Blar i Institutt for kjemi på tittel
Viser treff 1005-1024 av 1404
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Simple generalized reaction conditions for the conversion of primary aliphatic amines to surfactant-like guanidine salts with 1H-pyrazole carboxamidine hydrochloride
(Journal article, 2017)Improved reaction conditions for the electrophile reaction between a free aliphatic amine and 1H-pyrazole carboxamidine have been discovered. The surfactant-like guanidine salts, which are often hard to work with, were ... -
A simple hanging mercury drop electrode
(Peer reviewed; Journal article, 2000)A device producing reproducible hanging mercury drops at the end of a glass capillary is described. Mercury flow through th capillary is controlled by means of a closing needle actuated by an electromagnetic relay. The ... -
A simplified pore-scale model for slow drainage including film-flow effects
(Peer reviewed; Journal article, 2023)Liquid-filled corners and capillary bridges can establish networks connecting seemingly isolated clusters during drainage in porous media. Coupled with drainage through the bulk of pores and throats, the flow through these ... -
Simulating absorption spectra of flavonoids in aqueous solution: A polarizable QM/MM study
(Journal article; Peer reviewed, 2020)We present a detailed computational study of the UV/Vis spectra of four relevant flavonoids in aqueous solution, namely luteolin, kaempferol, quercetin, and myricetin. The absorption spectra are simulated by exploiting a ... -
Simulating electron-avalanche-driven positive streamers in dielectric liquids
(Doctoral theses at NTNU;2020:289, Doctoral thesis, 2020)Summary of thesis: The thesis presents a novel predictive model for simulating positive streamers in dielectric liquids. Such liquids are commonly used for electrical insulation of high-power equipment, for example power ... -
Simulating the unwinding of DNA - Method development, application and didactic dissemination.
(Doctoral theses at NTNU;2019:13, Doctoral thesis, 2019)Understanding diseases related to DNA requires insight into the nature of DNA dynamics, specifically how the dynamics affects the equilibrium properties. The mesoscopic Peyrard-Bishop-Dauxois model has been able to ... -
Simulation model for the propagation of second mode streamers in dielectric liquids using the Townsend-Meek criterion
(Journal article; Peer reviewed, 2018)A simulation model for second mode positive streamers in dielectric liquids is presented. Initiation and propagation is modeled by an electron-avalanche mechanism and the Townsend–Meek criterion. The electric breakdown is ... -
Simultaneous determination of 15 PFCs in harbour porpoises from the Norwegian coast
(Master thesis, 2020)The concentrations of 15 perfluorinated compounds (PFCs), including ten perfluorocarboxylic acids (C5-C14), three perfluoro alkylsulfonic acids (C4, C6, C8) and two perfluorinated sulfonamides (PFOSA, N-Et-PFOSA) were ... -
Single Electrode Entropy Change for LiCoO2 Electrodes
(Journal article, 2017)Heat effects are known to be crucial for the performance of the Li-battery. In addition to the irreversible effects (e.g. Joule heat), reversible heat effects may play a role. These effects, i.e. the Soret and Seebeck ... -
Single Enantiomers from Racemates. Lipase catalysed Kinetic Resolution of Secondary Alcohols. In situ Stereoinversion
(Journal article; Peer reviewed, 2017)Kinetic resolution catalysed by lipases is a well suited strategy in order to provide enantiopure organic compounds. Factors affecting the enantiomeric ratio, the E-value, such as substrate structure, temperature effects, ... -
Single-step microwave-assisted hot water extraction of hemicelluloses from selected lignocellulosic materials – A biorefinery approach
(Journal article, 2017)The viability of single-step microwave-induced pressurized hot water conditions for co-production of xylan-based biopolymers and bioethanol from aspenwood sawdust and sugarcane trash was investigated. Extraction of ... -
Sink-substituerte manganferritters elektromagnetiske egenskaper og mulige bruksområder.
(Bachelor thesis, 2021)Målet med prosjektet er å gjøre egenrådige kildesøk for å danne argumenter for bruk av ett type materiale for en mer bærekraftig framtid. Elektriske og magnetiske egenskaper ved sink-manganferritter av ulike sammensetninger ... -
Size and shape effects on the thermodynamic properties of nanoscale volumes of water
(Journal article; Peer reviewed, 2017)Small systems are known to deviate from the classical thermodynamic description, among other things due to their large surface area to volume ratio compared to corresponding big systems. As a consequence, extensive ... -
Skogholt’s disease—A tauopathy precipitated by iron and copper?
(Peer reviewed; Journal article, 2022)Background It has been suggested that Skogholt’s disease is a new neurological disease entity. The disease, confined to a family line in Hedmark county, Norway, usually affects both the brain and peripheral nerves. Typical ... -
Skypunktsekstraksjon for kvantitativ sporspesiering av arsen i vann
(Bachelor thesis, 2020) -
Small Size Effects in Open and Closed Systems: What Can We Learn from Ideal Gases about Systems with Interacting Particles?
(Peer reviewed; Journal article, 2021)Small systems have higher surface area-to-volume ratios than macroscopic systems. The thermodynamics of small systems therefore deviates from the description of classical thermodynamics. One consequence of this is that ... -
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 ... -
Soil-water influences on trace elements and organic matter in Arctic
(Master thesis, 2019)Abstract In this study, the impact of pH on leaching of elements from soils was tested. Samples were taken from Bayelva / Stuphalle, Svalbard in August 2018. Overall, the impact of three pH levels, 2, 7 and 10 was ... -
Solid state phase transition materials for thermal energy storage - A review on the potential and limitations of solid-solid phase change materials for latent thermal energy storage
(Bachelor thesis, 2023)Termisk energilagring spiller en viktig rolle i utviklingen av en mer bærekraftig fremtid, og fastfase faseendringsmaterialer for latent termisk energilagring har et stort potensial i denne utviklingen. Latent varmelagring ... -
Solvent Effects on Optical Rotation: On the Balance between Hydrogen Bonding and Shifts in Dihedral Angles
(Journal article; Peer reviewed, 2017)Optical rotations of several conformers of four fluorinated molecules containing the 1-naphthalene or 4-(benzyloxy)phenyl group at the stereocenter have been calculated both in the gas phase and in an aqueous environment. ...