Research on a ferroacoustic information storage system

Mill-processed media and thin films for improving speed and data densities for ferroacoustic memory information storage uni

Consolidation and Market Power of Energy Utilities - The case of US-American and German Utility Takeovers

Between 1990 and 2002 a wave of takeovers was observed in the North American and European energy utilities market. We analyze the impact of these takeovers on market power, studying 70 takeovers of US-American and 69 takeovers of German energy utilities by applying event study methodology. Stock price reactions of acquiring and target firms as well as of their competitors are used as an indicator for market power. While we do not find any significant results pointing in this direction for transactions in the US, our findings clearly indicate that the potential to increase market power is indeed an important motive for takeovers within the German energy utilities market.acquisitions, energy utilities, market power, oligopoly, regulation

Progress in Modeling Very Low Mass Stars, Brown Dwarfs, and Planetary Mass Objects

We review recent advancements in modeling the stellar to substellar transition. The revised molecular opacities, solar oxygen abundances and cloud models allow to reproduce the photometric and spectroscopic properties of this transition to a degree never achieved before, but problems remain in the important M-L transition characteristic of the effective temperature range of characterizable exoplanets. We discuss of the validity of these classical models. We also present new preliminary global Radiation HydroDynamical M dwarfs simulations.Comment: Submitted to Mem. S. A. It. Supp

Research on a ferroacoustic information storage system Final report, 10 Jun. - 10 Dec. 1964

Ferroacoustic memory storage description and thin film testing for improved speed and data densit

Dynamic model atmospheres of cool giants

Cool giant stars are highly dynamical objects, and complex micro-physical processes play an important role in their extended atmospheres and winds. The interpretation of observations, and in particular of high-resolution IR spectra, requires realistic self-consistent model atmospheres. Current dynamical models include rather detailed micro-physics, and the resulting synthetic spectra compare reasonably well with observations. A transition from qualitative to quantitative modelling is taking place at present. We give an overview of existing dynamical model atmospheres for AGB stars, discussing recent advances and current trends in modelling, including 3D 'star-in-a-box' models. When comparing synthetic spectra and other observable properties resulting from dynamical models with observations we focus on the near- and mid-IR wavelength range.Comment: 12 pages, 3 figures, to be published in Proc. of ESO Workshop on High Resolution Infrared Spectroscopy in Astronomy, eds. Kaeufl H.U., Siebenmorgen R., Moorwood A., ESO Astrophysics Symposia, Springe