The optimal phase matching is determined for the second harmonic generation (SHG) in biaxial non-linear optical crystals of monoclinic symmetry - BiBO, LCB (poi ...

Research Fellow, Center for Peace and Security in the Middle East The Western Sahara conflict—once a Cold War–era standoff between Morocco and a separatist insurgency—has reemerged as a volatile front ...

A tide of violence, fueled by an expanding jihadist network in the Sahel, is steadily creeping from Nigeria's North-West region into its food basket, the Middle Belt.

A tide of violence, fueled by an expanding jihadist network in the Sahel, is steadily creeping from Nigeria’s North-West region into its food basket, the Middle Belt. The recent massacres in ...

Discrete grid systems are crucial for completing satellite observation tasks. However, there is currently no grid system dedicated to multisatellite joint regional coverage (MSJRC). In this letter, a ...