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    • 3. 发明授权
    • Axial flow impeller
    • 轴流叶轮
    • US09435349B2
    • 2016-09-06
    • US13823447
    • 2011-09-13
    • Bin QianQisong JiangDenghao WuFeng LiDong Wang
    • Bin QianQisong JiangDenghao WuFeng LiDong Wang
    • F04D29/18F04D29/32F04D29/38
    • F04D29/181F04D29/324F04D29/38
    • An axial flow impeller includes a hub, at least three base blades, and a cover blade detachably mounted to each base blade. When the impeller is applied in a medium environment having a high density and viscosity, the impeller will meet the requirement only by virtue of the base blade with the cover blade being removed. When the impeller is applied in a medium environment having low density and viscosity, the cover blade can be mounted in the front and/or rear of the base blade in order to improve the efficiency of the impeller. In this case, the consumption of electrical power can be reduced significantly while producing an equivalent propulsive force, thereby being advantageous for energy conservation. Therefore, the impeller can be adaptable to different medium environments and efficiency requirements, and thus can have good adaptability, need minimal investment cost and can be convenient to use.
    • 轴向流动叶轮包括轮毂,至少三个基本叶片和可拆卸地安装到每个基础叶片上的盖板。 当叶轮被施加在具有高密度和粘度的介质环境中时,叶轮将仅通过除去盖板的基础叶片才能满足要求。 当叶轮被施加在具有低密度和粘度的介质环境中时,盖叶片可以安装在基础叶片的前部和/或后部,以便提高叶轮的效率。 在这种情况下,能够在产生等效推进力的同时显着降低电力消耗,有利于节能。 因此,叶轮可以适应不同的介质环境和效率要求,因此具有良好的适应性,投资成本最低,使用方便。
    • 4. 发明授权
    • Document scanner
    • 文件扫描仪
    • US08922849B2
    • 2014-12-30
    • US13698362
    • 2010-05-27
    • Andrew Roy CullumGraham James Ohn TinnJianjun ZuoFeng LiPeng JiangDavid BadgerJun Wang
    • Andrew Roy CullumGraham James Ohn TinnJianjun ZuoFeng LiPeng JiangDavid BadgerJun Wang
    • H04N1/04H04N1/03H04N1/031H04N1/191H04N1/12
    • H04N1/03H04N1/0312H04N1/12H04N1/191H04N1/1917H04N1/1918
    • A document scanner comprises a first image sensor unit (32) and a second image sensor unit (30) and a scanning mechanism (70, 72, 76, 80) for causing relative movement between a document and the units so that the units scan the document in a scanning direction. The first unit (32) is situated ahead of the second unit (30) in the scanning direction and partially overlaps the second unit. Each sensor unit has a respective linear array (44) of electromagnetic radiation detectors and one or more light guides (48, 49) for directing light from a respective one of two imaging lines (63) on to the detectors, wherein, in use, the imaging lines scan the document to capture data representative of two respective sets of scan line portions for combination to obtain a succession of scan lines for the document, the one or more light guides of the first unit (32) are angled rearwardly with respect to the scanning direction, whilst the one or more light guides of the second unit (30) are angled forwardly with respect to the scanning direction, so as to reduce the distance with respect to the scanning direction, between the imaging lines (63).
    • 文件扫描器包括第一图像传感器单元(32)和第二图像传感器单元(30)和扫描机构(70,72,76,80),用于引起文件和单元之间的相对移动,使得单元扫描 在扫描方向记录。 第一单元(32)在扫描方向上位于第二单元(30)的前方并与第二单元部分重叠。 每个传感器单元具有相应的电磁辐射检测器的线性阵列(44)和用于将来自两个成像线(63)中的相应一个的光引导到检测器上的一个或多个光导(48,49),其中在使用中, 成像线扫描文件以捕获表示两组相应的扫描线部分组合的数据,用于组合以获得用于文件的一连串扫描线,第一单元(32)的一个或多个光导相对于 扫描方向,同时第二单元(30)的一个或多个光导相对于扫描方向向前成角度,以便减小成像线(63)之间相对于扫描方向的距离。
    • 8. 发明申请
    • PERFORMANCE SERVICE LEVEL AGREEMENTS IN MULTI-TENANT DATABASE SYSTEMS
    • 多重数据库系统中的性能服务级别协议
    • US20130297655A1
    • 2013-11-07
    • US13461785
    • 2012-05-02
    • Vivek Ravindranath NarasayyaFeng LiSurajit Chaudhuri
    • Vivek Ravindranath NarasayyaFeng LiSurajit Chaudhuri
    • G06F7/00G06F17/30
    • G06F17/30575G06F11/3457H04L41/5003H04L41/5009
    • Various technologies described herein pertain to evaluating service provider compliance with terms of a performance service level agreement (SLA) for a tenant in a multi-tenant database system. The terms of the performance SLA can set a performance criterion as though a level of a resource of hardware of the multi-tenant database system is dedicated to the tenant. An actual performance metric of the resource can be tracked for a workload of the tenant. Further, a baseline performance metric of the resource can be determined for the workload of the tenant. The baseline performance metric can be based on a simulation as though the level of the resource as set in the performance SLA is dedicated to the workload of the tenant. Moreover, the actual performance metric can be compared with the baseline performance metric to evaluate compliance with the performance SLA.
    • 本文描述的各种技术涉及评估服务提供商遵守多租户数据库系统中租户的性能服务级别协议(SLA)的条款。 性能SLA的术语可以设置性能标准,就像多租户数据库系统的硬件资源的级别是专门用于租户一样。 可以为租户的工作负载跟踪资源的实际性能指标。 此外,可以为租户的工作量确定资源的基准绩效指标。 基准性能度量可以基于模拟,就像在性能SLA中设置的资源的级别专用于租户的工作量一样。 此外,可以将实际绩效指标与基准绩效指标进行比较,以评估是否符合绩效SLA。
    • 9. 发明申请
    • Method and System for Switching Working Mode for Backward Compatible Broadband Wireless Network
    • 用于向后兼容的宽带无线网络的切换工作模式的方法和系统
    • US20130286891A1
    • 2013-10-31
    • US13883092
    • 2011-09-30
    • Bo SunKaiying LvNan LiFeng LiLi Zhang
    • Bo SunKaiying LvNan LiFeng LiLi Zhang
    • H04W24/02
    • H04W24/02H04W36/06
    • The disclosure discloses a method and a system for switching a working mode for a backward compatible broadband wireless network, in order to solve the technical problem of switching between each working mode when various compatible modes based on different channelized sets exist in the broadband wireless network. In the disclosure, an access point (AP) indicates its current working mode by a system configuration message; the AP instructs a non-AP associated with the AP to switch a working mode by a mode switching message or a frame exchange sequence; and the non-AP switches the working mode according to instruction information included in the mode switching message or the frame exchange sequence after receiving the mode switching message or the frame exchange sequence. Through the scheme of the disclosure, a wireless point can be switched between each working mode when various compatible modes based on different channelized sets exist in the broadband wireless network, thereby setting up a broadband wireless network supporting backward compatibility.
    • 本公开公开了一种用于切换后向兼容宽带无线网络的工作模式的方法和系统,以便在宽带无线网络中存在基于不同信道化集合的各种兼容模式时解决在每个工作模式之间切换的技术问题。 在本公开中,接入点(AP)通过系统配置消息指示其当前工作模式; AP指示与AP关联的非AP通过模式切换消息或帧交换序列切换工作模式; 并且非AP在接收到模式切换消息或帧交换序列之后,根据包括在模式切换消息中的指示信息或帧交换序列切换工作模式。 通过本公开的方案,当在宽带无线网络中存在基于不同信道化集合的各种兼容模式时,可以在每个工作模式之间切换无线点,从而建立支持向后兼容性的宽带无线网络。