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41. 发明申请

US20220136098A1 Method for improving service life of magnetron 有权
公开(公告)号：US20220136098A1
公开(公告)日：2022-05-05
申请号：US17576794
申请日：2022-01-14
申请人： Sichuan University
发明人： Kama Huang , Yang Yang , Changjun Liu , Huacheng Zhu
IPC分类号： C23C14/35 , H01J37/34 , H01J37/32
摘要： A method for improving service life of a magnetron, which belongs to the technical field of microwave applications, includes: taking anode working voltage range is taken as n voltage values U1 . . . Un constituting an arithmetic sequence; taking the voltage value as the anode voltage; in each voltage value, adjusting the magnet coil current between I min and Imax by the coil current control part , so that the output power P of the experimental magnetron is equal to the target power P0, and measuring the cathode filament temperature at this time by the temperature measuring part, which is denoted as Ti; measuring all the cathode filament temperatures Ti as the temperature data set corresponding to P0 by the temperature measuring part; taking out the minimum temperature value Tmin in the temperature data set, and using the anode voltage value and the magnet coil current value corresponding to Tmin as the working magnetron, wherein the output power is the anode voltage value and the magnet coil current value of P0. The present invention provides a method for improving the service life of a magnetron, which adjusts the electric field and the magnetic field, finds the synergy between the magnetic field and the electric field, and improves the service life of the magnetron.

42. 发明申请

US20220135526A1 QUATERNARY AMMONIUM SALT COMPOUND, PREPARATION METHOD THEREFOR AND USE THEREOF 有权
公开(公告)号：US20220135526A1
公开(公告)日：2022-05-05
申请号：US17427521
申请日：2020-01-21
申请人： WEST CHINA HOSPITAL, SICHUAN UNIVERSITY
发明人： Bowen KE , Jin LIU , Wensheng ZHANG , Jun YANG , Lei TANG
IPC分类号： C07D211/60 , C07D205/04 , C07D207/16 , C07D223/06 , C07D413/06 , C07D413/12
摘要： A quaternary ammonium salt compound of formula I is fast-acting and has a long-term local anaesthetic effect after a single administration, the sensory nerve block time being longer than the motor nerve block time, has both a long-acting local anaesthetic effect and a selective local anaesthetic effect, and also significantly reduces the side effects of quaternary ammonium salt compounds with the structural features of surfactants and is highly safe; thus, the compound of formula I and the pharmaceutically acceptable salt thereof can be used for the preparation of saft drugs having a long-term local anaesthetic effect and a selective local anaesthetic effect

43. 发明申请

US20220127239A1 GLYCOSYL DONOR, PREPARATION METHOD THEREFOR, AND USE THEREOF 有权
公开(公告)号：US20220127239A1
公开(公告)日：2022-04-28
申请号：US17428562
申请日：2020-07-21
申请人： SICHUAN UNIVERSITY
发明人： Dawen NIU , Xia ZHANG , Liqiang WAN , Chen ZHANG , Demeng XIE
IPC分类号： C07D309/08 , C07D307/18 , C07D407/12 , C07D405/12 , C07D493/10 , C07D493/06 , C07D405/14
摘要： A glycosyl donor represented by formula (I) is used for preparing an S-glycoside compound represented by formula (III), an O-glycoside compound represented by formula (V), and a C-glycoside compound represented by formula (V). The glycosyl donor is a raw material in the preparation of O-glycoside, S-glycoside, and C-glycoside compounds by means of a free radical reaction, most of which have a special α configuration.

44. 发明申请

US20220120556A1 METHOD FOR MEASURING BLADE CROSS-SECTION PROFILE BASED ON LINE STRUCTURED-LIGHT SENSOR AT HIGH PRECISION 有权
公开(公告)号：US20220120556A1
公开(公告)日：2022-04-21
申请号：US17392528
申请日：2021-08-03
申请人： Sichuan University
发明人： Ming YIN , Dengying OU , Zongping WANG , Haohao LIU , Luofeng XIE , Guofu YIN
IPC分类号： G01B11/24
摘要： The present disclosure provides a method for measuring a blade cross-section profile based on a line structured-light sensor at a high precision, including: (10) pose calibration on a line structured-light sensor; (20) calibration on a rotation axis: calibrating the rotation axis with a lateral datum plane of a blade; and (30) cross-section profile measurement on a target measured blade: establishing a global coordinate system, and converting blade cross-section curve feature data acquired by a data coordinate system to the coordinate system for splicing, thereby measuring a blade cross-section profile. The present disclosure reduces the error arising from transfer of calibration objects, reduces the rotation error because it does not involve the rotation angle of the turntable when calibrating the rotation axis and the rotation center, and reduces the translational error of the line structured-light sensor as positions for rotating the line structured-light sensor in two times are unchanged.

45. 发明授权

US11289913B2 Dynamic stability analysis and control method for voltage sourced converter based high voltage direct current transmission system 有权
公开(公告)号：US11289913B2
公开(公告)日：2022-03-29
申请号：US16790747
申请日：2020-02-14
申请人： Sichuan University
发明人： Baohong Li , Tianqi Liu , Yan Tao , Shunliang Wang
IPC分类号： H02J3/36 , H02M7/757
摘要： A dynamic stability analysis and control method for a voltage sourced converter based high voltage direct current (VSC-HVDC) transmission system. The method includes the following steps: unlocking a converter station of the VSC-HVDC transmission system to make the VSC-HVDC transmission system run in a non-island control mode; extracting corresponding parameters of the VSC-HVDC transmission system, wherein the parameters include an effective voltage value Ut0 of an AC system, an outgoing reactive power Qvsc0 of the VSC-HVDC transmission system, a gain kp of a phase-locked loop (PLL), and a proportional integral time constant ki of the PLL; calculating a short-circuit ratio (SCR), an unit value of Ut0 and an unit value of Qvsc0; calculating a key stable component; checking the sign of the key stable component to determine the stability of the VSC-HVDC transmission system.

46. 发明申请

US20220064471A1 FUNCTIONAL INK SUITABLE FOR 3D PRINTING AND PREPARATION METHOD THEREOF 有权
公开(公告)号：US20220064471A1
公开(公告)日：2022-03-03
申请号：US17420722
申请日：2019-12-30
申请人： Sichuan University
发明人： Chuhong ZHANG , Wenbin KANG , Li ZENG , Shangwen LING
IPC分类号： C09D11/52 , C09D11/037 , C09D11/033 , C09D11/08 , C09D11/106 , C09D11/14 , C09D11/102 , B33Y70/00 , H01M4/04
摘要： A functional ink suitable for 3D printing and a preparation method thereof are provided. The ink includes the following components in parts by weight: 0.5-1.5 parts of a regulator, 1-5 parts of a conductive material, 0.1-0.5 parts of a crosslinking agent, 0.1-0.5 parts of a catalyst, and 10-80 parts of a solvent. The prepared functional ink has a self-healing function at room temperature, eliminating the interface resistance between printing layers and improving the mechanical strength between the layers. Moreover, the prepared functional ink has excellent electrical conductivity and a variety of electrical, magnetic, and electrochemical properties, and can be applied in the fields of functional materials and devices such as energy storage, electromagnetic shielding and stress sensing.

47. 发明申请

US20220007472A1 Microwave heating device with reflection protection 有权
公开(公告)号：US20220007472A1
公开(公告)日：2022-01-06
申请号：US17480354
申请日：2021-09-21
申请人： Sichuan University
发明人： Huacheng Zhu , Yang Yang
IPC分类号： H05B6/70 , H01P1/38
摘要： A microwave heating device with reflection protection belongs to a technical field of microwave applications. A first port of a circulator is connected to a microwave generator, and a second port of the circulator is connected to a microwave transmission device. A water load comprises a waveguide section, a metamaterial structure layer and the absorption tube. One end of the waveguide section is connected to a third port of the circulator, and the other end is sealed by a metal plate. The metamaterial structure layer is arranged in the waveguide section, and a center of the metamaterial structure layer has an accommodation space. The absorption tube is arranged along an internal wall of the accommodation space with a spiral extending form. Both ends of the absorption tube penetrate the waveguide section, and coolant flows in the absorption tube. Relative dielectric constants of the metamaterial structure layer gradually increase.

48. 发明申请

US20210322979A1 LIQUID STORAGE AND CONTROLLED-RELEASE DEVICE AND BIOLOGICAL DETECTION CHIP 有权
公开(公告)号：US20210322979A1
公开(公告)日：2021-10-21
申请号：US17166546
申请日：2021-02-03
申请人： Capitalbio Corporation , West China Hospital of Sichuan University
发明人： Xinying Zhou , Lei Wang , Liang Bai , Tengfei Guo , Shuo Li , Baolian Li , Bin Zhuang , Xiang Chen , Hongju Guo , Xiaolei Zhao , Wanli Xing , Jing Cheng
IPC分类号： B01L3/00
摘要： A liquid storage and controlled-release device and a biological detection chip. The liquid storage and controlled-release device comprises a liquid storage capsule with a liquid storage body which is deformable under a pressure, and a sealing layer for sealing the liquid storage body. A support platform is provided right below the liquid storage capsule and tightly connected with the liquid storage capsule, wherein, a directional release chamber is provided at the middle of the support platform, and the directional release chamber is provided with a guiding chamber for collecting the liquid and a sharp edge for inducing break. Compared with the conventional technology, the opening for liquid release is at the end far away from the rotation center, so that the liquid can be released completely by the centrifugal force, ensuring the quantitative release of stored liquid and reducing the influence on the accuracy of the subsequent detection.

49. 发明申请

US20210322641A1 ANTI-THROMBOTIC AND ENDOTHELIALIZATION-ENHANCED BIOPROSTHETIC VALVE MATERIAL AND PREPARATION METHOD THEREOF 有权
公开(公告)号：US20210322641A1
公开(公告)日：2021-10-21
申请号：US17235952
申请日：2021-04-21
申请人： Sichuan University
发明人： Li YANG , Yunbing WANG , Rifang LUO , Xingdong ZHANG
IPC分类号： A61L27/36 , A61L27/24
摘要： An anti-thrombotic and endothelialization-enhanced bioprosthetic valve material and preparation thereof are provided. The preparation method includes the following steps: immersing a glutaraldehyde cross-linked bioprosthetic valve material in functional reagent solution for 1-24 h, adjusting pH value of the solution to 3-8, removing it from solution and cleaning with deionized water. The new valve material of the present invention can effectively reduce the toxicity and side effects of the existing glutaraldehyde cross-linked bioprosthetic valve material and effectively reduce thrombosis, along with enhanced endothelialization. The material prepared can be used for pulmonary valve, aortic valve, mitral valve, tricuspid valve, venous valve and other cardiovascular implantable medical devices.

50. 发明申请

US20210268151A1 Pre-Loadable Biological Heart Valve Capable of Rapid Rehydration and Preparation Method Thereof 有权
公开(公告)号：US20210268151A1
公开(公告)日：2021-09-02
申请号：US17313910
申请日：2021-05-06
申请人： VENUS MEDTECH (HANGZHOU), INC. , Sichuan University
发明人： Yunbing Wang , Gaocan Li , Yang Lei , Li Yang , Hou-Sen Lim , Dajun Kuang , Jincheng Yu
IPC分类号： A61L27/36
摘要： A pre-loadable biological heart valve capable of rapid rehydration and a preparation method thereof. The preparation method comprises a cross-linking treatment, wherein a biological valve is cross-linked by soaking in an aqueous glutaraldehyde solution; a hydrophilic treatment, wherein the biological valve is soaked in a solution containing a hydrophilic molecule and a condensing agent, to allow the hydrophilic molecule to be immobilized on the biological valve by chemical grafting; and a drying treatment, wherein the biological valve after the hydrophilic treatment and the cross-linking treatment is dried to obtain a pre-loadable biological heart valve capable of rapid rehydration. The pre-loadable biological heart valve prepared by the preparation method of the present disclosure achieves rapid rehydration, and the crease can be quickly flattened after rehydration, bringing convenience during use.

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