公开(公告)号：US20240160796A1

公开(公告)日：2024-05-16

申请号：US18236408

申请日：2023-08-22

Applicant: GUANGDONG ARTIFICIAL INTELLIGENCE AND DIGITAL ECONOMY LABORATORY(GUANGZHOU) ,  SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Taicong Chen ,  Qin Guo

IPC: G06F30/13 ,  G06F17/13 ,  G06F30/20

CPC classification number: G06F30/13 ,  G06F17/13 ,  G06F30/20

Abstract: A method and system for analyzing an anti-earthquake design of a fractional-order damping and vibration-reducing structure, a device, and a medium relate to the field of designs for anti-earthquake structures. The method includes: establishing a motion equation of a cascaded structure that contains a fractional-order damping under the dynamic load; calculating a fractional-order derivative based on an Adams-Moulton algorithm, and constructing an equivalent linear time-invariant dynamic system based on the motion equation at each discrete moment; and establishing an explicit solution formula of the equivalent linear time-invariant dynamic system at each moment with reference to Newmark-β numerical integration, and solving a dynamic response. The method has good calculation precision, calculation stability, and calculation efficiency, is easy to be embedded into general dynamic analysis software, and is convenient for engineering applications.

公开(公告)号：US11960801B2

公开(公告)日：2024-04-16

申请号：US17272320

申请日：2019-07-19

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Qiang Rong

IPC: G06F30/15 ,  G01M17/04 ,  G06F111/10

CPC classification number: G06F30/15 ,  G01M17/04 ,  G06F2111/10

Abstract: Disclosed is a method for calculating a pressure loss of a parallel R-type automobile vibration damper. The automobile vibration damper includes a frame, a spring, an axle, a hydraulic cylinder, an upper oil tank, a piston, a lower oil tank, and a resistance adjustment section. The resistance adjustment section is composed of 4 capillaries connected in parallel and solenoid valves. The four capillaries are all coiled into an M shape. The 4 capillaries are R8, R4, R2, and R1 and are connected in series with solenoid valves VR8, VR4, VR2, VR1, respectively. Due to the viscous effect of oily liquid in the cylinder, when the oily liquid flows through the resistance adjustment section, damping can be adjusted by adjusting the configurations SRn of the solenoid valves VR8, VR4, VR2, and VR1.

公开(公告)号：US11952278B2

公开(公告)日：2024-04-09

申请号：US17261693

申请日：2019-10-23

Applicant: South China University of Technology

Inventor： Xueqing Qiu ,  Dongjie Yang ,  Huan Wang ,  Zhiqiang Fang ,  Hongming Lou ,  Weifeng Liu ,  Zhixian Li ,  Jinhao Huang ,  Xinping Ouyang

IPC: C01B32/15 ,  H01G11/24 ,  H01G11/36

CPC classification number: C01B32/15 ,  H01G11/24 ,  H01G11/36 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2006/40

Abstract: The present invention belongs to the technical field of biomass carbon materials, and relates to a lignin porous carbon nanosheet, a preparation method therefor, and an application thereof in supercapacitor electrode materials. The method of the present invention performs layer-by-layer self-assembly of sulfonated lignin and oxalate in a selective solvent to prepare a layer-by-layer self-assembled lignin/oxalate composite, which is then carbonized and pickled to obtain the lignin porous carbon nanosheets. The lignin porous carbon nanosheets prepared by the above method of the present invention have a specific surface area of 200-1500 m2/g, a micropore specific surface area of 100-500 m2/g, a mesoporous specific surface area of 100-1000 m2/g, a pore diameter of 0.5-30 nm, and a pore volume of 0.5-1.5 cm3/g; they can be applied to supercapacitor electrode materials, showing higher specific capacitance and excellent rate performance (with a specific capacitance retention rate of 76.6%), having good potential application value.

公开(公告)号：US20240088869A1

公开(公告)日：2024-03-14

申请号：US18274236

申请日：2021-10-31

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Guoqiang LI ,  Tielin ZHANG ,  Hongbin LIU ,  Xinyan YI ,  Lishuai ZHAO ,  Peidong OUYANG

IPC: H03H9/17 ,  H03H3/02 ,  H03H9/02

CPC classification number: H03H9/173 ,  H03H3/02 ,  H03H9/02031 ,  H03H9/178 ,  H03H2003/021 ,  H03H2009/02204

Abstract: A frequency-tunable film bulk acoustic resonator and a preparation method therefor are provided. The resonator includes a substrate, an air gap, a sandwiched structure formed by electrodes and piezoelectric layers, and an electrode lead-out layer, wherein the substrate is connected to the sandwiched structure formed by the electrodes and the piezoelectric layers, and a connection face of the substrate and the sandwiched structure formed by the electrodes and the piezoelectric layers is recessed towards inside of the substrate to form the air gap; and the electrode lead-out layer is connected to the sandwiched structure formed by the electrodes and the piezoelectric layers. The sandwiched structure formed by the electrodes and the piezoelectric layers includes a bottom electrode, piezoelectric layers, intermediate electrodes, and a top electrode, wherein the electrodes and the piezoelectric layers are alternately arranged to form the sandwiched structure.

公开(公告)号：US11929488B2

公开(公告)日：2024-03-12

申请号：US17286614

申请日：2019-05-28

Applicant: South China University of Technology ,  Sihui Dabowen Industrial Co., Ltd. ,  Guangdong Research Institute of Rare-Metal

Inventor： Liuzhang Ouyang ,  Cheng Tan ,  Min Zhu ,  De Min ,  Hui Wang ,  Tongzhao Luo ,  Fangming Xiao ,  Renheng Tang

IPC: H01M4/134 ,  C22C1/02 ,  C22C19/03 ,  H01M4/02

CPC classification number: H01M4/134 ,  C22C1/023 ,  C22C19/03 ,  C22C2202/04 ,  H01M2004/027

Abstract: The present invention relates to a hydrogen storage alloy, an electrode for a Ni-MH battery, a secondary battery, and a method for preparing the hydrogen storage alloy. The chemical composition of the hydrogen storage alloy is expressed by the general formula La(3.0˜3.2)xCexZrySm(1-(4.11˜4.2)x-y)NizCouMnvAlw, where x, y, z, u, v, w are molar ratios, and 0.14≤x≤0.17, 0.02≤y≤0.03, 4.60≤z+u+v+w≤5.33, 0.10≤u≤0.20, 0.25≤v≤0.30, and 0.30≤w≤0.40. The atomic ratio of the metal lanthanum (La) to the metal cerium (Ce) is fixed at 3.0 to 3.2, which satisfies the requirements of the overcharge performance of the electrode material. A side elements are largely substituted by samarium (Sm) element, that is, the atomic ratio of Sm on the A side is 25.6% to 42%, so as to solve the problem of shortened cycle life caused by the small amount of cobalt (Co) atoms. The equilibrium pressure is adjusted by the change in the ratio of Sm to La and Ce to satisfy the requirements of the charge and discharge dynamic performance of the electrode material. The nucleation rate of the solidification process is improved by the addition of zirconium (Zr) to the A side at an atomic ratio of 2% to 3%. The Ni-MH battery negative-electrode material obtained from the hydrogen storage alloy has high overcharge resistance, and good high-rate discharge performance and cycle stability.

公开(公告)号：US11929448B2

公开(公告)日：2024-03-12

申请号：US17254308

申请日：2018-10-22

Applicant: South China University of Technology

Inventor： Xianmin Zhang ,  Linlin Cai ,  Shenghui Bai

IPC: H02S50/15 ,  H01L21/66 ,  H01L31/18

CPC classification number: H01L31/1864 ,  H01L22/30 ,  H02S50/15

Abstract: Described herein is an electric injection annealing test device for crystalline silicon photovoltaic solar cells, the test device comprises a dark box, a sample test bench, a temperature control device, a power supply device and an image acquisition device. The sample test bench, the temperature control device, the power supply device and the image acquisition device are located in the dark box; the sample test bench is used to place a solar cell sheet; the temperature control device is used to control a temperature of the solar cell sheet; the power supply device provides a current to the solar cell sheet, the image acquisition device is used to acquire electroluminescence images of the solar cell sheet under different temperatures and current conditions.

公开(公告)号：US20240027177A1

公开(公告)日：2024-01-25

申请号：US17422693

申请日：2019-09-23

Applicant: South China University of Technology

Inventor： Linfeng LAN ,  Caihao DENG ,  Junbiao PENG

IPC: G01B7/16 ,  G01B1/00

CPC classification number: G01B7/18 ,  G01B1/00

Abstract: A stretchable strain sensor based on vertical graphene having a stretch ratio of more than 50% and is capable of recognizing timbre with frequency greater than f hertz, f being 100, 800 or 2500, and having a sensitivity factor greater than 100 at 50% stretch, wherein the vertical graphene comprises a bottom plane layer and a vertical layer and contains high-density reticular cracks, wherein the directions of the cracks can be transverse, vertical and oblique directions, wherein the reticular cracks divide the vertical graphene into a plurality of small blocks, and adjacent small blocks are electrically connected through the vertical layer in stretched state, the cracks widen, but still can be bridged by the vertical layer, the two sides of the cracks still remain electrically connected, the sensor remains effective, wherein average diameter range of the plane of each small block is between 5 and 20 microns.

公开(公告)号：US20240019746A1

公开(公告)日：2024-01-18

申请号：US18034375

申请日：2021-10-27

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Satoshi AYA ,  Mingjun HUANG ,  Hiroya NISHIKAWA ,  Jinxing LI ,  Junichi KOGO ,  Junchen ZHOU ,  Xiuhu ZHAO

IPC: G02F1/137 ,  G02F1/1337 ,  C09K19/20 ,  C09K19/34 ,  C09K19/58

CPC classification number: G02F1/13718 ,  G02F1/133723 ,  G02F1/133788 ,  G02F1/133784 ,  C09K19/2007 ,  C09K19/3402 ,  C09K19/586 ,  C09K2019/2078 ,  C09K2019/3422

Abstract: The present invention discloses an ultra-high-polarity chiral liquid crystal material, a liquid crystal laser and a preparation method therefor. The ultra-high-polarity chiral liquid crystal material has, in a certain temperature range, a high dielectric constant of ε˜104 and a characteristic of extremely-strong second harmonic response 3 to 10 times as much as that of a quartz crystal, and a pitch of the ultra-high-polarity chiral liquid crystal material is adjusted within 0.1 to 1 micrometer according to a doped concentration of the chiral molecule.

公开(公告)号：US20230405674A1

公开(公告)日：2023-12-21

申请号：US18035603

申请日：2020-12-31

Applicant: South China University of Technology

Inventor： Min ZHU ,  Zhongchen LU ,  Meiqin ZENG ,  Liuzhang OUYANG ,  Renzong HU ,  Hui WANG

IPC: B22F9/04 ,  B02C17/10 ,  B02C17/14 ,  B02C21/00 ,  B22F9/14 ,  C01B32/21 ,  C01B32/949 ,  C01G41/02

CPC classification number: B22F9/04 ,  B02C17/10 ,  B02C17/14 ,  B02C21/00 ,  B22F9/14 ,  C01B32/21 ,  C01B32/949 ,  C01G41/02 ,  B22F2009/043 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/62 ,  C01P2004/80

Abstract: Disclosed are a continuous low-temperature plasma powder treatment and ball-milling production device, and a method thereof. The device includes a powder circulating and conveying pipeline system (1), a ball mill (2), a low-temperature plasma discharge pipeline (3), a vacuum discharge system (4) and a controllable atmosphere system (5), where the powder circulating and conveying pipeline system (1) is sequentially connected to the ball mill (2) and the low-temperature plasma discharge pipeline (3) through pipelines; and the controllable atmosphere system (5) is connected to the powder circulating and conveying pipeline system (1). The powder circulating and conveying pipeline system (1) is used for circulating and conveying to-be-treated powder at a controllable air pressure and flow speed. On one hand, a double-dielectric barrier discharge structure is introduced in a powder conveying process to form the low-temperature plasma discharge pipeline (3), thereby realizing a plasma discharge treatment on a transfer material powder; and on the other hand, the ball mill (2) is introduced to perform ball-milling refining or alloying on a powder subjected to plasma discharge treatment, thereby treating the powder through a large-area, uniform and high-energy non-equilibrium plasma in cooperation with mechanical ball milling and being capable of being used for performing a surface circulating modification treatment on a conventional metal, macromolecule or oxide powder.

公开(公告)号：US20230318188A1

公开(公告)日：2023-10-05

申请号：US18204942

申请日：2023-06-01

Applicant: South China University of Technology

Inventor： Yuehui Cui ,  Guoyan Shen ,  Quan Xue

IPC: H01Q9/04 ,  H01Q5/15 ,  H01Q5/47

CPC classification number: H01Q9/0485 ,  H01Q5/15 ,  H01Q5/47

Abstract: An aperture-sharing method for a dual-band aperture-shared antenna. By means of the method, a first dielectric substrate is arranged directly above a floor, a second dielectric substrate is arranged between the floor and the first dielectric substrate; a first meta surface, a first radiation ring, a second radiation ring and a second meta surface are arranged in a first quadrant to a fourth quadrant of the top surface of the first dielectric substrate; a fourth radiation ring, a fourth meta surface, a third meta surface and a third radiation ring are arranged in a first quadrant to a fourth quadrant of the bottom surface of the first dielectric substrate; first high-frequency antenna elements are symmetrically arranged on the top surface of the second dielectric substrate; and second high-frequency antenna elements are symmetrically arranged on the bottom surface of the second dielectric substrate. Further disclosed is a dual-band aperture-shared antenna structure.