Blar i Fakultet for naturvitenskap (NV) på tittel
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Organochlorine pollutants in grey seal (Halichoerus grypus) pups and their impact on plasma thyroid hormone and vitamin A concentrations
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:101, Doctoral thesis, 2005)Studies on laboratory animals suggest that developing and newborn mammals are more vulnerable than the adults with respect to the harmful effects of organochlorine (OC) pollutants such polychlorinated biphenyls (PCBs) and ... -
Organohalogenated contaminants (OHCs) in polar bear mother-cub pairs from Svalbard, Norway: Maternal transfer, exposure assessment and thyroid hormone disruptive effects in polar bear cubs
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:259, Doctoral thesis, 2012)As the top predator of the arctic marine food chain, polar bears (Ursus maritimus) accumulate high levels of organohalogenated compounds (OHCs) such as polychlorinated biphenyls (PCBs), brominated flame retardants (BFRs), ... -
Organohalogenated Contaminants in Eggs of Snow Buntings (Plectrophenax nivalis) from Human Settlements in Svalbard
(Master thesis, 2012)Contaminants in the Arctic environment are mainly transported from lower latitude areas by atmospheric transport. However, the Russian settlements (Barentsburg and Pyramiden) in Svalbard have shown to be heavily influenced ... -
Organophosphate esters in indoor dust from 12 countries: Concentrations, composition profiles, and human exposure
(Journal article; Peer reviewed, 2019)A total of 20 organophosphate triesters (OPEs), including seven alkyl-OPEs, three chlorinated (Cl)-OPEs, seven aryl-OPEs, and three oligomeric-OPEs were measured in 341 house dust samples collected from 12 countries during ... -
Organophosphate esters in sewage sludge from Norway
(Master thesis, 2021)Abstract will be available on 2024-07-01 -
Organosolv pretreatment of biomass for biofuel and biorefinery applications
(Master thesis, 2012)The overall objective of this Master thesis was to establish an optimized ethanol organosolv pretreatment of Norway spruce (Picea abies) for bioethanol production (63 wt% EtOH, pH~3.5 in aqueous phase, 170-240 °C, 90 min) ... -
Organosolv pretreatment of Norway spruce: Ethanol pretreatment for Biorefinery applications
(Doctoral theses at NTNU;2022:385, Doctoral thesis, 2022)The acceleration of climate change and the depletion of oil reserves forced the society to look for alternative fuel sources. Among the available alternatives, second generation biofuel is gaining attention due to several ... -
Oriental reed warbler (Acrocephalus orientalis) nest defence behaviour towards brood parasites and nest predators
(Journal article; Peer reviewed, 2015)Brood parasites and predators pose different threats to passerines that may favour the evolution of enemy-specific defence strategies. Furthermore, potential sex-specific variation in parental investment may be manifested ... -
Orientation and Projection Center Refinement for EBSD Indexing in Python
(Master thesis, 2021)I dette arbeidet er et sett med algoritmer for forbedring av krystallorientering og projeksjonssenter estimater spesielt etter, men ikke begrenset til, dictionary indexing av EBSD mønster presentert. Algoritmene er utviklet ... -
Orientation dependent pinning of (sub)grains by dispersoids during recovery and recrystallization in an Al–Mn alloy
(Peer reviewed; Journal article, 2023)The recrystallized grain size and texture in alloys can be controlled via the microchemistry state during thermomechanical processing. The influence of concurrent precipitation on recovery and recrystallization is here ... -
Orientation effects on energy dispersive spectroscopy in TEM
(Master thesis, 2020)Energispredningsspektroskopi (EDX) er den mest brukte metoden for ̊a bestemme et ma-terials komposisjon p ̊a nanometer-skala ved transmisjonselektronmikroskoper(TEM). Re-sultatene p ̊avirkes av hvordan den innkommende ... -
Orientation independent and dependent subgrain growth during iso-thermal annealing of high- purity and commercial purity aluminium
(Journal article; Peer reviewed, 2019)The orientation dependence on recovery has been studied in cold-rolled and annealed polycrystalline high-purity aluminium (99.99 wt%), binary Al-0.25Mn and commercial purity aluminium. The growth mechanisms were found to ... -
Orientation relationship between b-Si3N4 and Si in multicrystalline silicon ingots for PV applications
(Journal article; Peer reviewed, 2018)β-Si3N4 particles are thought to be nucleation sites for silicon in multicrystalline silicon (mc-Si) ingots for PV applications. The orientation relationship (OR) between Si and β-Si3N4 has been investigated by transmission ... -
Orientation relationships of phase transformation in α-Al12Mn3Si pseudomorphs after plate-like Al6Mn precipitate in an AA3004 Al-Mn based alloy
(Journal article; Peer reviewed, 2017)The phase transformation in the plate-like precipitates of Al6Mn in an AA3004 Al-Mn based alloy, which was prepared by a chemical extraction technique, was investigated using transmission electron microscopy. The boiling-phenol ... -
Orientational mapping of minerals in Pierre shale using X-ray diffraction tensor tomography
(Peer reviewed; Journal article, 2021)Shales have a complex mineralogy with structural features spanning several length scales, making them notoriously difficult to fully understand. Conventional attenuation-based X-ray computed tomography (CT) measures density ... -
Origin and spatial distribution of metals in moss samples in Albania: A hotspot of heavy metal contamination in Europe
(Journal article; Peer reviewed, 2018)This study presents the spatial distribution of 37 elements in 48 moss samples collected over the whole territory of Albania and provides information on sources and factors controlling the concentrations of elements in the ... -
Origin of Chemisorption Energy Scaling Relations over Perovskite Surfaces
(Journal article; Peer reviewed, 2019)Rationally tailored perovskites ABO3 are promising substitutes for expensive noble-metal catalysts in heterogeneous catalysis. In this contribution, the BEEF-vdW + U method has been used to examine the adsorption of H, C, ... -
Origin of ferroelectric polarization in tetragonal tungsten-bronze-type oxides
(Journal article; Peer reviewed, 2016)The origin of ferroelectric polarization in tetragonal tungsten-bronze- (TTB-) type oxide strontium barium niobate (SBN) is investigated using first-principles density functional calculations. We study in particular the ... -
Origin of Leakage Currents and Nanowire-to-Nanowire Inhomogeneity in Radial p-i-n Junction GaAs Nanowire Array Solar Cells on Si
(Journal article; Peer reviewed, 2023)To realize the promising potential of radial junction nanowire (NW) array-based solar cells, it is crucial to get physical insight into how the overall photoconversion efficiency (PCE) is impacted by the hole mask properties, ... -
Origin of potassium promotion effects on CuCl2/gamma-Al2O3 catalyzed ethylene oxychlorination
(Peer reviewed; Journal article, 2020)Potassium promoters are widely used in industrial catalysts of ethylene oxychlorination to achieve optimum performance. However, the origin of the promoter effect is not fully understood. Herein, we investigated the potassium ...