Patents by Inventor Yongxiang Li
Yongxiang Li 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: 11969805Abstract: A method and device for milling a large-diameter aspheric surface by using a splicing method and a polishing method to solve the problems of large time consumption and serious tool wear in the machining of a meter-scale large-diameter aspheric surface are disclosed. where an aspheric surface is discretized into a series of rings with different radii, and the rings are sequentially machined via generating cutting by using an annular grinding wheel tool with an outer diameter less than ¼ of a diameter of the aspheric surface; the rings are equally spaced, there are a total of N rings, and a width of any ring is jointly determined by the Nth ring, the (N?1)th ring, positioning accuracy and a generatrix equation of the aspheric surface; and the aspheric surface is enveloped by a large number of rings. A contact area between the tool and a workpiece surface is rings.Type: GrantFiled: July 30, 2020Date of Patent: April 30, 2024Assignee: SOOCHOW UNIVERSITYInventors: Xi Chen, Zhuocheng Dai, Peiji Guo, Yongxiang Zhu, Chenchao Li
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Patent number: 11965010Abstract: Disclosed are a method for preparing a porcine-derived interferon-delta 5 (pIFN-?5) and an application of the pIFN-?5, where the method for preparing pIFN-?5 includes the following steps: step S1, obtaining a DNA fragment containing pIFN-?5 gene through reverse transcription-polymerase chain reaction (RT-PCR) amplification by using the total RNA of pretreated porcine small intestinal epithelial cells IPEC-J2; step S2, inserting the DNA fragment containing pIFN-?5 gene into an exogenous expression vector to construct a recombinant expression vector for expressing the pIFN-?5 gene; and step S3, introducing the recombinant expression vector into a suitable host cell, and driving the host cell to express the pIFN-?5 gene to obtain the pIFN-?5. The recombinant pIFN-?5 protein is used to prepare drugs or preparations for inhibiting infection of porcine epidemic diarrhea virus (PEDV), porcine transmissible gastroenteritis virus (TGEV), porcine delta coronavirus (PDCoV) and porcine rotavirus (PRoV).Type: GrantFiled: April 27, 2023Date of Patent: April 23, 2024Assignee: JIANGSU ACADEMY OF AGRICULTURAL SCIENCESInventors: Baochao Fan, Bin Li, Shiying Song, Xuehan Zhang, Xuejiao Zhu, Jinzhu Zhou, Yongxiang Zhao, Jizong Li, Rongli Guo, Weilu Guo, Xue Zhang
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Patent number: 11951461Abstract: A solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, a ratio of macropore specific volume to specific length of catalyst particles of about 1.0-2.5 ml/(g·mm), and a ratio of specific surface area to length of catalyst particles of about 3.40-4.50 m2/mm. The macropore refers to pores having a diameter of more than 50 nm. An alkylation catalyst is based on the solid acid catalyst and can be used in alkylation reactions. The solid acid catalyst and alkylation catalyst show an improved catalyst service life and/or trimethylpentane selectivity when used in the alkylation of isoparaffins with olefins.Type: GrantFiled: January 20, 2020Date of Patent: April 9, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Yongxiang Li, Xuhong Mu, Chengxi Zhang, Hexin Hu, Qiang Fu, Xingtian Shu
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Patent number: 11912643Abstract: A liquid-solid axial moving bed reaction and regeneration apparatus and a solid acid alkylation process by using the liquid-solid axial moving bed reaction and regeneration apparatus.Type: GrantFiled: October 22, 2019Date of Patent: February 27, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Lifeng Hu, Shuandi Hou, Junyi Mao, Zhenxing Zhu, Xiaojin Tang, Zheng Liu, Yongxiang Li, Zhihai Zhao
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Publication number: 20240025875Abstract: A compound serving as a thyroid hormone ? receptor agonist and uses of the compound, also provided is a pharmaceutical composition comprising the compound. The compound or the pharmaceutical composition is applicable in preparing a medicament for preventing, treating, or alleviating thyroid hormone ? receptor agonist-modulated diseases, and specifically applicable in preparing a medicament for treating nonalcoholic fatty liver disease.Type: ApplicationFiled: September 16, 2021Publication date: January 25, 2024Applicant: SUNSHINE LAKE PHARMA CO., LTD.Inventors: Zheng GU, Jianhao LI, Jianchao DENG, Yongxiang LI, Haoxiong QIN, Daoqian CHEN, Xiaomin ZHENG, Jianghong YU, Huantian ZHAO
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Publication number: 20230418317Abstract: A band-gap reference source circuit is configured to be connected with an electronic device. The band-gap reference source circuit comprises: a power supply, a start circuit, a core circuit, an output circuit and a shunt circuit, wherein the power supply is connected to first ends of the start circuit, the core circuit and the output circuit; a second end of the start circuit is connected to the core circuit; a second end of the core circuit is connected to the output circuit, and a control end of the core circuit is connected to the shunt circuit and used for providing a control signal for the shunt circuit; an output end of the output circuit is used for connecting to an electronic device; and a first end of the shunt circuit is connected to the output end of the output circuit, and controls a current of a second end.Type: ApplicationFiled: September 14, 2023Publication date: December 28, 2023Applicant: SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD.Inventors: Chifeng LIU, Yongxiang LI, Xin ZHANG
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Publication number: 20230387008Abstract: A semiconductor structure and a manufacturing method thereof are provided. The manufacturing method includes: providing a substrate; forming an ion implantation area in the substrate, an upper surface of the ion implantation area having a distance from an upper surface of the substrate; forming an initial word line trench in the substrate, the initial word line trench extending from the upper surface of the substrate into the ion implantation area; widening the initial word line trench to form a word line trench, a width of a bottom of the word line trench being greater than a minimum width of the word line trench.Type: ApplicationFiled: August 15, 2022Publication date: November 30, 2023Inventors: Yongxiang LI, Min-Hui Chang
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Patent number: 11759726Abstract: A liquid phase alkylation product from an alkylation reaction unit is introduced into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column n, then introduced into a second heat-exchanger and further heated to 100° C.-150° C., then introduced into the high-pressure fractionating column and subjected to fractionation at 2.0 MPa-4.0 MPa, the vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under at 0.2 MPa-1.Type: GrantFiled: September 6, 2019Date of Patent: September 19, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Qing Yuan, Junyi Mao, Zhenxing Zhu, Tao Huang, Zhihai Zhao, Yongxiang Li, Lifeng Hu, Xiaojin Tang
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Patent number: 11655423Abstract: A process for separating an alkylation product includes introducing a liquid phase alkylation product from an alkylation reaction unit into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column, then into a second heat-exchanger and subsequently into the high-pressure fractionating column. The vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under a condition of 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.Type: GrantFiled: September 6, 2019Date of Patent: May 23, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Qing Yuan, Junyi Mao, Zhenxing Zhu, Tao Huang, Zhihai Zhao, Yongxiang Li, Lifeng Hu, Xiaojin Tang
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Patent number: 11518684Abstract: A NaY molecular sieve with an aluminum-rich surface is prepared using a process that includes the steps of: a. mixing a directing agent and a first silicon source to obtain a first mixture, wherein the directing agent has a molar composition of Na2O:Al2O3:SiO2:H2O=(6-25):1:(6-25):(200-400); b. mixing the first mixture obtained in the step a with a second silicon source, an aluminum source and water to obtain a second mixture; c. carrying out hydrothermal crystallization on the second mixture obtained in the step b, and collecting a solid product. Calculated as SiO2, the weight ratio of the first silicon source to the second silicon source is 1:(0.01-12). The NaY molecular sieve has larger aluminum distribution gradient from the surface to the center of the particle than the conventional molecular sieve.Type: GrantFiled: May 27, 2019Date of Patent: December 6, 2022Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Qiang Fu, Yongxiang Li, Chengxi Zhang, Hexin Hu, Xuhong Mu, Xingtian Shu
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Publication number: 20220088580Abstract: A solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, a ratio of macropore specific volume to specific length of catalyst particles of about 1.0-2.5 ml/(g·mm), and a ratio of specific surface area to length of catalyst particles of about 3.40-4.50 m2/mm. The macropore refers to pores having a diameter of more than 50 nm. An alkylation catalyst is based on the solid acid catalyst and can be used in alkylation reactions. The solid acid catalyst and alkylation catalyst show an improved catalyst service life and/or trimethylpentane selectivity when used in the alkylation of isoparaffins with olefins.Type: ApplicationFiled: January 20, 2020Publication date: March 24, 2022Inventors: Yongxiang LI, Xuhong MU, Chengxi ZHANG, Hexin HU, Qiang FU, Xingtian SHU
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Publication number: 20210394143Abstract: A liquid-solid radial moving bed reaction apparatus and a solid acid alkylation process by using the liquid-solid radial moving bed reaction apparatus, the liquid-solid radial moving bed reaction apparatus comprises: A radial moving bed reactor, a spent catalyst receiver, a catalyst regenerator, and a regenerated catalyst receiver that are successively connected, wherein the catalyst discharging outlet of the regenerated catalyst receiver is communicated with the catalyst inlet of the radial moving bed reactor; a reaction stream distribution zone, a catalyst bed, and a stream-after-the-reaction collection zone are arranged in the radial moving bed reactor from the inside to the outside or from the outside to the inside, the reaction stream distribution zone is communicated with the reaction stream feeding pipeline; the stream-after-the-reaction collection zone is communicated with the stream-after-the-reaction withdrawing pipe; A component-based mixer is arranged on the reaction stream feeding pipeline; the cType: ApplicationFiled: October 29, 2019Publication date: December 23, 2021Inventors: Lifeng HU, Shuandi HOU, Junyi MAO, Zhenxing ZHU, Xiaojin TANG, Zheng LIU, Yongxiang LI, Zhihai ZHAO
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Publication number: 20210395167Abstract: A liquid-solid axial moving bed reaction and regeneration apparatus and a solid acid alkylation process by using the liquid-solid axial moving bed reaction and regeneration apparatus.Type: ApplicationFiled: October 22, 2019Publication date: December 23, 2021Inventors: Lifeng HU, Shuandi HOU, Junyi MAO, Zhenxing ZHU, Xiaojin TANG, Zheng LIU, Yongxiang LI, Zhihai ZHAO
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Publication number: 20210324274Abstract: A process for separating an alkylation product includes introducing a liquid phase alkylation product from an alkylation reaction unit into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column, then into a second heat-exchanger and subsequently into the high-pressure fractionating column. The vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under a condition of 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.Type: ApplicationFiled: September 6, 2019Publication date: October 21, 2021Inventors: Qing YUAN, Junyi MAO, Zhenxing ZHU, Tao HUANG, Zhihai ZHAO, Yongxiang LI, Lifeng HU, Xiaojin TANG
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Publication number: 20210322893Abstract: A liquid phase alkylation product from an alkylation reaction unit is introduced into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column n, then introduced into a second heat-exchanger and further heated to 100° C.-150° C., then introduced into the high-pressure fractionating column and subjected to fractionation at 2.0 MPa-4.0 MPa, the vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under at 0.2 MPa-1.Type: ApplicationFiled: September 6, 2019Publication date: October 21, 2021Inventors: Qing YUAN, Junyi MAO, Zhenxing ZHU, Tao HUANG, Zhihai ZHAO, Yongxiang LI, Lifeng HU, Xiaojin TANG
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Publication number: 20210214236Abstract: A NaY molecular sieve with an aluminum-rich surface is prepared using a process that includes the steps of: a. mixing a directing agent and a first silicon source to obtain a first mixture, wherein the directing agent has a molar composition of Na2O: Al2O3: SiO2: H2O=(6-25): 1: (6-25): (200-400); b. mixing the first mixture obtained in the step a with a second silicon source, an aluminum source and water to obtain a second mixture; c. carrying out hydrothermal crystallization on the second mixture obtained in the step b, and collecting a solid product. Calculated as SiO2, the weight ratio of the first silicon source to the second silicon source is 1: (0.01-12). The NaY molecular sieve has larger aluminum distribution gradient from the surface to the center of the particle than the conventional molecular sieve.Type: ApplicationFiled: May 27, 2019Publication date: July 15, 2021Inventors: Qiang FU, Yongxiang LI, Chengxi ZHANG, Hexin HU, Xuhong MU, Xingtian SHU
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Patent number: 10885670Abstract: A stereo vision measuring system and measuring method are provided. The system includes a main control device and at least two cooperation devices; each of the cooperation devices is a movable device, and is provided with an image acquiring part; the cooperation device is configured to acquire a first image of a first scene and first image information of the first image and transmit them to the main control device in a calibrating phase, and the cooperation device is further configured to acquire a second image of a second scene and second image information of the second image, and transmit the second image information to the main control device in a measuring phase; the main control device is configured to acquire parameter information of the image acquiring parts in the calibrating phase; the main control device is further configured to obtain three-dimensional reconstruction information of the second scene.Type: GrantFiled: March 30, 2018Date of Patent: January 5, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yongxiang Li, Lijie Zhang
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Publication number: 20190012809Abstract: A stereo vision measuring system and measuring method are provided. The system includes a main control device and at least two cooperation devices; each of the cooperation devices is a movable device, and is provided with an image acquiring part; the cooperation device is configured to acquire a first image of a first scene and first image information of the first image and transmit them to the main control device in a calibrating phase, and the cooperation device is further configured to acquire a second image of a second scene and second image information of the second image, and transmit the second image information to the main control device in a measuring phase; the main control device is configured to acquire parameter information of the image acquiring parts in the calibrating phase; the main control device is further configured to obtain three-dimensional reconstruction information of the second scene.Type: ApplicationFiled: March 30, 2018Publication date: January 10, 2019Inventors: Yongxiang Li, Lijie Zhang
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Publication number: 20180299395Abstract: This invention provides a highly-selective and sensitive Nitrogen oxide gas sensor based on the resistive transducing platforms using two-dimensional (2D) tin disulphide (SnS2) flakes that can operate below 150° C. This sensor operates based on the physisorption of nitrogen oxide on the surface of the sensitive layer. The fabrication of the sensors is low-cost. The tin disulphide is preferably produced by reacting tin dichloride at elevated temperature with powdered sulphur in a liquid phase to form tin disulphide nano particles and separating the tin disulphide nano particles from the liquid phase.Type: ApplicationFiled: June 10, 2016Publication date: October 18, 2018Applicant: ROYAL MELBOURNE INSTITUTE OF TECHNOLOGYInventors: Kourosh KALANTAR-ZADEH, Jian Zhen OU, Nam HA, Yongxiang LI
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Patent number: 9718696Abstract: A low temperature co-fired ceramic powder has a chemical composition of xR2O-yR?O-zM2O3-wM?O2, wherein R is Li, Na and/or K, R? is Mg, Ca, Sr, Ba, Zn and/or Cu, M is B, Al, Ga, In, Bi, Nd, Sm, and/or La, M? is Si, Ge, Sn, Ti, and/or Zr, x?0, y?0, z?20%, w?15%, and x+y+z+w=1. The preparation method comprises: weighing constituent powders according to the composition of the ceramic powder, and uniformly mixing these powders as a raw material powder; and presintering the raw material powder in a muffle furnace followed by grinding, the presintering comprising gradiently heating the raw material powder to a maximum temperature of 950° C. by first rising to 350-450° C. and staying thereat for a period, then staying at intervals of 50-100° C. for a period.Type: GrantFiled: March 10, 2016Date of Patent: August 1, 2017Assignee: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCESInventors: Zhifu Liu, Yongxiang Li