Patents Assigned to Tianjin University
  • Patent number: 12131384
    Abstract: The invention pertains to optimal scheduling and trading technology for microgrid systems, specifically focusing on a real-time peer-to-peer energy trading method involving time-varying virtual energy storage. This method predicts environmental information within a specified time domain and incorporates historical transaction data into virtual energy storage modeling and real-time energy trading. During the supply and demand energy extraction phase, it quantitatively extracts supply and demand energy and the marginal cost for trading using an autonomous energy management model for prosumers. In the transaction price optimization phase, it optimizes the transaction price based on historical data to maximize prosumers' income. The distributed transaction decision optimization method, utilizing a continuous double auction, enhances transaction matching decisions to maximize prosumers' income and accommodate multi-transaction preference levels.
    Type: Grant
    Filed: May 27, 2024
    Date of Patent: October 29, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Xiaolong Jin, Xiaoyu Wang, Hongjie Jia, Yunfei Mu, Xiaodan Yu, Xiandong Xu
  • Patent number: 12129426
    Abstract: Biomimetic nacre-toughness cement slurry based on in-situ polymerization of a fluid loss additive, a preparation method and an application thereof are provided. The preparation method includes: dissolving 2-acrylamido-2-methylpropane sulfonic acid monomer and carboxylic acid monomer in deionized water, adjusting pH to 5.5-6.5, then adding an acrylamide monomer, and uniformly stirring to obtain a monomer solution; adding an initiator and a catalyst into the monomer solution, and then stirring to obtain a pre-polymerization solution; adding cement particles into the pre-polymerization solution under low-speed stirring, and then performing high-speed stirring to obtain the biomimetic nacre-toughness cement slurry. The obtained cement slurry can optimize a microstructure of cement while possessing a well capacity for controlling fluid loss, improve deformation ability and toughness of a cement sheath, and effectively improve brittleness defect of the cement sheath.
    Type: Grant
    Filed: May 12, 2024
    Date of Patent: October 29, 2024
    Assignee: Tianjin University
    Inventors: Jintang Guo, Ming Liu, Miaomiao Hu
  • Patent number: 12130022
    Abstract: The present disclosure discloses a heating system coupling a passive phase change energy storage sunlight room with an air source heat pump. The heating system includes a passive phase change energy storage sunlight room (7), phase change heat storage units, a to-be-heated room (8), and an air source heat pump air heater arranged between the passive phase change energy storage sunlight room (7) and the to-be-heated room (8), wherein each phase change heat storage unit (11) consists of a plurality of phase change heat storage modules (1). An opening in the front part of each phase change heat storage module faces an interior of the passive phase change energy storage sunlight room, and the phase change heat storage modules located on the top are spliced transversely, and the vent in the top of each phase change heat storage module is connected with the ventilation port of the room.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 29, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Jing Zhao, Dehan Liu, Shilei Lyu
  • Patent number: 12127789
    Abstract: The present disclosure relates to a subtle cornea deformation identification method and device based on a pixel-level corneal biomechanical parameter, including the following steps: step 1, sampling and analyzing a dynamic video of corneal stress deformation in a historical database, and calculating pixel-level data; and step 2, configuring an ensemble classifier based on a sampling result and detecting a local change in corneal biomechanics, thus identifying a subtle cornea deformation. The present disclosure has high measurement accuracy and is capable of detecting a local subtle biomechanical change.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: October 29, 2024
    Assignees: TIANJIN EYE HOSPITAL, WENZHOU UNIVERSITY OF TECHNOLOGY
    Inventors: Yan Wang, Xuan Chen, Zuoping Tan, Riwei Wang
  • Publication number: 20240351615
    Abstract: Disclosed is a method for cooperative decision-making on lane-changing behavior of an autonomous vehicle based on Bayesian game. On one hand, intelligent networked road perception and big data analysis are utilized to infer statistical characteristics of driving styles of a side vehicle under different time periods and traffic flow states, serving as prior predictions of driving styles of the side vehicle. On the other hand, the dynamic interaction behaviors during lane-changing processes of a specified vehicle and the side vehicle are continuously observed and posterior corrections are made to the driving styles of the side vehicle. When the specified vehicle generates a lane-changing willingness, probabilities of driving styles are iteratively predicted using Bayesian game principles. Comprehensive consideration of style and willingness probabilities yields a lane-changing probability of the specified vehicle.
    Type: Application
    Filed: June 25, 2024
    Publication date: October 24, 2024
    Applicant: TIANJIN UNIVERSITY
    Inventors: Kang SONG, Fan GUO, Hui XIE
  • Patent number: 12123378
    Abstract: A cylinder gas recirculation system device of an internal combustion engine based on pressure differential driving is provided, the overall device includes a recirculation intake and exhaust system and a gas storage system. An intake control valve on a cylinder block, a surge tank, and an exhaust control valve on the cylinder block are sequentially connected to form a gas recirculation subsystem of the cylinder block of the internal combustion engine. Two adjacent subsystems are in communication through an intake pipe. Positions of intake and exhaust pipelines may be anywhere between the top and bottom dead centers of a piston in a cylinder, and intake and exhaust valves of the gas recirculation may share the same valve. Different valves may also be used, and the intake and exhaust pipelines of the gas recirculation are arranged on the same side of the cylinder in double layers.
    Type: Grant
    Filed: July 30, 2024
    Date of Patent: October 22, 2024
    Assignee: Tianjin University
    Inventors: Tianyou Wang, Tianlong Lu, Zhen Lu
  • Patent number: 12122855
    Abstract: A method for extracting pullulan polysaccharide from high-viscosity fermentation broth includes following steps: (1) removing cells from the fermentation broth; (2) removing proteins; (3) decolorizing by macroporous resin adsorption; (4) removing ions by ultrafiltration; and (5) drying, crushing and packaging. In the extraction method of the present application, by using natural polymer bioflocculant chitosan, the high-viscosity fermentation broth can be processed without dilution and addition of filter aids and organic solvents for alcohol precipitation, which reduces the pressure of subsequent decolorization, properly recycles the cell proteins, and avoids the potential hazard of the organic solvents. The method can obtain high-purity pullulan polysaccharide, improving the product yield and quality, reducing solid waste, reducing the production cost, and achieving a safe, efficient, continuous and automated production process.
    Type: Grant
    Filed: April 5, 2024
    Date of Patent: October 22, 2024
    Assignee: TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Changsheng Qiao, Ganggang Cheng, Liang Lu, Tingbin Zhao, Zhenhai Li
  • Patent number: 12125119
    Abstract: The present disclosure discloses a cross-modal image-watermark joint generation and detection device and method thereof. The device includes a multimodal encoder, an image-watermark feature co-embedding module, an image-watermark feature fusion module, an up-sampling generator, a non-cooperative game decoupling module configured to decouple an unwatermarked image and a reconstructed watermark from a composite image through two decoders by developing allocation strategies according to a non-cooperative game theory and a Shannon information theory; a strategy allocation module configured to set an composite image discriminator, keeping the consistency between the composite image and input text by multi-specification down-sampling convolution kernels and set the objective functions to constrain watermark reconstruction and unwatermarked image decoding; and a post-processing attack module configured to simulate various attacks for ensuring the robustness of watermarks.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: October 22, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Anan Liu, Guokai Zhang, Lanjun Wang, Ning Xu, Yuting Su, Yongdong Zhang
  • Publication number: 20240344954
    Abstract: The present disclosure provides a technology field of caking of crystal particles, and in particular relates to a method for predicting a critical caking cycle of crystal particle. The method includes: establishing a CHS crystal bridge growth model database of a crystal particle with a same type of crystal particle to be predicted firstly, selecting existed data in the corresponding CHS crystal bridge growth model database based on an equivalent particle radius, a stored ambient temperature, and an environmental high and low humidity cycle condition of the crystal particle to be predicted, respectively, and calculating the critical caking cycle according to experience calculation equations, wherein a result obtained by calculation is a predicted critical caking cycle of the crystal particle to be predicted.
    Type: Application
    Filed: May 7, 2024
    Publication date: October 17, 2024
    Applicants: TIANJIN UNIVERSITY, ZHEJIANG HUAKANG PHARMACEUTICAL CO., LTD., ZHEJIANG INSTITUTE OF TIANJIN UNIVERSITY (SHAOXING)
    Inventors: Junbo GONG, Mian LI, Mingyang CHEN, Wulong YANG, Jiahui LI, Mingxuan LI, Qiang WU, Baohong HOU, Qiuxiang YIN
  • Patent number: 12119778
    Abstract: The present invention discloses a FPR system of DFIG, comprising a DC chopper circuit made up of a fully-controlled power switching device and a dump resistor first connected in series and then connected to the positive and negative poles of the DC-link; the fully-controlled power switching device is driven by a power switching device driver; the power switching device driver comprises a first inverting adder, a first PI controller and a PWM modem; the positive and negative input ends of the first inverting adder receive the real-time DC-link voltage signal and its threshold value respectively, and the output end of the first inverting adder is connected to the input end of the first PI controller; the output end of the first PI controller is connected to the input end of the PWM modem; the PWM modem outputs the pulse signal to the control end of the fully-controlled power switching device.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: October 15, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Jiebei Zhu, Zhaoshun Deng, Feng Li
  • Patent number: 12103112
    Abstract: The present disclosure relates to a method and system for predicting the critical floating time of a reinforcing phase. According to the method, a particle concentration processing model, a half-life processing model, an agglomeration kinetics model, and a floating time processing model are combined to obtain the critical floating time of a reinforcing phase particle according to an initial particle size of the reinforcing phase particle, a density of the reinforcing phase particle, a mass fraction of the reinforcing phase of a composite soldering material, and a density of the composite soldering material. The method and system can accurately predict the critical floating time of the reinforcing phase particle.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: October 1, 2024
    Assignee: Tianjin University
    Inventors: Yongdian Han, Yuan Li, Lianyong Xu, Lei Zhao, Kangda Hao, Hongyang Jing
  • Patent number: 12106482
    Abstract: A learning-based active surface model for medical image segmentation uses a method including: (a) data generation: obtaining medical images and associated ground truths, and splitting the sample images into a training set and a testing set; (b) raw segmentation: constructing a surface initialization network, parameters of the network trained by images and labels in the training set; (c) surface initialization: segmenting the images by the surface initialization network, and generating the point cloud data as the initial surface from the segmentation; (d) fine segmentation: constructing the surface evolution network, the parameters of the network trained by the initial surface obtained in step (c); (e) surface evolution: deforming the initial surface points along the offsets to obtain the predicted surface, the offsets presenting the prediction of the surface evolution network; (f) surface reconstruction: reconstructing the 3D volumes from the set of predicted surface points set to obtain the final segmentatio
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: October 1, 2024
    Assignee: Tianjin University
    Inventors: Yuping Duan, Yueyun Liu, Wen Xu
  • Publication number: 20240304846
    Abstract: A plant-based electrochemical device for ecological restoration of a polluted river or lake and a using method thereof are provided. The plant-based electrochemical device includes a sediment, where a plurality of first electrodes are provided in the sediment, the plurality of first electrodes each include a plurality of staggered cylinders, an outer side of each of the plurality of cylinders is provided with an electrically-conductive layer, and the electrically-conductive layer is electrically connected to an external power supply; a plurality of upright posts are symmetrically fixed in the sediment, the plurality of upright posts are fixedly connected to a second electrode through a fixing mechanism, and the second electrode is located at a water surface and is electrically connected to the external power supply; and a plurality of ecological landscape floating islands are provided on the water surface.
    Type: Application
    Filed: May 4, 2023
    Publication date: September 12, 2024
    Applicants: JIMEI UNIVERSITY, CCCC SDC (FUJIAN) COMMUNICATION CONSTRUCTION ENGINEERING CO., LTD, TIANJIN UNIVERSITY
    Inventors: Jiarui QI, Xiaohua WANG, Jinfeng ZHANG, Xiao LI, Jiayu CHEN, Lingling XU, Fulai ZHUANG, Chenghong WU, Chen YE, Qichen LIN
  • Patent number: 12083560
    Abstract: A sorting-based garbage classification method and a sorting-based garbage classification device are provided. The method utilizes quantitative features of domestic garbage components and adopts bubble sort algorithm to build a sorting model to sort and classify domestic garbage. The method is more in line with technical requirements of downstream incineration, pyrolysis gasification and so on, and has the features of high fault tolerance rate and high operation efficiency, and is characterized by controllable environmental impact, flexible product form and high energy utilization efficiency in the operation process.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: September 10, 2024
    Assignees: TIANJIN UNIVERSITY OF COMMERCE, TIANJIN UNIVERSITY
    Inventors: Guanyi Chen, Junyu Tao, Rui Liang, Beibei Yan, Yunan Sun, Zhanjun Cheng, Jian Li, Lan Mu, Yude Gu, Xiaoling Hao
  • Patent number: 12077842
    Abstract: Mo doped AlCrSiN/Mo self-lubricating films and a preparation method thereof are provided. The AlCrSiN/Mo self-lubricating films are prepared by doping Mo element into the AlCrSiN films, and the Mo content in the resulted films is in the range of 0.3-6.3 at. %. The films are prepared on the substrates by high power impulse magnetron sputtering (HiPIMS) and pulsed DC magnetron sputtering hybrid coating technology. The prepared AlCrSiN/Mo self-lubricating films possess high hardness, good toughness, excellent antifriction characteristics and good chemical stability.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: September 3, 2024
    Assignee: TIANJIN UNIVERSITY OF TECHNOLOGY AND EDUCATION (TEACHER DEVELOPMENT CENTER OF CHINA VOCATIONAL TRAINING AND GUIDANCE)
    Inventors: Tiegang Wang, Deqiang Meng, Yanmei Liu, Bing Yan, Renren Xu, Zhaoxing Yin
  • Patent number: 12078527
    Abstract: The present invention discloses a differential COTDR distributed acoustic sensing device based on heterogeneous double-sideband chirped-pulses of the invention, comprising a light source (1), a 1×2 polarization-maintaining optical-fiber coupler (2), a dual Mach-Zehnder electro-optical modulator (3), an arbitrary waveform generator (4), a first low noise microwave amplifier (5), a second low noise microwave amplifier (6), an electro-optical modulator bias control panel (7), a 1×2 optical-fiber coupler (8), an erbium-doped optical-fiber amplifier (9), an optical-fiber filter (10), an optical-fiber circulator (11), a sensing optical fiber (12), a tricyclic polarization controller (13), a 2×2 optical-fiber coupler (14), a balanced photoelectric detector (15), a data acquisition card (16) and a processing unit (17).
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: September 3, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Junfeng Jiang, Tiegen Liu, Zhe Ma, Shuang Wang, Kun Liu, Zhenyang Ding, Xuezhi Zhang, Wenjie Chen, Guanhua Liang
  • Patent number: 12077446
    Abstract: A catalytic synthesis method, a device and a system for ammonia synthesis through orderly regulation of the electronic domain of nitrogen are provided. Nitrogen and hydrogen are used as raw materials, and a multi-composition material with magnetic material as active site is used as a catalyst, thermal field, magnetic field and electric field or thermal field and electromagnetic field are applied to nitrogen, hydrogen and catalyst at the same time. The invention adopts the catalytic synthesis method, device and system for the mild ammonia synthesis at low temperature and low pressure conditions through orderly regulation of the electronic domain of nitrogen.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: September 3, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Baoshun Zhang, Yifu Yu, Bin Zhang
  • Patent number: 12071387
    Abstract: The present disclosure relates to a thermal coupling method for preparing ethylene by ethanol dehydration and device thereof. The device includes an ethanol dehydration reaction system, a quenching compression system, an alkaline washing system, a molecular sieve drying system and an ethylene purification and propylene refrigeration cycle system; ethanol dehydration reaction products in the ethanol dehydration reaction system serve as a heat source for preheating, vaporization and superheating of a raw material of ethanol; tower bottoms of an evaporation tower in the quenching compression system serve as a heat source for preheating of a feed stream of the evaporation tower and heating of an overhead gas of a quenching tower; products of ethylene in the alkaline washing system serve as a cold source for cooling of crude ethylene.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: August 27, 2024
    Assignee: TIANJIN UNIVERSITY
    Inventors: Minhua Zhang, Hao Gong, He Dong, Feng Shi, Fang Meng, Yingzhe Yu, Haoxi Jiang
  • Patent number: 12065682
    Abstract: The present invention belongs to the bioengineering field, and relates to a method for fermentation production of L-theanine by using an Escherichia coli genetically engineered bacterium. The engineered bacterium is obtained by serving a strain as an original strain, wherein the strain is obtained after performing a single copy of T7RNAP, a dual copy of gmas, xylR knockout, and sucCD knockout on an Escherichia coli W3110 genome, and by integrating genes xfp, pta, acs, gltA, and ppc, and knocking out ackA on the genome. The present invention has a high yield, and stable production performance; after 20-25 h, L-theanine has a titer of 75-80 g/L, and the yield is up to 52-55%. The fermentation broth is purified by membrane separation in combination with a cation-anion resin series technique. Moreover, the one-step crystallization yield is 72.3% and the L-theanine final product has a purity of 99%.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: August 20, 2024
    Assignees: Henan Julong Biological Engineering Co., Ltd, Tianjin University of Science and Technology
    Inventors: Xiaoguang Fan, Xiaodong Liu, Jing Li, Ning Chen, Bochao Liu, Shuai Liu, Chaochao Sun, Yongchao Liu, Jiajia Teng, Mengtao Zhang, Yuanqing Ji, Yuhang Zhou, Qingyang Xu
  • Publication number: 20240270621
    Abstract: The present disclosure provides a treatment method for oily sludge and a method for soil remediation. The treatment method for oily sludge includes: mixing the oily sludge with target biochar uniformly according to a first preset mass ratio, and conducting catalytic pyrolysis at a first preset temperature to achieve efficient removal of petroleum hydrocarbons, to obtain a pyrolysis residue used for soil remediation. In the present disclosure, the method realizes resource utilization and harmless utilization of the pyrolysis residue.
    Type: Application
    Filed: October 17, 2022
    Publication date: August 15, 2024
    Applicants: Tianjin University, Tianjin University of Commerce
    Inventors: Guanyi Chen, Fawei Lin, Zhanjun Cheng, Jiantao Li, Beibei Yan, Xiaoqiang Cui, Ning Li