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A study of the substrate current was presented for a PD-SOI MOSFET under forward substrate bias. The substrate current is almost independent of the gate voltage and is dominated by the SSJ diffusion current for a bias above ~0.6V. BSIMSOI agrees only qualitatively with SENTAURUS simulations, and the model for the SSJ diffusion current must be reviewed in order to quantify accurately the substrate...
This paper presents a general purpose methodology to derive new heuristics for constraint satisfaction problems using the information contained in an auxiliary graph. The method is then applied to implement a powerful heuristic for Sudoku which is `almost perfect' in the sense that a depth first search procedure needs very few backtracks to solve the 16??16 puzzle. The heuristic uses a least-constraining...
Airborne sonar is a robust sensing modality that has gained its popularity as a reliable and inexpensive means of determining the range to the closest obstacle. Nevertheless, it is impossible to extract bearing information from a single transducer if classical Time-of-Flight (TOF) measurements are used. For this reason, many sensors have been proposed in the last years that locate objects in the horizontal...
In this work, several code division multiple access encoding schemes are evaluated for their application in ultrasonic sensory systems based on the determination of times-of-flight. Proper encoding improves the performance of such systems in terms of noise immunity, capability of simultaneous measurements and precision in the distance measurements. Important applications that include encoded ultrasonic...
Latest mitigation techniques proposed at register-transfer level for dependable cryptosystems deal with time redundancy in an active on-line error-detection scheme. Round-based block ciphers are very likely to be hardened with these techniques. Although good results are achieved in terms of area or time overhead, intentional attacks are still able to obtain crucial information by means of intensive...
The H.264/AVC standard achieves a high coding efficiency compared to previous standards, but in exchange for a very high computational cost. This paper focuses on the mode decision subsystem, which is a critical one from the computational cost point of view. In particular, a hierarchical early-termination-based approach to the inter mode decision problem is proposed, in such a way that a cascade of...
Here we successfully extracted sources from noisy single-channel abdominal phonograms. First, an appropriate matrix of delays was constructed; then multiple independent components were calculated using TDSEP; finally, components were projected back onto the measurement space and grouped using K-means. Three single-channel phonograms from different subjects were analysed. Results showed a better-quality...
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