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公开(公告)号：US10087106B2
公开(公告)日：2018-10-02
申请号：US15512068
申请日：2014-10-24
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Bo Wu , Qiang Zhang
Abstract: An axial compression steel tubular column with internal local restraint and filled with high-strength compound concrete containing normal-strength demolished concrete lumps and a construction process. The axial compression column includes a steel tube (1), high-strength fresh concrete (2), normal-strength demolished concrete lumps (3), a spiral stirrup (4), and longitudinal erection bars (6). The spiral stirrup (4) is arranged at a middle part inside the steel tube (1). The high-strength fresh concrete (2) is poured and the normal-strength demolished concrete lumps (3) are put alternately inside the steel tube (1). A compressive strength of the high-strength fresh concrete (2) is 30˜90 MPa greater than that of the normal-strength demolished concrete lumps (3).
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公开(公告)号：US10071946B2
公开(公告)日：2018-09-11
申请号：US15057632
申请日：2016-03-01
Applicant: The United States of America, as represented by the Secretary of Agriculture , School of Chemistry and Chemical Engineering, South China University of Technology
Inventor： Helen N. Lew , Karen Wagner , Xuetong Fan , Alberto Nunez , Robert A. Moreau , Michael J. Haas , Zongcheng Yan
IPC: C07C51/00 , C07C51/353 , A01N37/02
CPC classification number: C07C51/353 , A01N37/02 , A01N37/38 , C07C51/367 , C07C59/52
Abstract: Disclosed are methods for preparing phenolic branched chain fatty acids or alkyl esters thereof, involving subjecting in a pressurized container (a) at least one phenolic compound, (b) unsaturated fatty acids having 6 to 25 carbon atoms, alkyl esters thereof, or mixtures thereof, and (c) H-ferrierite zeolite catalyst in the presence of distilled water or alcohol and a nitrogen atmosphere at a temperature of about 100° C. to about 400° C. and a pressure of about 10 to about 1000 psi, and isolating saturated phenolic branched chain fatty acids or alkyl esters thereof or mixtures thereof. Also disclosed are methods for killing microorganisms on or in an object, involving contacting said object with an effective microorganisms killing amount of a composition comprising phenolic branched chain fatty acids or alkyl esters thereof, and optionally a carrier; the phenolic branched chain fatty acids or alkyl esters thereof may be produced by the methods described herein.
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143.发明申请公开(公告)号：US20180230239A1
公开(公告)日：2018-08-16
申请号：US15750512
申请日：2015-12-24
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Ling CHEN , Pingping BIE , Huayin PU , Xiaoxi LI , Binjia ZHANG
IPC: C08B30/12 , A23L5/30 , A23L29/212
CPC classification number: C08B30/12 , A23L5/30 , A23L29/212 , A23L29/219 , A23V2002/00
Abstract: A starch-based food thickener with low molecular weight and a preparation method thereof, comprising the steps of: adding starch powders with 5%-30% moisture content into an atmospheric pressure low-temperature dielectric barrier discharge plasma reactor, regulating the discharge gap to 0.2 mm-0.8 mm at atmospheric pressure, the discharge input voltage to 30 V-70 V, and the discharge current to 0.2 A-2.4 A, subjecting the materials in a fluidized state to plasma action in the circulating system by regulating the air flow rate with controlling time longer than 0.5 min, and then taking out the product after the completion of the reaction, i.e., to obtain a starch-based food thickener with low molecular weight. The method has such advantages as a simple technique involved, low cost, recyclable processing, large processing capacity, superior reaction uniformity, etc., and is also capable of efficiently and quickly degrading the molecular weight of starch, e.g., by 1-3 order(s) of magnitude within a short time. Moreover, the product has a superior transparency, retrogradation stability, and a certain thickening effect.
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公开(公告)号：US20180210983A1
公开(公告)日：2018-07-26
申请号：US15542080
申请日：2016-12-15
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xianmin ZHANG , Min LIU
IPC: G06F17/50
Abstract: A design method of topology optimization for flexible hinge is disclosed in the invention, comprising following steps: step 1: establishing a design model of topology optimization for flexible hinge, setting an outline of flexible hinge with a typical notch as a shape of design domain and defining a rigid region (non-design domain); step 2: establishing a finite element model of topology optimization for flexible hinge; step 3: establishing a mathematical model of topology optimization problem for flexible hinge based on the finite element model; step 4: calculating a sensitivity of topology optimization problem for flexible hinge; step 5: employing an optimization algorithm to solve the topology optimization problem for flexible hinge, updating a design variable and obtaining a final topology result graph; step 6: according to the final topology result graph obtained by the topology optimization, extracting its outline and obtaining a novel flexible hinge by appropriate modification. Using the method of topology optimization, the invention designs the flexible hinge on a concept level. The novel flexible hinge can be designed with a more complex structure and more excellent performances, having a larger flexibility, a higher precision and a smaller maximum stress.
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公开(公告)号：US10030962B2
公开(公告)日：2018-07-24
申请号：US15320505
申请日：2014-12-05
Applicant: South China University of Technology
Inventor： Xianmin Zhang , Ruizhou Wang
Abstract: Disclosed is a precision-positioning drive end pre-tightening device, which comprises a positioning platform (6), an actuator (14), a capacitive sensor (4), a capacitive sensor bracket (3), a pre-tightening block (12) and a film force sensor (13), wherein a sliding groove is provided in the middle of the positioning platform (6), and said pre-tightening block (12), said film force sensor (13) and said actuator (14) are provided in the sliding groove in sequence; the capacitive sensor bracket (3) is fixed on the positioning platform (6), and three connecting rods (3-1) which are connected in sequence via compliant hinges are axially provided at one end of the bracket body of the capacitive sensor bracket (3); an end surface of the capacitive sensor (4) and an upper side surface of the pre-tightening block (12) are parallel to each other, and a gap exists therebetween; and a two-stage pre-tightening device for pre-tightening the pre-tightening block (12) are also provided on the positioning platform (6). The technical means of the device is simple and easy, and the device can satisfy the requirements in related fields of precision positioning, precision and ultra-precision machining, precision operating, precision measurement, micro-electro-mechanical system, etc. for the precision-locating drive end pre-tightening device.
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Patent Agency Ranking
146.发明申请公开(公告)号：US20180191045A1
公开(公告)日：2018-07-05
申请号：US15678103
申请日：2017-08-15
Applicant: South China University of Technology
Inventor： Xiu Yin Zhang , Jin-Xu Xu
CPC classification number: H01P1/2002 , G01R33/32 , H01P1/127 , H01P1/20327 , H01P1/2084 , H01P7/10 , H03H7/0153 , H03H7/06
Abstract: A filtering switch based on dielectric resonator is disclosed which comprising a rectangular dielectric resonator, a metal cavity in which the dielectric resonator is located, a switch circuitry and a T-shape feeding line structure. The ON- and OFF-states of the filtering switch based on dielectric resonator are realized by controlling a coupling between the dielectric resonator and the feeding line structure. EM fields of the rectangular dielectric resonator and T-shape feeding line structure have been theoretically analyzed and utilized to guide the coupling control. The results have shown low ON-state loss, high power capability and high OFF-state isolation. Transmission zeros are generated at both sides of the passband by cross coupling between dielectric resonators or between feeding line structures and coupling line structures, resulting in high skirt selectivity.
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公开(公告)号：US20180145585A1
公开(公告)日：2018-05-24
申请号：US15570378
申请日：2015-07-21
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Guiping DU , Zhifei LIU , Tiansheng ZHU
CPC classification number: H02M1/4216 , H02M7/219 , H02M2001/4283 , Y02B70/126 , Y02P80/112
Abstract: The present invention discloses a hybrid transformation system based on three-phase voltage type PWM rectifier and multi-unit uncontrolled rectifier. The hybrid transformation system mainly consists of a three-phase reactor (L), a three-phase voltage type PWM rectifier module, an N-unit three-phase uncontrolled rectifier bridge module group, capacitors (C0-CN) and a DSP control circuit. An input end of the three-phase voltage type PWM rectifier module is in parallel connection with an input end of each three-phase uncontrolled rectifier bridge module. The three-phase voltage type PWM rectifier module may work in to situations, with load or without load, and the three-phase voltage type PWM rectifier module just does reactive power compensation when working without load. All modules of the three-phase uncontrolled rectifier bridge module group may work in to situations, with loads independently or all the outputs are in parallel connection and with a same load. The hybrid rectifier system has advantages such as unity input power factor, grid side current low harmonic, high power output, low cost, easy control, and etc.
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148.发明申请公开(公告)号：US20180123137A1
公开(公告)日：2018-05-03
申请号：US15560900
申请日：2015-12-29
Applicant: South China University of Technology
Inventor： Jianhuang Zeng , Muwu LI
IPC: H01M4/86 , C01B32/162 , H01M4/96 , H01M4/90 , C23C16/26
CPC classification number: H01M4/8657 , B82Y30/00 , B82Y40/00 , C01B32/16 , C01B32/162 , C01B2202/22 , C23C16/26 , H01M4/9041 , H01M4/9083 , H01M4/96 , Y10S977/742 , Y10S977/843 , Y10S977/948
Abstract: The present invention relates to the technical field of nanometer materials, which discloses a composite material of metal foam-carbon nanotube, the preparation method, and the use thereof. The preparation method of the present invention is: pre-treating a substrate of polyurethane sponge, then placing the pre-treated substrate of polyurethane sponge into a electroless plating solution containing metallic element to carry on a electroless plating reaction, and drying to obtain a metal foam catalyst on the polyurethane sponge substrate; then placing the metal foam catalyst into a tube furnace and raising the temperature to 500˜550° C.; introducing hydrogen and maintaining for 0.5 to 2 hour; then raising the temperature to 600˜800° C. and introducing an acetylenemixture gas as a carbon source, thus the target product is obtained as the carbon nanotubes growing on the surface of the metal foam catalyst by chemical vapor deposition. The prepared carbon nano-fibers or carbon nano-tubes are in situ formed on the transition metal catalyst surface. The metal/carbon interface is firmly bonded; the prepared carbon nano-fibers or carbon nano-tube are with good dispersity and their diameters are controllable and uniform.
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149.发明授权公开(公告)号：US09948463B2
公开(公告)日：2018-04-17
申请号：US15022824
申请日：2013-12-18
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Shaohua Tang , Wuqiang Shen
CPC classification number: H04L9/3093 , H04L9/006 , H04L9/3247
Abstract: Multivariate public key signature/verification system including a signature module and a verification module. The signature module contains a processor, first affine transformation inversion component, isomorphic inversion component, trapdoor component, isomorphic component, and second affine transformation inversion component. Corresponding computations are executed sequentially by the components on a message to be signed; solutions are generated after being processed by the trapdoor component; one solution is selected randomly and transmitted to the isomorphic component and second affine component for processing, and a signature generated is transmitted with the message to the processor. The verification module contains the processor and a public key transformation component. The signature is transmitted by the processor to the transformation component and substituted into each multivariate polynomial in a public key mapping. The processor judges whether the obtained data is equal to the message in a memory: if yes, the signature is valid, if not, it is invalid.
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公开(公告)号：US09948462B2
公开(公告)日：2018-04-17
申请号：US15022435
申请日：2014-12-30
Applicant: South China University of Technology
Inventor： Shaohua Tang , Jiahui Chen
CPC classification number: H04L9/30 , H04L9/0618 , H04L9/0643 , H04L9/3093
Abstract: A hypersphere-based multivariable public key signature/verification system includes signature and verification modules, wherein the signature module comprises a processor, an affine transformation inversion part I, a trap door part and an affine transformation inversion part II. Corresponding operations are sequentially executed on a message, one or more groups of solutions are produced after the processing of the trapdoor part, a group of solutions are randomly selected, then a signature is continuously produced by the various parts, and finally the signature, together with the message, is transmitted to the processor. The verification module comprises a processor and a public key transformation part, wherein the processor transmits a signature to the public key transformation part to execute an operation, and then judges whether the obtained data is equal to a message in a memory or not: if so, the signature is valid, otherwise the signature is invalid.
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