Patents by Inventor Xiwang Zhang

Xiwang Zhang 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).

  • REMOTE SENSING ASSESSMENT METHOD FOR SOIL EROSION CONTROL DEGREE BASED ON MAXIMUM EROSION POTENTIAL
    Publication number: 20240369359
    Abstract: A remote sensing assessment method for soil erosion control degree based on maximum erosion potential includes: data preparation and process, and determining a current soil erosion modulus, a maximum possible soil erosion modulus, and a soil erosion control degree. A soil erosion modulus is determined as the maximum possible soil erosion modulus of a research area under a condition that a most serious water and soil loss possibly occurs; the maximum possible and the current soil erosion moduli are calculated by using a USLE model; and a ratio of a difference between the maximum possible and the current soil erosion moduli to the maximum possible soil erosion modulus is determined as the soil erosion control degree. Therefore, the soil erosion control degree is representative and popularized to measure soil management potential, which improves evaluation efficiency thereof and provides an important reference for further adjusting soil erosion management measures.
    Type: Application
    Filed: November 20, 2023
    Publication date: November 7, 2024
    Inventors: Xiwang Zhang, Jiayi Liu, Kailin Gao, Hao Zhao, Shiqi Yu, Mengwei Chen, Yuhui Cheng
  • REMOTE SENSING CLASSIFICATION METHOD BASED ON RELATIVE ENTROPY
    Publication number: 20240242477
    Abstract: A remote sensing classification method based on relative entropy includes: determining sample points of n types of ground objects in a study area and determining series remote sensing parameters; extracting, based on the sample points, remote sensing parameter values to form standard time series plots as a first distribution; taking remote sensing parameter values of to-be-classified pixels as a second distribution, determining, based on the second distribution and the first distribution, KL values of the to-be-classified pixels by using a KL-divergence formula, then obtaining n KL layers; and comparing n KL values of each to-be-classified pixel to classify it to be a type of ground objects with a minimum KL value.
    Type: Application
    Filed: September 27, 2023
    Publication date: July 18, 2024
    Inventors: Xiwang Zhang, Jianfeng Liu, Shiqi Yu, Hao Zhao, Mengwei Chen
  • Hollow porous microspheres
    Patent number: 8460547
    Abstract: The present invention refers to a hollow microsphere having a porous circumferential wall comprised of nanofilaments.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: June 11, 2013
    Assignees: Nanyang Technological University, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Delai Darren Sun, Pei Fung Lee, Xiwang Zhang, Jianhong Du, James O. Leckie
  • Membrane made of a nanostructured material
    Patent number: 8414806
    Abstract: The present invention refers to a method of fabricating a membrane made of a nanostructured material and its use.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: April 9, 2013
    Assignees: Nanyang Technological University, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Darren Delai Sun, Xiwang Zhang, Jianghong Alan Du, James O Leckie
  • HOLLOW POROUS MICROSPHERES
    Publication number: 20100264097
    Abstract: The present invention refers to a hollow microsphere having a porous circumferential wall comprised of nanofilaments.
    Type: Application
    Filed: July 14, 2008
    Publication date: October 21, 2010
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Delai Darren Sun, Pei Fung Lee, Xiwang Zhang, Jianhong Du, James O. Leckie
  • MEMBRANE MADE OF A NANOSTRUCTURED MATERIAL
    Publication number: 20100233812
    Abstract: The present invention refers to a method of fabricating a membrane made of a nanostructured material and its use.
    Type: Application
    Filed: March 28, 2008
    Publication date: September 16, 2010
    Inventors: Darren Delai Sun, Xiwang Zhang, Jianghong Alan Du, James O. Leckie