Now showing items 21-40 of 135

• #### Atomic Resolution 3-D Reconstruction of Crystal Grain Boundaries ﻿

(Master thesis, 2018)
Grain boundaries are typical crystal defects, which to a large extent determines the macroscopic properties of the material. In order to control these properties and design new materials, detailed knowledge about the atomic ...
• #### Calculation of Wavefunction Overlaps in First Principles Electronic Structure Codes ﻿

(Master thesis, 2017)
In the work with this Master thesis, expressions for the wavefunction overlap factor between eigenfunctions are obtained. These expressions should be suitable for numeric integration over the Brillouin zone, and are derived ...
• #### Can a meteor measure vertical winds? ﻿

(Master thesis, 2014)
In the first part of this thesis the zonal and meridional tilt of the SKiYMET Meteor Radar at Dragvoll (63.4 N 10.5 E) has been found using two different methods. The average zenith angle model found the zonal tilt to be ...
• #### Chaotic Vortex Dynamics in Bose-Einstein Condensates ﻿

(Master thesis, 2017)
Quantum vortices in superfluid Bose Einstein condensates (BECs) are excellent candidates for studying hydrodynamic phenomena, such as turbulence and chaos, due to the quantization of vortex circulation and the absence of ...
• #### Characterisation of photochromic oxygen-containing yttrium hydride by electron microscopy ﻿

(Master thesis, 2017)
Smart windows based on chromogenic materials have in recent years emerged as promising candidates for the next generation of energy-efficient windows. One group of chromogenic materials are photochromic, which are characterised ...
• #### Charge Diffusion Modelling for a Monolithic Active Pixel Sensor Detector with Application to Proton CT ﻿

(Master thesis, 2017)
A model for charge diffusion in a monolithic active pixel sensor detector was studied with application to a digital tracking calorimeter, proposed for use in proton computed tomography. The model was implemented in C++, ...
• #### Charged Particle Trajectories in the Local Superbubble ﻿

(Master thesis, 2017)
In this thesis we study the propagation of cosmic rays (CR) emitted by sources in the Local Superbubble (LB). There are many bursting sources of CRs inside the LB which may be modelled as a continuous injection of CRs, and ...
• #### Coating for Metal Bipolar Plates in PEM Water Electrolysers ﻿

(Master thesis, 2015)
To increase the efficiency of hydrogen as an energy storage medium, this project's goal is to lower the cost of Proton Exchange Membrane Water Electrolysers (PEMWE) by decreasing the cost of the most expensive component: ...
• #### Comparative Study of CdZnTe Substrates Prepared by Different Methods ﻿

(Master thesis, 2017)
In this study, three different CdZnTe (CZT) substrates were characterised for surface impurity contamination, particles, and defects. The substrates were examined both as-received and after surface pre-growth preparation. ...
• #### Compositional Characterisation of Optical InGaSb-core Microfibres ﻿

(Master thesis, 2017)
This thesis constitutes the first step on the way to understanding and applying the ternary InGaSb-semiconductor alloy in the field of nonlinear fibre optics. This semiconductor material is also interesting for applications ...
• #### Computational fluid dynamics simulations of a Formula Student race car - Effects predicted by the modelling of a steady state cornering vehicle ﻿

(Master thesis, 2016)
In this thesis work an investigation of the aerodynamics of a Fomula Student race car was conducted. The work focused on a computational fuid dynamics evaluation of the aerodynamic effects predicted for the car moving ...
• #### Computing Hyperbolic Lagrangian Coherent Structures in Three-Dimensional Flow Systems ﻿

(Master thesis, 2018)
A generic flow system can be described as a system whose state depends on flowing streams of energy, material, or information. Traditional examples of such systems are the transport of properties such as pressure, temperature, ...
• #### Computing hyperbolic Lagrangian coherent structures in three-dimensional flows from their variational theory ﻿

(Master thesis, 2018)
Lagrangian coherent structures (LCSs) are dynamic surfaces that shape the flow patterns in complex transport systems. Accurate identification of LCSs has applications in particle transport, including dissemination of oil ...
• #### Connectome inference and cluster extraction from calcium imaging ﻿

(Master thesis, 2017)
This is a study of calcium imaging recordings from the spontaneous activity in the habenula and telencephalon region in juvenile and dormant zebrafish. The zebrafish is a model organism that, with some genetic manipulation, ...
• #### Cooling of Transducer array used for Ultrasound radiation Force ﻿

(Master thesis, 2015)
This thesis proposed a way to cool an ultrasound transducer. The cooling method is to have a an area on the casing of the transducer that has a high thermal conductivity, and a high emissivity. This layer is meant to ...
• #### Critical Behaviour of the Local Load Sharing Fiber Bundle Model ﻿

(Master thesis, 2016)
A generalised, history independent, Local Load Sharing Fiber Bundle Model, describing damage propagation in materials as failing fibers under under external load is studied. If the fibers' thresholds $t$ are drawn from an ...
• #### Density of States and Critical Temperature in Superconductor/Ferromagnet Structures with Spin-Orbit Coupling ﻿

(Master thesis, 2015)
We present both an analytical discussion of the weak proximity regime, and a full numerical investigation of the strong proximity regime. The results show that the spin-orbit coupling leaves a clear trace in the density ...
• #### Design and Analysis of Optical Fiber Probes for Glucose Sensing in the Peritoneal Cavity ﻿

(Master thesis, 2016)
This thesis is focused on the design and analysis of optical fiber probes for glucose sensing in the peritoneal cavity. The probes are to be used as absorption cells for near-infrared absorption spectroscopy of peritoneal ...
• #### Design of a 5-axis Manipulator for Use in Angle-Resolved Photoemission Spectroscopy ﻿

(Master thesis, 2016)
The design of a 5-axis manipulator for use in Angle-Resolved Photoemission Spectroscopy (ARPES) is presented along with an outline of the specific challenges it was designed to adress. The theory and nomenclature of X-ray ...
• #### Development of a Long-Wave Infrared Laser Source Based on Optical Parametric Amplification in ZnGeP2 ﻿

(Master thesis, 2016)
This thesis presents the design and implementation of an 8 μm laser source based on nonlinear conversion in ZGP. ZGP is an attractive material for this purpose due to its high nonlinear coefficient, good transmission at ...