Now showing items 21-40 of 631

• #### Energetic particle precipitation and polar surface air temperature variability ﻿

(The University of Bergen, 2017-06-16)
Energetic Particle Precipitation (EPP) is known to have an impact on the chemical and thermal properties of the middle and upper atmosphere. Recent studies have also found ground level temperature anomalies in the polar ...
Master thesis
• #### Energy, Entropy and Sustainable Development with Focus on Nuclear Fusion ﻿

(The University of Bergen, 2017-06-13)
The results of this thesis are twofold. First, based on the fundamental work of Ervin Schrödinger on sustainable development and its relation to entropy, we develop a program for discussing both the kinetic and configurational ...
Master thesis
• #### Optisk goniometer for optimalisering av retningsbestemt solenergi ﻿

(The University of Bergen, 2017-06-13)
Det er et økende fokus på fornybar energi og bærekraftig matproduksjon, det vil derfor være nyttig med teknologi som kan føre til økt effektivitet i produksjon av dette. Utnyttelse av solenergi er et felt som er mye brukt, ...
Master thesis
• #### Monte Carlo simulations of neutron doses from pencil beam scanning proton therapy ﻿

(The University of Bergen, 2017-06-13)
Introduction: Proton therapy is a more advanced form of radiotherapy that allows better dose conformity to the tumor and a homogeneous dose distribution. A side effect however is the production of secondary neutrons generated ...
Master thesis
• #### D0-electron correlations in p–Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV ﻿

(The University of Bergen, 2017-04-21)
In collisions of lead nuclei at the Large Hadron Collider (LHC) at CERN, a state of matter called Quark-Gluon Plasma (QGP) is formed, where quarks and gluons are no longer confined into hadrons. Heavy-flavour quarks, ...
Doctoral thesis
• #### Learning science in interactive exhibitions. Frameworks for design and evaluation of material for exploratory learning experiences ﻿

(The University of Bergen, 2017-03-10)
This study addresses utilization of interactive science exhibitions as resources that support students&rsquo; progress towards conceptual understanding of science. Informed by previous empirical studies related to our area ...
Doctoral thesis
• #### Magnetic coordinate systems ﻿

(Springer, 2017-03)
Geospace phenomena such as the aurora, plasma motion, ionospheric currents and associated magnetic field disturbances are highly organized by Earth’s main magnetic field. This is due to the fact that the charged particles ...
Journal article
• #### North–South Asymmetries in Earth’s Magnetic Field. Effects on High-Latitude Geospace ﻿

(Springer, 2017-03)
The solar-wind magnetosphere interaction primarily occurs at altitudes where the dipole component of Earth’s magnetic field is dominating. The disturbances that are created in this interaction propagate along magnetic field ...
Journal article
• #### Scale size-dependent characteristics of the nightside aurora ﻿

(Wiley, 2017-02)
We have determined the spatiotemporal characteristics of the magnetosphere-ionosphere (M-I) coupling using auroral imaging. Observations at fixed positions for an extended period of time are provided by a ground-based ...
Journal article
• #### Development of a Photothermal Reactor for Evaporation of Nanofluids Under External Radiation ﻿

(The University of Bergen, 2017-01-27)
Several studies showed that it is possible to generate vapor from water-based nanofluid irradiated with external radiation, but few studies discussed the possi- bility to boil it. In This research the possibility to ...
Master thesis
• #### 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
• #### 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
• #### 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
• #### 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
• #### 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
• #### 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
• #### 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
• #### 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