Now showing items 260-279 of 1453

• #### 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 ...
• #### 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 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 ...
• #### 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 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 ...
• #### Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data ﻿

(Peer reviewed; Journal article, 2019)
This paper presents the electron and photon energy calibration obtained with the ATLAS detector using about 36 fb−1 of LHC proton-proton collision data recorded at √ s = 13 TeV in 2015 and 2016. The different calibration ...
• #### Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data ﻿

(Peer reviewed; Journal article, 2014-10-01)
This paper presents the electron and photon energy calibration achieved with the ATLAS detector using about 25 fb −1 of LHC proton–proton collision data taken at centre-of-mass energies of s√=7 and 8 TeV. The reconstruction ...
• #### Electron and photon performance measurements with the ATLAS detector using the 2015-2017 LHC proton-proton collision data ﻿

(Journal article; Peer reviewed, 2019)
This paper describes the reconstruction of electrons and photons with the ATLAS detector, employed for measurements and searches exploiting the complete LHC Run 2 dataset. An improved energy clustering algorithm is introduced, ...
• #### Electroweak boson production in p–Pb and Pb–Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02$ TeV with ALICE ﻿

(Peer reviewed; Journal article, 2017-11)
W and Z bosons are massive weakly-interacting particles, insensitive to the strong interaction. They provide therefore a medium-blind probe of the initial state of the heavy-ion collisions. The final results for the W and ...
• #### Elektronikk for mangekanalsutlesning fra et Posisjonsfølsomt Fotomultiplikatorrør ﻿

(Master thesis, 2001)
• #### Elever sin bruk av forkunnskaper i faglige diskusjoner under praktisk arbeid i naturfag ﻿

(Master thesis, 2016-06-01)
Forskning viser at elever mangler både kunnskaper og forkunnskaper. Forskning har også sett at elever har forkunnskaper, og at disse er nødvendige for videre kunnskapsbygging. For at elever skal kunne drøfte fysikk ...
• #### Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb–Pb collisions at $\sqrt{s_{\rm NN}}= 2.76$ TeV ﻿

(Peer reviewed; Journal article, 2016-09)
The elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity $|y| < 0.7$ is measured in Pb–Pb collisions at $\sqrt{s_{\rm NN}}= 2.76$ TeV with ALICE at the LHC. The particle azimuthal distribution ...
• #### Elliptic flow of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 2.76 TeV ﻿

(Peer reviewed; Journal article, 2015-06-29)
The elliptic flow coefficient $v_{2}$ of identified particles in Pb--Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV was measured with the ALICE detector at the LHC. The results were obtained with the Scalar ...