METHOD FOR CONTROLLING FUEL CELL DEVICE

    公开(公告)号:US20230084323A1

    公开(公告)日:2023-03-16

    申请号:US17798359

    申请日:2020-12-22

    摘要: A method of controlling a fuel cell device includes: a step of determining whether impedance between a fuel electrode and an oxidant electrode is greater than a predetermined threshold during a steady operation of the fuel cell device; a step of decreasing a flow rate of a gas circulating via a circulation passage connecting a gas introduction passage of the gas supply unit to a gas discharge passage when the impedance is greater than the predetermined threshold; a step of measuring the voltage between the fuel electrode and the oxidant electrode when the impedance is equal to or less than the predetermined threshold, and determining whether the voltage is equal to or less than a first predetermined threshold; and a step of increasing the flow rate of the gas circulating via the circulation passage when the voltage is equal to or less than the first predetermined threshold.

    ANTIBACTERIAL MOLDED ARTICLE AND METHOD FOR PRODUCING SAME

    公开(公告)号:US20230071252A1

    公开(公告)日:2023-03-09

    申请号:US17760199

    申请日:2021-01-29

    IPC分类号: B29C59/14 B29C59/00

    摘要: An antibacterial molded article that can further increase antibacterial performance. The present invention for achieving the above object is related to an antibacterial molded article including a resin molded article. The resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having a prominent protrusion ratio of 3% or greater and 25% or less. Alternatively, the resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having: a maximum height of profile defined by JIS B 0601 (2013) of 100 nm or greater and less than 500 nm, and a plurality of capture protrusions having a height of not less than half the maximum height of profile (Rz), in which an average distance between the plurality of capture protrusions is 1.5 μm or greater and 7 μm or less.

    PHASED-ARRAY ANTENNA DEVICE
    3.
    发明申请

    公开(公告)号:US20230045598A1

    公开(公告)日:2023-02-09

    申请号:US17784246

    申请日:2020-06-04

    IPC分类号: H01Q3/26 G01R29/08

    摘要: A phased-array antenna device with a long operating life without mechanical parts, has a high spatial resolution, and realizes microwave observation of broadband and highfrequency resolution. The phased-array antenna device performs direct A/D conversion through a BPF on an antenna analog signal amplified by an amplifier. Then, the device performs a second cross-spectrum calculation after conversion into complex frequency data through FFT. To detect a weak electromagnetic wave, the device repeatedly performs a second FFT over a long period and lastly performs integration.

    INFORMATION PROCESSING DEVICE, DISPLAY DEVICE, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM

    公开(公告)号:US20230022975A1

    公开(公告)日:2023-01-26

    申请号:US17791716

    申请日:2021-01-29

    发明人: Eiichi YOSHIKAWA

    IPC分类号: G01W1/10

    摘要: According to an embodiment, an information processing device includes an acquirer configured to acquire at least one type of data within meteorological observation data indicating weather at a target location observed at each of a plurality of observation times and meteorological prediction data indicating the weather at the target location predicted using a meteorological prediction model, a deriver configured to derive an index value indicating a threat level of lightning of the target location at each of the plurality of observation times on the basis of the meteorological observation data and the like acquired by the acquirer, and a predictor configured to input the index value derived by the deriver to a model for outputting a future index value when a past or present index value is input and predict a threat of lightning of the target location at a future time later than the observation time on the basis of an output result of the model to which the index value has been input.

    Observation apparatus, observation method, and program

    公开(公告)号:US11555879B2

    公开(公告)日:2023-01-17

    申请号:US16497249

    申请日:2018-03-22

    发明人: Toshihiro Sezai

    IPC分类号: G01S3/58 G01S3/00

    摘要: A signal processing unit performs, on the basis of a received electric field signal from an antenna by which a beam is scanned within a predetermined azimuthal angle and a signal of an azimuthal angle of the scanned beam, a Fourier transform on a distribution function of the received electric field signal into a frequency domain of the azimuthal angle, divides a signal according to a first spectral function by a signal according to a second spectral function, the first spectral function being obtained by performing the Fourier transform, the second spectral function being obtained by performing a Fourier transform on an antenna pattern of the antenna into a frequency domain of the azimuthal angle, and subjects the divided signal to fitting by using Prony's method with exponential functions including real parts and imaginary parts in arguments.

    FAILURE DIAGNOSTIC SYSTEM FOR SPACECRAFT LIQUID PROPULSION SYSTEM AND FAILURE DIAGNOSTIC METHOD FOR SPACECRAFT LIQUID PROPULSION SYSTEM

    公开(公告)号:US20220341375A1

    公开(公告)日:2022-10-27

    申请号:US17753709

    申请日:2021-02-02

    摘要: Provided is a failure diagnostic system for a spacecraft liquid propulsion system that enables to accurately diagnose a failure in a spacecraft and a failure diagnostic method for the spacecraft liquid propulsion system. This spacecraft liquid propulsion system includes a plurality of thrusters, and a supply pipe connected to the thrusters. This system includes a pressure sensor that detects an inner pressure of the supply pipe as time-series data, a frequency spectrum conversion unit that converts the time-series data into data of a frequency spectrum, a storage unit that stores data of a frequency spectrum generated based on an analytical model by computer simulation or a test result of a testing device as a data set, a comparator that compares the data set with the data of the frequency spectrum generated by the frequency spectrum conversion unit, and a determining unit that determines a failure in any one of the plurality of thrusters according to a comparison result of the comparator.

    Methane Synthesis Device
    9.
    发明申请

    公开(公告)号:US20220267232A1

    公开(公告)日:2022-08-25

    申请号:US17708838

    申请日:2022-03-30

    摘要: An object is to provide a methane synthesis device having as a whole a reduced size and a simplified configuration. A methane synthesis device 100 is composed of respective components from an end plate 2 at the leftmost side to an end plate 23 at the rightmost side and is compactly assembled by fastening plural bolts and nuts to bring these individual components into tightly contact with each other. The components may be divided into a Sabatier reaction unit of signs 3 to 9, a water electrolysis unit of signs 13 to 19, and other components. Hydrogen gas generated in the water electrolysis unit is mixed with carbon dioxide gas and supplied to the Sabatier reaction unit, and methane is synthesized in the Sabatier reaction unit. The size of the device is reduced as a whole and configuration is simplified by integrally stacking the water electrolysis unit, the Sabatier reaction unit, a carbon dioxide supplying unit, and a hydrogen gas supplying unit.

    Supersonic aircraft and method of reducing sonic booms

    公开(公告)号:US11420759B2

    公开(公告)日:2022-08-23

    申请号:US17044178

    申请日:2019-03-25

    摘要: [Object] To provide a supersonic aircraft and a method of reducing sonic booms, by which sonic booms due to engine exhaust can be reduced.
    [Solving Means] A supersonic aircraft includes: a pair of engine nacelles 12R, 12L mounted on a fuselage 11 of an airframe 10; fins 13R, 13L as a pair of shielding plates that inhibits engine exhaust 15 discharged from jet engines (not shown) accommodated in the engine nacelles 12R, 12L from wrapping downward around the airframe 10; and a pair of horizontal tails 14R, 14L disposed behind the engine nacelles 12R, 12L. The fins 13R, 13L are disposed on the horizontal tails 14R, 14L so as to sandwich the engine exhaust 15, respectively.