公开(公告)号：US20230110950A1

公开(公告)日：2023-04-13

申请号：US17806914

申请日：2022-06-14

Applicant: University of Science and Technology Beijing

Inventor： Haibin Zuo ,  Yajie Wang

IPC: C10L5/48 ,  C04B33/04 ,  C04B33/135 ,  C04B33/32 ,  C04B35/626 ,  C10L5/36 ,  C10L5/08

Abstract: Disclosed is a method for recycling a coal liquefaction residue. The method includes S1, drying a coal liquefaction residue and pulverizing to obtain a pulverized coal liquefaction residue; S2, subjecting the pulverized coal liquefaction residue to a solvothermal extraction in an autoclave to obtain an extract liquid and a residue; S3, distilling the extract liquid and recovering an organic solvent to obtain a solid extract.

公开(公告)号：US11613351B2

公开(公告)日：2023-03-28

申请号：US17743486

申请日：2022-05-13

Applicant: University of Science and Technology Beijing

Inventor： Wei He ,  Haifeng Huang ,  Jiubin Wang ,  Xinyue Tang ,  Xiuyu He ,  Qiang Fu ,  Yao Zou ,  Hui Zhang ,  Changyin Sun ,  Yaonan Wang

IPC: B64C33/02 ,  B64U10/40 ,  B64U50/19 ,  F16H19/00

Abstract: A pull cord type turning mechanism for a butterfly-inspired flapping-wing aerial robot includes a motor, a cord reel, a cord reel gear, a potentiometer gear, a potentiometer, a control module, and a power supply. The control module is connected to the motor and the potentiometer. A rotary shaft of the motor is connected to the cord reel, the cord reel is coaxially connected to the cord reel gear, the cord reel gear is meshed with the potentiometer gear, and the potentiometer gear is connected to a rotary shaft of the potentiometer. The cord reel gear is provided with two cord grooves and two pull cords. One ends of the two pull cords are fixed in the two cord grooves, respectively, and the other ends thereof are fixed at the tips of front wings of two sides of the butterfly-inspired flapping-wing aerial robot, respectively.

公开(公告)号：US11592842B1

公开(公告)日：2023-02-28

申请号：US17730232

申请日：2022-04-27

Applicant: University of Science and Technology Beijing

Inventor： Wei He ,  Xiaoyang Wu ,  Xinyue Tang ,  Qiang Fu ,  Yongbin Sun ,  Yao Zou ,  Xiuyu He ,  Hui Zhang ,  Changyin Sun ,  Yaonan Wang

IPC: G05D1/10 ,  B64C33/00

Abstract: A flapping-wing aerial robot formation control method includes: determining a trailing vortex generation mechanism, an energy saving principle and a trailing vortex attenuation mechanism of the formation flight of a group of wild geese in accordance with the pattern of the formation flight of the group of wild geese; determining the formation flight of a group of flapping-wing aerial robots and a formation switching solution in accordance with the trailing vortex generation mechanism, energy saving principle and trailing vortex attenuation mechanism of the formation flight of the group of wild geese in conjunction with the flapping characteristic of a flapping-wing aerial robot from the perspective of energy consumption equalization and energy saving; and carrying out formation keeping control and formation reconfiguration control in accordance with the formation flight of the group of flapping-wing aerial robots and the formation switching solution by controlling positions of the group of flapping-wing aerial robots.

公开(公告)号：US11579038B2

公开(公告)日：2023-02-14

申请号：US17098475

申请日：2020-11-16

Applicant: University of Science and Technology Beijing

Inventor： Yi Zhou

IPC: G01M5/00 ,  G06F30/20 ,  G06F111/10

Abstract: A method for calculating a temperature-dependent mid-span vertical displacement of a girder bridge includes: setting a joint rotation of a main girder at each support as an unknown quantity, and establishing an equation according to a bending moment equilibrium condition at the joint; then introducing a sequence to establish a quantitative relationship between each unknown quantity; substituting the relationship into the equation, to obtain an analytical formula for a rotation at each joint; establishing an analytical formula for a bending moment at each joint through a principle of superposition; and finally, establishing an analytical formula for a mid-span vertical displacement of each span girder through a principle of virtual work. This method provides an analytical formula with exact solutions for prismatic girder bridges which have equal side spans yet have any number of spans.

公开(公告)号：US20220417956A1

公开(公告)日：2022-12-29

申请号：US17537542

申请日：2021-11-30

Applicant: University of Science and Technology Beijing

Inventor： Haijun ZHANG ,  Wanqing GUAN ,  Dong WANG ,  Tongwei LU ,  Xiangming WEN ,  Keping LONG

IPC: H04W72/12 ,  H04L47/62 ,  G06N20/00

Abstract: An Artificial Intelligence (AI) engine-supporting downlink radio resource scheduling method and apparatus are provided. The AI engine-supporting downlink radio resource scheduling method includes: constructing an AI engine, establishing a Socket connection between an AI engine and an Open Air Interface (OAI) system, and configuring the AI engine into an OAI running environment to utilize the AI engine to replace a Round-Robin scheduling algorithm and a fair Round-Robin scheduling algorithm adopted by a Long Term Evolution (LTE) at a Media Access Control (MAC) layer in the OAI system for resource scheduling to take over a downlink radio resource scheduling process; sending scheduling information to the AI engine through Socket during the downlink radio resource scheduling process of the OAI system; and utilizing the AI engine to carry out resource allocation according to the scheduling information, and returning a resource allocation result to the OAI system.

公开(公告)号：US11519054B2

公开(公告)日：2022-12-06

申请号：US16576765

申请日：2019-09-20

Applicant: University of Science and Technology Beijing

Inventor： Chengyan Wang

IPC: C22B3/10 ,  C22B3/22 ,  C22B3/08 ,  C22B3/00 ,  C22B7/00

Abstract: A method for preparing lead directly from a lead-containing material by a solid phase reaction, includes: step 1, adding the lead-containing material to be processed to the grinder, and adding a metal substance and water to the grinder, wherein an activity of the metal substance is larger than that of lead; the solid phase reaction between the lead-containing material and the metal substance is caused directly by the grinder through a mechanical force to obtain a reaction product; step 2, washing and filtering the reaction product to obtain the lead and a metal salt solution corresponding to the metal substance; step 3, performing a melt casting on the lead to obtain a crude lead, crystallizing the metal salt solution to obtain a metal salt corresponding to the metal substance.

公开(公告)号：US11502344B2

公开(公告)日：2022-11-15

申请号：US16499374

申请日：2017-10-17

Applicant: University of Science and Technology Beijing

Inventor： Chengyan Wang ,  Peng Xing ,  Yongqiang Chen

IPC: H01M10/54 ,  C22B7/00 ,  C22B3/00

Abstract: A method for recycling lead from spent lead-acid battery paste, relating to the technical field of hydrometallurgy. In the method, firstly a reducing agent, and a lead paste are added into a zinc chloride solution for leaching in a stirring mill to cause lead in the lead paste to enter the solution, a lead cementation is performed by using zinc in the leached solution, after the lead cementation, the electrolytic zinc is produced by controlling an electrodeposition on the zinc chloride solution for a short time, the reducing agent is zinc, lead or hydrogen peroxide, a part of the electrolytic zinc is returned as the reducing agent for leaching, the step of returning the electrolytic zinc as the reducing agent can be omitted when the lead or the hydrogen peroxide is used as the reducing agent.

公开(公告)号：US20220235427A1

公开(公告)日：2022-07-28

申请号：US17476501

申请日：2021-09-16

Applicant: University of Science and Technology Beijing ,  Soochow University

Inventor： Rong ZHU ,  Shaoyan HU ,  Kai DONG ,  Rongfang SU ,  Weifeng LI

IPC: C21C5/46 ,  C21C5/48 ,  F27D3/16 ,  C21C5/30

Abstract: A long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick belongs to the field of steelmaking technologies using powder-bottom-injecting converters. According to equipment characteristics, process characteristics, and erosion characteristics of the powder-bottom-injecting converter, the design, arrangement, installation, use, maintenance, and replacement of the bottom purging/powder injection bricks are systematically optimized and improved, a technology of automatically detecting the erosion height of bottom purging bricks is adopted, and hot replacement of bottom purging/powder injection bricks and hot replacement of the converter furnace bottom are used collaboratively, which not only can prolong the service life of a single bottom purging/powder injection brick, but also can greatly prolong the overall life of the powder-bottom-injecting converter from 1000-3000 heats in the prior art to 6000-10000 heats. Hence, the life of the powder-bottom-injecting converter is as long as that of a conventional converter.

公开(公告)号：US20220118563A1

公开(公告)日：2022-04-21

申请号：US17268638

申请日：2020-09-29

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Zhiyong LIU ,  Baozhuang SUN ,  Xiaogang LI ,  Yedong HE

IPC: B23P6/00 ,  G01N17/00 ,  B23K15/00

Abstract: A repair method for self-detecting and self-healing of corrosion defects in metals can achieve self-detecting and self-healing repair of an initial corrosion defect and be used to repair a micron-level corrosion defect. Furthermore, the self-detecting and self-healing repair method can be used to effectively repair an initial corrosion defect in a large-sized high-precision structural component, thus effectively improving the service safety of the high-precision metal structural component and prolonging the service life of the same.

公开(公告)号：US11267744B2

公开(公告)日：2022-03-08

申请号：US16462539

申请日：2018-05-30

Applicant: University of Science and Technology Beijing

Inventor： Aixiang Wu ,  Shaoyong Wang ,  Lianfu Zhang ,  Zhuen Ruan ,  Shenghua Yin ,  Hongjiang Wang ,  Yiming Wang

IPC: C02F11/12 ,  C02F11/121 ,  B09B3/00 ,  B09B1/00

Abstract: A gold mine cyanide tailing disposal method is provided. The disposal method performs a harmless decyanation treatment on a cyanide tailing slurry obtained from a mineral processing plant, and then performs a resource treatment where a cyanide tailing slurry is subjected to a thickening to obtain a higher concentration. When a backfill is needed, a paste is produced by adding a cementing material after a homogenized stirring of a two-stage horizontal agitator pumped to an underground mining site for filling by a plunger pump. The cementing material is to solidify an underflow and prevent cyanide from being filtered out. When a backfill is not needed, the paste is directly delivered to an open storage area for storing by the plunger pump.