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    • 1. 发明授权
    • Computer method and apparatus for persisting pieces of a virtual world group conversation
    • 用于持续虚拟世界小组对话的计算机方法和装置
    • US08612868B2
    • 2013-12-17
    • US12055650
    • 2008-03-26
    • Li-Te ChengSteven L. RohallJohn F. Patterson
    • Li-Te ChengSteven L. RohallJohn F. Patterson
    • G06F3/00G06F3/048
    • G06F3/0481
    • Computer method and apparatus persists portions of group conversations in a virtual environment. A group conversation is formed of group member communications. Indications or illustrations, such as chat bubbles, are displayed to end users to represent the group member communications. The invention system enables a user to persist a portion of the group conversation by selecting respective indicators (e.g., chat bubbles) corresponding to one or more of the group member communications. The processor (persist engine) also enables any user to interact with persisted conversation portions. Interactions supported include moving, arranging, tagging with metadata and saving snapshots of the persisted conversation portions, in the virtual environment.
    • 计算机方法和设备在虚拟环境中保持组对话的部分。 小组会话由小组成员通信组成。 指示或插图,如聊天气泡,显示给最终用户以表示组成员通信。 本发明系统使得用户能够通过选择与组成员通信中的一个或多个相对应的相应指示符(例如,聊天泡泡)来保持组对话的一部分。 处理器(持续引擎)还使任何用户能够与持久化的会话部分进行交互。 支持的交互包括在虚拟环境中移动,排列,标记元数据并保存持久对话部分的快照。
    • 5. 发明授权
    • Hydraulic resistance strip for a light water reactor
    • 轻水反应堆的液压阻力条
    • US5384815A
    • 1995-01-24
    • US995640
    • 1992-12-17
    • John F. PattersonGeorge C. Cooke
    • John F. PattersonGeorge C. Cooke
    • G21C3/322G21C3/326
    • G21C3/322G21C3/326G21Y2002/201G21Y2004/30G21Y2004/302Y02E30/38
    • An improved fuel rod is provided having a part-length fuel rod portion that improves performance with respect to typical part-length fuel rods without significant degradation of the benefits that are achieved by using such a system, e.g., improved fuel utilization, stability, and shut down margin. The present invention provides a fuel rod for a light water nuclear reactors that comprises a part-length fuel rod and an extension tube having at least one wall member defining an enclosed flow path therethrough, the extension tube being coupled to a portion of the part-length fuel rod so as to be disposed axially above the part-length fuel rod, and including at least one inlet opening, for allowing fluid that surrounds the rod and initially comprises a two phase mixture of steam and liquid, to enter the enclosed fluid path and at least one outlet opening located above the inlet opening, the extension tube includes means for separating at least some of the steam located in the fluid from the liquid located therein. The improved fuel rod allows steam to bypass the upper active portions of the fuel assembly. A hydraulic resistance strip having a predetermined amount of an axially distributed resistance surface is positioned above a part length fuel rod to achieve a more uniform distribution of hydraulic resistance in order to limit cross-flows from and between adjacent subchannels while maintaining most of the increase in fuel assembly flow area that is associated with the open space above the part length fuel rod.
    • 提供了一种改进的燃料棒,其具有部分长度的燃料棒部分,其相对于典型的部分长度的燃料棒提高了性能,而没有通过使用这种系统实现的益处的显着劣化,例如改进的燃料利用率,稳定性和 关闭边际 本发明提供了一种用于轻水核反应堆的燃料棒,其包括部分长度的燃料棒和延伸管,该延伸管具有至少一个限定通过其的封闭流动通道的壁构件,该延伸管与部分 - 并且包括至少一个入口,用于允许围绕杆的流体并且最初包括蒸汽和液体的两相混合物,以进入封闭的流体路径 以及位于入口开口上方的至少一个出口,所述延伸管包括用于将位于流体中的至少一些位于流体中的蒸汽与位于其中的液体分开的装置。 改进的燃料棒允许蒸汽绕过燃料组件的上部有效部分。 具有预定量的轴向分布电阻表面的液压阻力带位于部分长度燃料棒上方,以实现更均匀的液压阻力分布,以限制相邻子通道之间和相邻子通道之间的交叉流动,同时保持大部分增加 与部件长度燃料棒上方的开放空间相关联的燃料组件流动面积。
    • 8. 发明授权
    • Nuclear reactor spring strip grid spacer
    • 核反应堆弹簧条栅格间隔
    • US4077843A
    • 1978-03-07
    • US688924
    • 1976-05-21
    • John F. PattersonBarney S. Flora
    • John F. PattersonBarney S. Flora
    • G21C3/34G21C3/356G21C3/30
    • G21C3/3563Y02E30/40
    • A bimetallic grid spacer comprising a grid structure of zircaloy formed by intersecting striplike members which define fuel element openings for receiving fuel elements and spring strips made of Inconel positioned within the grid structure for cooperating with the fuel elements to maintain them in their desired position. A plurality of these spring strips extend longitudinally between sides of the grid structure, being locked in position by the grid retaining strips. The fuel rods, which are disposed in the fuel openings formed in the grid structure, are positioned by means of the springs associated with the spring strips and a plurality of dimples which extend from the zircaloy grid structure into the openings. In one embodiment the strips are disposed in a plurality of arrays with those spring strip arrays situated in opposing diagonal quadrants of the grid structure extending in the same direction and adjacent spring strip arrays in each half of the spacer extending in relatively perpendicular directions. Other variations of the spring strip arrangements for a particular fuel design are disclosed herein.
    • 一种双金属栅格间隔物,其包括通过相交的带状构件形成的二氧化锆的栅格结构,其限定用于接收燃料元件的燃料元件开口和由位于栅格结构内的由铬镍铁合金制成的弹簧带,用于与燃料元件配合以将它们保持在其期望位置。 多个这些弹簧条在网格结构的两侧之间纵向延伸,并被格栅保持条锁定在适当位置。 设置在形成在栅格结构中的燃料开口中的燃料棒通过与弹簧条相关联的弹簧和从锆石格栅结构延伸到开口中的多个凹坑来定位。 在一个实施例中,条带被布置成多个阵列,其中这些弹簧条阵列位于沿相同方向延伸的网格结构的相对的对角象限中,并且相邻的弹簧条阵列在间隔件的每一半在相对垂直的方向上延伸。 本文公开了用于特定燃料设计的弹簧带装置的其它变型。