This study evaluates rail transit benefits based on a comprehensive analysis of transportation system performance in major U.S. cities. It finds that cities with large, wellestablished rail systems have significantly higher per capita transit ridership, lower average per capita vehicle ownership and annual mileage, less traffic congestion, lower traffic death rates, lower consumer expenditures ...

AbstractA BiCMOS rail-to-rail operational amplifier capable of operating from supply voltages as low as 1.W is presented. A new technique of achieving a rail-to-rail input common mode range us'ing a bipolar input stage is developed. The new technique avoids the use of complementary pairs at the input and thus avoids complicated schemes for monitoring the constant g,?, . The resulting variation ...

Irregularity of firing in spike trains has been associated with coding processes and information transfer or alternatively treated as noise. Previous studies of irregularity have mainly used the coefficient of variation (CV) of the interspike interval distribution. Proper estimation of CV requires a constant underlying firing rate, a condition that most experimental situations do not fulfill ei...

Rail is a framework for building web applications that can precisely identify inappropriately disclosed data after a vulnerability is discovered. To do so, Rail introduces retroactive disclosure auditing: re-running the application with previous inputs once the vulnerability is fixed, to determine what data should have been disclosed. A key challenge for Rail is to reconcile state divergence be...

this paper proposes a low voltage (±0.55v supply voltage) low power (44.65µw) high common mode rejection ratio (cmrr) differential amplifier (d.a.) with rail to rail input common mode range (icmr), constant transconductance (gm) and enhanced frequency performance. its high performance is obtained using a simple negative averaging method so that it cancels out the common mode input signals at th...

This paper discusses the results of an investigation into ways in which the safety risks of travel on road and rail interact with each other in Great Britain, other than through physical contact such as at level crossings. The two main foci of the paper are: (1) an analysis of the 'whole journey' risks of journeys for which the national rail system is the main mode, but which also include stage...

In the last century, modern cryptology has mainly focused on defining cryptosystems resistant against logical attacks. But lately, with the increasing use of secure embedded systems, researchers focused on the correlation between data processed by cryptographic devices and their physical leakages. As a result, new, efficient side-channel attacks exploiting these physical leakages have appeared ...

Sense amplifiers plays an important role in memories like Dynamic Random Access (DRAM) and Static Random Access (SRAM) for read and write operations. A sense amplifier compares the bit line voltage and its complement amplifies it to rail to rail output voltages. In this project, we mainly concentrated on the write operation. Sense amplifier is one of the peripheral circuits in memories that are...

In recent years, some countermeasures against Differential Power Analysis (DPA) at the logic level have been proposed. At CHES 2005 conference, Popp and Mangard proposed a new countermeasure named Masked Dual-Rail Pre-Charge Logic (MDPL) which combine dual-rail circuits with random masking to improve Wave Dynamic Differential Logic (WDDL). The proposers of MDPL claim that it can implement secur...