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    • 57. 发明授权
    • Centrifugal extractor for organic phase using a height-adjustable weir and a divert disk
    • 使用高度可调堰和转向盘的有机相离心萃取器
    • US06379293B1
    • 2002-04-30
    • US09593415
    • 2000-06-14
    • Young-Hwan KimJi-Sup YoonJae-Hoo JungSeong-Won ParkHyun-Soo Park
    • Young-Hwan KimJi-Sup YoonJae-Hoo JungSeong-Won ParkHyun-Soo Park
    • B04B100
    • B04B11/082B01D11/0476B01D11/0492B04B1/02B04B9/12B04B11/06G21F9/04
    • A centrifugal extractor for extraction of an organic phase from a liquid mixture, such as liquid radioactive wastes, is disclosed. In the centrifugal extractor, both the separating weir and the divert disk are designed to be adjustable in their vertical positions. The extractor, thus, desirably separates the organic phase, including usable elements in addition to chemically toxic high radioactive elements, from the aqueous phase and desirably controls the reaction time of the two phases regardless of a variation of the mixing ratio and the rotational speed of the two phases. In the centrifugal extractor, a liquid suction and rotation unit sucks and rotates the liquid mixture and separates the organic phase from the aqueous phase while controlling the reaction time of the two phases. A height-adjustable separation weir unit is designed to locate the separating weir at a boundary layer between the two separated phases. A housing unit supports the suction and rotation unit and provides the path of two separated phases to the outside of the extractor.
    • 公开了一种用于从诸如液体放射性废物的液体混合物中萃取有机相的离心萃取器。 在离心萃取器中,分离堰和转向盘都设计成可以在垂直位置调节。 因此,提取器希望从水相中除去化学有毒的高放射性元素之外的有机相包括可用的元素,并且期望地控制两相的反应时间,而不管混合比和转速的变化如何 两个阶段。 在离心萃取器中,液体吸入和旋转单元吸取和旋转液体混合物,并且在控制两相的反应时间的同时将有机相与水相分离。 高度可调的分离堰单元设计用于将分离堰定位在两个分离相之间的边界层。 壳体单元支撑抽吸和旋转单元,并且将两个分离相的路径提供给提取器的外部。
    • 58. 发明授权
    • Bootstrap charge pump circuit
    • 自举电荷泵电路
    • US5943226A
    • 1999-08-24
    • US21316
    • 1998-02-10
    • Young-Hwan Kim
    • Young-Hwan Kim
    • G11C16/06H02M3/07H02M3/18
    • H02M3/073
    • A charge pump circuit is provided that includes a clock signal generator for generating a first and second clock signals respectively having a Vdd (a precharge voltage) level, and a third and fourth clock signals having 2Vdd levels (twice the precharge voltage) and phases substantially identical to the first and second clock signals. A precharge voltage output unit outputs a Vdd level of precharge voltage. A precharge pumping unit alternately performs a pumping operation and a precharging operation using a first pumping stage and a second pumping stage that function symmetrically to each other with regard to a precharge voltage outputted from the precharge voltage output unit in accordance with the first to fourth clock signals. The charge pump circuit alternatively performs the pumping operation and the precharge operation to improve pumping efficiency. In addition, the charge pump circuit has a less complex composition.
    • 提供一种电荷泵电路,其包括时钟信号发生器,用于产生分别具有Vdd(预充电电压)电平的第一和第二时钟信号,以及具有2Vdd电平(预充电电压的两倍)的第三和第四时钟信号, 与第一和第二时钟信号相同。 预充电电压输出单元输出Vdd电平的预充电电压。 预充电泵单元根据第一至第四时钟,相对于从预充电电压输出单元输出的预充电电压,使用第一泵送级和第二泵级,交替地执行泵送操作和预充电操作 信号。 电荷泵电路交替地执行泵送操作和预充电操作以提高泵送效率。 此外,电荷泵电路具有较不复杂的组成。