Now showing items 257-276 of 770

• #### The Hall current system revealed as a statistical significant pattern during fast flows ﻿

(European Geosciences Union, 2008-11-05)
We have examined the dawn-dusk component of the magnetic field, BY , in the night side current sheet during fast flows in the neutral sheet. 237 h of Cluster data from the plasma sheet between 2 August 2002 and 2 October ...
Journal articlePeer reviewed
• #### Heavy flavor azimuthal correlations in PYTHIA generated proton-proton collisions at LHC energies ﻿

(The University of Bergen, 2014-11-20)
The ALICE detector at CERN is a promising tool for the study of the Quark-Gluon Plasma (QGP), an exotic state of matter thought to be present in the early Universe. The study of partonic energy loss reveals vital information ...
Master thesis
• #### Heterogeneous distributed calibration framework for the high level trigger in ALICE ﻿

(The University of Bergen, 2009-02-13)
This thesis focusses on the development of a distributed and re-configurable online calibration environment for the ALICE (A Large Ion Collider Experiment) HLT (High Level Trigger). ALICE1 is one of the four major ...
Doctoral thesis
• #### Heterogeneous Hydrate Nucleation on Calcite {1014} and Kaolinite {001} Surfaces: A Molecular Dynamics Simulation Study ﻿

(The University of Bergen, 2016-06-01)
Natural gas hydrates are of significant interest due to the great amount of methane that can potentially be utilised as an energy source. These methane resources are trapped in ice-like form, which is a concern ...
Master thesis
• #### The Higgs Boson in Less Constrained Supersymmetric Models ﻿

(The University of Bergen, 2012-06-01)
In this thesis, we explore the phenomenological minimal supersymmetric standard model (pMSSM) in the context of the Higgs boson. If the emerging results from the LHC are real, will the pMSSM be able to accommodate this? ...
Master thesis
• #### The Higgs-like boson spin from the center–edge asymmetry in the diphoton channel at the LHC ﻿

(Springer, 2015-05-07)
We discuss the discrimination of the 125 GeV spin-parity 0+ Higgs-like boson observed at the LHC, decaying into two photons, H→γγ, against the hypothesis of a minimally coupled JP=2+ narrow diphoton resonance with the same ...
Journal article
• #### High Back Pressure on Pressure Safety Valves (PSVs) in a Flare System. Developing the Simulation model, Identifying and analyzing the back-pressure build-up ﻿

(The University of Bergen, 2013-10-01)
Process safety is a disciplined framework for managing the integrity of operating systems and processes handling hazardous substances. It is achieved by applying good design principles, engineering, and operating and ...
Master thesis
• #### High voltage electrical discharges in the laboratory ﻿

(The University of Bergen, 2014-12-18)
A new phenomenon called terrestrial gamma-ray flashes (TGFs) was discovered early in the 1990s by the NASA satellite Compton Gamma-Ray Observatory. The short-duration bursts of highly energetic gamma-rays are caused by ...
Master thesis
• #### High-latitude magnetic fields and their time derivatives: interhemispheric similarities ﻿

(Springer, 2013-02-19)
There are two simple and objective measures of geomagnetic activity: the daily range of field components, and the daily maximum of the time derivative of the field. We study these using data from the geomagnetic latitude ...
Journal article
• #### High-order harmonic generation from graphene: Strong attosecond pulses with arbitrary polarization ﻿

(American Physical Society, 2013-05-03)
We explore high-order harmonic generation (HHG) from a graphene sheet exposed to intense femtosecond laser pulses based on the Lewenstein model. It is demonstrated that the HHG cutoff frequency increases with graphene ...
Peer reviewedJournal article
• #### Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV ﻿

(Springer, 2016-09)
The elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for $\pi^{\pm}$, $\mathrm{K}^{\pm}$ and p+$\overline{\mathrm{p}}$ in Pb-Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV were measured ...
Journal article
• #### History Matching with Reduced Parameterization and Fast Streamline-based Sensitivities ﻿

(The University of Bergen, 2012-09-27)
The main goal of history matching is to construct updated models capable of predicting the future performance of the reservoir more accurately. History matching method requires a solution of inverse problem to minimize the ...
Master thesis
• #### Holographic interferometry and its application in visualizing particle movements in continuous flow ﻿

(The University of Bergen, 2004)
This thesis presents the work performed at the Department of Physics and Technology at the University of Bergen during a collaborative project funded by Statoil. The parties in this collaboration were the University of ...
Master thesis
• #### Holographic multi-stereogram constructed from computer images : Applied 3-D printer ﻿

(The University of Bergen, 1996)
The aim of this thesis is to develop a method to convert computer images to a holographic film plate. In the recording process of holographic multi-stereograms, one uses a liquid crystal display (LCD) to show 70 different ...
Master thesis
• #### How different safety barriers affect the margin between available and required evacuation time ﻿

(The University of Bergen, 2015-06-01)
The main purpose of this thesis has been to document that people can evacuate to temporarily safe locations / safe distances during the defined escalating jet fire scenario. It has been important to document that ...
Master thesis
• #### How do laypeople evaluate the degree of certainty in a weather report? A case study of the use of the Web service yr.no ﻿

(American Meteorological Society, 2014-07)
Many people depend on and use weather forecasts to plan their schedules. In so doing, ordinary people with no expertise in meteorology are frequently called upon to interpret uncertainty with respect to weather forecasts. ...
Journal article
• #### How Often Do Thermally Excited 630.0 nm Emissions Occur in the Polar Ionosphere? ﻿

(American Geophysical Union, 2018-01)
This paper studies thermally excited emissions in the polar ionosphere derived from European Incoherent Scatter Svalbard radar measurements from the years 2000–2015. The peak occurrence is found around magnetic noon, where ...
Journal article
• #### How the IMF By induces a By component in the closed magnetosphere and how it leads to asymmetric currents and convection patterns in the two hemispheres ﻿

(Wiley, 2015-11-12)
We used the Lyon-Fedder-Mobarry global magnetohydrodynamics model to study the effects of the interplanetary magnetic field (IMF) By component on the coupling between the solar wind and magnetosphere-ionosphere system. ...
Journal article
• #### Hydratdannelse og metanproduksjon fra gasshydrat - produksjonsmetoder og resistivitetsutvikling ﻿

(The University of Bergen, 2009-11-20)
Ved høye trykk og lave temperaturer kan vannmolekyler danne strukturelle bur rundt et gjestemolekyl. Denne substansen er da i fast form og kalles hydrat. I naturlig forekomst av gasshydrat er metan det vanligste gjestemolekylet. ...
Master thesis
• #### Hydrate Formation and CH4 Production from Natural Gas Hydrates - Emphasis on Boundary Conditions and Production Methods ﻿

(The University of Bergen, 2009-05-13)
Natural gas hydrate is a solid state of gas and water at low temperature and high pressure. Gas hydrates are known to form hydrate plugs in production line, and has thus generally been considered a problem to the oil ...
Master thesis