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Education is by the UN stated to be the foundation to creating sustainable development. Lately, there has been a tremendous increase in the use of information and communications technology (ICT) for educational purposes worldwide, but as many countries lag behind both in terms of uptake and usage of ICT, this limits their populations’ chances to participate. Given this, the aim of this thesis was
To reach the Paris-agreement target of no more than a 1,5 to 2 degree rise in global temperature, CO2 emissions need to reach net zero by 2050. This includes emissions from aviation. The International Civil Aviation Organisation (ICAO) has been designated emission reduction responsibility for transnational emissions. It is crucial to keep ICAO accountable for their responsibilities and for the pol
While perovskite solar cells have become increasingly more efficient and popular, electrical characterisation of the semiconductor properties of perovskites has been limited due to the instability of the material. In this work, multiple approaches for creating such electrical test structures from perovskites are discussed. The chemical processing limitations for perovskites are laid out and common
Thin-Film Transistor (TFT) technology refers to process and manufacture transistors, circuits, Integrated circuits (ICs) using thin-film organic or metal-oxide semiconductors on different substrates, such as flexible plastic foils and rigid glass substrates. TFT technology is attractive and used for applications requiring flexible, ultrathin ICs to enable seamless integration into devices. TFT t
In the last 30 years, a new mobile communications generation has been developed every 7 to 10 years. The last one that is currently under development is the Fifth Generation. This generation aims to fulfill a wide range of requirements for different use cases. To that end, a new radio access technology called New Radio (NR) has been developed. The main design principle behind NR is to allow enoug
This thesis concerns the evaluation of cost functionals on H2 when designing optimal controllers using finite Youla parameterizations and convex optimization. We propose to compute inner products of stable, strictly proper systems via solving Sylvester equations. The properties of different state space realizations of Laguerre filters, when performing Ritz expansions of the optimal controller are
Multiple modern methods of statistical feature extraction and machine learning are applied to classification of encoding and retrieval of episodic memories using electroencephalogram (EEG) recordings. Raw data, different time-frequency methods, and multiclass common spatial patterns are used for statistical feature extraction. For each type of feature extraction multiple machine learning algorithm
The issue of thin capitalization has risen in importance in recent years, to the point that it warranted international action. That action came in the form of Action 4 of the OECD BEPS Project, of Article 4 of the EU ATAD and of the new interest deduction limitation rules in the national Swedish legislation. The main part of the chosen rule in all these instances disallows interest deduction over
In this paper we investigate how intrinsic camera calibration and hand-eye calibration can be performed on a robot vision system using the simplest possible motions and a planar calibration object The standard methods on plane-based camera calibration are extended with theory on how to use pure translational motions for the intrinsic calibration and we see how hand-eye calibration can be performed
The generalized Pareto distribution (GPD) is a two-parameter family of distributions which can be used to model exceedances over a threshold. We compare the empirical coverage of some standard bootstrap and likelihood-based confidence intervals for the parameters and upper p-quantiles of the GPD. Simulation results indicate that none of the bootstrap methods give satisfactory intervals for small s
Nanosized soot particles are a serious health hazard in urban air. Upon inhalation they can penetrate deep into the lungs and their fat solubility makes possible their accumulation in other organs such as the brain. For this reason legislation has continuously reduced the allowable emission levels and raised requirements for reporting the status of the exhaust system (OBD, on board diagnostics) in
A research program for the development of a method for computer-aided planning of homes and working environments for disabled people has recently started. The method is being tested at rehabilitation centres in realistic planning situations and has obtained positive response from both the disabled persons and the professionals such as occupational therapists. The requirements and features of the c
The main concern of this paper is the joint utilization of new methods of research and analysis in the study of value. 40 persons, varying from age 20 to 70 and from different professional domains were studies by the use of a three-images technique inspired by Murray´s TAT. The aim was to unveil the implicit dimensions of work related values. Three analytical methods (content analysis, lexical ana
Abstract is not available
Abstract is not available
Outdoor ranges are commonly used for accurate RCS measurements of full scale vehicles with or without camouflage. Furthermore, ISAR processing is often used to obtain high quality imagery of the objects. However, these images do not show the vehicles in the environment where they are supposed to operate. This paper describes a ground based SAR system that is used to make accurate measurements on v
