Browsing Institutt for fysikk by Title
Now showing items 1592-1611 of 2698
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Novel Y2O3-codoped Yb/Tm-doped picosecond fiber laser
(Journal article; Peer reviewed, 2013)We demonstrate the novel picosecond mode-locked Y2O3-codoped Yb/Tm-doped fiber lasers, operating at 1950 nm and producing pulses of up to 1 nJ energy, using a SESAM and an Er-doped pump fiber laser operating at the wavelength ... -
Novice and expert graph reading behavior
(Master thesis, 2023)En persons øyebevegelser er en indikasjon på hva de tenker, og dette er premisset bak studier rundt hvordan øyebevegelser kan bli brukt til å undersøke forskjeller mellom mennesker. I denne oppgaven er dette brukt til å ... -
NRLMSIS 2.1: An Empirical Model of Nitric Oxide Incorporated Into MSIS
(Peer reviewed; Journal article, 2022)We have developed an empirical model of nitric oxide (NO) number density at altitudes from ∼73 km to the exobase, as a function of altitude, latitude, day of year, solar zenith angle, solar activity, and geomagnetic activity. ... -
Nuclear coalescence and collective behaviour in small interacting systems
(Peer reviewed; Journal article, 2022)The production of light nuclei in particle collisions can be described as the coalescence of nucleons into nuclei. In most coalescence models used in heavy ion collisions, the probability for coalescence is controlled ... -
Nuclear coalescence, collective behaviour and emission volume in small interacting systems
(Peer reviewed; Journal article, 2022)The production of light nuclei and antinuclei in particle collisions can be described as the coalescence of final state nucleons that are close in phase space. In heavy ion collisions, it is usually assumed that the formation ... -
Nuclear Equation of State and Neutron Stars
(Master thesis, 2017)In this thesis, we study the mass-radius relation of neutron stars. This relation is computed using stellar structure equations and an equation of state. We use the Tolman-Oppenheimer-Volkoff (TOV) equation and the mass ... -
Nucleation and Growth of Brushite in the Presence of Alginate
(Journal article, 2015)Biomineral formation in vivo is a complex process regulated by functional molecules. Highlighting the mechanisms underlying biomineralization is necessary for a better understanding of in vivo processes and for enhanced ... -
Number Theoretic Properties of Elliptic Curves
(Master thesis, 2014)In this thesis we will look at some of the theory of elliptic curves. We will use this for some number theoretical examples, use methods to determine the number of points on an elliptic curve over finite fields, and also ... -
Numerical analysis of boundary conditions in a Lagrangian particle model for vertical mixing, transport and surfacing of buoyant particles in the water column
(Journal article; Peer reviewed, 2019)Lagrangian particle models are used for many applications in the ocean sciences, including transport modelling of oil spills, fish eggs and larvae, plastics, and sediment particles. In the context of oil spill modelling, ... -
Numerical integrators for Lagrangian oceanography
(Peer reviewed; Journal article, 2020)A common task in Lagrangian oceanography is to calculate a large number of drifter trajectories from a velocity field pre-calculated with an ocean model. Mathematically, this is simply numerical integration of an Ordinary ... -
Numerical Investigations on Nanobubble Stability
(Master thesis, 2015)This thesis discusses the stability and lifetime of bulk and surface nanobubbles. Two numerical models are presented which have been developed in order to investigate aspects of the dynamic equilibrium mechanism using ... -
Numerical methods for solving complex heat exchanger models in transient operation
(Master thesis, 2014)Heat exchangers are important in many industrial systems. In order to maximizeheat transfer while fulfilling requirements to size and weight, it is crucial to havegood numerical tools available. Sintef has developed a ... -
Numerical modelling of marine icing on offshore structures and vessels
(Master thesis, 2012)A numerical model for predicting icing on offshore structures and vessels has been developed and implemented. The model calculates the icing caused by freezing sea spray, and focuses on two distinct sources of spray - spray ... -
Numerical Modelling of the Optical Properties of Truncated and Coated Prolate Spheroidal Nanoparticles
(Master thesis, 2013)The optical properties of an island film of truncated and coated prolate spheroidal particles are studied numerically by implementing support for this island geometry in the GranFilm software. The underlying theory of the ... -
Numerical Models for Jump Diffusion Processes: A Finite Element Approach
(Master thesis, 2013)In this thesis we propose a finite element solution to the jump diffusion problem for pricing options. We focus on assets following CGMY processes and formulate the problem in weak bilinear form. In the case where the CGMY ... -
Numerical Simulations of Flow Past a Truss Tower with an Evaluation of Tower Shadow Models for Wind Turbines
(Master thesis, 2011)The performance of steady-state tower shadow models for a wind turbine truss tower have been evaluated. The Reynolds-Averaged-Navier-Stokes (RANS) approach, in conjunction with the $k-omega$ Shear-Stress-Transport (SST) ... -
Numerical Simulations of Scattering of Light from Two-Dimensional Rough Surfaces Using the Reduced Rayleigh Equation
(Journal article; Peer reviewed, 2013)A formalism is introduced for the non-perturbative, purely numerical, solution of the reduced Rayleigh equation (RRE) for the scattering of light from two-dimensional penetrable rough surfaces. Implementation and performance ... -
Numerical Solution of Stochastic Differential Equations by use of Path Integration: A study of a stochastic Lotka-Volterra model
(Master thesis, 2011)Some theory of real and stochastic analysis in order to introduce the Path Integration method in terms of stochastic operators. A theorem presenting sufficient conditions for convergence of the Path Integration method is ... -
Numerical studies of Supernova Remnants
(Master thesis, 2013)Supernovae are very luminous events, on the scale of entire galaxies, and deposit mass and large amounts of energy in to the surrounding interstellar medium. In this workthe effect of a supernova on the surrounding medium ...