0 antall prosjekter

BEMATA-Beregningsorientert matematikk i anv.

"An international conference on PDE-Based Image Processing and Related Inverse Problems" CMA, Oslo, August 8-12 2005

With the advance of modern computers, the world is becoming more and more digital. Some tasks, which involved a huge amount of data and seem to be impossible a few years ago, is now solved and used in many different applications. Especially, huge amount o f data containing digital images needs to...

Tildelt: kr 69 999

Prosjektperiode: 2005-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Third National Conference on Computational Mechanics - MekIT'05

The project is the arrangement of the Third National Conference on Computational Mechanics in Trondheim in May 2005. The project comprises practical, technical and scientific preparations for the two-day conference, including the editing of the conference proceedings.

Tildelt: kr 39 999

Prosjektperiode: 2005-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Pressure-Based Hybrid Flux Splitting Schemes for Compressible Flows

Multiphase flow simulations is a field of practical interest both to the petroleum industry (transport of oil and gas) and the nuclear industry (cooling of reactors). The main goal of this project is to develop improved numerical methods for the mathemati cal models describing such flows. To en...

Tildelt: kr 1,4 mill.

Prosjektperiode: 2005-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Vinterskoler i beregningsorientert matematikk 2004 - 2006

Ved norske universiteter gis det i dag en rekke kurs i teori og beregningsmetoder for partielle differensialligninger. De årlige vinterskolene i beregningsorientert matematikk har siden starten i 2001 etablert seg som et supplerende forum for formidling a v moderne beregningsmetoder og som en vik...

Tildelt: kr 0,59 mill.

Prosjektperiode: 2004-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

New scale-space techniques with applications to climate reserach and imaging

Different scale-space methods for independent and dependent data have been developed recently. Such methods are very useful for analysing climate data and medical image data. Peaks in one-dimensional data can be found by the newly developed scale-space me thod entitled posterior smoothing. A two-...

Tildelt: kr 3,2 mill.

Prosjektperiode: 2004-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Analysis and numerics for Nonlinear Waves (NonWave)

The key idea of this proposal is to combine the modern theory of nonlinear partial differential equations with constructive numerical techniques to study rigorously important wave phenomena, many in the context of water waves. For several important nonlin ear partial differential equations of thi...

Tildelt: kr 1,4 mill.

Prosjektperiode: 2004-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Mathematical modelling of stability and dynamics of localized activity in biological cell networks

In the last decades great advances have been made in mapping the neural circuitry of the brain. This has been facilitated by novel experimental techniques for studies both at the single-cell and systems levels. It still remains, though, to combine all the pieces in the puzzle to a coherent pictu...

Tildelt: kr 1,8 mill.

Prosjektperiode: 2004-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Parameter estimation and geometric fiber reconstruction from MR diffusion tensor images of the brain

The goal for the proposed project is to investigate mathematical and computational aspects of each step in the chain of DTI processing - from data acquisition to final reconstruction of gross fiber geometry in individual brains. We think this is a good project for a PhD candidate because it invol...

Tildelt: kr 1,8 mill.

Prosjektperiode: 2004-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Mathematical models and numerical methods for simulating the electrical activity of the heart

Our aim is to develop numerical methods and software that enable increased understanding of elctrophysiology of the heart. The project will be a part of a larger project named Cardiac Computations (CC) at the Scientific Computing Department at Simula Rese arch Laboratory. The CC-project is concer...

Tildelt: kr 3,1 mill.

Prosjektperiode: 2003-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Tsunamis generated by asteroid impacts, rockslides and landslides

We address important, historical tsunami (large destructive wave) events. 1. The Mjølnir asteroid impact in the Barents Sea (142 mill. years BP). The environmental consequences of marine impacts from asteroids are not sufficiently appreciated and understood. The Mjølnir crater is one of the few k...

Tildelt: kr 2,7 mill.

Prosjektperiode: 2003-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

An accurate approximation for compositional flow models

The group has over several years worked on solution methods for Compositional Models in porous media. A 3D experimental simulator is implemented and is running om parallell computers as well as work stations. The approximation of convection and overall it eration solution has to be improved. We w...

Tildelt: kr 0,33 mill.

Prosjektperiode: 2003-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Mathematical methods in mesh-based modelling

Mesh-based geometric modelling refers to the modelling of surfaces of 3D geometric objects using polygonal meshes, typically triangular meshes. We are currently seeing a growing trend to model geometry using triangular meshes, and this is especially so in computer animation and medical imaging, ...

Tildelt: kr 4,9 mill.

Prosjektperiode: 2003-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Evaluation of Bayesian hierarchical models

A trend in statistical analysis has been to consider more complex models. Such highly structured stochastic systems require numerical algorithms for making inference, which is a field of extensive research. Model evaluation in this context has however not been seriously addressed. One reason is ...

Tildelt: kr 3,8 mill.

Prosjektperiode: 2003-2007

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Modelling of meandering river evolution using CFD

The project will build on already existing state-of-the-art 3D CFD models for river flow and sediment transport. The models solve the Navier-Stokes equations with the k-epsilon turbulence model to compute the water flow. The convection-diffusion equation for sediment concentration is also solved,...

Tildelt: kr 1,6 mill.

Prosjektperiode: 2002-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Reduced basis modeling of hierarchical flow systems

Reduced basis methods are particularly attractive to use in order to reduce the number of degrees-of-freedom associated with a given numerical approximation to a set of partial differential equations; the computational complexity can be reduced to a level where potentially very complex systems c...

Tildelt: kr 1,6 mill.

Prosjektperiode: 2002-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Hedonic models of fish behaviour

The project aims at developing a new method for modelling behaviour in an individual-based model. The method evolves affective responses to sensory information, and the organisms are capable of receiving several different kinds of impressions simultaneous ly (e.g. temperature, density of conspeci...

Tildelt: kr 3,0 mill.

Prosjektperiode: 2002-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Latent variable models handled with optimization aided by automatic differentiation; application to marine resource assessments

The use of models with latent variables is important in the management of marine resources. Catch-at-age models used in fisheries stock assessments may contain several hundered unknown parameters, but the are typically only a few parameter of real interes t (e.g. current stock size). We will deve...

Tildelt: kr 3,4 mill.

Prosjektperiode: 2002-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Turbulence and turbulent heat/mass transfer in oceanic boundary layers

The project will use DNS to study turbulence in oceanic surface and bottom layers. Such a study will contribute to a deeper understanding of the processes in these layers such as turbulent diffusion and gas exchange. The DNS results will also be used for validating an anistropic LES sub-grid scal...

Tildelt: kr 4,0 mill.

Prosjektperiode: 2002-2006

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Biologisk fluiddynamikk

Doktorgradsprosjektet i anvendt matematikk ved Cambridge University er innen fagområdet biologisk fluiddynamikk og dreier seg om å utvikle en koherent matematisk modell for å beskrive strømning og osillasjon i biologiske (kollapserbare) rør. Dette arbeide t veiledes av professor T. J. Pedley, Hea...

Tildelt: kr 1,2 mill.

Prosjektperiode: 2001-2004

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

GI4PDE - Geometric Integration for Partial Differential Equations

Geometric Integration is an interdisciplinary area of research which is applying modern abstract geomterical ideas within numerical solution of differential equations. Situated in the intersection between pure and applied mathematics, computer science and mathematical physics, it is an activity w...

Tildelt: kr 2,9 mill.

Prosjektperiode: 2001-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Ikke-lineære modeller for samvirke mellom bølger og konstruksjoner

Gjennom et forstudium er det identifisert behov for videreutvikling av beregningsorienterte matematiske modeller hvor dagens prediksjonsverktøy har store svakheter og hvor de fysiske prosessene er sterkt ikke-lineære. Gevinsten av økt prediksjonsnøyaktige t vil ha stor betydning både for havbruks...

Tildelt: kr 3,0 mill.

Prosjektperiode: 2001-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Vinterskole i beregningsorientert matematikk

Ved norske universiteter gis det idag en rekke kurs i partielle differensialligninger og beregningsmetoder. Gjennom vinterskolen ønsker vi å opprette et supplerende forum for formidling av moderne teori og beregningsmetoder til studenter og vitenskapelig ansatte. Kursene gis på nasjonal basis, o...

Tildelt: kr 0,68 mill.

Prosjektperiode: 2001-2004

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Modellering av ekstreme havbølger og havbølgeklima på mesoskala

De siste årtier, med stor offshore-aktvitet, har fremskaffet en anselig datamateriale om havbølger. Vår viten om fenomenet har økt, men ennå gjenstår spørsmål av stor praktisk betydning. Fremst blant disse er spørsmål om ekstrembølger. Norske data om diss e bølgene fra målinger i våre farvann ble...

Tildelt: kr 3,4 mill.

Prosjektperiode: 2000-2004

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Computational Methods for Stratified Flows Involving Internal Waves

The objective will be achieved by means of the following key points. High quality research: High quality of the mathematical and numerical research is to be achieved thorugh strongly focus PhD-research topics supported by research performed by postdocs a nd senior scientists. Computational Scie...

Tildelt: kr 4,0 mill.

Prosjektperiode: 2000-2005

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Finding features from dependent data

When analyzing time series it is important to have methods for detecting whether a time series is nonstationary and when nonstationarities occur. Significant zero crossing of derivatives (siZer) is a newly developed method to explore features in independe nt data. Fourier transformations can be u...

Tildelt: kr 1,3 mill.

Prosjektperiode: 2000-2004

Sted: Ukjent Fylke

BEMATA-Beregningsorientert matematikk i anv.

Robust Numerical Methods for partial Differential Equations

During the last decades numerical simulations has become an indispenisble tool in science and engineering. In particular numerical approximations of partial differential equations are frequently an important ingredient in the design of such programs. Nume rical approx. of partial differential equ...

Tildelt: kr 4,0 mill.

Prosjektperiode: 2000-2005

Sted: Ukjent Fylke