Patents Assigned to Polytechnic University
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Patent number: 12377414Abstract: A microfluidic device containing an inlet, a microchannel in fluid communication with the inlet, and a plurality of outlets in fluid communication with the microchannel. The microchannel contains a loop; or from about 1 loop to about 50 loops; or from about 2 loops to about 25 loops; or from about 5 loops to about 15 loops. A method for detecting an infected cell may employ the microfluidic device.Type: GrantFiled: February 17, 2022Date of Patent: August 5, 2025Assignees: City University of Hong Kong, The Hong Kong Polytechnic UniversityInventors: Bee Luan Khoo, Song Lin Chua, Junchen Liao
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Patent number: 12378208Abstract: Provided herein are oseltamivir analogs useful for the treatment and prevention of viral infections, pharmaceutical compositions comprising the same and methods preparation and use thereof.Type: GrantFiled: June 23, 2020Date of Patent: August 5, 2025Assignees: The Hong Kong Polytechnic University, The Chinese University of Hong KongInventors: Cong Ma, Xiao Yang, Jiqing Ye, Paul Kay-Sheung Chan, Wan Yi Chan
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Publication number: 20250183698Abstract: Disclosed in the present application is an energy management method for solar freezer trucks, the solar freezer truck includes a photo-voltaic (PV) module, a first battery, a freezer compressor, an engine generator, and an external power adapter connected by an energy management unit, and the energy management method includes obtaining an output power of the PV module; and switching, by the energy management unit, power paths to the freezer compressor according to the output power of the PV module.Type: ApplicationFiled: December 5, 2024Publication date: June 5, 2025Applicant: The Hong Kong Polytechnic UniversityInventors: Ka Wai Eric Cheng, Xiangdang Xue
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Publication number: 20250177924Abstract: An in-situ repair method for the surface of polyamide (PA) membrane after the destruction of oxidizing substances is provided. Lysozyme solution is mixed with tris (2-carboxyethyl) phosphine (TCEP) buffer solution, and the PA membrane to be repaired is immersed in the mixed solution, after being taken out, the PA membrane to be repaired is rinsed, and the nano-protein coating with uniform changes in pore size, charge density and thickness is obtained on the surface of the PA membrane to be repaired. Then the amine solution modification is used, the surface of the nano-protein coating is grafted by amines, and the repaired PA membrane is obtained. The PA membrane to be repaired is immersed in a mixed solution for 1-24 h. The PA membrane repaired by nano-coating has a water permeability of 11.4 Lm?2L?1bar?1 (LMH/bar) and a rejection rate of 98.5% to magnesium chloride for the nanofiltration (NF) membrane after strong chlorine destruction.Type: ApplicationFiled: October 15, 2024Publication date: June 5, 2025Applicant: Northwestern Polytechnical UniversityInventors: Miao TIAN, Qiuyu ZHANG, Huan WANG, Haiqing HUI, Wen HAO, Wen WANG
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Publication number: 20250162466Abstract: Disclosed are an energy management method, system, computer device and readable storage medium. The method includes: obtaining a first current output power and a previous output power of a first energy supplier; obtaining a current power change rate of the first energy supplier according to the first current output power and the previous output power; obtaining a first reference power of the first energy supplier according to the first current output power, the previous output power and the current power change rate; obtaining a second current output power of a second energy supplier; obtaining a second reference power of the second energy supplier according to the first current output power, the second current output power and the first reference power; obtaining current flow rates of first and second gas and a current furnace temperature; and obtaining a reference flow rate of the first gas and a reference furnace temperature.Type: ApplicationFiled: October 31, 2024Publication date: May 22, 2025Applicant: The Hong Kong Polytechnic UniversityInventors: Ka Wai Eric Cheng, Xiangdang Xue, Molly Meng-Jung Li, Chiu Shek Wong, Shu Ping Lau
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Publication number: 20250156700Abstract: The embodiments relate to the technical field of optoelectronic devices and to a circular polarization-resolved photonic artificial synapse (CPL-resolved PAS) device and a preparation method therefor. The CPL-resolved PAS device includes a heterostructure based on a helical chiral perovskite (H-PVK) and a single-wall carbon nanotube (SWNT). The heterostructure includes a H-PVK layer and a SWNT layer. The H-PVK layer and the SWNT layer contact and overlap, and a heterojunction is formed between the H-PVK layer and the SWNT layer. Using the chiral optoelectronic response characteristics of the H-PVK and the carrier conduction characteristics of the SWNT, the heterostructure is able to achieve nano-ampere-level distinguishable photocurrent response for circular-polarization UV light with different chirality. The CPL-resolved PAS device obtained by the present disclosure has good stability and can be prepared on a large scale.Type: ApplicationFiled: November 15, 2023Publication date: May 15, 2025Applicant: The Hong Kong Polytechnic University Shenzhen Reseach InstituteInventors: Mingjie LI, Qi Liu
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Publication number: 20250150758Abstract: A first-order differential microphone array (FODMA) system with a steerable beamformer. The system includes a plurality (M) of microphones located on a substantially planar platform, the plurality of microphones comprising a first subset (M_1) of microphones and a second subset (M_2) of microphones, and a processing device, communicatively coupled to the plurality of microphones, configured to construct a first sub-beamformer based on the first sub-set (M_1) of microphones and a target beampattern at a steering angle ?, wherein the first sub-beamformer is characterized according to a first-order cosine (cardioid) first sub-beampattern, construct a second sub-beamformer based on the second sub-set (M_2) of the microphones and the target beampattern at the steering angle ?, wherein the second sub-beamformer is characterized according to a first-order sinusoidal (dipole) second sub-beampattern, and generate the steerable beamformer based on the first sub-beamformer and the second sub-beamformer.Type: ApplicationFiled: January 9, 2025Publication date: May 8, 2025Applicant: Northwestern Polytechnical UniversityInventors: Xin LENG, Jingdong CHEN
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Patent number: 12278012Abstract: A machine learning method predicts whether a specified subject is at high risk of developing cognitive impairment based upon a data record for said specified subject, and a method of training a dual neural network for such. These methods may work by automatically classifying said subject into a first class associated with a first predicted risk of cognitive impairment or a second class associated with a second predicted risk of cognitive impairment. Subject records are obtained comprising a first set of measured data and a second set of data including results for two or more health assessment questionnaires; and a label indicating that the subject belongs to the first class or second class. These records are used to train first and second neural networks, and in the latter method these trained networks are able to predict whether a specified subject should belong to said first class or second class.Type: GrantFiled: March 9, 2021Date of Patent: April 15, 2025Assignee: The Hong Kong Polytechnic UniversityInventors: Kup Sze Choi, Xiao Shen
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Patent number: 12258865Abstract: A coal and gas outburst monitoring device includes the insertion and anchoring assembly, and the pump drainage and monitoring mechanism; the insertion and anchoring assembly is vertically inserted and distributed on the sidewall of surrounding rock of coal mine roadway, and the insertion and anchoring assembly can monitor the stress change data in the sidewall of surrounding rock in real time; the pump drainage and monitoring mechanism is erected within the coal mine roadway, and the pump drainage and monitoring mechanism can cooperate with the insertion and anchoring assembly to perform the gas pump drainage monitoring for the sidewall of surrounding rock of goaf, and to obtain the gas seepage monitoring data in the surface layer and the inner layer of sidewall of surrounding rock. Thus, comparing with the database mechanism, the accurate and advanced predictions for the gas outburst can be made.Type: GrantFiled: August 16, 2024Date of Patent: March 25, 2025Assignee: Henan Polytechnic UniversityInventors: Xu Chen, Hongtu Zhang, Zhongyi Liu, Peiliang Ren, Mingguo Hua, Chenhui Luo, Nan Li, Xianjie Hao, Duzhou Li, Wei He, Zhuang Li, Jinhua Li, Shibiao Sun, Shilin Zhang, Zhen Li, Gongda Wang, Weiyong Lu
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Publication number: 20250091737Abstract: The invention provides an aircraft attitude tracking control method, system and computer equipment, which belongs to the field of aircraft attitude control, comprising: obtaining aircraft operating parameters and establishing a kinematic model of the attitude tracking error of the aircraft. A specified time performance constraint function and attitude error boundary based on the hyperbolic cosecant composite function are then constructed. A constrained attitude error conversion function and its inverse function are utilized to obtain an unconstrained attitude tracking conversion error. Virtual control instructions are solved in kinematics using a sigmoid tracking differentiator to obtain a numerical derivative. The control moment in the dynamics is solved and the complete form of the attitude tracking algorithm is given for the aircraft attitude tracking system. This method provides a computationally efficient means of controlling aircraft to ensure that error convergence is achieved within a preset time.Type: ApplicationFiled: December 5, 2024Publication date: March 20, 2025Applicant: Shenzhen Polytechnic UniversityInventors: Xuan Peng, Shan Lu, Zhijiang Lou, Sen Xie, Fengli Dai
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Publication number: 20250066188Abstract: The present disclosure discloses a MEMS grating and a fabrication method. The MEMS grating includes a substrate layer, an insulation layer and a deformable layer. The deformable layer is made of a continuous conductive material, the insulation layer is distributed along transverse intervals on the substrate layer, and a cavity is formed between every two adjacent insulation layers. The deformable layer includes movable grating bars and fixed grating bars. The fixed grating bars are fixedly connected with the insulation layer, and the movable grating bars correspond to the cavities. A plurality of through holes are formed in the movable grating bars. During wet etching, the movable grating bars generate upwards buckling deformation, which increase an initial gap between the movable grating bars and a substrate. An adhesion effect caused by the wet etching is eliminated, which reduces permanent failures caused by the adhesion effect.Type: ApplicationFiled: November 8, 2023Publication date: February 27, 2025Applicant: Northwestern Polytechnical UniversityInventors: Yongqian Li, Datai Hui, Dayong Qiao
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Patent number: 12234732Abstract: The present disclosure provides a monitoring and warning device for rock burst in coal mine, which is configured for monitoring a rock mass in a drill hole, the monitoring and warning device for rock burst in coal mine includes: an integration rod, radial adjustment components, a plurality of bases, and a measuring instrument, the integration rod is extended into the drill hole; the radial adjustment components are provided on the integration rod, and have a plurality of radial adjustment ends; a plurality of bases are correspondingly provided in the radial adjustment ends, and the bases are further connected with attachment components through elastic components, and the attachment components are embedded with first strain gauges; the measuring instrument is rotatably provided in the integration rod, and is used to measure the distance between the measuring instrument and the attachment components.Type: GrantFiled: August 6, 2024Date of Patent: February 25, 2025Assignee: Henan Polytechnic UniversityInventors: Hongtu Zhang, Mian Wang, Zhibo Zhang, Chao Guo, Xiangyang Wang, Fenggang Zhang, Dong Chen, Pan Chen, Duzhou Li, Liuqun Du, Lianbo Huang, Jinhua Li, Junfang Li, He Sun, Zhen Li, Gongda Wang, Xu Chen, Weiyong Lu
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Patent number: 12205298Abstract: Disclosed in the present disclosure is a method for processing remote sensing images by fusing elevation information.Type: GrantFiled: August 14, 2024Date of Patent: January 21, 2025Assignees: Henan Polytechnic University, China Nuclear Industry Survey Design & Research Co.,Ltd.Inventors: Zongze Zhao, Changwei Miao, Yu Zhang, Cheng Wang, Chao Ma, Guangyuan He, Xiaofei Chen, Hongtao Wang, Weibing Du, Shanming Huang, Shixuan Li, Xiaoqian Cheng, Leiku Yang
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Patent number: 12203850Abstract: The invention concerns an apparatus for scanning the optical properties of materials using a stationary sample stage and a dual-axis rotational system. The apparatus includes motors for azimuthal and polar rotation, supporting an optical system with adjustable lenses and filters to collect data from multiple angles. This design is particularly advantageous for photo-excited materials using linearly polarized sources, as it maintains static pump polarization, eliminating the need for additional motors or optical elements to align the pump with the sample's rotation. This avoids complications with halfwave plates and broadband retarders, which may not preserve linear polarization across all wavelengths. The modular system accommodates various detectors, ensuring versatility while enabling precise, high-resolution spectral imaging.Type: GrantFiled: September 19, 2024Date of Patent: January 21, 2025Assignee: Florida Polytechnic UniversityInventors: Nathan Dawson, Hengzhou Liu, Anthony Fiorito, III
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Patent number: 12187069Abstract: A multi-posture bedside writing pen includes a pen shell, a pen tip holder, a fiber rod and a fiber ink storage tube. The fiber ink storage tube is connected with the pen shell and located in the pen shell. The pen tip holder is connected with one end of the pen shell. The pen tip holder is axially provided with a through hole. The fiber rod is inserted into the through hole, one end of the fiber rod is exposed outside the pen tip holder, and an other end of the fiber rod is inserted into the fiber ink storage tube. A first gap is provided between the pen tip holder and the fiber ink storage tube.Type: GrantFiled: September 11, 2023Date of Patent: January 7, 2025Assignee: Ningbo Institute of Northwestern Polytechnical UniversityInventors: Minqing Wang, Qian Wang
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Patent number: 12186803Abstract: Disclosed are a nickel-based superalloy formed by selective laser melting and a preparation method thereof. In the method, CrFeNb alloy powder is used as a grain refiner, and its element composition is within the composition range of a nickel-based superalloy powder to ensure that the prepared nickel-based superalloy has the same element composition with the original alloy; the grain size in the nickel-based superalloy could be refined by the addition of CrFeNb alloy powder, such that the anisotropic columnar grain structure in the alloy is transformed to equiaxed grain structure, thereby improving mechanical properties of the alloy.Type: GrantFiled: March 3, 2022Date of Patent: January 7, 2025Assignee: Northwestern Polytechnical UniversityInventors: Haijun Su, Yong Zhao, Meng Wang, Jun Zhang, Min Guo, Lin Liu, Hengzhi Fu
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Publication number: 20240380004Abstract: A preparation method of a flame-retardant ultrathin PEO-based solid electrolyte is disclosed. The method includes the following steps: preparing a CN support layer; synthesizing a flame retardant-loaded multifunctional filler: HNT@TMP; mixing and stirring PEO, LiTFSI, and HNT@TMP in a certain ratio in acetonitrile to obtain PEO-based solid electrolyte slurry; coating both sides of the CN support layer obtained in step S1 with the PEO-based solid electrolyte slurry obtained in step S3, and performing drying; and performing hot pressing to obtain a PEO-based solid electrolyte.Type: ApplicationFiled: January 11, 2024Publication date: November 14, 2024Applicant: Northwestern Polytechnical UniversityInventors: Yue MA, Ting LIU
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Publication number: 20240335301Abstract: A combined testbench type and walking type compliant exoskeleton system quickly and efficiently converts from a fixed testbench configuration to a mobile orthosis configuration. The addition of a series elastic actuator allows the combined testbench type and walking type compliant exoskeleton system to have a higher level of safe physical human-robot interaction and safety for users with spasticity or tremor. Alternate embodiments incorporating a combination of the rigid and compliant joints, allowing the combination of a swing test and enhancement of a user's strength for walking or other movement is also disclosed.Type: ApplicationFiled: April 7, 2023Publication date: October 10, 2024Applicant: The Hong Kong Polytechnic UniversityInventors: Long TENG, Lin LIU
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Publication number: 20240302325Abstract: A non-invasive liquid detection method based on acoustic wave features and an apparatus thereof, the method includes: collecting acoustic waves penetrating a liquid to be tested and extracting acoustic absorption-transmission curve features from the acoustic waves to generate a liquid fingerprint, the acoustic absorption-transmission curve features represent a ratio of an energy of an acoustic signal penetrating the liquid to an energy of an acoustic signal emitted across a plurality of frequencies; inputting the liquid fingerprint into a trained neural network model for detection processing, and outputting detection results. The neural network model is trained with a plurality of sets of data, and each set of data includes: acoustic absorption-transmission curve features, and a label identifying a feature that meets a detection requirement in the acoustic absorption-transmission curve features.Type: ApplicationFiled: December 14, 2023Publication date: September 12, 2024Applicant: The Hong Kong Polytechnic University Shenzhen Research InstituteInventors: Juncen ZHU, Jiannong CAO, Yanni YANG
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Patent number: 12085962Abstract: Disclosed is a nighttime cooperative positioning method based on an unmanned aerial vehicle (UAV) group, falling within the technical field of aircraft navigation and positioning. According to the present disclosure, the cooperative visual positioning and the collision warning for UAVs are realized by means of light colors of the UAVs, respective two-dimensional turntable cameras and a communication topology network, without adding additional equipment and without relying on an external signal source, avoiding external interference. Compared with the positioning method in a conventional manner, in the present disclosure, the system is effectively simplified, and the cooperative positioning among the interiors of a UAV cluster can be realized relatively simply and at a low cost to maintain the formation of the UAV group.Type: GrantFiled: January 3, 2024Date of Patent: September 10, 2024Assignee: Northwestern Polytechnical UniversityInventors: Zhen Wang, Tao Zhang, Dengxiu Yu, Chao Gao, Xuelong Li