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Traditionally, control loops are closed using periodic sensing and actuation. When communication resources are scarce, however, much may be gained from transmitting only when something important has happened in the loop. This paper presents a simple model of the interference between event-based control loops caused by sharing a common medium, based on the coupled dynamics of a Markov chain represe
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Rapport i Högskolepedagogisk introduktionskurs / Report written in course "Introduction to Teaching and Learning in Higher Education". Undervisningen i en befintlig laboration i våglära relateras till pedagogisk litteratur, kursens mål och egna erfarenheter för att formulera ett förslag på betygsgrunder specifikt för denna laborations rapport. Förhoppningen är att öka jämförbarheten mellan betyg f
The magnetization of a ferro- or ferri-magnetic material has been modeled with the Landau-Lifshitz-Gilbert (LLG) equation. In this model demagnetization effects are included. By applying a linearized small signal model of the LLG equation, it was found that the material can be described by an effective permeability and with the aid of a static external biasing field, the material can be switched b
Note on the right identification of the Tollund man belonging to the "bog people" cf Seamus Heaney, who confuses The Grauballe man and the Tollund man in a poem.
