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    SYNTHETIC BUBBLES OR BEADS HAVING HYDROPHOBIC SURFACE
    46.
    发明申请
    SYNTHETIC BUBBLES OR BEADS HAVING HYDROPHOBIC SURFACE 有权
    合成泡沫或具有疏水性表面的珠粒

    公开(公告)号：US20140202959A1

    公开(公告)日：2014-07-24

    申请号：US14117946

    申请日：2012-05-25

    申请人： Paul J. Rothman ,  Mark R. Fernald ,  Francis K. Didden ,  Christian V. O'Keefe ,  Alan D. Kersey ,  Douglas H. Adamson

    发明人： Paul J. Rothman ,  Mark R. Fernald ,  Francis K. Didden ,  Christian V. O'Keefe ,  Alan D. Kersey ,  Douglas H. Adamson

    IPC分类号： B01D15/02

    CPC分类号： B03C5/00 ,  B01D15/02 ,  B01D37/02 ,  B01D39/00 ,  B03B1/04 ,  B03C1/01 ,  B03C5/02 ,  B03D1/016 ,  B03D1/023 ,  B03D1/14 ,  B04C1/00 ,  B07B1/00 ,  C02F1/24 ,  C22B15/0063 ,  Y10T428/2982

    摘要： A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of or coated with a synthetic material such as a polymer that is naturally hydrophobic or a polymer that is hydrophobically modified. The synthetic bead can be made of glass having a coating or polysiloxane. The synthetic beads can be placed in flotation cell containing a mixture of water, collector molecules, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The collector chemical can be xanthates. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.

    摘要翻译： 描述了用于矿物分离的合成珠粒。 合成珠具有由合成材料制成或涂覆的表面，例如天然疏水性的聚合物或被疏水改性的聚合物。 合成珠粒可以由具有涂层或聚硅氧烷的玻璃制成。 合成珠可以放置在含有水，收集分子，有价值材料和不想要的材料的混合物的浮选池中，或者在混合物从一个位置运输到另一个位置的管道中。 收集剂化学品可以是黄原酸盐。 携带矿物颗粒的富集的合成珠粒与混合物中的不需要的物质分离。 矿物颗粒然后通过低pH处理，超声波搅拌，热或电磁处理从合成珠粒中释放出来。

    Method for annealing an optical waveguide having a bragg grating to accelerate ageing
    48.
    发明授权
    Method for annealing an optical waveguide having a bragg grating to accelerate ageing 有权
    对具有布拉格光栅的光波导进行退火以加速老化的方法

    公开(公告)号：US06601411B2

    公开(公告)日：2003-08-05

    申请号：US09751672

    申请日：2001-03-26

    申请人： Trevor W. MacDougall ,  Martin A. Putnam ,  Mark R. Fernald

    发明人： Trevor W. MacDougall ,  Martin A. Putnam ,  Mark R. Fernald

    IPC分类号： C03B3700

    CPC分类号： C03B25/025 ,  C03B37/15

    摘要： The present invention provides a method for annealing an optical waveguide, including an optical fiber or large-diameter waveguide structure, having along some length an induced refractive index difference that decays over time and so causes drift in the wavelength of reflected light when broadband light is inserted into the optical waveguide. The method uses an assumed decay formula for the induced refractive index difference indicating how the induced refractive index difference decays over time, the assumed decay formula having parameters that depend on temperature. The method includes the steps of: determining the (temperature dependent) parameters in the assumed decay formula for both an operating temperature and an annealing temperature, the annealing temperature being higher than the operating temperature, by fitting the observed decay over a measuring time at the two temperatures; and determining an anneal time at the annealing temperature based on a maximum allowed drift at the operating temperature. In operation, an optical waveguide is then annealed at the anneal temperature for the anneal time to provide a heat treatment (annealing) process for stabilizing Bragg gratings inscribed in the optical waveguide.

    摘要翻译： 本发明提供了一种退光光波导的方法，该光波导包括光纤或大直径波导结构，沿着某种长度具有随时间衰减的诱导折射率差异，并且因此当宽带光为...时导致反射光的波长漂移 插入光波导中。 该方法使用假定的衰减公式来表示诱导折射率差异随时间的衰减如何，所假定的衰变公式具有取决于温度的参数。 该方法包括以下步骤：通过在所测量的时间内将所观察到的衰减拟合，确定在工作温度和退火温度下的假定衰减公式中的（温度依赖）参数，退火温度高于工作温度 两个温度 以及基于工作温度下的最大允许漂移，在退火温度下确定退火时间。 在操作中，然后在退火温度下将光波导退火退火时间，以提供用于稳定内插在光波导中的布拉格光栅的热处理（退火）工艺。

    OPTIMIZING ACOUSTIC EFFICIENCY OF A SONIC FILTER OR SEPARATOR
    50.
    发明申请
    OPTIMIZING ACOUSTIC EFFICIENCY OF A SONIC FILTER OR SEPARATOR 有权
    优化SONIC滤波器或分离器的声学效率

    公开(公告)号：US20140301902A1

    公开(公告)日：2014-10-09

    申请号：US13983398

    申请日：2012-02-06

    申请人： Mark R. Fernald ,  Timothy J. Bailey

    发明人： Mark R. Fernald ,  Timothy J. Bailey

    IPC分类号： B01J19/10

    CPC分类号： B01J19/10 ,  B01J2219/0877 ,  B03D1/028 ,  G01F23/2961 ,  G01F23/2967

    摘要： Apparatus features a container and a transducer. The container is made of a selected material and has a container wall with a selected thickness, and configured to hold a fluid therein. The transducer is configured on the outside of the container wall, and is also configured to provide a standing wave into the fluid. The selected thickness and material of the container wall is chosen to ensure about a ½ wavelength of a desired frequency exists within the container wall, so as to substantially reduce back reflections toward the transducer due to any mismatch in acoustic impedance at the interface between the container wall and the fluid, and so as to substantially maximize the amount of energy delivered to the fluid, thus improving the operating efficiency of the apparatus.

    摘要翻译： 装置具有容器和换能器。 容器由选定的材料制成并且具有选定厚度的容器壁，并且构造成在其中容纳流体。 换能器构造在容器壁的外侧，并且还构造成将静音提供到流体中。 选择容器壁的所选厚度和材料以确保在容器壁内存在所需频率的1/2波长，从而基本上减小朝向换能器的反射反射，因为在容器之间的界面处的声阻抗的任何失配 壁和流体，并且基本上使输送到流体的能量的量最大化，从而提高了设备​​的操作效率。