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The detection of bacterial concentration is important in different fields since high microbial contamination or the presence of particular pathogens can seriously endanger human health. The reference technique to measure bacterial concentration is Standard Plate Count (SPC) that, however, has long response times (24 to 72 hours) and is not suitable for automatic implementation. This paper presents...
W-band 95GHz Doppler radar named FALCON-I was developed and operated for cloud observations. High spacial and high velocity resolution are achieved with low transmitting power of millimeter wave. FALCON-I can observe not only clouds and precipitations but also flying small objects such as birds, insects, seeds of plants, and volcanic ashes in the atmosphere.
The experimental characterization of an autofocus algorithm using a liquid lens objective is presented. The objective embeds an electro-wetting based lens whose focal length is voltage controlled. Two sharpness indexes are used to measure the image focus condition in the algorithm allowing a very robust and accurate setting of the focus. The algorithm has been characterized using target images differing...
Real-time biosignal classification in power-constrained embedded applications is a key step in designing portable e-healtb devices requiring hardware integration along with concurrent signal processing. This paper presents an application based on a novel biomedical System-On-Chip (SoC) for signal acquisition and processing combining a homogeneous multi-core cluster with a versatile bio-potential front-end...
Some of most compelling application domains of the IoT and Swarm concepts relate to how humans interact with the world around it and the cyberworld beyond. While the proliferation of communication and data processing devices has profoundly altered our interaction patterns, little has been changed in the way we process inputs (sensory) and outputs (actuation). The combination of IoT (Swarms) and wearable...
This work is devoted to the modeling and analysis of the antennas in the cochlear implants. In order to accurately characterize the antenna, a three-dimensional model has been built, where precise dimensions of the loop antenna are given. The most important performance indicators have been numerically assessed. The total electric field three-dimensional polar representation is included. The radiation...
Since interactions in neural systems occur across multiple temporal scales, it is likely that information flow will exhibit a multiscale structure, thus requiring a multiscale generalization of classical causality analysis like Granger's approach. However, the computation of multiscale measures of information dynamics is complicated by theoretical and practical issues such as filtering and undersampling:...
A new Application Specific Image Processor for the enhancement of the dynamic range of medical images is presented, capable to process images at different resolutions up to 4K. An algorithm has been derived, adapted and tailored for the specific hardware design, in order to adapt the complexity of the processor to required performances or to constraints of different field programmable platforms. The...
The Hemolytic Disease of the Fetus and Newborn (HDFN), if untreated, can have severe consequences on baby's health, eventually causing death. Prevention and diagnosis of pregnancies at risk of HDFN consists in quantitative analysis in hospital every 2–4 weeks of blood group antibodies in maternal serum. The most important antibodies to be monitored are anti-Rhesus D (or anti-RhD) ones. Nowadays several...
This paper presents the integration on the same glass substrate of an amorphous silicon photodiode and a diffused waveguide, to achieve an integrated evanescent waveguide sensor. Simulations performed with COMSOL Multiphysics show that the coupling efficiency between the waveguide and the photosensor is strongly affected by the presence of the passivation layer, and by thickness and refractive index...
Unmanned Aerial Vehicles (UAVs) with high level autonomous navigation capabilities are a hot topic both in industry and academia due to their numerous applications. However, autonomous navigation algorithms are demanding from the computational standpoint, and it is very challenging to run them on-board of nano-scale UAVs (i.e., few centimeters of diameter) because of the limited capabilities of their...
This paper presents the drift analysis and improvement of integrated resistive sensor interfaces, focusing on BBPLL-based architectures. This architecture is intrinsically resilient to drift generated by environmental and circuit degradation effects due to its time-domain and highly-digital implementation. Nevertheless, for applications aiming at nearly zero drift, non-ideal effects resulting from...
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