Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 2461-2480 of 9927
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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 smitte av grønngylt, Symphodus melops, med V.tapetis - isolatene CECT 4600, LP2 og NRP45
(Master thesis, 2011-08-30)The use of wrasse (Labridae) as cleanerfish in salmonid aquaculture is the only method for removal of salmon lice that does not have any negative impact on the environment. The use of wild-caught wrasse has increased during ... -
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 ... -
Eksperimentell undersøkelse med modellturbin under konstant slep og bølgebelastning
(Master thesis, 2023-06-01)Med økende behov for fornybar energi forventes vindkraft-teknologi å utvikles betydelig i tiden som kommer. Havvind, vindturbiner til havs, er hovedsakelig bunnfaste vindturbiner, men flytende konsepter etableres for fult ... -
Eksperimentelle analyser av forankringsløsninger for Egget®.
(Master thesis, 2023-06-01)Havbruksnæringen i Norge er en voksende industri, som bidrar til å skape betydelige antall arbeidsplasser og inntekter i hele landet. Etterspørselen av oppdrettsfisk er stor både i inn- og utland, og industrien har økt i ... -
Ekspulsjon og gassgenerering ved kunstig modning av intakte kildebergartsprøver
(Master thesis, 2016-06-08)Det er utført fem kunstige modningseksperiment på en skiferbergart for å studere effekten av vann og temperaturgradient på generasjon og utdriving av hydrokarboner fra en intakt bergart. Sammensetningen av generert olje ... -
Ekstraksjon og LtL-omdanning av gran- og bjørkebark
(Master thesis, 2020-07-07)Bark er et restmateriale det finnes store mengder av i skogsbruksindustrien. Mesteparten av barken blir i dag brukt som biobrensel av denne industrien, men det finnes bedre bruksområder for dette restmaterialet. Bark ... -
Ekstremverdianalyse av nedbør og oppdatering av intensitet - varighet - frekvenskurver i Bergen Kommune
(Master thesis, 2016-06-14)Bergen er en by på vestkysten av Norge kjent for høyre årlige nedbørsmengder og mange regndager.På grunn av dette har en i Bergen en lang historie i håndtering av store nedbørsmengder. Dette har en lykkes godt med så langt, ... -
The El Niño effect on Ethiopian summer rainfall
(Journal article; Peer reviewed, 2017)While El Niño is known to cause failure of Kiremt (boreal summer) rainfall in Ethiopia, the mechanisms are not fully understood. Here we use the ECHAM5 Atmospheric General Circulation Model to investigate the physical link ... -
Elastic Curves in Rolling Problems
(Master thesis, 2019-06-22) -
Elastic Full-Waveform Inversion in the Presence of Fracture-Induced Anisotropy
(Master thesis, 2020-06-24)Seismic imaging of the subsurface is essential in both the exploration and production of hydrocarbon reservoirs. Seismic full-waveform modelling and inversion methods can be used to obtain high-resolution images of the ... -
Elastic Grid Resources using Cloud Technologies
(Master thesis, 2014-06-02)A Large Ion Collider Experiment (ALICE) is one of four experiments at the Large Hadron Collider (LHC) at CERN. The detectors in the ALICE experiment produce data at a rate of 4 GB/s after being filtered and compressed ... -
Elastic Imaging and Full Waveform Inversion for Carbon Sequestration
(Master thesis, 2022-06-01)Geological sequestration of carbon dioxide (CO2) is essential to reduce the effects of global warming. However, this requires careful monitoring. Reflection seismics collects data from a large area and is therefore the ... -
Elastic Seismic Imaging and Probabilistic AVO Inversion: Application to CO2 Storage at Sleipner
(Master thesis, 2023-06-01)In order to reduce the effect of global warming, carbon capture and storage (CCS) is considered to be important as it reduces the amount of CO2 in the atmosphere. Geophysical monitoring is essential for safe storage of ... -
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 ... -
Electrical conductivity of fractured media: A computational study of the self-consistent method
(Journal article; Peer reviewed, 2012)Effective medium theory can be used to link conductivity estimation methods with prior knowledge about the distribution of fractures in the investigated geological structure. In the literature, little work has been presented ... -
Electrical Stunning of Edible Crabs
(Research report, 2013)In the project StunCrab, kindly supported by the Norwegian Research Council, SeaSide AS, Hitramat AS and Nofima has successfully developed and implemented electrical stunning of edible crab. The research has shown highest ... -
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 ...