Jan-Frederic Markert

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Ever-connected smart phones and advanced sensors have lead to new sensing paradigms that promise environmental monitoring in unprecedented spatio-temporal resolution. Especially in air quality sensing with low-cost sensors, regular in-situ device calibration is a helpful approach to ensure data quality. In participatory sensing scenarios, privacy(More)
The signals of the HADES drift chambers [1] are read-out and digitized by means of dedicated, customized boards. The sense wires are connected to the analog boards [2], housing ASD8 chips [3] for differential amplification , shaping and discrimination. These chips deliver logical signals with variable width, equivalent to the time the shaped signal exceeds(More)
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