Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 8230-8249 of 12540
-
Optimization of Co-Ni-Mg-Al mixed-oxides CO2 methanation catalysts with solution combustion synthesis: On the importance of Co incorporation and basicity
(Peer reviewed; Journal article, 2023)Hydrogenation of CO2 to methane is a promising prospect for the utilization of carbon dioxide. Ni-Mg-Al mixed oxides have been reported as a catalyst for this process. Their promotion with cobalt allows to improve Ni ... -
Optimization of Deacetylation Process for Regenerated Cellulose Hollow Fiber Membranes
(Journal article; Peer reviewed, 2017)Cellulose acetate (CA) hollow fibers were spun from a CA+ Polyvinylpyrrolidone (PVP)/N-methyl-2-pyrrolidone (NMP)/H2O dope solution and regenerated by deacetylation. The complete deacetylation time of 0.5 h was found at a ... -
Optimization of diffusion weighted-MRI: a study of T2 and ADC in healthy fibroglandular breast tissue
(Master thesis, 2019)Diffusjonsvektet magnetisk resonansavbildning er blitt stadig mer populært i deteksjon, gradering og evaluering av respons på behandling i brystkreft. Den tilsynelatende diffusjonskonstanten (ADC) reduseres i stor grad i ... -
Optimization of EBSD parameters for ultra-fast characterization
(Journal article; Peer reviewed, 2012)Ultra-fast pattern acquisition of electron backscatter diffraction and offline indexing could become a dominant technique over online electron backscatter diffraction to investigate the microstructures of a wide range of ... -
Optimization of Electrical Conductivity in Screw Extruded Wires
(Master thesis, 2017)The novel production method of screw extrusion was used to produce an electrical conducting wire of commercial pure aluminium. To optimize electrical properties, effects of impurity atoms in solid solution were examined ... -
Optimization of Electrical Conductivity in Screw Extruded Wires: The effect of aluminium oxide particles on screw extruded wires of pure aluminium
(Master thesis, 2021)Elektrisk ledende tråder av en aluminium-matrise kompositt (aluminium matrix composite (AMC)) ble produsert gjennom kontinuerlig skrueekstrudering av metaller (Metal continuous screw extrusion (MCSE)). Kompositten bestod ... -
Optimization of Emulsification and Microencapsulation of Balangu (Lallemantia royleana) Seed Oil by Surface Response Methodology
(Peer reviewed; Journal article, 2022)Balangu (Lallemantia royleana) seed oil is a valuable source of omega-6 fatty acids that reduces the risk of cardiovascular diseases. Due to the high sensitivity of this oil to environmental factors, microencapsulation has ... -
Optimization of Energy Storage in Buildings Based on Self-optimizing Control
(Master thesis, 2014)A steadily increasing fraction of Europe's electricity is generated by renewable and less reliable energy sources. It is therefore necessary to find smart ways to store excess energy until it is demanded. This could be ... -
Optimization of fixed-order controllers using exact gradients
(Journal article; Peer reviewed, 2018)Finding good controller settings that satisfy complex design criteria is not trivial. This is also the case for simple fixed-order controllers including the three parameter pid controller. To be rigorous, we formulate the ... -
Optimization of Heat Exchanger Networks using Aspen Energy Analyzer and SeqHENS
(Master thesis, 2019)Syntese av nettverk for varmevekslere har vært et av de mest undersøkte områdene innen prosessindustrien de siste 40 årene. I løpet av 70-tallet ble det rettet stor oppmerksomhet mot dette området på grunn av den første ... -
Optimization of heat exchanger networks using Gaussian process regression
(Master thesis, 2021)Optimal drift av varmevekslernettverk kan spare både energi og penger. Dette studiet utforsket om Gaussiske prosesser kan kontrollere ventilåpninger på et varmevekslernettverk. I praksis er det vanskelig å måle alle tingene ... -
Optimization of Hemocompatible Thin Film Coatings for Biomedical Applications
(Master thesis, 2021)Bruken av biomedisinsk utstyr har gitt store fordeler til den menneskelige befolkningen i tiårene siden det vitenskapelige feltet først ble utviklet. Bio- og hemokompatibiliteten til eksisterende utstyr burde derimot ... -
Optimization of Operation and Remaining Lifetime of a Subsea System
(Master thesis, 2016)A model of a subsea system was developed and optimization for operation and remaining life time. For the modelling of the remaining life time the compressor efficiency was used as there is no statistical or physical model ... -
Optimization of PEG-based membranes and mixed matrix membranes for CO2 capture
(Doctoral theses at NTNU;2020:35, Doctoral thesis, 2019)Design better CO2 separation membranes for capture CO2 The elevated CO2 concentration has been widely recognized as one of the main factors leading to the increasing serious global warming. To prevent it from continuing ... -
Optimization of PVA Nano-composite Membranes in Membrane Contactor for CO2 Capture
(Master thesis, 2013)The aim of this report is to evaluate and optimize poly vinyl alcohol (PVA) composite membrane containing nanoparticles such as carbon nanotubes (CNTs), titanium dioxide or biofibers cross-linked with glutaraldehyde for ... -
Optimization of running shoe cushioning: Mechanical behavior of polymeric foams used for running shoe cushioning
(Master thesis, 2020)In order to be innovative and to offer ever more efficient running shoes, Decathlon seeks to optimize the cushioning of its running shoes using numerical simulation. These numerical tests will make it possible to test a ... -
Optimization of Stöber Method to Control Morphology and Enhance Stability of Amine-Functionalized Silica Coated Iron Oxide Nanoparticles
(Master thesis, 2023)Silikabelagte jernoksidnanopartikler har en bemerkelsesverdig kombinasjon av egenskaper, inkludert superparamagnetisme, utmerket stabilitet i vandige løsninger, enkel overflatefunksjonalisering og biokompatibilitet, noe ... -
Optimization of Strength and Permeability of Tape casted Porous La0.2Sr0.8Fe0.8Ta0.2O3-δ
(Master thesis, 2012)Ceramics with mixed ionic and electronic conductivity are being investigated for oxygen separation from air, intended for the production of syngas. Asymmetric membranes, consisting of a dense membrane co-sintered with a ... -
Optimization of the 2',7'-Dichlorodihydrofluorescein Diacetate (DCFH-DA) Method, and Evaluation of the Production of Reactive Oxygen Species (ROS) in the Microalgae Nannochloropsis oceanica
(Master thesis, 2017)Målet med prosjektet er å få en bedre forståelse av produksjon av reaktivt oksygen (ROS) i mikroalger og finne de optimale lysforholdene for vekst. I tillegg skal de beste tidsintervallene mellom lys og mørke for å redusere ... -
Optimization of the casting process for silicon nitride crucibles
(Master thesis, 2017)As renewable energy sources get to replace conventional fossil fuel power plants, solar cells will come to play a major role. For this purpose, their efficiency must be enhanced and their cost minimized in order to compete ...