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A design and implementation of a portable functional Near InfraRed Spectroscopy embedded system prototype is described. In this theoretical and experimental work, we present an embedded system hosting 64 LED sources and 128 Silicon PhotoMultiplier detectors (SiPM). The elementary part of the structure is a flexible probe “leaf” consisting of 16 SiPMs, 4 couples of LEDs, each operating at two wavelengths,...
In this work, we have designed and implemented a microcontroller-based embedded system for blood pressure monitoring through a PhotoPlethysmoGraphic (PPG) technique. In our system, it is possible to perform PPG measurements via reflectance mode. Hardware novelty of our system consists in the adoption of Silicon PhotoMultiplier detectors. The signal received from the photodetector is used to calculate...
Perpendicular nanomagnets can host complex bubble-like dynamics driven by the localized injection of a spin-polarized current. This kind of dynamics is here fully analyzed, by means of micromagnetic simulations, in two typical spintronic geometries: confined point-contact spin-valve and extended nano-contact oscillator. The multi-approach analysis gets information from the time domain signal, its...
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