This paper presents UCloD, a novel random clock delay-based robust and scalable countermeasure against recently discovered remote power analysis (RPA) attacks. UCloD deploys very small delays (in the picosecond range) generated using tapped lines (TDLs) to mitigate RPA provides most countermeasures demonstrated thus far attacks use delay sensors, such as Time Digital Converters (TDC) or Ring Os...

This paper presents Two-Dimensional (2-D) system analysis based Iterative Learning Control (ILC) methods for Linear Time-Variant (LTV) discrete systems with multiple time delays. Both the state delays and the input delays are considered in the ILC design. The ILC research strategy for LTV discrete systems with multiple time delays is to rescontruct the derived ILC error equations into the 2-D R...

This paper studies the consensus problem for multi-agent systems with diverse input and communication delays. Decentralized consensus conditions are obtained based on the frequency-domain analysis and matrix theory. By these conditions, to achieve consensus under large input delays, one should use small interconnection gains or have small numbers of neighbors when the graph is kept connected. F...

PURPOSE/OBJECTIVES To examine how delays in breast cancer care currently are conceptualized and to introduce philosophical and theoretical tenets of critical realism as an alternative approach. DATA SOURCES Health and social sciences literature. DATA SYNTHESIS Diagnostic and treatment delays in breast cancer most frequently are conceptualized as patient, provider, or system related. The app...

This paper addresses the problem of robust stability for two-dimensional systems with delays in the state. To solve this problem, the Lyapunov second method is used. The resulting condition is written in terms of linear matrix inequalities and it is dependent on the size of delays. This fact allows us to reduce the conservatism in the stability analysis of twodimensional systems with state dela...

ABSTRACT. We study impulsive Cohen-Grossberg neural networks with S-type distributed delays. This type of delays in the presence of impulses is more general than the usual types of delays studied in the literature. Using analysis techniques we prove the existence of a unique equilibrium point. By means of simple and efficient Lyapunov functions we present some sufficient conditions for the expo...

In deep submicron VLSI circuits, interconnect delays dominate MOSFET gate delays. Conventional buffer insertion method reduces delays at the cost of valuable chip area. Consequently, alternative methods are essential. Current mode interconnects have lesser delay than voltage mode circuits and also consume lesser chip area. In the present work, superiority of current mode over voltage mode inter...

Logistic functions are good models of biological population growth. They are also popular in marketing in modelling demand-supply curves and in a different context, to chart the sales of new products over time. Delays being inherent in any biological system, we seek to analyse the effect of delays on the growth of populations governed by the logistic equation. In this paper, the local stability...

As semiconductor manufacturing entered into nanoscale era, performance degradation due to Negative Bias Temperature Instability (NBTI) became one of the major threats to circuits reliability. In this paper, we present a model and analysis of NBTI impact on circuit delays. First, we model NBTI impact on gate intrinsic delay and output transition delay. The insights of our models reveal that NBTI...