Browsing Department of Mathematics by Title
Now showing items 21-40 of 982
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Alterations in auditory brain stem response distinguish occasional and constant tinnitus
(Journal article; Peer reviewed, 2022)BACKGROUND. The heterogeneity of tinnitus is thought to underlie the lack of objective diagnostic measures. METHODS. Longitudinal data from 20,349 participants of the Swedish Longitudinal Occupational Survey of Health ... -
Altered collective mitochondrial dynamics in the Arabidopsis msh1 mutant compromising organelle DNA maintenance
(Journal article; Peer reviewed, 2022)Mitochondria form highly dynamic populations in the cells of plants (and almost all eukaryotes). The characteristics and benefits of this collective behaviour, and how it is influenced by nuclear features, remain to be ... -
Alternative læringsmåter for derivasjon i R1 - en komparativ analyse
(Master thesis, 2016-06-01)I denne masteroppgaven har jeg studert elever som har arbeidet med derivasjon i matematikk R1. Formålet har vært å sammenligne to alternative læringsmåter med tradisjonell oppgaveregning, med tanke på læringsutbytte på ... -
Analyse av undervisningsopplegg med undersøkende matematikk
(Master thesis, 2017-07-26)I denne masteroppgaven ser jeg på hvilken effekt undersøkende matematikk kan ha på elevers holdninger til faget med hovedvekt på motivasjon. Prosjektene har blitt gjennomført med ungdomsskoleelever ved Stiftelsen ... -
Analysis and Approximation of Coupled 1D-3D Flow Models
(Doctoral thesis, 2020-03-18)In this thesis, we consider a specific instance of mixed-dimensional partial differential equations (PDEs) commonly referred to as the coupled 1D-3D flow model. The model itself consists of the Poisson equation defined on ... -
Analysis and Numerics of strongly degenerate Convection-diffusion Problems Modelling sedimentation-consolidation Processes
(Department of Applied Mathematics report, Research report, 1999-09) -
Analysis of Control Volume Heterogeneous Multiscale Methods for Single Phase Flow in Porous Media
(Peer reviewed; Journal article, 2014)The standard approximation for the flow-pressure relationship in porous media is Darcy's law that was originally derived for infiltration of water in fine homogeneous sands. Ever since there have been numerous attempts to ... -
Analysis of left truncated data with an application to insurance data
(Master thesis, 2009-06-02)This thesis discusses different ways of analysing left truncated data when the lower bound itself is a stochastic variable. We will consider the possible dependence between the variable of interest and the truncating ... -
Analysis of multi-beam sonar echos of herring schools by means of simulation
(Doctoral thesis, 2013-05-31)The synchronized behavior of large schools of fish can be a fascinating sight and has caught the attention of researchers for decades. Schools of thousands, or even millions of fish can seemingly function as a single entity, ... -
Analysis of non-linear shallow water equations discretized on Arakawa C-grids
(Master thesis, 2016-06-01)To model the behaviour of flow and waves in three dimensions, one may use the Navier-Stokes equations. These equations leads to the shallow water equations, when the depth is much smaller than the wavelength. The shallow ... -
Analysis of the Numerical Solutions of the Elder Problem Using Big Data and Machine Learning
(Journal article; Peer reviewed, 2023-03-20)In this study, the numerical solutions to the Elder problem are analyzed using Big Data technologies and data-driven approaches. The steady-state solutions to the Elder problem are investigated with regard to Rayleigh ... -
Analysis of the probability of default in peer-to-peer lending. Application of different classification techniques.
(Master thesis, 2018-12-22)In this thesis, peer-to-peer lending is explored and analyzed with the objective of fitting a model to accurately predict if borrowers default on their loans or not. The foundation for the thesis is a dataset from LendingClub, ... -
Analytical Methods for Upscaling of Fractured Geological Reservoirs
(Doctoral thesis, 2015-10-16)Numerical simulations have become an essential tool for planning well operations in the subsurface, whether the application is petroleum production, geothermal energy, groundwater utilization or waste disposal and leakage. ... -
Analytical solutions for aquifer thermal energy storage
(Peer reviewed; Journal article, 2017-02)The concept of aquifer thermal energy storage involves injection of water at elevated temperature, and possibly nonambient salinity, into a host aquifer. We consider axisymmetric injection, wherein both the composition and ... -
Analytical, combinatorial and topological properties of quadratic differentials and their applications
(Doctoral thesis, 2017-12-13)Quadratic differentials first appeared in 1930s in works of Teichmuller in connection with moduli problem for Riemann surfaces. Later it was revealed that quadratic differ- entials and their trajectories give solutions to ... -
Application of the Galerkin’s method on the problem of cellular convection induced by surface tension gradients.
(Department of Applied Mathematics report, Research report, 1971-11) -
Application of Vertically-Integrated Models with Subscale Vertical Dynamics to Field Sites for CO2 Sequestration
(Peer reviewed; Journal article, 2014)To address the engineering questions on security issues of geological carbon sequestration (GCS), a broad range of computational models with different levels of complexity have been developed - from multiphase multicomponent ... -
Applications of topological cyclic homology to algebraic K-theory
(Journal article; Peer reviewed, 2023) -
An Approach for Investigation of Geochemical Rock-Fluid Interactions
(Chapter, 2014)Geochemistry has a substantial impact in exploiting of geothermal systems. When water is injected in a geothermal reservoir, the injected water and in-situ brine have different temperatures and chemical compositions and ...