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Source gated transistors (SGTs) are field effect devices with operating characteristics desirable for both analog and digital operation. Unlike in conventional transistors, the length of the source electrode, S, may play an important role in the behavior of SGTs. Optimizing the source region geometry according to mode of operation (dominant mechanism of current injection) leads to larger saturated...
Design engineers are always looking for extra computational power to speed up the execution of their tasks. One way to achieve this speedup is to identify tasks with a high degree of parallelism and process them with graphic processing units (GPUs). GPUs are optimized to process such tasks efficiently and quickly in massive multicore hardware. The steps involved in a finite-element (FE) electromagnetic...
In this paper, we propose a novel modeling framework to study congestion in delay- and disruption tolerant networks (DTNs). The proposed model is based on directed site-bond percolation where sites represent space-time positions of DTN nodes, and bonds are contact opportunities, i.e. Communication links that can be established whenever nodes come in range of each other. To the best of our knowledge,...
This paper proposes an approach to extend the mixed logical dynamical modelling framework for synthesizing robust optimal control actions for constrained piecewise affine systems subject to bounded additive input disturbances. Rather than using closed-loop dynamic programming arguments, robustness is achieved here with an open-loop optimization strategy, such that the optimal control sequence optimizes...
In this paper, it is studied a proposal of control signal compensation of nonlinear systems under feedback linearization. An important problem in this context appears when the nonlinear system has differences (or uncertainties) with respect to the nonlinear nominal model used to design the feedback linearization control law. In this case, the practical system in closed-loop can become even unstable...
The growing penetration of solar power technology at low voltage (LV) level introduces new challenges in the distribution grid operation. Across the world, Distribution System Operators (DSO) are implementing the Smart Grid concept and one key function, in this new paradigm, is solar power forecasting. This paper presents a new forecasting framework, based on vector autoregression theory, that combines...
In this work an analysis of a coaxial TEM horn with loaded dielectric coupling structure is proposed, which is excited by pulsed signal with short duration. Due to the circularly symmetry of this horn a bi-dimensional analysis with FDTD technique was possible, and the results for the radiation pattern are compared with measurements.
The aim of this paper is to revisit the theme of non-resonant electronic ballasts focusing on a specific topology introduced in the last few years. Its complete mathematical analysis, which has not been fully explored in the past, and its practical implementation as a dc-fed electronic ballast unit is provided. The ballast here presented was successfully prototyped and is capable of pre-heating, igniting...
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