In this paper we present an algorithm for approximating the range of the real eigenvalues of interval matrices. Such matrices could be used to model real-life problems, where data sets suffer from bounded variations such as uncertainties (e.g. tolerances on parameters, measurement errors), or to study problems for given states. The algorithm that we propose is a subdivision algorithm that explo...

This paper presents a formal behavioural specification framework for specifying and verifying the correct behaviour of distributed Fractal components. The first contribution is a parameterised and hierarchical behavioural model called pNets that serves as a lowlevel semantic framework for expressing the behaviour of various classes of distributed languages and as a common internal format for ou...

Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1355, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7254, and Université de Nice-Sophia Antipolis, Unité Mixte de Recherche Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France (A.B., J.d.G., A.-L.Z., A.P.); and Università degli Studi di Verona, Dipartimento di Biotecnologie, Centro di Genomi...

In order to distribute new multimedia applications on a high scale, the mostly used and analyzed wide area networks (WAN) are the Internet on one side and ATM based networks on the other side. One of the current research activities in the networking area consists in trying to federate the Internet new mechanisms / protocols (IP new Generation : IPnG) and the ATM ones, in order to allow applicat...

ERCIM News is the magazine of ERCIM. Published quarterly, it reports on joint actions of the ERCIM partners, and aims to reflect the contribution made by ERCIM to the European Community in Information Technology and Applied Mathematics. Through short articles and news items, it provides a forum for the exchange of information between the institutes and also with the wider scientific community. ...

weeds in wheat (triticum aestivum l.) fields have always been a big problem in iran and worldwide and must be managed by non-chemical especially cultural methods. a field experiment as factorial based on a randomized complete block design with four replications in a 1000 m2 field in research farm of shirvan college of agriculture was conducted during 2007-2008. treatments included wheat densiti...

An effective measure for controlling the most harmful wintering and winter weed species, such as Apera spica-venti, Galium aparine, Veronica persica, Consolida regalis, Capsella bursa-pastoris, Descurainia Sophia, Vicia villosa, etc. in wheat crops is autumn application of herbicides, especially early stages crop development, starting from seed germination stage, when it sensitive to their pres...