Now showing items 580-599 of 1453

• #### Magnetic coordinate systems ﻿

(Peer reviewed; Journal article, 2017-03)
Geospace phenomena such as the aurora, plasma motion, ionospheric currents and associated magnetic field disturbances are highly organized by Earth’s main magnetic field. This is due to the fact that the charged particles ...
• #### Magnetic Effects of Plasma Pressure Gradients in the Upper F Region ﻿

(Peer reviewed; Journal article, 2019)
The Swarm satellites fly at altitudes that at polar latitudes are generally assumed to only contain currents that are aligned with the local magnetic field. Therefore, disturbances along the main field direction are mainly ...
• #### Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation ﻿

(Peer reviewed; Journal article, 2019)
Magnetic reconnection in a quasi‐parallel bow shock is investigated with two‐dimensional local particle‐in‐cell simulations. In the shock transition and downstream regions, large amplitude magnetic fluctuations exist, and ...
• #### Magnetic Reconnection in Three Dimensions: Modeling and Analysis of Electromagnetic Drift Waves in the Adjacent Current Sheet ﻿

(Journal article; Peer reviewed, 2019)
We present a model of electromagnetic drift waves in the current sheet adjacent to magnetic reconnection at the subsolar magnetopause. These drift waves are potentially important in governing 3‐D structure of subsolar ...
• #### Magnetic Resonance Imaging of Hydrate Phase Transitions in Sediments ﻿

(Master thesis, 2017-12-21)
Natural gas hydrates, simplified described as gas compressed in ice, are a substance existing in large quantities around the world. Their existence requires elevated pressures and low temperature. They are therefore found ...
• #### Magnetic Resonance Imaging of Methane Hydrate Formation and Dissociation in Sandstone with Dual Water Saturation ﻿

(Peer reviewed; Journal article, 2019-08-22)
This paper reports formation and dissociation patterns of methane hydrate in sandstone. Magnetic resonance imaging spatially resolved hydrate growth patterns and liberation of water during dissociation. A stacked core ...
• #### Magnetospheric response and reconfiguration times following IMF By reversals ﻿

(Peer reviewed; Journal article, 2017-01)
The interaction between the interplanetary magnetic field (IMF) and the geomagnetic field at the dayside magnetopause leads to transfer of momentum and energy which changes the magnetospheric configuration, but only after ...
• #### Manipulating dynamical Rabi-splitting with two-color laser pulses ﻿

(Peer reviewed; Journal article, 2019)
We theoretically investigate strong-field ionization of hydrogen atoms by orthogonally polarized two-color (OTC) laser pulses consisting of a fundamental field that is resonant with the 1s − 2p transition and its second ...
• #### Mapping Gas Hydrate Dynamics in Porous Media : Experimental Studies of Gas Hydrates as a Source of CH4 and Sink for CO2 ﻿

(Doctoral thesis, 2020-03-20)
The world needs more energy and the energy has to be more sustainable with respect to carbon dioxide (CO2) emissions. This is the backdrop for studying the diverse applications of gas hydrates in nature. The ice-like ...
• #### Marine seismics with a pulsed combustion source and Pseudo Noise codes ﻿

(Peer reviewed; Journal article, 2007-03)
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 ...
• #### Mass Ordering of Third Generation Sleptons in a Trilinear-Augmented Gaugino Mediated Supersymmetry-Breaking Scenario ﻿

(Master thesis, 2017-12-21)
In this thesis, we are exploring the particle spectrum of trilinear-augmented gaugino mediation. In particular, we calculate the masses of the stau and the tau sneutrino in a section of the parameter space in which one is ...
• #### Mass‐loading the Earth's dayside magnetopause boundary layer and its effect on magnetic reconnection ﻿

(Peer reviewed; Journal article, 2019)
When the interplanetary magnetic field is northward for a period of time, O+ from the high‐latitude ionosphere escapes along reconnected magnetic field lines into the dayside magnetopause boundary layer. Dual‐lobe reconnection ...
• #### Måling av akustisk spreiing fra makrellbein ﻿

(Master thesis, 2006-06)
• #### Måling av ekvivalent åpningsvinkel for et 38 kHz fiskeri ekkolodd. Kalibrering av ekkolodd ved bruk av flere svingere ﻿

(Master thesis, 2020-08-09)
• #### Måling av forholdet mellom ladning og masse for elektronet - Utførelse og laboratorieveiledning ﻿

(Master thesis, 2010-05-31)
Hensikten med denne masteroppgaven er å lage en laboratorieveiledning til en øvelse i et fag for laveregradstudenter ved Universitetet i Bergen. Foruten å finne en interessant fysisk verdi er hovedhensikten at studentene ...
• #### Measurement of $J/\psi$ production as a function of event multiplicity in pp collisions at $\sqrt{s} = 13\,\mathrm{TeV}$ with ALICE ﻿

(Peer reviewed; Journal article, 2017-11)
The availability at the LHC of the largest collision energy in pp collisions allows a significant advance in the measurement of $J/\psi$ production as function of event multiplicity. The interesting relative increase ...
• #### Measurement of $W$ boson angular distributions in events with high transverse momentum jets at $\sqrt{s}=$ 8 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2017-02)
The $W$ boson angular distribution in events with high transverse momentum jets is measured using data collected by the ATLAS experiment from proton--proton collisions at a centre-of-mass energy $\sqrt{s}=$ 8 TeV at ...
• #### Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at √sNN=5.02 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2019)
Studies of the fragmentation of jets into charged particles in heavy-ion collisions can provide information about the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon ...
• #### Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in pp collisions at √s=13  TeV with the ATLAS detector ﻿

(Journal article; Peer reviewed, 2020)
The elliptic flow of muons from the decay of charm and bottom hadrons is measured in pp collisions at √s=13  TeV using a data sample with an integrated luminosity of 150  pb−1 recorded by the ATLAS detector at the LHC. The ...
• #### Measurement of azimuthal correlations of D mesons and charged particles in pp collisions at $\sqrt{s}=7$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV ﻿

(Peer reviewed; Journal article, 2017-04)
The azimuthal correlations of D mesons and charged particles were measured with the ALICE detector in pp collisions at $\sqrt{s}=7$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV at the Large Hadron Collider. ...