Patents by Inventor Yuhua Zheng

Yuhua Zheng 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: 12216085
    Abstract: The present invention provides a method for eddy current thermography defect reconstruction based on electrical impedance tomography, first, obtaining a thermal reference image of temperature change with time by acquiring a thermogram sequence S of the specimen in the process of heating and fitting a curve for pixels of each location of the thermogram sequence S, then, creating a current matrix and a magnetic potential matrix, and calculating the satisfied conductivity distribution through iterations, so as a reconstructed image is obtained, then taking the low conductivity area of the reconstructed image as the defect profile, thus the defect profile is identified and quantified.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: February 4, 2025
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Libing Bai, Xu Zhang, Chao Ren, Yiping Liang, Ruiheng Zhang, Yong Duan, Jinliang Shao, Yali Zheng, Yuhua Cheng
  • Publication number: 20090012890
    Abstract: A system and method for confirming an electronic service are provided. The system includes an electronic service application system, adapted to send an electronic service confirmation request to a confirmation center when implementing an electronic service, and implement the electronic service according to an electronic service confirmation result from the confirmation center; the confirmation center, adapted to determine a confirmation terminal corresponding to the electronic service confirmation request, send an electronic service confirmation message to the confirmation terminal, and send the electronic service confirmation result from the confirmation terminal to the electronic service application system; the confirmation terminal, adapted to receive the electronic service confirmation message, generate the electronic service confirmation result according to feedback from a user, and send the electronic service confirmation result to the confirmation center.
    Type: Application
    Filed: September 19, 2008
    Publication date: January 8, 2009
    Inventors: Shiyong WANG, Yuhua Zheng