A program that automatically detects auroral events in all-sky images taken by the all-sky camera of IRF has been written. Current programs that automatically detect the aurora in all-sky images using the RGB color system often miss strong aurora and sometimes interprets clouds as aurora. To improve …

The objective of this study was to introduce a new iterative method to reconstruct multi leaf collimator (MLC) positions based on low resolution ionization detector array measurements and to evaluate its error detection performance. The iterative reconstruction method consists of a fluence model, a detector …

Het gaan met een bovenbeenprothese is zwaar en ingewikkeld. Er wordt veel coördinatie en timing gevraagd van de prothesegebruiker. Omdat de beenspieren geen moment meer kunnen geven aan de knie, is het buigend moment rond de knie altijd een probleem voor de gebruiker. Dit verslag moet inzicht geven over …

Earth’s magnetic field, also known as the geomagnetic field, interacts with the solar wind, a stream of charged particles originating from the Sun. The interaction causes the geomagnetic field to undergo variations, called geomagnetic disturbances or geomagnetic activity. This bachelor thesis features …

A Quad Focus GridPix Gaseous Tracking Detector is under construction, to allow calibration and test beam measurements to validate the working principles of the (quad) GridPix detectors while using a focused electric field. The development is well on its way: both measurements should be able to be conducted …

Dit Raakproject beoogt door middel van praktijkgericht onderzoek MKB-bedrijven in de agri & food -sector in staat te stellen om eindgebruikers (consumenten) effectiever te betrekken bij productinnovatie. Tot nu toe doen MKBers dat te weinig omdat ze onvoldoende kennis hebben van klantonderzoek en omdat …

In order to be able to integrate ICT into Inquiry Based Science Education (IBSE), teachers need much time and support for mastering ICT tools, learning the basis of IBSE, and getting experience in applying these tools in pupil investigations. For this purpose, we have developed a course within the teacher …

The challenges of physics teacher education are obvious: 1) physics teaching in schools is often uninspiring and ineffective, the many brilliant ideas for exciting physics are underused; 2) in many countries there is a shortage of qualified physics teachers, enrolments in physics teacher education are …

Military systems are operated in a variable way and operating conditions are generally quite demanding. At the same time, the requirements in terms of availability and reliability are high, and strict budget limitations make that the maintenance activities must be carefully planned and executed. The …

Scanning tunneling microscopy is an important and enabling tool for condensed matter physics and surface science. The low temperature STM in Leiden (Prof. J. Van Ruitenbeek and Prof J. Aarts) is used for research in the field of atomic/molecular electronics and superconductivity. The current low temperature …