Blar i Department of Mathematics på tittel
Viser treff 568-587 av 1096
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Modeling of relative permeabilities including dynamic wettability transition zones
(Journal article; Peer reviewed, 2021)Wettability is a pore-scale property that impacts the relative movement and distribution of fluids in a porous medium. There are reservoir fluids that provoke the surface within pores to undergo a wettability change. This ... -
Modeling the Process of Speciation Using a Multiscale Framework Including A Posteriori Error Estimates
(Journal article; Peer reviewed, 2022)This paper concerns the modeling and numerical simulation of the process of speciation. In particular, given conditions for which one or more speciation events within an ecosystem occur, our aim is to develop the necessary ... -
Modellering av Antropogenisk Allee Effekt (AAE)
(Master thesis, 2017-11-13) -
Modellering av overdispersjon i populasjonsdata
(Master thesis, 2023-11-20)I denne studien anvendte vi generaliserte lineære modeller (GLM) for å modellere populasjonsdata fra The Human Mortality Database (HMD) for Sverige. Dataene ble brukt til å predikere antall døde med alderstrinn og kalenderår ... -
Modellering og estimering av romlig avhengighet i forsikring
(Master thesis, 2015-06-01)De seneste årene har det blitt publisert flere studier hvor bayesianske hierarkiske modeller, med gitte spatiale avhengighetsstrukturer, blir foreslått som potensielle verktøy i forsikringsselskapers arbeid rettet mot ... -
Modelling and simulation of thermo-hydro-mechanical processes in fractured porous media
(Doctoral thesis, 2021-02-26)Understanding and predicting processes in fractured porous media is of wide interest, with applications such as geothermal energy extraction, water management and storage of CO$_2$ and energy. Characterisation and monitoring ... -
Modelling clusters of corporate defaults: Regime-switching models significantly reduce the contagion source
(Journal article; Peer reviewed, 2022)In this paper, we report robust evidence that the process of corporate defaults is time-dependent and can be modelled by extending an autoregressive count time series model class via the introduction of regime-switching. ... -
Modelling Fluid Flow and Heat Transport in Fractured Porous Media
(Master thesis, 2013-08-27)Flow in porous media is an important and well- researched topic in both academia and the industry. More accurate mathematical models are constantly sought after. Fractures in a porous medium can be an important contributor ... -
Modelling Geomechanical Impact of CO2 Injection Using Precomputed Response Functions
(Chapter; Peer reviewed, 2016)When injecting CO2 or other fluids into a geological formation, pressure plays an important role both as a driver of flow and as a risk factor for mechanical integrity. The full effect of geomechanics on aquifer flow can ... -
Modelling memory decay after injuries using household survey data from Khartoum State, Sudan
(Peer reviewed; Journal article, 2018-06-20)Background Injuries represent an important cause of morbidity and mortality worldwide. In retrospective epidemiological studies, estimated rates of reported injuries often decline considerably when information is included ... -
Modelling memory decay after injuries using household survey data from Khartoum State, Sudan
(Peer reviewed; Journal article, 2018-06-20)Background: Injuries represent an important cause of morbidity and mortality worldwide. In retrospective epidemiological studies, estimated rates of reported injuries often decline considerably when information is included ... -
Modelling of the Shear Dilation Based Hydraulic Stimulation in Enhanced Geothermal Systems Considering Fractures in Different Scales
(Conference lecture, 2016-09)A numerical approach for modelling of shear dilation of existing fractures in hydraulic stimulation of geothermal reservoirs at low elevated pressures is presented. The fractured rock in the reservoir is modelled as a ... -
Modelling of Three-Phase Flow Functions for Applications in Enhanced Oil Recovery
(Doctoral thesis, 2009-05-22) -
Modelling secondary circulations in stratified bi-directional flows: A potential mechanism for flux transfer from lower to upper fluid layers
(Journal article; Peer reviewed, 2023)Results are presented for new laboratory-scale numerical simulations of bi-directional stratified flows generated within an idealized trapezoidal sill-channel topography, focussing on the lateral (or secondary) flow structure ... -
Modelling the non-Hydrostatic Pressure in σ-coordinate Ocean Models
(Master thesis, 2006-09-22) -
Models for CO2 injection with coupled thermal processes
(Peer reviewed; Journal article, 2014)Large-scale models of carbon dioxide (CO2) storage in geological formations must capture the relevant physical, chemical and thermodynamic processes that affect the migration and ultimate fate of injected CO2. These processes ... -
Modern Variable Selection Methods with Empirical Analysis
(Master thesis, 2023-06-01)In the realm of modeling with big data including high-dimensional datasets, the challenge lies in extracting the most relevant and informative information while avoiding overfitting of general models, especially when it ... -
Modified action and differential operators on the 3-D sub-Riemannian sphere
(Peer reviewed; Journal article, 2010-12)Our main aim is to present a geometrically meaningful formula for the fundamental solutions to a second order sub-elliptic differential equation and to the heat equation associated with a sub-elliptic operator in the ... -
Moduli of curves on Enriques surfaces
(Journal article; Peer reviewed, 2020)We compute the number of moduli of all irreducible components of the moduli space of smooth curves on Enriques surfaces. In most cases, the moduli maps to the moduli space of Prym curves are generically injective or dominant. ... -
Moduli of non-standard Nikulin surfaces in low genus
(Journal article; Peer reviewed, 2020)Primitively polarized genus g Nikulin surfaces (S, M, H) are of two types, that we call standard and non-standard depending on whether the lattice embedding Z[H] ⊕⊥ N ⊂ Pic S is primitive. Here H is the genus g polarization ...