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    • 94. 发明申请
    • Source-implemented constraint based routing with source routed protocol data units
    • 源实现基于约束的路由与源路由协议数据单元
    • US20050135330A1
    • 2005-06-23
    • US10745886
    • 2003-12-23
    • Peter SmithRyan StarkDonald Fedyk
    • Peter SmithRyan StarkDonald Fedyk
    • H04L12/28H04L12/56
    • H04L47/824H04L43/0811H04L45/02H04L45/04H04L45/22H04L45/28H04L45/34H04L47/125H04L47/70H04L47/724H04L47/746H04L47/829
    • Source-implemented constraint-based routing with source routing enables traffic engineering to be performed and reservations to be made within a domain without requiring constraint information and reservation information to be disseminated to all nodes in the domain. In one embodiment, a focal node maintains a table containing metrics of links and connection reservations through the domain. When a connection is to be added, the focal node determines a path, given the constraints reflected in the table, and allocates resources on the links forming the path. The table is updated, and the path is used to generate headers for traffic associated with the connection. Traffic from the nodes toward the focal point follow the reverse path. If a node or link fails, connections carried through the failure are identified, reservations on links associated with the connections are released, and new reservations are made taking into account the new network topology.
    • 源实施的基于约束的路由与源路由使得能够执行流量工程,并且在域内进行预留,而不需要将约束信息和预留信息传播到域中的所有节点。 在一个实施例中,焦点节点维护包含通过该域的链接和连接保留的度量的表。 当要添加连接时,考虑到表中反映的约束,焦点节点确定路径,并在形成路径的链路上分配资源。 该表已更新,该路径用于生成与连接相关联流量的头文件。 从节点到焦点的流量遵循相反的路径。 如果节点或链路发生故障,则识别通过故障进行的连接,释放与连接相关联的链路上的预留,并且考虑新的网络拓扑结构进行新的预留。
    • 96. 发明授权
    • Ion thruster with graphite accelerator grid
    • 离子推进器与石墨加速器网格
    • US5689950A
    • 1997-11-25
    • US604337
    • 1996-02-21
    • Peter Smith
    • Peter Smith
    • F03H1/00H01J27/02
    • F03H1/0056H01J27/024
    • An ion thruster comprises a chamber in which propellant is ionized and an accelerator grid, whereby a flow of ions out of the chamber provides reactive thrust. Charge exchange between neutral atoms of propellant and fast moving ions produces slow ions which impact on the accelerator grid and erode it by sputtering, thus limiting the lifetime of the thruster. The invention includes an accelerator grid comprising a layer which includes graphite providing resistance to erosion and a support layer which overcomes the restrictions on engineering and strength of graphite. The accelerator grid can be constructed by machining a block of graphite 12 to produce an upper surface 13, to which the molybdenum grid 14 can be fixed. The block 12 can then be cut away to permit the graphite to be machined to the same contour as the surface 13. Apertures are drilled through the graphite using the existing apertures of the grid 14 as guides.
    • 离子推进器包括其中推进剂被离子化的室和加速器网格,由此离开室的离子流提供反作用力。 推进剂和快速离子的中性原子之间的电荷交换产生缓慢的离子,其冲击加速器网格并通过溅射侵蚀,从而限制了推进器的寿命。 本发明包括一个加速器格栅,其包括一层包括提供耐腐蚀性的石墨的层,以及支撑层克服石墨的工程和强度的限制。 加速器网格可以通过加工石墨12的块来构造,以产生上部表面13,钼网格14可以固定在上表面13上。 然后可以切割块12以允许将石墨加工成与表面13相同的轮廓。利用网格14的现有孔作为引导件,钻孔穿过石墨。
    • 97. 发明授权
    • Bridge deck panel installation system and method
    • 桥面板安装系统及方法
    • US5617599A
    • 1997-04-08
    • US444390
    • 1995-05-19
    • Peter Smith
    • Peter Smith
    • E01D19/12E01D21/00
    • E01D19/125E01D2101/268
    • This invention involves a system and method for the installation of a prefabricated composite structural members. The system utilizes deck panels which have a plurality of steel C-beam pairs attached to the underside such that a series of channels is formed. Bored through each deck panel is a plurality of access holes which projects through the panel and into one of said channels. Thus, installers can access underlying bridge girders from the surface of the deck panels thereby allowing for top-side installation. The system also provides a top-side vertically adjusting device for raising or lowering the deck panels to allow for the top-side installation of shimming devices.
    • 本发明涉及一种用于安装预制复合结构构件的系统和方法。 该系统使用具有多个钢C型梁对的甲板面板,其连接到下侧,使得形成一系列通道。 穿过每个甲板面板的钻孔是多个进入孔,其突出通过面板并进入所述通道之一。 因此,安装人员可以从甲板面板的表面接入底层桥梁,从而允许顶部安装。 该系统还提供了用于升高或降低甲板板的顶部垂直调节装置,以允许顶部安装匀场装置。