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Modelling of Two-Phase Flows with Modelica

Modelica-TM is an object-oriented language for modeling physical systems that was designed in the last years with the goal to become a standardized multi-domain modeling language. This paper describes a robust model for homogenous and inhomogenous two phase flows with dynamic or static slip correlation. It was developed in the context of developing a Modelica base library for thermo-hydraulic appl

Robust On-Line Estimation

In the presence if poor excitation and abrupt changes of a time-varying system the Recursive least square (RLS) with forgetting factor is not able to track the parameters in a suitable way. The purpose of this thesis is to investigate different kinds of proposals of algorithms to deal with the phenomenons arising, such as estimator windup or too slow convergence of the estimations. Attention is al

Analog and Digital Signal Processing in an Optical Application

The thesis consists of two parts. Registration of Digital Images: Registration of images is a fundamental task in image processing. This is to match two or more images taken, for example, at different times, from different sensors or from different points of view. The methods used to register images are striving for a similarity metric indicating when the images are correctly registered. A similar