Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 6514-6533 of 10014
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On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection
(Journal article; Peer reviewed, 2020)Using 2.5-D Particle-In-Cell (PIC) simulations, we investigate how magnetotail reconnection is affected by a cold, streaming, oxygen plasma population, attributed to an ionospheric source, in the inflow region. As the ... -
On the importance of temperature and precipitation changes for glacial ice sheet stability
(Master thesis, 2023-11-20)Ice sheets undergo periodic advances and retreats, resulting in glacial-interglacial cycles. The Last Glacial Period is widely believed as involving a long-time buildup phase followed by a rapid termination over approximately ... -
On the IND-CCA1 Security of FHE Schemes
(Journal article; Peer reviewed, 2022)Fully homomorphic encryption (FHE) is a powerful tool in cryptography that allows one to perform arbitrary computations on encrypted material without having to decrypt it first. There are numerous FHE schemes, all of which ... -
On the Influence of Latent and Sensible Heating for Maintaining Baroclinicity in the Gulf Stream Region
(Master thesis, 2016-06-01)For the North Atlantic storm track to collocate with the ocean front, there has to be efficient restoring mechanisms for baroclinicity. The total diabatic heating is agreed to play the most dominant role, but whether the ... -
On the Influence of Sea Surface Temperature distributions on the Development of Extratropical Cyclones
(Journal article; Peer reviewed, 2021)The sea surface temperature (SST) distribution can modulate the development of extratropical cyclones through sensible and latent heat fluxes. However, the direct and indirect effects of these surface fluxes, and thus the ... -
On the Influence of Sea Surface Temperatures on Cyclone Characteristics in the Gulf Stream and Kuroshio Region
(Doctoral thesis, 2021-01-29)The Gulf Stream and the Kuroshio are the western boundary currents in the North Atlantic and North Pacific, respectively and are associated with maxima in midlatitude precipitation and air-sea heat exchange in the midlatitudes. ... -
On the Influence of Small-Scale Topography on Dense Plumes, with a Special Focus on the Filchner Overflow Plume
(Doctoral thesis, 2007-10-05) -
On the influence of wave reflection on shoaling and breaking solitary Waves
(Peer reviewed; Journal article, 2016)A coupled BBM system of equations is studied in the situation of water waves propagating over a decreasing fluid depth. A conservation equation for mass and also a wave breaking criterion, both valid in the Boussinesq ... -
On the Linear MIM-width of Trees
(Master thesis, 2019-06-26)Linear MIM-width, and its generalization MIM-width, is a graph width parameter that has become noted for having bounded value on several important graph classes, e.g. interval graphs and permutation graphs. The linear ... -
On the link between cold fronts and hail in Switzerland
(Peer reviewed; Journal article, 2016-05)Hail is the costliest atmospheric hazard in Switzerland, causing substantial damage to agriculture, cars and buildings every year. In this study, a 12-year statistic of objectively identified cold fronts and a radar-based ... -
On the mass transport induced by time-dependent oscillations of finite amplitude in a nonhomogeneous fluid. I: General results for a perfect gas
(Department of Applied Mathematics report, Research report, 1973-05) -
On the mass transport induced by time-dependent oscillations of finite amplitude in a nonhomogeneous fluid. II: General results for a liquid
(Department of Applied Mathematics report, Research report, 1973-08) -
On the maximum number of edges in planar graphs of bounded degree and matching number
(Journal article; Peer reviewed, 2023)We determine the maximum number of edges that a planar graph can have as a function of its maximum degree and matching number. -
On the Modelling of Immiscible Viscous Fingering in Two Phase Flow in Porous Media
(Journal article; Peer reviewed, 2020)Viscous fingering in porous media is an instability which occurs when a low-viscosity injected fluid displaces a much more viscous resident fluid, under miscible or immiscible conditions. Immiscible viscous fingering is ... -
On the modulation of the periodicity of the Faroe Bank Channel overflow instabilities
(Peer reviewed; Journal article, 2015-10-26)The Faroe Bank Channel (FBC) is one of the ma- jor pathways where dense, cold water formed in the Nordic Seas flows southward as a bottom-attached energetic plume towards the North Atlantic. The plume region downstream of ... -
On the morphology of the domesticated dog in medieval Norway.
(Master thesis, 2015-12-12)There is a large amount of bones at the Osteological collection in the Natural History Museum in Bergen, from Norwegian urban settlements from the middle ages. A large amount of bones from excavations all over Norway have ... -
On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability
(Journal article, 2003-12)Analysis of data obtained by the Institute of Marine Research, Norway, at their regular surveys of the Fugløya-Bjørnøya section, between the northern tip of Norway and Bear Island, has allowed for an identification of the ... -
On the Nordic Seas’ role in the Atlantic Meridional Overturning Circulation
(Doctoral thesis, 2007-06-27)In the present climate, the North Atlantic thermohaline circulation (THC) plays a fundamental role in the global transport of heat at high latitudes. The response of the North Atlantic Ocean-Nordic Seas THC to surface ... -
On the numerical approximation of derivatives by a modified Fourier collocation method
(Department of Applied Mathematics report, Research report, 1995-07) -
On the Oceanic and Atmospheric Mechanisms Driving the Basal Melting of Fimbulisen Ice Shelf, East Antarctica
(Doctoral thesis, 2024-06-13)Den fremtidige massebalansen til innlandsisen i Øst-Antarktis er den største usikkerheten i prognoser om global havnivåstigning. Et betydelig bidrag til tapet av isen kommer fra oseanisk smelting av isbremmer, de flytende ...