Abstract: A semiconductor device is provided in which power consumption is reduced and an increase in circuit area is inhibited. The semiconductor device includes a high frequency amplifier circuit, an envelope detection circuit, and a power supply circuit. The power supply circuit has a function of supplying a power supply potential to the high frequency amplifier circuit, an output of the high frequency amplifier circuit is connected to the envelope detection circuit, and an output of the envelope detection circuit is connected to the power supply circuit. The power supply circuit can reduce the power consumption by changing the power supply potential in accordance with the output of the high frequency amplifier circuit. The use of an OS transistor in the envelope detection circuit can inhibit an increase in circuit area.

Abstract: An electrolytic synthesis system is equipped with an electrolysis device, a synthesis device, a gas adsorption type storage battery, and a control device. The gas adsorption type storage battery adsorbs, to electrodes thereof, carbon dioxide gas within the atmosphere during charging, and releases the carbon dioxide gas that was adsorbed to the electrodes, during discharging. When an adsorption amount of the carbon dioxide gas adsorbed to the electrodes exceeds a predetermined first threshold value, the control device controls a discharging switch and thereby initiates discharging of the gas adsorption type storage battery.

Abstract: In the case that the concentration of carbon dioxide gas within an exhaust gas has fallen below a predetermined carbon dioxide concentration threshold value in a state in which oxygen gas is being supplied to a synthesizing device, an electrosynthesis system opens a water vapor amount adjustment valve without opening a carbon dioxide amount adjustment valve, and thereby supplies hydrogen gas to the synthesizing device via an electrolysis device.

Abstract: An electrosynthesis system is equipped with an electrolysis device that carries out electrolysis on carbon dioxide gas and water vapor, a synthesizing device that synthesizes a hydrocarbon gas from hydrogen gas and carbon monoxide gas that are generated by the electrolysis, and a control device. The control device adjusts a flow rate of the water vapor supplied to the electrolysis device, in a manner so that a first concentration ratio, which is a concentration ratio between the hydrogen gas and the carbon monoxide gas in a mixed gas discharged from the electrolysis device and containing the hydrogen gas and the carbon monoxide gas, becomes a predetermined target concentration ratio.

Abstract: A catalyst for methane synthesis is made up from layered double hydroxides represented by the following general formula (1). [M2+1-xM3+x(OH)2]x+[An?x/n·yH2O]??(1) In formula (1), M2+ is Ni2+ and M3+ is Al3+ or Cr3+. Further, An? is CO32?. Furthermore, the term x lies within a range of 0.19 to 0.34 (0.19?x?0.34), and y is 0 or a positive integer.

Abstract: An electrolytic cell includes a membrane electrode assembly, a pair of separators, a gas supply flow path, and a gas discharge flow path. A fuel electrode of the membrane electrode assembly contains a catalytic material that activates the electrolytic reactions of the raw material gas, and the amount of the catalytic material contained in the fuel electrode increases from the upstream side to the downstream side of the gas supply flow path.

Abstract: An electrosynthesis system is equipped with an adjustment device that adjusts a flow rate of a hydrogen gas supplied from a hydrogen gas storage device to a generated gas flow path, and a flow rate of a carbon monoxide gas supplied from the carbon monoxide gas storage device to the generated gas flow path, based on a detection result of a first concentration sensor, in a manner so that the hydrogen gas and the carbon monoxide gas are supplied to a hydrocarbon synthesizing device at a predetermined concentration ratio.

Abstract: An electrolysis system is provided with a valve device that switches between supplying a mixed gas to a cathode and supplying oxygen gas to an anode, an ammeter that measures an electric current between a pair of electrodes, and a control device that controls the valve device to switch what is supplied to the electrolysis device from the mixed gas to the oxygen gas when the electric current falls below a predetermined first threshold value while the mixed gas is supplied to the electrolysis device, and causes carbon deposited on the cathode to react chemically with the oxygen gas.

Abstract: An electrolysis system includes: an oxygen consumption device that consumes, using hydrogen, oxygen gas in exhaust gas; a valve device that is configured to switch a supply destination of the hydrogen-containing gas output from a solid oxide electrolysis stack to either one of the oxygen consumption device or a generating device; and a control device that controls the valve device according to the oxygen concentration in the exhaust gas output from the oxygen consumption device to switch the supply destination of the hydrogen-containing gas.

Abstract: A fuel producing system includes an electrolyzer that is supplied with a raw material gas containing carbon dioxide and water vapor, and electrolyzes the raw material gas to generate a product gas containing hydrogen and carbon monoxide, and a first gas-liquid separator that performs gas-liquid separation on the product gas generated in the electrolyzer. Water vapor produced from water separated in the first gas-liquid separator or water vapor produced from water from a water supply source is allowed to be supplied to the electrolyzer in addition to the raw material gas.

Abstract: An inner case of an electrolysis system houses therein an electrolysis stack. An intermediate case encloses the inner case from outside. An outer case encloses the intermediate case from outside. A method of operating the electrolysis system includes a vacuum step, a heat storage step, and an electrolysis starting step. In the vacuum step, air in a vacuum space formed between the intermediate case and the outer case is discharged. In the heat storage step, a heating fluid is supplied to a heat storage space formed between the inner case and the intermediate case.

Abstract: An electronic apparatus includes a wireless communication section configured to perform wireless communication, a storing section configured to store identification information of a terminal device to which the wireless communication section has an achievement of connection through a network, and a processing section configured to perform communication control for the wireless communication section. The processing section performs searching processing for external access points, performs second searching processing for searching for the terminal device corresponding to the identification information stored in the storing section in a network formed by the external access points found by the searching processing, and causes the wireless communication section to connect to the external access point to which the terminal device found by the second searching processing is connected.

Abstract: An electronic apparatus includes a wireless communication section configured to perform wireless communication, a storing section configured to store identification information of a terminal device to which the wireless communication section has an achievement of connection through a network, and a processing section configured to perform communication control for the wireless communication section. The processing section performs searching processing for external access points, performs second searching processing for searching for the terminal device corresponding to the identification information stored in the storing section in a network formed by the external access points found by the searching processing, and causes the wireless communication section to connect to the external access point to which the terminal device found by the second searching processing is connected.

Abstract: When a terminal apparatus establishes second wireless communication with an access point in compliance with a second wireless communication scheme, a terminal control unit transmits a first network identifier of the access point, the second wireless communication with which is established by the terminal apparatus, to a device. When a first network identifier is included in a list of network identifiers that are acquired by the device by searching a wireless communication network in compliance with a second wireless communication scheme, the terminal control unit causes a first password input screen to be displayed.

Abstract: When a terminal apparatus establishes second wireless communication with an access point in compliance with a second wireless communication scheme, a terminal control unit transmits a first network identifier of the access point, the second wireless communication with which is established by the terminal apparatus, to a device. When a first network identifier is included in a list of network identifiers that are acquired by the device by searching a wireless communication network in compliance with a second wireless communication scheme, the terminal control unit causes a first password input screen to be displayed.

Abstract: An emotion identification apparatus identifying emotions of a subject includes: a sensor and a measuring unit which acquire information on at least a concentration of oxyhemoglobin in blood as bloodstream information by performing near-infrared spectroscopy measurement for one or more measurement regions only in a frontal lobe of a brain of a subject; and an identification processing unit configured to identify emotions of the subject based on the bloodstream information acquired by the sensor and the measuring unit.