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167 条记录 (耗时 0.033 秒)

    Solid catalyst component for polymerization of ethylene, preparation thereof and a catalyst containing the same
    2.
    发明授权
    Solid catalyst component for polymerization of ethylene, preparation thereof and a catalyst containing the same 有权
    用于乙烯聚合的固体催化剂组分，其制备方法和含有它的催化剂

    公开(公告)号：US07091289B2

    公开(公告)日：2006-08-15

    申请号：US10455256

    申请日：2003-06-05

    申请人： Zhiwu Wang ,  Zhong Tan ,  Tianyi Li ,  Xingbo Li ,  Kai Zhang ,  Peng Kou ,  Haixiang Cui ,  Zhengyang Guo ,  Liang Pan

    发明人： Zhiwu Wang ,  Zhong Tan ,  Tianyi Li ,  Xingbo Li ,  Kai Zhang ,  Peng Kou ,  Haixiang Cui ,  Zhengyang Guo ,  Liang Pan

    IPC分类号： C08F4/646 ,  C08F4/654 ,  C08F4/642

    CPC分类号： C08F210/16 ,  C08F110/02 ,  C08F10/00 ,  C08F4/651 ,  C08F4/6557 ,  C08F4/6543 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24

    摘要： The present invention provides a catalyst component used for homopolymerization or co-polymerization of ethylene, comprising at least one suitable electron donor compound supported on a composition containing magnesium and titanium, wherein the electron donor compound is selected from the group consisting of aliphatic ethers, alicyclic ethers, aromatic ethers, aliphatic ketones and alicyclic ketones, and wherein the composition containing magnesium and titanium is prepared by dissolving a magnesium compound into a solvent system to form a homogeneous solution and then contacting the solution with a titanium compound in the presence of a precipitation aid to precipitate the composition. The present invention also relates to a method for the preparation of said catalyst component and a catalyst comprising thereof, and to use of the catalyst in homopolymerization of ethylene or co-polymerization of ethylene with at least one C3–C8 α-olefin.

    摘要翻译： 本发明提供了用于乙烯均聚或共聚的催化剂组分，其包含负载在含有镁和钛的组合物上的至少一种合适的电子给体化合物，其中电子给体化合物选自脂族醚，脂环族 醚类，芳香族醚类，脂族酮类和脂环族酮类，其中含镁和钛的组合物是通过将镁化合物溶解在溶剂体系中以形成均匀溶液制备的，然后在沉淀存在下使该溶液与钛化合物接触 有助于沉淀组合物。 本发明还涉及一种制备所述催化剂组分的方法及其包含的催化剂，并且使用该催化剂将乙烯均聚或乙烯与至少一种C 3〜 -C 8α-烯烃。

    Method and apparatus of advanced deblocking filter in video coding
    6.
    发明授权
    Method and apparatus of advanced deblocking filter in video coding 有权

    公开(公告)号：US11153562B2

    公开(公告)日：2021-10-19

    申请号：US15758874

    申请日：2016-09-13

    申请人： Kai Zhang ,  Jicheng An ,  Han Huang

    发明人： Kai Zhang ,  Jicheng An ,  Han Huang

    IPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176

    摘要： A method and apparatus for adaptive de-blocking filter are disclosed. One or more parameters associated with a de-blocking filter are determined. De-blocking filter using the derived parameters are then applied to reconstructed blocks. Each set of parameters is used for each picture, slice, coding tree unit (CTU) or CU (coding unit). The parameters can be signalled in VPS (video parameter set), SPS (sequence parameter set), PPS (picture parameter set), slice header, CTU (coding tree unit) or CU (coding unit) of the video bitstream. The parameters correspond to one or more values used as thresholds, clipping boundaries, or both the thresholds and clipping boundaries for the de-blocking filter. In one embodiment, the parameters for the current picture are determined using a training process using a current coded picture a previous coded picture as training data.

    Junction box bar bracket
    7.
    发明授权
    Junction box bar bracket 有权

    公开(公告)号：US10135232B2

    公开(公告)日：2018-11-20

    申请号：US15373815

    申请日：2016-12-09

    申请人： Saeed Nikayin ,  Kai Zhang ,  Gilbert Loera ,  Andrew Choi

    发明人： Saeed Nikayin ,  Kai Zhang ,  Gilbert Loera ,  Andrew Choi

    IPC分类号： H02G3/12 ,  F16B2/20

    摘要： Improvements in a bracket is disclosed for mounting an electrical box onto a mounting bar. An electrical box can be preinstalled onto the bracket and clamped onto the mounting bar using wings. Bendable tabs can be articulated to secure the bracket and onto a rail. Fasteners are used to secure an electrical junction box onto the bracket and an additional fastener secures the sub assembly to the rail. The tabs can be unbent for removal. An installer can secure the bracket and electrical box using a screw and adjust the position of the bracket on the mounting bar. The bracket provides a low profile assemble that allows the bracket to be installed between the inner surfaces of stud walls.

    Conduit locking connector
    10.
    发明授权
    Conduit locking connector 有权
    导管锁定连接器

    公开(公告)号：US09472933B2

    公开(公告)日：2016-10-18

    申请号：US14513430

    申请日：2014-10-14

    申请人： Saeed Nikayin ,  Kai Zhang ,  Gilbert Loera

    发明人： Saeed Nikayin ,  Kai Zhang ,  Gilbert Loera

    IPC分类号： H02G3/22 ,  H02G3/06

    CPC分类号： H02G3/0683

    摘要： Improvements in a conduit locking connector that connects rigid conduit to an electrical junction box. Rigid conduit provides the benefit of allowing an installer to screw onto the side of the rigid conduit to frictionally lock into the rigid conduit with the conduit locking connector. A screw engages into rigid conduit that provide a hard bearing surface on opposing sides of the screw. This provides minimal bending of the rigid conduit for a firmer grip of the rigid conduit to the conduit locking connector. The conduit locking connector provides a physical interface that locks onto the rigid conduit and locks onto the junction box. The conduit locking connector provides anti-rotation between the rigid conduit and the junction box. Anti-rotation is with tabs that extend below a planar surface of the conduit locking connector and engage into holes in recesses in the junction box.

    摘要翻译： 将刚性导管连接到电接线盒的导管锁定连接器的改进。 刚性导管提供了一种好处，即允许安装者将螺钉拧到刚性导管的侧面，以便与导管锁定连接器摩擦锁定到刚性导管中。 螺钉接合到在螺钉的相对侧上提供硬支承表面的刚性导管中。 这提供了刚性导管的最小弯曲，用于将刚性导管更牢固地夹紧到导管锁定连接器。 导管锁定连接器提供物理接口，锁定在刚性导管上并锁定在接线盒上。 导管锁定连接器在刚性导管和接线盒之间提供防旋转。 防旋转的是具有在导管锁定连接器的平面表面下方延伸并接合到接线盒凹槽中的孔中的突片。