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    Gyroscope-based system and method for assisting in tracking heat source on mechanical arm
    1.
    发明授权
    Gyroscope-based system and method for assisting in tracking heat source on mechanical arm 有权

    公开(公告)号：US10991113B2

    公开(公告)日：2021-04-27

    申请号：US16624487

    申请日：2019-01-02

    Applicant: CENTRAL SOUTH UNIVERSITY ,  THE SECOND XIANGYA HOSPITAL OF CENTRAL SOUTH UNIVERSITY

    Inventor： Li Xiong ,  Siyuan Tang ,  Jingjing Jiao ,  Jiangjie Zhang

    IPC: G06T7/579 ,  B25J9/16

    Abstract: A gyroscope-based system and method is disclosed. Image information data is collected; a mechanical arm working environment image is modeled; a heat source supply apparatus and a gyroscope are provided at the mechanical arm proximal end; the position of the proximal end is accurately measured by accurately tracking the heat source at the proximal end; the relative position of the mechanical arm distal end is accurately calculated by using high-precision angle information measured by the high-precision gyroscope in combination with a number-theoretic formula. The disclosure provides separately determining the position of the distal end, or for assisting other algorithms or apparatuses that track the position of the mechanical arm distal end in error correction and calibration of the position of the mechanical arm distal end. The position of the mechanical arm distal end can be continuously and dynamically tracked in real time, and virtualized in the corresponding image system.

    Method for recycling copper-containing wastewater from micro-etching
    2.
    发明授权
    Method for recycling copper-containing wastewater from micro-etching 有权

    公开(公告)号：US12221366B1

    公开(公告)日：2025-02-11

    申请号：US18804147

    申请日：2024-08-14

    Applicant: Central South University

    Inventor： Chenyang Zhang ,  Mingjun Han ,  Wei Sun ,  Jie Li ,  Wenjihao Hu ,  Heng Yu ,  Rong Wang ,  Siyuan Liu ,  Xiangsong Meng ,  Pan Chen

    IPC: C02F1/52 ,  C01G49/12 ,  C02F1/66 ,  C02F101/20 ,  C02F103/34

    Abstract: A method for recycling a copper-containing wastewater from a micro-etching is provided, including: modifying a FeS material with a monomer including both carboxyl and sulfhydryl, a crosslinking agent, and a stabilizing and dispersing agent to obtain a FeS-based pH-responsive material CMC-FeS@HS #SiO2 #COOH, adding the FeS-based pH-responsive material to weakly-acidic copper-containing wastewater from the micro-etching to allow a reaction, and conducting processes such as sulfide precipitation, exchange, adsorption complexation, and flocculation precipitation to finally obtain a precipitate with CuS as a main component. This method makes full use of the pH responsiveness and abundant surface active sites of the FeS-based pH-responsive material, and can control a recovery rate of copper ions in the wastewater at 99.8% or more merely by adjusting a pH value of the copper-containing wastewater from the micro-etching.

    LOW-ALLOYED MAGNESIUM ALLOY WITH HIGH DUCTILITY AND HIGH DAMPING CAPACITIES AT ROOM TEMPERATURE AND PREPARATION METHOD THEREOF
    3.
    发明申请
    LOW-ALLOYED MAGNESIUM ALLOY WITH HIGH DUCTILITY AND HIGH DAMPING CAPACITIES AT ROOM TEMPERATURE AND PREPARATION METHOD THEREOF 有权

    公开(公告)号：US20250034681A1

    公开(公告)日：2025-01-30

    申请号：US18740588

    申请日：2024-06-12

    Applicant: Central South University

    Inventor： Chuming LIU ,  Shunong JIANG ,  Yajie MA ,  Yonghao GAO ,  Yingchun WAN

    IPC: C22C23/06 ,  C21D8/02

    Abstract: A low-alloyed magnesium (Mg) alloy with high ductility and high damping capacities at room temperature and a preparation method thereof are provided. The low-alloyed Mg alloy with high ductility and high damping capacities includes the following elements in percentage by mass: 0.5-1.5% of Gadolinium (Gd), 0.5-0.9% of Zinc (Zn), 0.3-0.6% of Zirconium (Zr), and the balance of Mg (Mg). By adding low-content Gd, Zn and Zr elements to a Mg matrix, the low-alloyed Mg alloy not only has effects of solid solution strengthening, precipitation strengthening and fine-grain strengthening, but also, under the interaction effect of a plurality of elements, promotes the non-basal dislocation slipping of Mg alloy, and stimulates the dislocation damping mechanism, thereby effectively improving the plasticity and damping properties of Mg alloy. The low-alloyed Mg alloy with high ductility and high damping capacities at room temperature has excellent plasticity and damping properties at room temperature.

    SURGICAL MARGIN PATH GENERATING METHOD AND SYSTEM FOR TUMOR SURGERY AND STORAGE MEDIUM
    4.
    发明申请
    SURGICAL MARGIN PATH GENERATING METHOD AND SYSTEM FOR TUMOR SURGERY AND STORAGE MEDIUM 有权

    公开(公告)号：US20250017663A1

    公开(公告)日：2025-01-16

    申请号：US18901995

    申请日：2024-09-30

    Applicant: XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY

    Inventor： Shuang ZHAO ,  Kai HUANG ,  Xiang CHEN ,  Zixi JIANG

    IPC: A61B34/10 ,  G16H10/60

    Abstract: The present invention relates to the technical field of computer-aided preoperative analysis, and discloses a surgical margin path generating method and system for tumor surgery and a storage medium. The method comprises: acquiring clinical pictures of a tumor, dermatoscopy pictures, and medical history information of patients; segmenting and extracting tumor boundaries from the dermatoscopy pictures by using a preset deep learning network model to obtain skin tumor boundaries under a dermoscope; registering the skin tumor boundaries with the clinical pictures to obtain target tumor boundaries; generating an initial surgical margin path according to the medical history information, the target tumor boundaries, and a preset path generating model; in the case of a benign tumor, smoothing the initial surgical margin path to generate a surgical margin path of a fusiform incision.

    ARSENIC IRON ALLOY, PREPARATION METHOD AND RESOURCE TREATMENT METHOD THEREOF
    5.
    发明申请
    ARSENIC IRON ALLOY, PREPARATION METHOD AND RESOURCE TREATMENT METHOD THEREOF 有权

    公开(公告)号：US20240417829A1

    公开(公告)日：2024-12-19

    申请号：US18819299

    申请日：2024-08-29

    Applicant: CENTRAL SOUTH UNIVERSITY

    Inventor： Xiaobo MIN ,  Fei CHAI ,  Feiping ZHAO ,  Liyuan CHAI ,  Yanjie LIANG ,  Cong PENG ,  Yiwei ZHOU

    IPC: C22C33/02 ,  C22C38/00

    Abstract: The present disclosure provides a preparation method of arsenic iron alloy, which includes the following steps: ball milling arsenic powder and iron powder under the protection of inert atmosphere according to a molar ratio of 0.1˜0.35:1 or 0.35˜2:1 to obtain pretreated material; vacuum hot pressed sintering the pretreated material to obtain arsenic iron alloy. The vacuum hot press sintering process includes: placing the pretreated material in a vacuum environment; and sintering the pretreated material; in the sintering process, a pressure of 30˜50 MPa is applied to the pretreated material. The sintering process includes: heating the pretreated material from room temperature to 400˜500° C., and holding for 0.5˜1 h; and heating the pretreated material from 400˜500° C. to 600˜800° C., and holding for 0.5˜1 h. The present disclosure can obtain arsenic iron alloy with high performance and low leaching toxicity.

    Reusable collision energy absorption device for rail vehicle
    8.
    发明授权
    Reusable collision energy absorption device for rail vehicle 有权

    公开(公告)号：US12012130B2

    公开(公告)日：2024-06-18

    申请号：US17044826

    申请日：2018-10-30

    Applicant: CENTRAL SOUTH UNIVERSITY

    Inventor： Guangjun Gao ,  Weiyuan Guan ,  Shuai Wang

    IPC: B61G11/12 ,  B61D15/06 ,  B61F19/04

    CPC classification number: B61G11/12 ,  B61D15/06 ,  B61F19/04 ,  B60Y2200/30

    Abstract: A reusable collision energy absorption device for a rail vehicle includes an impacted rod, a damping structure including a damping plug, a guide tube and a damping elastic element, a return structure including a return piston and an elastic return element, an outer tube having a tubular structure, and an interior partitioned into a front cavity and a rear cavity through a partition plate provided with a damping hole in the form of a through hole. A portion of the damping plug is in the damping hole when the damping plug is in an initial position, and the damping plug can move in a front-rear direction when the device is impacted. A gap between a radial thickest portion of the damping plug and the damping hole allows the fluid to circulate between the front cavity and the rear cavity.

    METHOD FOR PREPARING LITHIUM METAL BY MOLTEN SALT ELECTROLYSIS
    10.
    发明公开
    METHOD FOR PREPARING LITHIUM METAL BY MOLTEN SALT ELECTROLYSIS 审中-公开

    公开(公告)号：US20240183050A1

    公开(公告)日：2024-06-06

    申请号：US18287654

    申请日：2022-04-25

    Applicant: CENTRAL SOUTH UNIVERSITY

    Inventor： Zhongwei ZHAO ,  Fenglong SUN ,  Yuntao LEI

    IPC: C25C3/02 ,  C25C7/02

    CPC classification number: C25C3/02 ,  C25C7/025

    Abstract: A method for preparing lithium metal by molten salt electrolysis is provided. The method is carried out by using an electrolytic cell. The electrolytic cell is divided into an anode chamber and a cathode chamber. The anode chamber is filled with an anode molten salt electrolyte and inserted with an anode, and the cathode chamber is filled with a cathode molten salt electrolyte and inserted with a cathode. The bottom of the electrolytic cell is further filled with a liquid alloy. After the electrolytic cell is powered on, raw materials including lithium chloride, lithium carbonate, lithium hydroxide, lithium oxide, etc. are added into the anode chamber so as to obtain a lithium metal product in the cathode chamber. The method of the present invention has advantages such as continuous production, low requirements for a lithium chloride raw material, and high purity of a lithium metal product.

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