Institutt for kjemi: Recent submissions
Now showing items 141-160 of 1395
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A volume-averaged model for acoustic streaming induced by focused ultrasound in soft porous media
(Peer reviewed; Journal article, 2023)Equations describing acoustic streaming in soft, porous media driven by focused ultrasound are derived based on the assumption that acoustic waves pass through the porous material as if it were homogeneous. From these ... -
Soil Metabolome Impacts the Formation of the Eco-corona and Adsorption Processes on Microplastic Surfaces
(Peer reviewed; Journal article, 2023)The eco-corona on microplastics refers to the initial layer of biomolecular compounds adsorbed onto the surface after environmental exposure. The formation and composition of the eco-corona in soils have attracted relatively ... -
Thermal modeling of the respiratory turbinates in arctic and subtropical seals
(Peer reviewed; Journal article, 2023)Mammals possess complex structures in their nasal cavities known as respiratory turbinate bones, which help the animal to conserve body heat and water during respiratory gas exchange. We considered the function of the ... -
Analysis, occurrence and removal efficiencies of organophosphate flame retardants (OPFRs) in sludge undergoing anaerobic digestion followed by diverse thermal treatments
(Peer reviewed; Journal article, 2023)Organophosphate flame retardants (OPFRs) are a complex group of contaminants to deal with in sewage sludge, as currently there is a lack of robust analytical methods to measure them and management strategies to remove them. ... -
Towards improved characterization of the fate and impact of hydraulic fracturing chemicals to better secure regional water quality
(Peer reviewed; Journal article, 2022)Hydraulic fracturing (HF) of shale and other permeable rock formations to extract gas and oil is a water-intensive process that returns a significant amount of flowback and produced water (FPW). Due to the complex chemical ... -
Production and long-term bioavailability of organic carbon from cultivated Saccharina latissima
(Master thesis, 2023)Som en av de mest betydningsfulle primærprodusentene i havet, frigjør tang og tare betydelige mengder organisk karbon under vekst og nedbrytning. Likevel er det lite kunnskap om forholdet mellom de biologiske og kjemiske ... -
Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
(Peer reviewed; Journal article, 2023)The Southern Ocean is a major sink of anthropogenic CO2 and an important foraging area for top trophic level consumers. However, iron limitation sets an upper limit to primary productivity. Here we report on a considerably ... -
Granulation of oil shale ash with sodium alginate for the removal of phenols from shale oil wastewater
(Peer reviewed; Journal article, 2018)Granulated oil shale ash is used for removal of phenols from shale oil waste water -
Ultra-Short-Chain PFASs in the Sources of German Drinking Water: Prevalent, Overlooked, Difficult to Remove, and Unregulated
(Peer reviewed; Journal article, 2022)Per- and polyfluoroalkyl substances (PFASs) have been a focal point of environmental chemistry and chemical regulation in recent years, culminating in a shift from individual PFAS regulation toward a PFAS group regulatory ... -
Synthesis and Pharmacological Development of Pyrrolopyrimidines and Purines as Inhibitors of the Colony Stimulating Factor 1 Receptor Tyrosine Kinase
(Doctoral theses at NTNU;2023:166, Doctoral thesis, 2023)Protein kinases regulate the function of virtually all fundamental cellular processes and have thus become important drug targets for modulating abnormal cellular behavior in a variety of disease states. However, the ... -
Polydimethylsiloxane (PDMS) based graft-copolymers for use in coatings having ice-release properties
(Master thesis, 2023)Atmosfærisk isformasjon på vindmølleblader, høyspentlinjer, skip og lignende er et stort problem i de polare delene av kloden i vintersesongene. Hvis isformasjonen kan sankes ned eller kraften isen festes med blir redusert, ... -
Avoiding the Next Silent Spring: Our Chemical Past, Present, and Future
(Peer reviewed; Journal article, 2023)Rachel Carson’s Silent Spring, (1) published just more than 60 years ago, outlined how the indiscriminate use of dichlorodiphenyltrichloroethane (DDT), a potent, environmentally persistent insecticide, was damaging the ... -
Assessing Root Development and Porosity in Ameliorated and Revegetated Bauxite Residue from Hydro-Alunorte, Brazil, through Digital Analysis of X-ray Micro Computed Tomography Images
(Master thesis, 2023)Bauksittrester (BR) er en svært alkalisk, saltholdig og sodisk rest av aluminaraffinerier med lite gjenbrukspotensial og er hovedsakelig tørrstablet i landdeponeringsområder. Erosjon av BR forårsaket av vind og regn utgjør ... -
Synthesis and Characterization of Small Molecule Semiconductive Materials for Applications in Organic Photovoltaic Devices
(Master thesis, 2023)Nye halvedende små molykyler har blitt syntesert og karakterisert for potensiell bruk til «bulk heterojunction» organiske solceller (BHJ OPVs). Nafthalendiimid ble valgt for bruk i et akseptor-type molekyl, og designet i ... -
Thickness Mediated Morphology Evolution in Sub-10-nm Metal Film Deposition: Implications for Non-destructive Testing
(Peer reviewed; Journal article, 2023)Thickness in sub-10-nm metal film deposition is a seldomly explored parameter that can influence not only the film mechanical properties but also the surface functional characteristics. In this study, we designed bilayer ... -
Nickel incorporated silica aerogels for the catalytic hydration of carbon dioxide.
(Master thesis, 2023)Denne oppgaven investigerer potensialet for å inkorporere nikkel i en silika aerogel atomisk og om en slik katalysator vil være aktiv for hydrering av karbondioksid. For å oppnå dette ble det brukt en optimalisert medforløper ... -
Comparing PFAS concentrations in non-functional recycled and post-consumer textiles: Implications for a toxic-free circular economy
(Master thesis, 2023)Tilstedeværelse av per- og polyfluoralkylstoffer (PFAS) i tekstiler regnes som en hinder for å oppnå materialsykluser fri for miljøgifter under ønsket om å øke resirkuleringsraten for tektiler under EU’s handlingsplan for ... -
Real-time coupled-cluster approaches for electronic multiphoton processes in atoms and molecules
(Doctoral theses at NTNU;2023:227, Doctoral thesis, 2023)This thesis explores time-dependent coupled cluster (TDCC) and time-dependent equation-of-motion coupled cluster (TD-EOM-CC) methods in quantum chemistry. As part of the thesis work, these methods were integrated into the ... -
The decomposition and emission factors of a wide range of PFAS in diverse, contaminated organic waste fractions undergoing dry pyrolysis
(Peer reviewed; Journal article, 2023)Current treatment options for organic waste contaminated with per- and polyfluoroalkyl substances (PFAS) are generally limited to incineration, composting or landfilling, all resulting in emissions. Dry pyrolysis is a ... -
Global oppvarmings påvirkning på transportmekanismer i atmosfæren av PCB og kvikksølv til Arktis
(Bachelor thesis, 2023)Global oppvarming fører til økte temperaturer på kloden, spesielt i Arktis. Det blir i tillegg mer ekstremvær, og enkelte plasser kan det oppleves at det blir kaldere. Varmere temperaturer fører til at flyktige PBTer lettere ...