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This paper reports for the first time the study of radiation effects on triple gate SOI tunnel FETs. In this work, devices with 1 μm width and three different channel lengths were exposed to a 600 keV proton radiation source and their current-voltage behavior was analyzed after 1 Mrad(Si) of accumulated total dose, comparing the results obtained before and after irradiation. It was possible to notice...
It has recently been demonstrated that boresight averaged Faraday rotation angle (FRA) can be retrieved directly from SMOS full-pol radiometric data. However, in order to extend FRA retrievals to the full Alias-Free Field of View (AF-FoV), SMOS relatively poor pixel radiometric sensitivity and accuracy must be compensated by spatial and temporal averaging. This requires some kind of tradeoff to constrain...
Thermal-infrared remote sensing of land surface temperature (LST) provides valuable information for quantifying root-zone water availability, evapotranspiration (ET) and crop condition. This paper describes the most recent modifications applied to the robust but relatively simple LST-based energy balance model, the Two-Source Energy Balance (TSEB), which solves for the soil/substrate and canopy temperatures...
It has recently been found that the visibility denormalization process introduces a spatial error distribution due to small sporadic offset jumps in the PMS detectors. The radiometric impact of this error at system level is very low. However, due to the good performance of the SMOS instrument, a study has recently been conducted to evaluate the amplitude of such visibility errors and develop a mitigation...
We evaluated the electromechanical delay (EMD) for the tibialis anterior (TA) muscle during the performance of time-varying ankle dorsiflexions. Subjects were asked to track a sinusoidal trajectory, for a range of amplitudes and frequencies. Motor unit (MU) action potential trains were identified from surface electromyography (EMG) decomposition and summed to generate the cumulative spike train (CST)...
In this paper we present a high-transimpedance, low-noise and noise-matched pre-amplifier for integrated CMOS-MEMS sensing devices. The thermomechanical noise of a MEMS resonator has been characterized under atmospheric conditions in order to prove the low input noise of the designed transimpedance pre-amplifier. Results of the CMOS-MEMS system in a Pierce oscillator configuration demonstrates the...
Nowadays numerous standards in mobile phones and short range links are emerging. The development of antennas covering all those allowed frequencies with only one element and one feeding appears to be an important goal [1]. For example, base stations for mobiles are mostly composed of different arrays of antennas, each array working for only one band. The purpose of the presented study is to develop...
In this paper we will discuss the CMOS circuit design strategies and main results for an all-CMOS MEMS based oscillator in order to reduce the oscillator far-to-carrier noise (which is limited by the circuit noise) and the close-to-carrier noise (which is limited by both the amplifier phase noise and the MEMS quality factor). The feasibility of using the Via layer of a commercial CMOS technology to...
A dual-band RHCP (right-hand circular polarization) microstrip patch antenna is presented for its implementation on a GNSS receiver covering the bands L2, E6 and L1. To improve the total efficiency at the band edges, a dualband equalized is designed by implementing a dual-band filter matched to the complex impedance of the antenna. This filter is composed of two single-band filters, each of them designed...
This contribution describes the planning and the development of laboratory activities for an introduction to Robotics, as well as some experiences and results obtained from them. The activities have been applied in the course “Introduction to Robotics Engineering”, during the academic year 2015–16. This course is scheduled in the first year of the novel Robotics Engineering Degree offered by the University...
Image and video processing algorithms implemented in software, require most computation time when the image size is increased. Also, some algorithms must be processed at high-speed, for example the image thresholding algorithms for high throughput real-time applications. Then, in order to overcome this requirement, the algorithms must be efficiently implemented in hardware. In this paper, we present...
This paper presents a method to analyse 3D planar surfaces and to measure variations on it. The method is oriented to the detection of deformations on the elastic object surfaces formed by flat faces. These deformations are usually caused when two bodies, a solid and another elastic object, come in contact and there are contact pressures among their faces. Our method describes a strategy to model...
Grasping and manipulating deformable objects with a robot hand has several interesting challenges. Deformable objects, due to its texture and deformability, present different features from rigid ones and that issue can cause uncontrolled movements during grasping and/or manipulation. The paper presents a control strategy for grasping deformable objects, focused on elastic foams, based on tactile information...
This paper presents an implementation of a new direct visual controller based on field programmable gate arrays. This is used to perform the guidance of robot manipulators using visual information. An embedded system architecture to control a seven degrees of freedom robot is proposed taking into account the robot dynamics. Additionally, the concept of dynamic perceptibility, which provides information...
This paper describes a whole new framework to quickly develop dynamic visual servoing systems embedded in an FPGA. Parallel design of the algorithms increases the precision of this kind of controllers, whereas minimizes the response time. Embedding dynamic visual servoing algorithms converts these systems into real-time systems. Additionally, an optimal control framework to dynamically visual control...
This paper presents a circularly polarized isoflux antenna architecture. New design of compact antenna with parasitic elements was done. This antenna is composed of a circularly polarized patch associated with printed parasitic dipoles. The antenna dimension is about 83mm × 83mm × 15mm and only exceeds the upper face of the platform by 7.5mm. A new compact feeding circuit made of two (3dB, 90°) hybrid...
This paper presents a circularly polarized isoflux antenna architecture. New design of compact antenna with parasitic elements was done. This antenna is composed of a circularly polarized patch associated with printed parasitic dipoles. The antenna dimension is about 83mm × 83mm × 15mm and only exceeds the upper face of the platform by 7.5mm. A new compact feeding circuit made of two (3dB, 90°) hybrid...
This work shows our experience using photogrammetry at the site of Monte Bernorio. It tackles the usefulness of this technology from two different points of view: On one hand, as a technique that can help to the preservation of excavated structures and objects, from a conservation viewpoint. On the other hand, as an improvement on the daily documentation during the excavation of an archaeological...
Alzheimer's disease (AD) is one of the main causes of dementia in the world and the patients develop severe disability and sometime full dependence. In previous stages Mild Cognitive Impairment (MCI) produces cognitive loss but not severe enough to interfere with daily life. This work, on selection of biomarkers from speech for the detection of AD, is part of a wide-ranging cross study for the diagnosis...
Most works in dexterous manipulation consider Force Closure Grasp (FCG), not only for rigid object but also, for flexible ones, though in the second case a force readjustment is also necessary. However, there are situations in which FCG is nonviable. This paper deals with the situation of a flexible object that must be necessarily grasped from one of its sides, taking advantage of its flexibility...
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