Patents by Inventor Weiwei Han

Weiwei Han 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: 12000135
    Abstract: An ultra-large horizontal seepage test system with intelligent graded loading and variable seepage path is provided, which includes a water storage system, a water pressure system, a horizontal seepage test system and an intelligent loading and control system. The water storage system, the water pressure system and the horizontal seepage test system are connected in sequence, and the water pressure system is used to apply a water pressure and a vertical pressure to a test piece to be tested in the horizontal seepage test system. An outlet valve of the horizontal seepage test system is connected to the water storage system, and the intelligent loading and control system is used to control operations of electrical components of the water pressure system and the horizontal seepage test system. With the test system, a water head pressure can be loaded intelligently, and an infiltration angle of water inflow can be adjusted.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: June 4, 2024
    Assignee: NANJING HYDRAULIC RESEARCH INSTITUTE
    Inventors: Beixiao Shi, Shengshui Chen, Hua Ling, Jianwei Zhang, Guangze Shen, Hua Fu, Huaqiang Han, Weiwei Xu
  • Publication number: 20240150243
    Abstract: It discloses a sustained release grouting material, a preparation method and an application thereof; the sustained release grouting material comprises a water swelling core and a water-soluble sustained release coating, the water swelling core is composed of bentonite, SAP and xanthan gum, which is granulated by disc granulator relying on the cohesiveness of xanthan gum; the water-soluble sustained-release coating is prepared by mixing water-soluble starch, polyvinyl alcohol, poloxamer, lubricant and plasticizer with deionized water to obtain a film-forming solution, and the film-forming solution is coated on a coating machine; the invention uses a coating machine to coat a layer of slow-release coating on the surface of the water-absorbing expansion core, and adjusts the coating thickness by controlling the mass ratio of the coating film-forming liquid to the water-absorbing expansion core particles, so as to realize the controllable water absorption onset time of the expansion core.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 9, 2024
    Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Lihua Wang, Chunfeng Li, Zhijie Wen, Zengguang Pang, Xiaoming Fan, Qinghua Shu, Shifu Sun, Qingbiao Wang, Chunquan Dai, Weiwei Han, Shunrong Wang
  • Patent number: 11978149
    Abstract: A method, computer system, and a computer program product for projecting a 3D model defined by x, y, z coordinates onto the surface of a 2D image defined by u, v coordinates is provided. The present invention may include receiving a 3D model having a plurality of polygons, wherein certain edges are marked as seams. The present invention may include receiving input from a user, wherein the input comprises painting one or more parts of the 3D model in different colors, wherein the colors correspond with a weight of the area painted. The present invention may include unwrapping, by a processor, a 2D texture from the 3D model using a projection algorithm. The present invention may include generating a rectangular boundary around each island. The present invention may include scaling each island according to a gradient score.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: May 7, 2024
    Assignee: The Weather Company, LLC
    Inventors: Cindy Han Lu, Angela Monique Lloyd, Thai Quoc Tran, Weiwei Liu