Browsing Institutt for fysikk by Title
Now showing items 2007-2026 of 2698
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Rochelle salt - A structural reinvestigation with improved tools. I. the high-temperature paraelectric phase at 308 - K
(Peer reviewed; Journal article, 2015)The crystal structure of the high-temperature paraelectric phase of Rochelle salt (K+·Na+·C4H4O62−·4H2O) at 308 K has been reinvestigated using synchrotron X-ray diffraction with refinement parameters R(int) = 0.0123, final ... -
The Role of Boron in Low Copper Spheroidal Graphite Irons
(Peer reviewed; Journal article, 2023)The effects of boron at concentrations ranging from 5 to 525 ppm in low copper spheroidal graphite iron (SGI) has been studied. At 130 to 140 ppm, no particular effect of boron was observed on the size distributions, number ... -
Role of Pore-Size Distribution on Effective Rheology of Two-Phase Flow in Porous Media
(Peer reviewed; Journal article, 2021)Immiscible two-phase flow of Newtonian fluids in porous media exhibits a power law relationship between flow rate and pressure drop when the pressure drop is such that the viscous forces compete with the capillary forces. ... -
The role of pressure and defects in the wurtzite to rock salt transition in cadmium selenide
(Peer reviewed; Journal article, 2022)Using molecular dynamics and path sampling techniques we investigated the effect of pressure and defects in the wurtzite to rock salt transition in cadmium selenide (CdSe). In the pressure range 2–10 GPa, rate constants ... -
Role of protein self-association on DNA condensation and nucleoid stability in a bacterial cell model
(Journal article; Peer reviewed, 2019)Bacterial cells do not have a nuclear membrane that encompasses and isolates the genetic material. In addition, they do not possess histone proteins, which are responsible for the first levels of genome condensation in ... -
Role of the quenched disorder in fracture front propagation
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:81, Doctoral thesis, 2013)The process of materials fracture is not yet understood across all levels. This thesis contains detailed description on a model of in-plane fracture along with results obtained using this model. The results from the model ... -
Rom for læring: Hva kan erfaringer fra autentisk naturvitenskapeligarbeid bidra med i klasserommet?
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:92, Doctoral thesis, 2014)Arbeidet presentert i denne avhandlingen har tatt for seg tiltak for lærere og fysikkelever som har foregått i regi av Nasjonalt senter for romrelatert opplæring (NAROM) ved Andøya Rakettskytefelt. Disse tiltakene har gitt ... -
Room Geometries with non-classical Reverberation Times
(Master thesis, 2015)In this Master s thesis, it has been examined whether it is possible to find rooms of such a geometry that the reverberation time becomes shorter than the predicted value of Sabine and Eyring. This was investigated using ... -
Rotation of the onion state in micromagnetic rings
(Master thesis, 2013)The behavior of the movement of the two domain walls that make up the onion state in 5 μm Permalloy rings have been studied under rotation using longitudinal magneto-optical Kerr effect. Resistance to the domain wall motion ... -
Rotational Curves of the Milky Way Galaxy and Andromeda Galaxy in Light of Vacuum Polarization around Eicheon †
(Peer reviewed; Journal article, 2023)Eicheon properties are discussed. It is shown that the eicheon surface allows setting a boundary condition for the vacuum polarization and obtaining a solution describing the dark matter tail in the Milky Way Galaxy. That ... -
Rotational Diffusion Processes in Segmented Polymers. Theory and Computer Simulations
(Dr.ingeniøravhandling, 0809-103X; 2002:139, Doctoral thesis, 2003)All biological macromolecules (DNA, RNA, proteins, polysaccarids) are polymers. These are extremely complex systems, with thousands or millions of atomic degrees of freedom. However, a range of important properties of such ... -
Rykk i kurveveksel ved analyse av spormålinger
(Master thesis, 2013)I følge teorien så går det laterale rykket mot uendelig når når et objekt i bevegelse går fra å følge en bane med en gitt radius $r$ til å følge en bane med en annen radius $r^{\star}$ momentant. Dette gjelder også innen ... -
Salt clogging during supercritical CO2 injection into a downscaled borehole model
(Journal article; Peer reviewed, 2019)Injection of CO2 into saline storage aquifers is often accompanied by drying of the formation water and salt precipitation. Subsequent salt clogging of a well bore and the near wellbore rock matrix may lead to injectivity ... -
Samanhengen mellom energi og volum for ein del bølgje-kraftverk
(Others, 1983) -
Sample cell for studying liquid interfaces with an in situ electric field using X-ray reflectivity and application to clay particles at oil-oil interfaces
(Journal article; Peer reviewed, 2018)Commissioning results of a liquid sample cell for X-ray reflectivity studies with an in situ applied electrical field are presented. The cell consists of a Plexiglas container with lateral Kapton windows for air–liquid and ... -
A sample cell for the study of enzyme-induced carbonate precipitation at the grain-scale and its implications for biocementation
(Journal article; Peer reviewed, 2021)Biocementation is commonly based on microbial-induced carbonate precipitation (MICP) or enzyme-induced carbonate precipitation (EICP), where biomineralization of CaCO3 in a granular medium is used to produce a sustainable, ... -
Satellite mapping of particle precipitation effects on the Antarctic middle atmosphere
(Master thesis, 2011)The aim of this thesis is to study the effects of particle precipitation on O3 and OH caused by a moderate geomagnetic storm in late July 2009. The basis is data retrieved over Antarctica from the Odin and Aura satellites ... -
Satellite peaks in the scattering of light from the two-dimensional randomly rough surface of a dielectric film on a planar metal surface
(Journal article; Peer reviewed, 2012)A nonperturbative, purely numerical, solution of the reduced Rayleigh equation for the scattering of p- and s-polarized light from a dielectric film with a two-dimensional randomly rough surface deposited on a planar ... -
Scaffold-Free Engineering of Human Cartilage Implants
(Peer reviewed; Journal article, 2021)Abstract Objective. Despite new strategies in tissue engineering, cartilage repair remains a major challenge. Our aim is to treat patients with focal lesions of articular cartilage with autologous hyaline cartilage implants ... -
Scalable Breast Cancer Simulations - A Stochastic, Hybrid Cellular Automaton Model for Precision Medicine
(Master thesis, 2023)Matematisk modellering og simulering er en lovende tilnærming til persontilpasset kreftmedisin. Å sette sammen diskrete celle-baserte modeller med kontinuerlige modeller til en hybrid, cellulær automata (CA) er en kraftfull ...