Abstract: In the process of tunnel construction and urban underground space development, karst caves and cavities often cause casualties and economic losses. However, due to the influence of complex ...

It’s never been easier to sell an old phone, a sofa, or concert tickets online — but it’s also never been riskier. From fake ...

Abstract: This article presents a subcell method for modeling electrically thin dielectric material sheets with thin-wire nets in the finite-difference time-domain (FDTD) method. We improved the ...

SAN DIEGO — As holiday package thefts surge, videos of booby-trapped deliveries are trending on social media, but attorneys are cautioning consumers that retaliating against porch pirates could result ...