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The role of migratory birds in the transport of pollutants to the Arctic
(Master thesis, 2021)Reint intuitivt bør Arktis, en avsidesliggende og øde del av verden, være relativt upåvirka av menneskelig aktivitet. Langtransport og avsetting av persistente, bioakkumulative og giftige stoffer (PBG) fra atmosfæren og ... -
The Salting-out Effect in Some Physical Absorbents for CO2 Capture
(Journal article; Peer reviewed, 2018)The solubility of CO2 in organic solvents N-methyl-2-pyrrolidone (NMP), methanol and monoethylene glycol (MEG) at 30 °C was measured together with its heat of absorption. The salts lithium nitrate (LiNO3), lithium chloride ... -
The state of minimum entropy procuction in reactor design
(Master thesis, 2009) -
The use of Green's Functions in Quantum Chemistry
(Bachelor thesis, 2020)Modern quantum chemical calculations commonly use wave function based models or densitry functionaltheory (DFT). Using Green’s functions is an approach that has not been explored much, and is one thathas only been explored ... -
The use of N-terminal peptide fusions to stimulate recombinant gene expression in Escherichia coli
(Master thesis, 2011)Previous studies by the Microbiology and Molecular Genetics (MOLGEN) research group at NTNU have investigated how N-terminal peptide fusions influence gene expression levels. The present study seeks to expand these efforts ... -
Theory and simulation of shock waves: Entropy production and energy conversion
(Journal article; Peer reviewed, 2021)We have considered a shock wave as a surface of discontinuity and computed the entropy production using nonequilibrium thermodynamics for surfaces. The results from this method, which we call the “Gibbs excess method” ... -
The thermal boundary resistance at semiconductor interfaces: a critical appraisal of the Onsager vs. Kapitza formalisms
(Journal article; Peer reviewed, 2018)We critically readdress the definition of thermal boundary resistance at an interface between two semiconductors. By means of atomistic simulations we provide evidence that the widely used Kapitza formalism predicts thermal ... -
Thermal conductivity and internal temperature profiles of Li-ion secondary batteries
(Journal article, 2017)In this paper we report the thermal conductivity for several battery components. Materials were obtained from several electrode- and separator suppliers, and some were extracted from commercial batteries. We measured with ... -
Thermal conductivity and temperature profiles in carbon electrodes for supercapacitors
(Journal article, 2014)The thermal conductivity of supercapacitor film electrodes composed of activated carbon (AC), AC with 15 mass% multi-walled carbon nanotubes (MWCNTs), AC with 15 mass% onion-like carbon (OLC), and only OLC, all mixed with ... -
Thermal conductivity of carbon dioxide from non-equilibrium molecular dynamics: a systematic study of several common force fields
(Journal article; Peer reviewed, 2014)We report a systematic investigation of the thermal conductivity of various three-site models of carbon dioxide (CO2) using nonequilibrium molecular dynamics in the temperature range 300–1000 K and for pressures up to 200 ... -
Thermal Conductivity of Molten Carbonates with Dispersed Solid Oxide from Differential Scanning Calorimetry
(Journal article; Peer reviewed, 2019)Recently, there has been a noticeable increase in the applications of composite mixtures containing molten salt and solid oxide for thermal energy conversion and storage systems. This highlights that thermal conductivity ... -
Thermal Conductivity, Heat Sources and Temperature Profiles of Li-ion Batteries
(Journal article; Peer reviewed, 2014)In this paper we report the thermal conductivity of several commercial and non-commercial Li-ion secondary battery electrode materials with and without electrolytesolvents. We also measure the Tafel potential, the ohmic ... -
The thermal diffusion coefficient of membrane-electrode assemblies relevant to polymer electrolyte membrane fuel cells
(Peer reviewed; Journal article, 2022)This study focuses on the role of the combined gas diffusion layer and membrane on thermal diffusion coefficient and its effects on water transport in polymer electrolyte membrane fuel cell. Thermal diffusion coefficients ... -
Thermal Driving Forces Across Membrane Systems: Energy Conversion and Water Purification
(Doctoral theses at NTNU;2024:223, Doctoral thesis, 2024)Among the energy sources used to fuel our modern industrialized society, industrial waste heat is among the most abundant and untapped. Wherever energy conversion from high-grade sources occurs, a fraction of this energy ... -
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 ... -
Thermal transport in polyethylene: The effect of force fields and crystallinity
(Peer reviewed; Journal article, 2021)In this article, we study the local structure and heat transfer properties (thermal conductivity and interfacial conductance) in model semi-crystalline Polyethylene (PE) by non-equilibrium molecular dynamics. We compare ... -
Thermo-molecular orientation effects in fluids of dipolar dumbbells
(Journal article, 2014)We use molecular dynamics simulations in applied thermal gradients to study thermomolecular orientation (TMO) of size-asymmetric dipolar dumbbells with different molecular dipole moments. We find that the direction of the ... -
Thermo-osmosis in membrane systems: a review
(Journal article; Peer reviewed, 2017)We give a first review of experimental results for a phenomenon little explored in the literature, namely thermal osmosis or thermo-osmosis. Such systems are now getting increased attention because of their ability to use ... -
Thermo-osmotic pressure and resistance to mass transport in a vapor-gap membrane
(Peer reviewed; Journal article, 2021)We have investigated the transport of fluid through a vapor-gap membrane. The transport due to a membrane temperature difference was investigated under isobaric as well as non-isobaric conditions. Such a concept is relevant ... -
Thermodynamic Characterization Of Two Layers Of CO2 On A Graphite Surface
(Journal article; Peer reviewed, 2014)We find by examination of density profiles that carbon dioxide adsorbs on graphite in two distinct layers. We report the activity coefficient, entropy and enthalpy for CO2 in each layer using a convenient computational ...