Patents Assigned to Xiamen University
  • Patent number: 12270910
    Abstract: Described herein are systems and methods for training machine learning models to generate three-dimensional (3D) motions based on light detection and ranging (LiDAR) point clouds. In various embodiments, a computing system can encode a machine learning model representing an object in a scene. The computing system can train the machine learning model using a dataset comprising synchronous LiDAR point clouds captured by monocular LiDAR sensors and ground-truth three-dimensional motions obtained from IMU devices. The machine learning model can be configured to generate a three-dimensional motion of the object based on an input of a plurality of point cloud frames captured by a monocular LiDAR sensor.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: April 8, 2025
    Assignees: Xiamen University, ShanghaiTech University
    Inventors: Cheng Wang, Jialian Li, Lan Xu, Chenglu Wen, Jingyi Yu
  • Patent number: 12232860
    Abstract: A method for fast high-resolution multi-parametric quantitative magnetic resonance imaging comprises: designing a fast high-resolution multiple overlapping-echo imaging pulse sequence; determining sampling parameters of the pulse sequence; constructing a deep neural network for reconstructing high-resolution multi-parametric quantitative magnetic resonance images; generating training samples of the deep neural network; using the training samples to train the deep neural network to obtain trained deep neural networks; scanning a real imaging object using the pulse sequence under the sampling parameters to obtain k-space data of the real imaging object; pre-processing the k-space data of the real imaging object to obtain image domain data of the real imaging object; and inputting the image domain data of the real imaging object into the trained deep neural networks for the reconstructing to obtain the high-resolution multi-parametric quantitative magnetic resonance images of the real imaging object.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: February 25, 2025
    Assignee: Xiamen University
    Inventors: Shuhui Cai, Wenhua Geng, Qizhi Yang, Congbo Cai, Zhong Chen
  • Patent number: 12230792
    Abstract: A supporter of lithium metal, a material of the supporter of lithium metal is at least one of copper, an alloy of the copper, nickel, or an alloy of the nickel, and a surface of the supporter of lithium metal comprises a lithiophilic surface.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: February 18, 2025
    Assignee: Xiamen University
    Inventors: BingWei Mao, Yu Gu, Hongyu Xu, Weiwei Wang, Jiawei Yan
  • Patent number: 12209910
    Abstract: The present disclosure provides a radio frequency tagging optical spectrometer, comprising: a dynamic dispersion device, the dynamic dispersion device receiving a beam comprising more than two wavelength components and being driven by driving radio frequency signals, and the dynamic dispersion device encoding the intensity of each wavelength component into the amplitude of a different beat radio frequency signal based on different driving radio frequency signals, wherein the beat frequency of the different beat radio frequency signal is equal to the frequency of the corresponding driving radio frequency signal; a single-channel photodetector for detecting the sum of beat radio frequency signals formed by adding all the beat radio frequency signals; and a processing unit for performing Fourier transform on the sum of the beat radio frequency signals to obtain a spectrum or an associated radio frequency spectrum by which the optical spectrum is obtained.
    Type: Grant
    Filed: January 2, 2023
    Date of Patent: January 28, 2025
    Assignee: Xiamen University
    Inventor: Quan Liu
  • Patent number: 12146042
    Abstract: The present disclosure discloses a method for preparing dual-sensitive cellulose-based aerogel. The DAC (Dialdehyde cellulose), the DAC/PDMAEMA (poly-2-(dimethylamino)ethyl methacrylate) copolymer, the DAC/PDMAEMA/PEI (Polyethylenimine) copolymer are serially prepared, was freeze-dried to obtain a product. The product is the dual-sensitive cellulose-based aerogel, a cumulative adsorption capacity of the dual-sensitive cellulose-based aerogel is 250 mg/g, and a cumulative release amount of the dual-sensitive cellulose-based aerogel in 0.05 mol/L NaH2PO4 (pH=3-8), 0.2% NaCl (pH<3), or NaOH (pH>8) is 63-90%.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: November 19, 2024
    Assignee: Xiamen University
    Inventors: Xianhai Zeng, Guihua Yan, Yong Sun, Xing Tang, Lu Lin, Tingzhou Lei
  • Patent number: 12115245
    Abstract: An anterior chamber perfusate for intraocular surgery and its use. The anterior chamber perfusate not only balances intraocular pressure, but also contains a certain amount of L-alanyl-L-glutamine (Ala-Gln).
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: October 15, 2024
    Assignee: Xiamen University
    Inventors: Cheng Li, Mengyi Jin, Ying Hong, Zuguo Liu
  • Publication number: 20240328946
    Abstract: The present disclosure provides a fluorescence analysis method for lithium ion determination using free-base phthalocyanine (FBPc) as a molecular probe, and relates to the technical field of fluorescent probes. The method includes the following steps: adding an alkaline organic medium separately into a plurality of reaction vessels, and adding a phthalocyanine organic solution having a same volume as that of the alkaline organic medium; adding lithium ion organic solutions with increasing concentrations in sequence; diluting an obtained reaction system, allowing to stand to conduct a reaction, scanning a fluorescence spectrum of the reaction system, and determining a relative fluorescence intensity at a fluorescence peak. A determination principle is that in organic media, especially an alkaline organic medium, lithium ions can react with the FBPc to emit strong red fluorescence, and generation of the fluorescence has the remarkable characteristics of ultra-sensitivity and high specificity.
    Type: Application
    Filed: October 13, 2022
    Publication date: October 3, 2024
    Applicant: Xiamen University
    Inventors: Donghui LI, Yan ZHANG, Ping HUANG, Yabin DENG
  • Patent number: 11952368
    Abstract: Provided are a fibroblast activation protein inhibitor (FAPI) dimer compound, an FAPI dimer-based positron emission tomography (PET) imaging agent for tumor diagnosis, and a preparation method and use thereof. An amphiphilic polyethylene glycol (PEG) chain and a dimerized structure of FAPI in the FAPI dimer compound with a structure shown in formula I can improve the in vivo kinetic properties of the compound and prolong a residence time of the compound in a tumor, thereby improving the uptake and imaging effects in the tumor. The accurate tumor diagnosis can be achieved by labeling the FAPI dimer compound with a diagnostic nuclide (68Ga), which has promising application prospects in PET imaging for diagnosis and in the preparation of a therapeutic nuclide (such as 177Lu or 90Y)-labeled drug for treating a FAP-?-expressing tumor.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: April 9, 2024
    Assignee: Xiamen University
    Inventors: Haojun Chen, Liang Zhao, Qin Lin, Kaili Fu, Yizhen Pang, Zhide Guo, Jianyang Fang, Long Sun, Hua Wu
  • Patent number: 11940268
    Abstract: The present disclosure discloses a contact angle measuring device, including a light source, a container, a photodetector, a bubble generating unit, and a processing unit. The container includes a first and a second side walls that are opposite. The first side wall is made of a light-transmitting material, the container is filled with a liquid with light transmission inside. The monochromatic light emitted by the light source passes through the first side wall and enters an interface between the first side wall and the liquid. The bubble generating unit is configured for generating a bubble that is in contact with an inner surface of the first side wall. The photodetector is configured for detecting light intensity distribution of the monochromatic light through the liquid.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: March 26, 2024
    Assignees: Xiamen University of Technology, Riccino (Xiamen) Optical Inc.
    Inventors: Dong Sun, Luming Song, Xianjian Zhou, Hongyi Lin, Hong Liu, Wenzhang Zhu, Haijun Lin
  • Patent number: 11865196
    Abstract: An engineered radioactive polymeric microsphere, and a preparation and application thereof. The preparation method includes: adding a styrene monomer and a disperser and/or a crosslinker into a medium, followed by feeding of nitrogen or helium and stirring to obtain a first reaction mixture; heating the first reaction mixture, and adding an initiator, followed by reaction under stirring at a constant temperature to obtain a second reaction mixture; subjecting the second reaction mixture to washing with ethanol and water, and vacuum drying to obtain a crude polymeric microsphere; subjecting the crude polymeric microsphere to radiation-induced graft polymerization with a functional monomer to obtain the functionalized polymeric microsphere; and exposing the functionalized polymeric microsphere to a radionuclide to prepare the engineered radioactive polymeric microsphere.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: January 9, 2024
    Assignees: Xiamen University, Shanghai University
    Inventors: Gang Liu, Xiao Xu, Hongjuan Ma, Zhenwen Zhao, Hu Chen, Pan He, Chao Liu, Chengchao Chu, Dong Li
  • Patent number: 11833760
    Abstract: A laser conformal manufacturing method of a flexible sensor comprises: obtaining morphology data of a curved surface, and constructing a Standard Triangle Language (STL) model of the curved surface; introducing into a 3D modeling software, and combining the curved surface with a clamper holder; manufacturing to obtain the clamper with the curved surface; coating material to be manufactured on a 3D curved surface of the clamper with the curved surface; positioning to a processing platform of a laser device; constructing a model of a pattern to be manufactured by laser based on the STL model of the curved surface, and constructing an STL model or a dwg model of the pattern to be manufactured; introducing into the laser device, turning on the laser device, and running a 3D dynamic focus system; repeating the steps 4-8, and stripping the flexible sensor from the 3D curved surface.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: December 5, 2023
    Assignee: Xiamen University
    Inventors: Wei Zhou, Rui Chen, Xinning Zhu, Tao Luo, Weisong Ling, Chiqian Xiao
  • Patent number: 11782111
    Abstract: A new method for reconstructing a full spectrum from under-sampled magnetic resonance spectrum data by using a deep learning network. First, the exponential function is used to generate a time-domain signal of the magnetic resonance spectrum, and a zero-filling time-domain signal is obtained after the under-sampled operation is completed in the time domain. The zero-filling time-domain signal and the full spectrum corresponding to the full sampling are combined to form a training data set. Then, a data verification convolutional neural network model is established for magnetic resonance spectrum reconstruction, where the training data set is used to train neural network parameters to form a trained neural network. Finally, the under-sampled magnetic resonance time-domain signal is input to the trained data verification convolutional neural network, and the full magnetic resonance spectrum is reconstructed.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: October 10, 2023
    Assignee: Xiamen University
    Inventor: Xiaobo Qu
  • Patent number: 11757538
    Abstract: A method for underwater acoustic communication includes steps of S1: capturing a synchronization signal using a cross-correlation operation; S2: performing time forward shifting and reversing processing and time backward shifting and reversing processing, respectively, on the synchronization signal to obtain a forward shifted time reversal coefficient and a backward shifted time reversal coefficient; S3: performing a convolution operation of the forward shifted time reversal coefficient and the backward shifted time reversal coefficient, respectively, with a subsequently captured information sequence to obtain a forward shifted time reversal output and a backward shifted time reversal output; S4: processing the forward shifted time reversal output and the backward shifted time reversal output, respectively, with a forward shift equalizer and a backward shift equalizer to obtain two sets of equalizer outputs; and S5: selecting one of the two sets of equalizer outputs with a smaller error for data decoding to o
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: September 12, 2023
    Assignee: Xiamen University
    Inventors: Feng Tong, Siyuan Zheng, Bin Li, Xiuling Cao
  • Patent number: 11702395
    Abstract: Bimetal oxide catalyst and methods, a method comprises: mixing and grinding to obtain a mixture comprising a manganese salt (a), at least one of other metal salt (b), and an additive (c), wherein the other metal salt comprises at least one of a copper salt, a cobalt salt, a cerium salt, an iron salt, or a nickel salt, and the additive comprises at least one of polyol or organic acid, and calcining the mixture to obtain the bimetal oxide catalyst.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: July 18, 2023
    Assignee: Xiamen University
    Inventors: Xing Tang, Huai Liu, Lu Lin, Xianhai Zeng, Yong Sun
  • Patent number: 11703820
    Abstract: The present disclosure discloses a monitoring management and control system based on panoramic big data comprising an imaging device, a credential of the imaging device, a memory, a networking device, and a processing unit. The imaging device is configured to detect a first object and determine an approximate location of the first object and a reliability value of the approximate location of the first object based on the credential of the imaging device, the memory, the networking device, and the processing unit.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: July 18, 2023
    Assignee: Xiamen University of Technology
    Inventors: Ying Ma, Shunzhi Zhu, Yu Sun, Junwen Lu, Keshou Wu
  • Patent number: 11650274
    Abstract: A method for acquiring nuclear magnetic resonance (NMR) phase-sensitive two-dimensional (2D) J-resolved spectrum by suppressing strong coupling spurious peaks, comprising: 1) placing a sample, collecting a conventional one-dimensional (1D) spectrum of the sample, and measuring a time width (pw) of a 90° pulse, wherein the conventional 1D spectrum provides J coupling information and chemical shift information of the sample; and 2) introducing a pulse sequence for suppressing strong coupling, setting parameters of a chirp sweep frequency pulse, a pure shift yielded by chirp excitation (PSYCHE) module, and a J sampling module, and collecting and saving data of a spectrum.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: May 16, 2023
    Assignee: Xiamen University
    Inventors: Yuqing Huang, Zhong Chen, Cunyuan Gao, Haolin Zhan
  • Patent number: 11597809
    Abstract: A method for preparing an aerogel comprising nano attapulgite and phenolic aldehyde and a method for preparing abrasion-resistant vehicle tire. 80-100 weight distributions of rubber, 3-8 weight distributions of SiO2.nH2O, 3-6 weight distributions of an anti-aging agent, 3-4 weight distributions of a heat stabilizer, 3-5 weight distributions of a compatibilizing agent, and 3-12 weight distributions of the aerogel comprising the nano attapulgite and the phenolic aldehyde is selected as a raw material of the abrasion-resistant rubber material to prepare rubber composite material for the abrasion-resistant vehicle tire.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: March 7, 2023
    Assignee: Xiamen University
    Inventors: Lizong Dai, Xiaohui Liu, Hesheng Cao, Guorong Chen, Weiang Luo, Conghui Yuan, Birong Zeng, Yiting Xu
  • Patent number: 11512120
    Abstract: The present disclosure discloses an antimicrobial peptide Scyreprocin of Scylla paramamosain and a method thereof, wherein an amino acid sequence of the antimicrobial peptide Scyreprocin comprises a sequence shown in SEQ ID NO 01, and the antimicrobial peptide is expressed and purified by using genetic engineering technology. The recombinant antimicrobial peptide Scyreprocin has advantages of wide antimicrobial spectrum, good antimicrobial effect, and rapid germicidal rate, shows great application significance, and has good application in preparation of antimicrobial agents. The recombinant antimicrobial peptide Scyreprocin has no cytotoxicity to mouse hepatocytes AML12, human liver cells L02, and can be safely used for medical treatment or can be used as a feed composition.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: November 29, 2022
    Assignee: Xiamen University
    Inventors: Kejian Wang, Ying Yang, Fangyi Chen, Yanchao Chen, Huiyun Chen, Hui Peng
  • Patent number: 11505684
    Abstract: A vehicle tire rubber composite material, raw materials of the vehicle tire rubber composite material comprise the following components by weight: 30-40 weight distributions of solution-polymerized styrene-butadiene rubber, 35-55 weight distributions of rare earth butadiene rubber, 10-30 weight distributions of phenyl modified natural rubber, 5-14 weight distributions of polyurethane elastomer, 3-9 weight distributions of acetylene carbon black, 2-5 weight distributions of multifunctional abrasion-resistant flame retardant Cu@HNT@MoS2-PZE, 3-6 weight distributions of elastic fiber, 1-3 weight distributions of heat stabilizer, 2-3 weight distributions of silane coupling agent, 1-2.5 weight distributions of anti-scorching agent, 1-2.5 weight distributions of turpentine oil, and 4-6 weight distributions of accelerator.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: November 22, 2022
    Assignees: Xiamen University, Cheng Shin Tire (Xiamen) Co., Ltd.
    Inventors: Lizong Dai, Jing Hong, Hesheng Cao, Guorong Chen, Weiang Luo, Conghui Yuan, Birong Zeng, Yiting Xu
  • Patent number: 11426459
    Abstract: The disclosure relates to a mutant of hemagglutinin protein of H3N2 subtype influenza virus and use thereof. In addition, the disclosure also relates to a pharmaceutical composition (e.g., a vaccine) comprising the mutant, a method for preparing the mutant, and a method of using the mutant for prevention and/or treatment of an infection of influenza virus and/or a disease (e.g., an influenza) caused by the infection.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: August 30, 2022
    Assignee: Xiamen University
    Inventors: Yixin Chen, Chenguang Shen, Junyu Chen, Mengya Zhang, Limin Zhang, Ningshao Xia