Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 9642-9661 of 9922
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Velocity spectra and coherence estimates in the marine atmospheric boundary layer
(Journal article; Peer reviewed, 2018)Two years of continuous sonic anemometer measurements conducted in 2007 and 2008 at the FINO1 platform are used to investigate the characteristics of the single- and two-point velocity spectra in relation to the atmospheric ... -
Vented gas and dust explosions - External explosions
(Master thesis, 2016-06-01)The use of explosion venting is a widely applied safety measure, mitigating the effects of an internal gas and dust explosion. Implementation of this safety measure does however not eliminate all risks and hazards associated ... -
Vented hydrogen deflagrations in weak enclosures: Experimental results and implications for industrial practice
(Peer reviewed; Journal article, 2019)It is common practice in industry to install equipment for hydrogen energy applications in containers and smaller enclosures. Fires and explosions represent a significant hazard for such installations (Skjold et al., 2018), ... -
Verifisering av ein tredimensjonal bølgemodell ved hjelp av eksperimentelle data
(Master thesis, 2001) -
Versatile compressive microscope for hyperspectral transmission and fluorescence lifetime imaging
(Journal article; Peer reviewed, 2022)Increasing demand for multimodal characterization and imaging of new materials entails the combination of various methods in a single microscopic setup. Hyperspectral imaging of transmission spectra or photoluminescence ... -
The vertebrate Aqp14 water channel is a neuropeptide-regulated polytransporter
(Peer reviewed; Journal article, 2019-12-11)Water channels (aquaporins) were originally discovered in mammals with fourteen subfamilies now identified (AQP0-13). Here we show that a functional Aqp14 subfamily phylogenetically related to AQP4-type channels exists in ... -
Vertebrate Vitellogenin Gene Duplication in Relation to the ‘‘3R Hypothesis’’: Correlation to the Pelagic Egg and the Oceanic Radiation of Teleosts
(Peer reviewed; Journal article, 2007)The spiny ray-finned teleost fishes (Acanthomorpha) are the most successful group of vertebrates in terms of species diversity. Their meteoric radiation and speciation in the oceans during the late Cretaceous and Eocene ... -
A Vertex Incremental Approach for Maintening Chordiality
(Journal article, 2006) -
Vertical Convergence of Turbulent and Double-Diffusive Heat Flux Drives Warming and Erosion of Antarctic Winter Water in Summer
(Journal article; Peer reviewed, 2023)The seasonal warming of Antarctic Winter Water (WW) is a key process that occurs along the path of deep water transformation to intermediate waters. These intermediate waters then enter the upper branch of the circumpolar ... -
Vertical diffusivity and oxygen concentrations in a fjord basin - A case study of the deep basin in Masfjorden
(Master thesis, 2021-06-01)The basin layer in a sill fjord is isolated from the coast, and may become hypoxic or anoxic if the renewal frequency is low. Deep water renewals and vertical mixing are the physical processes which affects the oxygen ... -
Vertical distribution and migration of mesopelagic scatterers in four north Atlantic basins
(Journal article; Peer reviewed, 2020)We studied vertical distribution and diel vertical migration (DVM) behaviour of mesopelagic acoustic scattering layers in relation to environmental conditions in the Norwegian Sea, the Iceland Sea, the Irminger Sea, and ... -
Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway
(Peer reviewed; Journal article, 1990)The distribution, biomass, and predator-prey relationships of the pelagic assemblage in Masfjorden, western Norway, was studied in January 1989. The pelagic biomass was dominated by particulate organic matter. Biomasses ... -
Vertical distribution of inorganic nanoparticles in a Norwegian fjord
(Journal article; Peer reviewed, 2023)Due to the analytical challenges of detecting and quantifying nanoparticles in seawater, the data on distributions of NPs in the marine environment is limited to qualitative studies or by ensemble measurements subject to ... -
Vertical Equilibrium Flow Models with Fully Coupled Geomechanics for CO2 Storage Modeling, Using Precomputed Mechanical Response Functions
(Peer reviewed; Journal article, 2017)Vertical equilibrium (VE) models have proved to be attractive for simulation of \co storage scenarios. Their primary advantage is a substantial reduction in computational requirements compared to standard 3D simulation ... -
Vertical equilibrium models for coupled flow and transport problems
(Master thesis, 2017-12-20)A better understanding of viscous fingering can help to increase the recovery of hydrocarbons. The need for modelling the impact of viscous fingering is great as it largely dictates the sweep quality of hydrocarbons in a ... -
Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean
(Peer reviewed; Journal article, 2016-07)This study compiles colocated oceanic observations of high-resolution vertical profiles of nitrate concentration and turbulent microstructure around the Svalbard shelf slope, covering both the permanently ice-free Fram ... -
Vertical mixing in the Arctic Ocean inferred from eXpendable Current Profilers
(Master thesis, 2011-05-31)Recent and historical data sets from different regions of the Arctic Ocean are analysed using velocity profiles from 127 eXpendable Current Profiler (XCP) deployments from the time period 1993 to 2010. The data sets are ... -
Vertical mixing in the marginal ice zone of the Barents Sea Spatial and temporal variation of oceanic turbulence - observations and numerical model experiments
(Doctoral thesis, 2007-01-12)Vertical mixing affects water mass modification, biological productivity, and chemical fluxes in the ocean, but its response to forcing and variability in time and space in seasonally ice-covered seas is inadequately known. ... -
Vertical salmon lice behaviour as a response to environmental conditions and its influence on regional dispersion in a fjord system
(Peer reviewed; Journal article, 2014)The salmon louse Lepeophtheirus salmonis is a major parasite of salmon, and is able to travel between farms during its pelagic phases. We investigated the spatial dispersion of L. salmonis planktonic stages in the ... -
Vertical structure and seasonal variability of the inflow to the Lofoten Basin inferred from high resolution Lagrangian simulations
(Peer reviewed; Journal article, 2019-11-13)The Lofoten Basin in the eastern Nordic Seas plays a central role in modifying the warm Atlantic Water inflow toward the Arctic Ocean. Here, the Atlantic Water experiences increased residence times, cooling, and substantial ...