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US military plane declares sudden 'mid-flight emergency' over UK
US military plane declares sudden 'mid-flight emergency' over UK A United States Hercules military plane has been tracked heading westwards across the Atlantic before it suddenly turned around after apparently declaring an emergency and returned to Cardiff A US military plane has turned around after appearing to declare an emergency and returned to Cardiff Airport. The USAF C-130H Hercules was tracked heading westwards across the Atlantic before it suddenly turned around for unknown reasons...
Dielectric-Anisotropy-Induced Quasi-BIC Activation for Spatial Differentiation in All-Dielectric Metasurfaces
arXiv:2606.01983v1 Announce Type: new Abstract: Quasi-BICs in dielectric metasurfaces are typically obtained through geometric symmetry breaking. Here, a 20\,nm BeS insert is placed in the gap of a symmetric TiO$_2$ nanobar pair. The anisotropy of the BeS layer ($\Delta\varepsilon \approx 0.27$) relaxes the dipole-cancellation condition and gives rise to a quasi-BIC resonance.