Department of Physics and Technology
Recent Submissions
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A Modular Smart Ocean Observatory for Development of Sensors, Underwater Communication and Surveillance of Environmental Parameters
(Journal article; Peer reviewed, 2024)The rapid growth of marine industries has emphasized the focus on environmental impacts for all industries, as well as the influence of key environmental parameters on, for instance, offshore wind or aquaculture performance, ... -
Comparison of deep inspiration breath hold and free breathing intensity modulated proton therapy of locally advanced lung cancer
(Journal article; Peer reviewed, 2024)Background and purpose: For locally advanced non-small cell lung cancer (LA-NSCLC), intensity-modulated proton therapy (IMPT) can reduce organ at risk (OAR) doses compared to intensity-modulated radiotherapy (IMRT). Deep ... -
Numerical Integration and Angular Spectrum Modeling of Resonant and Non-Resonant Wave Interaction with a Solid Plate
(Journal article; Peer reviewed, 2024)The angular spectrum (AS) model is widely used to calculate the pressure transmitted through, and reflected from, a fluid-immersed solid plate, using a baffled piston as source. However, narrow peaks (infinite peaks for ... -
Prompt and non-prompt J/Psi production at midrapidity in Pb-Pb collisions at √s = 5.02 TeV with ALICE
(Doctoral thesis, 2024-11-22)ALICE-eksperimentet studerer tungionekollisjonar ved Large Hadron Collider (LHC) for å utvide forståinga vår av den sterke vekselverknaden ved ekstremt høge energiar. Meir spesifikt blir produksjon av charmonium brukt til ... -
Image Reconstruction for Proton Therapy Range Verification via U-NETs
(Journal article; Peer reviewed, 2024)This study aims to investigate the capability of U-Nets in improving image reconstruction accuracy for proton range verification within the framework of the NOVO (Next generation imaging for real-time dose verification ... -
Enhancing peer instruction in physics: Understanding cognitive processes and refining rules
(Journal article; Peer reviewed, 2024)Peer Instruction gives practice in the abstract language of physics, addresses common misconceptions among students, and is more effective than traditional lecturing. However, it is not clear what makes Peer Instruction ... -
Machine Learning-Based Retrieval of Total Ozone Column Amount and Cloud Optical Depth from Irradiance Measurements
(Journal article; Peer reviewed, 2024)A machine learning algorithm combined with measurements obtained by a NILU-UV irradiance meter enables the determination of total ozone column (TOC) amount and cloud optical depth (COD). In the New York City area, a NILU-UV ... -
Developing the Svalbard Integrated Arctic Earth Observing System (SIOS)
(Journal article; Peer reviewed, 2024)Based on the ongoing large climatic and environmental changes and the history of science coordination in Svalbard leading to the development of Svalbard Integrated Arctic Earth Observing System (SIOS), we present an overview ... -
Engineering Meter-scale Porous Media Flow Experiments for Quantitative Studies of Geological Carbon Sequestration
(Journal article; Peer reviewed, 2024)This technical note describes the FluidFlower concept, a new laboratory infrastructure for geological carbon storage research. The highly controlled and adjustable system produces a strikingly visual physical ground truth ... -
QCD challenges from pp to AA collisions: 4th edition
(Journal article; Peer reviewed, 2024)This paper is a write-up of the ideas that were presented, developed and discussed at the fourth International Workshop on QCD Challenges from pp to AA, which took place in February 2023 in Padua, Italy. The goal of the ... -
Ratiometric Fluorescent pH Sensing with Carbon Dots: Fluorescence Mapping across pH Levels for Potential Underwater Applications
(Journal article; Peer reviewed, 2024-09-02)Ocean acidification has become a major climate change concern requiring continuous observation. Additionally, in the industry, pH surveillance is of great importance. Consequently, there is a pressing demand to develop ... -
Investigation of Fluorescent pH Indicators and Antibiofouling Properties of a Nanostructured Glass for Use in Underwater Fluorescence Lifetime-based pH Sensors
(Doctoral thesis, 2024-11-08)Denne avhandlinga undersøkjer karbonprikkar for deira potensial som pH-indikatorar og deira tilhøyrande fluorescensrespons, samt dei antibiobegroing eigenskapane til eit gjennomsiktig nanostrukturert vindauge. Motivasjonen ... -
Transparent, Antibiofouling Window Obtained with Surface Nanostructuring
(Journal article; Peer reviewed, 2024)Biofouling is one of the key factors which limits the long-term performance of seawater sensors. Common measures to hinder biofouling include toxic paints, mechanical cleaning and UV radiation. All of these measures have ... -
The connection between lightning currents, TGF intensities and Elves
(Doctoral thesis, 2024-10-30)Tordenstormer genererer en rekke fascinerende fenomener i tillegg til de observerte lynglimtene. Blant disse er jordiske gamma-glimt (TGFer) og alver, som begge er assosiert med lynutladningsprosesser. TGFer er korte, ... -
High Peak Current Lightning and the Production of Elves
(Journal article; Peer reviewed, 2024)Elves are observed as expanding rings of light in the UV and visible optical bands. They are produced when electromagnetic pulses from lightning discharges interact with the lower parts of the ionosphere. Elves are well ... -
Evidence of a New Population of Weak Terrestrial Gamma‐Ray Flashes Observed From Aircraft Altitude
(Journal article; Peer reviewed, 2024)Terrestrial Gamma-ray Flashes (TGFs) are ten-to-hundreds of microsecond bursts of gamma-rays produced when electrons in strong electric fields in thunderclouds are accelerated to relativistic energies. Space instruments ... -
Perovskite Solar Cells: Materials, Fabrication, and Characterization
(Master thesis, 2024-06-03) -
Nanodiamond-treated Flax: Reducing Erosion on Wind Turbine Blades
(Doctoral thesis, 2024-10-03)Arbeidet som presenteres i denne oppgaven undersøker nye materialer for vindturbinblader som er mer erosjonsbestandige enn de vanlig brukte glassfiber-forsterkede komposittene (GFRCs). Med den pågående økningen i størrelsen ... -
Towards greener wind power: Nanodiamond-treated flax fiber composites outperform standard glass fiber composites in impact fatigue tests
(Journal article; Peer reviewed, 2024)Wind energy is facing two major problems, recyclability of wind turbine blades, primarily made from fiberglass, and rain erosion on the blade’s leading edges. Here, we show that flax fiber reinforced epoxy composites have ... -
Failsafe layer for wind turbine blades: Erosion protection of glass fiber composite through nanodiamond-treated flax composite top layer
(Journal article; Peer reviewed, 2024)Wind turbine blades are mainly made from E-glass fiber (GF) epoxy composites, because of their good ratio of strength to weight and costs. With the increase in blade length and tip speed, the problem of leading edge erosion ...