ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,513, issued on May 27, was assigned to Dalian University of Technology (Dalian, China).

"Random particle generation method based on particle size distribution" was invented by Dayong Wang (Dalian, China), Liang Zhao (Dalian, China), Qilin Wang (Dalian, China), Mengxin Li (Dalian, China) and Wei Wei (Dalian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a random particle generation method based on particle size distribution, which can accord with the particle size distribution characteristics of a geological structure. According to this method, random particle generation is adopted, so that a common spherical st...