Browsing Department of Chemistry by Title
Now showing items 176-195 of 572
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Enhanced Oil Recovery by Combined Low Salinity Water and Polymer Flooding
(Doctoral thesis, 2014-06-19)World energy demand is continuously increasing as the developed and developing countries consume more energy to keep their growing industries running. Significant portion of the energy demand is supplied by fossil energies, ... -
Environmental Remediation: Removal of polycyclic aromatic hydrocarbons Dissertation
(Doctoral thesis, 2012-08-17)Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous persistent semi-volatile organic compounds. They are contaminants that are resistant to degradation and can remain in the environment for long periods due to their ... -
An environmentally benign and high-rate Appel type reaction
(Journal article; Peer reviewed, 2022)A high rate, selective, and productive Appel type reaction was developed. The method allows for ipso-substitution of the alcoholic hydroxy group with halogens ∈ [Cl, Br, I]. The method demands mild reaction conditions that ... -
Environmentally Friendly Synthesis of Biobased Plastic from Lignin Derived Building Blocks to Replace Poly(ethylene Terephthalate) (PET)
(Master thesis, 2017-12-20)The resources of petroleum are decreasing, and new ways have to be found of producing all the energy and chemicals that today are based on petroleum. An alternative to petroleum is renewable biomass, where lignocellulosic ... -
Enzymes for Enhanced Oil Recovery (EOR)
(Doctoral thesis, 2011-06-30)Primary oil recovery by reservoir pressure depletion and secondary oil recovery by waterflooding usually result in poor displacement efficiency. As a consequence there is always some trapped oil remaining in oil reservoirs. ... -
«Er det nokon som har tolka dette annleis?» - Ein kvalitativ studie av samtalar mellom lærar og elevar under felles tilarbeiding av fagstoff
(Master thesis, 2021-06-15)Formålet med denne masteroppgåva har vore å få eit innsyn i kva som kjenneteikner samtalar mellom lærarar og elevar i klasserommet. Datamaterialet som utgjer grunnlaget for analysen er samla inn frå tre undervisningstimar ... -
Ethylene-Triggered Formation of Ruthenium Alkylidene from Decomposed Catalyst
(Journal article; Peer reviewed, 2020)Ethylene is known to readily decompose ruthenium-based olefin metathesis catalysts, such as Grubbs second-generation catalyst (GII), by forming the unsubstituted ruthenacyclobutane (Ru-2) that may undergo a 1,2-H shift and ... -
Eukaryote-specific assembly factor DEAP2 mediates an early step of photosystem II assembly in Arabidopsis
(Journal article; Peer reviewed, 2023)The initial step of oxygenic photosynthesis is the thermodynamically challenging extraction of electrons from water and the release of molecular oxygen. This light-driven process, which is the basis for most life on Earth, ... -
Evaluation of analytical strategies for quantifying selected polyphenols in feed production: from ingredient to fish.
(Master thesis, 2023-09-30)Polyphenols are an extensive group of compounds with important antioxidant properties, whose industrial use has shown a continuous increase in the last years. Their utilization in aquaculture is becoming progressively ... -
Evaluation of the cytotoxic and antimicrobial potential of epiphytic biomass obtained from Laminaria hyperborea biorefinery side-streams
(Journal article; Peer reviewed, 2024)Harvested Laminaria hyperborea contributes to approximately 3.3 million tonnes of epiphytes discarded as waste despite containing organisms such as red algae and bryozoa, known to produce a range of high-value and bioactive ... -
Experimental Studies of N2 - and CO2-Foam Properties in Relation to Enhanced Oil Recovery Applications
(Doctoral thesis, 2015-06-01)Foams can do more than soften a beard or extinguish a fire. Foam also offers the oil industry better mobility control. The presence of a foaming agent in porous rocks can reduce the mobility of gas and water, stabilize the ... -
An experimental study of mixed CO2-CH4 hydrate phase equilibria and the CO2-CH4 exchange reaction
(Master thesis, 2015-06-01)Large amounts of CH4 are trapped in naturally occurring gas hydrate deposits. Extensive research on these species has generated a considerable interest in developing technologically and economically viable recovery methods ... -
Exploration of non-spinning ^1H NMR Spectroscopy as a Tool for Determination and Monitoring of Gas Hydrate Formation and Dissociation Processes
(Master thesis, 2015-11-02)Natural gas hydrates provide both a flow- assurance hazard and a potential fossil fuel source. In order to face the challenges presented by these scenarios, a greater understanding of the properties of hydrates in a range ... -
Exploratory multivariate analysis of the effect of fatty fish consumption and medicinal use on heart rate and heart rate variability data
(Peer reviewed; Journal article, 2015-02-17)The overall aim of the present study was to explore the relationship between medicinal use and fatty fish consumption on heart rate variability (HRV) and heart rate (HR) in a group of forensic inpatients on a variety of ... -
Exploring chemistry teachers' perspectives on questioning and providing a new way of analyzing teacher questions in science classrooms
(Doctoral thesis, 2018-02-12)The goals of this dissertation were, to examine how chemistry teachers conceptualize the nature of questions used in teaching, as well as how their understanding influences their questioning practice, and to explore a new ... -
Exploring FabF as a new target for antibiotic-resistant Pseudomonas aeruginosa: Assay development, fragment screening and hit optimization
(Doctoral thesis, 2024-12-16)Oppdagelsen av antibiotika er utvilsomt blant de største triumfene innen moderne medisin, og har i stor grad forbedret sykdomsforløpet ved de fleste vanlige bakterieinfeksjoner. I dag har triumffanfarene blitt modulert til ... -
Exploring gas adsorption properties and phase transitions of two M(tppo) metal-organic frameworks
(Master thesis, 2024-06-03)Separation and storage of gases is of interest to the global society in order to minimize emission of greenhouse gases and utilize these gases as resources in their pure form in the chemical industry. This work considers ... -
Exploring hydrothermal liquefaction (HTL) of digested sewage sludge (DSS) at 5.3 L and 0.025 L bench scale using experimental design
(Journal article; Peer reviewed, 2023)A common perspective within the prospect of a greener future is utilising our waste materials. One waste material of which the world has abundant resources, and where we will keep having resources, is sewage sludge. This ... -
Exploring the Fermentation Parameters of Kombucha on Caffeine and pH Using Experimental Design and the Feasibility of Raman Spectroscopy in Kombucha Analysis
(Master thesis, 2023-09-30)Kombucha shows promising growth potential due to its claimed health benefits. Through an experimental design, the impact of the fermentation parameters on color and appearance, pH and caffeine content was further understood ... -
Exploring the function of mammalian Adenosine Deaminase 2, a novel anti-inflammatory glycoprotein of the macrophage lysosome
(Master thesis, 2024-06-03)Deficiency of Adenosine Deaminase 2 (DADA2) is an autosomal recessive autoinflammatory disease currently standing without sufficient treatment. The main reason for the lack of targeted therapy is the lack of understanding ...