We discuss the relation between a description of the van der Waals interaction between colloidal partic es based on a molecular picture of matter with the Lifshitz description based on quantum electrodynamics. The main observations are as follows: (i) Starting from the Lifshitz description one can derive the exact Hamaker result for the dispersion interaction by applying the Clausius-Mossotti form

How can qualitative and emotional aspects from users be mapped at the same time as they get something meaningful in return? This case study has developed the use of cultural probes [1] with a selection of ten families with small children in the Öresund region. The idea was to evoke thoughts about recreation and living for the probe users while providing information and inspiration to the scientist

Popular Abstract in English Disasters continue to affect urban populations and housing infrastructure. They are intensified by extreme weather events caused by climate change. This situation has made the creation of synergies between climate change adaptation (CCA) and disaster risk management (DRM) urgent. Despite their similarities and the recognised need to unite CCA and DRM efforts, the fieldsAn increasing number of disasters continue to affect urban populations and housing infrastructure. The overwhelming majority of them have been caused by climate-related events. This situation has made the creation of synergies between climate change adaptation (CCA) and disaster risk management (DRM) urgent. Despite the recognised need to unite CCA and DRM efforts, the fields remain separate. Furt

Popular Abstract in Swedish Denna avhandling presenterar några reglertekniska tillämpningar i elkraftsystem. Tillämpningarna är: hur likströmskablar påverkar båtrafik som använder magnetkompasser; frekvensmätning i elkraftsystem; algorithmer för datorbaserade reläskydd; koppling av aktiv last för att dämpa effektpendlingar.This thesis presents some control applications in electric power systems. The work consists of the four parts: interaction between DC cables and ship steering autopilots; frequency estimation; computer relaying; field tests using load switching to damp power oscillations. The first three parts are based on four papers that are given in Appendix A-D. The thesis presents supplementary text to these

This is a major work on the Thirty Years War, focusing on eyewitness accounts.

This work contrasts conservative or minimally mutilating revisions of empirical theories as they are identified in the presently dominant AGM model of formal belief revision and the structuralist program for the reconstruction of empirical theories. The aim is to make understandable why both approaches only partly succeed in substantially informing and formally restraining the issue. With respect

Channel codes in combination with iterative decoding techniques are a both powerful and efficient method to protect data against disturbances in digital communication systems. This thesis deals with various code constructions for block-wise and continuous transmission that have the potential to achieve low bit error rates with iterative decoding, even when operating close to the Shannon limit. Fo