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    • 2. 发明申请
    • Polarized neutron guide
    • 极化中子引导
    • US20070076837A1
    • 2007-04-05
    • US11449374
    • 2006-06-08
    • Sang ChoChang LeeHark KimYoung Kim
    • Sang ChoChang LeeHark KimYoung Kim
    • G21C7/00
    • G21K1/062B82Y10/00G21K1/16G21K2201/061G21K2201/067G21K2201/068H05H3/06
    • A polarized neutron guide for separating neutrons into polarized neutrons while minimizing loss of the neutrons is provided. The polarized neutron guide includes a body, the first space and the second space, and a neutron separation space. The body includes super mirrors coated with a neutron-reflective thin film and the first and second spaces are formed by the first plate inside the body. The neutron separation space is formed by the second plate disposed at the entry of the first space and the third plate disposed at the entry of the second space. Spin-up polarized neutrons and spin-down polarized neutrons are simultaneously separated and transferred in the first and second spaces, respectively. Therefore, with minimum loss of the neutrons, the spin-up polarized neutrons and the spin-down polarized neutrons are effectively separated and collected.
    • 提供了用于将中子分离成极化中子同时最小化中子损失的极化中子引导件。 极化中子引导件包括主体,第一空间和第二空间以及中子分离空间。 身体包括涂有中子反射薄膜的超级镜,第一和第二空间由身体内的第一个板形成。 中子分离空间由设置在第一空间的入口处的第二板和设置在第二空间的入口处的第三板形成。 旋转极化中子和自旋向下极化中子分别在第一和第二空间中分离并转移。 因此,以最小的中子损失,有效地分离和收集了自旋向极化中子和自旋向下极化中子。
    • 7. 发明申请
    • Crash recovery system and method for distributed file server using object based storage
    • 使用基于对象的存储的分布式文件服务器的崩溃恢复系统和方法
    • US20060129614A1
    • 2006-06-15
    • US11231158
    • 2005-09-20
    • Hong KimKi JinYoung KimYoung KimMi LeeMyung Kim
    • Hong KimKi JinYoung KimYoung KimMi LeeMyung Kim
    • G06F17/30
    • G06F11/1435G06F11/1448G06F11/1451G06F11/1464G06F11/1469
    • A crash recovery system and method for distributed file server using object based storage are provided. The system includes: a client for accessing a file system using an object-based storage device (OSDFS), transmitting a command to an object-based storage device (OSD) and accessing a metadata server (MDS); a network for providing an interface and transferring data between the client, the metadata server and the object-based storage device; an object-based storage device for analyzing the command from the client and performing corresponding operations of the command; and a metadata server for storing and managing metadata controlling a direct access to a predetermined file from the client to the object based storage device in order to provide the metadata to the client, and checking and recovering a consistency of the stored and managed metadata when the OSDFS is malfunctioned.
    • 提供了一种使用基于对象的存储的分布式文件服务器的崩溃恢复系统和方法。 该系统包括:用于使用基于对象的存储设备(OSDFS)访问文件系统的客户机,向基于对象的存储设备(OSD)发送命令并访问元数据服务器(MDS); 用于提供接口并在客户端,元数据服务器和基于对象的存储设备之间传送数据的网络; 基于对象的存储装置,用于分析来自客户机的命令并执行命令的相应操作; 以及用于存储和管理元数据的元数据服务器,其控制从客户机到基于对象的存储设备直接访问预定文件,以便向客户端提供元数据,以及当存储和管理的元数据的一致性时 OSDFS发生故障。