Doctoral theses (RealTek)
Unless otherwise stated on the individual theses, the works in this collection are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Recent Submissions
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Scattering and absorption in nano- and microstructured media
(PhD thesis;2020:51, Doctoral thesis, 2020)When electromagnetic radiation interacts with objects of the same wavelength as the radiation, the objects can act as resonators and strong scattering effects appear. The goal of this PhD project has been to understand ... -
Chaos enhanced light trapping in optically thin solar cells
(PhD thesis;2020:3, Doctoral thesis, 2020)Photovoltaics is one of the most important sources of renewable energy. Solar cells with thin absorbing layers can be more cost-effective and leave a smaller environmental footprint than the current commercial technology. ... -
Environmental monitoring with ground-based interferometric radar systems
(PhD Thesis;2019:56, Doctoral thesis, 2019)The need for environmental monitoring is increasing with climate changes and natural resources exploitation, but the monitoring possibilities are also improving with the technological development enabling high spatial and ... -
Extracting movement patterns from geographical trajectory data
(PhD Thesis;2018:96, Doctoral thesis, 2018)Thanks to the recent advent of inexpensive positioning technologies, data about movement of various mobile objects are collected in rapidly growing amounts. Massive repositories of movement data require developing new data ... -
Rapid spectroscopic methods for predicting water-holding capacity in meat
(PhD Thesis;2018:3, Doctoral thesis, 2018)Water-holding capacity (WHC) is one of the most important quality traits in meat, and the main aim of this thesis was to examine the potential for rapid spectroscopic techniques to predict WHC in meat. A secondary aim was ... -
Image analysis in coagulation process control
(PhD thesis;2018:9, Doctoral thesis, 2018)Coagulation-flocculation is a conventional process in drinking water, municipal and industrial wastewater treatment. This stage of wastewater treatment has become popular in Norway due to its superior ability to remove ... -
Flux enhancers in biofilm membrane bioreactors : insight into fouling control
(PhD Thesis;2019:83, Doctoral thesis, 2019)Conventional wastewater treatment technologies are not able to keep up with the population growth and new challenges and restrictions, induced by climate change. Membrane bioreactor (MBR) technology has a high potential ... -
Naturfag for yrkesfagelever : hva teller som kunnskap?
(PhD Thesis;2019:11, Doctoral thesis, 2019)Dette doktorgradsarbeidet søker å utvikle kunnskap og innsikt om undervisnings- og læringsprosesser knyttet til fellesfaget naturfag for yrkesfagelever i videregående skolen i Norge. Den sparsomme forskingen som finnes ... -
Hyperspectral photoluminescence imaging of silicon wafers and solar cells
(PhD Thesis;2018:59, Doctoral thesis, 2018)Hyperspectral photoluminescence imaging is a non-destructive characterization method used to study radiative defects in crystalline silicon wafers and solar cells. It provides both spatial distribution and spectral response ... -
Utvikling av veiledningsmøter i praktisk-pedagogisk utdanning : aksjonsforskning i lærerutdanneres praksis
(Doctoral thesis, 2011)Denne avhandlingen dokumenterer hvordan en lærerutdanningsgruppe forsket i sin felles praksis for å øke kompetansen til å møte lærerstudenters utdanningsbehov. Evalueringer viser til et betydelig relevansproblem i norsk ... -
High-throughput screening of filamentous fungi for single cell oil production by microplate cultivation and FTIR spectroscopy
(PhD Thesis;2018:20, Doctoral thesis, 2018)Microorganisms have been considered for nearly a century for the production of economical and useful oils, but only in the past two or three decades they have been used commercially. These single cell oils contain high ... -
Foundations for BIM-based model checking systems : transforming regulations into computable rules in BIM-based model checking systems
(PhD Thesis;2015:54, Doctoral thesis, 2019-01-08)Building Information Modelling (BIM)-based model checking is maybe the best way to utilize BIM technology and to contribute to the development of new procedures in the architecture, engineering, and construction (AEC) ... -
Gjennomføring av uteundervisning i naturfag ved bruk av et didaktisk undervisningsdesign
(PhD Thesis;2018:74, Doctoral thesis, 2018)I denne avhandlingen utforskes uteundervisning i naturfag på videregående trinn. Uteundervisning kan være et nyttig innslag til naturfagundervisningen. Store deler av eksisterende forskningskunnskap om uteundervisning i ... -
Modular, mobile robots for applications in the agricultural domain
(PhD Thesis;2018:77, Doctoral thesis, 2018)The population of the world is projected to reach almost 10 billion by 2050. To be able to feed everyone, we must increase food production by at least 50%. This must be achieved by a sector already responsible for a quarter ... -
Optimisation of wastewater treatment systems with data mining and process modelling
(PhD Thesis;2018:43, Doctoral thesis, 2018)Wastewater treatment facilities serve an important purpose in public sanitation. Wastewater treatment plants (WWTP) are built at the end of sewerage systems to purify the wastewater before it enters natural water bodies. ... -
Causal factors and health risks associated with faecal contamination and Aedes aegypti infestation in household water storage in Laos and Thailand
(PhD Thesis;2017:89, Doctoral thesis, 2017)The storage of water within the household environment is commonly practiced in many countries in South-east Asia including Laos and Thailand. The practice if not properly managed, can lead to diarrhoea and dengue as a ... -
The environmental life cycle assessment of selected 1st through 3rd generation biofuels within the context of sustainable development
(PhD Thesis;2016:38, Doctoral thesis, 2016)Biofuels, at all stages of technological development, exist all around us; primarily the result of society’s ambition to mitigate climate change associated with the transport sector. Parallel to this development has been ... -
Detecting ideas in online communities : utilizing machine learning and text mining for finding ideas in online communities
(PhD Thesis;2017:18, Doctoral thesis, 2017)Online communities serve as a gathering point for dedicated product users and consumers who discuss all imaginable topics. Scholars have argued that this discussion can lead to new ideas useful for firms. That is, if the ... -
Geodetic observations and modeling of gravity field, sea level, and ocean dynamics in the Norwegian coastal zone
(Phd Thesis;2017:24, Doctoral thesis, 2017)Geodesy can contribute to a quantitative understanding of ocean circulation variability at northern high latitudes, which is crucial to environmental and climate-related studies. Coastal ocean dynamics has gained recent ... -
Improving the anaerobic digestion of lignocelluloses and organic wastes: effects of steam explosion, co-digestion and digestate recirculation.
(PhD Thesis;2013:37, Doctoral thesis, 2013)Biogas production is a sustainable bioenergy process very much in demand nowadays for all the benefits it entails. It does not only allow production of clean energy and thus autonomy from fossil fuels, but also the ...
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