Patents Assigned to KUNMING UNIVERSITY
  • Patent number: 12348036
    Abstract: This application presents an adaptive arc suppression method for ground faults in distribution networks, merging active and passive relay protection strategies. The method proceeds as follows: based on collected ground parameters, the fault phase is identified; compensation current is calculated from the fault's electromotive force, ground leakage resistance, and ground capacitance; current is injected at the neutral point according to the compensation current; finally, the arc suppression scheme is executed based on the zero-sequence voltage of the network's busbars. This approach incorporates both voltage- and current-based methods, addressing the limitation of fixed operation scenarios in traditional arc suppression methods. By quickly adapting to various fault situations, this method ensures an efficient and prompt response tailored to specific scenario requirements.
    Type: Grant
    Filed: November 13, 2024
    Date of Patent: July 1, 2025
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongchun Shu, Jun Dong, Yuan Gao, Yutao Tang, Yiming Han, Kaiqing Tian
  • Patent number: 12270897
    Abstract: Disclosed is a time series InSAR tropospheric delay correction method for relieving atmospheric seasonal oscillation, so as to relieve the seasonal oscillation deviation caused by tropospheric delay. This method is based on the temporal and spatial characteristics of atmospheric delay. Firstly, based on the ERA-5 atmospheric grid data covering the study area, the ZTD negative exponential vertical profile function model is established. Fourier series function is introduced to establish the time series model for ? and ZTDr, Finally, according to the radar incidence angle parameters, the delay is changed from zenith direction to radar line of sight direction.
    Type: Grant
    Filed: August 5, 2024
    Date of Patent: April 8, 2025
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiaoqing Zuo, Shipeng Guo, Weiwei Song, Yongfa Li, Jihong Zhang, Daming Zhu, Cheng Huang, Zhuohui Xiao, Menghua Li, Sumin Li, Qingwang Wang
  • Patent number: 12258351
    Abstract: A sesquiterpenoid derivative and use thereof in preparing a broad-spectrum antiviral drug provided. The sesquiterpenoid derivative can stimulate heterogeneous nuclear ribonucleoprotein A2/B1, activate the cell signal pathway of TANK-binding kinase 1-interferon regulatory factor 3, and increase the expression and secretion of endogenous type I interferon. As a result, it can inhibiting various viruses and can be used as a broad-spectrum antiviral drug for preventing or treating various viral infectious diseases and symptoms, including Covid-19, vesicular stomatitis virus VSV-G, AIDS virus, hepatitis C virus, Japanese encephalitis virus, influenza virus, poliovirus, Coxsackie virus, dengue virus, rotavirus, tobacco mosaic virus, measles virus, mumps virus, Ebola virus, Marburg virus, herpes virus and adenovirus.
    Type: Grant
    Filed: April 2, 2024
    Date of Patent: March 25, 2025
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Min Xu, Shaoxing Dai
  • Patent number: 12230799
    Abstract: A method for preparing a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material is provided, and the method includes the following steps: the carbon nanotubes are modified by a dielectric barrier plasma device; the modified carbon nanotubes are mixed and stirred with a sodiophilic metal salt to obtain a precursor slurry; the precursor slurry is dried, placed in a tube furnace after drying, and heated by introducing a reducing gas to react, thereby obtaining a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material. The electrode material prepared by the method has a stable structure, excellent electrical conductivity, and excellent sodium affinity, and can be applied to anode-free sodium metal battery electrode materials. The entire preparation process is controllable, the synthesis cycle is short, and the operation is simple.
    Type: Grant
    Filed: August 27, 2024
    Date of Patent: February 18, 2025
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Pan Liu, Minjie Hou, Da Zhang, Bin Yang
  • Publication number: 20250030078
    Abstract: A recycling method of waste lithium manganate cathode materials is provided. The recycling method includes: firstly, mixing the waste lithium manganate cathode materials with sulfuric acid for hydrothermal reaction, to obtain manganese dioxide and washing solution; then reacting the washing solution with ammonium bicarbonate, to obtain manganese carbonate and lithium sulfate; and mixing the manganese dioxide, lithium sulfate and lithium hydroxide monohydrate, then performing a sintering treatment, washing and a tempering treatment in sequence, to obtain recycled lithium manganate cathode materials. The recycling method can obtain manganese dioxide, spherical manganese carbonate and lithium sulfate by adjusting the reaction temperature and reaction time, realizing the effective recovery of manganese and lithium.
    Type: Application
    Filed: July 31, 2024
    Publication date: January 23, 2025
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Peng DONG, Yannan ZHANG, Bao ZHANG, Yingjie ZHANG
  • Patent number: 12180431
    Abstract: Disclosed is a phosphorus coal gasification reaction device for combined production of yellow phosphorus and syngas, including a stock bin, a mineral aggregate lock hopper, a phosphorous coal gasification reactor, a slag quench chamber and a slag lock hopper. In the phosphorous coal gasification reactor, a drying zone, a dry distillation zone, a combustion zone, a phosphate rock reduction zone, and a slag bath zone are formed from top to bottom. A gas product outlet communicating with the phosphorous coal gasification reactor is installed at a top of the phosphorous coal gasification reactor, two to eight fuel burners are symmetrically arranged on the combustion zone, and an auxiliary burner communicating with the slag bath zone is arranged at the bottom of the slag bath zone. The reactor device can improve the production capacity of the yellow phosphorus, and reduce the emission of CO2.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: December 31, 2024
    Assignees: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, ZHEJIANG CHENGTAI CHEMICAL MACHINERY CO., LTD.
    Inventors: Yi Mei, Chi Zhai, Yunxiang Nie, Jinlin He, Huili Liang
  • Patent number: 12103857
    Abstract: A rapid preparation method of transition metal borides includes steps of: using a tungsten rod as the cathode, and a block mixture of boron powder and metal oxide as the anode, the block mixture and the tungsten rod are placed in an plasma device; the plasma device is evacuated, and then filled with a buffer gas and an electric arc is started to obtain a transition metal boride. The present disclosure adopts the direct current arc plasma method with the advantages of simple operation, low cost, environmental friendliness and controllable reaction atmosphere to prepare the transition metal boride, the preparation process is simple, the preparation process is fast, and the environment will not be affected.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: October 1, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Junxi Li, Da Zhang, Zhipeng Xie, Wenhui Ma, Bin Yang
  • Publication number: 20240263314
    Abstract: A UAV surface coating includes at least a bonding layer, an antioxidant layer, an oxygen-blocking propagation layer and a heat-insulation cooling layer. The coating is fabricated on a surface of a UAV machine body or covers on the surface of the UAV machine body through a composite material matrix. The UAV machine body is made of lightweight material, and the composite material matrix includes a resin-based composite matrix and a ceramic-based composite matrix. Wherein, a thickness of the bonding layer is from 20 ?m to 200 ?m, a thickness of the oxygen-blocking propagation layer is from 20 ?m to 200 ?m, and a thickness of the heat-insulation cooling layer is from 80 ?m to 1000 ?m.
    Type: Application
    Filed: April 17, 2024
    Publication date: August 8, 2024
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jing FENG, Lin CHEN, Xiaoyu CHONG, Jianyu LI, Jianbo SONG, Luyang ZHANG, Jiankun WANG
  • Patent number: 12051776
    Abstract: A method for preparing a sodium super ionic conductor solid electrolyte by low-dimensional crystallization belongs to a field of energy materials. The method is based on the theory of negative ion coordination polyhedron growth unit, and uses low-temperature plasma as a protective gas of a spray drying equipment. While evaporating the solvent in a sodium super ionic conductor solid electrolyte precursor slurry, plasma active groups modify the particle surface of the sodium super ionic conductor solid electrolyte precursor particles in-situ. A free space dimension of crystal growth in the crystallization process is reduced, and directional growth of crystals in the solid phase sintering process is induced. Secondly, the dispersion stability of the sodium super ionic conductor solid electrolyte precursor particles is improved.
    Type: Grant
    Filed: December 13, 2023
    Date of Patent: July 30, 2024
    Assignees: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, JIANGSU FENGCHI CARBON BASED NEW MATERIAL RESEARCH INSTITUTE CO., LTD
    Inventors: Feng Liang, Minjie Hou, Da Zhang, Tao Zhang, Sunzu Xiang, Wenlong Jiang, Baoqiang Xu, Bin Yang
  • Patent number: 11981569
    Abstract: A method includes the following steps: a first step: the material containing heteroatom and graphite powder are mixed for a preset time by grinding, and the molar ratio of heteroatom to carbon atom is 1%-10%, then the heteroatom precursors are obtained; a second contact step: the heteroatom precursor is filled into a graphite rod with holes and compacted, then the graphite rod is dried for a preset time to obtain a plasma anode and using a DC arc plasma device to prepare the graphite anode into heteroatom-doped CNHs; a third contact step: the heteroatom-doped CNHs are dispersed in a reducing solution, a platinum salt is added to stir evenly, the reduction reaction is carried out by heating and stirring, and after centrifugation, washing and drying, a catalyst with platinum loading is obtained.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: May 14, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Da Zhang
  • Publication number: 20240139809
    Abstract: An apparatus and method for preparing high-purity spherical magnesium and/or high-purity magnesium powder are provided. The apparatus includes a vertical furnace body, a heating zone, and a condensing zone, where a periphery of the condensing zone is provided with a first thermal insulation device and a second thermal insulation device sequentially from bottom to top, and each of the first thermal insulation device and the second thermal insulation device is removably arranged; the periphery of the condensing zone is further provided with a liquid cooling device; a gas inlet and a gas outlet are formed in the condensing zone; and an inner wall of the condensing zone is provided with an arrangement structure configured to arrange a collection device. A heating temperature of a material and condensation conditions in the condensing zone are controlled to make an evaporated magnesium vapor condensed on the collection device in the condensing zone.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yang TIAN, Dong LIANG, Bin YANG, Baoqiang XU, Dachun LIU, Fei WANG, Yifu LI, Wenlong JIANG, Yong DENG, Jian WU, Lipeng WANG
  • Patent number: 11958789
    Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.
    Type: Grant
    Filed: December 12, 2023
    Date of Patent: April 16, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhi-quan Yang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Yong-shun Han, Muhammad Asif Khan, Jian-bin Xie, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu, Qi-jun Jia, Cheng-yin Ye, Gang Li
  • Patent number: 11946845
    Abstract: A method for determining a three-dimensional tortuosity of a loose and broken rock-soil mass, includes the following steps: a particle grading curve of the loose and broken rock-soil mass is obtained by utilizing a particle size analysis, and followed by calculating an equivalent particle size and an average particle size; a porosity of the loose and broken rock-soil mass is obtained by utilizing a moisture content test, a density test, and a specific gravity test; the three-dimensional tortuosity of the loose and broken rock-soil mass is obtained by utilizing the equivalent particle size, the average particle size and the porosity of the loose and broken rock-soil mass. The method has the advantages of simple logic, accuracy and reliability, simple and fast parameter determination, and has high practical value and promotion value in the field of environmental protection and ecological restoration technology.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: April 2, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhi-quan Yang, Jia-jun Zhang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Muhammad Asif Khan, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu
  • Publication number: 20230416145
    Abstract: The present disclosure relates to a visible light-catalyzed translucent concrete, and a preparation method and use thereof. The preparation method includes: extracting an iron oxide from a copper slag, mixing the iron oxide with TiO2 to obtain a photocatalyst, and then mixing the photocatalyst with an additive to obtain a photocatalytic slurry; preparing a concrete slurry using the copper slag after iron extraction as an aggregate; and pouring the photocatalytic slurry, the concrete slurry, and the photocatalytic slurry in sequence into a mold pre-laid with an optical fiber, to obtain the visible light-catalyzed translucent concrete. In the visible light-catalyzed translucent concrete, iron in the copper slag is used as a part of raw materials of the photocatalyst, and the copper slag after iron extraction is used as an aggregate to replace natural sand and gravel. This solves environmental pollutions caused by the copper slag and realizes resource utilization.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 28, 2023
    Applicants: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, YUNNAN BLUE ENVIRONMENTAL ENGINEERING TECH CO., LTD., JIANGXI BLUE ENVIRONMENTAL ENGINEERING TECH CO., LTD.
    Inventors: Kai LI, Xin SUN, Chunxue WANG, Jie YANG, Fei WANG, Chi WANG, Yixing MA, Yuan LI, Lei SHI, Siyang LI
  • Patent number: 11850659
    Abstract: The present disclosure discloses a high-entropy alloy powder for laser cladding and a use method thereof. The alloy powder is CoCrFeMnNiCx, and x has a value of 0.1-0.15. The specific method includes: subjecting a 45 steel substrate to surface pretreatment, mixing the weighed CoCrFeMnNi high-entropy alloy powder with different content of a nano-C powder uniformly and pre-placed on the pre-treated substrate surface to form a prefabricated layer, then placing the prefabricated layer at 80-90° C. for constant temperature treatment for 8-12 h, and under a protective atmosphere, subjecting the cladding powder to laser cladding on the surface of the 45 steel. The method of the present disclosure prepares a CoCrFeMnNiCx high-entropy alloy coating with performance superior to the CoCrFeMnNi high-entropy alloy coating.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: December 26, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongxi Liu, Jingzhou Liu, Xuanhong Hao, Yingnan Di, Jianquan Lin
  • Patent number: 11827518
    Abstract: The present disclosure relates to a method for production of CNHs composite material. The method includes the following steps: a first step: the silicon particles and graphite powder are mixed for a preset time by planetary ball mill device, and the weight ratio of silicon element to carbon element is 10-40%, then the Si/C precursor is obtained; a second contact step: the Si/C precursor is pressed into a precursor block, then using precursor block to the CNHs composite material by a DC arc plasma device.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: November 28, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Da Zhang, Long Ma, Yichang Liu, Junxi Li
  • Patent number: 11817552
    Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.
    Type: Grant
    Filed: November 24, 2022
    Date of Patent: November 14, 2023
    Assignees: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, JIANGSU FENGCHI CARBON-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.
    Inventors: Feng Liang, Minjie Hou, Da Zhang, Tao Zhang, Sunzu Xiang, Wenlong Jiang, Baoqiang Xu, Bin Yang
  • Patent number: 11801552
    Abstract: Disclosed is a device for continuous treatment of materials containing volatile components, which belongs to the field of pyrometallurgical equipment. The device includes a feeding unit, a heating unit, a slag raking unit and a slag collecting unit. The feeding unit is configured to feed the materials with a push rod or in a spiral mode. The heating unit is provided with a square furnace body, and a first slag raking port is provided in the lower part of the furnace body. The slag collecting unit is provided with a slag discharging port at the lower portion thereof, is provided with a slag smashing port at the sidewall thereof, and is provided with a viewing port at the top thereof. The slag collecting unit and the heating unit are connected through a pipeline, thus achieving the pressure balance of the whole device during operation.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: October 31, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Baoqiang Xu, Tengteng Shi, Bin Yang, Wenlong Jiang, Yang Tian, Lingxin Kong, Jinyang Zhao, Fei Wang
  • Patent number: 11790166
    Abstract: A quality assessment method for automatic annotation of speech data is provided and includes: building a base rule-base of automatically annotated speech data based on quality key indicators; reading automatically annotated speech data to be detected, and performing quality detection on the automatically annotated speech data to be detected according to the quality key indicators to thereby complete quality measurement; updating an automatically annotated speech dataset according to a result of the quality measurement; and importing the automatically annotated speech dataset after the updating into the base rule-base. The shortcomings of using traditional quality assessment methods for data annotation in automatic machine annotations can be overcome, and it can play a very positive supporting role in promoting the development of ethnic minority speech intelligence.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: October 17, 2023
    Assignee: KUNMING UNIVERSITY
    Inventors: Jun He, Caiqing Zhang, Fei Deng, Shikai Shen, Yifang Zhou, Weihao Yue
  • Patent number: 11733146
    Abstract: A method for determining a column-hemispherical permeation radius with time-varying property of power-law cement grout and tortuosity of rock and soil mass is provided, including: acquiring a porosity ? of rock and soil mass and a corresponding permeation coefficient K by geotechnical tests, measuring a groundwater pressure P0 at a grouting point and determining tortuosity ? of rock and soil mass; acquiring an initial consistency coefficient c0, a rheological index n and a time-varying property coefficient k of power-law cement grout with a designed water to cement ratio by rheological tests, and determining the viscosity of water ?w; acquiring grouting parameters, including a grouting pressure P1, grouting time t, a number m of grouting holes of a side surface of a grouting pipe and a grouting hole radius r; and solving a column-hemispherical permeation grouting diffusion radius R considering coupling effect both the tortuosity of rock and soil mass and the time-varying property of power-law cement grout.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: August 22, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhiquan Yang, Mao Chen, Yingyan Zhu, Yi Yang, Wentao Chen, Yuqing Liu, Muhammad Asif Khan, Bihua Zhang, Hanhua Xu, Tianbing Xiang, Jie Zhang