Fakultet for naturvitenskap (NV)
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Ultrafast Laser Direct Writing as a key enabling technology for silicon processing: a new target for positronium Bose-Einstein condensation and performance improvements of the MALTA2 tracking sensor
(Master thesis, 2024)I det nåværende arbeidet viser vi to anvendelser av en laserbearbeidingsteknikk kalt Ultrafast Laser Direct Writing (ULDW). Endringer i bulk kan induseres i en krystallinsk halvleder for å kontrollere dens faste tilstand ... -
Steam Reforming of Tar Impurities from Biomass Gasification with Ni-Co/Mg(Al)O Catalysts—Operating Parameter Effects
(Peer reviewed; Journal article, 2024)The elimination of tar impurities from biomass gasification by catalytic steam reforming can provide clean syngas for downstream biofuel synthesis (Fischer–Tropsch). The effects of key operating parameters in CH4/tar steam ... -
Feasibility of Waste Materials from Metal Industry for Thermal Energy Storage Applications
(Chapter, 2024)Thermal energy storage (TES) is essential for sustainable energy solutions. This study investigates the potential of metal industry waste for TES applications. Experimental findings indicate that while the sludge is not ... -
Steady-State Shear Rheology of Aqueous Noncolloidal Carbonate Suspensions
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Computational reacting flow models for the pre-reduction of lumpy Nchwaning manganese ore with hydrogen
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Inception of vented water trees in high voltage XLPE cable insulation: Effect of inorganic contaminations inside the semiconductive material
(Peer reviewed; Journal article, 2024)Wet-design AC subsea power cables are currently rated up to a maximum voltage of 72.5 kV. These high voltage (HV) cables are cost-effective alternatives to subsea cables kept dry by a protective lead sheath and exhibit ... -
Estimating diffusion coefficients of Li+ in LCO using Molecular Dynamics Simulations
(Master thesis, 2024)Utviklingen av fornybar energi og utnyttelsen av fornybare energikilder er et viktig steg mot å løse dagens klimakrise. En av de største ulempene ved bruk av fornybar energi er tilgjengeligheten, da kilder som sol og vind ... -
Bandgap optimization for colored multi-bandgap solar cells
(Master thesis, 2024)Denne masteroppgaven ser på den teoretiske virkningsgraden for fargede solceller. Dette har blitt gjort tidligere for ideelle tilfeller, men i denne masteroppgaven vill mer realistiske beregninger bli gjort. Beregningene ... -
Alginate hydrogel beads containing anthocyanins as a freshness indicator for intelligent food packaging
(Doctoral theses at NTNU;2024:320, Doctoral thesis, 2024)Intelligent food packaging systems are designed to provide dynamic information about products to different stakeholders within the supply chain, including consumers, retailers, and distributors. One such example is the ... -
Single-stage synthesis of highly dispersed copper and iron oxides on mesoporous supports for NH3-SCR
(Doctoral theses at NTNU;2024:299, Doctoral thesis, 2024)Selective catalytic reduction (SCR) of nitrogen oxides (NOx) is a process where NOx is reduced to nitrogen (N2) by use of a reducing agent. One common reducing agent is ammonia (NH3-SCR). Increasingly stricter regulation ... -
Detachment and re-attachment of Salmon lice during full-scale delousing operations on Salmon farms
(Peer reviewed; Journal article, 2024)This study examined salmon lice (Lepeophtheirus salmonis) numbers during different full-scale lice treatments of salmon, with focus on detachment during crowding and re-attachment post-treatment. Data was collected from ... -
Spredning av PFAS fra brannøvingsfelt i Longyearbyen
(Master thesis, 2024)Svalbard er en del av Arktis, og kan av den grunn bli sett på som et uberørt område der forurensning i stor grad skjer i form av langtransport. I Longyearbyen har det i nyere tid blitt sett nærmere på lokale kilder til ... -
Synthesis of 2-Chloro-1-(6-fluorochroman-2-yl)-ethanol: A Precursor for Enantiopure β-Blocker (+)-Nebivolol
(Master thesis, 2024)β–blokkere er en klasse av legemidler so hovedsaklig brukes til å behandle problemer relatert til hjerte og sirkulasjonssystemet. De fleste β–blokkere er typisk solgt som racemiske blandinger, og inneholder like mengder ... -
Mercury and selected trace elements in Arctic permafrost
(Master thesis, 2024)Arktis er svært sårbart for klimaendringer. Et varmere klima har ført til at permafrosten smelter, og dersom denne utviklingen fortsetter, kan det få alvorlige konsekvenser for miljøet og levende organismer. Permafrost har ... -
Crystal Asymmetry in Magnets and Superconductors
(Doctoral theses at NTNU;2024:338, Doctoral thesis, 2024)English summary Magnetic materials have shown great technological potential in utilizing the electron spin as a key to read, write, and store information. This has given birth to the emerging field of spintronics or spin ... -
The time for ambitious action is now: Science-based recommendations for plastic chemicals to inform an effective global plastic treaty
(Peer reviewed; Journal article, 2024)The ubiquitous and global ecological footprint arising from the rapidly increasing rates of plastic production, use, and release into the environment is an important modern environmental issue. Of increasing concern are ... -
Estimating metastable thermodynamic properties by isochoric extrapolation from stable states
(Journal article; Peer reviewed, 2024)The description of metastable fluids, those in local but not global equilibrium, remains an important problem of thermodynamics, and it is crucial for many industrial applications and all first order phase transitions. One ... -
Skeptics - Experiences of Bildung from university-level physics students
(Journal article; Peer reviewed, 2024)This study explores transformative experiences in university physics education and their potential to contribute to Bildung through a case study based on interview data of six Norwegian master’s physics students. The results ... -
Sammenligning av ekstraksjonsmetoder for vitamin A og vitamin E i grønnkål og crispisalat
(Bachelor thesis, 2024)Oppgavens hovedmål var å etablere en god “in-house” metode for ekstraksjon av vitamin A (i form av β-karoten) og vitamin E (i form av α-tokoferol) i plantemateriale som grønnkål og crispisalat. Hensikten var at metoden ... -
Metodeutvikling for ekstraksjon av vitamin B1, B2, B3, B5, B6 og B9 i crispisalat og grønnkål
(Bachelor thesis, 2024)Hovedmålet med denne bacheloroppgaven var å utvikle en gunstig ekstraksjonsmetode for best mulig kvantifisering av vitamin B1, B2, B3, B5, B6 og B9 fra crispisalat (Lactuca sativa) og grønnkål (Brassica oleracea convar. ...