Patents by Inventor Yuhua Yan

Yuhua Yan 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: 11994536
    Abstract: The present invention provides a system for data mapping and storing in digital three-dimensional oscilloscope, wherein the fixed coefficients, which are calculated according the parameters and settings of a digital oscilloscope, are stored into a fixed coefficient memory CO RAM, the fixed coefficients are outputted to N fractional operation units through N?1 D flip-flop delay units to multiply with the acquired data x(n) and then be accumulated, thus N fractional calculus results are obtained. In this way, N fractional calculus results can be obtained by performing L/N fractional calculus operations. N fractional calculus results are sent to a signal processing and display module, in which they are converted into a display data through a drawing thread, and the display data are sent to LCD for displaying, thus the fractional calculus operation and display of a input signal in a digital oscilloscope is realized.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: May 28, 2024
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Bo Xu, Kai Chen, Libing Bai, Lulu Tian, Hang Geng, Yuhua Cheng, Songting Zou, Jia Zhao, Yanjun Yan, Xiaoyu Huang
  • Patent number: 7989532
    Abstract: An RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid)/?-tricalcium phosphate composite material is composed of ?-tricalcium phosphate particles and RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid) with mass ratio of 1:10-1:100, in which the ?-tricalcium phosphate particles are uniformly dispersed in the RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid) matrix. The preparation method includes that poly (glycolic acid-L-lysine-L-lactic acid) is polymerized with GRGDY short peptide (glycin-arginine-glycin-aspartic acid-tyrosine sequence) to obtain RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid), and then RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid) is compounded with ?-tricalcium phosphate particles.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: August 2, 2011
    Assignee: Wuhan University of Technology
    Inventors: Shipu Li, Yingchao Han, Yuhua Yan, Tao Wan, Xinyu Wang, Lin Yuan, Honglian Dai, Qiongjiao Yan
  • Publication number: 20080319114
    Abstract: An RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid)/?-tricalcium phosphate composite material is composed of ?-tricalcium phosphate particles and RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid) with mass ratio of 1:10-1:100, in which the ?-tricalcium phosphate particles are uniformly dispersed in the RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid) matrix. The preparation method includes that poly (glycolic acid-L-lysine-L-lactic acid) is polymerized with GRGDY short peptide (glycin-arginine-glycin-aspartic acid-tyrosine sequence) to obtain RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid), and then RGD polypeptide grafted poly (glycolic acid-L-lysine-L-lactic acid) is compounded with ?-tricalcium phosphate particles.
    Type: Application
    Filed: July 10, 2008
    Publication date: December 25, 2008
    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY
    Inventors: Shipu Li, Yingchao Han, Yuhua Yan, Tao Wan, Xinyu Wang, Lin Yuan, Honglian Dai, Qiongjiao Yan
  • Patent number: 6627046
    Abstract: The useful reaction products in an output stream from an ammonolysis reactor are separated in a manner which minimizes the time during which high boiling polyamide intermediate material(s) are in contact with the amine-functional monomer product(s) or with the reactive monomer products in the stream.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: September 30, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stuart Borden Fergusson, Yuhua Yan