Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 2434-2453 of 12479
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Deciphering the composition and transformation of dissolved organic matter in recirculating aquaculture systems by high-resolution mass spectrometry
(Doctoral theses at NTNU;2022:237, Doctoral thesis, 2022)The continuous increase in the human population is prompting the need for aquaculture systems able to sustain the global demand for fish without affecting the environment. Recirculating aquaculture systems (RAS) are a new ... -
Deciphering the Composition of Fulvic Acids from Recirculating Aquaculture Systems by Quadrupole Time-of-Flight Mass Spectrometry
(Peer reviewed; Journal article, 2022)The constant reuse of waters in recirculating aquaculture systems (RAS) together with the continuous addition of organic matter from fish degradation components, faeces and non-consumed feed promote the accumulation of ... -
Deciphering the Electronic Transitions of Thiophene-Based Donor-Acceptor-Donor Pentameric Ligands Utilized for Multimodal Fluorescence Microscopy of Protein Aggregates.
(Journal article; Peer reviewed, 2020)Anionic pentameric thiophene acetates can be used for fluorescence detection and diagnosis of protein amyloid aggregates. Replacing the central thiophene unit by benzothiadiazole (BTD) or quinoxaline (QX) leads to large ... -
Decline of a grey seal (Halichoerus grypus) population in Norway: can per- and polyfluoroalkyl substances be blamed ?
(Master thesis, 2023)Bestanden av gråsel (Halichoerus grypus) i Froan Archipelago har gått drastisk ned siden 2001, og det blir en presserende utfordring å forstå de underliggende årsakene til denne nedgangen. Spesiell oppmerksomhet har blitt ... -
Decoding atomic-level structures of the interface between Pt sub-nanocrystals and nanostructured carbon
(Journal article; Peer reviewed, 2018)Gaining an insight into the interface structure resulting from the interaction between metal nanoparticles and their supports, particularly under relevant reaction conditions, has been an important topic in heterogeneous ... -
Decoding of Algebraic Geometry Codes
(Master thesis, 2011)Codes derived from algebraic curves are called algebraic geometry (AG) codes. They provide a way to correct errors which occur during transmission of information. This paper will concentrate on the decoding of algebraic ... -
Decomposing demographic contributions to the effective population size with moose as a case study
(Peer reviewed; Journal article, 2020)Levels of random genetic drift are influenced by demographic factors, such as mating system, sex ratio and age structure. The effective population size (N e) is a useful measure for quantifying genetic drift. Evaluating ... -
Decomposing demographic contributions to the effective population size with moose as a case study
(Journal article; Peer reviewed, 2020)Levels of random genetic drift are influenced by demographic factors, such as mating system, sex ratio and age structure. The effective population size (Ne) is a useful measure for quantifying genetic drift. Evaluating ... -
The decomposition and emission factors of a wide range of PFAS in diverse, contaminated organic waste fractions undergoing dry pyrolysis
(Peer reviewed; Journal article, 2023)Current treatment options for organic waste contaminated with per- and polyfluoroalkyl substances (PFAS) are generally limited to incineration, composting or landfilling, all resulting in emissions. Dry pyrolysis is a ... -
Decomposition of nitrosamines in aqueous monoethanolamine (MEA) and diethanolamine (DEA) solutions with UV-radiation
(Journal article; Peer reviewed, 2014)CO2 capture based on chemical absorption using amine solutions is considered to be the most feasible way to remove CO2 from low pressure sources. However, amines, when exposed to nitrous oxides, may form nitrosamines which ... -
Decoupling the effect of membrane thickness and CNC concentration in PVA based nanocomposite membranes for CO2/CH4 separation
(Journal article; Peer reviewed, 2018)The effect of the viscosity of the casting suspension on membrane morphology and thickness has been investigated for polyvinyl alcohol (PVA)/crystalline nanocellulose (CNC) nanocomposite membranes used for CO2/CH4 separation. ... -
Decrepitation of Comilog, Assmang and UMK manganese ores during prereduction
(Master thesis, 2020)Produksjon av manganlegeringer er en industri som forbruker mye elektrisk energi og karbonmaterialer. Prereduksjon av manganmalm er ønsket for å senke forbruket av elektrisk energi og karbonmaterialer. For at dette skal ... -
Decrystallization of Lignocellulosic Biomass using Ionic Liquids
(Master thesis, 2012)This thesis is written in fulfilment of the requirements for a Master in Science at the Norwegian University of Science and Technology (NTNU), Department of Chemical Engineering. The work investigates the effectiveness of ... -
Deep hydration of an Li7-3xLa3Zr2MIIIxO12solid-state electrolyte material: A case study on Al- and Ga-stabilized LLZO
(Peer reviewed; Journal article, 2022)Single crystals of an Li-stuffed, Al- and Ga-stabilized garnet-type solid-state electrolyte material, Li7La3Zr2O12 (LLZO), have been analysed using single-crystal X-ray diffraction to determine the pristine structural state ... -
Deep Learning For Automatic Segmentation Of Rectal Cancer On Magnetic Resonance Images From Two Independent Cohorts
(Master thesis, 2021)Heniskt: Inntegning av kreftsvulstvolumet er en viktig del av både kvantitativ bildeanalyse og strålebehandling. Dette er en tidkrevende oppgave som er forbundet med usikkerhet grunnet interobservatørvariabilitet. Det ville ... -
Deep learning image segmentation and automatic treatment planning in breast cancer radiotherapy
(Master thesis, 2021)Bakgrunn og formål: Behandlingsplanlegging og tilhørende segmentering av risikoorgan og målvolum for stråleterapi blir i dag mer eller mindre gjort manuelt. Prosessene er derfor tidkrevende og utsatt for variasjon mellom ... -
Deep neural network enabled corrective source term approach to hybrid analysis and modeling
(Peer reviewed; Journal article, 2022)In this work, we introduce, justify and demonstrate the Corrective Source Term Approach (CoSTA)—a novel approach to Hybrid Analysis and Modeling (HAM). The objective of HAM is to combine physics-based modeling (PBM) and ... -
Deep Reinforcement Learning in Real-Time Optimization
(Master thesis, 2022)Forsterkningslæring er et område innen maskinlæring som tiltrekker seg oppmerksomhet grunnet egenskaper til å løse komplekse problemer. Læring gjennom å prøve-og-feile er den grunnleggende idéen, der problemet formuleres ... -
Defect chemistry and ferroelectric domain walls in hexagonal manganites
(Doctoral theses at NTNU;2018:263, Doctoral thesis, 2018)The hexagonal manganites h-RMnO3 (R=Y, In, Sc, Ho-Lu) have been studied the last two decades for their exotic and diverse functional properties. Their large chemical flexibility makes this material class an ideal chemical ... -
Defect Chemistry as a Crystal Structure Design Parameter: Intrinsic Point Defects and Ga Substitution in InMnO3
(Journal article, 2017)The effect of defect chemistry on the polar and nonpolar phases of hexagonal InMnO3 is investigated using first-principles density functional calculations. Our motivation is to show how point defects and substitutional ...