摘要:
An ultra precise polishing method includes controlling an irradiation time of a surface position of an object to be processed irradiated by a gas cluster ion beam. A profile is created and polished on the surface of the object to be processed by controlling irradiation of the gas cluster ion beam. An ultra precise polishing apparatus includes an irradiating device for irradiating a surface of an object to be processed by a gas cluster ion beam. A positioning device is provided for changing a surface position of the object to be processed, which is irradiated by the gas cluster ion beam by moving the irradiating device and the object to be processed relative to each other. A control device is provided for controlling the irradiation time of a surface position of the object to be processed irradiated by the gas cluster ion beam.
摘要:
A plurality of individual fuel cells are connected in series with each other to construct the fuel cell. The fuel cell is diagnosed on the basis of an average output voltage Va of the individual cells, their standard deviation σ, individual output voltages, their variances σ2 of vibration components and their voltage drop speed of their non-vibration components. For example, if Va is within a normal range and moreover at least one of the individual output voltages is not within a normal range, it is diagnosed that water blocks the fuel electrode. If Va is not within a normal range and moreover σ is within a normal range, it is diagnosed that the electrolyte film is dried. Further, if Va is not within a normal range and moreover σ is not within a normal range, it is diagnosed that the fuel (hydrogen) supply is insufficient.
摘要:
Provided is a fuel cell system capable of preventing a drop of power stemming from the water residence at an electrode portion or the shortage of water content in an electrolyte membrane. The system is equipped with an air pressure regulating valve for adjusting the pressure of air to be supplied to a fuel cell stack and a hydrogen pressure regulating valve for adjusting the pressure of hydrogen. In this system, the pressure difference between the air pressure and the hydrogen pressure is controlled through the regulating valves so that a minimum hydrogen pressure becomes higher than a maximum air pressure, or so that a minimum air pressure becomes higher than a maximum hydrogen pressure.
摘要:
A novel wipe set and a novel wiping method in which the wipe set is used are provided. With the wipe set comprising a first wipe impregnated with 50 to 200 mg of a sodium hypochlorite aqueous solution per gram of the wipe, a second wipe impregnated with 30 to 110 mg of a sodium thiosulfate aqueous solution per gram of the wipe, and a third wipe impregnated with 4 to 110 mg of a sodium hydroxide aqueous solution per gram of the wipe as well as by the wiping method in which the wipe set of the present invention is used, an anticancer agent spilled on a working table, for example, can be removed effectively.
摘要:
A fuel cell system includes: an AC impedance measuring unit which measures an AC impedance of a fuel cell at a scavenging start and measures an AC impedance of the fuel cell when a predetermined time has elapsed from the scavenging start; a scavenging execution time estimation unit which estimates a scavenging execution time based on the AC impedance measured at the scavenging start, the AC impedance measured at the time when the predetermined time has elapsed from the scavenging start and the predetermined time; and a limit unit which limits the scavenging execution time to a predetermined maximum scavenging time if the scavenging execution time exceeds the maximum scavenging time.
摘要:
An output shaft is arranged to be lateral and parallel to engine input shafts and a motor input shaft. An engine side gear mechanism for transmitting a power of the engine input shafts to the output shaft is provided. A motor side gear mechanism for transmitting a power of the motor input shaft to the output shaft is provided. An input side clutch engages and disengages the engine input shafts and the motor input shaft. When the input side clutch is engaged, the power transmission between a position where the engine side gear mechanism is arranged on the engine input shafts and a position where the motor side gear mechanism is arranged on the motor input shaft is invariably possible.
摘要:
A fuel cell system includes: an AC impedance measuring unit which measures an AC impedance of a fuel cell at a scavenging start and which measures an AC impedance of the fuel cell at a time when a predetermined time has elapsed from the scavenging start; a scavenging execution time estimation unit which estimates a scavenging execution time based on the AC impedance measured at the scavenging start, the AC impedance measured at the time when the predetermined time has elapsed from the scavenging start, and the predetermined time; and an error processing unit which forcibly terminates scavenging processing if a fuel cell voltage becomes lower than a predetermined threshold value during a period from the scavenging start to the time when the predetermined time has elapsed from the scavenging start.
摘要:
A fuel cell system includes: an AC impedance measuring unit which measures an AC impedance of a fuel cell at a scavenging start and measures an AC impedance of the fuel cell when a predetermined time has elapsed from the scavenging start; a scavenging execution time estimation unit which estimates a scavenging execution time based on the AC impedance measured at the scavenging start, the AC impedance measured at the time when the predetermined time has elapsed from the scavenging start and the predetermined time; and a limit unit which limits the scavenging execution time to a predetermined maximum scavenging time if the scavenging execution time exceeds the maximum scavenging time.
摘要:
A glass substrate processing method includes irradiating laser light L onto a glass substrate 1 such that the laser light L is focused within the glass substrate 1, thereby forming a high density area 3 that has a higher density than areas where the laser light L is not irradiated around the portion where the laser light L is focused; and performing chemical etching on the glass substrate 1 using an etching solution such that at least a portion of the high density area is allowed to remain, thereby forming a projection 2 on a surface 1a of the glass substrate 1.
摘要:
A fuel cell generates electric power based on electrochemical reaction of reaction gases. A gas feed stopping device stops the feed of reaction gases into the fuel cell. At the time the power generation by the fuel cell is terminated, the fuel cell continues power generation for a while under a condition that the feed of one of the reaction gases is stopped by the gas feed stopping means. With this operation, the residual reaction gas in the fuel cell is consumed smoothly while the fuel cell continues power generation after the feed of one reaction gas is stopped. The electric potential of a cathode electrode decreases promptly. Deterioration of the cathode electrode is surely prevented.