Many alternatives to silicon are being developed, as it is believed that silicon transistors will reach their technological limits after 2020. Two-dimensional (2-D) nanomaterials have shown promise for a new generation of nanoelectronic devices. The most widely studied 2-D nanomaterial is graphene, a single layer of carbon atoms and packed …

Current unmanned aircraft – including the MQ-1 Predator, MQ-9 Reaper and RQ-4 Global Hawk have excelled against terrorists, both for near-persistent intelligence, surveillance and reconnaissance and strike capability for Reapers and Predators. This was partly due to the permissive environments of southwest Asia counter terrorism missions against technologically inferior groups. In …

The threat of terrorism is not new to transportation. From jet airliners to mass transit buses and rail terminals, vehicles and transport facilities are all-too-familiar targets of terrorist attacks.   The 1995 sarin gas attack on the Tokyo subway left 13 people dead and injured 6,000 others. The terror attack was …