Now showing items 903-922 of 956

• #### Theoretical studies of CO2 hydrates formation and dissociation in cold aquifers using RetrasoCodeBright simulator ﻿

(World Scientific and Engineering Academy and Society, 2014)
Abstract: - Hydrates of CO2 and water can form during aquifer storage if the reservoir has regions where conditions of pressure and temperature are inside the hydrate forming conditions. A very common assumption is that ...
Journal article
• #### Theoretical studies of Methane Hydrate Dissociation in porous media using RetrasoCodeBright simulator ﻿

(Elsevier, 2012)
Methane hydrates in reservoir are generally not in chemical equilibrium, there may be several competing hydrate phase transitions like for instance hydrate dissociation due to pressure or temperature changes, hydrate ...
Journal article
• #### Thermally excited 630.0 nm emissions in the polar ionosphere ﻿

(The University of Bergen, 2018-08-24)
This thesis investigates the importance and significance of thermally excited 630.0 nm emissions in the cusp and polar ionosphere. Thermal excitation by heated ambient electrons in the cusp and polar ionosphere is a rarely ...
Doctoral thesis
• #### Thermodynamic and Kinetic Modeling of CH4/CO2 Hydrates Phase transitions ﻿

(International Energy and Environment Foundation (IEEF)., 2013)
Natural gas hydrates in reservoirs are thermodynamically unstable due to exposure to mineral surfaces and possibly undersaturated phases of water and hydrate formers. Changes in global temperatures also alter the ...
Journal article
• #### Tilstandsovervåkning av undervanns motordrift med lange forsyningskabler ﻿

(The University of Bergen, 2010-06-01)
Hensikten med denne mastergradsoppgaven er å sette opp et testanlegg bestående av forsyningskabel og induksjonsmotor for å teste om tilstandsovervåkning kan utføres ved strømanalyse av lange forsyningskabler. Det skal ...
Master thesis
• #### Time domain simulations of preliminary breakdown pulses in natural lightning ﻿

(Wiley, 2015-06)
Lightning discharge is a complicated process with relevant physical scales spanning many orders of magnitude. In an effort to understand the electrodynamics of lightning and connect physical properties of the channel to ...
Journal article
• #### Time-dependent angular analysis of the decay B0s→J/ψϕ and extraction of ΔΓ s and the CP-violating weak phase ϕ s by ATLAS ﻿

(Springer Verlag, 2012-12)
A measurement of B0s→J/ψϕ decay parameters, including the CP -violating weak phase ϕ s and the decay width difference ΔΓ s is reported, using 4.9 fb−1 of integrated luminosity collected in 2011 by the ATLAS detector from ...
Peer reviewedJournal article
• #### To Measure the Efficiency of Energy Transfer Systems Under External ﻿

(Universitetet i Bergen (UiB), 2014-06-03)
Transfer of power wirelessly through magnetic resonance is a hot topic these days not only for low power consumer electronics like laptops, cell phones etc. but also for high power applications like electric cars, trains ...
Master thesis
• #### Transduser med stabil åpningsvinkel over et stort frekvensområde. Design, konstruksjon og eksperimentelle målinger ﻿

(The University of Bergen, 2009-11-14)
Denne oppgaven tar sikte på å finne en mulig transduserkonstruksjon hvis hensikt er å lette arbeidet ved klassifisering av fiskesorter. Mer vil bli sagt om bakgrunn og motivasjon, men hovedmålet i denne oppgaven er å lage ...
Master thesis
• #### Transport and storage of CO2 in natural gas hydrate reservoirs ﻿

(Elsevier, 2009-02)
Storage of CO2 in natural gas hydrate reservoirs may offer stable long term deposition of a greenhouse gas while benefiting from methane production, without requiring heat. By exposing hydrate to a thermodynamically preferred ...
Journal article
• #### Transport mechanisms for CO2-CH4 exchange and safe CO2 storage in hydrate-bearing sandstone ﻿

(MDPI, 2015-06-08)
CO2 injection in hydrate-bearing sediments induces methane (CH4) production while benefitting from CO2 storage, as demonstrated in both core and field scale studies. CH4 hydrates have been formed repeatedly in partially ...
Journal article
• #### Transverse momentum dependence of D-meson production in Pb–Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV ﻿

(Springer, 2016-03)
The production of prompt charmed mesons D$^0$, D$^+$ and D$^{*+}$, and their antiparticles, was measured with the ALICE detector in Pb–Pb collisions at the centre-of-mass energy per nucleon pair, $\sqrt{s_{\rm NN}}$ of ...
Journal article
• #### Transverse momentum dependence of inclusive primary charged-particle production in p–Pb collisions at √sNN=5.02 TeV ﻿

(Springer, 2014-09)
The transverse momentum (pT) distribution of primary charged particles is measured at midrapidity in minimum-bias p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the LHC in the range 0.15 < pT < 50 GeV/c. ...
Journal article
• #### Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p-Pb Collisions at $\sqrt{s_{NN}}$ = 5.02 TeV ﻿

(American Physical Society, 2013-02)
The transverse momentum ($p_T$) distribution of primary charged particles is measured in non single-diffractive p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV with the ALICE detector at the LHC. The $p_T$ spectra measured ...
Journal article
• #### Transverse momentum spectra of charged particles in proton-proton collisions at $\sqrt{s}$ = 900 GeV with ALICE at the LHC ﻿

(Elsevier, 2010-09)
The inclusive charged particle transverse momentum distribution is measured in proton-proton collisions at $\sqrt{s} = 900$~GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity ...
Journal article
• #### Transverse sphericity of primary charged particles in minimum bias proton-proton collisions at $\sqrt{s}$=0.9, 2.76 and 7 TeV ﻿

(Springer, 2012-09)
Measurements of the sphericity of primary charged particles in minimum bias proton--proton collisions at $\sqrt{s}$=0.9, 2.76 and 7 TeV with the ALICE detector at the LHC are presented. The observable is linearized to be ...
Journal article
• #### A trigger readout system for the Forward Calorimeter(FoCal) ﻿

(The University of Bergen, 2012-11-20)
The University of Bergen, Norway is currently involved in the development and building of the Forward Calorimeter (FoCal) as an upgrade to the ALICE (A Large Ion Collider Experiment) detector at CERN (European Organization ...
Master thesis
• #### The true fluence distribution of terrestrial gamma flashes at satellite altitude ﻿

(American Geophysical Union, 2012-03-24)
Peer reviewedJournal article
• #### Turbulence, Vorticity and Lambda Polarization ﻿

(IOP Publishing, 2014)
Present highest energy heavy ion experiments show the dominance of the fluid dynamical processes. The possibility of new collective phenomena, rotation and turbulence occurs, which were known only in macroscopic systems ...
Conference object
• #### Two Higgs Doublets plus One Dark Matter Singlet ﻿

(The University of Bergen, 2010-08-01)
In this thesis an extension of the 2HDM (see chapter 1) is explored. The extension admits an extra inert singlet which is a dark matter candidate. Before the exploration a large part of the thesis (chapter 2) is an ...
Master thesis