Abstract: A semiconductor device includes a channel layer configured to include a first nitride semiconductor containing gallium (Ga) and a first crystal dislocation density, and a barrier layer provided over a first surface side of the channel layer, and configured to include a second nitride semiconductor containing aluminum (Al) and a second crystal dislocation density, wherein the second crystal dislocation density is larger than the first crystal dislocation density.

Abstract: A refrigeration cycle device includes a flow path switching unit configured to determine whether an outside-air heat absorption unit is required to be defrosted. The flow path switching unit is further configured to: cause a heat medium to circulate separately between a first circulation circuit configured to cause the heat medium to circulate through a heat source and a second circulation circuit configured to cause the heat medium to circulate between an evaporation unit and the outside-air heat absorption unit, when it is determined that the outside-air heat absorption unit is not required to be defrosted; and switch a flow path of the heat medium to cause the heat medium in the first circulation circuit to circulate through the outside-air heat absorption unit, when it is determined that the outside-air heat absorption unit is required to be defrosted.

Abstract: Provided is a wave control medium capable of controlling waves while decreasing the size of a metamaterial or the like and increasing the bandwidth of the metamaterial or the like. A wave control medium 10 is formed by combining at least two among a coil 11 and a coil 12 which are three-dimensional microstructures formed into a spiral structure, the coil 11 and the coil 12 including any one of a metal, a dielectric material, a magnetic material, a semiconductor, and a superconductor, or a material selected from a plurality of combinations of these materials, and having functions of a capacitor and an inductor. The coil 11 and the coil 12 form a capacitor between the lateral face of the coil 11 and the lateral face of the coil 12 facing each other, and form an inductor by forming a three-dimensional multiple resonance structure by the coil 11 and the coil 12 having a spiral structure.

Abstract: Disclosed is a system, including: a robot having a controller configured to perform a self-assessment by being configured to: instruct an external sensor that is spaced apart from the robot to obtain and transmit sensor data that is indicative a condition of an external surface of the robot; determine from the sensor data that the robot requires service; and transmit a service request or schedule service responsive to determining that the robot requires service.

Abstract: A semiconductor device includes a channel layer, a barrier layer disposed above the channel layer, a protective layer disposed on the barrier layer, and an insulating layer disposed on the protective layer. A composition of the barrier layer is represented by Inx1Alx2Ga1-x1-x2N, where 0.00<=x1<=0.20, and 0.10<=x2<=1.00, and a composition of the protective layer is represented by Iny1Aly2Ga1-y1-y2N, where 0.00<=y1<=0.20, and 0.10<=y2<=1.00, x2<y2. The protective layer is an amorphous layer.

Abstract: A primary chatbot may receive a query from a user. The primary chatbot, using natural language processing techniques, may analyze the query. The primary chatbot may identify, from the analyzing, one or more key features of the query. The primary chatbot may push the one or more key features to one or more secondary chatbots. The primary chatbot may identify which one of the primary chatbot and the one or more secondary chatbots is to respond to the query. The primary chatbot may transmit the response to the user.

Abstract: A disclosed semiconductor device includes an electron transit layer; an electron supply layer disposed above the electron transit layer; a source electrode, a drain electrode, and a gate electrode, the source electrode, the drain electrode, and the gate electrode being disposed on the electron supply layer; a first capping layer disposed on the electron supply layer between the gate electrode and the drain electrode; and a negative charge generation layer disposed on the first capping layer, the negative charge generation layer being configured to generate a negative charge.

Abstract: In a general aspect, a multiple-entity root of trust is constructed and maintained for use in a cryptography system. In some aspects, a genesis data block includes genesis block data entries representing respective member entities of a root of trust consortium. A genesis block is generated by digitally signing the genesis data block. The genesis block is provided for use by end entities as a root of trust in a cryptography system. In some aspects, a hash of an existing block of a chain is obtained, and a data block comprising a data entry is generated. The data entry identifies an action by one or more member entities of the root of trust consortium. A new block of the chain is generated by digitally signing a combination of the data block and the hash of the existing block. The new block is provided for use by end entities as the root of trust in the cryptography system.

Abstract: A refrigeration cycle device includes: a compressor; a heat radiating unit that causes refrigerant to heat air supplied to a space inside a vehicle cabin; a decompression unit that decompresses the refrigerant; an outside air heat absorbing unit that causes the refrigerant to absorb heat from outside air; a waste heat absorbing unit that causes the refrigerant to absorb waste heat of a waste heat device; a shutter that opens and closes a passage for the outside air introduced into the outside air heat absorbing unit; and a control unit that closes the shutter when it is determined that an amount of waste heat of the waste heat device is larger than an amount of heat absorbed by the refrigerant in the outside air heat absorbing unit and the waste heat absorbing unit.

Abstract: An air conditioner for a vehicle includes a refrigeration cycle, a heating unit and a control unit. The refrigeration cycle includes an air-conditioning evaporator, a chilling evaporator, an air-conditioning side flow path, a detour flow path and an air-conditioning flow rate adjustment unit. The control unit includes a determination unit that determines whether a condensation condition is satisfied when a refrigerant is flowing through the chilling evaporator via the detour flow path in a state where an inflow of a refrigerant into the air-conditioning evaporator is prohibited. When the determination unit determines that the condensation condition is satisfied, the control unit controls the air-conditioning flow rate adjustment unit to allow an inflow of a refrigerant into the air-conditioning evaporator as a condensation suppression operation for suppressing condensation of a refrigerant in the air-conditioning evaporator.

Abstract: The present invention provides an end face polishing device capable of improving a polishing accuracy by polishing an end face of an optical fiber ferrule with adjusted polishing pressure. An end face polishing device 1 for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate 5 driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion 9.

Abstract: A battery temperature control device includes a heating medium circuit that connects a battery heat exchanger, an outside air heat exchanger, a heating medium pump, and a flow rate regulating unit. The outside air heat exchanger is connected in parallel to the battery heat exchanger. The flow rate regulating unit adjusts a flow rate of the heating medium in a first path through which the heating medium flows via at least the outside air heat exchanger and a flow rate of the heating medium in a second path through which the heating medium flows by detouring around the outside air heat exchanger. The control unit controls the flow rate regulating unit to adjust a ratio between a flow rate of the heating medium in the first path and a flow rate of the heating medium in the second path.

Abstract: A sensor apparatus includes a sensor head and a measurement unit. The sensor head includes a first probe and a second probe. The first probe includes a first tiny antenna section for transmission and a second tiny antenna section for transmission. The second probe is arranged at a predetermined distance from the first probe, and includes a first tiny antenna section for reception and a second tiny antenna section for reception. The measurement unit generates a measurement signal that includes information regarding characteristics of a propagation of an electromagnetic wave in a medium between the first tiny antenna section for transmission and the first tiny antenna section for reception, and information regarding characteristics of the propagation of the electromagnetic wave in the medium between the second tiny antenna section for transmission and the second tiny antenna section for reception.

Abstract: Provided is a scissors-type medical treatment tool capable of not only local tissue fixation in an incision/cutting part but also heating on side surfaces of electrodes of a forceps/tweezers type. It has been found out that a tissue part in which tissue is nipped between blades and a tissue part which is brought into abutment against side surfaces of the blades can be heated simultaneously or sequentially by optimizing arrangement of microwave application electrodes and microwave receiver electrodes in a blade pair (in particular, by causing coagulation to be performed evenly on the left and right of the blades), and the present invention has therefore been achieved.

Abstract: A fuel tank structure that makes it difficult for mud, water, dust or the like to enter a fuel tank and that can restrict a fuel leakage path when a vehicle falls. A fuel cap includes a cap body mounted to a fuel supply port of a fuel tank, and a pressure adjusting device provided in the cap body to adjust a pressure in the fuel tank. In the fuel cap, a space is formed as a hermetically closed space in which the pressure adjusting device is accommodated, and the space communicates with an exterior of the fuel tank via a breather tube.

Abstract: A semiconductor device includes: a mounting board; and a semiconductor element disposed on the mounting board via metal bumps, wherein the semiconductor element includes a semiconductor stacked structure and first electrodes, the mounting board includes second electrodes, the metal bumps include a second layer in contact with the second electrodes of the semiconductor element and a first layer located on a side opposite to the second electrodes, an average crystal grain size of crystals included in the second layer is larger than an average crystal grain size of crystals included in the first layer, and the first layer is spaced apart from the second electrodes of the semiconductor element.

Abstract: The present invention provides an end face polishing device capable of improving a polishing accuracy by polishing an end face of an optical fiber ferrule with adjusted polishing pressure. An end face polishing device 1 for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate 5 driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion 9.

Abstract: A light emission control device includes: a first light emission control circuit outputting a first control signal and a second control signal; and a second light emission control circuit outputting a third control signal and a fourth control signal. The first light emission control circuit controls a phase of the second control signal based on a first PWM signal in a first PWM dimming mode. The second light emission control circuit controls a phase of the fourth control signal based on a second PWM signal in a second PWM dimming mode. The second light emission control circuit outputs the fourth control signal having a phase different from that of the second control signal in a first analog dimming mode and a second analog dimming mode.

Abstract: An image search apparatus includes a search processing unit, a first display processing unit, and a second display processing unit. The search processing unit extracts one or more images that meet a search condition, from a plurality of images associated with user accounts. The first display processing unit displays, as a result of search, the one or more images extracted by the search processing unit. The second display processing unit displays a predetermined specific page when, among the one or more images displayed as the result of search, a personally photographed image is operated, the personally photographed image being an image associated with a first-type user account and photographed at a facility corresponding to a second-type user account that is different from the first-type user account, the specific page corresponding to the second-type user account.

Abstract: A sensor device according to an embodiment of the present technology includes a sensor head and a measurement unit. The sensor head includes a first probe and a second probe, the first probe including a first antenna section used for transmission, the second probe including a second antenna section used for reception, the second probe being situated at a specified distance from the first probe and facing the first probe. The measurement unit includes a signal generator that generates a measurement signal that includes information regarding characteristics of a propagation of an electromagnetic wave in a medium between the first and second antenna sections.