Browsing Institutt for fysikk by Title
Now showing items 842-861 of 2661
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Estimating stratospheric polar vortex strength using ambient ocean-generated infrasound and stochastics-based machine learning
(Journal article; Peer reviewed, 2024)There are sparse opportunities for direct measurement of upper stratospheric winds, yet improving their representation in subseasonal-to-seasonal prediction models can have significant benefits. There is solid evidence ... -
Estimation of Design Snow Loads on Offshore Structures in the Barents Sea
(Master thesis, 2016)Snow accumulating on offshore structures can reduce freeboard and stability, block equipment and valves, and reduce operability of the platform or ship. It is thus important to evaluate snow conditions before starting long ... -
Estimation of nonlinear bulk elasticity parameter for cancer tumors
(Master thesis, 2021)Tofrekvens-ultralyd har blitt brukt til å estimere ikke-lineær bulk elastisitet for adenokarsinom i bukspyttkjertelen (PDAC svulst), den vanligste krefttypen i bukspyttkjertelen. Svulstene har vokst i KPC-mus, men målingene ... -
Estimation of Skin Optical Parameters for Real-Time Hyperspectral Imaging Applications using GPGPU Parallel Computing
(Master thesis, 2013)Hyperspectral imaging with a high spatial and spectral resolution can be used to analyze materials using spectroscopic methods. This can be applied on skin as a general purpose real-time diagnostic tool.Light transport ... -
Et katapultprosjekt: hva kan det bidra med i fysikkfaget?
(Master thesis, 2008)Denne oppgaven tar for seg et undervisningsopplegg laget for å teste ut hvordan et katapultprosjekt kan bidra til elevers kunnskaper, ferdigheter og motivasjon i fysikkfaget. Norske elever har gjort det jevnt over dårligere ... -
Et kritisk og konstruktivt blikk på naturfaget i norsk skole
(Chapter, 2021) -
Evaluating template matching for orientation analysis based on electron diffraction
(Master thesis, 2020)For å relatere strukturelle trekk ved et materiale til dets eganskaper er fase- og orientasjonskart mye brukt, for å få informasjon om fordelingen av korn, krystallografisk tekstur og mulige sammenhenger mellom orientasjoner. ... -
Evaluation of Acousto-Optic Tunable Filter for Wavelength Dependent Measurements of Waveguides
(Master thesis, 2017)The main part of the work done for this master's thesis have been to implement and characterize a setup that would allow for wavelength dependent measurements of losses in waveguides. A plasma enhanced white light source ... -
Evaluation of ORR active sites in nitrogen-doped carbon nanofibers by KOH post treatment
(Journal article; Peer reviewed, 2018)Oxygen reduction on N-doped carbon nanomaterials is believed to take place at either N-centered active sites (C-Nx) or Fe-centered active sites (Fe-Nx). In this work the origin of the oxygen reduction on nitrogen-doped ... -
Evaluation of Reoxidation Thresholds for γ-Al2O3-Supported Cobalt Catalysts under Fischer - Tropsch Synthesis Conditions
(Journal article; Peer reviewed, 2017)Size-dependent phenomena at the nanoscale influence many applications, notably in the science of heterogeneous catalysis. In cobalt-based Fischer–Tropsch synthesis (FTS), the size of Co nanoparticles (NPs) dictates to a ... -
Evaluation of Robustness in Volumetric Modulated Arc Therapy (VMAT) plans for Head and Neck Cancer Patients
(Master thesis, 2017)Purpose: To investigate the robustness of volumetric modulated arc therapy (VMAT) plans for head and neck (H&N) cancer patients. Methods and materials: The patient population consisted of 15 patients with H&N cancer having ... -
Evanescent light field trapping and transport of micro- and nanocrystals of biological macromolecules on a waveguide for serial crystallography.
(Master thesis, 2016)A microfluidic evanescent field optical tweezer system was tested and developed for sample delivery of micro- and nanocrystals in serial crystallography. The fluid line was enforced, and the setup changed from vacuum ... -
Evidence for egg-box-compatible interactions in calcium-alginate gels from fiber X-ray diffraction
(Peer reviewed; Journal article, 2007)The structures of guluronic-acid-rich alginate in the acid and calcium forms were investigated using fiber X-ray diffraction. Data recorded for alginate fibers in the acid form show a repeat along the chain axis of c = ... -
Evidence of chromium-cobalt binary cluster formation by pulsed laser evaporation
(Journal article, 2015)We report on the use of time of flight mass spectrometry to investigate the cluster spectrum resulting from Nd-YAG ablation of a Co-Cr target. Cr+ clusters dominated the spectrum, with Co+ clusters as the second most intense ... -
Evolution in Cosmic Noise Absorption During Periodic Events
(Master thesis, 2019)The evolution of energetic electron precipitation in the ionosphere above Lapland was examined by using 5 magnetometers and 3 riometers in the period from 2008 to 2013. The magnetometers gave rise to the IL index, which ... -
The evolution of precipitates in an Al–Zn–Mg alloy
(Peer reviewed; Journal article, 2023)The precipitation sequence in Al–Zn–Mg alloys has been subject to many revisions over the years as more structural details of the early-stage Guinier-Preston (GP) zones and precipitates have been uncovered. To further ... -
Evolution of quasi-history of the Planck blackbody radiation equation in a physics textbook
(Journal article; Peer reviewed, 2018)In physics textbooks, the emphasis is normally placed on the physics. In order to give the subject a deeper dimension, the inclusion of history and persons involved in the development has been increasing. However, the ... -
EXAFS and XRD studies in synthetic Ni-Fluorohectorite
(Journal article, 2014)In the present work the synthetic clay mineral fluorohectorite was studied by means of an extended X-ray absorption fine structure (EXAFS) in a powder sample with the intention to observe the number of neighboring atoms ... -
Examining immune responses and nanoparticle uptake in tumors caused by Acoustic Cluster Therapy
(Master thesis, 2020) -
Examining the three-dimensional structure of an AlGaAs shell on GaAs nanowires
(Master thesis, 2015)Semiconducting direct-bandgap nanowires (NWs) are a promising material system for future optoelectronic devices. In this work, the effect of shell growth temperature has been examined on the structural and optical properties ...