Rolf Meissner (1925–2014)

Urlaub , Rolf Backofen and Anita

Martin Rosner Æ Rolf

The isotopic analysis of boron from material that carries only trace amounts of boron requires low boron blank levels. Large efforts are taken to keep blank levels low by purifying reagents. We performed exposure experiments and determined procedure blanks before and after the air-handling system was modified from silicate glass filters to polyethylene/polystyrole and active carbon filters. Our...

2 Rolf Niedermeier And

Notions of unambiguity for uniform circuits and AuxPDAs are studied and related to each other. In particular, a coincidence for counting and unambiguous versions of AuxPDAs and semi-unbounded fan-in circuits is shown. Moreover, an improved simulation of LOGUCFL (the class of languages logspace many-one reducible to unambiguous context-free languages) by unambiguous circuits and AuxPDAs is devel...

Meissner Effect, Spin Meissner Effect and Charge Expulsion in Superconductors

The Meissner effect and the Spin Meissner effect are the spontaneous generation of charge and spin current respectively near the surface of a metal, making a transition to the superconducting state. The Meissner effect is well known but, I argue, not explained by the conventional theory; the Spin Meissner effect has yet to be detected. I propose that both effects take place in all superconducto...

Dipl . - Ing . Paul Meissner

Location awareness is a key enabler for a multitude of indoor applications, such as logistics, intelligent warehouses, or flexible production. The robust provision of accurate position information requires a careful fusion of location-dependent parameters acquired by various sensors, including range measurements from radio signals. The latter are the basis for successful outdoor localization sy...