This paper investigates how the measurement of a network attack taxonomy can be related to human perception. Network attacks do not have a time limitation, but the earlier its detected, the more damage can be prevented and the more preventative actions can be taken. This paper evaluate how elements of network attacks can be measured in near real-time(60 seconds). The taxonomy we use was develop...

For a xed positive integer k, the linear k-arboricity lak(G) of a graph G is the minimum number ‘ such that the edge set E(G) can be partitioned into ‘ disjoint sets and that each induces a subgraph whose components are paths of lengths at most k. This paper studies linear k-arboricity from an algorithmic point of view. In particular, we present a linear-time algorithm to determine whether a tr...

Photovoltaic (PV) systems have significantly shifted from independent power generation systems to a large-scale grid-connected generation systems in recent years. The power output of PV systems is affected by the reliability of various components in the system. This study proposes an analytical approach to evaluate the reliability of large-scale, grid-connected PV systems. The fault tree method...

Time series issued from two di¤erent physical systems described by similar dynamic’s equations are modelized and analyzed here from a phase space point of view. Long term events are pointed out using symbolic dynamic’s tools. It is shown that these new approach can be an alternative to classical time series analysis methods.

In some control and observations problems, it may be convenient, at least from the analysis point of view, to use non proper systems. However, as far as their implementation is concerned, proper approximations have to be designed. In this paper, we show how exponential approximations can be rather easily designed. We consider the MIMO case and study the relative stability of the approximation. ...

The notions of poles and zeros at infinity and their relations are extended to the case of linear continuous time-varying systems. This study is based on the notion of a “newborn system” which is, in a mathematical point of view, a graded module extension over the noncommutative ring of differential operators. It is proved to be a relevant generalization to the time-varying case of the equivale...

Background: Left ventricular torsion is one of the most important biomechanical parameters of heart that routinely is measured in short axis view.  A review of the literature has indicated that assessment of left ventricular torsion in short axis view has some limitations. In the present study, we evaluated whether torsion angle assessment in long axis view can be used as a diagnostic biomechan...

Large software systems often have complex subparts that engage in subtle relationships with the underlying technologies from which they are built. Consequently, many such systems have complex and interesting architectural properties that can only be understood in the context of the various phases of system construction. We consider that modelling and extracting build-time architectural views of...