Jörn Drewes

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HAZOP (hazard and operability) studies are carried out to analyse complex automated systems, especially large and distributed automated systems. The aim is to systematically assess the automated system regarding possibly negative effects of deviations from standard operation on safety and performance. Today, HAZOP studies require significant manual effort(More)
Safety requirements for railway systems must be developed in consideration of the potential hazards, which are usually defined by group experts in hazard lists at HAZOP (Hazard and Operability Studies) meetings. While a broken chassis screw and a derailment can both be considered as hazards the abstraction layers are completely different. This means that(More)
Knowledge of the secondary structure of antifreeze peptides (AFPs) and glycopeptides (AFGPs) is crucial to understanding the mechanism by which these molecules inhibit ice crystal growth. A polyproline type II helix is perhaps the most widely accepted conformation for active AFGPs; however, random coil and alpha-helix conformations have also been proposed.(More)
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