Chunhua Fang

Oct 11, 2023 | mdpi.com | Jianyu Wang |Chunhua Fang |Guifeng Zhang

1. IntroductionVolterra integral equations occur widely in all areas of mathematical physics, such as electromagnetic scattering [1], transient scattering problems [2], acoustic scattering problems [3], the subdiffusive and superdiffusive regime [4], transport dynamics [5], static and quasi-static electrodynamics [6], and virus transmission models [7,8,9].

Jun 8, 2023 | opg.optica.org | Chunhua Fang |Tao Hu |Tian Wu |Peng Li

AbstractWhen a pulsed laser cleans a glass insulator, the laser power, scanning speed, and repetition frequency affect the laser-cleaning effect. Herein, we considered glass insulators and their surface contaminations as objects, established a finite element model, analyzed the influence of these parameters on the temperature and stress fields, and explored the optimal cleaning parameters for glass insulator surface contamination.