Patents by Inventor Yongming Liu
Yongming Liu 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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Publication number: 20240113748Abstract: Provided is an improved beam control method of an array antenna based on frequency diversity. The method includes: signals from a transmitter are received by a receiving array which includes a first sub-array and a second sub-array, wherein the first sub-array includes M uniformly arranged array elements, the second sub-array includes N uniformly arranged array elements, M and N are coprime integers, and N?0; a signal received by each array element in the receiving array is input into a constructed model, and a covariance matrix is output after processing the signal via the model; a virtual array is constructed at a receiver, wherein a virtual array element in the virtual array is a second-order statistic calculated according to the covariance matrix; and a frequency is randomly selected for each virtual array element from a frequency set of the virtual array, so as to form a beam pattern.Type: ApplicationFiled: October 15, 2021Publication date: April 4, 2024Inventors: Shengheng LIU, Yongming HUANG, Zihuan MAO, Tianheng NI, Xiaohu YOU
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Patent number: 11946334Abstract: A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.Type: GrantFiled: September 30, 2020Date of Patent: April 2, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD, SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD, DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTDInventors: Chuanwei Zhao, Zhonghua Wu, Yanjun Zhou, Honglin Tang, Zhihe Liu, Xueliang Pei, Haoyu Sun, Zhenguo Su, Bo Kang, Hui Zhang, Huangang Zhu, Yongming Chen, Zhongshuai Chen
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Publication number: 20240093604Abstract: A method for determining a productivity of a coalbed methane well without shutting down the well includes steps of: obtaining coalbed methane basic data; based on PVT experimental data, determining a relationship table between a pressure and a coalbed methane deviation factor, and a relationship table between the pressure and a pseudo-pressure; recording daily gas production rates, bottomhole flow pressures, and cumulative gas productions at each stabilized flow pressure test moment in at least three different production stages; determining formation pressures corresponding to each stabilized flow pressure test moment based on a material balance equation; according to the formation pressures, the bottomhole flow pressures and the production rates, determining coefficients in a deliverability equation of the coalbed methane well for determining the deliverability equation; substituting the formation pressures and the bottomhole flow pressures into the deliverability equation for obtaining corresponding productType: ApplicationFiled: December 3, 2023Publication date: March 21, 2024Inventors: Bo Hu, Xiaobo Liu, Yongyi Zhou, Kui Chen, Yongming He, Linsong Liu, Yaonan Yu, Jiawei Zhang, Yongheng Wang
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Publication number: 20240091739Abstract: Provided are a mercapto group-loaded layered double hydroxide (LDH)-based magnetic composite particle, and a preparation method and use thereof. The method includes: dissolving a water-soluble divalent magnesium salt and a water-soluble trivalent aluminum salt in water to obtain a mixed salt solution; pumping ammonia water into the mixed salt solution, and performing reaction I under stirring, subjecting an obtained product to centrifugation, and washing product obtained with deionized water; mixing the product with water, ethanol, and a coupling agent KH-580 to obtain a mixture, subjecting the mixture to reaction II while stirring to obtain mercapto group-loaded LDH; mixing the mercapto group-loaded LDH with ferroferric oxide and sodium alginate, adding deionized water thereto, and stirring to obtain a homogeneous mixed solution; adding the homogeneous mixed solution into a calcium chloride solution dropwise to form a magnetic bead; and leaving the magnetic bead to harden, and then washing and drying.Type: ApplicationFiled: September 8, 2023Publication date: March 21, 2024Applicants: Institute of Soil Science, CAS, China Construction Eighth Engrg Division Corp, Ltd.Inventors: Yongming LUO, Guoming Liu, Chen Tu, Shuai Yang, Xiangfeng Huang, Zhongyuan Li, Runlai Luo
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Patent number: 11933777Abstract: A model for predicting bioavailability of arsenic in site soil and a construction method and an application thereof, includes steps of: leveling soil after selecting a measuring point, vertically placing a measuring sleeve, fully supplying water to site soil to be measured, balancing for 20-40 min, measuring a water content in a soil volume not less than 40%, placing a piston DGT device into the measuring sleeve and pressing the device into soil, covering a top of the measuring sleeve with a wind shield, cleaning the piston DGT device after the measurement, analyzing a concentration of available arsenic by ICP-MS, and measuring available arsenic of soil; linearly fitting the available arsenic measured by a DGT method with human bioavailable arsenic measured by a UBM method, and obtaining a model for predicting bioavailability of arsenic in site soil.Type: GrantFiled: October 30, 2023Date of Patent: March 19, 2024Assignee: INSTITUTE OF SOIL SCIENCE, CHINESE ACADEMY OF SCIENCESInventors: Chen Tu, Yongming Luo, Ying Liu, Guoming Liu, Shuai Yang
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Patent number: 11913128Abstract: A method for compact and flat bismuth metal preparation by electrolysis is provided. In the method, one or more of ?-naphthol, acacia, sulfonated and vulcanized alkylphenol ethoxylate and naphthol ethoxylate oxides are added to the acidic solution of bismuth methanesulfonate as additives, and the cathodic bismuth is obtained by electrolysis at 20-80° C. The method for bismuth metal preparation is simple and easy to promote, environment-friendly, and the obtained bismuth metal has a flat and compact surface and good plate formation effect.Type: GrantFiled: January 5, 2022Date of Patent: February 27, 2024Assignee: CENTRAL SOUTH UNIVERSITYInventors: Yongming Chen, Shanshan Liu, Henghui Wang, Shenghai Yang, Cong Chang, Changliu Xiang, Changhong Wang, Tao Luo, Jie Dai
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Publication number: 20240054329Abstract: A system includes a Bayesian Spatiotemporal Graph Transformer (B-STAR) architecture that models spatial and temporal relationship of multiple agents under uncertainties. The system enables Multi-Agent Trajectory Prediction for safety-critical engineering applications, (e.g., autonomous driving and flight systems) and considers the impact of various sources, such as environmental conditions, pilot/controller behaviors, and potential conflicts with nearby aircraft. It is shown that B-STAR achieves state-of-the-art performance on the ETH/UCY pedestrian dataset with UQ competence.Type: ApplicationFiled: August 15, 2023Publication date: February 15, 2024Applicant: Arizona Board of Regents on behalf of Arizona State UniversityInventor: Yongming Liu
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Publication number: 20230342414Abstract: A machine-learning framework for multi-fidelity modeling provides three components: multi-fidelity data compiling, multi-fidelity perceptive field and convolution, and deep neural network for mapping. This framework captures and utilizes implicit relationships between any high-fidelity datum and all available low-fidelity data using a defined local perceptive field and convolution. First, the framework treats multi-fidelity data as image data and processes them using a CNN, which is very scalable to high dimensional data with more than two fidelities. Second, the flexibility of nonlinear mapping facilitates the multi-fidelity aggregation and does not need to assume specific relationships among multiple fidelities. Third, the framework does not assume that multi-fidelity data are at the same order or from the same physical mechanisms (e.g., assumptions are needed for some error estimation-based multi-fidelity model).Type: ApplicationFiled: March 31, 2023Publication date: October 26, 2023Applicant: Arizona Board of Regents on behalf of Arizona State UniversityInventor: Yongming Liu
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Patent number: 9234118Abstract: The present invention provides a coating system for an article including a first component having a surface in frictional engagement with a surface of a second component, wherein at least a portion of at least one surface of the component(s) is coated with a coating prepared from a composition including a first, curable organopolysiloxane comprising at least two alkenyl groups; and a second, curable organopolysiloxane comprising at least two polar groups, the second organopolysiloxane being different from the first organopolysiloxane, which can provide low breakloose force when used in syringe assemblies.Type: GrantFiled: November 10, 2011Date of Patent: January 12, 2016Assignee: Becton, Dickinson and CompanyInventors: Xia Zhao, Yongming Liu
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Patent number: 8816022Abstract: The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of a medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.Type: GrantFiled: October 25, 2013Date of Patent: August 26, 2014Assignee: Becton, Dickinson and CompanyInventors: Xia Zhao, Yongming Liu
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Publication number: 20140052076Abstract: The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of a medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.Type: ApplicationFiled: October 25, 2013Publication date: February 20, 2014Applicant: Becton, Dickinson and CompanyInventors: Xia Zhao, Yongming Liu
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Patent number: 8603638Abstract: The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.Type: GrantFiled: April 8, 2011Date of Patent: December 10, 2013Assignee: Becton, Dickinson and CompanyInventors: Yongming Liu, Xia Zhao
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Publication number: 20120143148Abstract: The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.Type: ApplicationFiled: April 8, 2011Publication date: June 7, 2012Applicant: Becton, Dickinson and CompanyInventors: Xia Zhao, Yongming Liu
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Publication number: 20120058351Abstract: The present invention provides a coating system for an article including a first component having a surface in frictional engagement with a surface of a second component, wherein at least a portion of at least one surface of the component(s) is coated with a coating prepared from a composition including a first, curable organopolysiloxane comprising at least two alkenyl groups; and a second, curable organopolysiloxane comprising at least two polar groups, the second organopolysiloxane being different from the first organopolysiloxane, which can provide low breakloose force when used in syringe assemblies.Type: ApplicationFiled: November 10, 2011Publication date: March 8, 2012Applicant: BECTON, DICKINSON AND COMPANYInventors: Xia Zhao, Yongming Liu
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Publication number: 20120053530Abstract: The present invention provides a coating system for an article including a first component having a surface in frictional engagement with a surface of a second component, wherein at least a portion of at least one surface of the component(s) is coated with a coating prepared from a composition including a first, curable organopolysiloxane comprising at least two alkenyl groups; and a second, curable organopolysiloxane comprising at least two polar groups, the second organopolysiloxane being different from the first organopolysiloxane, which can provide low breakloose force when used in syringe assemblies.Type: ApplicationFiled: November 10, 2011Publication date: March 1, 2012Applicant: BECTON, DICKINSON AND COMPANYInventors: Xia Zhao, Yongming Liu
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Patent number: 8075995Abstract: The present invention provides a coating system for an article including a first component having a surface in frictional engagement with a surface of a second component, wherein at least a portion of at least one surface of the component(s) is coated with a coating prepared from a composition including a first, curable organopolysiloxane comprising at least two alkenyl groups; and a second, curable organopolysiloxane comprising at least two polar groups, the second organopolysiloxane being different from the first organopolysiloxane, which can provide low breakloose force when used in syringe assemblies.Type: GrantFiled: March 29, 2007Date of Patent: December 13, 2011Assignee: Becton, Dickinson and CompanyInventors: Xia Zhao, Yongming Liu
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Patent number: 8062266Abstract: A vascular access device within an external environment may include a body and a septum at least partially housed within the body. Septum may at least substantially seal a lumen extending through the body. The septum may further include at least a first and a second material. At least one of the materials of the septum may be selected or adapted to resist tearing of the septum.Type: GrantFiled: October 3, 2007Date of Patent: November 22, 2011Assignee: Becton, Dickinson and CompanyInventors: Austin Jason McKinnon, Alexy T. Yessayan, Lantao Guo, David Ou-Yang, Yongming Liu, Kelly D. Christensen, Weston F. Harding
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Patent number: 7943242Abstract: The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.Type: GrantFiled: March 29, 2007Date of Patent: May 17, 2011Assignee: Becton, Dickinson and CompanyInventors: Yongming Liu, Xia Zhao
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Publication number: 20080132832Abstract: A vascular access device within an external environment may include a body and a septum at least partially housed within the body. Septum may at least substantially seal a lumen extending through the body. The septum may further include at least a first and a second material. At least one of the materials of the septum may be selected or adapted to resist tearing of the septum.Type: ApplicationFiled: October 3, 2007Publication date: June 5, 2008Applicant: BECTON, DICKINSON AND COMPANYInventors: Austin Jason McKinnon, Alexy T. Yessayan, Lantao Guo, David Ou-Yang, Yongming Liu, Kelly D. Christensen, Weston F. Harding
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Publication number: 20070287954Abstract: The present invention provides a coating system for an article including a first component having a surface in frictional engagement with a surface of a second component, wherein at least a portion of at least one surface of the component(s) is coated with a coating prepared from a composition including a first, curable organopolysiloxane comprising at least two alkenyl groups; and a second, curable organopolysiloxane comprising at least two polar groups, the second organopolysiloxane being different from the first organopolysiloxane, which can provide low breakloose force when used in syringe assemblies.Type: ApplicationFiled: March 29, 2007Publication date: December 13, 2007Applicant: BECTON, DICKINSON AND COMPANYInventors: Xia Zhao, Yongming Liu