Patents by Inventor Xiangping Meng

Xiangping Meng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8965747
    Abstract: An automatic three-phase unbalanced load compensation experimental device includes an automatic compensation device, a load simulation part, and detection, display and control parts. The automatic compensation device includes power capacitors and intelligent grouping compound switches. The detection, display and control part includes a plurality of current transformers, molded case circuit breakers, a three-phase digital display ammeter, a three-phase electric power monitoring instrument, a protocol conversion module, RS-485 buses, Ethernet cables and an upper computer. The load simulation part includes phase A, B and C loads which are in star connection and are same in component and circuit connection, an analog output module and a relay output module. A power monitoring instrument and digital ammeter are connected to the grid by circuit breaker and the plurality of current transformers. The automatic compensation device and load simulation part are connected to the grid in parallel.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: February 24, 2015
    Assignees: Northeastern University, Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
    Inventors: Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
  • Publication number: 20130054204
    Abstract: Disclosed are an automatic three-phase unbalanced load compensation experimental device and its control method. The experimental device comprises an automatic compensation device, a load simulation part, and detection, display and control parts. The automatic compensation device comprises power capacitors and intelligent grouping compound switches; the detection, display and control part comprises current transformers, molded case circuit breakers, a three-phase digital display ammeter, a three-phase electric power monitoring instrument, a protocol conversion module, 485 buses, Ethernet cables and an upper computer; the load simulation part comprises phase A, B and C loads which are in star connection and are same in component and circuit connection, an analog output module and a relay output module. Power monitoring instrument and digital ammeter are connected to the grid by circuit breaker and current transformer.
    Type: Application
    Filed: May 30, 2012
    Publication date: February 28, 2013
    Applicants: NORTHEASTERN UNIVERSITY
    Inventors: Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
  • Patent number: 8304243
    Abstract: A reagent for classification of leukocytes includes (a) at least two cationic surfactants; (b) at least one organic compound bearing a hydrophobic group and an anionic group; (c) a buffer for adjusting pH into a range of approximately 2-8. Also disclosed is a method for classifying leukocytes with the reagent. With the reagent and method, erythrocytes are lysed rapidly and classification of leukocytes into five groups is achieved in the same channel. The reaction may be carried out at approximately between 10-40° C. and scattered light signals may be detected at two angles for measuring the classification of leukocytes into five groups.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 6, 2012
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Bing Liu, Wenjuan Xu, Xiangping Meng, Yanmei Qiao, Mulong Liu
  • Publication number: 20120183992
    Abstract: A reagent for classification of leukocytes includes (a) at least two cationic surfactants; (b) at least one organic compound bearing a hydrophobic group and an anionic group; (c) a buffer for adjusting pH into a range of approximately 2-8. Also disclosed is a method for classifying leukocytes with the reagent. With the reagent and method, erythrocytes are lysed rapidly and classification of leukocytes into five groups is achieved in the same channel. The reaction may be carried out at approximately between 10-40° C. and scattered light signals may be detected at two angles for measuring the classification of leukocytes into five groups.
    Type: Application
    Filed: March 23, 2012
    Publication date: July 19, 2012
    Applicant: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Bing LIU, Wenjuan Xu, Xiangping Meng, Yanmei Qiao, Mulong Liu
  • Patent number: 8163559
    Abstract: A reagent for four-part differentiation of white blood cells is provided. In one embodiment the reagent has an osmolality below 50 mOsm/kg H2O. A method for differentiating white blood cells using the reagent is also provided. The disclosure provides for a rapid lysis of red blood cells and four-part differentiation of white blood cells. The reagent may be simple in components and a surfactant is not necessary, but optional. A wide range of pH values may be suitable for the reagent.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: April 24, 2012
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Yanmei Qiao, Bing Liu, Xiangping Meng, Wenjuan Xu, Mulong Liu
  • Patent number: 8143064
    Abstract: A reagent for classification of leukocytes includes (a) at least two cationic surfactants; (b) at least one organic compound bearing a hydrophobic group and an anionic group; (c) a buffer for adjusting pH into a range of approximately 2-8. Also disclosed is a method for classifying leukocytes with the reagent. With the reagent and method, erythrocytes are lysed rapidly and classification of leukocytes into five groups is achieved in the same channel. The reaction may be carried out at approximately between 10-40° C. and scattered light signals may be detected at two angles for measuring the classification of leukocytes into five groups.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: March 27, 2012
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Bing Liu, Wenjuan Xu, Xiangping Meng, Yanmei Qiao, Mulong Liu
  • Publication number: 20110151562
    Abstract: A reagent for four-part differentiation of white blood cells is provided. In one embodiment the reagent has an osmolality below 50 mOsm/kg H2O. A method for differentiating white blood cells using the reagent is also provided. The disclosure provides for a rapid lysis of red blood cells and four-part differentiation of white blood cells. The reagent may be simple in components and a surfactant is not necessary, but optional. A wide range of pH values may be suitable for the reagent.
    Type: Application
    Filed: January 28, 2011
    Publication date: June 23, 2011
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Yanmei Qiao, Bing Liu, Xiangping Meng, Wenjuan Xu, Mulong Liu
  • Publication number: 20090162830
    Abstract: A reagent for classification of leukocytes includes (a) at least two cationic surfactants; (b) at least one organic compound bearing a hydrophobic group and an anionic group; (c) a buffer for adjusting pH into a range of approximately 2-8. Also disclosed is a method for classifying leukocytes with the reagent. With the reagent and method, erythrocytes are lysed rapidly and classification of leukocytes into five groups is achieved in the same channel. The reaction may be carried out at approximately between 10-40° C. and scattered light signals may be detected at two angles for measuring the classification of leukocytes into five groups.
    Type: Application
    Filed: November 5, 2008
    Publication date: June 25, 2009
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Bing LIU, Wenjuan XU, Xiangping MENG, Yanmei QIAO, Mulong LIU
  • Publication number: 20090155764
    Abstract: A reagent for four-part differentiation of white blood cells is provided. In one embodiment the reagent has an osmolarity below 50 mOsm/kg H2O. A method for differentiating white blood cells using the reagent is also provided. The disclosure provides for a rapid lysis of red blood cells and four-part differentiation of white blood cells. The reagent may be simple in components and a surfactant is not necessary, but optional. A wide range of pH values may be suitable for the reagent.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Yanmei Qiao, Bing Liu, Xiangping Meng, Wenjuan Xu, Mulong Liu