Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 3103-3122 of 12453
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EBSD undersøkelser og in situ strekktesting av stål i SEM
(Master thesis, 2012)Denne masteroppgaven har tatt for seg undersøkelser av stål designet for lavtemperaurappliksjoner ved bruk av elektronmikroskop i kombinasjon med diffraksjon av tilbakespredte elektroner (Electron Backscatter Diffraction ... -
EBSD-karakterisering av et HSLA-stål under in situ varmebehandling
(Master thesis, 2011)Ved sveising av HSLA-stål (High Strength Low Alloy) designet for lavtemperatur applikasjoner kan det dannes lokale sprø soner som martensitt/austenitt-faser (MA-faser). Det er derfor ønskelig å karakterisere austenitten ... -
EBSP Indexer - An open-source alternative to commercial EBSD software
(Master thesis, 2023)Elektron tilbakesprednings diffraksjon (EBSD) er blitt en godt etablert metode for å undersøke krystallstrukturer og -orienteringer i krystallografiske materialer, og som resultat har interessen for å presse begrensingene ... -
EBSP Indexer - Using and open-source dictionary indexing software for phase differentiation
(Master thesis, 2023)Denne oppgaven presenterer utviklingen av en gratis programvare for analyse av tilbakespredte elektron diffraksjonsmønster (EBSD) kalt EBSP Indexer. Prosjektet er resultatet av et felles utviklingsarbeid av et team på tre ... -
ECF AND TCF BLEACHING OF SACCHARUM OFFICINERUM-CO89003 BAGASSE SODA-AQ PULP WITH ALKALI-THERMOTOLERANT CRUDE XYLANASE FROM COPRINELLUS DISSEMINATUS SW-1 NTCC1165
(Journal article; Peer reviewed, 2012)An alkali-thermo-tolerant crude xylanase from Coprinellus disseminatus SW-1 NTCC1165 produced under solid-state fermentation conditions improves the brightness of sugarcane bagasse soda-AQ pulp by 7.3, 4.7, 6.1, and 8.2% ... -
ECG augmented pulse oximetry in Atlantic salmon (Salmo salar)—A pilot study
(Peer reviewed; Journal article, 2023)Understanding the tolerance limits of fish is crucial for developing aquaculture operations that ensure good animal welfare. However, there exist little data describing the physiological responses in farmed Atlantic salmon, ... -
Eco-evolutionary feedbacks - theoretical models and perspectives
(Journal article; Peer reviewed, 2018)Theoretical models pertaining to feedbacks between ecological and evolutionary processes are prevalent in multiple biological fields. An integrative overview is currently lacking, due to little crosstalk between the fields ... -
Eco-physiological responses of cold-water corals to anthropogenic sedimentation and particle shape
(Master thesis, 2016)Cold-water coral habitats have been known to science for centuries, but only recently have scientists stated to study them. Among these habitats, also soft corals are found, and they have been even less investigated than ... -
The ecological and evolutionary role of telomere length in house sparrows
(Doctoral theses at NTNU;2021:420, Doctoral thesis, 2021)Telomeres, the DNA sequences capping the ends of linear chromosomes, are ancient molecular structures that are shared among most eucaryotes. The telomeres protect chromosomes from degradation and are vital to genome ... -
Ecological dependencies make remote reef fish communities most vulnerable to coral loss
(Peer reviewed; Journal article, 2021)Ecosystems face both local hazards, such as over-exploitation, and global hazards, such as climate change. Since the impact of local hazards attenuates with distance from humans, local extinction risk should decrease with ... -
Ecological dynamics and large scale phenotypic differentiation in density-dependent populations
(Journal article; Peer reviewed, 2019)Spatial differentiation of phenotypes is assumed to be determined by a combination of fluctuating selection producing adaptations to the local environment and a homogenizing effect of migration. We present a model with ... -
Ecological Effects of Climate-Driven Salinity Variation in the San Francisco Estuary: Can We Anticipate and Manage the Coming Changes?
(Peer reviewed; Journal article, 2021)Climate change-driven sea level rise and altered precipitation regimes are predicted to alter patterns of salt intrusion within the San Francisco Estuary. A central question is: Can we use existing knowledge and future ... -
Ecological modeling of metabolic rates predicts diverging optima across food abundances
(Journal article; Peer reviewed, 2014)Genetically based variation in metabolic rates of resting animals (RMR) suggests a potential role for evolutionary adaptations, but mechanistic models yielding evolutionary predictions are lacking. Here I utilize the ... -
Ecological signals of arctic plant-microbe associations are consistent across eDNA and vegetation surveys
(Peer reviewed; Journal article, 2023)Understanding how different taxa respond to abiotic characteristics of the environment is of key interest for understanding the assembly of communities. Yet, whether eDNA data will suffice to accurately capture environmental ... -
Ecology and Conservation Challenges of the Kori bustard in the Serengeti National Park
(Doctoral theses at NTNU;2017:238, Doctoral thesis, 2017)The study focused on the ecology and conservation challenges of the Kori bustard in the Serengeti National Park. The main objectives of the study was to determine the factors that affect local ecological knowledge and ... -
Ecology, Behaviour and Conservation Status of Masai Giraffe (Giraffa camelopardalis tippelskirchi) in Tanzania
(Doctoral theses at NTNU;2016:285, Doctoral thesis, 2016)Globally, biodiversity resources have been in decline since mankind began to keep records of their surrounding environments. With the combination of different natural catastrophes over centuries and human-induced activities, ... -
Economic model predictive control in a large-scale green hydrogen plant
(Master thesis, 2023)De siste årene har det vært en betydelig økning i utnyttelsen av grønn hydrogen som en alternativ energiløsning, grunnet dets høye fleksibilitet og minimale miljøpåvirkning. Ifølge Hydrogen Council har det blitt publisert ... -
Economic Plantwide Control for a Methanol Plant using Commercial Process Simulation Software
(Master thesis, 2014)It is desired to make the Economic Plantwide Control design procedure proposed by Skogestad (2000, 2004, 2012) available for engineers without deep knowledge of process control or optimization. The integration of the use ... -
Economical Synthesis of 13C-Labeled Opiates, Cocaine Derivatives and Selected Urinary Metabolites by Derivatization of the Natural Products
(Journal article; Peer reviewed, 2015)The illegal use of opiates and cocaine is a challenge world-wide, but some derivatives are also valuable pharmaceuticals. Reference samples of the active ingredients and their metabolites are needed both for controlling ...