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).
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Patent number: 8965747Abstract: 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: GrantFiled: May 30, 2012Date of Patent: February 24, 2015Assignees: 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 GuoInventors: Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
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Publication number: 20130054204Abstract: 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: ApplicationFiled: May 30, 2012Publication date: February 28, 2013Applicants: NORTHEASTERN UNIVERSITYInventors: Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
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Patent number: 8304243Abstract: 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: GrantFiled: March 23, 2012Date of Patent: November 6, 2012Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Bing Liu, Wenjuan Xu, Xiangping Meng, Yanmei Qiao, Mulong Liu
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Publication number: 20120183992Abstract: 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: ApplicationFiled: March 23, 2012Publication date: July 19, 2012Applicant: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Bing LIU, Wenjuan Xu, Xiangping Meng, Yanmei Qiao, Mulong Liu
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Patent number: 8163559Abstract: 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: GrantFiled: January 28, 2011Date of Patent: April 24, 2012Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Yanmei Qiao, Bing Liu, Xiangping Meng, Wenjuan Xu, Mulong Liu
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Patent number: 8143064Abstract: 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: GrantFiled: November 5, 2008Date of Patent: March 27, 2012Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Bing Liu, Wenjuan Xu, Xiangping Meng, Yanmei Qiao, Mulong Liu
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Publication number: 20110151562Abstract: 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: ApplicationFiled: January 28, 2011Publication date: June 23, 2011Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.Inventors: Yanmei Qiao, Bing Liu, Xiangping Meng, Wenjuan Xu, Mulong Liu
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Publication number: 20090162830Abstract: 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: ApplicationFiled: November 5, 2008Publication date: June 25, 2009Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.Inventors: Bing LIU, Wenjuan XU, Xiangping MENG, Yanmei QIAO, Mulong LIU
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Publication number: 20090155764Abstract: 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: ApplicationFiled: December 17, 2008Publication date: June 18, 2009Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.Inventors: Yanmei Qiao, Bing Liu, Xiangping Meng, Wenjuan Xu, Mulong Liu