Ships slide in an air envelope

Friction, corrosion, and biofilms are three major problems in shipping. The research project "Air-retaining Surfaces" (ARES) – a collaboration project of Karlsruhe Institute of Technology (KIT) and the universities of Bonn ...

Understanding high efficiency of deep ultraviolet LEDs

Deep ultraviolet light-emitting diodes (DUV-LEDs) made from aluminium gallium nitride (AlGaN) efficiently transfer electrical energy to optical energy due to the growth of one of its bottom layers in a step-like fashion. ...

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