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    • 25. 发明授权
    • Heat dissipation device having a rotatable fastener
    • 具有旋转紧固件的散热装置
    • US07567439B2
    • 2009-07-28
    • US11837460
    • 2007-08-10
    • Wu LiYi-Qiang Wu
    • Wu LiYi-Qiang Wu
    • H05K7/20
    • H01L23/4006H01L2023/405H01L2023/4062H01L2023/4087H01L2924/0002H01L2924/00
    • A heat dissipation device includes a heat sink, a retention module and a rotatable fastener for securing the heat sink to the retention module. The retention module includes two supporting ribs and a positioning block above one of the supporting ribs. The rotatable fastener is rotatably received in the retention module and includes an actuating portion and a pressing portion fastened to the actuating portion. The heat sink rests on the supporting ribs of the retention module with an end thereof being pressed by the positioning block, and an opposite end thereof being pressed by the pressing portion. The rotatable fastener can be rotated to an unlocked position wherein the pressing portion is moved away from the opposite end of the heat sink, so that the heat sink is removable from the retention module.
    • 散热装置包括散热器,保持模块和用于将散热器固定到保持模块的可旋转紧固件。 保持模块包括两个支撑肋和位于一个支撑肋上方的定位块。 可旋转紧固件可旋转地容纳在保持模块中,并且包括致动部分和紧固到致动部分的按压部分。 散热片搁置在保持模块的支撑肋上,其一端被定位块按压,其相对端被按压部分按压。 可旋转紧固件可以旋转到解锁位置,其中按压部分移动远离散热器的相对端,使得散热器可从保持模块移除。
    • 26. 发明申请
    • IMAGE RECONSTRUCTION METHOD AND X-RAY CT APPARATUS
    • 图像重建方法和X射线CT设备
    • US20070211846A1
    • 2007-09-13
    • US11684157
    • 2007-03-09
    • Yu ZhouWu Li
    • Yu ZhouWu Li
    • H05G1/60A61B6/00G01N23/00G21K1/12
    • A61B6/04A61B6/027A61B6/583G06T11/006G06T2211/424Y10S378/901
    • The present invention is intended to provide an image reconstruction method based on an iterative reconstruction technique and characterized by a short image reconstruction time, a small memory capacity, and high image quality. The image reconstruction method comprises the steps of: constructing a system model that has a plurality of concentric rings each segmented into a plurality of sectors; constructing a system matrix associated with one view, by using some of all the sectors constituting the system model, the some of all sectors being located on respective projection lines concerning the one view; creating a system matrix associated with another view, by transforming the system matrix associated with the one view; reconstructing an image through iterative reconstruction by using the system matrix and projection data; and transforming the image into an image composed of rectangular pixels.
    • 本发明旨在提供一种基于迭代重建技术的图像重建方法,其特征在于短图像重建时间,小存储容量和高图像质量。 图像重建方法包括以下步骤:构建具有多个同心环的系统模型,每个同心环分成多个扇区; 通过使用构成系统模型的所有扇区中的一些构造与一个视图相关联的系统矩阵,所有扇区中的一些位于关于一个视图的相应投影线上; 通过转换与一个视图相关联的系统矩阵来创建与另一个视图相关联的系统矩阵; 通过使用系统矩阵和投影数据通过迭代重建来重建图像; 并将图像变换成由矩形像素构成的图像。
    • 27. 发明申请
    • Method and apparatus for intracerebral hemorrhage lesion segmentation
    • 脑内出血病变分割的方法和装置
    • US20070031020A1
    • 2007-02-08
    • US11499299
    • 2006-08-04
    • Wu Li
    • Wu Li
    • G06K9/00
    • G06T7/0012G06T2207/30016
    • The present invention provides a method and apparatus for appropriately performing the intra-cerebral hemorrhage lesion segmentation by determining a higher scale level image by means of a scale space filtering on an X-ray CT image of a head with the onset of intra-cerebral hemorrhage, determining the region of interest which corresponds to a contour of brain based on the higher scale level image, performing an unsupervised classification on the image in the region of interest of the X-ray CT image of the head, and recognizing the intra-cerebral hemorrhage lesion by means of an expert system from the result of the unsupervised classification.
    • 本发明提供了一种通过利用脑内出血发作的头部的X射线CT图像的尺度空间滤波来确定较高比例级别的图像来适当地进行脑内出血损伤分割的方法和装置 基于较高比例级别图像确定对应于大脑轮廓的感兴趣区域,对头部的X射线CT图像的感兴趣区域中的图像执行无监督分类,以及识别脑内 通过专家系统从无监督分类的结果出血性病变。