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Contributions to the generation of semantic editors

The state-of-the-art in development tools today provides users with a large number of both syntactic and semantic services, such as syntax highlighting, name completions and refactorings. Preferably, every language should have sophisticated tool support, but unfortunately, the manual task of tool development is both time-consuming and error-prone, making it too costly for small language communitie

Controlled island operation of part of the 50-kV grid in Southern Sweden

Abstract in UndeterminedThis paper is based on measurements obtained during a test of controlled islanding of part of the 50-kV grid in Southern Sweden. The purpose of the test was to verify operation of generator controls during islanding. The variations in voltage magnitude and frequency are shown as well as flicker severity and very-short variations. A number of performance indices have been ca

Configuration Management Support for Distributed Software Development

In an ever more globalized world, there are many advantages from doing distributed development. However, geographically distributed development is generally recognized as being much more challenging than traditional co-located development and therefore companies are often hesitant to “go distributed”. Configuration management is a basic service that provides the infrastructure for projects and org

Global Stabilization for a Class of Coupled Nonlinear Systems with Application to Active Surge Control

We propose here a new procedure for output feedback design for systems with nonlinearities satisfying quadratic constraints. It provides an alternative for the classical observer-based design and relies on transformation of the closed-loop system with a dynamic controller of particular structure into a special block form. We present two sets of sufficient conditions for stability of the transforme

Coordination in Supply Chains

This thesis deals with a multi-levl inventory system, consisting of one central warehouse and number of retails, facing stochastic demand.