Browsing Department of Physics and Technology by Title
Now showing items 376-395 of 2132
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Effect of ICME-Driven Storms on Field-Aligned and Ionospheric Currents From AMPERE and SuperMAG
(Journal article; Peer reviewed, 2022)This study investigates the field-aligned currents (FACs) and ionospheric equivalent currents for interplanetary coronal mass ejection (ICME)-driven storms by considering 45 events with a minimum Dst ≤ −50 nT. The FACs and ... -
Effect of Implementing Three-Phase Flow Characteristics and Capillary Pressure in Simulation of Immiscible WAG
(Journal article, 2008-04-30)The effect of including a three-phase representation of the flow parameters and capillary pressure has been investigated using a black oil simulator. The simulation approaches include the complexity of three-phase flow, ... -
Effect of Mineral Composition on Transverse Relaxation Time Distributions and MR Imaging of Tight Rocks from Offshore Ireland
(Journal article; Peer reviewed, 2020)In this paper, we investigate the effect of magnetic field strength on the transverse relaxation time constant (T2) in six distinct core plugs from four different rock types (three sandstones, one basalt, one volcanic tuff ... -
Effect of relative permeability hysteresis on reservoir simulation of underground hydrogen storage in an offshore aquifer
(Journal article; Peer reviewed, 2023)Underground hydrogen storage (UHS) in porous media is proposed to balance seasonal fluctuations between demand and supply in an emerging hydrogen economy. Despite increasing focus on the topic worldwide, the understanding ... -
The Effect of Solid Inhibitors on Hydrogen-air Combustion
(Journal article; Peer reviewed, 2022)The use of hydrogen as an energy carrier is a promising solution for enabling the transition towards increased use of renewable energy sources in the global energy mix. However, hydrogen-air mixtures are highly reactive, ... -
Effect of ultraviolet radiation on phytoplankton photosynthesis measured using fiber-optical oxygen sensors.
(Master thesis, 2009-12-08)Since the discovery of the Antarctic ozone hole' many studies have been conducted to determine the effect of UV radiation on photosynthetic rate of phytoplankton. It is accepted now that increased levels of UV radiation ... -
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 ...