Blar i Department of Physics and Technology på tittel
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Effect of Water Mist Suppression System in Engine Room: Case Study of Fire in The Cruise Liner MS Nordlys
(Master thesis, 2014-06-02)In the 1980s ozone layer depleting was a major concern for the environmentalists. Halon was used as a fire extinguishing agent until it was banned in the early 1990's. The industry was therefore forced to find other solutions ... -
Effective screening of medium-assisted van der Waals interactions between embedded particles
(Journal article; Peer reviewed, 2021)The effect of an implicit medium on dispersive interactions of particle pairs is discussed, and simple expressions for the correction relative to vacuum are derived. We show that a single point Gauss quadrature leads to ... -
Effects of an Arctic under-ice bloom on solar radiant heating of the water column
(Peer reviewed; Journal article, 2017-01)The deposition of solar energy in the upper Arctic Ocean depends, among other things, on the composition of the water column. During the N-ICE2015 expedition, a drift in the Arctic pack ice north of Svalbard, an under-ice ... -
Effects of dead time losses on terrestrial gamma ray flash measurements with the Burst and Transient Source Experiment
(Peer reviewed; Journal article, 2010-05-05) -
Effects of enhanced downwelling of NOx on Antarctic upper-stratospheric ozone in the 21st century
(Journal article; Peer reviewed, 2021)Ozone is expected to fully recover from the chlorofluorocarbon (CFC) era by the end of the 21st century. Furthermore, because of anthropogenic climate change, a cooler stratosphere decelerates ozone loss reactions and is ... -
Effects of methane hydrates on two-phase relative permeability in sandstone: Numerical simulation of laboratory experiments
(Journal article; Peer reviewed, 2022)To identify the challenges and limitations in measuring and modelling gas relative permeability in hydrate bearing sandstone, we simulate a series of experiments. Experimental and numerical results are used to examine the ... -
Effects of motion correction, sampling rate and parametric modelling in dynamic contrast enhanced MRI of the temporomandibular joint in children affected with juvenile idiopathic arthritis
(Journal article; Peer reviewed, 2021)The temporomandibular joint (TMJ) is typically involved in 45–87% of children with Juvenile Idiopathic Arthritis (JIA). Accurate diagnosis of JIA is difficult as various clinical tests, including MRI, disagree. The purpose ... -
Effects of Multi-Shell Free Water Correction on Glioma Characterization
(Journal article; Peer reviewed, 2021)Diffusion MRI is a useful tool to investigate the microstructure of brain tumors. However, the presence of fast diffusing isotropic signals originating from non-restricted edematous fluids, within and surrounding tumors, ... -
Effects of nonlinear sound propagation in fisheries research
(Doctoral thesis, 2007-03-30) -
Effects of salinity on hydrate stability and implications for storage of CO2 in natural gas hydrate reservoirs
(Peer reviewed; Journal article, 2009-02)The win-win situation of CO2 storage in natural gas hydrate reservoirs is attractive for several reasons in addition to the associated natural gas production. Since both pure CO2 and pure methane form structure I hydrate ... -
Effects of the guide field on electron distribution functions in the diffusion region of asymmetric reconnection
(Peer reviewed; Journal article, 2019)Crescent electron distribution functions in the electron diffusion region in asymmetric reconnection with a guide field (strength less than 50% of the upstream magnetic field) are investigated by theory and fully kinetic ... -
Efficacy and User Experience of a Novel X-Ray Shield on Operator Radiation Exposure during Cardiac Catheterization: A Randomized Controlled Trial
(Journal article; Peer reviewed, 2023)BACKGROUND: Radiation shielding is mandatory during cardiac catheterization, but there is a need to improve efficacy and ease of use. METHODS: The aim of the study was to assess the shielding effect and user feedback ... -
Efficient Monte Carlo simulation reveals significant multiple scattering errors in underwater angular scattering measurements
(Journal article; Peer reviewed, 2022)Multiple scattering can severely affect the accuracy of optical instrumentation. Variance reduction methods have been implemented to improve a Monte Carlo model developed to simulate volume scattering functions measured ... -
Ein numerisk studie av ammoniakkspreiing i eit urbant område ved bruk av simuleringsverktøyet FLACS
(Master thesis, 2018-06-20)Ammoniakk er eit giftig stoff som kan føre til skade på menneske og dyr som vert utsett for det. Då store mengder ammoniakk vert frakta og lagra i urbane områder som væske under trykk, vil det ugjere ei stor fare for ... -
Eksperimentell og numerisk sammenligning av ikke-lineære fokuserte bølger
(Master thesis, 2023-06-01)For konstruksjoner som brukes i off-shore-miljø, utføres tester i bølgetanker hvor det blir generert en havtilstand for å representere ikke-lineære bølgelaster. Et alternativ til slike tester er numeriske simuleringer. ... -
Eksperimentell studie av vannbasert EOR i karbonatreservoarer
(Master thesis, 2009-11-20)Ulike metoder for økt oljeutvinning (EOR, eng. Enhanced Oil Recovery) har blitt utviklet og anvendt for å forbedre effektiviteten av konvensjonell vannflømming. Hensikten med EOR er å bedre den mikroskopiske fortrengning ... -
Elastic wave velocities and attenuation under methane hydrate growth in Bentheim sandstone - Measurements and modelling
(Doctoral thesis, 2018-12-18)Due to the potential for using methane hydrates as an energy source, localizing, monitoring and describing hydrate deposit areas are of interest. This has previously been attempted by using acoustic methods and thus ... -
Electric spark energy required for igniting transient clouds of lycopodium dust in air using inherent dust cloud triggering of spark discharge. Influences of selected experimental parameters.
(Master thesis, 2016-12-01)The catastrophic outcome of accidental explosions to humans and property has caused an increased need for new knowledge in order to prevent and mitigate the effects of such events. Amongst other substances, a wide range ... -
Electric spark ignition of sensitive dust clouds in the sub 1 mJ range
(Doctoral thesis, 2006-05-30)This thesis describes a study of the minimum ignition energy (MIE) of easily ignitable dust clouds in air. The MIE is a central parameter when assessing the risk involved when handling combustible dusts. Current standard ... -
Electrojet Estimates From Mesospheric Magnetic Field Measurements
(Journal article; Peer reviewed, 2021)The auroral electrojet is traditionally measured remotely with magnetometers on ground or in low Earth orbit (LEO). The sparse distribution of measurements, combined with a vertical distance of some 100 km to ground and ...