NOVEL BETA-GALACTOSIDE-ALPHA2,3-SIALYLTRANSFERASE, A GENE ENCODING THEREOF, AND A METHOD FOR PRODUCING THEREOF
    2.
    发明申请
    NOVEL BETA-GALACTOSIDE-ALPHA2,3-SIALYLTRANSFERASE, A GENE ENCODING THEREOF, AND A METHOD FOR PRODUCING THEREOF 审中-公开
    新型β-GALACTOSIDE-ALPHA2,3-SIALYLTRANSFERASE,其编码的基因及其生产方法

    公开(公告)号:US20120070863A1

    公开(公告)日:2012-03-22

    申请号:US13218267

    申请日:2011-08-25

    摘要: The present invention provides a novel β-galactoside-α2,3-sialyltransferase and a nucleic acid encoding the sialyltransferase. The present invention also provides a microorganism producing the sialyltransferase, as well as a method for producing the sialyltransferase using such a microorganism. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant β-galactoside-α2,3-sialyltransferase. The present invention further provides a method for preparing a sialylsugar chain, which uses the sialyltransferase of the present invention.

    摘要翻译: 本发明提供了一种新型的半乳糖苷-α2,3-唾液酸转移酶和编码唾液酸转移酶的核酸。 本发明还提供了产生唾液酸转移酶的微生物,以及使用这种微生物生产唾液酸转移酶的方法。 本发明还提供了携带编码唾液酸转移酶的核酸和载体转化的宿主细胞的载体以及重组α-半乳糖苷-α2,3-唾液酸转移酶的制备方法。 本发明还提供了使用本发明的唾液酸转移酶制备唾液酸糖链的方法。

    CHOPPER TYPE DC-DC CONVERTER
    3.
    发明申请
    CHOPPER TYPE DC-DC CONVERTER 失效
    CHOPPER型DC-DC转换器

    公开(公告)号:US20090003021A1

    公开(公告)日:2009-01-01

    申请号:US12146214

    申请日:2008-06-25

    申请人: Hiroshi TSUKAMOTO

    发明人: Hiroshi TSUKAMOTO

    IPC分类号: H02M3/00

    摘要: A chopper type DC-DC converter includes a voltage converting circuit, a comparative wave generating circuit, a comparator group, and a switch control circuit. The voltage converting circuit converts a first voltage into a second voltage. The comparative wave generating circuit generates first and second comparative waves such that the voltage range of the first comparative wave is different from the voltage range of the second comparative wave. The comparator group generates a first comparison result signal indicating a result of comparison between the first comparative wave and an error signal indicating an error between the second voltage and target voltage and a second comparison result signal indicating a result of comparison between the second comparative wave and the error signal. The switch control circuit controls the voltage converting circuit based on the first and second comparison signals. The comparative wave generating circuit includes first and second comparative wave generating circuits. The first and second comparative wave generating circuits respectively generate the first and second comparative waves based on different source voltage groups.

    摘要翻译: 斩波型DC-DC转换器包括电压转换电路,比较波发生电路,比较器组和开关控制电路。 电压转换电路将第一电压转换成第二电压。 比较波发生电路产生第一和第二比较波,使得第一比较波的电压范围不同于第二比较波的电压范围。 比较器组产生第一比较结果信号,该第一比较结果信号指示第一比较波与指示第二电压与目标电压之间的误差的误差信号的比较结果,以及指示第二比较波和第二比较波之间的比较结果的第二比较结果信号 误差信号。 开关控制电路基于第一和第二比较信号控制电压转换电路。 比较波发生电路包括第一和第二比较波发生电路。 第一和第二比较波产生电路分别基于不同的源电压组产生第一和第二比较波。