Now showing items 478-497 of 727

• #### Observation of an excited B[± over c] meson state with the ATLAS detector ﻿

(American Physical Society, 2014-11-21)
A search for excited states of the B[± over c] meson is performed using 4.9  fb[superscript −1] of 7 TeV and 19.2  fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is ...
Journal article
• #### Observation of intrinsically bright terrestrial gamma ray flashes from the Mediterranean basin ﻿

(AGU Publications, 2015-12-14)
We present three terrestrial gamma ray flashes (TGFs) observed over the Mediterranean basin by the Reuven Ramaty High Energy Solar Spectroscope Imager (RHESSI) satellite. Since the occurrence of these events in the ...
Journal article
• #### Observations of field aligned currents in the plasma sheet. Two kinds of field aligned currents generated during magnetotail convection ﻿

(The University of Bergen, 2009-05-08)
Doctoral thesis
• #### Observations of planetary waves in the mesosphere-lower thermosphere during stratospheric warming events ﻿

(Copernicus PublicationsEuropean Geosciences Union, 2015-05-04)
This study investigates the effect of stratospheric sudden warmings (SSWs) on planetary wave (PW) activity in the mesosphere–lower thermosphere (MLT). PW activity near 95 km is derived from meteor wind data using a chain ...
Journal article
• #### Oh no, it’s raining! A study of how information in online weather reports is interpreted, integrated, and used in everyday decision-making by laypeople ﻿

(The University of Bergen, 2016-11-18)
Different people in different occupations depend on weather forecasts to plan their work and recreational schedules. People with no expertise in meteorology frequently interpret weather forecasts and uncertainty information. ...
Doctoral thesis
• #### On automatic data processing and well-test analysis in real-time reservoir management applications ﻿

(The University of Bergen, 2011-06-30)
Doctoral thesis
• #### On the composite response of the MLT to major sudden stratospheric warming events with elevated stratopause ﻿

(Wiley, 2016-05)
Based on a climate-chemistry model (constrained by reanalyses below ~50 km), the zonal-mean composite response of the mesosphere and lower thermosphere (MLT) to major sudden stratospheric warming events with elevated ...
Journal article
• #### On the contribution of thermal excitation to the total 630.0 nm emissions in the northern cusp ionosphere ﻿

(American Geophysical Union, 2017-01)
Direct impact excitation by precipitating electrons is believed to be the main source of 630.0 nm emissions in the cusp ionosphere. However, this paper investigates a different source, 630.0 emissions caused by thermally ...
Journal article
• #### On-line X-ray fluorescence analysis applied to industrial processes and environmental monitoring ﻿

(The University of Bergen, 2000)
Abstract X-ray stimulated fluorescence analysis is a powerful and widely used tool for determining the concentration of chemical species in materials. Presently, this is done by taking and preparing samples for off-line ...
Master thesis
• #### One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at $\sqrt{s_{\rm {NN}}}$ =2.76 TeV ﻿

(American Physical Society, 2015-11)
The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb ...
Journal article
• #### 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 ...
Doctoral thesis
• #### Onset of Spontaneous Imbibition ﻿

(The University of Bergen, 2017-06-22)
The spontaneous imbibition process in porous media is an important recovery mechanism and is governed by capillary forces that arise when two immiscible fluids are present in the pore space. This thesis presents new ...
Master thesis
• #### Optical spectroscopy for tissue diagnostics and treatment control ﻿

(The University of Bergen, 2006-06-28)
Biomedical Optics as an interdisciplinary field of science has been developed during many years and is experiencing tremendous growth, to cover a wide range of optical techniques and methods, utilized for medical therapeutic ...
Doctoral thesis
• #### Optical velocity meter based on Ramsey oscillations in a double-grating setup ﻿

(American Physical Society, 2014-04)
We propose a method for measuring velocities of atoms or molecules in a gas phase based on time-resolved laser experiments. Two intensity gratings of electromagnetic field with variable time delay τ are created by interfering ...
Journal article
• #### Optisk goniometer for optimalisering av retningsbestemt solenergi ﻿

(The University of Bergen, 2017-06-13)
Det er et økende fokus på fornybar energi og bærekraftig matproduksjon, det vil derfor være nyttig med teknologi som kan føre til økt effektivitet i produksjon av dette. Utnyttelse av solenergi er et felt som er mye brukt, ...
Master thesis
• #### Particle Production in p+p and d+Au Collisions at √sNN = 200 GeV ﻿

(The University of Bergen, 2007-12-14)
Doctoral thesis
• #### Particle-yield modification in jet-like azimuthal dihadron correlations in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV ﻿

(American Physical Society, 2012-03)
The yield of charged particles associated with high-pT trigger particles (8 < pT < 15 GeV/c) is measured with the ALICE detector in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV relative to proton-proton collisions at the ...
Journal article
• #### Particle–wave discrimination in Poisson spot experiments ﻿

(IOP Publishing Ltd, 2011)
Matter–wave interferometry has been used extensively over the last few years to demonstrate the quantum-mechanical wave nature of increasingly larger and more massive particles. We have recently suggested the use of ...
Peer reviewedJournal article
• #### PEPT: an invaluable tool for 3-D particle tracking and CFD simulation verification in hydrocyclone studies ﻿

(EDP Sciences, 2013)
Particle tracks in a hydrocyclone generated both experimentally by positron emission particle tracking (PEPT) and numerically with Eulerian-Lagranian CFD have been studied and compared. A hydrocyclone with a cylinder-on-cone ...
Journal article
• #### Performance Evaluation of a Small-Animal PET/CT System ﻿

(The University of Bergen, 2014-06-02)
This master project is the first vendor-independent performance evaluation of the new nanoScan PET/CT system at the University of Bergen. A comprehensive performance evaluation of a novel scanner is very important, ...
Master thesis