Günter Graf

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This paper examines cost effective high availability systems based on standardized CompactPCI backplanes. This bus technology allows a fine-grained structural redundancy by hot-swapping peripheral boards at run-time. To quantitatively evaluate the availability of such a system, several models based on Generalized Stochas-tic Petri Nets have been created(More)
The exact regional correlation of findings of facial bone scans, planar or SPECT, to dental orthopan X-ray films (OPT) is difficult because of the very different projection techniques. To improve correlative imaging in this regard a projection algorithm was developed that uses SPECT data of the skull for reconstructing an orthopan tomoscintigraphic(More)
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