The invention provides a flexible ultrasonic transducer array, which comprises at least two ultrasonic transducer units and flexible layer medium. The ultrasonic transducer is arranged in the flexible layer medium or on the surface of the flexible layer medium in the form of array; an ultrasonic dev.....
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The invention provides a wireless ultrasonic scanning system which comprises an ultrasonic sensor, a motor, an ultrasonic transceiver, a high-speed data sampling module, a machine controller and a total control module; wherein the ultrasonic sensor arranged on the motor can move according to the con.....
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The present invention relates to a strain gauge and methods of making such wherein the gauge contains a doped polymeric fluid suitable for measuring elongations of more than 10%.
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The present invention is wearable physical sign detector, physical sign telemetering and warning system and method. The system includes a physical sign detector, an analysis and judgment base stationand an emergency treatment device. The physical sign detector sends detected physical sign informatio.....
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(-)-EGCG是最丰富的儿茶素，其被认为是化学预防及抗癌剂。然而，(-)-EGCG具有至少一个局限性：其生物利用度差。本发明提供了具有下列通式的化合物，其中R11、R12、R13、R21、R22、R2、R3和R4均各自独立地选自-H和C1-C10酰氧基；以及R5选自-H、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C7环烷基、苯基、苯甲基和C3-C7环烯基，同时，最后提到的7个基团中的每一个都可用1到6个卤素原子的任意组合取代；R11、R12、R13、R21、R22、R2、R3和R4中至少有一个是-H，这些化合物被证实比其用作蛋白酶体抑制剂以减少肿瘤细胞生长的未被保护对应物更.....
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