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Optical response of undoped and doped zinc oxide thin films
(2017-07)
The optical response of undoped and doped ZnO thin films was investigated. Epitaxial films were deposited on c-plane and r-plane sapphire using pulsed laser deposition and were characterized with a combination of ...
Locomotion of a cylindrical rolling robot with a shape changing outer surface
(2017-03)
A cylindrical rolling robot is developed that generates torque by changing shape (eccentricity) of its elliptical outer surface. Shape change commences four times per revolution, whenever one of four elliptical axes rotates ...