Fakultet for naturvitenskap (NV): Recent submissions
Now showing items 21-40 of 12428
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Radiative forcing geoengineering causes higher risk of wildfires and permafrost thawing over the Arctic regions
(Journal article; Peer reviewed, 2024)Radiative forcing geoengineering is discussed as an intermediate solution to partially offset greenhouse gas-driven warming by altering the Earth’s energy budget. Here we use an Earth System Model to analyse the response ... -
Use of H2 in Mn-Ferroalloy Production
(Chapter, 2023)The use of H2 as a reductant in the iron and steel industry is an obvious choice towards carbon neutrality. For pyrometallurgical processes like Mn and Si, H2 cannot be the only solution, as the stability of the oxides of ... -
Metabolic engineering of Bacillus methanolicus MGA3 for the production of enantiopure 2,3-butanediol
(Master thesis, 2023)Metanol som råstoff for mikrobiell produksjon av verdiøkende kjemikalier har flere fordeler i forhold til kostnad og bærekraft. I denne masteroppgaven var målet å lage rekombinante Bacillus methanolicus MGA3 stammer for ... -
The effect of cation size on structure and properties of Ba-based tetragonal tungsten bronzes Ba4M2Nb10O30 (M = Na, K or Rb) and Ba4M2Nb8Ti2O30 (M = Ca or Sr)†
(Peer reviewed; Journal article, 2024)The second largest family of oxide ferroelectrics, after perovskites, are the tetragonal tungsten bronzes (TTB) with the general formula A24A12C4B12B28O30. Cation disorder in TTBs is known to occur if the size difference ... -
Presumptive Enterobacterales in a salmon processing facility: Identification, Antibiotic resistance, Susceptibility to disinfectants and Biofilm forming properties.
(Master thesis, 2024)Antibiotic microbial resistance (AMR) is a major global issue associated with high morbidity and mortality. The widespread use of antibiotics in food and agriculture directly or indirectly contributes to the emergence of ... -
Alterations in paraffin wax crystal networks induced by asphaltenes and pour point depressants, investigated by atomic force microscopy
(Peer reviewed; Journal article, 2024)Wax crystallization in pipelines in cold environments is a key factor affecting flow assurance during crude oil production. Polar crude oil components, such as asphaltenes, and polymeric pour point depressants (PPDs) have ... -
Disentangling electron-boson interactions on the surface of a familiar ferromagnet
(Peer reviewed; Journal article, 2024)We report energy renormalizations from electron-phonon and electron-magnon interactions in spin minority surface resonances on Ni(111). The different interactions are identified, disentangled, and quantified from the ... -
Simple and Robust Formulations of the Unscented Kalman Filter and Model Predictive Control
(Doctoral theses at NTNU;2024:93, Doctoral thesis, 2024)This thesis focuses mainly on state estimation by the Unscented Kalman filter (UKF), and partly on robust nonlinear model predictive control (RNMPC). Our aim is to refine or develop algorithms which are simple to implement, ... -
The effects of freezing and thawing on Alaria esculenta
(Journal article; Peer reviewed, 2024)Seaweeds must be stabilised shortly after harvesting to avoid rapid deterioration. To handle large amounts harvested during a short period, freezing and frozen storage until utilisation or further processing is one of the ... -
Metabolic engineering of industrially relevant strains for the production of riboflavin from sustainable feedstocks
(Doctoral theses at NTNU;2024:95, Doctoral thesis, 2024)There is an increasing demand for agricultural land and other resources necessary to feed an expanding world population. This has led to a growing interest in using sustainable feedstocks to produce value-added compounds ... -
Oxidative degradation of triethylene glycol
(Journal article; Peer reviewed, 2024)Triethylene glycol (TEG) is unstable in the presence of oxygen and at high temperatures, though the degradation mechanisms occurring are not properly understood. In attempting to close some of the knowledge gaps, ... -
Life history traits and demography of a mountain bird under climatic variation
(Doctoral theses at NTNU;2024:90, Doctoral thesis, 2024)Ongoing climate change can be expected to have major consequences for many species and ecosystems. Effects have been reported on reproduction, survival and movement ecology, with potential impacts for population dynamics ... -
High-Temperature Reactive Wetting of Natural Quartz by Liquid Magnesium
(Journal article; Peer reviewed, 2024)High-temperature wetting of natural, high-purity quartz (SiO2) and liquid magnesium (Mg) was investigated at temperatures between 973 and 1273 K. Sessile drop experiments using the capillary purification (CP) procedure ... -
The effect of salmon protein hydrolysate on palatability for Atlantic salmon smolts
(Master thesis, 2024)Krav om bedre fiskevelferd og mer bærekraftig akvakultur gjør det nødvendig å finne nye og bedre fôrressurser. Når man vurderer nye ingredienser til fôr, kan valg av strategi ha stor innvirkning på tolkningen av kvaliteten ... -
Krabbespredning i nord - Toktrapport 2023200030
(Toktrapport;, Research report, 2024)Taskekrabbe (Cancer pagurus) har spredd seg nordover i Troms, men utbredelse og bestandstetthet i Nord-Norge har så langt ikke blitt kartlagt. Det er ukjent om taskekrabbens utbredelsesområder overlapper med kongekrabbens ... -
FP-MAP: an extensive library of fingerprint-based molecular activity prediction tools
(Peer reviewed; Journal article, 2023)Discovering new drugs for disease treatment is challenging, requiring a multidisciplinary effort as well as time, and resources. With a view to improving hit discovery and lead compound identification, machine learning ... -
Shaping the Structure and Properties of TiO2-ZnO Oxide Coatings Produced by Plasma Electrolytic Oxidation on Titanium Substrate
(Peer reviewed; Journal article, 2023)The paper presents the results of preliminary research on the possibility of synthesizing ZnO-TiO2 mixed coatings by plasma electrochemical oxidation (PEO). The aim of the work was to synthesize TiO2-ZnO mixed coatings on ... -
Design of multi-luminescent silica-based nanoparticles for the detection of liquid organic compounds
(Journal article; Peer reviewed, 2024)Tracer testing in reservoir formations is utilised to determine residual oil saturation as part of optimum hydrocarbon production. Here, we present a novel detection method of liquid organic compounds by monodisperse SiO2 ... -
Thermodynamically consistent modeling of gas flow and adsorption in porous media
(Journal article; Peer reviewed, 2024)In modeling of gas flow through porous media width adsorption, the thermodynamic properties of the adsorbed phase are usually approximated by those of the bulk liquid. Using non-isothermal, gaseous transport of moist air ... -
Expanding the coverage of regulons from high-confidence prior knowledge for accurate estimation of transcription factor activities
(Peer reviewed; Journal article, 2023)Gene regulation plays a critical role in the cellular processes that underlie human health and disease. The regulatory relationship between transcription factors (TFs), key regulators of gene expression, and their target ...