Browsing Institutt for kjemi by Document Types "Doctoral thesis"
Now showing items 41-60 of 135
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Energy dissipation in biomolecular machines
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:231, Doctoral thesis, 2012)The operation of a molecular pump, the calcium pump of sarcoplasmic reticulum is studied using mesoscopic non-equilibrium thermodynamics and molecular dynamics. The mesoscopic non-equilibrium thermodynamic description of ... -
Energy efficient operation of distillation columns and a reactor applying irreversible thermodynamics
(Dr. ingeniøravhandling, 0809-103X; 2002:41, Doctoral thesis, 2002)In this thesis the entropy production rate of diabatic distillation columns and a SO2 converter were minimised. This is the same as maximising the second law energy efficiency of the systems. The development of chemical ... -
Engineering chemistry in the strong coupling regime: theoretical insights and new perspectives
(Doctoral theses at NTNU;2023:316, Doctoral thesis, 2023)Cavity quantum optics deals with the interaction of photons and molecules inside an optical cavity, i.e., in the region between two closely spaced mirrors. Perfect optical cavities can only support certain frequencies of ... -
Enhancing the quality of chemistry education in Ethiopia: A study of the use and impact of small-scale chemistry experimentation
(Doctoral thesis at NTNU;2015:243, Doctoral thesis, 2015)Despite the policy recommendations for active and practical oriented teaching, the current situation in Ethiopian science classrooms can be described as teacher-centred, where teaching styles such as practical work are ... -
Environmental cycling of atmospheric mercury in the Arctic: Chemical fractionation, desposition and post despositional fate
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:272, Doctoral thesis, 2011) -
Equilibrium and Nonequilibrium Thermodynamics of Planar and Curved Interfaces
(Doctoral thesis at NTNU;2015:301, Doctoral thesis, 2015)Interfaces can be found everywhere and their properties are of major importance to a wide variety of processes, ranging from DNA replication to weather forecasts. This work is a fundamental study of systems with planar ... -
Ethiopian Christian Paintings from a Physico-chemical Perspective: The Wall Paintings of Yemrehanna Krestos, Petros Paulos and Abune Yemata Guh Churches
(Doctoral theses at NTNU;2016:119, Doctoral thesis, 2016)Summary of thesis: During the past decades there has been an increasing application of scientific analytical methods in the area of conservation of cultural heritage objects and to address art historical and archaeometric ... -
Evaluating characterization methods for new porous functional materials
(Doctoral theses at NTNU;2021:312, Doctoral thesis, 2021)This thesis is concerned with the development and evaluation of characterization methods for new porous functional materials. Functionalized one-dimensional silicoaluminophosphates (SAPOs) were chosen as model systems for ... -
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 ... -
“Fluid transport through nanoporous media in the presence of phase transitions
(Doctoral theses at NTNU;2022:268, Doctoral thesis, 2022)Clean potable water is among the most precious commodities in the world. Even though water is not sparse on the planet’s surface, it is not sufficiently accessible for about 4 billion people, who are experiencing serious ... -
Gold Complex Preparation, Catalysis and Catalyst Activation
(Doctoral theses at NTNU;2022:195, Doctoral thesis, 2022)Gold complexes and salts have proven to be exceptional catalysts for the activation of carbon-carbon multiple bonds towards nucleophilic attack. Gold catalysts allow for the synthesis of complex products under mild conditions. ... -
Gold(III) Complexes: Ligand Design and Catalytic Properties
(Doctoral theses at NTNU;2020:264, Doctoral thesis, 2020)Gold catalysis has become one of the fastest growing fields in organic chemistry, providing new transformations and offering excellent chemoselectivities at mild reaction conditions. So far, the main focus within Au(III) ... -
Heterogeneous ceramic interfaces in solid oxide fuel cells and dense oxygen permeable membranes
(Dr. ingeniøravhandling, 0809-103X; 2000:109, Doctoral thesis, 2000)Solid oxide fuel cells and oxygen permeable membranes have received considerable attention during the last decade due to the increasing demand for electrical energy and easily transportable fuels combined with the requirement ... -
High resolution inductively coupled plasma mass spectrometry: Some applications in biomedicine
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:109, Doctoral thesis, 2008)Even though trace elements are present at minute amounts in the human body, they have a considerable impact on human health, either as essential elements in biochemical functions indispensable for life, or on the contrary, ... -
Hydrogen dissociation under equilibrium and non-equilibrium conditions A study using molecular dynamics
(Doctoral thesis at NTNU;2014:323, Doctoral thesis, 2014)The aim of this thesis project was to model reactions using classical molecular dynamics simulations under both equilibrium and non-equilibrium conditions and to study the effect of the reaction on the transport properties ... -
Image segmentation and multivariate analysis in two-dimensional gel electrophoresis
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:200, Doctoral thesis, 2007)The topic of this thesis is data-analysis on images from two-dimensional electrophoretic gels. Because of the complexity of these images, there are numerous steps and approaches to such an analysis, and no “golden standard” ... -
Impedance Diagrams of the Electrodes in the Polymer Electrolyte Membrane Fuel Cell
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:179, Doctoral thesis, 2007)The objective of this thesis was to better understand the electrodes of the polymer electrolyte membrane fuel cell (PEMFC), and especially the anode. We were interested in how CO poisoning affected the fuel cell and therefore ... -
Improving the Second law efficiency of a cryogenic air separation unit
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:318, Doctoral thesis, 2011)One-quarter of the worldwide greenhouse gas emissions is emitted by fossil fuel based power plants. In order to limit future climate changes caused by these emissions, several types of CO2-capturing power plants are currently ... -
In situ X-ray absorption spectroscopic studies of unsupported and supported CoRe during ammonia synthesis/ammonia decomposition
(Doctoral theses at NTNU;2021:407, Doctoral thesis, 2021)In situ X-ray absorption spectroscopy (XAS) studies are crucial for studying the local environment, oxidation state and speciation of transition metals during thermal pre-treatments and during working conditions of catalysts. ... -
Infrared spectroscopic studies of zeotype and zeolite catalyzed hydrocarbon/oxygenate conversion reactions
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:121, Doctoral thesis, 2014)The methanol to hydrocarbons (MTH) reaction is an important reaction involved in the chain of processes for the conversion of alternative carbon sources into liquid fuel and olefins. One key reaction in the complex MTH ...