Abstract: To provide a light-emitting element with an improved reliability, a light-emitting element with a high current efficiency (or a high quantum efficiency), and a novel dibenzo[f,h]quinoxaline derivative that is favorably used in a light-emitting element which is one embodiment of the present invention. A light-emitting element includes an EL layer between an anode and a cathode. The EL layer includes a light-emitting layer; the light-emitting layer contains a first organic compound having an electron-transport property and a hole-transport property, a second organic compound having a hole-transport property, and a light-emitting substance; the combination of the first organic compound and the second organic compound forms an exciplex; the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound; and a difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is less than or equal to 0.4 eV.

Abstract: An information processing apparatus comprises a controller, the controller being configured to execute: acquiring pieces of result data showing movement results of a plurality of users; calculating at least either first evaluation values about convenience in a case of moving in predetermined sections in private vehicles or second evaluation values about convenience in a case of moving in the predetermined sections in public transportation at least based on the pieces of result data; and calculating, for a predetermined area, a score indicating a deviation between convenience in the case of moving in the private vehicles and convenience in the case of moving in the public transportation based on the first and second evaluation values.

Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.

Abstract: A system including: a first information processing device configured to: transmit one or more certificates issued to a specific user; acquire one or more pieces of encrypted information each including identification information of a user, and encrypted with a public key of the user to whom the certificate is issued; generate one or more pieces of decryption information that respectively correspond to the one or more pieces of encrypted information by decrypting the one or more pieces of encrypted information; and transmit the one or more pieces of decryption information; and a second information processing device configured to: receive the one or more certificates and the one or more pieces of decryption information; and evaluate a submission status of the certificate by the specific user based on the number of one or more certificates and the number of pieces of decryption information including the identification information of the specific user.

Abstract: A storage unit stores transaction data to be recorded on a blockchain. When receiving identification information identifying a processing system for processing the transaction data among processing systems, a processing unit calculates a function value using a parameter corresponding to the received identification information and a function. The processing unit notifies a determination unit, which determines the processing system for processing the transaction data from among the processing systems, of the transaction data and signature data generated from the function value.

Abstract: A fuel cell system, wherein the fuel cell system comprises a fuel cell, an oxidant gas system and a controller; wherein the oxidant gas system comprises an oxidant gas supply flow path, an oxidant off-gas discharge flow path, a first bypass flow path, an oxidant gas supplier, a pressure control valve, a gas-liquid separator and a humidifier; wherein the oxidant gas supplier comprises, on the oxidant off-gas discharge flow path side, an expander connected to the oxidant gas supplier by an axis.

Abstract: The present disclosure provides a fuel cell system that allows greater convenience and smaller size to be achieved. The fuel cell system of the disclosure comprises a fuel cell module and a liquid water discharge channel for discharge of liquid water in the fuel cell module. The fuel cell module comprises a battery stack, a reactive gas discharge manifold formed so that, during use of the fuel cell system, reactive gas flows from the lower end in the vertical direction to the upper end in the vertical direction, a reactive gas discharge outlet disposed so as to be located at the upper end of the reactive gas discharge manifold in the vertical direction, and a liquid water discharge outlet disposed so as to be located at the lower end of the reactive gas discharge manifold in the vertical direction. The liquid water discharge channel is connected to the liquid water discharge outlet in such a manner that liquid water flows through its interior.

Abstract: To make it possible to suppress the occurrence of white fog and water splashing in a fuel cell system and to discharge gas and liquid to the outside of the system while diluting fuel gas, a fuel cell system is provided wherein each of an anode off-gas passage and a cathode off-gas passage is provided with a gas-liquid separator, an exhaust passage and a drain passage are separated, a gas in the anode off-gas is mixed with a gas in the cathode off-gas and are discharged together, and a liquid in the anode off-gas is mixed with a liquid in the cathode off-gas and are discharged together. The liquid surface level of the gas-liquid separator provided in the anode off-gas passage is controlled by a controller so that the liquid surface level does not become zero when liquid is discharged. As a result, in the gas-liquid separator, it is possible to prevent the gas in the anode off-gas from flowing into the drain side.

Abstract: A device includes a battery case (42) that stores a battery (62A or 62B), a lock mechanism (133) that is capable of fixing and holding the stored battery (62A or 62B) in the battery case (42), and an operation member (44) that is capable of performing switching operation of the lock mechanism (133) between a battery-fixed state and a non-battery-fixed state. The lock mechanism (133) includes a movable block (160) which is supported by the battery case (42) in a displaceable manner. The movable block (160) has a battery restriction portion (160b or 160c) which restricts displacement of the battery (62A or 62B) in a separation direction in a state of being displaced to a battery fixing position, and a holding force receiving portion (160d) which receives a holding force for maintaining the movable block (160) at the battery fixing position from the operation member (44) in a state where the operation member (44) is operated within a predetermined positional range.

Abstract: To precisely measure and control the amount of a cathode gas supplied to a fuel cell, a fuel cell system includes a fuel cell, a first flow passage through which a cathode gas is supplied to the fuel cell, a second flow passage through which a cathode off-gas is discharged from the fuel cell, a bypass flow passage which is bifurcated from the first flow passage and which is connected to the second flow passage, a compressor provided in the first flow passage, a first flowmeter provided in the first flow passage, a flow amount regulation valve provided in the bypass flow passage, a second flowmeter provided in the bypass flow passage, and a controller which controls the flow amount of the cathode gas supplied to the fuel cell, wherein the compressor is arranged on the upstream side of the bypass flow passage, the first flowmeter is arranged on the upstream side of the compressor, the second flowmeter is arranged on the downstream side of the flow amount regulation valve, and the controller controls the flow am

Abstract: The present disclosure provides a fuel cell system that allows greater convenience and smaller size to be achieved. The fuel cell system of the disclosure comprises a fuel cell module and a liquid water discharge channel for discharge of liquid water in the fuel cell module. The fuel cell module comprises a battery stack, a reactive gas discharge manifold formed so that, during use of the fuel cell system, reactive gas flows from the lower end in the vertical direction to the upper end in the vertical direction, a reactive gas discharge outlet disposed so as to be located at the upper end of the reactive gas discharge manifold in the vertical direction, and a liquid water discharge outlet disposed so as to be located at the lower end of the reactive gas discharge manifold in the vertical direction. The liquid water discharge channel is connected to the liquid water discharge outlet in such a manner that liquid water flows through its interior.

Abstract: To precisely measure and control the amount of a cathode gas supplied to a fuel cell, a fuel cell system includes a fuel cell, a first flow passage through which a cathode gas is supplied to the fuel cell, a second flow passage through which a cathode off-gas is discharged from the fuel cell, a bypass flow passage which is bifurcated from the first flow passage and which is connected to the second flow passage, a compressor provided in the first flow passage, a first flowmeter provided in the first flow passage, a flow amount regulation valve provided in the bypass flow passage, a second flowmeter provided in the bypass flow passage, and a controller which controls the flow amount of the cathode gas supplied to the fuel cell, wherein the compressor is arranged on the upstream side of the bypass flow passage, the first flowmeter is arranged on the upstream side of the compressor, the second flowmeter is arranged on the downstream side of the flow amount regulation valve, and the controller controls the flow am

Abstract: A determination method performed by a first apparatus corresponding to a first user, the determination method includes acquiring, from a second apparatus corresponding to a second user which is different from the first user, first aggregated information in which identification information for identifying each user having a specific relationship with each user having a specific relationship with the first user is summarized; acquiring, from the second apparatus, second aggregated information in which identification information for identifying each user having a specific relationship with the second user is summarized; identifying a result which indicates a specific relationship between the first user and the second user based on the acquired first aggregated information and the acquired second aggregated information; and outputting the identified result.

Abstract: To make it possible to suppress the occurrence of white fog and water splashing in a fuel cell system and to discharge gas and liquid to the outside of the system while diluting fuel gas, a fuel cell system is provided wherein each of an anode off-gas passage and a cathode off-gas passage is provided with a gas-liquid separator, an exhaust passage and a drain passage are separated, a gas in the anode off-gas is mixed with a gas in the cathode off-gas and are discharged together, and a liquid in the anode off-gas is mixed with a liquid in the cathode off-gas and are discharged together. The liquid surface level of the gas-liquid separator provided in the anode off-gas passage is controlled by a controller so that the liquid surface level does not become zero when liquid is discharged. As a result, in the gas-liquid separator, it is possible to prevent the gas in the anode off-gas from flowing into the drain side.

Abstract: A chip mounting portion included in a semiconductor device has a region including a semiconductor chip in plan view. When an average surface roughness of the region is “Ra”, 0.8 ?m?Ra?3.0 ?m holds.

Abstract: A device includes a battery case (42) that stores a battery (62A or 62B), a lock mechanism (133) that is capable of fixing and holding the stored battery (62A or 62B) in the battery case (42), and an operation member (44) that is capable of performing switching operation of the lock mechanism (133) between a battery-fixed state and a non-battery-fixed state. The lock mechanism (133) includes a movable block (160) which is supported by the battery case (42) in a displaceable manner. The movable block (160) has a battery restriction portion (160b or 160c) which restricts displacement of the battery (62A or 62B) in a separation direction in a state of being displaced to a battery fixing position, and a holding force receiving portion (160d) which receives a holding force for maintaining the movable block (160) at the battery fixing position from the operation member (44) in a state where the operation member (44) is operated within a predetermined positional range.