Abstract: A dental prosthetic device design method according to an aspect of the present invention is a method for designing a dental prosthetic device by a computer, the method including: acquiring scan data of maxillary and mandibular dentitions; determining a restoration site of a tooth, based on the scan data; reading out plural pieces of attrition shape data of a tooth related to the restoration site, from maxillary and mandibular tooth shape data sets having plural pieces of attrition shape data with different degrees of attrition for each tooth of the maxillary and mandibular dentitions; selecting attrition shape data from among the plural pieces of attrition shape data, in accordance with the degrees of attrition of the maxillary and mandibular dentitions; placing the selected attrition shape data at the restoration site; and creating shape data of a dental prosthetic device from the attrition shape data placed at the restoration site.

Abstract: A method of detecting degradation of a membrane electrode assembly in a fuel cell system is provided. In the method, it is possible to detect degradation (cross leakage) of a fuel cell. In the state where variation of a load is suppressed, variation of the gas pressure where a predetermined amount of the fuel gas is supplied from a fuel tank to a fuel cell is measured by a pressure sensor provided in a fuel gas circulation channel extending from the fuel gas outlet to the fuel gas inlet.

Abstract: A controller allows an injector to inject a fuel gas when a supply flow rate of an oxygen-containing gas reaches a set flow rate for the oxygen-containing gas supplied at start-up in a state where a supply-side stop valve and a discharge-side stop valve are closed, and thereafter opens the supply-side stop valve and the discharge-side stop valve.

Abstract: A fuel cell system including an air discharge valve provided in an air discharge path, through which air discharged from a fuel cell stack flows, a bypass valve provided in a bypass path connecting an air supply path and the air discharge path and bypassing the fuel cell stack, and a controller for controlling the air discharge valve to make an opening degree of the air discharge valve smaller than full opening, controlling the bypass valve to make the opening degree of the bypass valve larger than fully closure, and controlling a compressor to supply air to the air supply path through which the air to be supplied to the fuel cell stack flows.

Abstract: A fuel cell system includes: a reaction gas supply unit configured to supply a reaction gas to a fuel cell stack; a humidifier configured to transfer moisture from an off-gas discharged from the fuel cell stack to the reaction gas; and a controller configured to control the reaction gas supply unit so as to regulate a supply amount of the reaction gas, wherein the controller is configured to acquire a temperature of the humidifier and set the supply amount of the reaction gas based on a target power generation amount of the fuel cell stack, and in a case where the temperature of the humidifier is equal to or lower than a prescribed warm-up determination value, the controller executes warm-up control to increase the supply amount of the reaction gas as compared with a case where the temperature of the humidifier is higher than the warm-up determination value.

Abstract: An ECU of a fuel cell system determines whether or not temperature information exceeds a temperature threshold for determination when receiving a signal related to power generation stop of a fuel cell stack during operation of a moving body. When the temperature information exceeds the determination temperature threshold, the ECU performs a stop control for stopping power generation of the fuel cell stack. On the other hand, when the temperature information is equal to or lower than the determination temperature threshold, the ECU performs an idle control for generating electric power smaller than electric power consumed by the air pump.

Abstract: A fuel cell system includes a first battery, a second battery having a second battery voltage larger than the first battery voltage, and a step-down device for stepping down a voltage of the second battery. When the voltage supplied from the first battery to the control device is equal to or lower than the voltage threshold value, the control device supplies electric power to the bypass valve from the step-down device to perform opening degree learning for the bypass valve.

Abstract: The fuel cell system includes a fuel cell stack, a humidifier provided on an oxygen-containing gas supply flow path to humidify an oxygen-containing gas flowing through the oxygen-containing gas supply flow path, a discharge path stop valve provided on an oxygen-containing gas discharge flow path and configured to be opened during power generation by the fuel cell stack, and a pressure regulator provided downstream of the discharge path stop valve to regulate pressure so that it is higher on the upstream side than the downstream side.

Abstract: During startup of a fuel cell system, feed forward control is performed to increase the rotation number of an electric auxiliary device (compressor) to a modified steady state rotation number while maintaining a steady state rotation acceleration rate of the electric auxiliary device. In this manner, the overshoot amount is suppressed to an allowable overshoot amount. Otherwise, feed forward control is performed to increase the rotation number of the electric auxiliary device to a modified low steady state rotation number while maintaining a low steady state rotation acceleration rate. In this manner, the overshoot amount is suppressed to an allowable overshoot amount.

Abstract: During startup of a fuel cell system, a control device adjusts opening degrees of a bypass valve, an inlet side stop valve, and an outlet side stop valve in a manner that the flow rate of an oxygen-containing gas in a bypass channel supplied from an oxygen-containing gas supply apparatus becomes larger than the flow rate in an oxygen-containing gas supply channel and an oxygen-containing off gas discharge channel. In this manner, during startup of the fuel cell system, while diluting concentration of a fuel gas remaining at a cathode of the fuel cell stack, the fuel gas is discharged to the outside in a short period of time.

Abstract: The fuel cell system includes a control unit that calculates the flow rate of the oxygen-containing gas flowing through the supply passage based on the opening degree of the bypass valve, the opening degree of the stop valve, and the state of the oxygen-containing gas supply in the oxygen-containing gas supply unit, and determines that the measurement value of the flow rate measurement unit is not normal when the difference between the calculation value and the measurement value by the flow rate measurement unit is equal to or larger than a predetermined amount.

Abstract: A control unit of a fuel cell system controls water drainage from a drain channel by controlling a drain valve based on a water accumulation state acquired by a water accumulation state acquisition part, and controls an amount of oxygen-containing gas supplied by an oxygen-containing gas supply part.

Abstract: If a medium outlet temperature of a heat exchange medium is not less than a threshold temperature, the heat exchange medium is supplied to a medium flow field of a fuel cell stack at a predetermined flow rate, and if the medium outlet temperature is less than the threshold temperature, in correspondence with the decrease of a medium outlet temperature, the heat exchange medium is supplied to the medium flow field at a flow rate decreased from the predetermined flow rate so as to prevent increase in the differential pressure between an anode flow field and the medium flow field in the fuel cell stack.

Abstract: A control device of a fuel cell system controls a temperature adjusting device in a manner that vapor in the oxygen-containing off-gas discharged from a fuel cell stack is saturated.

Abstract: If coolant temperature remains higher than a temperature threshold for a first predetermined time period (step S5: YES) and thereafter an electrical resistance value remains higher than a resistance threshold for a second predetermined time period (step S7: YES), a control device determines that a fuel cell stack is in a dry condition and performs the process of limiting a power generation amount of the fuel cell stack (step S8).

Abstract: A method includes: acquiring scan data on a tooth; drawing an edge line closed; deleting scan data on the edge of the tooth; disposing data in which multiple plates are disposed at intervals along the edge line while superimposing the data on the scan data; creating a first profile curve and a second profile curve indicating an outline of the scan data across a part deleted in each of sections of the scan data, the sections being taken along the corresponding multiple plates in the data; extending the first profile curve and the second profile curve in a direction of compensating for the scan data on the part deleted in each of the sections of the scan data; and restoring the edge of the tooth based on the first profile curve and the second profile curve that are extended in each of the sections of the scan data.

Abstract: A fuel cell system executes a first valve drive operation by causing a power supply unit to output the first voltage to drive an electric-operated valve to open at a time of starting power generation by a fuel cell stack, and executes a second valve drive operation by causing the power supply unit to output the second voltage to drive the electric-operated valve to open in a case where the electric-operated valve is in a closed state even after execution of the first valve drive operation.

Abstract: A method of detecting degradation of a membrane electrode assembly of a fuel cell is provided. In the method, it is possible to detect degradation (cross leakage) of the fuel cell. In the measurement step, the pressure drop value of the pressure of the fuel gas which decreases in the power generation state after discharging of the predetermined amount of the fuel gas, in each predetermined period of time is measured a plurality of times. Thereafter, in the determination step, it is determined that the membrane electrode assembly has been degraded in the case where the minimum pressure drop value, among a plurality of pressure measurement values, exceeds a threshold value.

Abstract: A composition having cell-derived physiological activity is provided. The composition according to the present invention contains a treated product of megakaryocytes or a culture of the megakaryocytes.

Abstract: A fuel cell system includes: a reaction gas supply unit configured to supply a reaction gas to a fuel cell stack; a humidifier configured to transfer moisture from an off-gas discharged from the fuel cell stack to the reaction gas; and a controller configured to control the reaction gas supply unit so as to regulate a supply amount of the reaction gas, wherein the controller is configured to acquire a temperature of the humidifier and set the supply amount of the reaction gas based on a target power generation amount of the fuel cell stack, and in a case where the temperature of the humidifier is equal to or lower than a prescribed warm-up determination value, the controller executes warm-up control to increase the supply amount of the reaction gas as compared with a case where the temperature of the humidifier is higher than the warm-up determination value.