公开(公告)号：US11913186B2

公开(公告)日：2024-02-27

申请号：US17617451

申请日：2020-08-29

Applicant: CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jianlong Zheng ,  Junhui Zhang ,  Junhui Peng

IPC: E02D1/00 ,  G01N3/36 ,  G01D5/14 ,  G01S19/01

CPC classification number: E02D1/00 ,  G01D5/14 ,  G01N3/36 ,  G01S19/01

Abstract: A loading module includes a test vehicle, a servo cylinder is mounted on the test vehicle, a piston rod of the servo cylinder is connected with a bearing plate acting on a subgrade surface, an annular loading plate is disposed around the bearing plate, and the loading plate is connected, through a force transmission rod, with a bearing tray on which a counterweight block is placed; a data collecting module includes a second high precision displacement sensor and a plurality of first high precision displacement sensors; a data processing module includes a computer, the computer is connected with a signal input end of the servo cylinder, an output end of the first high precision displacement sensor and an output end of the second high precision displacement sensor respectively, and performs inverse calculation for a dynamic resilient modulus value of a subgrade using a software.

公开(公告)号：US11840817B2

公开(公告)日：2023-12-12

申请号：US17846847

申请日：2022-06-22

Applicant: CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  RAILWAY NO. 5 BUREAU GROUP FIRST ENGINEERING CO. LTD.

Inventor： Zhongchu Tian ,  Ye Dai ,  Yu Tang ,  Tao Peng ,  Binyang Ding ,  Pei Cong ,  Xuejun Peng ,  Yuman Luo ,  Yali Gu ,  Chaohua Luo ,  Hui Cao ,  Yunlong Liu ,  Tao Ling

IPC: E02D19/04

CPC classification number: E02D19/04

Abstract: A method for constructing a steel sheet pile cofferdam is provided, including: step S1, determining a construction area of the steel sheet pile cofferdam; step S2, piling steel casings, and welding guide frame brackets to the steel casings, the guide frame brackets are connected with a guide frame and limiting clamp plates; step S3, piling steel sheet piles by relying on the guide frame; step S4, pouring subsealing concrete at a bottom of the steel sheet pile cofferdam; step S5, arranging purlins and internal supports within the steel sheet pile cofferdam; step S6, perform a secondary subsealing at the bottom of the steel sheet pile cofferdam; step S7, pumping water within the steel sheet pile cofferdam through a pump and pouring to form a bearing platform on the subsealing concrete; step S8, removing the steel sheet pile cofferdam after the bearing platform is formed.

公开(公告)号：US20230321740A1

公开(公告)日：2023-10-12

申请号：US17733117

申请日：2022-04-29

Applicant: Changsha University of Science and Technology

Inventor： Cong MAO ,  Ziyang CHEN ,  Yinghui REN ,  Wei LI ,  Yuanqiang LUO ,  Gang WU ,  Mingjun ZHANG ,  Kun TANG ,  Yongle HU ,  Feng SHI ,  Weidong TANG ,  Ci SONG

IPC: B23H5/10 ,  B23H5/12 ,  B23H5/06 ,  B24B7/22 ,  B23H9/00 ,  B24B7/24

CPC classification number: B23H5/06 ,  B23H5/10 ,  B23H5/12 ,  B23H9/008 ,  B24B7/228 ,  B24B7/24

Abstract: The invention provides an electrochemical discharge-assisted micro-grinding device for micro-components of brittle and hard materials. The device includes a micro-grinding tool, grinding fluid, a workpiece, an auxiliary electrode, a processing groove, and a pulsed DC power supply; the processing groove is filled with grinding fluid; the micro-grinding tool, the workpiece, and the auxiliary electrode are immersed in the grinding fluid; the micro-grinding tool is composed of a conductive grinding tool base, an electroplating layer, and insulated superabrasives. The micro-grinding tool is connected to the negative electrode of the pulsed DC power supply; the grinding fluid is composed of H2O2, Na2CO3, EDTA-Fe-Na, and deionized water; the workpiece material is brittle and hard; a large number of micro structures need to be produced on the surface of the workpiece.

公开(公告)号：US20220324652A1

公开(公告)日：2022-10-13

申请号：US17761977

申请日：2019-11-19

Applicant: Changsha University of Science and Technology

Inventor： Juan Huang ,  Lairong Yin ,  Tao Ling ,  Le Xiao ,  Jinxing Wang ,  Yuyang Peng ,  Peng XU ,  Minhui Chen

IPC: B65G41/00 ,  B65G63/04

Abstract: The invention employs a folding arm conveyor that rotates horizontally. The folding arm conveyor is mainly composed of an undercarriage mounted on the ground of a stockyard, a tower body mounted on the undercarriage, a balance arm, a conveying arm, a tower top, and other main components, wherein the balance arm, the conveying arm, and the tower top are mounted on the tower body. The conveying arm is provided with two portal frames (I) and (II) and an unloading trolley. The tower body is provided with a gyration apparatus and a hopper. The balance arm is provided with a balance trolley. The folding arm conveyor can rotate horizontally, and the conveying arm can be folded and retraced by controlling the wind rope by the windlass, so that the folding arm conveyor can be prevented from colliding with other devices or buildings during the rotation.

公开(公告)号：US11320338B2

公开(公告)日：2022-05-03

申请号：US16904533

申请日：2020-06-17

Applicant: Changsha University of Science and Technology

Inventor： Minhui Chen ,  Lairong Yin ,  Hongwei Hu ,  Tianzan He ,  Cong Mao ,  Jinhang Wang ,  Dang Zhou ,  Anwei Jiang

IPC: G01M5/00 ,  B60P3/00 ,  B62D33/02 ,  E01D19/10

Abstract: A bridge detecting vehicle with two foldable arms, including: a vehicle body, slewing mechanisms, horizontal and vertical arms and telescopic arms. One end of the two horizontal arms is respectively arranged on the slewing mechanisms, and the other end of the two horizontal arms is respectively connected to the two horizontal arms. A crossed arm is provided between the two horizontal arms. The two vertical arms are respectively connected to the two horizontal arms via ball joints. A detecting device is respectively provided at rear ends of the two telescopic arms.

公开(公告)号：US20210179805A1

公开(公告)日：2021-06-17

申请号：US17061224

申请日：2020-10-01

Applicant: Changsha University of Science and Technology

Inventor： Chunguang LONG ,  Ying PENG ,  Xin PENG

IPC: C08K3/08 ,  C08K5/134 ,  C08K3/04 ,  C08L61/16

Abstract: The invention provides a polyetheretherketone (PEEK) composite and a method of preparing same. The PEEK composite is prepared from 55-90 parts by mass of PEEK, 5-30 parts by mass zinc aluminum (ZA) alloy, 5-15 parts by mass graphite, 0.3-1 parts by mass graphene oxide (GO) and a processing additive. The PEEK composite is prepared by the following steps: putting the ZA alloy into an aqueous solution of a quaternary ammonium salt surfactant, ultrasonically dispersing, filtering, washing and drying; dissolving the GO in deionized water, dispersing the ZA alloy in deionized water, and adding a GO solution dropwise to a ZA alloy dispersion to obtain a GO/ZA alloy complex; mixing the PEEK, the GO/ZA alloy complex, the graphite and the processing additive, and drying at 100-120° C. for 3-4 h; and mixing in a mixer, and carrying out compression molding at 380-400° C.

公开(公告)号：US20200083702A1

公开(公告)日：2020-03-12

申请号：US16613409

申请日：2018-07-04

Applicant: CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xiangjun ZENG

IPC: H02H9/00

Abstract: The proposed invention discloses a safe processing method for active voltage reduction of a ground fault phase of a non-effective ground system, for use in safe processing of a ground fault of a neutral point non-effective ground generator or distribution network. Non-effective ground system side windings of a transformer are equipped with a plurality of shunting taps. When a single-phase ground fault occurs, the shunting tap of the fault phase winding is selected to be short-circuited to ground directly or through an impedance to reduce the fault phase voltage to ensure that the fault point voltage is less than the continuous burning voltage of a ground arc to meet a long-term non-stop safe operation requirements. The proposed method can eliminate the instantaneous single-phase ground fault, suppress the permanent single-phase ground fault current, and limit the rising amplitude of non-fault phase voltage and the risk of non-fault phase insulation breakdown.

公开(公告)号：US12135310B2

公开(公告)日：2024-11-05

申请号：US17413629

申请日：2019-08-16

Applicant: Changsha University of Science and Technology ,  Central South University

Inventor： Bo Liang ,  Zhengchun Liu ,  Jianlong Zheng

IPC: G01N27/49 ,  G01N33/42 ,  G16C60/00

Abstract: Disclosed is a design reference value quantification method for a modifier dosage of modified asphalt. A curve of unsaturation degree of the modified asphalt as a function of the modifier dosage is plotted, in which the unsaturation degree of a series of modified asphalts is determined by potentiometric titration; further, an inflection point of the unsaturation degree of the modified asphalt as a function of the modifier dosage in the asphalt is obtained by data fitting and analysis, and a reference value of the dosage of the modifier added in the process design of the modified asphalt is established.

公开(公告)号：US20230204481A1

公开(公告)日：2023-06-29

申请号：US18172181

申请日：2023-02-21

Applicant: Changsha University of Science and Technology

Inventor： Wei LI ,  Zhuoyin PENG ,  Lei LI ,  Cong LI ,  Jian CHEN ,  Fei CHEN ,  Yong YAN ,  Dapeng JIANG ,  Guowei BAI ,  Yaopeng CHANG ,  Huang HUANG ,  Weiying HUANG ,  Libo ZHOU ,  Jianlin CHEN ,  Yanjie REN ,  Jianjun HE

IPC: G01N3/08 ,  G01N3/06 ,  G01N1/44

CPC classification number: G01N3/08 ,  G01N3/06 ,  G01N1/44 ,  G01N2203/0017 ,  G01N2203/04

Abstract: Disclosed is a device for testing corrosion fatigue resistance on the basis of acoustic emission. The device includes: a main machine including a supporting frame and a tensile mechanism arranged on the supporting frame; a clamping mechanism including a first clamp and a second clamp that is arranged opposite the first clamp, where the first clamp and the second clamp are both connected to the tensile mechanism, the tensile mechanism is used for driving the first clamp and the second clamp to move close to or away from each other, the first clamp is provided with an accommodation cavity for accommodating a corrosive substance, the accommodation cavity is provided with an opening that is provided on the first clamp and close to one end of the second clamp, and the first clamp can place a test specimen in the accommodation cavity when fixing the test specimen.

公开(公告)号：US20230101196A1

公开(公告)日：2023-03-30

申请号：US16969588

申请日：2019-12-31

Applicant: CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Zhong CAO ,  Ningtao ZHOU ,  Li ZHOU ,  Qin ZHU ,  Jinglin HE ,  Zhongliang XIAO ,  Yumin HE ,  Zemeng FENG ,  Yulong YIN

IPC: G01N27/327 ,  G01N27/48 ,  C07K1/107

Abstract: A method and a sensor for detecting L-arginine are provided. The method includes synthesizing ferrocene-functionalized hexadecapeptide dithiocyclopentane (FC-P16 Peptide), preparing a polypeptide composite membrane-modified electrode (FC-P16 Peptide/AuE), detecting L-Arg and other steps. The results show that the polypeptide composite membrane-modified electrode (FC-P16 Peptide/AuE) exhibits excellent electrochemical response properties to L-Arg. In 10 mmol/L phosphate-buffered saline (PBS, pH=7.4), the DPV response peak current of the polypeptide composite membrane-modified electrode has an excellent linear relationship with the L-Arg concentration of 1.0×10−13 mol/L to 1.0×10−7 mol/L, with a detection limit of 1.0×10−13 mol/L. With prominent reproducibility, repeatability and selectivity, the modified electrode has potential application in life science and nutritional health.