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In the framework of this thesis, the optimization of the etching process of GaN for FinFET applications has been investigated. FinFETs are transistors with a vertical architecture in the shape of fins. These fins are fabricated by etching a pattern into a GaN substrate. The etching is carried out in two steps, a dry etch and a wet etch. In this thesis, these etching steps have been carried out whi
The building industry, like many others, are currently experiencing the effects of the digitalization, and the increased spread of smart buildings is a result of this. Much research has been done on smart buildings and their predecessors intelligent buildings, but there is limited research available on how entrance systems should be designed for smart buildings, especially regarding their connecte
Climate change is a long-term challenge that requires urgent actions. An increased amount of greenhouse gases in the atmosphere, causing changes in the climate system such as melting glaciers and extreme weather conditions, are correlated to economic growth. To mitigate climate change, there is a need to evolve efficient strategies to reduce greenhouse gas emissions from companies within all branc
The thesis introduces a range of communication protocols used to implementing smart homes currently available on the market. Two protocols are chosen and theoretically analysed in depth. The analysis both describes how the protocols works and describes the measures taken in order to protect it against attacks from third parties. The theoretical evaluation analyses how susceptible the protocols are
This study aims to evaluate the usability of ecotope maps to predict aquatic ecological consequences of floodplain landscape changes. If successful, this method will be applied to evaluate ecological rehabilitation measures that will be carried out in order to improve the ecological status of the large river plains. Ecological value is reflected in indicator metrics for fish, aquatic vegetation, a
The MAX IV facility is a 3rd generation state-of-the-art synchrotron light source currently under construction in Lund, Sweden. The MAX IV 3 GeV storage ring has a large negative natural chromaticity, which has to be corrected to positive values to prevent head-tail instabilities. On the other hand, high linear chromaticity can lead to a large tune footprint limiting Touschek lifetime. Therefore,
The European Union is often criticized for its democratic deficit. This criticism has led to a process of including civil society in European governance through consultations, round table discussions and civil dialogue. These steps of inclusion have been oriented towards organized civil society. This study explores the European Citizens’ Initiative (ECI) a new tool for participation available to a
The paper researches the viable options for Hamas as a case study in the development of a peace paradigm through answering the question of ‘What should Hamas do, while under siege, to act responsibly in favor of the interests of its constituency?’ By comparing the logics of social constructivist and realist theories as methods of analysis in addressing the formulation, operationalization and socia
The chirality-flow formalism provides a simple but efficient way to rewrite and evaluate Feynman diagrams and has recently been shown to also optimize automated numerical scattering matrix element evaluations in massless tree-level QED. In this thesis we extend the numerical QED model to massless tree-level QCD in the MadGraph5_aMC@NLO framework. It is shown that a good gauge choice for external g
With increasing pressure to get rid of the world’s dependence on fossil fuels to reach the world’s climate goals, the use of alternative fuels for propulsion are needed. This is a challenge for the maritime industry, where ferries have good properties to become renewable by the usage of batteries. Their routes are mostly fixed routes and with good infrastructure established at each stop, fully bat
NMDA receptors are part of the family iGluRs that regulate the flow of positive ions, such as Na+, K+ and Ca2+, by ligand gating. Upon activation with Glutamate, the channel opens, and a flowthrough of ions occurs. NMDA receptors are unique in that they require the co-agonist glycine for activation and that they exhibit voltage-dependent ion flow due to Mg2+ blockade. The NMDA receptors have three
The telecom industry falls among one of the most progressive markets that operates at the level of advanced technologies and has the fastest rate of growth all over the world, including from the perspective of 5G technology, the integration of digital products, and the constant increase in demand for broadband internet. In such a competitive environment, customer attrition has been known to be a m
The aim of this project is to explore the tiled stove as a historical everyday object and examine its potential influence on contemporary design. The project further investigates direct heating using infrared panels. The result is a fusion of tradition and innovation, combining the material and visual qualities of tiled stoves with contemporary heating technology. The final design consists of tw
The use of technology, specifically machine learning, to address complex issues in developing regions has become increasingly prominent. In the context of wildlife conservation, combating poaching has emerged as a significant application of such technology. This research project aims to develop machine-learning-based low-cost antipoaching solutions. It presents three case studies, each exploring a
A Free Electron Laser (FEL), is a device that generates extremely coherent and brilliant radiation using electrons accelerated to relativistic velocities in a particle accelerator. The process utilises similar equipment to what is used at a synchrotron source like MAX IV, but in addition there is an interaction between the relativistic electron beam and the generated radiation to achieve an expone
This thesis presents and tests the convergence rate of the Dirichlet-Neumann algorithm for two Poisson equations coupled by transmission boundary conditions. Three second order discretisation methods are used when analyzing the convergence: standard equidistant finite difference, standard adaptive linear finite element, and standard adaptive finite volume discretisation of Poisson's equation.
This thesis explores the possibility for (re)defining the relationship between humans and robots with conversational interfaces. It does so by looking at the creation process of a voice and text-based virtual assistant for tourists from the perspective of critical posthumanism and posthuman performativity. In a reflexive fashion, I analyze my involvement in a tech start-up, in order to argue that,
Anthropogenic land-use covers a constantly increasing fraction of the terrestrial surface area. By employing a dynamic global vegetation model, human-induced changes in the terrestrial water balance as compared to an undisturbed scenario were simulated. The results suggest that humanity is a main driver of change in the terrestrial water balance in general and green water in particular. Most strik
