Patents by Inventor Weiqiang Zhou
Weiqiang Zhou 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: 11155483Abstract: A method for efficiently producing PHA comprising: inoculating PHA fermentation strains into a fermentation medium for fermentation under the condition of being capable of producing PHA through fermentation; subjecting the fermentation broth to a solid-liquid separation to obtain fermentation supernatant and thallus precipitate; breaking the cell walls of the thallus precipitate, and subjecting the wall-broken products to a plate and frame filtration to prepare PHA; pre-coating a filter cloth for the plate and frame filtration with a PHA layer; at least part of the water of the fermentation medium is PHA process wastewater. The method utilizes the PHA process wastewater as at least part of the water of the fermentation medium, and filters and separates the broken thallus with the plate and frame filtration equipment pre-coated with PHA layer to prepare PHA, thereby recycling the high-salt wastewater, reducing costs, and potentially separating PHA on a large scale for industrial production.Type: GrantFiled: December 28, 2020Date of Patent: October 26, 2021Assignees: Nutrition & Health Research Institute, COFCO Corporation, COFCO (jilin) Bio-Chemical Technology CO., Ltd, COFCO Biotechnology Co., Ltd., Tsinghua UniversityInventors: Yi Tong, Yi Li, Fang Tian, Weiqiang Zhou, Yuanheng Guo, Guoqiang Chen, Dayong Li, Haijun Liu, Kejia Xu, Anni Liu, Bo Chen, Tai An, Xiaoyan Wang, Chao Peng, Xuemei Shen, Jin Tao, Lida Wu, Kai Yang, Qiong Wu
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Patent number: 11118006Abstract: The present disclosure relates to the technical field of biotechnology and polymer synthesis, and discloses a method for producing polylactic acid, the method comprises the following steps: (i) inoculating a lactic acid fermentation strain into a lactic acid fermentation culture medium to perform a fermentation, so as to obtain a fermentation broth containing lactate; (ii) separating the fermentation broth to obtain a lactic acid; (iii) synthesizing a polymer-grade lactide by using the lactic acid as a raw material; (iv) subjecting the polymer-grade lactide to a polymerization reaction in a polymerization reaction device to obtain a polylactic acid. Through the above technical solution, the polylactic acid can be efficiently produced in the present disclosure.Type: GrantFiled: December 30, 2020Date of Patent: September 14, 2021Assignees: Nutrition & Health Research Institute, COFCO Corporation, COFCO (jilin) Bio-Chemical Technology Co., Ltd, Jilin COFCO Biomaterial Co., Ltd, COFCO Biotechnology Co., Ltd.Inventors: Yi Tong, Yi Li, Bo Chen, Peng Chen, Weiqiang Zhou, Zhigang Liu, Tai An, Xiaoyan Wang, Chao Peng, Kai Yang
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Patent number: 10475528Abstract: Methods, systems, and articles of manufacture are described that facilitate computation of a model of an interface between two molecules and analyzing characteristics of the interface. The complex of the two molecules can be modeled, and location of the atoms on the surface can be determined. One of the two molecules can be similarly modeled, and the location of the atoms on the surface can be determined. An interface model utilizing atoms that are located in the same place on the complex and the molecule can be calculated. Properties of the interface can be utilized to analyze the interaction between the two molecules.Type: GrantFiled: July 22, 2011Date of Patent: November 12, 2019Assignee: CITY UNIVERSITY OF HONG KONGInventors: Weiqiang Zhou, Hong Yan
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Publication number: 20170331862Abstract: The present disclosure provides a method for accessing a cloud service and an access device. The method includes: sending, to a to-be-accessed cloud service, an access request packet that includes a cloud service interface type identifier of a piece of characteristic information and an access address of the to-be-accessed cloud service, when an access response packet that is returned by the to-be-accessed cloud service and that indicates successful matching is received, using interface version information corresponding to the cloud service interface type identifier as target cloud service interface version information, and connecting to the to-be-accessed cloud service based on the target cloud service interface version information and the access account. In this case, a degree of complexity of establishing a connection to a cloud service is decreased, and work efficiency is increased.Type: ApplicationFiled: July 31, 2017Publication date: November 16, 2017Inventors: Chao WANG, Weiqiang ZHOU
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Publication number: 20170181598Abstract: The present invention is directed to a drum dishwasher, the washing method is completely different from the existing dishwasher, washing-up is through push the tableware that is distributed freely and is immersed in water to produce relative motion with the water, so as to achieve the purpose of cleaning. Its characteristic structure comprising: drum (101) for placing and driving tableware, wrapped around the drum (101) for water filled bucket (111), support and drive system, control system, and so on.Type: ApplicationFiled: January 29, 2015Publication date: June 29, 2017Inventor: WEIQIANG ZHOU
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Patent number: 8571546Abstract: The invention discloses a method for implementing dual-homing, including: setting each one of any two core control equipment as a standby for each other, connecting a network entity belonging to one of the core control equipment with the two core control equipment through a primary link and a standby link respectively; setting the primary link connected with the core control equipment as activated, and setting the standby link connected with the core control equipment inactive; determining whether the core control equipment corresponding to the primary link is out of service, if the core control equipment corresponding to the primary link is out of service, activating the standby link; otherwise, continuously determining whether the core control equipment corresponding to the primary link is out of service. The invention also discloses another method for implementing dual-homing, by which the reliability of the network can be improved.Type: GrantFiled: January 13, 2012Date of Patent: October 29, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Jiongjiong Gu, Chunhui Zhao, Yunxia Cai, Zhenhua Liu, Hanbing Chen, Changcheng Guo, Yong Zhong, Yong Lin, Weiqiang Zhou
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Patent number: 8529690Abstract: The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.Type: GrantFiled: July 15, 2010Date of Patent: September 10, 2013Assignee: Nanjing University of TechnologyInventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
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Publication number: 20130228102Abstract: The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.Type: ApplicationFiled: July 15, 2010Publication date: September 5, 2013Applicant: Nanjing University of TechnologyInventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
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Patent number: 8404039Abstract: A method for secondarily synthesizing calcium sulphoaluminate mineral in Portland cement clinker is provided. The method includes adding gypsum into raw Portland cement, calcination, then heating twice to re-form calcium sulphoaluminate mineral that has decomposed at high temperature in the clinker. This method can increase the content of calcium sulphoaluminate mineral in the clinker. As a result, the advantages of the calcium sulphoaluminate mineral in the clinker may be obtained, such as improvement of the early stage performance and long-term performance of the cement clinker and increase in the quantity of mixture in the cement.Type: GrantFiled: July 15, 2010Date of Patent: March 26, 2013Assignee: Nanjing University of TechnologyInventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
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Publication number: 20130024175Abstract: Methods, systems, and articles of manufacture are described that facilitate computation of a model of an interface between two molecules and analyzing characteristics of the interface. The complex of the two molecules can be modeled, and location of the atoms on the surface can be determined. One of the two molecules can be similarly modeled, and the location of the atoms on the surface can be determined. An interface model utilizing atoms that are located in the same place on the complex and the molecule can be calculated. Properties of the interface can be utilized to analyze the interaction between the two molecules.Type: ApplicationFiled: July 22, 2011Publication date: January 24, 2013Applicant: CITY UNIVERSITY OF HONG KONGInventors: Weiqiang Zhou, Hong Yan
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Publication number: 20120285350Abstract: A method for secondarily synthesizing calcium sulphoaluminate mineral in Portland cement clinker is provided. The method includes adding gypsum into raw Portland cement, calcination, then heating twice to re-form calcium sulphoaluminate mineral that has decomposed at high temperature in the clinker. This method can increase the content of calcium sulphoaluminate mineral in the clinker. As a result, the advantages of the calcium sulphoaluminate mineral in the clinker may be obtained, such as improvement of the early stage performance and long-term performance of the cement clinker and increase in the quantity of mixture in the cement.Type: ApplicationFiled: July 15, 2010Publication date: November 15, 2012Applicant: Nanjing University of TechnologyInventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
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Publication number: 20120106318Abstract: The invention discloses a method for implementing dual-homing, including: setting each one of any two core control equipment as a standby for each other, connecting a network entity belonging to one of the core control equipment with the two core control equipment through a primary link and a standby link respectively; setting the primary link connected with the core control equipment as activated, and setting the standby link connected with the core control equipment inactive; determining whether the core control equipment corresponding to the primary link is out of service, if the core control equipment corresponding to the primary link is out of service, activating the standby link; otherwise, continuously determining whether the core control equipment corresponding to the primary link is out of service. The invention also discloses another method for implementing dual-homing, by which the reliability of the network can be improved.Type: ApplicationFiled: January 13, 2012Publication date: May 3, 2012Applicant: Huawei Technologies Co., Ltd.Inventors: Jiongjiong Gu, Chunhui Zhao, Yunxia Cai, Zhenhua Liu, Hanbing Chen, Changcheng Guo, Yong Zhong, Yong Lin, Weiqiang Zhou
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Patent number: 7894410Abstract: A method and a system for implementing backup based on session border controllers, including: a terminal device registers to a first soft switch via a first session border controller; the terminal device detects whether a failure concerning the first session border controller occurs. If a failure occurs, the terminal device registers to the first soft switch via a second session border controller; the first or the second session border controller detects whether a failure concerning the first soft switch occurs. If a failure occurs, the terminal device registers to the second soft switch. In addition, the invention further provides a corresponding system.Type: GrantFiled: January 9, 2007Date of Patent: February 22, 2011Assignee: Huawei Technologies Co., Ltd.Inventors: Weiqiang Zhou, Jing Wang
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Publication number: 20070183347Abstract: The invention discloses a method for implementing dual-homing, including: setting each one of any two core control equipment as a standby for each other, connecting a network entity belonging to one of the core control equipment with the two core control equipment through a primary link and a standby link respectively; setting the primary link connected with the core control equipment as activated, and setting the standby link connected with the core control equipment inactive; determining whether the core control equipment corresponding to the primary link is out of service, if the core control equipment corresponding to the primary link is out of service, activating the standby link; otherwise, continuously determining whether the core control equipment corresponding to the primary link is out of service. The invention also discloses another method for implementing dual-homing, by which the reliability of the network can be improved.Type: ApplicationFiled: February 22, 2007Publication date: August 9, 2007Inventors: Jiongjiong Gu, Chunhui Zhao, Yunxia Cai, Zhenhua Liu, Hanbing Chen, Changcheng Guo, Yong Zhong, Yong Lin, Weiqiang Zhou
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Publication number: 20070160058Abstract: A method and a system for implementing backup based on session border controllers, including: a terminal device registers to a first soft switch via a first session border controller; the terminal device detects whether a failure concerning the first session border controller occurs. If a failure occurs, the terminal device registers to the first soft switch via a second session border controller; the first or the second session border controller detects whether a failure concerning the first soft switch occurs. If a failure occurs, the terminal device registers to the second soft switch. In addition, the invention further provides a corresponding system.Type: ApplicationFiled: January 9, 2007Publication date: July 12, 2007Inventors: Weiqiang Zhou, Jing Wang