Method for preparing metal ceramic composite using microwave radiation
    3.
    发明申请
    Method for preparing metal ceramic composite using microwave radiation 审中-公开
    使用微波辐射制备金属陶瓷复合材料的方法

    公开(公告)号:US20070138706A1

    公开(公告)日:2007-06-21

    申请号:US11312146

    申请日:2005-12-20

    Abstract: A process based on the microwave-induced pyrolysis of an actively seeded, high-purity preceramic polymer for the rapid fabrication of low-cost and net-shape, provides silicon carbide and other ceramic components with specifically tailored compositions and multifunctional properties. The microwave processing method enables the microwave-induced pyrolysis of a polymer precursor that has been seeded with low volume fractions (about 5%) of nanometer-sized metal and/or dielectric fillers. The proper choice of the size of the filler particles, the volume content of the filler and the material type of the filler enables the effective direct coupling of the microwave energy to pyrolyze the preceramic polymer.

    Abstract translation: 基于用于快速制造低成本和净形状的主动种子的高纯度陶瓷前体聚合物的微波诱导热解的方法为碳化硅和其它陶瓷组分提供了特别定制的组合物和多功能性质。 微波处理方法使得已经以低体积分数(约5%)的纳米级金属和/或电介质填料接种的聚合物前体的微波诱导热解。 填充剂颗粒尺寸,填料的体积含量和填料的材料类型的适当选择使得能够有效地直接耦合微波能量来热解预陶瓷聚合物。

    Disk mirror architecture for database appliance with locally balanced regeneration
    4.
    发明申请
    Disk mirror architecture for database appliance with locally balanced regeneration 失效
    具有局部平衡再生的数据库设备的磁盘镜像架构

    公开(公告)号:US20050022051A1

    公开(公告)日:2005-01-27

    申请号:US10885519

    申请日:2004-07-06

    CPC classification number: G06F11/2082 G06F11/2058 G06F11/2069 G06F11/2071

    Abstract: A disk is segmented into a first data segment and a secondary data segment. The secondary data segment stores a logical mirror of the first data segment of another disk. Upon detecting a failure, the logical mirror of data stored in the first data segment of the failed disk is accessible from the secondary data segment of a non-failed disk. The first data segment can be rebuilt quickly on another disk from the logical mirror stored in the secondary data segment. During regenerating, accesses to the first data segment on the disk containing the logical mirror are handled by its own logical mirror, which is not involved in the regenerating process.

    Abstract translation: 磁盘被分割成第一数据段和辅助数据段。 辅助数据段存储另一个磁盘的第一个数据段的逻辑镜像。 在检测到故障时,存储在故障磁盘的第一数据段中的数据的逻辑镜像可从非故障磁盘的辅助数据段访问。 可以从存储在辅助数据段中的逻辑镜像在另一个磁盘上快速重建第一个数据段。 在重新生成期间,对包含逻辑镜像的磁盘上的第一个数据段的访问由其自己的逻辑镜像来处理,该逻辑镜不在再生过程中。

    Limiting scans of loosely ordered and/or grouped relations using nearly ordered maps
    5.
    发明申请
    Limiting scans of loosely ordered and/or grouped relations using nearly ordered maps 有权
    使用几乎有序的地图来限制使用松散排序和/或分组关系的扫描

    公开(公告)号:US20050010564A1

    公开(公告)日:2005-01-13

    申请号:US10847895

    申请日:2004-05-18

    Abstract: A large information space is divided into many smaller information extents. These extents are annotated with statistics about the information they contain. When a search for information includes a restriction based on value, the desired value ranges can be compared to the value ranges of each extent. If the desired value range lies outside the range of the extent, then the extent cannot hold the desired value and does not need to be included in the search.

    Abstract translation: 大的信息空间被分为许多较小的信息范围。 这些扩展名通过统计信息来注释它们包含的信息。 当搜索信息包括基于值的限制时,可以将期望的值范围与每个范围的值范围进行比较。 如果期望的值范围在范围的范围之外,则该范围不能保持所需的值,并且不需要包括在搜索中。

    Optimized database appliance
    6.
    发明申请

    公开(公告)号:US20060129542A1

    公开(公告)日:2006-06-15

    申请号:US11332704

    申请日:2006-01-13

    Abstract: A system from processing database queries allows for cost and locale based distribution for execution of database queries. The database queries are executed on execution engines that provide flexible configuration and overlapping functionality. The system reduces various costs, including elapsed time, required to perform database queries. The system provides processing of a database query using a database catalog comprising database table locality information, record locality information and execution engine information. A query optimizer receives the query and accesses the database catalog to create a query execution plan comprising locality-based database operations. A central database operation processor providing a first execution engine executes the query execution plan by performing at least a portion of the locality-based database operations and distributing at least a portion of the locality-based database operations as a subplan. A second database operation processor providing a second execution engine executes the subplan received from the central database operation processor. At least one of the database operations can be executed on either the first execution engine or the second execution engine. A storage unit stores at least a portion of database tables and records. A data communications network connects the central database processor to the second database processor.

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