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A Benders Decomposition Method for a Multi-stage Stochastic Energy Market Equilibrium Problem
(Master thesis, 2014)In this thesis, a stochastic energy market equilibrium model is developed and implemented in GAMS. The model involves multi objective optimization and is solved as a mixed complementarity problem. To provide an efficient ... -
A Bivariate Analysis of the Homogeneous Plane-Wave Assumption in Magnetotelluric Theory
(Master thesis, 2015)The magnetotelluric method is an electromagnetic induction method used to image subsurface resistivity. It utilizes Earths' natural time-varying electromagnetic field as a source. The fields propagating into the subsurface ... -
A Bosonic Coherent State Path Integral Representation for Spin Systems based on a Projection Operator Implementation of the Schwinger boson number constraint
(Master thesis, 2018)The path integral single spin partition function in the basis of boson coherent states, for a general normal ordered two-mode Schwinger boson Hamiltonian, has been computed. Within the initial phase of the calculational ... -
A bridge between statistical learning and agent based modelling in stock market predictions
(Master thesis, 2016)The research related to agent based modelling and statistical learning has increased in the recent years, as alternatives to main stream econometrics. This project combines the three for constructing and evaluating a ... -
A Comparison of Biological Dose Estimates in Proton and Carbon Ion Therapy Based on Averaged and Full Linear Energy Transfer Spectra
(Master thesis, 2015)Radiotherapy with ions, also known as particle therapy, is increasing rapidly. Shifting from photons to protons and carbons is not only a great technological transition, but also a shift in physics and in radiobiology. ... -
A comparison of Gravity Wave Parameters derived from the Analysis of a Three-Field Photometer with Imagers
(Master thesis, 2015)A method for preprocessing and analysing a few select fields in airglow intensity images from an all-sky imager was developed and utilized. Waves detected with a three-field analysis were compared with those waves ... -
A comparison of two parallel solution schemes for the advection-diffusion equation - Velocity guided random walk of paticles vs finite volume discretization on Cartesian grid
(Master thesis, 2017)In this thesis two methods for solving the diffusion-advection equation was implemented using MPI. The two methods was a velocity guided random walk of particles and solving the advection-diffusion equation on a grid. Both ... -
A consistent reduction of the two-layer shallow-water equations to an accurate one-layer spreading model
(Journal article; Peer reviewed, 2019)The gravity-driven spreading of one fluid in contact with another fluid is of key importance to a range of topics. These phenomena are commonly described by the two-layer shallow-water equations (SWE). When one layer is ... -
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
(Journal article; Peer reviewed, 2016)The modification of soft hydrogels with hard inorganic components is a method used to form composite materials with application in non-load-bearing bone tissue engineering. The inclusion of an inorganic component may provide ... -
A CUDA Back-End for the Equelle Compiler.
(Master thesis, 2014)As parallel and heterogeneous computing becomes more and more a necessity for implementing high performance simulators, it becomes increasingly harder for scientists and engineers without experience in high performance ... -
A Density Functional Theory Study of Hydrogen Transfer and Rotational Barriers in Vitamin E-like Molecules
(Master thesis, 2011)A study of the antioxidant property of two vitamin E simplifications with density functional theory has been done. In one of the simplifications the phytyl tail and the methyl group on the heterocyclic ring in vitamin E ... -
A Framework for Constructing and Evaluating Probabilistic Forecasts of Electricity Prices: A Case Study of the Nord Pool Market
(Master thesis, 2011)A framework for a 10-day ahead probabilistic forecast based on a deterministic model is proposed. The framework is demonstrated on the system price of the Nord Pool electricity market. The framework consists of a two-component ... -
A GPU Accelerated Simulator for CO2 Storage
(Master thesis, 2014)The goal of this thesis has been to develop a fast simulator for large-scale migration of CO2 in saline aquifers. We have also focused on being able to let the CO2 storage atlas from the Norwegian Petroleum Directorate ... -
A high precision method for quantitative measurements of reactive oxygen species in frozen biopsies
(Journal article; Peer reviewed, 2014)Objective: An electron paramagnetic resonance (EPR) technique using the spin probe cyclic hydroxylamine 1-hydroxy-3-methoxycarbonyl-2,2,5,5-tetramethylpyrrolidine (CMH) was introduced as a versatile method for high ... -
A hybrid aluminium alloy and its zoo of interacting nano-precipitates
(Journal article, 2015)An alloy with aluminium as its base element is heat treated to form a multitude of precipitate phases known from different classes of industrial alloys: Al–Cu(–Mg), Al–Mg–Si–Cu, and Al–Zn–Mg. Nanometer-sized needle-shaped ... -
A K-Wishart Markov random field model for clustering of polarimetric sar imagery
(Conference object; Peer reviewed, 2011) -
A lumped parameters model for cerebral blood flow in neonates and infants with patent ductus arteriosus
(Master thesis, 2019)En lumped parametermodell er utviklet for a ̊ studere dynamikken til en pulserende strømning i et sirkulasjonssystem, inkludert det cerebrale vaskulære nettverket. Denne modellen ble utviklet fra en forenklet anatomisk ... -
A minimal model for extragalactic high-energy particles
(Journal article; Peer reviewed, 2017)We explain in a unified way the experimental data on ultrahigh energy cosmic rays (UHECR) and neutrinos, using a single source class and obeying limits on the extragalactic diffuse gamma-ray background (EGRB). If UHECRs ... -
A Model for the Mixing of Black Carbon Aerosols and Mineral Dust Particles in the Atmosphere
(Master thesis, 2016)The process when freshly emitted black carbon particles are forming clusters and the mixing of these black carbon clusters and mineral dust particles has been simulated for a two-dimensional system. This has been done by ... -
A Monte Carlo Algorithm for Immiscible Two-Phase Flow in Porous Media
(Journal article; Peer reviewed, 2017)We present a Markov Chain Monte Carlo algorithm based on the Metropolis algorithm for simulation of the flow of two immiscible fluids in a porous medium under macroscopic steady-state conditions using a dynamical pore ...