Patents by Inventor Lihuan Liu

Lihuan Liu 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).

  • Patent number: 11856682
    Abstract: The present invention relates to a method for measuring the ion nonextensive parameter of plasma includes the following steps: describe the plasma with nonextensive statistical mechanics, obtain the equation describing the relationship between the geodesic acoustic mode frequency and the ion acoustic speed of plasma; collect the measurement data of the geodesic acoustic mode frequencies and plasma temperature in the device where the plasma is to be measured; the obtained equation describing the relationship between the geodesic acoustic mode frequency and the ion acoustic speed of plasma is used to linearly fit the collected measured data of the geodesic acoustic mode frequency and the plasma temperature in the device where the plasma is to be measured to obtain the slope value; based on the derived equation and the obtained slope values, and combining with the safety factor of the device where the plasma is to be measured, the ion nonextensive parameter is solved numerically.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: December 26, 2023
    Assignee: NANCHANG UNIVERSITY
    Inventors: Huibin Qiu, Zuozhi Hu, Donghua Xiao, Shengfa Wu, Chengjie Zhong, Jiangcun Chen, Chaozhe Hu, Xiaobin Li, Junjie Wu, Junhui Liu, Yizhen Bao, Xiaoyang Zhang, Runrui Dai, Lihuan Liu, Jianing Xu, Xu Tu, Juecong Zhang, Peng Guo, Shuyu Long, Huang Weng, Chenyu Tong, Sanqiu Liu
  • Publication number: 20230189423
    Abstract: The present invention relates to a method for measuring the ion nonextensive parameter of plasma includes the following steps: describe the plasma with nonextensive statistical mechanics, obtain the equation describing the relationship between the geodesic acoustic mode frequency and the ion acoustic speed of plasma; collect the measurement data of the geodesic acoustic mode frequencies and plasma temperature in the device where the plasma is to be measured; the obtained equation describing the relationship between the geodesic acoustic mode frequency and the ion acoustic speed of plasma is used to linearly fit the collected measured data of the geodesic acoustic mode frequency and the plasma temperature in the device where the plasma is to be measured to obtain the slope value; based on the derived equation and the obtained slope values, and combining with the safety factor of the device where the plasma is to be measured, the ion nonextensive parameter is solved numerically.
    Type: Application
    Filed: February 8, 2023
    Publication date: June 15, 2023
    Inventors: Huibin Qiu, Zuozhi Hu, Donghua Xiao, Shengfa Wu, Chengjie Zhong, Jiangcun Chen, Chaozhe Hu, Xiaobin Li, Junjie Wu, Junhui Liu, Yizhen Bao, Xiaoyang Zhang, Runrui Dai, Lihuan Liu, Jianing Xu, Xu Tu, Juecong Zhang, Peng Guo, Shuyu Long, Huang Weng, Chenyu Tong, Sanqiu Liu
  • Publication number: 20190133535
    Abstract: A method for calculating physiological parameters includes: selecting a section of time domain signal corresponding to at least one signal of red light and infrared light obtained by sampling, and performing a conversion from time domain to frequency domain to obtain a corresponding frequency domain signal; selecting all rational frequency spectrum peak information, calculating energy information of selected reasonable frequency spectrum peaks, and forming a frequency spectrum peak energy ratio sequence; constructing a stability coefficient according to the frequency spectrum peak energy ratio sequence, and if the stability coefficient is low, constructing a compensation coefficient by using the frequency spectrum peak energy ratio sequence; and compensating for at least one of the time domain signal and the frequency domain signal by using the compensation coefficient, and calculating based on at least one of the compensated time domain signal and the frequency domain signal to obtain the physiological param
    Type: Application
    Filed: November 28, 2018
    Publication date: May 9, 2019
    Inventors: Fei Han, Fei Ye, Zuming Yao, Fei Zhang, Xianliang He, Lihuan Liu, Ming Li