Now showing items 1-10 of 437
Karakterisering av silika nanopartikler for økt oljeutvinning
(The University of Bergen, 2014-09-01)
Anvendelsen av silika nanopartikler for EOR-formål krever stabile dispersjoner ved typiske reservoarforhold. Optimale silikadispersjoner vil være stabile over lengre tid ved nøytrale pH- verdier og høye elektrolyttko ...
The BABAR detector: Upgrades, operation and performance
The BaBar detector operated successfully at the PEP-II asymmetric e+e− collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the ...
R-parity violating chargino decays at the LHC
Supersymmetric models with R-parity violation (RPV) have become more popular following the lack of any excess of missing energy events at the 8 TeV LHC. To identify such models, the suggested searches generally rely on the ...
The number of link and cluster states: the core of the 2D q state Potts model
(Institute of Physics Publishing, 2005-11-30)
Due to Fortuin and Kastelyin the q state Potts model has a representation as a sum over random graphs, generalizing the Potts model to arbitrary q is based on this representation. A key element of the random cluster ...
Measurement of radon concentrations and temperature profiles in boreholes
(The University of Bergen, 2013-08-16)
This thesis is based on a research project aimed at measuring temperature gradients and radon concentrations in boreholes. This was done by observing radon activity and temperature profiles in twelve boreholes that were ...
Determining the fibrillar orientation of bast fibres with polarized light microscopy: the modified Herzog test (red plate test) explained
(JohnWiley & Sons Ltd on behalf of Royal Microscopical Society, 2013)
The identification of bast fibre samples, in particular, bast fibres used in textiles, is an important issue in archaeology, criminology and other scientific fields. One of the characteristic features of bast fibres is ...
Modeling Hydrate Phase Transitions in Porous Media Using a Reactive Transport Simulator
(The University of Bergen, 2014-10-24)
Gravitino dark matter and the flavour structure of R-violating operators
We study gravitino dark matter and slow gravitino decays within the framework of R-violating supersymmetry, with particular emphasis on the flavour dependence of the branching ratios and the allowed R-violating couplings. ...
Measurements of four-lepton production at the Z resonance in pp collisions at √s = 7 and 8 TeV with ATLAS
(American Physical Society, 2014-06-13)
Measurements of four-lepton (4ℓ, ℓ=e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions mℓ+ℓ−>5 GeV and ...
Kinetic description of particle emission from expanding source
The freeze out of the expanding systems, created in relativistic heavy ion collisions, is discussed. We combine kinetic freeze out equations with Bjorken type system expansion into a unified model. The important feature ...