Fakultet for naturvitenskap (NV): Nye registreringer
Viser treff 21-40 av 12430
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Local statistics of immiscible and incompressible two-phase flow in porous media
(Peer reviewed; Journal article, 2023)We consider immiscible and incompressible two-phase flow in porous media under steady-state conditions using a dynamic pore network model. We focus on the fluctuations in a Representative Elementary Area (REA), with the ... -
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 ... -
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 ... -
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, ... -
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 ... -
Experimental and Numerical Results of a Non-DLE Aeroderivative GT Combustion System Burning Methane-Ammonia Blends at Intermediate Pressures
(Chapter, 2023)Ammonia is considered as a practical hydrogen carrier, as it can be stored in liquid form at moderate pressures and temperatures and is commonly produced and transported today. Ammonia could be used directly as a Gas Turbine ... -
Improved Synthetic Methodology, Substrate Scope and X-ray Crystal Structure for N, N’-disubstituted Guanidines
(Peer reviewed; Journal article, 2024)Guanidine is a privileged scaffold in drug discovery. Herein we report our investigations into the acid promoted amination of pyrimidine-bearing cyanamide to produce N, N’-disubstituted guanidines. Hydrochloric acid was ...