Now showing items 21-30 of 385
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 ...
UV and aerosol climatology based on simulations and measurements by satellites and ground station
(The University of Bergen, 2013-03-22)
Solar radiation (200–4,000 nm) is very important for the climate system on Earth. It provides heat and drives the photosynthesis in plants to fuel all life. It plays a major role in the original synthesis of biomolecules ...
The effect of fluid viscosity and geometry on hydrocyclone performance
(The University of Bergen, 2015-02-02)
Hydrocyclones have been widely used throughout industries for separating sand particles of various sizes and shape from fluids. Producing petroleum resources includes amounts of water, which contain different amounts of ...
Current systems associated with Non-Conjugate Aurora
(The University of Bergen, 2015-01-20)
The main goal of this Thesis is twofold. First, we want to develop a solid method for identifying the field aligned currents related to the specific non-conjugate auroral features identified by Reistad et al.  and ...
Measurement of dijet production with a veto on additional central jet activity in pp collisions at ps = 7TeV using the ATLAS detector
A measurement of jet activity in the rapidity interval bounded by a dijet system is presented. Events are vetoed if a jet with transverse momentum greater than 20GeV is found between the two boundary jets. The fraction ...
Femtosecond-pulse-train ionization of Rydberg wave packets
(American Physical Society, 2012-10-09)
We calculate, based on first-order perturbation theory, the total and differential ionization probabilities from a dynamic periodic Rydberg wave packet of a given n-shell exposed to a train of femtosecond laser pulses. ...
Developing calibrated ultrasound equipment for sonoporation research
(The University of Bergen, 2015-03-29)
Sonoporation is the transient formation of pores in cells, due to the application of ultrasound or ultrasound in combination with microbubbles. This increases drug uptake. Nevertheless, the ideal parameters for sonoporation ...
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 ...
Gas Hydrates in Porous Media: CO2 Storage and CH4 Production
(The University of Bergen, 2014-04-25)
Multiphoton ionization and stabilization of helium in superintense xuv fields
(American Physical Society, 2011)
Multiphoton ionization of helium is investigated in the superintense field regime, with particular emphasis on the role of the electron-electron interaction in the ionization and stabilization dynamics. To accomplish this, ...