Blar i Faculty of Mathematics and Natural Sciences på tittel
Viser treff 2864-2883 av 10008
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Exhumation of the Caledonian Orogenic Infrastructure in West Norway : Concepts – Structures – Ages – Reactivation
(Doctoral thesis, 2020-05-19)Domes of high-grade metamorphic rocks are found in recent and ancient orogens alike. They commonly expose parts of the deep interior of mountain belts, the so-called orogenic infrastructure. This thesis explores the ... -
Existence and Uniqueness of Non-linear, Possibly Degenerate Parabolic PDEs, with Applications to Flow in Porous Media
(Master thesis, 2017-07-26)In the branch of mathematical analysis known as functional analysis, one mainly studies functions defined on vector spaces. For partial differential equations (PDEs), this analysis has proven to be a mighty resource of ... -
Existence and uniqueness of singular solutions for a conservation law arising in magnetohydrodynamics
(Peer reviewed; Journal article, 2018-10-30) -
Existence of a classical solution of a parabolic PIDE associated with ruin probability
(Journal article, 2012-06-18)In this article we will prove existence of a classical solution of the integro-differential equation for ruin probability in finite time stated in Paulsen (2008). -
Exitomelita sigynae gen. et sp. nov.: a new amphipod from the Arctic Loki Castle vent field with potential gill ectosymbionts
(Peer reviewed; Journal article, 2011-11-02)The newly discovered deep-sea hydrothermal vent field ‘‘Loki’s Castle’’ at 2,350 m depth at 70 N on the Knipovich Ridge north of the island Jan Mayen is the only known black smoker field from the Arctic Ridge system. This ... -
The exorhodopsin and melanopsin systems in the pineal complex and brain at early developmental stages of Atlantic halibut (Hippoglossus hippoglossus)
(Journal article; Peer reviewed, 2014)The complexity of the nonvisual photoreception systems in teleosts has just started to be appreciated, with colocalization of multiple photoreceptor types with unresolved functions. Here we describe an intricate expression ... -
An expanded calibration model for inferring lakewater and air temperatures from fossil chironomid assemblages in northern Fennoscandia
(Peer reviewed; Journal article, 1999)Chironomid-temperature inference models based on an expanded data set of surface-sediment and limnological data from 53 Subarctic lakes in northern Fennoscandia have been developed using eight different numerical techniques, ... -
Expansion of the barnacle Austrominius modestus (Darwin, 1854) (cirripedia, Thoracica, Balanidae) into Scandinavian waters based on collection data and niche distribution modeling
(Journal article; Peer reviewed, 2021)The barnacle Austrominius modestus, native of New Zealand and Australia was introduced to the South of England around 1943 and has since spread to most coastal waters in Western Europe, including the southern North Sea. ... -
Experiment design and bacterial abundance control extracellular H2O2 concentrations during four series of mesocosm experiments
(Journal article; Peer reviewed, 2020)The extracellular concentration of H2O2 in surface aquatic environments is controlled by a balance between photochemical production and the microbial synthesis of catalase and peroxidase enzymes to remove H2O2 from solution. ... -
Experimental and Numerical Analysis of the Effects of Clay Content on CH4 Hydrate Formation in Sand
(Journal article; Peer reviewed, 2021)Natural gas hydrates exist in large quantities in nature and represent a potential source of energy, mostly in the form of methane gas. Knowledge about hydrate formation in clayey sand is of importance for understanding ... -
Experimental and numerical investigation of direct absorption solar collectors (DASCs) based on carbon black nanofluids
(Journal article; Peer reviewed, 2023)Direct absorption solar collectors (DASCs) typically achieve high efficiency due to the volumetric heat absorption process facilitated by the working fluids. In this study, carbon black (CB) nanofluids were utilized as the ... -
Experimental and Numerical Investigation of the Erosive Effects of Micro- and Nanometer-Sized Particles in Water Flow
(Master thesis, 2020-08-20) -
Experimental and Numerical Modeling Investigation of CO2 Foam Mobility Control
(Master thesis, 2021-06-15) -
Experimental and theoretical investigation of waveguided plasmonic surface lattice resonances
(Journal article; Peer reviewed, 2022)Plasmonic nanostructures are good candidates for refractive index sensing applications through the surface plasmon resonance due to their strong dependence on the surrounding dielectric media. However, typically low ... -
Experimental and theoretical study of the flow, aggregation and deposition of gas hydrate particles
(Doctoral thesis, 2010-06-21)Gas hydrate plugging is considered to be a very problematic topic during petroleum production and transportation. The phenomenon of hydrate plug formation involves inter-related effects related to different disciplines, ... -
Experimental and theoretical study on the effect of wall roughness on the phenomenon end of the vortex in swirl tubes
(Master thesis, 2011-11-18)In this thesis, a combination of experimental measurements and numerical simulations are used to investigate the phenomenon "End of the Vortex" in swirl tubes. The main focus here has been comparing swirl tubes containing ... -
Experimental challenge of Atlantic salmon Salmo salar using clones of Paramoeba perurans, P. pemaquidensis and Tetramitus sp.
(Journal article; Peer reviewed, 2021)Salmon gill disease in Norway is in most cases associated with a range of different pathogens, stress and environmental factors. Paramoeba perurans and other amoebae have been isolated during such disease outbreaks. Other ... -
Experimental Characterization of High-Pressure Natural Gas Scrubbers
(Doctoral thesis, 2006-10-20)Scrubber design practice today is largely based on experimental data generated at ambient conditions with model fluid system such as air-water. Though good efficiency is often measured in the lab, real natural gas scrubbers ... -
Experimental characterization of the marine atmospheric boundary layer in the Havsul area, Norway
(Peer reviewed; Journal article, 2013)Offshore wind energy applications depend strongly on an improved knowledge of the physical processes taking place in marine atmospheric boundary layer (MABL). In particular the better understanding of the complex interactions ... -
Experimental construction of optimal cryptographic functions by expansion
(Master thesis, 2021-09-13)