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    • 7. 发明授权
    • Mass separation method of magnolol from Magnoliae cortex radix
    • 厚朴从大叶皮质素的质量分离方法
    • US07608741B2
    • 2009-10-27
    • US11915721
    • 2005-06-21
    • Jin Sook KimYun Mi LeeDae Sik Jang
    • Jin Sook KimYun Mi LeeDae Sik Jang
    • C07C39/12
    • C07C37/82C07C37/004C07C37/685C07C37/84C07C39/21
    • The present invention related to method for the mass separation of magnolol from Magnoliae cortex or Magnoliae radix. The method comprises the steps of: 1) crushing Magnoliae cortex or Magnoliae radix, extracting the crushed material with organic solvent, adding n-hexane to the extract so as to obtain a n-hexane layer; 2) concentrating the n-hexane layer in a water bath at a temperature of 30-40° C. and a revolution speed of 40-200 RPM under reduced pressure so as to form a crude crystal; and 3) removing the n-hexane from the crude crystal, completely dissolving the crude crystal in chloroform, adding n-hexane to the n-hexane-containing solution, and leaving the solution to stand at room temperature so as to recrystallize the solution. In the method, a column chromatography step which is necessarily carried out in the general separation process is omitted so that separation process steps are reduced, leading to a saving in separation time. Also, expensive equipment is not required, leading a reduction in separation cost. Accordingly, the method is effective for the mass separation of expensive magnolol.
    • 本发明涉及厚朴与厚朴与木兰质量分离的方法。 该方法包括以下步骤:1)粉碎玉兰大麦或木兰,用有机溶剂萃取粉碎物,向提取液中加入正己烷,得到正己烷层; 2)将正己烷层在30-40℃的温度和40-200RPM的转速下在水浴中浓缩,以形成粗晶体; 3)从粗结晶中除去正己烷,将粗结晶完全溶解在氯仿中,向正己烷溶液中加入正己烷,使溶液在室温下静置,使溶液重结晶。 在该方法中,省略了在一般的分离过程中必须进行的柱色谱步骤,从而减少了分离工艺步骤,从而节省了分离时间。 此外,不需要昂贵的设备,导致分离成本的降低。 因此,该方法对于昂贵的厚朴酚的质量分离是有效的。
    • 9. 发明授权
    • OFDM transmission/receiving system and block encoding method therefor
    • OFDM发送/接收系统及其编码方法
    • US06810007B1
    • 2004-10-26
    • US09534630
    • 2000-03-27
    • Jin-sook Kim
    • Jin-sook Kim
    • H04J1100
    • H04L1/0057H04L1/0043H04L1/0052H04L27/2602H04L27/2617
    • An orthogonal frequency division multiplexing (OFDM) transmission/receiving system, and a block encoding method therefor, are provided. The OFDM transmission system includes a block encoder for encoding binary data of U length into V-ary data expressed in a group of n bits according to a predetermined mapping rule, a serial-to-parallel converter for converting the V-ary data into parallel data, a V-ary modulator for V-ary modulating V-ary data received in parallel to generate an orthogonal frequency division multiplexing (OFDM) symbol having U sub-symbols, and a transmitter for post-processing the OFDM symbol so that the OFDM symbol is suitable for telecommunications and transmitting the resultant OFDM symbol. In this method, Q-ary data is block encoded and Q-ary modulated to reduce the ratio of the peak power to the average power of an OFDM signal when it is transmitted, so that the OFDM signal can be transmitted at a high data transmission rate as compared to the prior art in which binary data is block encoded.
    • 提供了一种正交频分复用(OFDM)发送/接收系统及其编码方法。 OFDM传输系统包括块编码器,用于根据预定的映射规则将U长度的二进制数据编码成以n位组表示的V数据数据,用于将V数据转换为并行的串并转换器 数据,用于V并行调制V-ary调制器的并行调制V-ary数据,以产生具有U个子符号的正交频分复用(OFDM)符号,以及用于后处理OFDM符号的发射机,使得OFDM 符号适用于电信和发送所得的OFDM符号。 在这种方法中,Q-ary数据进行块编码和Q-ary调制,以降低峰值功率与OFDM信号在发送时的平均功率之比,从而可以以高数据传输方式发送OFDM信号 与其中二进制数据被块编码的现有技术相比。
    • 10. 发明授权
    • Forward direction power control method using backward direction power control sub-channel for mobile communication system
    • 使用反向功率控制子信道进行移动通信系统的正向功率控制方法
    • US06781966B1
    • 2004-08-24
    • US09643496
    • 2000-08-22
    • Jin Sook Kim
    • Jin Sook Kim
    • H04B700
    • H04W52/12H04W52/08H04W52/20
    • In the present invention, a forward direction power control method using a backward direction power control sub-channel for a mobile communication system is disclosed. The method according to the present invention is directed to rapidly and effectively controlling the power of a base station transmission signal using a power control, sub-channel in a backward direction pilot channel when performing an outer loop and inner loop in a mobile station of a mobile communication system which adapts an IS-2000 CDMA method and rapidly coping with a channel environment and forward direction wireless environment for thereby decreasing the power of a transmission signal of the base station and increasing the capacity of the system.
    • 在本发明中,公开了使用移动通信系统的反向功率控制子信道的正向功率控制方法。 根据本发明的方法涉及使用功率控制功能来快速有效地控制基站传输信号的功率,当执行外部环路的移动台中的外部环路和内部环路时,在向后导频信道中的子信道 移动通信系统,其适应IS-2000 CDMA方法,并且快速应对信道环境和前向无线环境,从而降低基站的传输信号的功率并增加系统的容量。