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Time domain analysis of open loop distortion in class D amplifier output stages

During the long history of Class AB amplifiers, many topology improvements have been developed with the aim of reducing open-loop THD. As Class D amplifiers become widely used, a new learning of such improvements is needed, since the basic distortion mechanisms are very different from those of Class AB amplifiers. This is even more important with Class D designs because the very high feedback loop

Samtal om språkbruk och språkriktighet som en effekt av olika övningsuppgifter

Det här föredraget argumenterar att noggrant utformade översättningsövningar kan ha en speciell (men dock begränsad) plats i språkundervisningen, i alla fall på de högre nivåerna på gymnasiet och på universitetsnivå. Förutsättningen är att studenter och lärare delar samma modersmål eller att åtminstone alla i klassrummet har god kunskap i det som är de flesta studenters modersmål. Föredraget baser

I want one too! Domestication of Assistive Robots

Abstract in UndeterminedThe aim of the PhD project is to understand and learn about the characteristics that influence old adults’ acceptance of assistive robots and of robots as social companions. It is also to explore participatory design methods in order to involve old adults in the design process of new technologies. The goal is to apply/implement the results in two robotics systems developed

General complementarity and the double-prism experiment

The interesting double-prism experiment of Ghose, Home, and Agarwal 5) has been suggested 5, 8, 16, 7, 6) as a challenge to Bohr´s views of complementarity. With the linguistic complementarity 14) as a general notion of complementarity, we analyze Bohr´s views of complementarity. We find that a careful formulation of Bohr´s wave-particle complementarity, with an explicit characterization of measur