Forskningspolitiske prioriteringer og muligheter i EUs 7. rammeprogram

En overordnet vurdering av sannsynlig profil på den norske deltakelse

Stability Properties of 1-Dimensional Hamiltonian Lattices with Non-analytic Potentials

We investigate the local and global dynamics of two 1-Dimensional (1D) Hamiltonian lattices whose inter-particle forces are derived from non-analytic potentials. In particular, we study the dynamics of a model governed by a "graphene-type" force law and one inspired by Hollomon's law describing "work-hardening" effects in certain elastic materials. Our main aim is to show that, although similarities with the analytic case exist, some of the local and global stability properties of non-analytic potentials are very different than those encountered in systems with polynomial interactions, as in the case of 1D Fermi-Pasta-Ulam-Tsingou (FPUT) lattices. Our approach is to study the motion in the neighborhood of simple periodic orbits representing continuations of normal modes of the corresponding linear system, as the number of particles $N$ and the total energy $E$ are increased. We find that the graphene-type model is remarkably stable up to escape energy levels where breakdown is expected, while the Hollomon lattice never breaks, yet is unstable at low energies and only attains stability at energies where the harmonic force becomes dominant. We suggest that, since our results hold for large $N$, it would be interesting to study analogous phenomena in the continuum limit where 1D lattices become strings.Comment: Accepted for publication in the International Journal of Bifurcation and Chao

Periodically Forced Nonlinear Oscillators With Hysteretic Damping

We perform a detailed study of the dynamics of a nonlinear, one-dimensional oscillator driven by a periodic force under hysteretic damping, whose linear version was originally proposed and analyzed by Bishop in [1]. We first add a small quadratic stiffness term in the constitutive equation and construct the periodic solution of the problem by a systematic perturbation method, neglecting transient terms as $t\rightarrow \infty$. We then repeat the analysis replacing the quadratic by a cubic term, which does not allow the solutions to escape to infinity. In both cases, we examine the dependence of the amplitude of the periodic solution on the different parameters of the model and discuss the differences with the linear model. We point out certain undesirable features of the solutions, which have also been alluded to in the literature for the linear Bishop's model, but persist in the nonlinear case as well. Finally, we discuss an alternative hysteretic damping oscillator model first proposed by Reid [2], which appears to be free from these difficulties and exhibits remarkably rich dynamical properties when extended in the nonlinear regime.Comment: Accepted for publication in the Journal of Computational and Nonlinear Dynamic

Money, power, and gender: evidence for influential women represented on inscribed bases and sculpture on Kos

The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.Title from title screen of research.pdf file (viewed on October 30, 2007)Page v list of figures missing from manuscript.Includes bibliographical references.Thesis (M.A.) University of Missouri-Columbia 2007.In this thesis I have attempted to show evidence for a rise of influential women on Kos during the Hellenistic period in the Greek East. I gathered my evidence from sculptural inscriptions and portraits to count the number of females who either were the honorand or the agent in the dedication. I broke these influential females into three categories to facilitate my study: priestess, private, and royal. I use the islands of Delos and Samothrace as comparanda to test if the presence of influential women spreads throughout the Greek East. I also look at the Dodekanesos for comparison and argue for a regional tradition. My research shows that Kos was an anomaly in the Greek world in the number of influential women for a couple of reasons. I believe that the ubiquity of the cult of Demeter on Kos and the Hellenistic queens, especially Egypt, influenced the women who held their own money.Some text in Ancient Greek with English translation

IP-Valuation as a Tool to Sustain Innovation

In recent years, a variety of interests have argued that improved standards are needed for valuing intangible assets. Although there is agreement on this general point, there is persistent divergence among accountants, investors and analysts, economists and other proponents about what intangibles to measure, why to measure them, and how to measure them. This project attempts to lift the question above these divergent perspectives and argues that the larger concern involves how the valuation and capitalization of intangible assets can promote and sustain innovation processes in the economy. This report is based on a position paper presented at the UNECE High Level Task-Force on Valuation and Capitalization of Intellectual Assets, and is supplemented by a commentated presentation of the taskforce s first meeting

ERAWATCH Country Report 2008 - An Assessment of Research System and Policies: Denmark

The main objective of ERAWATCH country reports 2008 is to characterise and assess the performance of national research systems and related policies in a structured manner that is comparable across countries. The reports are produced for each EU Member State to support the mutual learning process and the monitoring of Member States' efforts by DG Research in the context of the Lisbon Strategy and the European Research Area. In order to do so, the system analysis focuses on key processes relevant for system performance. Four policy-relevant domains of the research system are distinguished, namely resource mobilisation, knowledge demand, knowledge production and knowledge circulation. The reports are based on a synthesis of information from the ERAWATCH Research Inventory and other important available information sources.JRC.DG.J.3-Knowledge for Growt