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公开(公告)号：US12255231B2
公开(公告)日：2025-03-18
申请号：US17254107
申请日：2019-01-11
Applicant: South China Normal University
Inventor： Richard Notzel , Peng Wang , Stefano Sanguinetti , Guofu Zhou
Abstract: Provided is a nanowire array, in which a plurality of nanowires are densely packed and in contact with each other via side walls to form a three-dimensional, compact layer structure, wherein the plurality of nanowires are formed from InGaN-based material. Also provided is an optoelectronic device comprising the nanowire array which is epitaxially grown on a surface of a substrate (12). Further provided are methods for preparing the nanowire array and the optoelectronic device.
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公开(公告)号：US12251458B1
公开(公告)日：2025-03-18
申请号：US18923620
申请日：2024-10-22
Applicant: South China Normal University
Inventor： Haocai Chang , Wenwen Ouyang , Yongci Tan , Jing Tong
Abstract: The present disclosure relates to the technical field of anti-aging preparations for skin, and especially relates to an anti-aging preparation for skin and an application thereof. Components of the anti-aging preparation for skin includes a 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoic acid and/or a salt thereof. In the present disclosure, the anti-aging effect of the 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoic acid and the salt thereof (such as sodium 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoate) on skin has been discovered, and the 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoic acid and the salt thereof can be applied in preparing the anti-aging preparation for skin that has good anti-aging effect on skin.
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公开(公告)号：US20230368896A1
公开(公告)日：2023-11-16
申请号：US18183931
申请日：2023-03-14
Applicant: SOUTH CHINA NORMAL UNIVERSITY
Inventor： Qi YE , Lihui WEN , Jiawei CHEN , Chihua FANG
CPC classification number: G16H30/40 , G06T7/10 , G06T3/4007 , G06T2207/20084
Abstract: The present invention provides a medical image segmentation method based on a Boosting-Unet segmentation network. By dividing training of an overall segmentation network into training of m sub segmentation networks, the method inherits convolution kernel parameters of the (k−1)th sub segmentation network during training of the kth sub segmentation network, thereby greatly decreasing the quantity of the convolution kernel parameters during every training and improving the learning ability of the network and the resistance to noise and image blur. In addition, a plurality of sub segmentation networks are arranged, so that the efficiency of the network is improved, a depth of an image data feature is also extracted, and the image data is segmented precisely, thereby improving the learning ability of the overall segmentation network to the image data feature, enhancing the robustness to noise disturbance information and further improving the performance of image segmentation.
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24.发明授权公开(公告)号：US11473013B1
公开(公告)日：2022-10-18
申请号：US17732539
申请日：2022-04-29
Applicant: South China Normal University
Inventor： Tao Chen , Bo Yan , Jian Huang
Abstract: A magnetic soil remediation agent for soil heavy metal pollution and a preparation method and application thereof are provided. The magnetic soil remediation agent is prepared by using remediation agent framework material and magnetic core material as raw materials, and heavy metal collector as modifier; said framework material is silicon dioxide activated by strong alkali; said magnetic core material comprises magnetic materials Fe3O4 and γ-Fe2O3; said modifier comprises ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid trisodium salt (NTA), (S,S)-ethylenediamine-N,N-disuccinic acid trisodium salt (EDDS) and mercaptoethylamine. The remediation agent of the present invention can effectively passivate the heavy metals in the soil, reduce their available contents, and inhibit the absorption of heavy metals by plants.
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公开(公告)号：US11368608B2
公开(公告)日：2022-06-21
申请号：US16618376
申请日：2018-01-18
Applicant: SOUTH CHINA NORMAL UNIVERSITY
Inventor： Jun Li , Miao Lei , Xiaofang Dai , Shangyuan Wang , Ting Zhong , Chuangxue Liang , Chen Wang , Ping Xie , Ruiqiang Wang
Abstract: A compressed sensing based object imaging system and an imaging method thereof. The object imaging system comprises a light source generation unit (11), a filter unit (12), an image generation unit (13), an image acquisition unit (14), and an image reconstruction unit (15). The light source generation unit (11) generates experimental laser; the filter unit (12) filters high frequency scattered light and forms parallel light; the image generation unit (13) generates an experimental image in which an object image (16) and a specific measurement matrix (17) are superimposed; the image acquisition unit (14) performs compression sampling on the generated experimental image; and the image reconstruction unit (15) reconstructs sampling data to restore the object image (16). The imaging method comprises: establishing a sample database comprising the specific target object image (16); training sample images to obtain the specific measurement matrix (17); and simultaneously completing image sampling, image compression and image recognition in an all-optical system. The system and the method can greatly reduce the data volume recorded in image recognition and image matching, thus improving the real-time performance of the system, and providing a possibility of concurrent processing by machine vision and artificial intelligence.
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Patent Agency Ranking
公开(公告)号：US20210272802A1
公开(公告)日：2021-09-02
申请号：US17254102
申请日：2018-12-19
Applicant: South China Normal University
Inventor： Richard Notzel , Peng Wang , Stefano Sanguinetti , Guofu Zhou
IPC: H01L21/02
Abstract: Provided is a nanowire array, in which a plurality of nanowires are densely packed and in contact with each other via side walls to form a three-dimensional, compact layer structure, wherein the plurality of nanowires are formed from InGaN-based material. Also provided is an optoelectronic device comprising the nanowire array which is epitaxially grown on a surface of a substrate (12). Further provided are methods for preparing the nanowire array and the optoelectronic device.
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27.发明授权公开(公告)号：US11079631B2
公开(公告)日：2021-08-03
申请号：US16495787
申请日：2018-05-04
Inventor： Guofu Zhou , Laurens De Haan , Pei Zhang , Wei Zhao
IPC: G02F1/1337 , C09K19/20 , C09K19/38 , C09D5/33 , C09K19/04
Abstract: A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating. The preparation of the main chain cholesteric phase liquid crystal polymer of the present disclosure requires only a simple thermally-driven polymerization reaction.
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公开(公告)号：US10942402B2
公开(公告)日：2021-03-09
申请号：US16483804
申请日：2017-11-08
Applicant: SOUTH CHINA NORMAL UNIVERSITY , SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD. , ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICS
Inventor： Guofu Zhou , Xiaowen Hu , Nan Li
IPC: G02F1/1334 , G02F1/1347 , G02F1/1337 , G02F1/137 , G02F1/1339
Abstract: An electric response infrared reflection device and a preparation method thereof. The device comprises three light-transmitting conductive substrates which are oppositely arranged. Two adjacent light-transmitting conductive substrates of the three light-transmitting conductive substrates are respectively packaged to form a first adjusting area and a second adjusting area. Both the first adjusting area and the second adjusting area are filled with liquid crystal layers. Each of the liquid crystal layers comprises a mixed liquid crystal material. The mixed liquid crystal material comprises a chiral nematic phase liquid crystal, a monomer, a photoinitiator, and a chiral dopant. The spiral direction of the chiral nematic phase liquid crystal in the first adjusting area is opposite to the spiral direction of the chiral nematic phase liquid crystal in the second adjusting area, so that the total reflection of an infrared band can be implemented.
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公开(公告)号：US10901278B2
公开(公告)日：2021-01-26
申请号：US16498740
申请日：2018-10-10
Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , Academy of Shenzhen Guohua Optoelectronics
Inventor： Guofu Zhou , Xiaowen Hu , Wei Zhao , Haitao Sun , Wenmin Yang , Lingling Shui
IPC: G02F1/1347 , G02F1/1334 , G02F1/137
Abstract: The present disclosure discloses an electroresponsive liquid crystal dimming device comprising a first light transmitting conductive substrate, a first polymer network stabilized liquid crystal layer, a positive liquid crystal layer, a second polymer network stabilized liquid crystal layer and a second light transmitting conductive substrate which are arranged in sequence; and the first polymer network stabilized liquid crystal layer and the second polymer network stabilized liquid crystal layer reflect the circularly polarized light having the same polarization direction. The conversion of the positive liquid crystals in each layer between different states is driven by changing the magnitude of the access voltage of the liquid crystal dimming device according to the present disclosure, thereby realizing the adjustment of blurring to transparent states and color to colorless states of the liquid crystal dimming device, having a good application prospect in the window glass, and home glass window, and the like.
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公开(公告)号：US20200333514A1
公开(公告)日：2020-10-22
申请号：US16498760
申请日：2018-10-10
Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , Academy of Shenzhen Guohua Optoelectronics
Inventor： Guofu ZHOU , Xiaowen HU , Wei ZHAO , Qiumei NIE , Weijie ZENG , Haitao SUN
Abstract: Disclosed are a laser protective film and a laser protective device comprising the same. The laser protective film comprises, stackingly disposed: a first liquid crystal polymer layer for reflecting left-hand polarized light, a second liquid crystal polymer layer for reflecting right-hand polarized light, and a third liquid crystal polymer layer for absorbing incident laser. In the above way, the laser protective film of the present disclosure has a large angle of protection, high flexibility. In addition, it is easy to find any damage to the laser protective film of the present disclosure. Moreover, it can make modification to existing equipment. Thus, the present disclosure has a good application prospect in many fields such as laser goggles, window glass and the like.
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