Blar i Institutt for kjemi på tittel
Viser treff 177-196 av 1352
-
Characterization of extruded Aluminium
(Master thesis, 2011)A new method of continuous extrusion of aluminium, utilizing a screw tocompact scrap material into an extrusion prole, is being developed. Suchdirect recycling shows great advantages compared to traditional extrusion,especially ... -
Characterization of Gold and Copper Species in Nanoporous Materials
(Master thesis, 2012)Global warming and energy production from other sources than fossil fuels have the last years attracted more and more attention. Catalysis plays an important role in controlling the emission of greenhouse gases and other ... -
Characterization of ion selective membranes for application in reverse electrodialysis systems: Concentration dependency of the apparent transport number
(Master thesis, 2014)Revers elektrodialyse (RED) er en fornybar, ikke-forurensende måte å generereelektrisitet på ved å blande vann med forskjellige saltkonsentrasjoner, e.g.elvevann og sjøvann. RED er avhengig av ioneselektive membraner. ... -
Characterization of products from conversion of heavy oils
(Master thesis, 2009) -
Characterizing changes of dissolved organic matter composition with the use of distinct feeds in recirculating aquaculture systems via high-resolution mass spectrometry
(Peer reviewed; Journal article, 2020)Recirculating aquaculture systems (RAS) are a new alternative to traditional aquaculture approaches, allowing full control over the fish production conditions, while reducing the water demand. The reduction of water exchange ... -
Chemical Analysis and Anthelmintic Activity Against Teladorsagia Circumcincta of Nordic Bark Extracts In vitro
(Peer reviewed; Journal article, 2021)Helminth parasitic infections are common in small ruminants in Norway; infection is usually treated with anthelmintic drugs, but anthelmintic resistance is an increasing problem. It is necessary to identify strategies to ... -
Chemical and Spectroscopic Studies of Carotenoids and Related Compounds
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:93, Doctoral thesis, 2004)Structure elucidation of charge delocalised carotenoid mono- and dications by NMR and VIS/NIR spectroscopy. Studies of the nucleophilic reactions of these cations. Studies of the β,β-carotene-iodine complex. Isolation and ... -
Chemical Bonding and Electronic Properties of the Co Adatom and Dimer Interacting with Polyaromatic Hydrocarbons
(Journal article, 2015)The density functional calculations presented here elucidate the nature of the interaction between the Co atom and dimer with a polyaromatic hydrocarbon (PAH). The results are analyzed in terms of structural, electronic, ... -
Chemo-enzymatic synthesis of enantiopure penbutolol and penbutolol derivative 1-(tert-butylamino)-3-(4-cyclopentylphenoxy)propan-2-ol
(Master thesis, 2021)I denne oppgaven ble to enantiomert rene stoffer syntetisert ved å bruke Candida antarctica lipase B (CALB) som enantioselektiv biokatalysator i kinetisk resolusjon. (S)-1-(tert-butylamin)-3-(4-syklopentylfenoksy)propan-2-ol ... -
Chemo-Enzymatic Synthesis of Enantiopure β-Antagonist (S)-Betaxolol
(Peer reviewed; Journal article, 2022)The β-blocker (S)-betaxolol has been synthesized in 99% enantiomeric excess (ee) from the commercially available precursor 4-(2-hydroxyethyl)phenol. The racemic chlorohydrin 1-chloro-3-(4-(2-(cyclopropylmethoxy)ethyl)phe ... -
Chemo-enzymatic synthesis of fluorinated carbohydrate derivatives
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:162, Doctoral thesis, 2011)The enzymatic hydrolysis of the benzoylated methyl pyranosides has been investigated using Candida rugosa lipase (CRL) as a catalyst. Hydrolyses of all substrates proceeded in a regiospecific manner at C-6. No acyl migration ... -
Chemoenzymatic Protocol for the Synthesis of Enantiopure β-Blocker (S)-Bisoprolol
(Peer reviewed; Journal article, 2023)The β-blocker (S)-bisoprolol hemifumarate has been synthesised in 96% enantiomeric excess with 19% total yield in a six-step synthesis. A transesterification reaction of the racemic chlorohydrin 1-chloro-3-(4-((2-isoprop ... -
Chemoenzymatic synthesis of (S)-carteolol: Kinetic resolution by transesterification of precursors with Candida antarctica Lipase B
(Master thesis, 2021)Det har vært et økt fokus på syntese av enantiomert rene aktive farmasøytiske ingredienser de siste tiårene. Kombinert med et økende behov for miljøvennlig kjemi så er det av stor interesse å utforske biokatalytisk syntese ... -
Chemoenzymatic synthesis of enantiopure beta blockers (R)-sotalol, (S)-penbutolol and (S)-bisoprolol
(Master thesis, 2022)Beta blockers are medications used to reduce blood pressure. In commercial beta blockers, the active pharmaceutical ingredient (API) is always a chiral molecule, and is usually present as a racemic mixture. Usually, one ... -
Chemoenzymatic Synthesis of Synthons as Percursors for Enantiopure Clenbuterol and Other β2-Agonists
(Journal article; Peer reviewed, 2018)Clenbuterol is a β2-agonist used in the veterinary treatment of asthma in several countries. The drug is listed on the World Antidoping Agency’s prohibited list due to its effect on increased protein synthesis in the body. ... -
Choice of Liquid Electrolytes In Anode Free Lithium Metal Batteries and its Impact on Lithium Morphology
(Bachelor thesis, 2022)En økning i etterspørser for energitette batterier fra elektriske kjøretøy har gitt insentiv for å utvikle ny teknologi for energitett lagring av elektrisitet. En teknologi som har muligheten til å fylle etterspørselen er ... -
Choked liquid flow in nozzles: crossover from heterogeneous to homogeneous cavitation and insensitivity to depressurization rate
(Peer reviewed; Journal article, 2021)The critical mass flow rate is the maximum flow rate that can pass through a constrained geometry such as a nozzle. For liquid CO2, it has been shown that homogeneous relaxation models systematically underpredict the ... -
Circulating trace elements: Comparison between early and late incubation in common eiders (Somateria mollissima) in the central Baltic Sea
(Peer reviewed; Journal article, 2020)We analyzed body mass and a panel of 64 trace elements in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea during the breeding seasons of 2017 (n = 27) and 2018 (n = 23). Using a ... -
Classical density functional theory for interfacial properties of hydrogen, helium, deuterium, neon and their mixtures
(Peer reviewed; Journal article, 2023)The DFT is developed to study the interfacial properties of hydrogen, helium, neon, deuterium and their mixtures, i.e. fluids that are strongly influenced by quantum effects at low temperatures. White Bear fundamental ... -
Climate change mitigation effects: How do potential CO2 leaks from a sub-seabed storage site in the Norwegian Sea affect Astarte sp. bivalves?
(Peer reviewed; Journal article, 2021)Carbon capture and storage (CCS) is one of the most promising mitigation strategies for reducing the emissions of carbon dioxide (CO2) to the atmosphere and may substantially help to decelerate global warming. There is an ...