Karin Schweizer

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The paper gives a brief overview of the interdisciplinary DFG priority program on spatial cognition and presents one specific theme which was the topic of a recent workshop in Göttingen in some more detail. A taxonomy of landmark, route, and survey knowledge for navigation tasks proposed at the workshop is presented. Different ways of acquiring route(More)
The miniature flow injection analysis (muFIA) system is based on a mechanically engraved manifold in a PMMA-substrate. The channels have a trapezoidal cross-section with a depth of 150 mum and a width between 180 and 360 mum and the reactor volume is 3.75 mul. A light-emitting diode (LED) is used as radiation source for absorbance detection and optical(More)
A field experiment investigated the evaluation, teaching, and application of two different approaches to automatic control in programmable logic controllers, in particular comparing the Unified Modeling Language (UML) to the classic procedural paradigm (IEC 61131-3). A total of 85 apprentices from a vocational school for production engineering with a(More)
The paper gives a brief overview of the interdisciplinary DFG priority program on spatial cognition and presents one specific theme which was the topic of a recent workshop in Göttingen in some more detail. A taxonomy of landmark, route, and survey knowledge for navigation tasks proposed at the workshop is presented. Different ways of acquiring route(More)
In machine and plant automation, model-driven object oriented (oo) programming of Programmable Logic Controller (PLC) software is becoming an alternative to the state-of-the-art programming. The authors present the results of previously conducted experiments on the usability of the classic procedural paradigm (IEC 61131-3) compared to model-driven(More)
High-voltage contactless conductivity detection of underivatized amino acids in both acidic and basic media is demonstrated. The suitability of different acidic buffer solutions at pH values of about 2.5 was investigated with 12 amino acids. Lactic acid as background electrolyte gave the best results in terms of detection limits for arginine, lysine and(More)