Browsing NTNU Open by Title
Now showing items 68200-68219 of 100652
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Oxidation of silicon in aqueous media
(Master thesis, 2011)Silicon is used in the production of various ceramic products. As the solar industry is advancing, the need for reusable crucibles for the casting of solar grade silicon has arisen. One idea is to produce silicon nitride ... -
Oxidation of silicon powder in humid air
(Master thesis, 2012)Silicon undergoes oxidation at room temperature, causing a formation of an oxide layer on its surface. Gaining knowledge about the oxide layer formed during ageing, is valuable with regards to production of high quality ... -
Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese
(Peer reviewed; Journal article, 2021)Lifetime and reliability in realistic operating conditions are important parameters for the application of thin-film piezoelectric microelectromechanical systems (piezoMEMS) based on lead zirconate titanate (PZT). Humidity ... -
Oxidative and Hydrolytic Changes in Lipids of pelagic Fish during different Processing Steps
(Master thesis, 2014)Lipid oxidation and lipid hydrolysis are two major causes for deterioration in marine lipids, mainly due to the high content of polyunsaturated fatty acids. Differences in fatty acid composition, storage conditions and ... -
Oxidative degradation of 2-ethanolamine: The effect of oxygen concentraton and temperature on product formation
(Journal article; Peer reviewed, 2013)Oxidative degradation experiments on 2-ethanolamine (MEA) were performed at four different oxygen concentrations and at two temperatures. MEA loss and degradation product build-up were measured. Increasing the temperature ... -
Oxidative degradation of amines using a closed batch system
(Journal article; Peer reviewed, 2013)Oxidative degradation experiments on five amines and two amino acids were performed in a new closed setup at atmospheric pressure. For most of the amines/amino acids significant degradation was not present under these ... -
Oxidative degradation of triethylene glycol
(Journal article; Peer reviewed, 2024)Triethylene glycol (TEG) is unstable in the presence of oxygen and at high temperatures, though the degradation mechanisms occurring are not properly understood. In attempting to close some of the knowledge gaps, ... -
Oxidative degradation of triethylene glycol
(Peer reviewed; Journal article, 2024)Triethylene glycol (TEG) is unstable in the presence of oxygen and at high temperatures, though the degradation mechanisms occurring are not properly understood. In attempting to close some of the knowledge gaps, ... -
Oxidative Dehydrogenation of Ethane and Propane at Short Contact Time
(Dr. ingeniøravhandling, 0809-103X; 2003:4, Doctoral thesis, 2003)Olefins are important intermediates for many industrial processes and the demand for olefins is forecasted to grow for the next years. One of the promising alternative routes for the production of olefins is oxidative ... -
Oxidative dehydrogenation of ethane at short contact times
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:188, Doctoral thesis, 2008) -
Oxidative Ladle Refining of Metallurgical Grade Silicon: Refining of Ca and Al Impurities
(Doctoral theses at NTNU;2021:277, Doctoral thesis, 2021)English summary Metallurgical grade silicon (MG-Si) is used as an alloying agent, raw material, or as a precursor compound, in the production of aluminum alloys, silicones, photovoltaics, and electronics. Access to ... -
Oxidative Refining of Metallurgical Grade Silicon: Lab-Scale Measurements on the Overarching Refining Behavior of Ca and Al
(Peer reviewed; Journal article, 2022)Oxidative ladle refining (OLR) is the most widely used refining process for removal of dissolved Ca and Al in the industrial production of metallurgical grade silicon (MG-Si). Refining occurs by purging the silicon alloy ... -
Oxidative status and intestinal health of gilthead sea bream (Sparus aurata) juveniles fed diets with different ARA/EPA/DHA ratios
(Peer reviewed; Journal article, 2020)The present work assessed the effects of dietary ratios of essential fatty acids, arachidonic (ARA), eicosapentaenoic (EPA) and docosahexaenoic acid (DHA), on liver and intestine oxidative status, intestinal histomorphology ... -
Oxidative stress and the ischemic heart: A study in patients undergoing coronary revascularization
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:198, Doctoral thesis, 2004)The isoprostane 8-iso-PGF2α proved to be a valuable marker of conditions associated with oxidative stress in all three clinical studies (I-III). Somewhat surprising, no significant correlation with myocardial reperfusion ... -
Oxidative stress responses in liver of A/J mice fed an environmentally relevant mixture of perfluoroalkyl substances (PFASs)
(Master thesis, 2021)Recently, the adverse effects of perfluoroalkyl substances (PFASs), have been in the spotlight of several studies. Besides the known tumour inducing and endocrine disrupting characteristics of these chemicals, there has ... -
Oxide Hydrogen Interaction and Porosity Development in Al-Si Foundry Alloys
(Master thesis, 2011)The oxide level of an A356 aluminium alloy will be controlled by (i) melting, casting and remelting A356 aluminium alloy for increasing the bi-films levels in the melt, and by (ii) additions of an extruded aluminium oxide ... -
Oxide Sensor Measurements and Simultaneous Optical Observations During Dissolution of Alumina in Cryolite Melt
(Journal article; Peer reviewed, 2022) -
Oxide – organic heterostructures: a case study of charge displacement absence at a SnO2 – copper phthalocyanine buried interface
(Journal article; Peer reviewed, 2018)Reduced tin dioxide/copper phthalocyanine (SnOx/CuPc) heterojunctions recently gained much attention in hybrid electronics due to their defect structure, allowing tuning of the electronic properties at the interface towards ... -
OXR1A, a Coactivator of PRMT5 Regulating Histone Arginine Methylation
(Peer reviewed; Journal article, 2020)Oxidation resistance gene 1 (OXR1) protects cells against oxidative stress. We find that male mice with brain-specific isoform A knockout (Oxr1A−/−) develop fatty liver. RNA sequencing of male Oxr1A−/− liver indicates ... -
Oxy-combustion coal based power plants with CO2 capture: Process integration approach to reduce capture penalty
(Doctoral thesis at NTNU;2015:34, Doctoral thesis, 2015)This thesis presents studies on coal based power plants with CO2 capture. As coal is the single largest fuel in use today to generate electricity, technologies to improve the efficiency and reduce emissions are critical ...