The stability of a steady-state front (kink) subject to a time-delayed feedback control (TDFC) is examined in detail. TDFC is based on the use of the difference between system variables at the current moment of time and their values at some time in the past. We first show that there exists a bifurcation to a moving front. We then investigate the limit of large delays but weak feedback and obtai...

Parallel Simulation has presented the possibility of performing higk speed simulation. However, when attempting to make a link between the requirenzents of Parallel Simulation and Discrete Event Simulation wed in commercial areas such as manufacturing a major problem a r k s . This lies in the decomposition of the simulation into a series of concurrently executing objects. Using the activity cy...

I propose a new graph visualization technique that allows the interactive exploration of large datasets with adjustable level of detail. The approach is designed to exploit the architecture of common graphics hardware and achieves interactive speed through parallelization. To address information hiding through node and edge clutter, I replace the standard node link diagram with a novel combinat...

Objectives: Diplophonia is a common and often misinterpreted symptom of disordered voice and needs objectification. It was hypothesized that diplophonia is produced by two distinct oscillators, which yields a profound physiological interpretation. Based on that hypothesis, an audio signal processing algorithm for the detection of diplophonia is proposed, tested and validated. Its performance is...

In the scope of the development of a complete top-down design flow targeting clock and data recovery circuits for high-speed data links, we present two methods to analyze the jitter tolerance of such links, based on statistical simulation of incoming data jitter and its effects on the recovered data bit error rate using Matlab. The second method is based on time-domain simulation using VHDL and...

The advantages of optics that include processing speed and information throughput, modularity and versatility could be incorporated into one of the most interesting and applicable topics of digital communication related to Viterbi decoders. We aim to accelerate the processing rate and capabilities of Viterbi decoders applied for convolution codes, speech recognition, inter symbol interference (...

of BDDbased 32-bit CRC encoder and decoder using LFSR methodology, with low power and less area. Generally 32-bit CRC is used in Ethernet frame for fault recognition at the transmitted data. The functional required for LFSR implementation is shift registers, flip flop which works for high frequency and yields less delay and consumes less power, the TSPC flip flop which is suitable for high spee...

Image registration is an efficient computational technique for diagnosis and diseases monitoring. Lungs airways diseases, such as chronic obstructive pulmonary disease (COPD) and asthma, require periodical checkups and past data comparison to estimate the patient condition. In this work, it is proposed an airways registration algorithm that is performed branch by branch. The branch registration...

A CMOS sub-circuit that is able to improve data communication is described. It removes jitter and hence improves the eye diagram of high-speed digital data signal. The circuit is based on a delay-locked loop and uses a half-frequency reference clock. The prototype circuit is fabricated in 2.5 V, 0.25-μm CMOS and occupies an area of only 270 x 50 μm. It is demonstrated that at 900 Mbit/s NRZ dat...

We study numerically the phases and dynamics of a dense collection of self-propelled particles with soft repulsive interactions in two dimensions. The model is motivated by recent in vitro experiments on confluent monolayers of migratory epithelial and endothelial cells. The phase diagram exhibits a liquid phase with giant number fluctuations at low packing fraction φ and high self-propulsion s...