Abstract: An information processing device includes a prediction section and a price determination section. The prediction section predicts demand for hydrogen at a hydrogen station by using a demand prediction model that is a trained model generated beforehand through machine learning, the demand prediction model receiving at least a behavior pattern of a customer as input and outputting predicted demand for hydrogen. The price determination section determines a price of hydrogen at the hydrogen station, based on the predicted demand for hydrogen.

Abstract: An information processing device has a prediction unit and a business hour decision unit. The prediction unit predicts a demand for hydrogen at a hydrogen station through the use of a demand prediction model that is a learned model generated in advance through mechanical learning and that receives at least a behavioral pattern of a client and outputs the predicted demand for hydrogen. The business hour decision unit decides business hours of the hydrogen station based on the predicted demand for hydrogen.

Abstract: An information processing apparatus capable of accurately predicting demand for hydrogen at hydrogen stations is provided. An information processing apparatus includes an input data acquisition unit and a prediction unit. The input data acquisition unit acquires a behavior pattern of a customer regarding a vehicle that uses hydrogen as a fuel. The prediction unit predicts the demand for hydrogen at least one hydrogen station using a demand prediction model, which is a trained model generated by machine learning in advance, the demand prediction model receiving at least the behavior pattern and outputting a predicted demand for hydrogen.

Abstract: A fuel cell includes a catalyst layer containing a polymer electrolyte and catalyst-carrying carbon. A value of an initial weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer is set to a value that is smaller by 0.1 to 0.2 than a value of a weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer which maximizes a maximum output of the fuel cell in a state where the polymer electrolyte is not swollen.

Abstract: A fuel cell includes a catalyst layer containing a polymer electrolyte and catalyst-carrying carbon. A value of an initial weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer is set to a value that is smaller by 0.1 to 0.2 than a value of a weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer which maximizes a maximum output of the fuel cell in a state where the polymer electrolyte is not swollen.

Abstract: A fuel cell includes a catalyst layer containing a polymer electrolyte and catalyst-carrying carbon. A value of an initial weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer is set to a value that is smaller by 0.1 to 0.2 than a value of a weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer which maximizes a maximum output of the fuel cell in a state where the polymer electrolyte is not swollen.

Abstract: A fuel cell system includes a fuel cell provided in a vehicle; and an electronic control unit configured to determine whether an amount of water in the fuel cell is equal to or smaller than a predetermined amount, and to prevent dryness of the fuel cell by increasing the amount of water in the fuel cell when a speed of the vehicle is equal to or higher than a predetermined threshold value in a case where the electronic control unit determines that the amount of water in the fuel cell is equal to or smaller than the predetermined amount.

Abstract: A fuel cell system includes: a fuel cell including an electrolyte membrane, an anode formed on one surface of the electrolyte membrane, and a cathode formed on the other surface of the electrolyte membrane; an estimation portion configured to estimate water clogging in an anode side; and a controlling portion configured such that, when the estimation portion estimates that the anode side is in a water clogging state, the controlling portion maintains, at a predetermined rate, a flow rate of an anode gas flowing in the anode side, and controls a flow rate of a cathode gas flowing in a cathode side to be less than a predetermined rate.

Abstract: There is disclosed a fuel cell system or the like capable of sufficiently reducing an exhaust hydrogen concentration even in a case where a fuel cell is operated in a state of a low power generation efficiency. A bypass valve is arranged between an oxidation gas supply path and a cathode-off gas channel. In a state in which supply of an oxidation gas to a cathode falls short, pumping hydrogen is included in a cathode-off gas. Therefore, a valve open degree of the bypass valve is regulated, and a flow rate of bypass air is regulated to control the exhaust hydrogen concentration.

Abstract: A fuel cell system has produced water amount detection means that detects the amount of water produced in the fuel cell during low-efficiency operation of the system and gas supply limitation means that limits the amount of gas to be supplied to the fuel cell, based on the detected amount of water. The produced water amount detection means allows the amount of produced water to be correctly determined during low-efficiency operation of the fuel cell, thereby enabling the appropriate warm-up, and inhibits a condition, in which the amount of produced water is too large and warm up operation is hindered, to be generated. As a result, the amount of water produced during low-efficiency operation of the fuel cell is correctly determined and the appropriate warm-up is enabled.

Abstract: There is disclosed a fuel cell system or the like capable of sufficiently reducing an exhaust hydrogen concentration even in a case where a fuel cell is operated in a state of a low power generation efficiency. A bypass valve B1 is arranged between an oxidation gas supply path 11 and a cathode-off gas channel 12. In a state in which supply of an oxidation gas to a cathode falls short, pumping hydrogen is included in a cathode-off gas. Therefore, a valve open degree of the bypass valve B1 is regulated, and a flow rate of bypass air is regulated to control the exhaust hydrogen concentration.

Abstract: If subsequent to discontinuing generation by the fuel cell stack it is predicted that evolved water formed by electrochemical reaction of a fuel gas and an oxidant gas during generation may freeze in the membrane-electrode assembly provided to the fuel cell stack, low-level generation (temperature gradient formation control) is carried out until the temperature of the membrane-electrode assembly is relatively higher than the temperature of the separators. This temperature gradient formation control is carried out only for the time period necessary to produce a temperature gradient between the membrane-electrode assembly and the separators, and is quickly discontinued once a temperature gradient is created between the membrane-electrode assembly and the separators. Thus, in a fuel cell system equipped with a fuel cell, reduced energy efficiency of the fuel cell system may be avoided, and low temperature startup may be improved.

Abstract: A process of disassembling a fuel cell 10 supplies a fluid to both a fuel gas conduit 6g and an oxidizing gas conduit 7g. Since outlets of the respective gas conduits 6g and 7g are shielded, the internal pressure or in-passage pressure of the respective gas conduits 6g and 7g gradually rises and eventually exceeds a specific in-passage pressure level for power generation of the fuel cell 10. The high in-passage pressure expands a gas diffusion electrode 4b of a membrane electrode assembly (MEA) 2 and a separator 6, which define the fuel gas conduit 6g, in opposite directions to make a clearance between the gas diffusion electrode 4b and the separator 6. Similarly the high in-passage pressure expands a gas diffusion electrode 5b of the MEA 2 and a separator 7, which define the oxidizing gas conduit 7g, in opposite directions to make a clearance between the gas diffusion electrode 5b and the separator 7.

Abstract: Respective heaters 21 through 24 receive power supply and start heating. The heaters 21 through 24 keep heating sealing layers 8 to or over a softening temperature at which the sealing layers 8 are softened or molten. After the sealing layers 8 are softened or molten to weaken the adhesive force between a pair of separators 6 and 7, the heaters 21 through 24 are detached from a fuel cell 10. The worker then completely separates the pair of separators 6 and 7 from each other with some tool or by hand and removes an MEA 2 from the fuel cell 10.

Abstract: There is disclosed a fuel cell system or the like capable of sufficiently reducing an exhaust hydrogen concentration even in a case where a fuel cell is operated in a state of a low power generation efficiency. A bypass valve is arranged between an oxidation gas supply path and a cathode-off gas channel. In a state in which supply of an oxidation gas to a cathode falls short, pumping hydrogen is included in a cathode-off gas. Therefore, a valve open degree of the bypass valve is regulated, and a flow rate of bypass air is regulated to control the exhaust hydrogen concentration.

Abstract: A fuel cell system has produced water amount detection means that detects the amount of water produced in the fuel cell during low-efficiency operation of the system and gas supply limitation means that limits the amount of gas to be supplied to the fuel cell, based on the detected amount of water. The produced water amount detection means allows the amount of produced water to be correctly determined during low-efficiency operation of the fuel cell, thereby enabling the appropriate warm-up, and inhibits a condition, in which the amount of produced water is too large and warm up operation is hindered, to be generated. As a result, the amount of water produced during low-efficiency operation of the fuel cell is correctly determined and the appropriate warm-up is enabled.

Abstract: Respective heaters 21 through 24 receive power supply and start heating. The heaters 21 through 24 keep heating sealing layers 8 to or over a softening temperature at which the sealing layers 8 are softened or molten. After the sealing layers 8 are softened or molten to weaken the adhesive force between a pair of separators 6 and 7, the heaters 21 through 24 are detached from a fuel cell 10. The worker then completely separates the pair of separators 6 and 7 from each other with some tool or by hand and removes an MEA 2 from the fuel cell 10.

Abstract: A process of disassembling a fuel cell 10 supplies a fluid to both a fuel gas conduit 6g and an oxidizing gas conduit 7g. Since outlets of the respective gas conduits 6g and 7g are shielded, the internal pressure or in-passage pressure of the respective gas conduits 6g and 7g gradually rises and eventually exceeds a specific in-passage pressure level for power generation of the fuel cell 10. The high in-passage pressure expands a gas diffusion electrode 4b of a membrane electrode assembly (MEA) 2 and a separator 6, which define the fuel gas conduit 6g, in opposite directions to make a clearance between the gas diffusion electrode 4b and the separator 6. Similarly the high in-passage pressure expands a gas diffusion electrode 5b of the MEA 2 and a separator 7, which define the oxidizing gas conduit 7g, in opposite directions to make a clearance between the gas diffusion electrode 5b and the separator 7.

Abstract: A method for inspecting a thin film transistor active matrix substrate comprises a step for opposing a probe to the substrate, a step for supplying a dielectric fluid between the substrate and the probe, a step for supplying power to a closed circuit containing the substrate and the probe, and a step for sensing a signal passed through the closed circuit by the power supply. Using this method, a non-contact TFT array substrate inspection apparatus with high throughput, which is also suitable for organic EL substrates, can be realized.

Abstract: A method is provided for synthesizing an arbitrary waveform that approximates a specific waveform. The method includes specifying respective frequencies of component waveforms to be used to generate the arbitrary waveform, the frequencies being less than the maximum frequency needed to synthesize the specific waveform. The method further includes performing a least squares optimization of respective amplitudes and phases of the component waveforms across at least one predetermined time interval. The component waveforms having the amplitudes and phases optimized by the least squares optimization are then summed to produce the arbitrary waveform.