Felix Lieder

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Controlled actuation of soft objects with functional surfaces in aqueous environments presents opportunities for liquid phase electronics, novel assembled super-structures and unusual mechanical properties. We show the extraordinary electrochemically induced actuation of liquid metal droplets coated with nanoparticles, so-called "liquid metal marbles". We(More)
A reformulation of quadratically constrained binary programs as duals of set-copositive linear optimization problems is derived using either {0, 1}-formulations or {1, 1}-formulations. The latter representation allows an extension of the randomization technique by Goemans and Williamson. An application to the max-clique problem shows that the max-clique(More)
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