Blar i Institutt for kjemi på tittel
Viser treff 402-421 av 1404
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Excited State Absorption of Uracil in the Gas Phase: Mapping the Main Decay Paths by Different Electronic Structure Methods
(Peer reviewed; Journal article, 2021)We present a computational study of the one-photon and excited-state absorption (ESA) from the two lowest energy excited states of uracil in the gas phase: an nπ* dark state (1n) and the lowest energy bright ππ* state (1π). ... -
Exergy analysis of offshore oil and gas processing
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:155, Doctoral thesis, 2014)Oil and gas extraction have been responsible for 25—28% of the total greenhouse gas emissions in Norway the last 10 years. The part from offshore oil and gas processing, including power production, flaring, and cold ... -
Exergy-based performance indicators for industrial practice
(Journal article, 2018)Key performance indicators (KPIs) are powerful tools that industries can use not only to monitor their activities but also to highlight their unexploited potential. Energy-based KPIs are nowadays mostly used to evaluate ... -
Experiment design and bacterial abundance control extracellular H2O2 concentrations during four series of mesocosm experiments
(Peer reviewed; Journal article, 2020)The extracellular concentration of H2O2 in surface aquatic environments is controlled by a balance between photochemical production and the microbial synthesis of catalase and peroxidase enzymes to remove H2O2 from solution. ... -
Experimental and modeling study of subsea releases of oil and gas. - Oil behavior and effects in a cold or Arctic marine environment as a function of release conditions, oil chemistry and dispersant injection.
(Master thesis, 2015)Abstract With oil exploration going into deeper waters and more extreme environments, more detailed knowledge is needed about the fate of oil in case of a release. This thesis focuses on initial droplet formation, secondary ... -
Experimental and modelling study of subsea oil releases: focusing on small leaks from an aging oilfield off the Norwegian Continental Shelf
(Master thesis, 2019)With advances in exploration and extraction technology, oilfields that would otherwise have been ready for decommission are expected to produce oil for many more years. While beneficial to extract as much resource as ... -
Experimental weathering of microplastic under simulated environmental conditions - Method development and characterization of pristine, photodegraded and mechanically weathered microplastic
(Master thesis, 2018)The aim of this master thesis was to investigate the physico-chemical changes of microplastic (MP) weathered under simulated environmental conditions: floating on the ocean surface and in the intertidal zone. Polyethylene ... -
Exploring analytical pyrolysis; Characterisation of organic binding media in Ethiopian Christian art using pyrolysis gas chromatography mass spectrometry
(Master thesis, 2019)Karakterisering av lipid- og protein-baserte bindemidler ble utforsket ved hjelp av pyrolyse-GC/MS (analytisk pyrolyse). Markører ble identifisert i seks malingsreplikaer av bindemiddelprøver uten pigmenter (linolje, bivoks, ... -
Exploring the effects of approach velocity on depletion force and coalescence in oil-in-water emulsions
(Journal article; Peer reviewed, 2021) -
Exploring the potential for waste heat recovery during metal casting With thermoelectric generators: On-site experiments and mathematical modelling
(Journal article; Peer reviewed, 2016)Thermoelectric power generators are scalable and simple systems for recovering waste-heat disposed by the industry. We combine on-site measurements and a mathematical model to study the potential for power generation with ... -
Exposure assessment of plastics, phthalate plasticizers and their transformation products in diverse bio-based fertilizers
(Peer reviewed; Journal article, 2024)Bio-based fertilizers (BBFs) produced from organic waste have the potential to reduce societal dependence on limited and energy-intensive mineral fertilizers. BBFs, thereby, contribute to a circular economy for fertilizers. ... -
Exposure of juvenile turbot (Scophthalmus maximus) to AgNP-EE2 mixtures: Implications on contaminant bioavailability and plasma steroid hormone levels
(Journal article; Peer reviewed, 2017)Combined exposure to engineered nanoparticles (ENPs) and anthropogenic contaminants can lead to changes in bioavailability, uptake and thus effects of both groups of contaminants. In this study we investigated effects of ... -
Exposures to phthalates and bisphenols in pregnancy and postpartum weight gain in a population-based longitudinal birth cohort
(Peer reviewed; Journal article, 2020)Background Experimental evidence suggests that exposures to phthalates and bisphenols may interfere with processes related to glucose and lipid metabolism, insulin sensitivity, and body weight. Few studies have considered ... -
An Extended CCSD Model Including Triple Excitations for Core-Ionization Energies
(Master thesis, 2018)A model for calculation of core-ionization energies is developed within the equations-of-motion coupled cluster framework with application of the CVS approximation. The model deviates from EOM-CCSD by inclusion of triple ... -
Extracting Dynamical Information from Complex Systems using Advanced Path Sampling Techniques
(Master thesis, 2022)Databaserte simuleringsteknikker spiller en gradvis større rolle som både en erstatning og en utfyllende rolle til eksperimentell forskning, siden disse teknikkene er mindre kostbare og kan gi mikroskopisk dynamisk ... -
Extraction, Isolation and Structure Elucidation of Saponins from Herniaria incana
(Master thesis, 2013)Species of the Herniaria genus have been reported to have several medicinal uses. Two of the species from this genus, Herniaria glabra and Herniaria hirsuta, have both been documented to contain saponins. This can explain ... -
Fabrication of biodegradable hollow microsphere composites made of polybutylene adipate co-terephthalate/polyvinylpyrrolidone for drug delivery and sustained release
(Peer reviewed; Journal article, 2023)Sustained drug release has attracted increasing interest in targeted drug therapy. However, existing methods of drug therapy suffer drug action time, large fluctuations in the effective concentration of the drug, and the ... -
Fabrication of conductive graphene thin films for opto-electronic use
(Master thesis, 2020)En metode for å lage tynnfilmer av grafen deponert på konduktive og ikke-konduktive glass substrater blir presentert her. En omfattende studie av flere deponeringsmetoder som Spin Coating, Doctor Blading, Elektrodeponering, ... -
Fabrication of novel polymeric membranes for CO2 gas separation
(Master thesis, 2019)