Now showing items 31-40 of 437
Vanninjektivitet og svekking av kalk under injeksjon av kaldt vann
(The University of Bergen, 2014-12-05)
Primær oljeutvinning ved trykkavlastning gir ofte lav utvinningsgrad, og etterlater stor restoljemetning i reservoaret. For å forbedre oljeutvinningsgraden kan andre produksjonsmetoder benyttes; vanninjeksjon har i lang ...
Elektronikk for mangekanalsutlesning fra et Posisjonsfølsomt Fotomultiplikatorrør
(The University of Bergen, 2001)
Marine seismics with a pulsed combustion source and Pseudo Noise codes
There has been an ongoing debate for years of how dangerous seismic surveys are with respect to marine life. Marine seismics is today dominated by airgun technology, where high energy is generated by a release of compressed ...
Reactive transport modelling of hydrate phase transition dynamics in porous media
(The University of Bergen, 2015-03-27)
Gas hydrate is believed to be so abundant in nature that some estimates suggest it contains more than two times equivalent energy of the whole fossil fuels on Earth. Besides, reservoir hydrates have other important aspects ...
Onset of smoldering and transition to flaming fire
(The University of Bergen, 2013-06-28)
Aim: The aim of this work has been to investigate the effects of density, heat flux and boundary conditions on smoldering. Two focus areas were chosen: the onset of smoldering and the transition from smoldering to flaming ...
Multiphase Flow in Porous Media with Emphasis on CO2 Sequestration
(The University of Bergen, 2011-12-19)
Search for single top quark production via contact interactions at LEP2
Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-ofma ...
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 ...
A Golden-Channel Higgs Decay
(The University of Bergen, 2011-06-01)
With a Higgs mass greater than 190 GeV and lower than 300 GeV, the decay channel H --> ZZ --> 4l becomes what is referred to as the golden channel for Higgs decay (clean signal). Suppose a pair of on shell Zs with ...
Gamma-ray flow imaging
(The University of Bergen, 1992-03)