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Automated Segmentation for Quantitative Susceptibility Mapping in Healthy Volunteers at 7T
(Master thesis, 2023)Parkinsons sykdom (PD) er en utbredt nevrodegenerativ lidelse og er assosiert med opphopning av jern i subkortikale hjernestrukturer. MR-avbildningsmetoden Quantitative Susceptibility Mapping (QSM) gir kvantitative mål for ... -
Automated Segmentation of Metastatic Lymph Nodes in Lymphoma Patients
(Master thesis, 2022)Ved å bruke det kunstige nevrale nettverket 2D U-Net, tester denne masteroppgaven nøyaktigheten til 2D U-Net med formålet om å automatisk segmentere ondartede svultser i PET/MR-bilder av pasienter med metastatisk lymfom. For ... -
Automated segmentation of tumors in dynamic contrast-enhanced MRI of high-risk breast cancer patients undergoing neoadjuvant therapy
(Master thesis, 2021)Brystkreft er den vanligste kreft blant kvinner, med nesten 3700 nye tilfeller diagnostisert årlig i Norge. Innenfor denne gruppen diagnostiseres mellom 5 og 10% på stadium III med lokalavansert brystkreft. Presurgical ... -
Automated slice-specific z-shimming for functional magnetic resonance imaging of the human spinal cord
(Peer reviewed; Journal article, 2022)Functional magnetic resonance imaging (fMRI) of the human spinal cord faces many challenges, such as signal loss due to local magnetic field inhomogeneities. This issue can be addressed with slice-specific z-shimming, which ... -
Automatic Detection of Air Emboli in The Cerebral Circulation in Newborns By Ultrasound Doppler Technique
(Master thesis, 2022)Når spedbarn er født med hjertesvikt eller en annen form for defekt i hjertet kan det være nødvendig med kateterintervensjon eller hjertekirurgi. Slike inngrep kan føre til at luftbobler blir introdusert inn i blodstrømmen. ... -
Automatic imaging of Tissue Microarrays using non-linear Microscopy
(Master thesis, 2015)St. Olavs hospital has supplied a dataset of 2703 tissue samples from the tumor periphery from approximately 900 patients organized on tissue microarrays (TMA). In this project we wish to examine all these tissue samples ... -
Automatic segmentation of human knee anatomy by a convolutional neural network applying a 3D MRI protocol
(Peer reviewed; Journal article, 2023)Background: To study deep learning segmentation of knee anatomy with 13 anatomical classes by using a magnetic resonance (MR) protocol of four three-dimensional (3D) pulse sequences, and evaluate possible clinical usefulness. ... -
Automatic VMAT planning in RayStation for locally advanced cervical cancer
(Master thesis, 2022)Formål: Denne studien hadde som mål å utvikle et automatisk planleggingsskript for volumetrisk modulert bueterapi (VMAT) av lokalavansert livmorhalskreft (LACC) for bruk i RayStation, for å erstatte manuell VMAT-planlegging ... -
Axisymmetric smoothed particle magnetohydrodynamics
(Peer reviewed; Journal article, 2022)Many astrophysical and terrestrial scenarios involving magnetic fields can be approached in axial geometry. Although the smoothed particle hydrodynamics (SPH) technique has been successfully extended to magnetohydrodynamics ... -
Backscattering in helical edge states from a magnetic impurity and Rashba disorder
(Journal article; Peer reviewed, 2016)Transport by helical edge states of a quantum spin Hall insulator is experimentally characterized by a weakly temperature-dependent mean free path of a few microns and by reproducible conductance oscillations, challenging ... -
Backward magnetostatic surface spin waves in coupled Co/FeNi bilayers
(Peer reviewed; Journal article, 2020)Spin waves (SWs) in coupled Co/FeNi bilayers are probed by the Brillouin light‐scattering technique. Two types of SWs, magnetostatic surface spin waves (MSSWs) and perpendicular standing SWs, are identified. The dispersion ... -
Bacterial Microarrays by Microcontact Printing: Development of a Method for Immobilizing Live Bacteria on Microarrays
(Master thesis, 2014)Traditional microbiological experimental methods generally reveal population-wide statistics and are not capable of revealing variations between individual cells. In an effort to address this, a cheap, quick and easy means ... -
Band gaps in jagged and straight graphene nanoribbons tunable by an external electric field
(Journal article; Peer reviewed, 2015)Band gap control by an external field is useful in various optical, infrared and THz applications. However, widely tunable band gaps are still not practical due to a variety of reasons. Using the orthogonal tight-binding ... -
Band-edge modification and mid-infrared absorption of co-deposited FexZn1-xS thin films
(Journal article; Peer reviewed, 2015)The bandgap of iron-doped ZnS has been reported by others to change significantly under the addition of a few atomic percent of iron, which would have significant implications for solar energy. Here, thin films of FexZn1-xS ... -
Bandgap measurement of high refractive index materials by off-axis EELS
(Journal article; Peer reviewed, 2017)In the present work Cs aberration corrected and monochromated scanning transmission electron microscopy electron energy loss spectroscopy (STEM-EELS) has been used to explore experimental set-ups that allow bandgaps of ... -
Bandgap measurement of high refractive index materials by off-axis EELS
(Journal article; Peer reviewed, 2017)In the present work Cs aberration corrected and monochromated scanning transmission electron microscopy electron energy loss spectroscopy (STEM-EELS) has been used to explore experimental set-ups that allow bandgaps of ... -
Behaviour of the S1 and S2 Components of the Semidiurnal Tide in the MLT
(Master thesis, 2016)9 years (2000-2008) of wind data from a longitudinal chain of up to 10 Super Dual Auroral Radar Network (SuperDARN) radars spanning over 184 degrees in longitude and ranging in latitude from 51.4 - 65.7 degrees N is used ... -
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach
(Journal article; Peer reviewed, 2021)This study investigates the use of a vespagram-based approach as a tool for multi-directional comparison between simulated microbarom soundscapes and infrasound data recorded at ground-based array stations. Data recorded ... -
Beregninger med sikte på et DFT-basert reaktivt kraftfelt for strontium, bly, titan og oksygen.
(Master thesis, 2009)Denne oppgaven tar utgangspunkt i et prosjekt som hadde til hensikt å studere groing av en PbTiO3-perovskittfilm på kubisk SrTiO3, hvor bruksområdene for dette inkluderer minnehåndtering i databrikker og lignende. Denne ... -
Beregningsorientering i fysikkutdanning
(Master thesis, 2022)Realfagsutdanningen blir i større og større grad påvirket av teknologisk utvikling for å tilpasse seg arbeidslivets behov. Moderne teknologi gir mulighet for folk flest til å gjøre enorme beregninger, og det er av stor ...