Patents by Inventor Yanfei Li
Yanfei Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11988547Abstract: The present invention discloses a train compartment vibration monitoring method and vibration signal feature library establishment and application methods. The non-intrusive train compartment vibration monitoring method only obtains vibration signals of a main measurement point in a train compartment during actual monitoring. The method accurately and truthfully reflects the relationship between the position of a vibration source and the phase offset and amplitude attenuation, can monitor the vibration of an unknown vibration source, and can identify the abnormal vibration to provide a basis for abnormal vibration processing.Type: GrantFiled: January 4, 2021Date of Patent: May 21, 2024Assignee: Central South UniversityInventors: Hui Liu, Chengming Yu, Yanfei Li, Jin Qin, Lei Zhang, Shi Yin, Zhu Duan
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Publication number: 20240133749Abstract: A bidirectional reflectance distribution function (BRDF) measurement system and method, an electronic device, and a storage medium. The BRDF measurement system includes: a blackbody, a spectroradiometer and a controller; where in case that the blackbody is heated to a target temperature, it undergoes a solid-liquid phase change; the spectroradiometer is used to measure the blackbody and transmit a first measurement signal to the controller, and in case that the blackbody irradiates a to-be-measured point on a sample surface, the spectroradiometer is further used to measure radiation from the to-be-measured point, and transmit a second measurement signal to the controller; and the controller is used to obtain a BRDF of the to-be-measured point based on the first measurement signal, the second measurement signal, the target geometric relationship, a target mapping relationship and a dimension parameter of the blackbody.Type: ApplicationFiled: October 17, 2023Publication date: April 25, 2024Inventors: Zhifeng WU, Caihong DAI, Ling LI, Yanfei WANG, Sijie HE
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Patent number: 11959900Abstract: A health early warning system for passengers on a train in an outdoor air polluted environment and a method thereof are provided. The system comprises an air quality monitoring station data acquisition module, a train data acquisition module, a train air pollution prediction module, and a train air environment early warning module; the air quality monitoring station data acquisition module acquires data of air quality monitoring stations and uploads the data to the train air pollution prediction module; the train data acquisition module acquires data of the train and uploads the data to the train air pollution prediction module; the train air pollution prediction module performs short-term prediction on air pollution of the train and uploads a result of the short-term prediction to the train air environment early warning module; and the train air environment early warning module performs early warning on the health of the passengers on the train.Type: GrantFiled: July 13, 2020Date of Patent: April 16, 2024Assignee: Central South UniversityInventors: Hui Liu, Haiping Wu, Yanfei Li, Chao Chen
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Patent number: 11946917Abstract: A detection method of polyethylene glycol monomethyl ether residue in medicinal materials is provided, which belongs to a technical field of medicinal chemical component detection, and includes: detecting a residual amount of mPEG-2000 in 3000-3400 small-molecule mPEG-b-PDLLA by high-performance liquid chromatography with an evaporative light scattering detector. The present invention solves a problem that the copolymer polyethylene glycol monomethyl ether mPEG and the product polyethylene glycol monomethyl ether-polylactic acid block copolymer mPEG-b-PDLLA are difficult to be separated in the high-performance liquid chromatography and there is no UV absorption. The present invention also has high resolution, high sensitivity, sufficient reproducibility and sufficient selectivity.Type: GrantFiled: May 14, 2020Date of Patent: April 2, 2024Assignee: SHANXI KANGBAO BIOLOGICAL PRODUCT CO., LTDInventors: Kai Zhou, Junwen Wu, Fan Wang, Zhaowei Yan, Yanfei Li
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Patent number: 11938784Abstract: A health protection system and a method for passengers on a train in a polluted indoor environment are provided. The health protection system includes a basic data acquisition module, an outdoor air quality prediction module, an indoor air quality prediction module, and a ventilation strategy generation module, wherein the basic data acquisition module acquires basic data; the outdoor air quality prediction module predicts outdoor air quality of the train; the indoor air quality prediction module predicts indoor air quality of the train; and the ventilation strategy generation module generates a ventilation strategy and achieves health protection of the passengers on the train. The method includes: predicting indoor and outdoor air quality data information of the train according to the acquired indoor and outdoor air quality data of the train; and generating a corresponding ventilation strategy according to the indoor and outdoor air quality data of the train.Type: GrantFiled: July 13, 2020Date of Patent: March 26, 2024Assignee: Central South UniversityInventors: Hui Liu, Chao Chen, Zhu Duan, Yanfei Li
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Publication number: 20240044695Abstract: The present invention discloses a train compartment vibration monitoring method and vibration signal feature library establishment and application methods. The non-intrusive train compartment vibration monitoring method only obtains vibration signals of a main measurement point in a train compartment during actual monitoring. The method accurately and truthfully reflects the relationship between the position of a vibration source and the phase offset and amplitude attenuation, can monitor the vibration of an unknown vibration source, and can identify the abnormal vibration to provide a basis for abnormal vibration processing.Type: ApplicationFiled: January 4, 2021Publication date: February 8, 2024Inventors: Hui LIU, Chengming YU, Yanfei LI, Jin QIN, Lei ZHANG, Shi YIN, Zhu DUAN
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Publication number: 20230398377Abstract: An image guided radiotherapy apparatus and a control method are provided. According to a specific embodiment, the radiotherapy apparatus includes: a treatment unit, which includes a treatment head for generating radiation beam for radiotherapy; an imaging unit for imaging a target area of a patient, wherein the imaging unit is integrated mounted with the treatment head. The radiotherapy apparatus of the present invention can be applicable to both extracorporeal and intraoperative radiotherapy, and has a high radiotherapy accuracy.Type: ApplicationFiled: June 5, 2023Publication date: December 14, 2023Inventors: Jianrong Dai, Chuanmeng Niu, Yanfei Li, Hao Zha, Pan Ma, Shirong Wang, Fugen Zhou, Hongda Li, Minghui Li, Guozheng Lv, Xiangfei Chai, Baoying Peng, Jinyan Zhang
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Publication number: 20230366004Abstract: Disclosed are a train compartment air adjustment and control method and apparatus, and a storage medium and a program product. A ventilation system is adjusted according to microbial diffusion situations among various test points, so as to reduce a microbial pollution index of an area where passengers are located. The method has a guide effect on railway train air quality adjustment and control. By means of the present invention, a mapping relationship between microbial pollution and the concentration of atmospheric pollutants is studied, the problem of the real-time performance of microbial detection can be effectively solved, and the real-time adjustment and control of microbial pollution in a train compartment are guaranteed.Type: ApplicationFiled: October 9, 2021Publication date: November 16, 2023Applicant: CENTRAL SOUTH UNIVERSITYInventors: Hui Liu, Yanfei Li, Jiahao Xie, Jie Zhang, Xirui Chen
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Patent number: 11656893Abstract: The invention discloses a container Dockerfile and container mirror image quick generation methods and systems. The container Dockerfile quick generation method includes the steps of for a to-be-packaged target application, running and performing tracking execution on the target application, and recording operation system dependencies of the target application in the running process; organizing and constructing a file list required for packaging the target application to a container mirror image; and according to the file list required for packaging the target application to the container mirror image, generating a Dockerfile and container mirror image file creation directory used for packaging the target application to the container mirror image. Any target application can be automatically packaged by the invention to a container; the construction of an executable minimal environmental closure of the target application is finished; the packaged container is smaller than a manually made container.Type: GrantFiled: November 21, 2018Date of Patent: May 23, 2023Assignee: GENETALKS BIO-TECH (CHANGSHA) CO., LTD.Inventors: Zhuo Song, Gen Li, Xu Zhou, Chouxian Ma, Chenglong Xie, Kan Wu, Zhaohui Sun, Xiali Xu, Chungen Yi, Yao Yang, Lixia Zhao, Wenfei Ning, Jun Chuan, Junxiang Tang, Delong Zhu, Haibo Mao, Yanhuang Jiang, Yanfei Li
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Publication number: 20220237067Abstract: Disclosed are a relay protection system risk assessment and fault positioning method and apparatus, and a device and a medium.Type: ApplicationFiled: November 13, 2019Publication date: July 28, 2022Inventors: Wenhuan WANG, Peng GUO, Rongrong ZHAN, Lie ZHANG, Yanfei LI, Guosheng YANG, Limin WANG, Yiqun KANG, Hanfang ZHANG, Zhoutian YAN
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Publication number: 20220153320Abstract: The present invention discloses an interior air quality monitoring and ventilation control method and system for a train.Type: ApplicationFiled: July 29, 2020Publication date: May 19, 2022Inventors: Hui LIU, Yanfei LI, Rui YANG, Shuqin DONG, Chengqing YU
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Publication number: 20220057587Abstract: Embodiments of the disclosure relate to a polymer composition. The polymer composition includes from 0% to 80% by weight of a polyolefin component and from 20% to 100% by weight of a thermoplastic elastomer component. The polymer composition has an elastic modulus of less than 1500 MPa at ?40° C. as measured using dynamic mechanical analysis according to ASTM D4065. Further, the polymer composition has a coefficient of thermal expansion as averaged over the temperature range of ?40° C. to 25° C. of more than 120×10?6/K when measured according to ASTM E831, and the polymer composition has a thermal contraction stress of no more than 4.0 MPa at ?40° C. as measured using dynamic mechanical analysis. Additionally, embodiments of an optical fiber cable having a cable jacket made of the polymeric composition are disclosed herein.Type: ApplicationFiled: November 3, 2021Publication date: February 24, 2022Inventors: Anne Germaine Bringuier, Xiaole Cheng, Yanfei Li
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Publication number: 20220016854Abstract: A composite has repeating domains of an inorganic glass and a polymer, such that the inorganic glass and the polymer each have a glass transition temperature (Tg) or softening temperature of less than 450° C., and at least 50% of the inorganic glass domains have a length of less than 30 ?m as measured along at least one cross-sectional dimension.Type: ApplicationFiled: June 24, 2019Publication date: January 20, 2022Inventors: Heather Bossard Decker, Shandon Dee Hart, Yanfei Li, Joseph Edward McCarthy, David John McEnroe, Mark Alejandro Quesada
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Publication number: 20220011284Abstract: A health early warning system for passengers on a train in an outdoor air polluted environment and a method thereof are provided. The system comprises an air quality monitoring station data acquisition module, a train data acquisition module, a train air pollution prediction module, and a train air environment early warning module; the air quality monitoring station data acquisition module acquires data of air quality monitoring stations and uploads the data to the train air pollution prediction module; the train data acquisition module acquires data of the train and uploads the data to the train air pollution prediction module; the train air pollution prediction module performs short-term prediction on air pollution of the train and uploads a result of the short-term prediction to the train air environment early warning module; and the train air environment early warning module performs early warning on the health of the passengers on the train.Type: ApplicationFiled: July 13, 2020Publication date: January 13, 2022Applicant: Central South UniversityInventors: Hui LIU, Haiping WU, Yanfei LI, Chao CHEN
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Patent number: 11181707Abstract: Embodiments of the disclosure relate to a polymer composition. The polymer composition includes from 0% to 80% by weight of a polyolefin component and from 20% to 100% by weight of a thermoplastic elastomer component. The polymer composition has an elastic modulus of less than 1500 MPa at ?40° C. as measured using dynamic mechanical analysis according to ASTM D4065. Further, the polymer composition has a coefficient of thermal expansion as averaged over the temperature range of ?40° C. to 25° C. of more than 120×10?6/K when measured according to ASTM E831, and the polymer composition has a thermal contraction stress of no more than 4.0 MPa at ?40° C. as measured using dynamic mechanical analysis. Additionally, embodiments of an optical fiber cable having a cable jacket made of the polymeric composition are disclosed herein.Type: GrantFiled: February 12, 2020Date of Patent: November 23, 2021Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATIONInventors: Anne Germaine Bringuier, Xiaole Cheng, Yanfei Li
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Publication number: 20210291614Abstract: A health protection system and a method for passengers on a train in a polluted indoor environment are provided. The health protection system includes a basic data acquisition module, an outdoor air quality prediction module, an indoor air quality prediction module, and a ventilation strategy generation module, wherein the basic data acquisition module acquires basic data; the outdoor air quality prediction module predicts outdoor air quality of the train; the indoor air quality prediction module predicts indoor air quality of the train; and the ventilation strategy generation module generates a ventilation strategy and achieves health protection of the passengers on the train. The method includes: predicting indoor and outdoor air quality data information of the train according to the acquired indoor and outdoor air quality data of the train; and generating a corresponding ventilation strategy according to the indoor and outdoor air quality data of the train.Type: ApplicationFiled: July 13, 2020Publication date: September 23, 2021Applicant: Central South UniversityInventors: Hui LIU, Chao CHEN, Zhu DUAN, Yanfei LI
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Patent number: 10875806Abstract: An organic-inorganic composite, including: a discontinuous phase having a plurality of adjacent and similarly oriented fibers of an inorganic material; and a continuous organic phase having a thermoplastic polymer, such that the continuous organic phase surrounds the plurality of adjacent and similarly oriented fibers of the inorganic material, and the organic-inorganic composite is a plurality of adjacent and similarly oriented fibers of inorganic material contained within a similarly oriented host fiber of the thermoplastic polymer. Also disclosed are methods of making and using the composite.Type: GrantFiled: June 20, 2018Date of Patent: December 29, 2020Assignee: Corning IncorporatedInventors: Heather Bossard Decker, Shandon Dee Hart, Jenny Kim, Yanfei Li, Joseph Edward McCarthy, Nicholas James Smith, James William Zimmermann
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Publication number: 20200309749Abstract: A detection method of polyethylene glycol monomethyl ether residue in medicinal materials is provided, which belongs to a technical field of medicinal chemical component detection, and includes: detecting a residual amount of mPEG-2000 in 3000-3400 small-molecule mPEG-b-PDLLA by high-performance liquid chromatography with an evaporative light scattering detector. The present invention solves a problem that the copolymer polyethylene glycol monomethyl ether mPEG and the product polyethylene glycol monomethyl ether-polylactic acid block copolymer mPEG-b-PDLLA are difficult to be separated in the high-performance liquid chromatography and there is no UV absorption. The present invention also has high resolution, high sensitivity, sufficient reproducibility and sufficient selectivity.Type: ApplicationFiled: May 14, 2020Publication date: October 1, 2020Inventors: Kai Zhou, Junwen Wu, Fan Wang, Zhaowei Yan, Yanfei Li
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Publication number: 20200293354Abstract: The invention discloses a container Dockerfile and container mirror image quick generation methods and systems. The container Dockerfile quick generation method includes the steps of for a to-be-packaged target application, running and performing tracking execution on the target application, and recording operation system dependencies of the target application in the running process; organizing and constructing a file list required for packaging the target application to a container mirror image; and according to the file list required for packaging the target application to the container mirror image, generating a Dockerfile and container mirror image file creation directory used for packaging the target application to the container mirror image. Any target application can be automatically packaged by the invention to a container; the construction of an executable minimal environmental closure of the target application is finished; the packaged container is smaller than a manually made container.Type: ApplicationFiled: November 21, 2018Publication date: September 17, 2020Applicant: GENETALKS BIO-TECH (CHANGSHA) CO., LTD.Inventors: Zhuo SONG, Gen LI, Xu ZHOU, Chouxian MA, Chenglong XIE, Kan WU, Zhaohui SUN, Xiali XU, Chungen YI, Yao YANG, Lixia ZHAO, Wenfei NING, Jun CHUAN, Junxiang TANG, Delong ZHU, Haibo MAO, Yanhuang JIANG, Yanfei LI
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Publication number: 20200271880Abstract: Embodiments of the disclosure relate to a polymer composition. The polymer composition includes from 0% to 80% by weight of a polyolefin component and from 20% to 100% by weight of a thermoplastic elastomer component. The polymer composition has an elastic modulus of less than 1500 MPa at ?40° C. as measured using dynamic mechanical analysis according to ASTM D4065. Further, the polymer composition has a coefficient of thermal expansion as averaged over the temperature range of ?40° C. to 25° C. of more than 120×10?6/K when measured according to ASTM E831, and the polymer composition has a thermal contraction stress of no more than 4.0 MPa at ?40° C. as measured using dynamic mechanical analysis. Additionally, embodiments of an optical fiber cable having a cable jacket made of the polymeric composition are disclosed herein.Type: ApplicationFiled: February 12, 2020Publication date: August 27, 2020Inventors: Anne Germaine Bringuier, Xiaole Cheng, Yanfei Li