ABB (Switzerland)

Vortices in high-temperature superconductors

With the high-temperature superconductors a qualitatively new regime in the phenomenology of type-II superconductivity can be accessed. The key elements governing the statistica...

Principles and applications of electrochemical capacitors

Hardness measurement at penetration depths as small as 20 nm

Abstract In this paper we investigate the properties of indentation hardness on the sub-micrometre scale in nickel, gold and silicon. Indenter penetration depths as low as 20 nm...

Excitation dynamics in random one-dimensional systems

The authors investigate the asymptotic (low-frequency or long-time) behavior of random one-dimensional systems described by a master equation of the form $\frac{{C}_{n}d{P}_{n}}...

Hybrid multilevel power conversion system: a competitive solution for high-power applications

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders...

Basestation modulation diversity for digital simulcast

A base station modulation diversity scheme is proposed for simulcast systems which use linear QAM (quadrature amplitude modulation) type modulation. With this method the bandwid...