulation in which data to be analyzed is cross summed up, a cell specifying device for specifying at least one cell among a number of cells constituting the cross tabulation, and a graph display device for displaying the data to be analyzed as a graph within the range of the cell specified by the cell specifying device.

Abstract: A case database is stored with values in a plurality of fields with respect to symptoms of past patients. A CPU, when new patient data are inputted, calculates a degree of similarity of each piece of case data to the new patient data as a total sum of a values obtained by weighting a difference between each value in the case data and its corresponding value in the new patient data in accordance with an influence degree of the value in the patient data, obtains a degree of similarity of each disease name as a total sum of degrees of similarity in the all pieces of case data having this disease name, and displays the disease name exhibiting the maximum degree of similarity together with the value in the new patient data that exhibits the maximum influence degree used for calculating the degree of similarity.

Abstract: A protecting circuit against short-circuit of an output terminal of an AC adapter, includes a current output switching transistor in which a power source is connected to an emitter thereof and an output terminal is connected to a collector thereof, a first switching transistor which is turned on when a controlled constant-voltage is over an available range of a voltage difference between a voltage of said power source and an output voltage, a second switching transistor which is connected to be turned on when the first switching transistor is turned on, a switch control amplifier which controls a switching operation so that the current output switching transistor is turned off when a voltage of the power source is a predetermined voltage or less, and a constant-current control amplifier which controls a constant current when the second switching transistor is turned on and enters a protecting operation state.

Abstract: In a method for providing information on commodities to a user by using a computer, commodity-comparison information indicating at least one result of at least one comparison between the commodities is acquired and stored. Next, a commodity-comparison map which visually indicates at least one relationship between the commodities is produced by using the commodity-comparison information stored above, in such a manner that at least one coordinate axis of the commodity-comparison map corresponds to at least one evaluation criterion used in evaluation of the commodities, respectively. Then, relative-evaluation information which indicates at least one relative evaluation of the commodities is produced by using the commodity-comparison map. Finally, the relative-evaluation information is provided to the user.