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Why do we often get biological growth on thin rendering on thermal insulation constructions?

If one takes a closer look at almost any building facade one will find biological growth. Although this can be seen as an integral part of an antique building, for modern buildings it is in most cases seen as an aesthetical problem. All building facades will most likely be discolored by biological growth by time, but in Sweden we have had many cases of newly built rendered facades that have been d

Reconstruction and visualization of equivalent currents on a radome using an integral representation formulation

In this paper an inverse source problem is investigated. The measurement set-up is a reflector antenna covered by a radome. Equivalent currents are reconstructed on a surface shaped as the radome in order to diagnose the radome's interaction with the radiated field. To tackle this inverse source problem an analysis of a full-wave integral representation, with the equivalent currents as unknowns, i