The rapid development of Urban Air Mobility (UAM) has led to the emergence of electric vertical take-off and landing (eVTOL) aircraft, with many current concepts relying on tilt-rotor or other complex propulsion-conversion mechanisms to achieve vertical take-off and landing followed by efficient forward flight. While these configurations provide the required operational flexibility, the mechanical complexity […]
Magneto-active solids couple their mechanical response to externally applied magnetic fields, providing a promising route toward remotely tunable materials and structures. Such functionality is particularly attractive for aerospace applications involving vibration isolation, adaptive structures, sensing, and elastic-wave control. However, exploiting this coupling requires understanding a fundamental question: when does a magnetic field actually modify elastic-wave […]
Reconnaissance is the contest for information about a territory: one side tries to observe an asset or a guarded area, the other tries to deny it. Low-cost drones have made this contest cheap and constant, and protecting critical infrastructure against it is now a crucial problem, because an intruder no longer needs to strike a […]
