### Recent Submissions

• #### Late Time Entropy Production in Leptogenesis Scenarios ﻿

(The University of Bergen, 2016-12-20)
In this thesis we will consider Standard Model (SM) Leptogenesis scenarios and determine the maximally allowed entropy production with respect to the mass of the lightest right handed neutrino. We extend the SM Leptogenesis ...
Master thesis
• #### Gravitino Dark Matter with Entropy Production constrained by Big Bang Nucleosynthesis ﻿

(The University of Bergen, 2016-12-16)
We are looking at a gravitino dark matter scenario with a general neutralino next-to-lightest supersymmetric particle. We are considering the primary decay channels of the neutralino, and we define the supersymmetric ...
Master thesis
• #### Characterization studies of a GEM detector prototype for the ALICE TPC upgrade for LHC Run 3 and beyond ﻿

(The University of Bergen, 2016-11-21)
The multiwire proportional chamber signal readout of the ALICE Time Projection Chamber (TPC) will be replaced by Gas Electron Multiplier (GEM) detectors to meet the new requirements due to higher collision rate and energies ...
Master thesis
• #### Electric spark energy required for igniting transient clouds of lycopodium dust in air using inherent dust cloud triggering of spark discharge. Influences of selected experimental parameters. ﻿

(The University of Bergen, 2016-12-01)
The catastrophic outcome of accidental explosions to humans and property has caused an increased need for new knowledge in order to prevent and mitigate the effects of such events. Amongst other substances, a wide range ...
Master thesis
• #### Special Core Analysis of Low Reservoir Quality Chalk ﻿

(The University of Bergen, 2016-11-19)
This experimental work investigates Low Reservoir Quality Chalk (LRQC) reservoir properties using outcrop samples from six zones. The thesis is part of Joint Chalk Research Programme, Phase 7 (JCR 7), a large interdisciplinary ...
Master thesis
• #### The impact of sunlight on high-latitude equivalent currents ﻿

(Wiley, 2016-03)
Ground magnetic field measurements can be mathematically related to an overhead ionospheric equivalent current. In this study we look in detail at how the global equivalent current, calculated using more than 30 years of ...
Journal article
• #### Absorption properties of high-latitude Norwegian coastal water: The impact of CDOM and particulate matter ﻿

(Elsevier, 2016-09)
We present data from measurements and analyses of the spectral absorption due to colored dissolved organic matter (CDOM), total suspended matter (TSM), phytoplankton, and non-algal particles (NAP) in high-latitude northern ...
Journal article
• #### Spontaneous symmetry breaking in the S3-symmetric scalar sector ﻿

(Springer, 2016-02)
We present a detailed study of the vacua of the S3-symmetric three-Higgs-doublet potential, specifying the region of parameters where these minimisation solutions occur. We work with a CP conserving scalar potential and ...
Journal article
• #### The impact of energetic electron precipitation on mesospheric hydroxyl during a year of solar minimum ﻿

(Wiley, 2016-06)
In 2008 a sequence of geomagnetic storms occurred triggered by high-speed solar wind streams from coronal holes. Improved estimates of precipitating fluxes of energetic electrons are derived from measurements on board the ...
Journal article
• #### Atomic resolution imaging of beryl: an investigation of the nano-channel occupation ﻿

(Wiley, 2016)
Beryl in different varieties (emerald, aquamarine, heliodor etc.) displays a wide range of colours that have fascinated humans throughout history. Beryl is a hexagonal cyclo-silicate (ring-silicate) with channels going ...
Journal article
• #### CP-Violation in the $ZZZ$ and $ZWW$ vertices at $e^+e^-$ colliders in Two-Higgs-Doublet Models ﻿

(Springer, 2016-05)
We discuss possibilities of measuring CP violation in the Two-Higgs-Doublet Model by studying effects of one-loop generated $ZZZ$ and $ZWW$ vertices. We discuss a set of CP-sensitive asymmetries for $ZZ$ and $W^+W^-$ ...
Journal article
• #### First performance results of the ALICE TPC Readout Control Unit 2 ﻿

(IOP, 2016-01)
This paper presents the first performance results of the ALICE TPC Readout Control Unit 2 (RCU2). With the upgraded hardware typology and the new readout scheme in FPGA design, the RCU2 is designed to achieve twice the ...
Journal article
• #### Oh no, it’s raining! A study of how information in online weather reports is interpreted, integrated, and used in everyday decision-making by laypeople ﻿

(The University of Bergen, 2016-11-18)
Different people in different occupations depend on weather forecasts to plan their work and recreational schedules. People with no expertise in meteorology frequently interpret weather forecasts and uncertainty information. ...
Doctoral thesis
• #### Risiko for spredning av flammer og røyk gjennom brannskiller ved endringer i bruk av sprinkler og røykkontroll i boligkvarter på petroleumsinnretninger. ﻿

(The University of Bergen, 2016-09-27)
Målet med oppgaven har vært å undersøke hvordan endringer i bruk av sprinkler og brannspjeld i boligkvarter på petroleumsinnretninger, har påvirket risiko for spredning av flammer og røyk gjennom ventilasjonskanaler. ...
Master thesis
• #### Estimation of Relative Permittivity and Thickness for Dielectric Materials Using an Open-Ended Waveguide Sensor ﻿

(The University of Bergen, 2016-09-10)
The main goal of this thesis has been to conduct a feasibility study on an open-ended waveguide sensor as a tool for estimating the relative permittivity and thickness of dielectric layers in the thickness range 0.5-5 ...
Master thesis
• #### Comparison of burning velocity differences in a numerical explosion simulator ﻿

(The University of Bergen, 2014-06-02)
A verification study of the two flame models in the numerical explosion simulation tool FLACS has been conducted. The beta flame model, and the SIF flame model has been tested in a 1D-channel at different time step sizes. ...
Master thesis
• #### Mesoscale ionospheric plasma irregularities and scintillation over Svalbard ﻿

(The University of Bergen, 2016-10-21)
This thesis investigates how navigation signals are compromised by ionospheric plasma irregularities in the auroral and polar ionosphere over Svalbard. In 2013, four multiconstellation global navigation satellite system ...
Doctoral thesis
• #### Scintillation and irregularities from the nightside part of a Sun-aligned polar cap arc ﻿

(American Geophysical Union, 2016-06-18)
In this paper we study the presence of irregularities and scintillation in relation to the nightside part of a long-lived, Sun-aligned transpolar arc on 15 January 2015. The arc was observed in DMSP UV and particle data ...
Journal article
• #### Severe and localized GNSS scintillation at the poleward edge of the nightside auroral oval during intense substorm aurora ﻿

(American Geophysical Union, 2015-12)
In this paper we study how GPS, GLONASS, and Galileo navigation signals are compromised by strong irregularities causing severe phase scintillation (σϕ>1) in the nightside high-latitude ionosphere during a substorm on 3 ...
Journal article
• #### Temporal characteristics and energy deposition of pulsating auroral patches ﻿

(Wiley, 2016-07-23)
We present a careful statistical analysis of pulsating aurora (PA) using all-sky green line (557.7 nm) images obtained at 3.3 Hz. Six well-defined individual PA patches are identified and extracted using a contouring ...
Journal article