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公开(公告)号:US20210362193A1
公开(公告)日:2021-11-25
申请号:US16954584
申请日:2018-10-10
发明人: GANG WANG , ZHIHUA FENG , JUNFANG NI , XIANGJUN LAN
摘要: Provided is a bolt screening machine, including an external frame, a feeding mechanism, and a screening mechanism, wherein the feeding mechanism and the screening mechanism are combined with and mounted on the external frame, the unscreened bolts are fed into the screening mechanism through the feeding mechanism, and the screening mechanism screens and arranges the bolts.
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公开(公告)号:US20200286691A1
公开(公告)日:2020-09-10
申请号:US16759330
申请日:2018-07-04
发明人: Aijuan GU , Hao FANG , Guozheng LIANG , Li YUAN
摘要: The invention discloses an aramid fiber electrode and a preparation method thereof. Silver nanoparticles, carbon nanotubes and polypyrrole were sequentially coated on the surface of the aramid fiber by chemical bonding, to prepare an aramid fiber electrode, two aramid fiber electrodes were wound with an electrolyte to obtain an aramid fiber electrochemical capacitor. Compared with the polymer fiber electrochemical capacitor prepared in the prior art, the aramid fiber electrochemical capacitor provided by the present invention has both high specific capacitance, high energy density, high mechanical performance, high stability, good flexibility and wearability. And other characteristics; the preparation method is controllable and suitable for large-scale applications.
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3.
公开(公告)号:US20200283595A1
公开(公告)日:2020-09-10
申请号:US16759327
申请日:2018-02-27
发明人: Guozheng LIANG , Youhao ZHANG , Aijuan GU , Li YUAN
IPC分类号: C08J11/12 , C08G59/42 , C07D327/00
摘要: This invention provides a self-healable epoxy resin and its preparation, recycling and remolding method. With the catalyst of potassium iodide, an ester solution of 2-mercaptoacetic acid was oxidated by 30% H2O2 to form 2,2′-dithiodiacetic acid; then 2,2′-dithiodiacetic acid was dehydrated and cyclizated by anhydride to form 1,4,5-oxadithiepane-2,7-dione; 1,4,5-oxadithiepane-2,7-dione and methylhexahydrophthalic anhydride were mixed by mass ratio and cured with epoxides to get the self-healable epoxy resin. Through controlling dynamic and permanent three-dimensional crosslinked network, the self-healable epoxy resins provided in this invention exhibit high thermal resistance and improved mechanical properties as well as excellent self-healing ability, recyclability and remoldability. This invention provides a preparation method with the merits of low cost, simple production processes, broad application prospects and strong utility.
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4.
公开(公告)号:US20240353829A1
公开(公告)日:2024-10-24
申请号:US17916720
申请日:2021-10-12
申请人: SOOCHOW UNIVERSITY
发明人: Jun WANG , Jun DAI , Xingxing JIANG , Weiguo HUANG , Zhongkui ZHU
IPC分类号: G05B23/02
CPC分类号: G05B23/0281 , G05B23/024
摘要: The present invention provides an unsupervised fault diagnosis method for mechanical equipment based on an adversarial flow model, main steps including: data preprocessing, converting a mechanical vibration signal into a frequency domain signal, and normalizing the amplitude value of the signal into a range of [0, 1]; prior distribution designing: designing a mixture of Gaussian distribution with K subdistributions, wherein K is determined by the number of mechanical equipment status; model construction: constructing an unsupervised fault diagnosis model by combining an autoencoder, a flow model, and a classifier; model training: training the unsupervised fault diagnosis model by using various classes of status data, along with the designed prior distribution, preset training steps, loss functions, and an optimization algorithm; and fault diagnosis: inputting status data of mechanical equipment into the trained unsupervised fault diagnosis model to obtain a data clustering result and a fault diagnosis result.
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5.
公开(公告)号:US20240353433A1
公开(公告)日:2024-10-24
申请号:US17928893
申请日:2021-12-30
申请人: SOOCHOW UNIVERSITY
发明人: Jianfeng GE , Mingsen ZHU , Qing YU , Ru SUN
IPC分类号: G01N33/92 , G01N33/533 , G01N33/58
CPC分类号: G01N33/92 , G01N33/533 , G01N33/582
摘要: The invention provides an amino-substituted chromenoquinoline-based fluorescent marker, and preparation and use thereof. The amino group of an aromatic amine compound is subjected to a one-step cyclization reaction with two o-chloroformylcumarins, to obtain a series of nitrogen-containing heterocyclic compound. Such compounds have excellent fluorescence emission performance, and also have good photostability in various organic solvents. The problem of photostability of cyanine dyes is effectively solved, and these dyes are useful in marking various organelles at cellular level. The introduction of the nitrogen-containing heterocyclic ring improves the biocompatibility of the compound, thus laying a good foundation for use in organisms. Further, the raw materials used in such reactions are cheap and readily available, the steps of synthesizing the marker are simple and easy to operate, and the production cost is effectively reduced while not lowering the performance of the marker. Therefore, the present invention is of commercial value.
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6.
公开(公告)号:US12092543B2
公开(公告)日:2024-09-17
申请号:US17631479
申请日:2021-01-22
申请人: SOOCHOW UNIVERSITY
发明人: Baoqing Nie , Jian Liu , Xinjian Chen , Jialei Geng
IPC分类号: G01L5/165
CPC分类号: G01L5/165
摘要: The invention provides a three-dimensional force flexible tactile sensor and a fabrication method and a decoupling method thereof. The three-dimensional force flexible tactile sensor includes a first flexible layer, a porous elastic layer and a second flexible layer which are arranged in sequence. The first flexible layer is provided with a plurality of first electrodes. The second flexible layer is provided with a second electrode. The first electrodes and the second electrode are both clung to the porous elastic layer. The sensor not only can detect normal mechanical load, but also can measure the force tangent to the surface of the sensor, thereby realizing the detection of the three-dimensional force.
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公开(公告)号:US20240270669A1
公开(公告)日:2024-08-15
申请号:US18037553
申请日:2021-02-23
申请人: SOOCHOW UNIVERSITY
发明人: Shilei ZHANG , Wenjing ZHU , Chunhui FANG , Yanwei HU , Xin CHEN , Jiawen HUANG
摘要: Disclosed in the present invention is a method for preparing 2-iodo aryl ether under the action of alkali metal hydride: adding alkali metal hydride and phenol to a solvent, then adding 1,2-diiodoarene, and reacting at 0-100° C. to obtain a 2-iodo aryl ether product. The coupling process of the present invention does not require the addition of a transition metal catalyst, and does not cause metal contamination to the product; the method of the present invention can be performed at room temperature and has high functional group compatibility, and solves the problem that existing metal-catalysed coupling to aryl ether reactions need to be performed at a relatively high temperature.
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8.
公开(公告)号:US20240261548A1
公开(公告)日:2024-08-08
申请号:US18577719
申请日:2022-03-22
发明人: Gang LI , Lu LI , Feng LI , Lirong DUAN
CPC分类号: A61M27/008 , A61L31/022 , A61L31/04 , A61L31/10 , A61L31/16 , A61M2205/0205 , A61M2205/0216 , A61M2207/00 , A61M2210/1089
摘要: A long-acting antibacterial anti-stenosis functional urethral stent and preparation method thereof is provided; the urethral stent is a tubular structure consisting of three layers: inner, middle and outer layers; the middle layer is a fabric tube; the outer layer is a silk fibroin film carrying anti-stenosis drugs; the inner layer is an antibacterial antifouling coating, consisting of chitosan-nanosilica arrays, villi, microvilli and antibacterial drugs; the preparation method includes: after making yarns into the fabric tube by textile molding, preparing the antibacterial and anti-fouling coating on the inner surface, and the silk fibroin film carrying anti-stenosis drugs on the outer surface respectively, to obtain the long-acting antibacterial anti-stenosis functional urethral stent. The method is simple, and the prepared urethral stent has a smooth surface and good biocompatibility, which has excellent properties such as radial compression force, circumferential expansion force, resistance to bending and torsion and elastic recovery.
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公开(公告)号:US12057273B2
公开(公告)日:2024-08-06
申请号:US17170062
申请日:2021-02-08
申请人: SOOCHOW UNIVERSITY
发明人: Yaowen Li , Weijie Chen , Yonfang Li
IPC分类号: H01G9/00 , H01G9/20 , H01L31/18 , H01M4/00 , H01M4/90 , H10K30/30 , H10K30/82 , H10K71/15 , H10K71/40 , H10K102/10
CPC分类号: H01G9/0036 , H01G9/2009 , H01G9/2018 , H01G9/2027 , H01L31/18 , H01M4/00 , H01M4/9033 , H10K30/30 , H10K30/82 , H10K71/15 , H10K71/441 , H10K2102/102 , H10K2102/103
摘要: A method for preparing an inorganic perovskite battery based on a synergistic effect of gradient annealing and antisolvent includes preparing a perovskite layer by a gradient annealing and an antisolvent treatment. A thickness of the perovskite layer is 100 to 1000 nm; when preparing a perovskite precursor solution of the perovskite layer, a solvent is an amide-based solvent and/or a sulfone-based solvent; a concentration of the perovskite precursor solution for preparing the perovskite layer is 0.4 to 2 M; and the gradient annealing is conducted at 40 to 70° C./0.5 to 5 min+70 to 130° C./0.5 to 5 min+130 to 160° C./5 to 20 min+160 to 280° C./0 to 20 min; and a solvent for the anti-solvent treatment is an alcohol solvent, a benzene solvent or an ether solvent.
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公开(公告)号:US12044595B2
公开(公告)日:2024-07-23
申请号:US17763494
申请日:2021-01-13
申请人: SOOCHOW UNIVERSITY
发明人: Changqing Shen , Shuangjie Liu , Xu Wang , Dong Wang , Yongjun Shen , Zaigang Chen , Aiwen Zhang , Xingxing Jiang , Juanjuan Shi , Weiguo Huang , Jun Wang , Guifu Du , Zhongkui Zhu
IPC分类号: G06F11/22 , G01M13/045 , G06N3/0464 , G06N3/08
CPC分类号: G01M13/045 , G06F11/2263 , G06N3/0464 , G06N3/08
摘要: The present invention provides a dynamic joint distribution alignment network-based bearing fault diagnosis method under variable working conditions, including acquiring bearing vibration data under different working conditions to obtain a source domain sample and a target domain sample; establishing a deep convolutional neural network model with dynamic joint distribution alignment; feeding both the source domain sample and the target domain sample into the deep convolutional neural network model with initialized parameters, and extracting, by a feature extractor, high-level features of the source domain sample and the target domain sample; calculating a marginal distribution distance and a conditional distribution distance; obtaining a joint distribution distance according to the marginal distribution distance and the conditional distribution distance, and combining the joint distribution distance and a label loss to obtain a target function; and optimizing the target function by using SGD, and training the deep convolutional neural network model.
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