Browsing Department of Mathematics by Title
Now showing items 811-830 of 938
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Statistiske metoder for alder-periode-kohort-analyser. En sammenligning av nyere metoder med konvensjonelle generaliserte lineære modeller
(Master thesis, 2013-11-20)Masteroppgaven tar for seg statistiske metoder for alder-periode-kohort-analyser (APC-analyser). For en gitt respons forsøker APC-analyser å separere den påvirkningen som skyldes alder, fra den påvirkningen som er assosiert ... -
Statistiske modellar for alder-periode-kohort-effektar i epidemiologi
(Master thesis, 2011-05-20)Denne oppgåva ser på teorien for alder-periode-kohort-modellar og korleis desse kan implementerast i statistikkprogrammet R. Det er òg sett på korleis splinefunksjonar kan brukast i alder-periode-kohort-modellar og korleis ... -
Statistiske modellar for Poissonregresjon med modifiserte null-sannsyn, ZIP og ZAP
(Master thesis, 2011-05-05)Oppgåva omhandlar modellane zero-inflated og zero- altered Poissonfordeling, vanlegvis forkorta som ZIP og ZAP. Dette er to regresjonsmodellar som bruker Poisson som grunnleggjande fordeling, men som tillet sannsynet for ... -
Statistiske modeller basert på skjulte Markovkjeder i kontinuerlig tid
(Master thesis, 2012-06-01)I denne oppgaven har jeg tatt for meg situasjoner der observasjoner over tid kan tenkes å være generert ved en Markovkjede, og studert innvirkningen av ulike kovariater på intensitetene, med både binære og tidavhengige ... -
Statistiske modelleringer i det europeiske gassmarkedet
(Master thesis, 2015-06-01)I denne oppgaven studerer vi naturgassmarkedet i Europa. Først ser vi på hvilke forhold som påvirker gassprisen. Deretter studerer vi statistisk teori om tidsrekker, volatilitet og copula. Til slutt blir det gjort statistiske ... -
Stellarator - tokamak configurations
(Department of Applied Mathematics report, Research report, 1990-01) -
Still Water Performance Simulation of a SWATH Wind Turbine Service Vessel
(Master thesis, 2012-11-20)In this thesis I am making a computational fluid dynamics(CFD) simulation of a SWATH (Small Waterplane Area Twin Hull) wind turbine service vessel moving in still water at different speeds by using the CFD tool STAR-CCM+. ... -
Stochastic chain-ladder models in nonlife insurance
(Master thesis, 2008)This thesis examines the stochastic models which reproduce chain-ladder estimates used in reserve estimation for nonlife insurance. The chain-ladder method provides no information regarding the variability of the outcome, ... -
Stochastic data assimilation of observations with a detection limit
(Doctoral thesis, 2019-09-16) -
Stochastic organelle genome segregation through Arabidopsis development and reproduction
(Journal article; Peer reviewed, 2024)Organelle DNA (oDNA) in mitochondria and plastids is vital for plant (and eukaryotic) life. Selection against damaged oDNA is mediated in part by segregation – sorting different oDNA types into different cells in the ... -
Stochastic unit-root processes
(Master thesis, 2016-06-01)In practice there are many types of processes that have near unit roots and are very difficult to distinguish from standard unit-root processes, given a finite sample. In our thesis we study a particular class of such ... -
Streamline based History Matching
(Master thesis, 2009-05-07)Streamline based reservoir simulation has been used with great success in the petroleum industry for decades. Fast computational speed together with the fact that sensitivities can be computed analytically along streamlines ... -
A Streamline Front Tracking Method for Two- and Three-Phase Flow Including Capillary Forces
(Contemporary Mathematics; 295, Chapter, 2002) -
A streamline front tracking method for two- and three-phase flow including capillary forces.
(Department of Applied Mathematics report, Research report, 2001-10) -
Streamline methods for parabolic differential equations.
(Master thesis, 2008)Parabolic advection-diffusion equations arise when modelling flow in porous media. We will in this thesis discuss two different problem set-ups from which these types of equations arise. - Groundwater contamination with ... -
Streamline Tracing on Irregular Grids
(Master thesis, 2003) -
Stromule Geometry Allows Optimal Spatial Regulation of Organelle Interactions in the Quasi-2D Cytoplasm
(Journal article; Peer reviewed, 2023)In plant cells, plastids form elongated extensions called stromules, the regulation and purposes of which remain unclear. Here, we quantitatively explore how different stromule structures serve to enhance the ability of a ... -
A strongly degenerate convectio-diffusion Problem modeling centrifugation of flocculated Suspensions.
(Department of Applied Mathematics report, Research report, 2000-06) -
Students’ evaluation of academic courses: An exploratory analysis to an Italian case study
(Journal article; Peer reviewed, 2021)Students’ evaluations of teaching is a common practice in higher education institutions, with the main purpose of improving course quality and effectiveness. In this paper we would like to contribute to the existing ... -
A study in the effects of different treatments on the growth of high fluorescence virus.
(Master thesis, 2011-09-01)