公开(公告)号：US20090130767A1

公开(公告)日：2009-05-21

申请号：US12275117

申请日：2008-11-20

申请人： Xiaodong Liu ,  Christopher A. Pohl

发明人： Xiaodong Liu ,  Christopher A. Pohl

IPC分类号： G01N33/00 ,  C07F7/10 ,  C07F7/08 ,  C09K3/00 ,  B01D15/08

CPC分类号： B01J20/3261 ,  B01J20/286 ,  B01J20/287 ,  B01J20/3257 ,  B01J20/3259 ,  C07B2200/11 ,  C07F7/1804

摘要： The present invention provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compounds to substrates and methods for using the compositions in a variety of chromatographic applications.

摘要翻译： 本发明提供新颖的硅化合物，制备这些新型硅化合物的方法，包含这些新型硅化合物附着在底物上的组合物，将新型硅化合物附着于底物的方法以及在各种色谱应用中使用该组合物的方法。

公开(公告)号：US20080293959A1

公开(公告)日：2008-11-27

申请号：US11753934

申请日：2007-05-25

申请人： Xiaodong Liu ,  Christopher A. Pohl ,  Jinhua Chen

发明人： Xiaodong Liu ,  Christopher A. Pohl ,  Jinhua Chen

IPC分类号： C07F7/08

CPC分类号： B01J20/288 ,  B01J20/289 ,  B01J20/3204 ,  B01J20/3208 ,  B01J20/3219 ,  B01J20/3257 ,  B01J20/3259 ,  B01J20/3263 ,  B01J20/3285

摘要： The current invention provides compositions, which are useful as stationary phases for a variety of chromatographic applications, such as high performance liquid chromatography (HPLC). The compositions include a substrate (e.g., silica gel), covalently bound to a compound, which includes both a hydrophobic moiety and a hydrophilic moiety, which is preferably a 1,2-diol moiety. The hydrophobic moiety is sufficiently hydrophobic for the compositions to exhibit reversed phase characteristics and typically incorporates at least 5 carbon atoms in sequence. Based on having both hydrophilic and hydrophobic functionalities, the new stationary phases exhibit unique chromatographic properties. For example, these media can be used in either hydrophilic (HILIC) mode, in which the mobile phase includes a high percentage of an organic solvent, or in reversed phase mode, in which the mobile phase contains a higher percentage of an aqueous solvent. The current invention also provides methods of making and using the compounds and compositions of the invention.

摘要翻译： 本发明提供组合物，其可用作多种色谱应用的固定相，例如高效液相色谱（HPLC）。 组合物包括与包含疏水部分和亲水部分的化合物共价结合的底物（例如硅胶），其优选为1,2-二醇部分。 疏水部分足够疏水以使组合物显示反相特性，并通常依次包含至少5个碳原子。 基于具有亲水和疏水官能度，新的固定相显示出独特的色谱性质。 例如，这些介质可用于亲水（HILIC）模式，其中流动相包含高百分比的有机溶剂，或以相反模式使用，其中流动相含有较高百分比的水性溶剂。 本发明还提供了制备和使用本发明化合物和组合物的方法。

公开(公告)号：US07315487B2

公开(公告)日：2008-01-01

申请号：US11490078

申请日：2006-07-21

申请人： Weiqing Zhu ,  Xiaodong Liu ,  Wen Xu

发明人： Weiqing Zhu ,  Xiaodong Liu ,  Wen Xu

IPC分类号： G01S15/89

CPC分类号： G01S15/8902 ,  G01S15/8927

摘要： A processing method of this invention relates to an angle of arrival estimation technique, where by a high resolution bathymetric sidescan sonar signal process method it measure the micro-geomorphy of the sea bottom. That is the multi-subarray sub-space fitting method. The invention shows that when the array elements number is fixed, no matter there is mutual coupling or not between array elements, there exists one subarray which has the smallest phase estimation standard deviation, the method of this invention overcomes the phase error caused by mutual coupling and enhances the measurement precision.

摘要翻译： 本发明的处理方法涉及一种到达角度估计技术，其中通过高分辨率的测深侧视声纳信号处理方法测量海底的微观地貌。 那就是多子阵列子空间拟合方法。 本发明表明，当阵列元件数量固定时，无论阵列元件之间是否存在互耦，存在一个具有最小相位估计标准偏差的子阵列，本发明的方法克服了由相互耦合引起的相位误差 并提高测量精度。

公开(公告)号：US20070240998A1

公开(公告)日：2007-10-18

申请号：US11403565

申请日：2006-04-12

申请人： Jun Cheng ,  Petr Jandik ,  Xiaodong Liu ,  Christopher Pohl

发明人： Jun Cheng ,  Petr Jandik ,  Xiaodong Liu ,  Christopher Pohl

IPC分类号： G01N27/26

CPC分类号： G01N27/49

摘要： In one embodiment, the present invention is directed to a pulsed electrochemical detection method comprising (a) flowing a liquid sample stream including at least one analyte past a working electrode in a flow-through cell; (b) applying at least three pulsed electrical potentials to the working electrode, (1) a first conditioning potential, (2) a second detection and oxidative cleaning potential, and (3) a third reductive cleaning potential, said second potential being higher than said first and third potentials and said first potential being higher than said third potential; and (c) detecting the output from said working electrode during the time period of applying said second potential.

摘要翻译： 在一个实施方案中，本发明涉及脉冲电化学检测方法，其包括（a）将包含至少一种分析物的液体样品流流过流通池中的工作电极; （b）向工作电极施加至少三个脉冲电势，（1）第一调节电位，（2）第二检测和氧化清洗电位，和（3）第三还原清洗电位，所述第二电位高于 说第一和第三个潜力，并说第一个潜力高于第三个潜力; 以及（c）在施加所述第二电位的时间段期间检测来自所述工作电极的输出。

公开(公告)号：US20050095440A1

公开(公告)日：2005-05-05

申请号：US10702109

申请日：2003-11-04

申请人： Xiaodong Liu ,  Andrei Bordunov ,  Christopher Pohl

发明人： Xiaodong Liu ,  Andrei Bordunov ,  Christopher Pohl

IPC分类号： B01J20/286 ,  B01J20/287 ,  B01J20/32 ,  C07F7/18 ,  B32B9/00 ,  B32B27/00 ,  C08G77/04

CPC分类号： B01J20/3242 ,  B01J20/286 ,  B01J20/287 ,  B01J2220/54 ,  C07F7/1804 ,  Y10T428/31663

摘要： Polyfunctional silicon compounds of one of the following formula: in which N-PG is a nitrogen containing function group. Also, such compounds bound to substrates for use as chromatography packing.

摘要翻译： 下列化学式的多官能硅化合物：其中N-PG是含氮官能团。 此外，这些化合物与底物结合，用作色谱填充。

公开(公告)号：US20050036404A1

公开(公告)日：2005-02-17

申请号：US10450944

申请日：2002-02-08

申请人： Weiqing Zhu ,  Xiaodong Liu ,  Min Zhu ,  Feng Pan ,  Xiangjum Zhang ,  Changhong Wang ,  Yuling Wang

发明人： Weiqing Zhu ,  Xiaodong Liu ,  Min Zhu ,  Feng Pan ,  Xiangjum Zhang ,  Changhong Wang ,  Yuling Wang

IPC分类号： G01S15/89

CPC分类号： G01S15/8904

摘要： A high resolution bathymetric sidescan sonar system for measuring micro-geomorphy of the sea bottom having an underwater vehicle, an underwater electronic subsystem mounted on the underwater vehicle and containing a transmitter and a receiver, and two sonar arrays mounted symmetrically on two sides of a lower part of the underwater vehicle and being connected to the underwater electronic subsystem through a cable. Each sonar array has a transmitting linear array and three or more parallel receiving linear arrays. The parallel receiving linear arrays are arranged at equal spaces, and the space d between two adjacent parallel receiving linear arrays is λ>d≧λ/2, in which λ is a wavelength of an acoustic wave, and an operation frequency of the parallel receiving linear arrays ranges from 30 kHz to 1200 kHz.

摘要翻译： 一种用于测量具有水下航行器的海底微地貌的高分辨率测深侧视声纳系统，安装在水下航行器上并包含发射器和接收器的水下电子子系统，以及对称地安装在下侧两侧的两个声纳阵列 部分水下航行器，并通过电缆连接到水下电子子系统。 每个声纳阵列具有发送线性阵列和三个或更多个并行接收线性阵列。 平行接收线性阵列被布置成相等的空间，并且两个相邻的并行接收线性阵列之间的空间d是λ> d> =λ/ 2，其中λ是声波的波长，并行的并行接收线性阵列的操作频率 接收线性阵列的范围为30 kHz至1200 kHz。