Stephanie Heinen

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BACKGROUND The amount of available biological information is rapidly increasing and the focus of biological research has moved from single components to networks and even larger projects aiming at the analysis, modelling and simulation of biological networks as well as large scale comparison of cellular properties. It is therefore essential that biological(More)
A low power, fully integrated 2.4 GHz fractional-N frequency synthesizer for Bluetooth in a 0.25 /spl mu/m CMOS technology is presented. The complete synthesizer, including a fully integrated VCO, consumes 22 mA from a 2.5 V supply. The integrated VCO reaches a phase noise of -133 dBc/Hz at 3 MHz. The synthesizer is designed for a direct /spl Sigma//spl(More)
The proposed low cost Bluetooth single-chip solution is implemented in a 0.25 /spl mu/m CMOS technology. The "System On Chip (SOC)" includes all necessary baseband- and RF-parts to achieve full Bluetooth functionality, by occupying 18.5 mm/sup 2/ chip area in total. The maximum current consumption of the analog part is 60 mA. The internal regulated supply(More)
BACKGROUND Metabolome analysis with GC/MS has meanwhile been established as one of the "omics" techniques. Compound identification is done by comparison of the MS data with compound libraries. Mass spectral libraries in the field of metabolomics ought to connect the relevant mass traces of the metabolites to other relevant data, e.g. formulas, chemical(More)
Background: The amount of available biological information is rapidly increasing and the focus of biological research has moved from single components to networks and even larger projects aiming at the analysis, modelling and simulation of biological networks as well as large scale comparison of cellular properties. It is therefore essential that biological(More)
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