Blar i Institutt for fysikk på tittel
Viser treff 1705-1724 av 2669
-
Parameterizations of immiscible two-phase flow in porous media
(Peer reviewed; Journal article, 2023)A fundamental variable characterizing immiscible two-phase flow in porous media is the wetting saturation, which is the ratio between the pore volume filled with wetting fluid and the total pore volume. More generally, ... -
Parametric model of the Mueller matrix of a Spectralon white reflectance standard deduced by polar decomposition techniques
(Journal article; Peer reviewed, 2013)Decomposition methods have been applied to in-plane Mueller matrix ellipsometric scattering data of the Spectralon reflectance standard. Data were measured at the wavelengths 532 nm and 1500 nm, using an achromatic optimal ... -
Parametrisering av Kraftfelt for ReaxFF
(Master thesis, 2008)Denne oppgaven tar for seg innsamling av data for optimerte geometrier, energier og ladninger for molekylstrukturer av aluminium, indium (gruppe 3-atomer) og arsen (gruppe 5-atom), samt hydrogen. All informasjon er samlet ... -
Parametrisering av kraftfelt for ReaxFF med H, C, Si og Ge
(Master thesis, 2008)Sammenligning av DFT og ReaxFF beregninger for å kunne validere gjorte beregninger som input til paramtreisering av kraftfelt i ReaXFF for C, Si og Ge. -
Partial Discharges on an Epoxy Surface due to Water Droplets
(Master thesis, 2011)Offshore wind turbines are exposed to a very harsh environment and can sustain significant damage during operation. In this thesis work, the possibilities of partial discharges in an insulation system of an offshore wind ... -
Particle Assembly Guided by Electrohydrodynamics and Dielectrophoresis
(Doctoral thesis at NTNU;2016:121, Doctoral thesis, 2016)Norwegian: Vanlige utfordringer i forbindelse med oljeutvinning og produksjon av blant annet mat, medisin og kosmetikkprodukter er å hindre at dråper vokser sammen. Prøver man å blande to ikke-blandbare væsker (som ... -
Particle creation in vacuum states using quantum field theory
(Master thesis, 2021)I denne masteravhandlingen introduserer vi en kvantisert felt-teori. Det kvantiserte feltet brukes til å vise at partikler blir skapt i tilstander som opprinnelig er vakum-tilstander, som betyr at det er ingen partikler ... -
Particle Production in Gravitational Fields
(Master thesis, 2013)In this thesis, we discuss the phenomenon of particle production in gravitational fields. We present the general framework in flat Friedmann-Robertson-Walker spacetimes and apply it to an asymptotically static model in two ... -
Patterned cell arrays and patterned co-cultures on polydopamine-modified poly(vinyl alcohol) hydrogels
(Journal article; Peer reviewed, 2013)Live cell arrays are an emerging tool that expand traditional 2D in vitro cell culture, increasing experimental precision and throughput. A patterned cell system was developed by combining the cell-repellent properties of ... -
Påvirkningen av temperaturgradienter for tolkningen av rotasjonstemperaturer
(Master thesis, 2018)Hydroksyl (OH) utstråling er en fotokjemisk reaksjon som skjer i et relativt tynt område ($\sim$5 km) sentrert rundt ca 90 km høyde. I denne oppgaven ble det laget et syntetisk spektrum ved hjelp av en steady-state kjemimodell ... -
Pd-based Membranes for Hydrogen Separation - Membrane Structure and Hydrogen Sorption and Permeation Behavior
(Master thesis, 2013)Efficient separation of hydrogen from gas mixtures is a truly enabling technology for hydrogen as an energy carrier. Palladium(Pd)-based membranes are 100% selective to hydrogen, but need to be made thin, yet without defects ... -
Peer learning and concept test, Formative assessment a learning opportunity
(Chapter, 2019)The experiences and conceptions about the physical world that students bring into the classroom may support or inhibit them in gaining an understanding congruent with the physical theories. This is relevant for classical ... -
Perceptions of technology education:: a cross-case study of teachers realising technology as a new subject of teaching
(Doctoral thesis, 2003)Education has become internationalised. Educational trends, concerns and debates exceed national and cultural borders, and ideas and innovations are being exchanged and transferred. Many curriculum programmes and reforms ... -
Perfect depolarization in single scattering of light from uncorrelated surface and volume disorder
(Journal article, 2020)-polarized waves from uncorrelated surface and volume disorder can lead to perfect depolarization. The degree of polarization vanishes in specific scattering directions that can be characterized based on simple geometric ... -
Performance analysis of heat and energy recovery ventilators using exergy analysis and nonequilibrium thermodynamics
(Journal article; Peer reviewed, 2018)The increased attention to energy savings has contributed to more widespread use of energy recovery systems for building ventilation. We investigate the efficiency of such systems under different outdoor conditions using ... -
Performance of neural networks in search for a new dark matter aware gauge boson Z' in final states with leptons and missing transverse energy atthe LHC with the ATLAS detector
(Master thesis, 2023)Vi gjennomfører et søk etter et nytt gaugeboson Z' i sluttilstander med to leptoner og manglende transversal energi. Søket er basert på hypotetiske mørk Higgs-modeller og "light vector"-modeller. Data generert av ... -
Periapsis precession of all viable planets
(Bachelor thesis, 2024)Generell relativitetsteori er i forkant av moderne fysikk. Flere tester på teorien er høyt verdsatt, for a skyve fysikkens grenser. Ett spesifikt felt dette kan anvendes på er periapsis presesjon av planeter. Denne oppgaven ... -
Permeability, Growth and Morphology of Coastal Ice - Site Study in Van Mijenfjorden, Svalbard
(Master thesis, 2015)Coastal ice includes the parts of the sea ice that are stressed and deformed by tidal motion; the ice foot (the inner part that is frozen to the ground) and the hinge zone (the zone where cracking occurs due to tidal ... -
A Perturbation Analysis Approach for Studying the Effect of Swelling Kinetics on Instabilities in Hydrogel Plates
(Journal article; Peer reviewed, 2021)The onset of surface instability during diffusion-driven swelling of hydrogels depends on the kinetics of the swelling process. Here, we outline a perturbation analysis framework using a finite difference approach for ... -
pH-dependent complexation of polyelectrolytes and spherical nanoparticles
(Doctoral theses at NTNU;2019:270, Doctoral thesis, 2019)The adsorption and desorption of polyelectrolytes (PEs) on other macromolecules are utilized in a number of different industries and biological applications. Electrostatic interactions are important in these systems, and ...