Recovery of zinc from sulphidic concentrates
    1.
    发明授权
    Recovery of zinc from sulphidic concentrates 失效
    从硫化氢精矿中回收锌

    公开(公告)号:US5770170A

    公开(公告)日:1998-06-23

    申请号:US700143

    申请日:1996-08-20

    摘要: There is provided a novel class of additives, specifically coals, which are useful in zinc extraction processes involving one or more pressure leach stages carried out at temperatures above the melting point of sulphur. Such processes may include those incorporating a single stage pressure leach, a process involving two stage countercurrent or cocurrent pressure leaches or a multistage leach process for recovering zinc, lead and silver from zinc bearing sulphidic materials which also contain lead and silver.

    摘要翻译: 提供了一类新的添加剂,特别是煤,其可用于锌提取过程,其涉及在高于硫的熔点的温度下进行的一个或多个压力浸出阶段。 这些方法可以包括那些结合单级压力浸出,涉及两级逆流或并流压力浸出的方法,或用于从含有铅和银的含锌硫化物材料中回收锌,铅和银的多级浸出方法。

    Hydrometallurgical process for the extraction of copper from sulphidic
concentrates
    2.
    发明授权
    Hydrometallurgical process for the extraction of copper from sulphidic concentrates 失效
    用于从硫化氢精矿中萃取铜的湿法冶金工艺

    公开(公告)号:US5730776A

    公开(公告)日:1998-03-24

    申请号:US607754

    申请日:1996-02-27

    IPC分类号: C22B15/00 C22B3/08

    CPC分类号: C22B15/0071 Y02P10/236

    摘要: There is provided a novel hydrometallurgical process for the extraction of copper from sulphidic concentrates involving an oxidizing pressure leach using dilute sulphuric acid and a carbonaceous additive. The leaching step is carried out preferably at temperatures above the melting point of sulphur but below about 200.degree. C.

    摘要翻译: 提供了一种新的湿法冶金方法,用于使用稀硫酸和含碳添加剂从涉及氧化压力浸出的硫化物浓缩物中提取铜。 浸出步骤优选在高于硫的熔点但低于约200℃的温度下进行。

    Recovery of zinc from sulphidic concentrates
    3.
    发明授权
    Recovery of zinc from sulphidic concentrates 失效
    从硫化氢精矿中回收锌

    公开(公告)号:US5651947A

    公开(公告)日:1997-07-29

    申请号:US553175

    申请日:1995-11-07

    摘要: There is provided a novel class of additives, specifically coals, which are useful in zinc extraction processes involving one or more pressure leach stages carried out at temperatures above the melting point of sulphur. Such processes may include those incorporating a single stage pressure leach, a process involving two stage countercurrent or cocurrent pressure leaches or a multistage leach process for recovering zinc, lead and silver from zinc bearing sulphidic materials which also contain lead and silver.

    摘要翻译: 提供了一类新的添加剂,特别是煤,其可用于锌提取过程,其涉及在高于硫的熔点的温度下进行的一个或多个压力浸出阶段。 这些方法可以包括那些结合单级压力浸出,涉及两级逆流或并流压力浸出的方法,或用于从含有铅和银的含锌硫化物材料中回收锌,铅和银的多级浸出方法。

    CONTROL METHOD AND APPARATUS
    4.
    发明申请
    CONTROL METHOD AND APPARATUS 有权
    控制方法和装置

    公开(公告)号:US20120255436A1

    公开(公告)日:2012-10-11

    申请号:US13081808

    申请日:2011-04-07

    IPC分类号: B03C3/34

    摘要: A method and apparatus for controlling the electrical power applied to an electrically driven oxygen separation device having one or more composite membrane elements to separate oxygen from an oxygen containing feed. The composite membrane elements have a resistance increasing during the operation thereof that would act to reduce oxygen output if applied voltage were held constant. In order to increase the time interval for renewing the composite membrane elements, the electrical potential difference is controlled such that the electric current drawn by the elements remains at a substantially constant level by increasing the electrical potential difference as the resistance increases until a predetermined voltage level is reached. Once this level is obtained, the electrical potential difference is maintained at a constant level and the electric current being drawn and the oxygen output is allowed to decay to a predetermined low level after which the element or elements are replaced.

    摘要翻译: 一种用于控制施加到具有一个或多个复合膜元件的电驱动氧分离装置以从含氧进料分离氧的电功率的方法和装置。 复合膜元件在其操作期间具有电阻增加,如果施加的电压保持恒定,其将用于减少氧输出。 为了增加更新复合膜元件的时间间隔,控制电位差,使得由元件汲取的电流通过随着电阻增加直到预定的电压电平来增加电位差而保持在基本上恒定的水平 到达了。 一旦获得该电平,电位差就保持在一个恒定的水平,并且被抽出的电流和氧气输出被允许衰减到一个预定的低电平,之后元件被替换。

    Computer-aided detection and classification of suspicious masses in breast imagery
    5.
    发明授权
    Computer-aided detection and classification of suspicious masses in breast imagery 有权
    计算机辅助检测和乳腺图像中可疑肿块的分类

    公开(公告)号:US08175351B2

    公开(公告)日:2012-05-08

    申请号:US12211593

    申请日:2008-09-16

    IPC分类号: G06K9/00 G06K9/62 A61B6/04

    摘要: Methods are presented that detect and classify mass-like regions exhibiting spiculated and/or dense characteristics with high sensitivity and at acceptable false positive rates. One or more suspicious masses are identified in medical imagery of the breast. In certain embodiments, a quantitative measure of spiculation and quantitative measure of density are computed for each suspicious mass located. At least one classification scheme, developed using true and false positives with similar quantitative measures, is then selected for each suspicious mass according to both quantitative measures. In certain other embodiments, a measure of breast location is computed for each suspicious mass. In one embodiment, the location determines whether a suspicious mass appears inside or outside of the parenchyma region of the breast.

    摘要翻译: 提出了以高灵敏度和可接受的假阳性率检测和分类显示具有螺旋和/或致密特征的质粒状区域的方法。 在乳房的医学图像中识别出一个或多个可疑群体。 在某些实施方案中,针对位于每个可疑质量计算密度的定量测量和密度的定量测量。 然后,根据这两种定量方法,选择至少一种使用具有相似量化措施的真假假阳性分类方案。 在某些其他实施例中,针对每个可疑质量计算乳房位置的度量。 在一个实施例中,该位置确定可疑质量是否出现在乳房的实质区域的内部或外部。

    OXYGEN SEPARATION ASSEMBLY AND METHOD
    7.
    发明申请
    OXYGEN SEPARATION ASSEMBLY AND METHOD 审中-公开
    氧分离装置和方法

    公开(公告)号:US20100116133A1

    公开(公告)日:2010-05-13

    申请号:US12267801

    申请日:2008-11-10

    IPC分类号: B03C3/06

    摘要: The present invention provides an electrically driven oxygen separation assembly and method of applying an electrical potential thereto in which one or more tubular membrane elements are provided having an anode layer, a cathode layer, an electrolyte layer and two current collector layers adjacent to and in contact with the anode layer and the cathode layer and situated on the inside and outside of the at least one tubular membrane element. The potential is applied to one of the two current collector layers at two central spaced locations of the at least one tubular membrane element and to the other of the two current collector layers at least at opposite end locations thereof. As a result the electric current flow through the tubular membrane element is divided into two parts flowing between the two central spaced locations and the opposite end locations.

    摘要翻译: 本发明提供一种电驱动氧分离组件及其电位施加方法,其中提供一个或多个管状膜元件,其中阳极层,阴极层,电解质层和邻近和接触的两个集电器层 与阳极层和阴极层并且位于至少一个管状膜元件的内部和外部。 在至少一个管状膜元件的两个中心间隔位置处并且至少在两个集电器层中的另一个至少在其相对的端部位置处将电位施加到两个集电器层中的一个。 结果,流过管状膜元件的电流被分成在两个中心间隔位置和相对端部位置之间流动的两个部分。

    Converter with feedback voltage referenced to output voltage with separate ground planes for converter and load
    8.
    发明授权
    Converter with feedback voltage referenced to output voltage with separate ground planes for converter and load 有权
    转换器具有参考输出电压的反馈电压,具有转换器和负载的单独接地层

    公开(公告)号:US07679295B1

    公开(公告)日:2010-03-16

    申请号:US11940186

    申请日:2007-11-14

    IPC分类号: H05B37/02

    CPC分类号: H02M3/156 G09G2330/028

    摘要: A driver for a white LED string or a display is provided. The driver includes a boost converter that is arranged to provide an output voltage from a source voltage. Also, the driver includes a sense resistor that is coupled between the output voltage and a feedback voltage. The sense resistor is coupled in series with the white LED string or the display. Further, the boost converter uses the sense voltage across the sense resistor to regulate the output voltage. In one embodiment, the boost converter includes a level shifter that converts the sense voltage into a comparison signal that is referenced to ground. In another embodiment, the converter employs a reference voltage that is referenced to the output voltage.

    摘要翻译: 提供白色LED串或显示器的驱动程序。 驱动器包括升压转换器,其被布置成从源极电压提供输出电压。 此外,驱动器包括耦合在输出电压和反馈电压之间的检测电阻器。 感测电阻器与白色LED串或显示器串联耦合。 此外,升压转换器使用检测电阻两端的感测电压来调节输出电压。 在一个实施例中,升压转换器包括电平移位器,其将感测电压转换为参考地的比较信号。 在另一实施例中,转换器采用参考输出电压的参考电压。

    AUTOMATED LESION CHARACTERIZATION
    9.
    发明申请
    AUTOMATED LESION CHARACTERIZATION 有权
    自动化LESION特征

    公开(公告)号:US20100021030A1

    公开(公告)日:2010-01-28

    申请号:US12573324

    申请日:2009-10-05

    IPC分类号: G06T1/00

    摘要: A method and system that provides users with additional information regarding imagery analyzed by computer-aided detection (CAD) systems is described. A user selects a region of the analyzed imagery. Information is then derived from computational measurements of the region obtained during CAD processing. The region selected by the user does not necessarily have to include a displayed CAD system detection. The information includes a description of the computational measurement and the value of the measurement, both of which are provided in clinically relevant terms.

    摘要翻译: 描述了一种为用户提供关于通过计算机辅助检测(CAD)系统分析的图像的附加信息的方法和系统。 用户选择分析图像的区域。 然后从CAD处理中获得的区域的计算测量得出信息。 由用户选择的区域不一定必须包括显示的CAD系统检测。 该信息包括计算测量和测量值的描述,两者都以临床相关术语提供。