Patents by Inventor Xufeng LIU

Xufeng 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).

  • Publication number: 20240141785
    Abstract: A zonal bolt-grouting support device and method for cataclastic rock mass large deformation of a high-stress tunnel, the method includes: drill holes in surrounding rock of a tunnel against a tunnel face after rock mass excavation, install high-strength prestressed anchor members, apply a preload to anchor bolts when expansion anchoring agent is fully expanded and has a certain strength, and zonally grout the surrounding rock after stress adjustment. The high-strength prestressed anchor member comprises an anchor bolt, an expansion anchor agent, a decoupling material, a grouting device, a reverse anti-skid device, etc. The grouting device consists of a shallow grouting steel pipe, a deep grouting steel pipe and a grouting stop valve, and the grouting steel pipe is arranged side by side with the anchor bolt in a drill hole. The technical proposal of the invention effectively inhibits the large deformation of a cataclastic rock mass.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Inventors: Guojin Zhu, Pengzhi Pan, Xuexing Cao, Yangyi Zhou, Zhaofeng Wang, Shijie Yang, Xufeng Liu, Huyue Zhan, Fengqiong Li
  • Publication number: 20240141786
    Abstract: An active control method and device for large deformation of a deep thin-bedded surrounding rock, the active control method includes: drill holes in the surrounding rock of a tunnel against a tunnel face, add the active control device containing a sleeve, a high-strength prestressed anchor bolt, a resin anchoring agent and a grouting device into drill holes, apply a preload to the anchor bolt when the resin anchoring agent has a certain strength, and carry out lag grouting in the surrounding rock through the grouting device after stress adjustment, and the high-strength prestressed anchor bolt and the grouting device are inserted in the sleeve with holes on the side. The active control device or method of the invention can effectively reduce the fracture depth and degree of a thin-bedded soft rock in deep engineering, and effectively inhibit the occurrence of large deformation disasters.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Inventors: Hua Zhou, Yelin Feng, Fugang Zhao, Pengzhi Pan, Hailong Huang, Zhaofeng Wang, Xufeng Liu, Yangyi Zhou, Longhai Xi, Xuanjiao Zhen
  • Publication number: 20240062582
    Abstract: The present disclosure provides a method and device for dynamic recognition of emotion based on facial muscle movement monitoring, including: obtaining muscle movement data on one side and continuous frame images on the other side; obtaining multiple emotional states related to emotions, associating each emotional state with its corresponding continuous frame images, associating each emotional state with the muscle movement data corresponding to the continuous frame images at the same location and at the same time, to form a training set, building an emotion recognition model; inputting the muscle movement data and continuous frame images obtained in real time into the emotion recognition model to obtain a corresponding emotional state. This method builds an emotion recognition model through muscle movement data and continuous frame image, and uses motion data to make up for the parts of small action images that cannot be collected, thereby obtaining accurate emotion detection results.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Applicant: Air Force Medical University
    Inventors: Shengjun Wu, Xufeng Liu, Zhikang Zou, Xuefeng Wang, Xiang Xu, Ping Wei, Xiuchao Wang, Hui Wang, Peng Fang, Kangning Xie, Guoxin Li, Minhua Hu
  • Patent number: 11684969
    Abstract: A tundish, wherein a steel passing hole (43) is provided at a lower portion of a gas-curtain weir refractory body (42); an argon duct (46), a gas chamber (45) and a gas-permeable brick (44) are connected to form a gas-curtain generating device, and the gas-curtain generating device is installed at the lower portion of the gas-curtain weir refractory body (42); the gas-permeable brick (44) is provided in association with the position of the steel passing hole (43), and a length of the gas-permeable brick is designed larger than a width of the steel passing hole (43); and a gas-curtain weir plate (4) is provided in a tundish container, the gas-curtain weir refractory body (42) crosses the tundish container horizontally, and divides the tundish container into a first region and a second region.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 27, 2023
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Jianjun Zhi, Zhengjie Fan, Xufeng Liu, Hua Gao, Zhiqiang Zhang, Guoqiang Liu
  • Patent number: 11570745
    Abstract: A positioning method includes: acquiring first geographic orientation information of a second device and first relative orientation information of the first device relative to the second device; acquiring second geographic orientation information of the first device; and determining second relative orientation information of the second device relative to the first device according to the first geographic orientation information, the second geographic orientation information, and the first relative orientation information.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: January 31, 2023
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Xufeng Liu
  • Patent number: 11273488
    Abstract: Disclosed is a flow-controllable tundish structure capable of filtering inclusions in molten steel. The tundish structure comprises a tundish (1), the tundish being divided into three separated cavities which comprise an impact zone cavity (1a) in the middle and pouring zone cavities (1b) at two sides thereof. A long nozzle (2) for pouring is vertically arranged in the center of the impact zone cavity, and molten steel flows down out of the long nozzle for pouring and is injected into the impact zone cavity; and a turbulence suppressor (3) directly facing the long nozzle for pouring is arranged on the cavity bottom under the long nozzle for pouring, and the molten steel flowing down out of the long nozzle for pouring impacts on the turbulence suppressor and is then buffered and mixed.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: March 15, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xufeng Liu, Zhengjie Fan, Jianjun Zhi, Hongguang Zheng
  • Publication number: 20220070820
    Abstract: A positioning method includes: acquiring first geographic orientation information of a second device and first relative orientation information of the first device relative to the second device; acquiring second geographic orientation information of the first device; and determining second relative orientation information of the second device relative to the first device according to the first geographic orientation information, the second geographic orientation information, and the first relative orientation information.
    Type: Application
    Filed: April 26, 2021
    Publication date: March 3, 2022
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Xufeng LIU
  • Patent number: 11179775
    Abstract: Disclosed is a flow-controllable tundish structure capable of filtering inclusions in molten steel. The tundish structure comprises a tundish (1), the tundish being divided into three separated cavities which comprise an impact zone cavity (1a) in the middle and pouring zone cavities (1b) at two sides thereof. A long nozzle (2) for pouring is vertically arranged in the center of the impact zone cavity, and molten steel flows down out of the long nozzle for pouring and is injected into the impact zone cavity; and a turbulence suppressor (3) directly facing the long nozzle for pouring is arranged on the cavity bottom under the long nozzle for pouring, and the molten steel flowing down out of the long nozzle for pouring impacts on the turbulence suppressor and is then buffered and mixed.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: November 23, 2021
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xufeng Liu, Zhengjie Fan, Jianjun Zhi, Hongguang Zheng
  • Publication number: 20210291260
    Abstract: A tundish, wherein a steel passing hole (43) is provided at a lower portion of a gas-curtain weir refractory body (42); an argon duct (46), a gas chamber (45) and a gas-permeable brick (44) are connected to form a gas-curtain generating device, and the gas-curtain generating device is installed at the lower portion of the gas-curtain weir refractory body (42); the gas-permeable brick (44) is provided in association with the position of the steel passing hole (43), and a length of the gas-permeable brick is designed larger than a width of the steel passing hole (43); and a gas-curtain weir plate (4) is provided in a tundish container, the gas-curtain weir refractory body (42) crosses the tundish container horizontally, and divides the tundish container into a first region and a second region.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 23, 2021
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Jianjun ZHI, Zhengjie FAN, Xufeng LIU, Hua GAO, Zhiqiang ZHANG, Guoqiang LIU
  • Publication number: 20210016346
    Abstract: Disclosed is a flow-controllable tundish structure capable of filtering inclusions in molten steel. The tundish structure comprises a tundish (1), the tundish being divided into three separated cavities which comprise an impact zone cavity (1a) in the middle and pouring zone cavities (1b) at two sides thereof. A long nozzle (2) for pouring is vertically arranged in the center of the impact zone cavity, and molten steel flows down out of the long nozzle for pouring and is injected into the impact zone cavity; and a turbulence suppressor (3) directly facing the long nozzle for pouring is arranged on the cavity bottom under the long nozzle for pouring, and the molten steel flowing down out of the long nozzle for pouring impacts on the turbulence suppressor and is then buffered and mixed.
    Type: Application
    Filed: February 28, 2019
    Publication date: January 21, 2021
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xufeng LIU, Zhengjie FAN, Jianjun ZHI, Hongguang ZHENG
  • Patent number: 10897129
    Abstract: Disclosed a quench protection device of a superconducting magnet system, including a superconducting coil set; the superconducting coil set comprises two superconducting coils (5) which are symmetrical arranged, and each of the two superconducting coils (5) is connected in parallel with a protection diode (4); the superconducting coils and the protection diode are connected with the power supply via a conductive wire; the superconducting coils set are connected in parallel with a quench protection unit (6), a change-over switch (3) is arranged on a circuit of the two superconducting coils, the protection diode, and the power supply, and the change-over switch (3) is connected with an external resistor via a conductive wire (2). The change-over switch of the quench protection device connects the superconducting coil and an external resistance, which realizes the quench protection of the superconducting coil.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 19, 2021
    Assignee: HEFEI CAS ION MEDICAL AND TECHNICAL DEVICES CO., LTD
    Inventors: Yuntao Song, Chunlong Zou, Kaizhong Ding, Yanfang Bi, Xufeng Liu, Rui Hu, Zhengwen Xu, Hansheng Feng, Yonghua Chen, Gen Chen, Qingxi Yang, Junjun Li
  • Publication number: 20200220345
    Abstract: Disclosed a quench protection device of a superconducting magnet system, including a superconducting coil set; the superconducting coil set comprises two superconducting coils(5) which are symmetrical arranged, and each of the two superconducting coils(5) is connected in parallel with a protection diode(4); the superconducting coils and the protection diode are connected with the power supply via a conductive wire; the superconducting coils set are connected in parallel with a quench protection unit(6), a change-over switch(3) is arranged on a circuit of the two superconducting coils, the protection diode, and the power supply, and the change-over switch(3) is connected with an external resistor via a conductive wire (2). The change-over switch of the quench protection device connects the superconducting coil and an external resistance, which realizes the quench protection of the superconducting coil.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Yuntao SONG, Chunlong ZOU, Kaizhong DING, Yanfang BI, Xufeng LIU, Rui HU, Zhengwen XU, Hansheng FENG, Yonghua CHEN, Gen CHEN, Qingxi YANG, Junjun LI
  • Patent number: 10656469
    Abstract: A rubbing alignment device, assembly and a rubbing alignment method are disclosed. The rubbing alignment device comprises a friction member including at least two friction rollers, and a friction member controller connected to the friction member for controlling respective friction rollers of the friction member to perform rubbing alignment for the substrates of the motherboard having different sizes, respectively.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 19, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wuwei An, Jaegwan Shin, Xu Wang, Hongye Zuo, Jiangzhou Du, Nan Liu, Xufeng Liu, Yan Zhao
  • Publication number: 20180088417
    Abstract: A rubbing alignment device, assembly and a rubbing alignment method are disclosed. The rubbing alignment device comprises a friction member including at least two friction rollers, and a friction member controller connected to the friction member for controlling respective friction rollers of the friction member to perform rubbing alignment for the substrates of the motherboard having different sizes, respectively.
    Type: Application
    Filed: October 13, 2016
    Publication date: March 29, 2018
    Inventors: Wuwei AN, Jaegwan SHIN, Xu WANG, Hongye ZUO, Jiangzhou DU, Nan LIU, Xufeng LIU, Yan ZHAO
  • Patent number: D1023148
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: April 16, 2024
    Inventors: Ding He, Zhi Liu, Xufeng Yang, Zhengchen Cai