Blar i Department of Mathematics på tittel
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Identification of a nonlinear parameter in a parabolic equation by a linear approach
(Department of Applied Mathematics report, Research report, 1993-03) -
Identification of subsurface structures using electromagnetic data and shape priors
(Journal article, 2015-03)We consider the inverse problem of identifying large-scale subsurface structures using the controlled source electromagnetic method. To identify structures in the subsurface where the contrast in electric conductivity can ... -
Identifying Stagnation Zones and Reverse Flow Caused by River-Aquifer Interaction: An Approach Based on Polynomial Chaos Expansions
(Journal article; Peer reviewed, 2021)Fluctuating stream stages and peak-flow events can significantly influence the interactions between streams and aquifers and modify the hydraulic gradient, the flux exchange and the subsurface flow paths. As a result, ... -
Ill Posedness Results for Generalized Water Wave Models
(Master thesis, 2013-06-03)In the first part of the study, the weak asymptotic method is used to find singular solutions of the shallow water system in both one and two space dimensions. The singular solutions so constructed are allowed to contain ... -
Ill-posedness of the Maxwell–Dirac system below charge in space dimension three and lower
(Journal article; Peer reviewed, 2021)The Maxwell–Dirac system describes the interaction of an electron with its self-induced electromagnetic field. In space dimension d=3 the system is charge-critical, that is, L2-critical for the spinor with respect to ... -
Image Denoising Algorithms Based on the Dual Formulation of Total Variation
(Master thesis, 2009-07-17) -
Image Inpainting using Nonlinear Partial Differential Equations
(Master thesis, 2005-05-23) -
Image processing, filtering and segmentation of data-sets for reservoir simulation
(Doctoral thesis; Peer reviewed, 2013-10-11)Paper A: 2-D Visualisation of Unstable Waterflood and Polymer Flood for Displacement of Heavy Oil. Full-text not available in BORA. The published version is available at: http://dx.doi.org/10.2118/154292-ms -
Image-Derived Forces in an Elastic Image Registration Model
(Master thesis, 2021-06-01)In this work, we explore the role of image-derived forces in an elastic image registration model, and investigate the possibility of accurately estimating displacement fields. Further, we propose a novel, physically ... -
Impact and detectability of hypothetical CCS offshore seep scenarios as an aid to storage assurance and risk assessment
(Journal article; Peer reviewed, 2020)Carbon Capture and Storage has the potential to make a significant contribution to the mitigation of climate change, however there is a regulatory and societal obligation to demonstrate storage robustness and minimal local ... -
Impact of compressibility in vertically integrated models for CO2 storage
(Master thesis, 2012-06-01)Recent work have shown that simplified models obtained by vertical integration give reasonable approximations for CO2 migration. Most of the work previously done on this topic assumes that CO2 is an incompressible fluid, ... -
Impact of drone route geometry on information collection in wireless sensor networks
(Journal article; Peer reviewed, 2020-09)The recent technological evolution of drones along with the constantly growing maturity of its commercialization, has led to the emergence of novel drone-based applications within the field of wireless sensor networks for ... -
The impact of local-scale processes on large-scale CO2 migration and immobilization
(Peer reviewed; Journal article, 2011)Storage security of injected carbon dioxide (CO2) is an essential component of risk management for geological carbon sequestration operations. During the injection and early post-injection periods, CO2 leakage may occur ... -
Impact of parents' education on variation in hospital admissions for children: a population-based cohort study
(Journal article; Peer reviewed, 2021)Objectives To assess the impact of parental educational level on hospital admissions for children, and to evaluate whether differences in parents' educational level can explain geographic variation in admission rates. ... -
Impact of temporomandibular joint complaints on tinnitus-related distress
(Peer reviewed; Journal article, 2019-08-22)There is increasing evidence of associations between the presence of temporomandibular joint (TMJ) disorders and tinnitus. It has been recently proposed that tinnitus patients with TMJ complaints could constitute a subtype, ... -
Impact of time-dependent wettability alteration on the dynamics of capillary pressure
(Journal article; Peer reviewed, 2020)Wettability is a pore-scale property that has an important impact on capillarity, residual trapping, and hysteresis in porous media systems. In many applications, the wettability of the rock surface is assumed to be constant ... -
Implementation of an MPFA/MPSA-FV Solver for the Unsaturated Flow in Deformable Porous Media
(Master thesis, 2018-06-22)The Unsaturated Flow In Deformable Porous Media (UFIDPM) plays a crucial role in several academic and industrial applications such as; cracks induced by desiccation, collapsing soils, ground movement involving expansive ... -
Implementation of mixed-dimensional models for flow in fractured porous media
(Peer reviewed; Journal article, 2019)Models that involve coupled dynamics in a mixed-dimensional geometry are of increasing interest in several applications. Here, we describe the development of a simulation model for flow in fractured porous media, where the ... -
Implications of Protected Areas to Optimal Management of Marine Resources
(Master thesis, 2005)The thesis explores how the introduction of a marine protected area influences the optimal management of a marine resource, i.e. fish stock. Logistic growth functions are applied to a deterministic model with a migration ... -
Implicit linearization scheme for nonstandard two-phase flow in porous media
(Journal article; Peer reviewed, 2021)In this article, we consider a nonlocal (in time) two‐phase flow model. The nonlocality is introduced through the wettability alteration induced dynamic capillary pressure function. We present a monotone fixed‐point iterative ...