雷电电磁场传输线方程的修正与分析

考虑大地的有限导电率时,大地附近的水平电场对电源线和电子设备的影响更为显著,因此,在假设大地为完全导体的情况下推导出来的雷电电磁场传输线方程需进行修正.利用修正过的传输线方程以及大地的各种参数,经过计算得到雷电过电压在传输线上的传播情况,并对大地有限导电率的影响作了讨论分析.     

Implication of GW170817 for Cosmological Bounces

The detection of GW170817 and its electromagnetic counterpart has revealed the speed of gravitational waves coincides with the speed of light, $c_{T}=1$. Inspired by the possibility that the physics implied by GW170817 might be related with that for the primordial universe, we construct the spatially flat stable (throughout the whole evolution) nonsingular bounce models in the beyond Horndeski theory with $c_{T}=1$ and in the degenerate higher-order scalar-tensor (DHOST) theory with $c_{T}=1$, respectively. Though it constricts the space of viable models, the constraint of $c_{T}=1$ makes the procedure of building models simpler.     

等效回路法在雷电电磁场研究中的应用

根据雷电电磁场对传输线的影响,将雷电电磁场中的传输线方程理解为电感电容的串并联回路,快速而精确地计算分析雷电产生的水平电场,认为利用等效回路法研究雷电电磁场对传输线耦合的机理具有重要意义.