METHOD AND APPARATUS FOR FORMING TITANIUM-ALUMINIUM BASED ALLOYS
    153.
    发明申请
    METHOD AND APPARATUS FOR FORMING TITANIUM-ALUMINIUM BASED ALLOYS 审中-公开
    用于形成钛 - 铝合金的方法和装置

    公开(公告)号:US20130319177A1

    公开(公告)日:2013-12-05

    申请号:US13915437

    申请日:2013-06-11

    Inventor: Jawad HAIDAR

    Abstract: A method for forming a titanium-aluminum based alloy in which titanium subchlorides and aluminum that have already been heated in a first zone are moved into and heated in an intermediate zone to a temperature at which at least a portion of the material can accrete and form a cake on a surface located in the intermediate zone. The non-caked material is moved to and heated in a second zone to form the titanium-aluminum based alloy. The caked material is periodically removed from the surface in the intermediate zone and heated with the non-caked material in the second zone.

    Abstract translation: 一种形成钛 - 铝基合金的方法,其中已经在第一区域中已经被加热的二氯化钛和铝在中间区域中移动并在其中被加热至至少一部分材料可以分散和形成的温度 位于中间区域的表面上的蛋糕。 将非结块材料移动到第二区域并在第二区域中加热以形成钛 - 铝基合金。 周期性地从中间区域的表面除去结块材料,并在第二区域中用非结块材料加热。

    Efficient gene silencing in plants using short dsRNA sequences
    156.
    发明申请
    Efficient gene silencing in plants using short dsRNA sequences 审中-公开
    使用短dsRNA序列在植物中有效的基因沉默

    公开(公告)号:US20040231016A1

    公开(公告)日:2004-11-18

    申请号:US10780638

    申请日:2004-02-19

    CPC classification number: C12N15/8218

    Abstract: Methods and means are provided to increase the efficiency of gene silencing when using dsRNA sequences which have a stem length shorter than about 200 base pairs by providing chimeric genes encoding such dsRNA sequences with a promoter recognized by DNA dependent RNA polymerase III comprising all cis-acting promoter elements which interact with DNA dependent RNA polymerase III.

    Abstract translation: 提供了提供方法和手段,以提供使用长度短于约200碱基对的dsRNA序列的基因沉默的效率,通过提供编码这种dsRNA序列的嵌合基因与由DNA依赖性RNA聚合酶III识别的启动子,其包含所有顺式作用 与DNA依赖性RNA聚合酶III相互作用的启动子元件。

    ACTIVE RECONFIGURABLE STRETCH FORMING
    160.
    发明申请
    ACTIVE RECONFIGURABLE STRETCH FORMING 审中-公开
    主动可重构拉伸成形

    公开(公告)号:US20150068261A1

    公开(公告)日:2015-03-12

    申请号:US14484949

    申请日:2014-09-12

    Abstract: This invention concerns an active reconfigurable stretch forming tool, and in another aspect the invention is a method of stretch forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use, each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to produce panels for reflector antennas.

    Abstract translation: 本发明涉及一种主动可重构拉伸成形工具,另一方面,本发明是一种拉伸成型方法。 该工具包括可扩展形状元件的阵列,其被延伸地驱动以在形状形成期间在整个工件上产生与单位面积相同的力。 限位开关阵列位于形状形成元件阵列的前面,使得形状成形元件在形状成形期间朝着相应的限位开关延伸地驱动。 在使用中,每个限位开关在成形时由工件激活,并且每个开关在启动时防止相应的被驱动元件的进一步延伸。 该工具和方法可用于在实心金属板或网状物中形成三维形状,以产生用于反射器天线的面板。

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