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Elastic nanobeam modelled using peridynamics - length scale effects

The traditional multiscale approach couples two models operating at different scales. An alternative modelling strategy, called peridynamics originally developed by [1], is to continualize the molecular dynamic models, thus replacing inhomogeneities present on smaller length scales by an enhanced continuum description on larger length scales resulting in a nonlocal reformulation of continuum mecha

Control strategies for predictable brownouts in cloud computing

Cloud computing is an application hosting model providing the illusion of infinite computing power. However, even the largest datacenters have finite computing capacity, thus cloud infrastructures have experienced overload due to overbooking or transient failures. The topic of this paper is the comparison of different control strategies to mitigate overload for datacenters, that assume that the r

Modeling and Optimization with Optimica and JModelica.org—Languages and Tools for Solving Large-Scale Dynamic Optimization Problems

The Modelica language, targeted at modeling of complex physical systems, has gained increased attention during the last decade. Modelica is about to establish itself as a de facto standard in the modeling community with strong support both within academia and industry. While there are several tools, both commercial and free, supporting simulation of Modelica models few efforts have been made in th

Review of Eva Bergenlöv, Skuld och oskuld. Barnamord och barnkvävning i rättslig diskurs och praxis omkring 1680-1800. Lund 2004

Bergenlövs doktorsavhandling i historia har analyserat ett stort lokalt material, men kombinationen av barnkvävning och barnamord kan ifrågasättas. Hon har strävat efter att göra den kyrkliga verkligheten rättvisa, men betraktar prästerna, socknens äldste och sockenstämman som ”den kyrkliga rätten på sockennivå” eller”den kyrkliga rättvisan” parallellt med korrekta benämningar som ”sockenrättskipn

A comparison of polar transmitter architectures using a GaN HEMT power amplifier

In this paper three transmitter architectures are compared, that each use the low-frequency envelope and high-frequency phase component of an RF signal. A power amplifier (PA) with Pulse Width Modulation by Variable Gate Bias (PWMVGB) is compared to an Envelope Elimination and Restoration (EER) and Envelope Tracking (ET) configuration. The test circuit is implemented using a discrete GaN HEMT powe