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Vorwort
(2011)
Strategisches Managment
(2011)
Nicht rassistisch, sondern eher national : Walter Boehlich und der Berliner Antisemitismusstreit
(2011)
In this study, Nuclear Magnetic Resonance (NMR), a non-destructive measurement technique, has been applied for investigation of iron turn-over processes. In non-invasive laboratory experiments, iron dissolution and precipitation reactions in saturated natural sands were observed spatially and temporally. These processes play an important role in groundwater with varying redox and pH conditions. Redox reactions turning Fe2+ into Fe3+ and Fe3+ into Fe2+ were detected in aqueous solution by the difference in magnetic relaxation times. Furthermore, the spatial distribution of the iron reduction reaction, the consumption and diffusive transfer to and from the reaction sites, was observed in a 1D set-up with natural sands. The achieved spatial resolution was less than one millimetre while repeating measurements every half an hour. It showed the system changing from diffusion-limited to reaction-limited.
Signals from the past forms and functions of the traditional behavior in Thomas Kling's essay
(2011)
Ausbildung und Fortbildung
(2011)
Personalmanagment
(2011)