Browsing Department of Mathematics by Title
Now showing items 854-873 of 901
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Udvikling af elevers matematiske forståelse gennem helklassediskussion
(Journal article; Peer reviewed, 2021)I denne artikel vil jeg på baggrund af udvalgt litteratur og empiri diskutere og give eksempler på, hvordan en matematiklærer kan gennemføre en dialog på klassen. Klasserumsdialoger kritiseres ofte, og somme tider med god ... -
Unconditionally stable Methods for Hamilton-Jacobi Equations
(Department of Applied Mathematics report, Research report, 2000-05) -
Understanding learner behaviour in online courses with Bayesian modelling and time series characterisation
(Journal article; Peer reviewed, 2021)The intrinsic temporality of learning demands the adoption of methodologies capable of exploiting time-series information. In this study we leverage the sequence data framework and show how data-driven analysis of temporal ... -
Undervisning av integrasjon før derivasjon
(Master thesis, 2020-06-25) -
A unified multilevel framework of upscaling and domain decomposition
(Conference object, 2010)We consider multiscale preconditioners for a class of mass-conservative domain-decomposition (MCDD) methods. For the application of reservoir simulation, we need to solve large linear systems, arising from finite-volume ... -
An Upscaled Model for Permeable Biofilm in a Thin Channel and Tube
(Peer reviewed; Journal article, 2020-01-21)In this paper, we derive upscaled equations for modeling biofilm growth in porous media. The resulting macroscale mathematical models consider permeable multi-species biofilm including water flow, transport, detachment and ... -
Upscaled modeling of CO2 injection and migration with coupled thermal processes
(Peer reviewed; Journal article, 2013)A practical modeling approach for CO2 storage over relatively large length and time scales is the vertical-equilibrium model, which solves partially integrated conservation equations for flow in two lateral dimensions. We ... -
Upscaling of Nonisothermal Reactive Porous Media Flow under Dominant Péclet Number: The Effect of Changing Porosity
(Peer reviewed; Journal article, 2016)Motivated by rock-fluid interactions occurring in a geothermal reservoir, we present a two-dimensional pore scale model of a thin strip consisting of void space and grains, with fluid flow through the void space. Ions in ... -
Upscaling of the Coupling of Hydromechanical and Thermal Processes in a Quasi-static Poroelastic Medium
(Peer reviewed; Journal article, 2018-08)We undertake a formal derivation of a linear poro-thermo-elastic system within the framework of quasi-static deformation. This work is based upon the well-known derivation of the quasi-static poroelastic equations (also ... -
Upscaling, analysis, and iterative numerical solution schemes for thermo-poroelasticity
(Doctoral thesis, 2019-06-28)The main objectives of this research project is to provide part of the mathematical models and simulation technology required to assess large-scale deployment of thermomechanical subsurface energy storage in the context ... -
User's guide to Express: A tool for building knowledge-based systems for statistical data analysis
(Statistical report no. 27, Research report, 1996-07) -
Users guide for a modesplit σ-coordinate numerical Ocean model : Version 1.0
(Department of Applied Mathematics report, Research report, 2000-01) -
Using a σ-coordinate numerical ocean model for simulating the circulation at Ormen Lange
(Department of Applied Mathematics report, Research report, 2000-01) -
Using sensitivities and vertical-equilibrium models for parameter estimation of CO2 injection models with application to Sleipner data
(Peer reviewed; Journal article, 2017-07)A key part of planning CO2 storage sites is to devise a monitoring strategy with proper modelling support. Herein, we show how a simulation framework that incorporates adjoint-based sensitivities can be combined with ... -
Using the bottleneck distance to compare homological methods of detecting atmospheric rivers
(Master thesis, 2018-02-21) -
Utfordringar P-elevar møter på matematikkeksamen. Førebuingar som kan nytte.
(Master thesis, 2019-06-22)I masterprosjektet har eg forsøkt å finne ut kva utfordringar P elevar møter på eksamen, og kva førebuingar ein kan gjere for å prestere godt på eksamen. Med P elevar meiner eg dei elevane som vel praktisk matematikk på ... -
Utfordringer i klasseromssamtalen
(Master thesis, 2022-06-01)Utfordringer i klasseromssamtalen er en masteroppgave som har tatt for seg temaet kommunikasjon og klasseromssamtaler i matematikkundervisning. Sammen med en medstudent har jeg gjennomført et opplegg i tre forskjellige ... -
Validation of close‐kin mark–recapture (CKMR) methods for estimating population abundance
(Peer reviewed; Journal article, 2019)1. Knowing how many individuals there are in a population is a fundamental problem in the management and conservation of freshwater and marine fish. We compare abundance estimates (census size, Nc) in seven brook trout ... -
Valuation of Guaranteed Investment Contracts
(Master thesis, 2002) -
Value of different data types for estimation of permeability
(Master thesis, 2011-06-01)The interrelation between sensitivity, non-linearity and scale, associated with the inverse problem of identifying permeability from measurements of fluid flow, is considered. The gouverning equations for fluid flow in a ...