CONTROL OF FORCED OSCILLATIONS
    1.
    发明公开

    公开(公告)号:US20240332972A1

    公开(公告)日:2024-10-03

    申请号:US18277865

    申请日:2022-02-18

    Abstract: A method of isolating or suppressing forced oscillations in a power grid by utilising a wind turbine system comprising a wind turbine for capturing wind power, a generator driven by the wind turbine, and a power converter configured to control the rotational speed of the generator for controlling a supply of active power to the power grid. The power converter is further configured to supply reactive power to the power grid independently from the supply of active power. The method comprising the steps of: obtaining measurements of a forced oscillation occurring within the power grid; controlling the converter to supply active and reactive corrective oscillating power to the power grid in response to the measured forced oscillation such that the corrective oscillating power suppresses the forced oscillations.

    LASER SYSTEM
    2.
    发明公开
    LASER SYSTEM 审中-公开

    公开(公告)号:US20240235146A9

    公开(公告)日:2024-07-11

    申请号:US18264956

    申请日:2022-02-11

    Abstract: A single arm laser system comprising a first in-phase quadrature modulator, IQM. The first IQM is configured to receive a single frequency fibred laser beam from a frequency locked laser seed, generate a first single side-band frequency based on a carrier frequency of the single frequency fibred laser beam and suppress the carrier frequency, and output a first fibre laser beam having a single side-band suppressed carrier frequency. The single arm laser system also comprises a second IQM in line with the first IQM. The second IQM is configured to receive the first fibre laser beam from the first IQM, generate a second single side-band frequency based on the first single side-band frequency and maintain the first single side-band frequency as the carrier frequency, and output a second fibre laser beam having the first and second single side band frequencies.

    PREPARATION OF COLD ATOM CLOUDS FOR MEASURING GRAVITY GRADIENT

    公开(公告)号:US20240230947A9

    公开(公告)日:2024-07-11

    申请号:US18264951

    申请日:2022-02-11

    CPC classification number: G01V7/02 G21K1/006

    Abstract: An apparatus for generating vertically separated atom clouds. The apparatus comprises an optical system comprising an arrangement of lenses and optics. The optical system is configured to trap and cool atoms to form a cold atom cloud; select the hyperfine level of the atoms; trap atoms of the cold atom cloud in a standing wave optical lattice; and vertically split the cold atom cloud into a high cold atom cloud and a low cold atom cloud. The splitting comprises splitting the cold atom cloud into two clouds by launching atoms of the cold atom cloud in opposite directions to form a high cold atom cloud and a low cold atom cloud, and catching the low cold atom cloud up to reach the same velocity as the high cold atom cloud.

    PREPARATION OF COLD ATOM CLOUDS FOR MEASURING GRAVITY GRADIENT

    公开(公告)号:US20240134084A1

    公开(公告)日:2024-04-25

    申请号:US18264951

    申请日:2022-02-11

    CPC classification number: G01V7/02 G21K1/006

    Abstract: An apparatus for generating vertically separated atom clouds. The apparatus comprises an optical system comprising an arrangement of lenses and optics. The optical system is configured to trap and cool atoms to form a cold atom cloud; select the hyperfine level of the atoms; trap atoms of the cold atom cloud in a standing wave optical lattice; and vertically split the cold atom cloud into a high cold atom cloud and a low cold atom cloud. The splitting comprises splitting the cold atom cloud into two clouds by launching atoms of the cold atom cloud in opposite directions to form a high cold atom cloud and a low cold atom cloud, and catching the low cold atom cloud up to reach the same velocity as the high cold atom cloud.

    FACE MASK
    9.
    发明公开
    FACE MASK 审中-公开

    公开(公告)号:US20230363476A1

    公开(公告)日:2023-11-16

    申请号:US18029585

    申请日:2021-09-22

    CPC classification number: A41D13/1138 A61B5/1075 A61B5/1077

    Abstract: A method for determining geometry of a face mask comprising a main body and a seal configured to engage a nasal region, cheeks and a chin of a user. The method comprises collecting (402) facial data of the user comprising a point cloud comprising a plurality of points on a skin surface in a nasal region, eye region and chin region of the user; determining (406), based on the facial data, in at least one of the eye region and the chin region of the user, an estimated face size of the user; determining (408), based on the facial data comprising the plurality of points in the nasal region, a best-fit Gaussian curve to a profile of a nose of the user; and using the estimated face size of the user and the determined Gaussian curve to select (410) parameters for a profile geometry of the face mask.

    Stimuli-responsive surfaces
    10.
    发明授权

    公开(公告)号:US11768199B2

    公开(公告)日:2023-09-26

    申请号:US16603504

    申请日:2018-04-09

    Inventor: Paula Mendes

    CPC classification number: G01N33/543 G01N2400/02 G01N2458/10

    Abstract: A stimuli-responsive surface (3) comprising a substrate (20) on which is located a switchable molecule (2) which has a functional moiety (22) associated therewith, wherein the switchable molecule (2) has a first equilibrium state (2A) in which access to the functional moiety (22) is inhibited and a second stimulated state (2B), in which access to the functional moiety (22) is permitted.

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