Patents by Inventor Wenda Zhang
Wenda Zhang 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: 11879101Abstract: The present disclosure relates to the technical field of application of bioengineering technology in microbial oil recovery, and discloses a Brevibacillus agri strain and preparation thereof and a method for preparing surfactant, and use thereof. The Brevibacillus agri strain is deposited in the China General Microbiological Culture Collection Center under the accession number CGMCC No. 9983. The Brevibacillus agri and its preparation may effectively enhance the crude oil recovery; the method for preparing the surfactant allow the lipopeptide biosurfactant to have good physical properties, effectively reduce the surface tension, and have good emulsifying performance for petroleum, various hydrocarbons and lipids.Type: GrantFiled: May 11, 2021Date of Patent: January 23, 2024Assignee: Yangtze UniversityInventors: Yuehui She, Fan Zhang, Zhi Zhang, Puyong Yao, Fei Li, Hao Dong, Shanshan Sun, Gaoming Yu, Shaojin Yi, Wenda Zhang, Linqi Hu, Yangyang Feng, Anying Zheng, Yang Li
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Patent number: 11702582Abstract: A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes: Brevibacillus borstelensis-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a Brevibacillus borstelensis-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.Type: GrantFiled: April 9, 2021Date of Patent: July 18, 2023Assignee: Yangtze UniversityInventors: Yuehui She, Fan Zhang, Zhi Zhang, Puyong Yao, Fei Li, Hao Dong, Shanshan Sun, Gaoming Yu, Shaojin Yi, Wenda Zhang, Linqi Hu, Yangyang Feng, Anying Zheng, Yang Li
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Patent number: 11347281Abstract: A device for fixing a hard disk is provided, which is arranged in a case and can install multiple hard disks at one time. The device for fixing a hard disk includes fixing brackets and an elastic support member. The elastic support member is arranged between two adjacent fixing brackets. The number of the fixing bracket is even, and the fixing brackets are arranged in symmetry. The hard disk is placed between the elastic support member and one single fixing bracket, which can quickly and conveniently realize the fixing and installation of the hard disk, save a lot of space, and can be arranged in array in the case. The device has high reliability and good shock absorption effects. When the space of the case is limited, the demand of high-density storage configuration can also be achieved.Type: GrantFiled: December 25, 2018Date of Patent: May 31, 2022Assignee: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.Inventors: Wenda Zhang, Wenhan Xu
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Publication number: 20220049165Abstract: The present disclosure relates to the technical field of application of bioengineering technology in microbial oil recovery, and discloses a Brevibacillus agri strain and preparation thereof and a method for preparing surfactant, and use thereof. The Brevibacillus agri strain is deposited in the China General Microbiological Culture Collection Center under the accession number CGMCC No. 9983. The Brevibacillus agri and its preparation may effectively enhance the crude oil recovery; the method for preparing the surfactant allow the lipopeptide biosurfactant to have good physical properties, effectively reduce the surface tension, and have good emulsifying performance for petroleum, various hydrocarbons and lipids.Type: ApplicationFiled: May 11, 2021Publication date: February 17, 2022Inventors: Yuehui SHE, Fan ZHANG, Zhi ZHANG, Puyong YAO, Fei LI, Hao DONG, Shanshan SUN, Gaoming YU, Shaojin YI, Wenda ZHANG, Linqi HU, Yangyang FENG, Anying ZHENG, Yang LI
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Publication number: 20220041919Abstract: A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes: Brevibacillus borstelensis-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a Brevibacillus borstelensis-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.Type: ApplicationFiled: April 9, 2021Publication date: February 10, 2022Inventors: Yuehui She, Fan Zhang, Zhi Zhang, Puyong Yao, Fei Li, Hao Dong, Shanshan Sun, Gaoming Yu, Shaojin Yi, Wenda Zhang, Linqi Hu, Yangyang Feng, Anying Zheng, Yang Li
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Publication number: 20210333844Abstract: A device for fixing a hard disk is provided, which is arranged in a case and can install multiple hard disks at one time. The device for fixing a hard disk includes fixing brackets and an elastic support member. The elastic support member is arranged between two adjacent fixing brackets. The number of the fixing bracket is even, and the fixing brackets are arranged in symmetry. The hard disk is placed between the elastic support member and one single fixing bracket, which can quickly and conveniently realize the fixing and installation of the hard disk, save a lot of space, and can be arranged in array in the case. The device has high reliability and good shock absorption effects. When the space of the case is limited, the demand of high-density storage configuration can also be achieved.Type: ApplicationFiled: December 25, 2018Publication date: October 28, 2021Applicant: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.Inventors: Wenda ZHANG, Wenhan XU
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Patent number: 11074941Abstract: A hard disk mounting device includes a hard disk carrier and a carrier fixing device. The hard disk carrier is provided with hard disk positioning studs and carrier positioning studs, and the hard disk positioning studs correspond to hard disk mounting holes in the hard disk. The carrier fixing device includes a left bracket and a right bracket which are symmetrically arranged. L-shaped retaining slots are provided in the left bracket and the right bracket respectively. The position and size of the L-shaped retaining slots correspond to those of the carrier positioning studs. By providing the hard disk carrier and the carrier fixing device, the hard disk is mounted on the hard disk carrier first, and then the hard disk carrier is mounted on the carrier fixing device, and the hard disk is fixed by the hard disk positioning studs.Type: GrantFiled: January 5, 2018Date of Patent: July 27, 2021Assignee: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.Inventor: Wenda Zhang
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Publication number: 20210225411Abstract: A hard disk mounting device includes a hard disk carrier and a carrier fixing device. The hard disk carrier is provided with hard disk positioning studs and carrier positioning studs, and the hard disk positioning studs correspond to hard disk mounting holes in the hard disk. The carrier fixing device includes a left bracket and a right bracket which are symmetrically arranged. L-shaped retaining slots are provided in the left bracket and the right bracket respectively. The position and size of the L-shaped retaining slots correspond to those of the carrier positioning studs. By providing the hard disk carrier and the carrier fixing device, the hard disk is mounted on the hard disk carrier first, and then the hard disk carrier is mounted on the carrier fixing device, and the hard disk is fixed by the hard disk positioning studs.Type: ApplicationFiled: January 5, 2018Publication date: July 22, 2021Applicant: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.Inventor: Wenda ZHANG
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Patent number: 8416695Abstract: A method, a device, and a system for network interception are provided. The method for network interception includes the following steps. A matching rule obtained by parsing an interception policy. Received data are selected by adopting a deep packet inspection (DPI) according to the matching rule so as to obtain an interception result, in which the received data are obtained by adopting data preprocessing to filter packet data according to a service customizing rule obtained by parsing the interception policy. The system for network interception includes a service probe server (SPS) and a service analyze server (SAS). Thus, various packet data services transmitted over an Internet protocol (IP) network can be intercepted.Type: GrantFiled: June 4, 2009Date of Patent: April 9, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Tingyong Liu, Guoqing Liu, Wenda Zhang
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Publication number: 20090323536Abstract: A method, a device, and a system for network interception are provided. The method for network interception includes the following steps. A matching rule obtained by parsing an interception policy. Received data are selected by adopting a deep packet inspection (DPI) according to the matching rule so as to obtain an interception result, in which the received data are obtained by adopting data preprocessing to filter packet data according to a service customizing rule obtained by parsing the interception policy. The system for network interception includes a service probe server (SPS) and a service analyze server (SAS). Thus, various packet data services transmitted over an Internet protocol (IP) network can be intercepted.Type: ApplicationFiled: June 4, 2009Publication date: December 31, 2009Applicant: CHENGDU HUAWEI SYMANTEC TECHNOLOGIES CO., LTD.Inventors: Tingyong Liu, Guoqing Liu, Wenda Zhang