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公开(公告)号：US11486096B2
公开(公告)日：2022-11-01
申请号：US16632544
申请日：2018-10-31
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Huiming Fan , Jianhua Chen , Haibin Wang , Qian Gan , Jiahe Li , Da Gao , Mingfeng Guo
Abstract: A novel method for strengthening and reinforcing ancient books is provided. Such treatment method comprises: first placing the ancient books to be treated in a closed strengthening and reinforcing device; after sealing, performing dehumidification operation and vacuumizing operation on system in sequence to maintain the system dry; and after the system is stable under negative pressure, turning on a fan set, directly delivering a strengthening and reinforcing powder to the strengthening and reinforcing device via a gas pipe, or atomizing a strengthening and reinforcing solution through a ultrasonic atomizer and then delivering the atomized solution to the strengthening and reinforcing device via the gas pipe, so that the ancient books to be treated absorb the strengthening and reinforcing agent sufficiently and evenly; and meanwhile monitoring pH value and humidity of the ancient books, thereby implementing strengthening and reinforcement of the ancient books.
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公开(公告)号：US20220343466A1
公开(公告)日：2022-10-27
申请号：US17626503
申请日：2019-10-25
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Junying CHEN , Renxin ZHUANG
Abstract: Disclosed is a high-contrast minimum variance imaging method based on deep learning. For the problem of the poor performance of a traditional minimum variance imaging method in terms of ultrasonic image contrast, a deep neural network is applied in order to suppress an off-axis scattering signal in channel data received by an ultrasonic transducer, and after the deep neural network is combined with a minimum variance beamforming method, an ultrasonic image with a higher contrast can be obtained while the resolution performance of the minimum variance imaging method is maintained. In the present method, compared with the traditional minimum variance imaging method, after an apodization weight is calculated, channel data is first processed by using a deep neural network, and weighted stacking of the channel data is then carried out, so that the pixel value of a target imaging point is obtained, thereby forming a complete ultrasonic image.
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213.发明授权公开(公告)号：US11480510B2
公开(公告)日：2022-10-25
申请号：US16463392
申请日：2017-11-20
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Gengxin Ning , Qiuyan Ning , Bowen Wang , Jun Zhang , Yizhi Feng , Fei Ji
Abstract: Provided are a method and device for dynamically monitoring suspended matter based on an annular interleaving array. An annular multi-band interleaving array used thereby can be combined with the Doppler effect to on-line measure the concentration and linearity distribution of the suspended matter and a three-dimensional flow velocity of suspended water, thus realizing real-time monitoring of water quality. A frequency range needing to be measured is divided into different frequency bands, and different transceiving transducer arrays are used to transmit and receive measurement signals, so that the concentration and linearity distribution of various suspended matter with an extremely large linearity range can be obtained through one measurement.
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公开(公告)号：US20220326087A1
公开(公告)日：2022-10-13
申请号：US17436789
申请日：2020-04-30
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Zhongmin YANG , Xiaoxiao WEN , Wei LIN , Xiaoming WEI
Abstract: The present application relates to a light pulse signal processing system. A to-be-measured signal light source generates a to-be-measured signal light pulse, and the to-be-measured signal light pulse is transmitted to a cylindrical lens. The to-be-measured signal light pulse is converted into a to-be-measured signal light pulse having a spatial angle chirp by the cylindrical lens, and is outputted and is incident into a pair of long mirrors at different angles. The to-be-measured signal light pulse incident at different incident angles is delayed by the pair of long mirrors. A cluster of to-be-measured signal light pulses with a corresponding repetition rate is outputted to a beam combining mirror, and is combined with a cluster of reference light pulses by the beam combining mirror. A light signal analysis device analyzes the combined cluster of light pulses.
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公开(公告)号：US20220294459A1
公开(公告)日：2022-09-15
申请号：US17742336
申请日：2022-05-11
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Zhijian CHEN , Ziying WU , Changjian ZHOU , Pengfei YU , Bin LI , Shaolin ZHOU
Abstract: A frequency locking method for a phase-locked loop comprises the following steps: S1, a frequency control module controls a numerically controlled oscillator to obtain an maximum output frequency and a minimum output frequency; S2, obtain a minimum frequency ratio and a maximum frequency ratio by means of a time-to-digital converter and the frequency control module; S3, calculate a first frequency control word and a first frequency ratio according to the minimum frequency ratio and the maximum frequency ratio; S4, the frequency control module uses the Newton's iterative method to recalculate a new frequency control word; S5, obtain a new frequency ratio according to the new frequency control word; S6, if the new frequency ratio is within an error range, end iteration and stably output the new frequency control word, and otherwise, jump to step S4.
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Patent Agency Ranking
216.发明申请公开(公告)号：US20220293480A1
公开(公告)日：2022-09-15
申请号：US17607901
申请日：2019-11-14
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY , GUANGDONG LUCKYSTAR ELECTRONIC TECHNOLOGY CO., LTD , SHENZHEN GOOD-MACHINE AUTOMATIC EQUIPMENT CO., LTD
Inventor： Zongtao LI , Yong TANG , Hong WANG , Shudong YU , Kejian WU , Guanwei LIANG , Xinrui DING
Abstract: The present invention discloses a welding method of a demetallized ceramic substrate having a surface capillary microgroove structure. The demetallized ceramic substrate includes a ceramic substrate main body and surface capillary microstructures. The surface capillary microstructures are arranged on two lateral sides of the ceramic substrate main body and the surface capillary microstructures specifically are capillary microgrooves. The welding method includes the following steps: fixing a chip to an upper surface of the demetallized ceramic substrate having the surface capillary microgroove structure, fixing the ceramic substrate with the chip to a printed circuit board having a bonding pad, and placing melted solder on the bonding pad, and driving the solder to ascend to an electrode of the chip from the bonding pad in a lower layer by means of a capillary force, thereby realizing an electrical connection between the chip and the printed circuit board.
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公开(公告)号：US11442536B2
公开(公告)日：2022-09-13
申请号：US16324926
申请日：2017-11-09
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Yuanqing Li , Shenghong He
Abstract: The present invention discloses an EOG-based method and apparatus for asynchronous character input, said method comprising the following steps: displaying a virtual keyboard having a total of N keys on a display, the virtual keyboard flickering in rounds, wherein in each round, all N keys randomly flicker once; when spelling, a user blinks after the flickering of a target key, so as to acquire electro-oculogram signals of the user in real-time; capturing electro-oculogram data within a time period following the flickering of a key from the acquired electro-oculogram signals, and using said electro-oculogram data as an original feature vector of the flickering key; N original feature vectors being generated in each cycle, an electro-oculogram identification method is called to identify the N original feature vectors, and outputting a certain result from 0 to N, wherein 0 indicates that a condition for character input is not met, and 1 to N correspond to the N keys on the virtual keyboard. The present invention ensures that blinking by a user may be detected normally, while at the same time effectively eliminating misjudgments of non-blinking signals, thus increasing the accuracy rate of character input.
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公开(公告)号：US20220282290A1
公开(公告)日：2022-09-08
申请号：US17639703
申请日：2020-04-21
Applicant: South China University of Technology , Guangdong Yue-S Special Nutrition Technology Co., Ltd.
Inventor： Yonghua Wang , Xuan Liu , Bo Yang , Weifei Wang , Dongming Lan , Riming Luo
IPC: C12P7/6454
Abstract: Disclosed is a method for synthesizing a diglyceride. The diglyceride is obtained by mixing a fatty acid donor with glycerol, partial glyceride lipase, and monoglyceride lipase by adding water, then subjecting the same to an esterification reaction, with a reaction time of 8 to 24 hours, and further separating and purifying the same. In the present invention, monoglyceride lipase is used to promote the reaction efficiency of partial glyceride lipase in the esterification reaction, so as to increase the synthesis rate of diglyceride. Compared with a single enzyme, the synthesis time is shortened by half or more, and 45.50% or more of diglyceride is obtained after the esterification reaction. Since substantially no triglyceride is generated in products, the content of DAG reaches 98% or more after the same has been purified by means of molecular distillation.
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219.发明申请公开(公告)号：US20220280822A1
公开(公告)日：2022-09-08
申请号：US17749168
申请日：2022-05-20
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Guohua CHEN , Zhihang ZHOU
Abstract: Disclosed by the present invention is a target pipeline dynamic thermal failure analysis method in a parallel pipeline jet fire scenario, including the following steps: 1, inputting operation parameters of source pipeline to obtain instantaneous thermal radiation value received by target pipeline in instantaneous jet fire near field; 2, establishing fitting function relational expression of the instantaneous thermal radiation value and time change; 3, calculating instantaneous temperature distribution result of the pipe wall of the target pipeline; 4, calculating convective heat transfer coefficient of inner wall of the target pipeline; 5, calculating instantaneous thermal stress and total instantaneous stress borne by the pipe wall of the target pipeline in a circumferential direction, radial direction and axial direction; 6, carrying out testing to obtain yield strength and ultimate tensile strength corresponding to different temperatures; and 7, analyzing and judging target pipeline dynamic failure result.
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公开(公告)号：US11427532B2
公开(公告)日：2022-08-30
申请号：US17298951
申请日：2019-10-28
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Shuizhu Wu , Lingfeng Xu , Fang Zeng
IPC: G01N21/78 , G01N21/64 , C07C251/24 , C09K11/06
Abstract: Disclosed is a fluorescent compound for the detection of isocyanate substances, a preparation method therefor and use thereof as a test-paper-type detection probe. The fluorescent compound is 2,4-di(((4′-(diphenylamino)-[1,1′-biphenyl]-4-yl)imino)methyl)phenol. The fluorescent compound is prepared by means of a one-step method. The fluorescent compound has simple and convenient preparation with high yield, and is capable of making a rapid and specific response to isocyanate substances. Moreover, the fluorescence intensity of the fluorescent compound will enhance with the increase of the isocyanate concentration. The fluorescent compound can be made into a portable test-paper-type probe for the detection of isocyanate substances in air, and can achieve the visual detection of volatile isocyanate gases. The probe has an aggregation-induced emission effect, and thus it has higher fluorescence quantum yield when using a test-paper-type probe for detection.
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