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    • 97. 发明申请
    • APPARATUS AND METHOD FOR VISUALIZATION OF PARTICLES SUSPENDED IN A FLUID AND FLUID FLOW PATTERNS USING ULTRASOUND
    • 使用超声波在液体和流体流动图案中悬浮的颗粒的可视化装置和方法
    • US20120227473A1
    • 2012-09-13
    • US13225787
    • 2011-09-06
    • Dipen N. Sinha
    • Dipen N. Sinha
    • G01N15/00
    • G01F1/74G01F1/66G01F1/662G01F1/7082G01N29/024G01N29/262
    • An apparatus and method for real-time visualization of particulate matter suspended in a static or flowing fluid and fluid flow patterns in a pipe, tube, conduit, or other container, are described. Ultrasonic scanning and detection of scattered sound from the particles in the fluid create a real-time image of the particles, or of flow patterns in the liquid. A mechanical wobbler directs a piezoelectric transducer over a chosen angle in an oscillatory manner. The transducer is operated in a pulse-echo mode wherein the same transducer detects the return signal from the target region through which particles are passing and/or a flow is present. The pulse-echo measurements are made rapidly and continuously during a single sweep of the transducer over the chosen angle. Received signals are processed in the ultrasound scanner electronics module and displayed as an image in real-time.
    • 描述了用于实时显示悬浮在管,管,导管或其它容器中的静态或流动流体和流体流动图案中的颗粒物质的装置和方法。 超声波扫描和检测来自流体中的颗粒的散射声产生颗粒的实时图像或液体中的流动图案。 机械摇摆器以振荡的方式将压电换能器引导到选定的角度。 换能器以脉冲回波模式操作,其中相同的换能器检测来自粒子通过的目标区域和/或流动存在的返回信号。 在选择的角度下,在换能器的单次扫描期间,快速且连续地进行脉冲回波测量。 接收到的信号在超声波扫描仪电子模块中进行处理,并作为图像实时显示。
    • 99. 发明授权
    • Advanced membrane electrode assemblies for fuel cells
    • 用于燃料电池的先进膜电极组件
    • US08227147B2
    • 2012-07-24
    • US11113678
    • 2005-04-22
    • Yu Seung KimBryan S. Pivovar
    • Yu Seung KimBryan S. Pivovar
    • H01M8/00H01M8/10C08J5/20B01J49/00
    • B01D69/12H01M4/881
    • A method of preparing advanced membrane electrode assemblies (MEA) for use in fuel cells. A base polymer is selected for a base membrane. An electrode composition is selected to optimize properties exhibited by the membrane electrode assembly based on the selection of the base polymer. A property-tuning coating layer composition is selected based on compatibility with the base polymer and the electrode composition. A solvent is selected based on the interaction of the solvent with the base polymer and the property-tuning coating layer composition. The MEA is assembled by preparing the base membrane and then applying the property-tuning coating layer to form a composite membrane. Finally, a catalyst is applied to the composite membrane.
    • 一种制备用于燃料电池的先进膜电极组件(MEA)的方法。 选择基础聚合物用于基膜。 选择电极组合物以根据基础聚​​合物的选择来优化膜电极组件所表现出的性能。 基于与基础聚合物和电极组成的相容性来选择性质调节涂层组合物。 基于溶剂与基础聚合物和性能调节涂层组合物的相互作用来选择溶剂。 通过制备基膜,然后施加性能调节涂层以形成复合膜来组装MEA。 最后,将催化剂应用于复合膜。