Patents Assigned to Polytechnic University
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Publication number: 20180162747Abstract: The present invention provides a method for generating hydroxyl radical and removing organic pollutants in water by utilizing an organic membrane. The inventive method generates hydroxyl radical by adopting a nitrocellulose membrane as a photocatalytic material, placing the nitrocellulose membrane in water, illuminating with the sun or a sunlamp having a wavelength above 280 nm as a light source, and causing the nitrocellulose membrane to undergo a photochemical reaction at the membrane surface, and the generation rate of hydroxyl radical can be achieved by adjusting the surface area of the membrane and a light intensity. The generated hydroxyl radical can remove phenol, bisphenol A, thiamphenicol and other typical organic pollutants in water very well.Type: ApplicationFiled: June 25, 2016Publication date: June 14, 2018Applicant: HeNan Polytechnic UniversityInventors: Chao TAI, Shao Dong ZHANG, Tong Qian ZHAO, Dang Yu SONG, Lei FENG, Yu Xiang MAO, Yong An QI, Guo Cheng ZHANG, Li Jun ZHANG, Juan WANG
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Publication number: 20180161231Abstract: A method for retarding or reversing progression of myopia of a viewer contains the steps of using an immersive or non-immersive device to create a plurality of image planes in the eye of the viewer. While an image plane is located on the retina, at least one image plane is not on the retina, thereby generating myopic defocus. Immersive and non-immersive devices and systems for such a method are also described.Type: ApplicationFiled: December 11, 2017Publication date: June 14, 2018Applicant: THE HONG KONG POLYTECHNIC UNIVERSITYInventors: Yan Yin Tse, Siu Yin Lam, Chi Ho To
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Patent number: 9988466Abstract: Disclosed in the present invention is a benzocrown ether graft polymer with a lithium isotopic separation effect and a preparation method thereof. The polymer is a benzocrown ether graft polymer formed by the linkage of chemical bonds, which takes the main chain of a polymer containing chloromethyl group, chloroformyl group or hydroxyl group as main chain, and takes a benzocrown ether as pendant group.Type: GrantFiled: February 2, 2015Date of Patent: June 5, 2018Assignee: TIANJIN POLYTECHNIC UNIVERSITYInventors: Jianxin Li, Feng Yan, Benqiao He, Hong Wang
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Patent number: 9951039Abstract: Filamenting temperature-sensitive mutant Z (FtsZ) protein plays a crucial role in the bacterial cell division machinery and is a validated drug target for antibacterial agents. The present invention relates to FtsZ-interacting compounds that possess a 2,4,6-trisubstituted pyrimidine scaffold. Some of these compounds possess potent anti-staphylococcal properties and potent antibacterial activities against clinically isolated MRSA strains. Compounds have been identified to exhibit low spontaneous frequency of resistance, low toxicity as well as the ability to rescue G. mellonella larvae infected with lethal dose of the MRSA ATCC 43300 strain. Characterization by saturation transfer difference NMR, light scattering assay and GTPase hydrolysis assay with purified S. aureus FtsZ protein verified the interaction of 2,4,6-trisubstituted pyrimidine with the FtsZ protein, further confirmed by observations of iconic filamentous cell phenotype and mislocalization of the Z-ring formation.Type: GrantFiled: September 29, 2016Date of Patent: April 24, 2018Assignees: THE HONG KONG POLYTECHNIC UNIVERSITY, THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITYInventors: Kwok-yin Wong, Tak-Hang Chan, Kin-Fai Chan
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Patent number: 9920084Abstract: The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II) processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.Type: GrantFiled: August 23, 2012Date of Patent: March 20, 2018Assignees: The Royal Institution for the Advancement of Learning/McGill University, Hong Kong Polytechnic UniversityInventors: Masad J. Damha, Matthew Hassler, Tak-Hang Chan, Mallikarjuna Reddy Nandyala, Robert Alexander Donga
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Publication number: 20180068773Abstract: An apparatus for negative stiffness including one or more solenoids for generating a magnetic field. A moveable magnet is moveable relative to the one or more solenoids through the one or more solenoids. The one or more solenoids are configurable to generate an at least substantially quadratic magnetic field about an equilibrium position at which the resultant force on the moveable magnet is zero. Depending on the respective pole orientation, generating a quadratic magnetic field about an equilibrium position provides a substantially linear negative stiffness characteristic with displacement.Type: ApplicationFiled: September 7, 2016Publication date: March 8, 2018Applicant: The Hong Kong Polytechnic UniversityInventors: Songye Zhu, Xiang Shi
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Patent number: 9876807Abstract: It is described a network attack detection method. A topology analysis on network is conducted to obtain a probing path set containing at least one probing path. A first probing path contained in the probing path set is probed by using a probing pattern to obtain a performance metric of the first probing path. It is determined whether the first probing path is subjected to network attack according to the performance metric and a control performance metric.Type: GrantFiled: April 16, 2015Date of Patent: January 23, 2018Assignees: The Hong Kong Polytechnic University, Tencent Technology (Shenzhen) Company LimitedInventors: Lei Xue, Zhiwei Liu, Xianneng Zou, Jingang Hou, Xiapu Luo, Edmond W. W Chan, Pei Tu, Yuru Shao
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Patent number: 9863824Abstract: A resistance-voltage (R-V) transformation system used in dynamic strain measurement for a structure is provided. The system has single-channel (SC) circuit units each for producing a voltage corresponding to a resistance of a sensing element of a structural-strain sensing network. Each SC circuit unit has a R-V transformation module for converting the resistance into the voltage, a band-pass filter module for filtering the R-V transformation module output after a direct-current bias therein is removed, and a high-gain amplification module for amplifying the filter output. The band-pass filter module is configured such that an unwanted low-frequency component induced by resistance drift of the sensing element is removed while allowing a guided-wave signal component to pass through.Type: GrantFiled: September 19, 2016Date of Patent: January 9, 2018Assignee: The Hong Kong Polytechnic UniversityInventors: Zhongqing Su, Limin Zhou, Lei Qiu, Hao Xu, Zhihui Zeng, Menglong Liu
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Publication number: 20180006538Abstract: An electric motor comprising a stator and a rotor. The stator has at least one resonant circuit and the rotor has at least one resonant circuit rotatable with the rotor relative to at least one stator resonant circuit such that at least one rotor resonant circuit is angularly displaceable relative to at least one stator resonant circuit. At least one stator resonant circuit and at least one rotor resonant circuit are configured to have at least substantially the same self-resonant frequency. The electric motor uses magnetic resonant coupling between one or more stator resonant circuits and one or more rotor resonant circuits to produce usable torque.Type: ApplicationFiled: June 30, 2016Publication date: January 4, 2018Applicant: The Hong Kong Polytechnic UniversityInventors: Ming LIU, Hon Lung CHAN, Ka Wing CHAN, Junwei LIU, Wenzheng XU
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Patent number: 9846118Abstract: The present invention provides a gas measuring method based on photothermal effect in hollow-core optical fiber comprising: filling a target gas into the core of a hollow-core optical fiber; coupling a probe light and a periodically modulated pump light into the hollow-core optical fiber; absorbing the pump light by the target gas resulting in the periodic modulation of the phase of the probe light; demodulating the phase modulation information of the probe light to obtain the concentration of the target gas, wherein the pump laser is wavelength and/or amplitude modulated. In the present invention, two lasers including a pump laser and a probe laser are used for the measurement, this approach is simple and practical.Type: GrantFiled: April 13, 2016Date of Patent: December 19, 2017Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY SHENZHEN RESEARCH INSTITUTEInventors: Wei Jin, Yingchun Cao, Fan Yang, Hoi Lut Ho
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Patent number: 9829722Abstract: A method for retarding the progression of myopia in a human eye, the method comprising: providing (41) a concentric annular multi-zone refractive lens including: at least one correcting zone of optical power for correcting (42) refractive error, and at least one defocusing zone for projecting (43) at least one non-homogenous defocused image in front of at least a part of retina to inhibit myopic eye growth, the at least one defocusing zone having at least one less negative power; wherein the correcting and defocusing zones are alternated (45) in the lens and the zones are connected (46) to each other through integrated progressive transition curves.Type: GrantFiled: December 23, 2014Date of Patent: November 28, 2017Assignee: The Hong Kong Polytechnic UniversityInventors: Yan Yin Tse, Chi Ho To, Siu Yin Lam
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Patent number: 9825650Abstract: This invention provides a cyclically-coupled (CC-) quasi-cyclic (QC-) low-density parity-check (LDPC) code and its decoder architecture. The essence of the invention is to introduce the convolutional nature to a plurality of individual block codes internally so as to form a resultant block code with a prolonged code length while slightly increasing the hardware complexity in decoder realization. The CC-QC-LDPC code is formed by cyclically coupling a plurality of sub-codes each being a QC-LDPC code such that overlapping of some variable nodes between two consecutive sub-codes results. The decoder comprises plural sub-decoders each configured to decode the channel messages for one sub-code. The sub-decoders are arranged in a ring shape such that an individual sub-decoder is configured to communicate edge messages with two neighboring sub-decoders adjacent to said individual sub-decoder in the decoding of the channel messages.Type: GrantFiled: August 13, 2015Date of Patent: November 21, 2017Assignee: The Hong Kong Polytechnic UniversityInventors: Chiu-Wing Sham, Jianfeng Fan, Wai Man Tam, Qing Lu, Chung Ming Lau
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Publication number: 20170310128Abstract: A voltage balancing circuit is applied to a power supply system. The power supply system comprises N power storage devices. The voltage balancing circuit comprises: N switches, N capacitors and a controller; the N switches are respectively connected to the N serial power storage devices; the N switches are respectively connected to the first terminals of the N capacitors; the second terminals of the N capacitors are connected to a common neutral line; the controller is connected to the N switches through a control line to control the switching of the N switches. The voltage balancing circuit avoids power loss when balancing the voltage of a plurality of serial power storage devices, and is small in size and low-cost, and balances voltage quickly.Type: ApplicationFiled: June 2, 2015Publication date: October 26, 2017Applicant: THE HONG KONG POLYTECHNIC UNIVERSITYInventors: Ka Wai Eric Cheng, Yuanmao Ye, Xiangdang Xue
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Patent number: 9789134Abstract: The invention relates to the medicine, namely to an agent for reducing the cholesterol and triglycerides in the blood plasma. The agent claimed comprises a nanocomposite that is a carbon-containing nanoparticles coated with the organic alkyl functional groups representing the residuals —C4H9, —C6H11, —C8H15, —C10H21, —C16H33, —C18H35. These groups are deposited by the covalent modification using diazonium salts of the general formula XC6H4N2+Y?, where X is the alkyl residual —C4H9, —C6H11, —C8H15, —C10H21, —C16H33, or C18H35, Y is the anion HSO4?, Cl?, BF4? or TsO?. The invention provides an effective reduction of cholesterol and triglyceride presented in the blood plasma.Type: GrantFiled: April 8, 2016Date of Patent: October 17, 2017Assignees: FEDERAL STATE BUDGETARY SCIENTIFIC INSTITUTION “RESEARCH INSTITUTE FOR CARDIOLOGY”, NATIONAL RESEARCH TOMSK POLYTECHNIC UNIVERSITY, LIMITED LIABILITY COMPANY “NANOCOR”Inventors: Shamil′ D. Akhmedov, Sergej A. Afanasiev, Victor D. Filimonov, Pavel S. Postnikov, Marina E. Trusova, Rostislav S. Karpov
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Patent number: 9787098Abstract: An energy storage system (ESS) includes a battery pack, a power converter, a battery management system (BMS) configured to control and monitor, in real time, the battery pack, a load power controller coupled to the battery pack and an external power source, connected to loads, and an integrated controller configured to control an operation of each component, determine an exclusive supply initiation time based on energy management schedule information including the exclusive supply initiation time, an exclusive supply termination time, and power supply timing information, control power to be supplied to the loads exclusively using power of the battery pack at the exclusive supply initiation time, and, when a current residual charge amount of the battery pack is at least one residual charge amount in the power supply timing information, control power supply to one of the loads set to correspond to the residual charge amount to be cut.Type: GrantFiled: February 4, 2016Date of Patent: October 10, 2017Assignee: Korean Polytechnic University Industry Academic Cooperation FoundationInventors: Jinku Choi, Chang-Woo Lee
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Patent number: 9754731Abstract: A method of producing an electrode of a dye-sensitized solar cell includes dispersing semiconductor nanoparticles on a transparent electrically conductive substrate, dispersing semiconductor nanofibers on the semiconductor nanoparticle layer, adsorbing onto all sides of the semiconductor nanofibers a first light absorption material, thereby sensitizing the semiconductor nanofibers, wherein the light absorption material has a first light absorption bandwidth, and depositing a second light absorption material in contact with and forming respective shells on the respective semiconductor nanofibers on which the first light absorption material is adsorbed, wherein the second light absorption material has a second light absorption bandwidth complementary to the first light absorption bandwidth.Type: GrantFiled: August 25, 2016Date of Patent: September 5, 2017Assignee: The Hong Kong Polytechnic UniversityInventors: Wallace Woon-fong Leung, Lijun Yang
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Patent number: 9734165Abstract: The present invention provides a new method and a device for the contactless human identification using biometrics images. The present invention develops a robust feature extraction algorithm to recover three-dimensional (3D) shape information from biometrics images. Further, it provides significantly improved performance than what is possible from the state-of-art methods, adding practicality for real applications on mobile platform, smartphones, and also as add-on system for conventional fingerprint system. The present invention's unique advantages are based on its computational simplicity, efficient matching and requiring least storage. Experiments were conducted to confirm very high accuracy and reliability on a number of biometric modalities including iris, palmprint, and finger knuckle images.Type: GrantFiled: July 14, 2015Date of Patent: August 15, 2017Assignee: The Hong Kong Polytechnic UniversityInventors: Ajay Kumar, Qian Zheng
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Prodrug of green tea epigallocatechin-3-gallate (Pro-EGCG) for use in the treatment of endometriosis
Patent number: 9713603Abstract: Method of treating endometriosis and related indications, comprising the administration of Pro-EGCG, a synthetic and derivative product of epigallocatechin-3-gallate [(?)-EGCG]. Use of Pro-EGCG in the manufacture of a medicament for treating endometriosis and related indications. Pro-EGCG for use in the treatment of endometriosis and related indications.Type: GrantFiled: August 20, 2013Date of Patent: July 25, 2017Assignees: The Hong Kong Polytechnic University, The Chinese University of Hong KongInventors: Tak-Hang Chan, Chi-Chiu Wang -
Patent number: 9697308Abstract: A method for generating an EMF model includes establishing a time-domain finite data model associated with an electric device representing the electric device in the time-domain; utilizing the time domain finite data model, determining excitations representing an electrical characteristic of an electrical components of the electric device; and generating an EMF model by processing the excitations with a transformation routine determining an approximate representation of an EMF generated by the electric device. A system for generating the EMF model includes a modelling module establish a time-domain finite data model associated with the electric device and d representing the electric device in the time-domain. The modelling module utilizes the time domain finite data model to determine excitations representing an electrical characteristic of an electrical component of the electric device.Type: GrantFiled: April 12, 2013Date of Patent: July 4, 2017Assignee: The Hong Kong Polytechnic University Innovation and Technology Development OfficeInventors: Weinong Fu, Xiu Zhang, Siu-Iau Ho
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Patent number: 9694350Abstract: This invention provides a catalyst comprising a new form of ZnFe2O4 spinel nanoparticles, and a method for preparing same. The catalyst is useful for catalyzing the esterification of fatty acids or transesterification of triglycerides, wherein the reaction rate and conversion can be enhanced by free fatty acids.Type: GrantFiled: March 23, 2016Date of Patent: July 4, 2017Assignee: The Hong Kong Polytechnic UniversityInventors: Ka Fu Yung, Wing Tak Wong, Tsz Lung Kwong