Sit-to-stand transfer detection
    2.
    发明授权

    公开(公告)号:US09933452B2

    公开(公告)日:2018-04-03

    申请号:US14126576

    申请日:2012-06-19

    IPC分类号: G01P15/00 A61B5/11 A61B5/00

    摘要: There is provided a method for identifying a sit-to-stand transfer in measurements of the movement of a user, the method comprising obtaining measurements of the vertical acceleration experienced by the user during movement; obtaining measurements indicating changes in height of a part of the user during movement; processing the measurements of the vertical acceleration to identify candidate movements corresponding to a sit-to-stand transfer by the user; and determining an identified candidate movement as a sit-to-stand transfer where the identified candidate movement coincides with an increase in height. A corresponding apparatus and computer program product are also provided.

    Outdoor lamp
    3.
    外观设计

    公开(公告)号:USD1004162S1

    公开(公告)日:2023-11-07

    申请号:US29743460

    申请日:2020-07-22

    摘要: FIG. 1 is a perspective view of an outdoor lamp showing our new design.
    FIG. 2 is a front elevation view thereof;
    FIG. 3 is a rear elevation view thereof;
    FIG. 4 is a left side elevation view thereof;
    FIG. 5 is a right side elevation view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.

    APPARATUS AND METHODS FOR EXPANDING AND COLLAPSING A ROD

    公开(公告)号:US20220110303A1

    公开(公告)日:2022-04-14

    申请号:US17067711

    申请日:2020-10-11

    申请人: Wei Zhang

    发明人: Wei Zhang

    IPC分类号: A01K87/02

    摘要: Methods and apparatus for expanding a rod from a collapsed position to a formed position are disclosed. One such apparatus includes a plurality of segments for forming the body of the collapsible rod including with each segment coupled to each immediately adjacent segment of the plurality of segments. The apparatus may include a coupler for coupling each segment of the plurality of segments to each immediately adjacent segment of the plurality of segments. The coupler may stretch from a base segment to the tip of the apparatus and may be biased to apply a force to hold the plurality of segments in a formed position and to urge the plurality of segments into a formed position from a collapsed position. In the formed position, the plurality of segments may be aligned end-to-end to form a rod and in the collapsed position, the plurality of segments may be folded against each other such that cylindrical walls of each of the plurality of segments are positioned adjacent each other.

    Convertible Bullet-proof Backpack
    5.
    发明申请

    公开(公告)号:US20180295974A1

    公开(公告)日:2018-10-18

    申请号:US15731045

    申请日:2017-04-12

    申请人: Wei Zhang

    发明人: Wei Zhang

    摘要: A convertible bullet-proof backpack and vest includes a body section divided into a front portion, a middle portion, and back portion. The middle portion has a head slot opening, and the front and back portions have respective sections of bullet-proof fabric integrated therein. A zipper runs around an outer perimeter of the front and back portions. In a backpack configuration, the front portion and the back portion fold toward each other and the zipper secures the outer perimeters of the front portion and the back portion together thereby forming a hollow backpack interior between them. In a bullet-proof vest configuration, the zipper is unzipped thereby allowing a user to insert their head through the head slot opening such that the front portion hangs in front of a torso of the user and the back portion hangs behind the torso of the user.

    APPARATUS AND METHOD FOR TREATING MALE IMPOTENCE

    公开(公告)号:US20180177625A1

    公开(公告)日:2018-06-28

    申请号:US15820401

    申请日:2017-11-21

    申请人: Wei Zhang

    发明人: Wei Zhang

    IPC分类号: A61F5/41

    CPC分类号: A61F5/41 A61F2005/411

    摘要: The present invention strategically utilizes the sturdiness of thin wires enwrapped inside a thick layer of soft material such as silicone rubber which is smoother and softer than human tissue. Therefore, the device doesn't cause any damage or side effect and feels comfortable to user. The exposure of skin is 90% or higher, therefore solves the lack of sensation issue faced by prior art devices. The device is hard and yet flexible, the side walls or double bars are positioned toward ventral side of the device so that it is pleasing to the eye during use in addition to feeling good by the user.

    Electron donor-fullerene conjugated molecules for organic photovoltaic cells
    8.
    发明授权
    Electron donor-fullerene conjugated molecules for organic photovoltaic cells 有权
    用于有机光伏电池的电子供体 - 富勒烯共轭分子

    公开(公告)号:US09478746B2

    公开(公告)日:2016-10-25

    申请号:US13911351

    申请日:2013-06-06

    IPC分类号: H01L51/00 H01L51/42

    摘要: A photovoltaic cell has an active area formed electron donor-fullerene conjugated molecules. The electron donor is formed of a polymer, which is conjugated with an electron acceptor, such as fullerene. By conjugating the fullerene, such as C60, with electron donor moieties, such as that of the polymer, double channels are formed therebetween, whereby one channel provides hole transport and the other channel provides electron transport. As a result, the electronic coupling between the fullerene and the electron donor moiety leads to increased short-circuit current density (Jsc) and increased open-circuit voltage (Voc), resulting in high power conversion efficacy (PCE) in the solar cell.

    摘要翻译: 光伏电池具有形成的电子供体 - 富勒烯共轭分子的有源区。 电子给体由与电子受体(例如富勒烯)共轭的聚合物形成。 通过将诸如C60的富勒烯与诸如聚合物的电子供体部分共轭,在其间形成双通道,由此一个通道提供空穴传输,另一个通道提供电子传输。 结果,富勒烯和电子给体部分之间的电子耦合导致短路电流密度(Jsc)增加和开路电压(Voc)增加,导致太阳能电池中的高功率转换效率(PCE)。