Department of Physics and Technology
Recent Submissions
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Physical Variability in Meter-Scale Laboratory CO2 Injections in Faulted Geometries
(Journal article; Peer reviewed, 2024)Carbon, capture, and storage (CCS) is an important bridging technology to combat climate change in the transition toward net-zero. The FluidFlower concept has been developed to visualize and study CO2 flow and storage ... -
Pixelwise immersion factor calibration for underwater hyperspectral imaging instruments
(Journal article; Peer reviewed, 2024)In situ spectral reflectance initially captured at high spatial resolution with underwater hyperspectral imaging (UHI) is effective for classification and quantification in oceanic biogeochemical studies; however, the ... -
A Pore-Level Study of Dense-Phase CO2 Foam Stability in the Presence of Oil
(Journal article; Peer reviewed, 2024)The ability of foam to reduce CO2 mobility in CO2 sequestration and CO2 enhanced oil recovery processes relies on maintaining foam stability in the reservoir. Foams can destabilize in the presence of oil due to mechanisms ... -
Pore-level Dense Phase CO2 Foam Dynamics during CO2 EOR and CO2 Storage
(Doctoral thesis, 2024-09-26)Rask befolkningsvekst, økende velstand og økonomisk ekspansjon bidro til at behovet for energi økte med 1.3% i 2022. Det økende energibehovet kan sees på som en trussel ettersom energiproduksjon representerer tre fjerdedeler ... -
On the strength of E and F region irregularities for GNSS scintillation in the dayside polar ionosphere
(Journal article; Peer reviewed, 2024)We present results of the study conducted to quantify the relative contribution of different ionospheric regions to phase scintillation in Global Navigation Satellite Systems (GNSS) at the dayside high latitude ionosphere. ... -
How Do Substorms Influence Hemispheric Asymmetries in Equivalent Currents?
(Journal article; Peer reviewed, 2024)Ionospheric dynamics exhibits a distinct hemispheric asymmetry, influenced primarily by the Interplanetary Magnetic Field (IMF) By component, dipole tilt, or a combination of both. Previous studies have indicated a reduction ... -
Fuzzy-Vocabulary-Based Detection and Explanation of Anomalies
(Journal article; Peer reviewed, 2023)Fuzzy partitions associated with linguistic variables are particularly useful to provide users with a description of the data. However, designing a fuzzy vocabulary that makes it possible to linguistically describe the ... -
A smart ocean observation system for reliable real-time measurements
(Chapter, 2023)This paper presents a research and innovation centre for a smart ocean observation system. The main goal of the centre, SFI Smart Ocean, is to enable sustainable ocean management through real-time measurements from autonomous ... -
Exploring the Predictability of the High-Energy Tail of MEE Precipitation Based on Solar Wind Properties
(Journal article; Peer reviewed, 2023)Medium Energy Electron (MEE) precipitation (≳30 keV) ionizes the mesosphere and initiates chemical reactions, which ultimately can reduce mesospheric and stratospheric ozone. Currently, there are considerable differences ... -
Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC
(Journal article; Peer reviewed, 2023)Linelike features in TeV 𝛾 rays constitute a “smoking gun” for TeV-scale particle dark matter and new physics. Probing the Galactic Center region with ground-based Cherenkov telescopes enables the search for TeV spectral ... -
A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+200 from MAGIC and Fermi /LAT observations
(Journal article; Peer reviewed, 2023)Context. Extended and delayed emission around distant TeV sources induced by the effects of propagation of γ ray s through the intergalactic medium can be used for the measurement of the intergalactic magnetic field ... -
Global ULF Waves Excited by Solar Wind Dynamic Pressure Impulses: 2. The Spatial Distribution Asymmetry
(Journal article; Peer reviewed, 2023)Asymmetry is a prevalent characteristic in numerous space physics phenomena. In this study, we investigate the statistical properties and spatial variations of ultra-low frequency power globally after positive dynamic ... -
Design, construction and commissioning of a technological prototype of a highly granular SiPM-on-tile scintillator-steel hadronic calorimeter
(Journal article; Peer reviewed, 2023)The CALICE collaboration is developing highly granular electromagnetic and hadronic calorimeters for detectors at future energy frontier electron-positron colliders. After successful tests of a physics prototype, a ... -
Nanodiamond-treated flax: improving properties of natural fibers
(Journal article; Peer reviewed, 2023)Synthetic fibers are used extensively as reinforcement in composite materials, but many of them face environmental concerns such as high energy consumption during production and complicated decommissioning. Natural fibers ... -
Observation of Blue Corona Discharges and Cloud Microphysics in the Top of Thunderstorm Cells in Cyclone Fani
(Journal article; Peer reviewed, 2023)Blue corona discharges are often observed at the top of thunderclouds. They are bursts of streamers, but the cloud conditions that enable them are not well known. Here we present observations by the Atmosphere-Space ... -
Energetic Electron Precipitation During Slot Region Filling Events
(Journal article; Peer reviewed, 2023)The slot region marks the equatorward boundary of the energetic electron precipitation (EEP). There are, however, numerous reports where energetic electrons cross these boundaries and fill the slot region. The ensuing EEP ... -
Experimental investigation of the effect of modified dry water on the reactivity in hydrogen explosions.
(Master thesis, 2024-06-03) -
Polar ionospheric currents and high temporal resolution geomagnetic field models
(Journal article; Peer reviewed, 2023)Estimating high resolution models of the Earth’s core magnetic field and its time variation in the polar regions requires that one can adequately account for magnetic signals produced by polar ionospheric currents, which ... -
Design of experimental hydrofoil setup using RANS CFD
(Master thesis, 2024-06-03) -
Chemical inhibition of hydrogen explosions using dry water and propane
(Master thesis, 2024-06-03)This research project characterises an experimental investigation with the aim of finding the laminar burning velocity of hydrogen-air explosion, inhibit the reactive compound using dry water and hydrocarbon (propane) and, ...