Anti-Drone Firework Device
    1.
    发明申请

    公开(公告)号:US20230085735A1

    公开(公告)日:2023-03-23

    申请号:US17840407

    申请日:2022-06-14

    IPC分类号: F41H11/00 F42B4/00

    摘要: A counter-swarm firework includes a shell casing, multiple streamers positioned in the shell casing, a burst charge positioned in the shell casing and configured to disperse the multiple streamers from the shell casing when discharged, a pusher plate positioned in the shell casing between the burst charge and the multiple streamers, a fire suppressant layer positioned between the burst charge and the pusher plate, and a kick charge configured to launch the shell casing and its contents prior to discharging the burst charge. The fire suppression layer may be configured to suppress heat generated by the discharge of the burst charge.

    RECONFIGURABLE ANTENNA ARRAY OF INDIVIDUAL RECONFIGURABLE ANTENNAS

    公开(公告)号:US20220123465A1

    公开(公告)日:2022-04-21

    申请号:US17566145

    申请日:2021-12-30

    摘要: Among other things, a reconfigurable antenna array (RAA) includes individual pattern reconfigurable antennas (PRA). Each of the PRAs has (a) an antenna, (b) components controllable to generate and effect any of two or more modes of the PRA, the modes having respectively different steered radiation patterns, and (c) inputs to receive drive signals for the antenna and control signals for the controllable components. Control circuitry has outputs coupled to the inputs of the PRAs to drive the antennas of the PRAs to form an array beam having an array peak in a particular direction and at the same time to deliver control signals for the controllable components to effect a selected mode of each of the PRAs for which the steered radiation pattern has a peak in the particular direction of the array beam and has one or more nulls in the directions of one or more of the side-lobes of the array beam.

    Compositions and methods for zika virus characterization and vaccine development

    公开(公告)号:US11254953B2

    公开(公告)日:2022-02-22

    申请号:US16388742

    申请日:2019-04-18

    发明人: Young-Min Lee

    IPC分类号: C12N7/00 C12N15/86 A61K39/12

    摘要: The present disclosure relates to compositions and methods for investigating Zika virus (ZIKV) biology and pathogenicity. The present disclosure provides genetically stable viral vectors to produce functional RNA transcripts of ZIKV cDNAs. In particular, the present disclosure provides full-length infectious cDNAs as bacterial artificial chromosomes for spatiotemporally distinct and genetically divergent ZIKVs. The present disclosure also provides methods of generating a genetically engineered attenuated ZIKV using the genetically stable viral vectors described herein.

    Grating magneto optical trap
    6.
    发明授权

    公开(公告)号:US10531554B2

    公开(公告)日:2020-01-07

    申请号:US16290521

    申请日:2019-03-01

    发明人: Eric Imhof

    摘要: A three-dimensional magneto-optical trap (3D GMOT) configured to trap a cold-atom cloud is disclosed. The 3D GMOT includes a single input light beam having its direction along a first axis, an area along a second and third axis that are both normal to the first axis, and a substantially flat input light beam intensity profile extending across its area. The 3D GMOT may also include a circular, diffraction-grating surface positioned normal to the first axis and having closely adjacent grooves arranged concentrically around a gap formed in its center. The circular, diffraction-grating surface is configured to diffract first-order light beams that intersect within an intersection region that lies directly above the gap and suppresses reflections and diffractions of all other orders. The 3D GMOT may further include a quadrupole magnetic field with its magnitude being zero within the intersection region.

    Mechanical Solar Tracker
    7.
    发明申请

    公开(公告)号:US20190280642A1

    公开(公告)日:2019-09-12

    申请号:US15913672

    申请日:2018-03-06

    IPC分类号: H02S20/32 F24S30/458

    摘要: In embodiments, a mechanical solar tracker disclosed herein includes a frame, an elevation cam with an elevation cam surface attached to the frame, and a rotation drive mechanically coupled to the frame. A collector carriage is coupled to the rotation drive and configured to rotate circumferentially around a vertical axis. Also, a collector is connected to the collector carriage and a hinge is coupled between the collector and the collector carriage wherein the hinge is configured to rotate the collector about a horizontal plane at a pivot point. Additionally, a cam follower is coupled between the collector and the elevation cam and the cam follower is configured to translate, based on a surface input from the elevation cam surface, rotation of the collector about the pivot point to track the sun's direction, by tracing the elevation cam surface with the cam follower.

    Drug target and construct for Japanese encephalitis virus infection

    公开(公告)号:US10369209B2

    公开(公告)日:2019-08-06

    申请号:US15303375

    申请日:2015-04-10

    申请人: Young-Min Lee

    发明人: Young-Min Lee

    摘要: A group of mosquito-borne flaviviruses that cause fatal encephalitis in humans is among the most important of all emerging human pathogens of global significance. This group includes Japanese encephalitis virus (JEV), West Nile virus, St. Louis encephalitis virus, and Murray Valley encephalitis virus. In the present disclosure, the first reverse genetics system has been developed for SA14-14-2, a live JE vaccine that is most commonly used in most JE-endemic areas, by constructing an infectious bacterial artificial chromosome that contains the full-length SA14-14-2 cDNA. Using this infectious SA 14-14-2 cDNA, combined with a mouse model for JEV infection, a key viral neurovirulence factor has been discovered that is a conserved single amino acid in the ij hairpin adjacent to the fusion loop of the viral E glycoprotein, which regulates viral infectivity into neurons within the central nervous system.

    Dynamic Inductive Wireless Power Transmitter System With A Power Transmitter Module

    公开(公告)号:US20190089195A1

    公开(公告)日:2019-03-21

    申请号:US15711722

    申请日:2017-09-21

    摘要: A power transmitter module is disclosed. In embodiments, a power transmitter module includes a module LC input filter configured to receive regulated DC current, a module transmitter circuit configured to receive the regulated DC current from the module LC input filter and generate a high-frequency AC current. A power transmitter module further includes a module transmitter coil and compensation circuit comprising a transmitter coil, and a first capacitor in parallel with the transmitter coil. The module transmitter coil and compensation circuit are configured to receive the high-frequency AC current from the module transmitter circuit and generate a time-varying magnetic field emitted from the transmitter coil. Additionally, a power transmitter module further includes a module controller configured to receive a power transmission input signal and further configured to control a state of the module transmitter circuit based on the power transmission input signal.