Browsing Institutt for kjemi by Title
Now showing items 395-414 of 1405
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Evaluation of surfactant templates for one-pot hydrothermal synthesis of hierarchical SAPO-5
(Peer reviewed; Journal article, 2020)Hierarchical SAPO-5 molecular sieves were synthesized with three different mesopore structure-directing agents (meso-SDAs) (cetyltrimethylammonium bromide (CTAB), myristyltrimethylammonium bromide (MTMAB) and [3-(trime ... -
Evaluation of the occurrence and transformation of environmental contaminants in recirculating aquaculture systems
(Master thesis, 2021)Abstract will be available on 2024-07-01 -
Evolution of Carbon Nanofiber-Supported Pt Nanoparticles of Different Particle Sizes: A Molecular Dynamics Study
(Journal article, 2014)Molecular dynamics simulations employing the ReaxFF reactive force field have been carried out to analyze the structural evolution of fishbone-type carbon nanofiber-supported Pt nanoparticles, with particle size ranging ... -
Exact non-Markovian permeability from rare event simulations
(Peer reviewed; Journal article, 2021)Permeation of compounds through membranes is important in biological and engineering processes, e.g., drug delivery through lipid bilayers, anesthetics, or chemical reactor design. Simulations at the atomic scale can provide ... -
Examining Oxidized Mn and Fe as Adsorbents of Hg and Pb in Seawater: An Incubation Experiment
(Master thesis, 2023)Kunnskap om hvordan Hg og Pb sirkulerer i det marine miljøet er viktig fordi de er toksiske for marint liv. Forskning tyder på at redokssensitive elementer som Mn og Fe tar en viktig del i disse syklusene. Mn og Fe danner ... -
Excavated vs novel in situ soil washing as a remediation strategy for sandy soils impacted with per- and polyfluoroalkyl substances from aqueous film forming foams
(Peer reviewed; Journal article, 2021)In situ soil washing at the field scale has not yet been investigated as a remediation strategy for soils impacted by per- and polyfluoroalkyl substances (PFAS). This remediation strategy is a promising low-cost alternative ... -
Exchanging Replicas with Unequal Cost, Infinitely and Permanently
(Peer reviewed; Journal article, 2022)We developed a replica exchange method that is effectively parallelizable even if the computational cost of the Monte Carlo moves in the parallel replicas are considerably different, for instance, because the replicas run ... -
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 ...