Browsing Institutt for fysikk by Title
Now showing items 444-463 of 2680
-
Computing Hyperbolic Lagrangian Coherent Structures in Three-Dimensional Flow Systems
(Master thesis, 2018)A generic flow system can be described as a system whose state depends on flowing streams of energy, material, or information. Traditional examples of such systems are the transport of properties such as pressure, temperature, ... -
Computing hyperbolic Lagrangian coherent structures in three-dimensional flows from their variational theory
(Master thesis, 2018)Lagrangian coherent structures (LCSs) are dynamic surfaces that shape the flow patterns in complex transport systems. Accurate identification of LCSs has applications in particle transport, including dissemination of oil ... -
A Concept for a Multipurpose Time-of-Flight Neutron Reflectometer at Compact Neutron Sources
(Journal article; Peer reviewed, 2024)The design of a time-of-flight neutron reflectometer proposed for the new generation of compact neutron sources is presented. The reflectometer offers the possibility to use spin-polarized neutrons. The reflectometer design ... -
Condensates and pressure of two-flavor chiral perturbation theory at nonzero isospin and temperature
(Peer reviewed; Journal article, 2021)We consider two-flavor chiral perturbation theory (χPT) at finite isospin chemical potential μI and finite temperature T . We calculate the effective potential and the quark and pion condensates as functions of T and μI ... -
Conditions for the Active Involvement of Teachers in a Design-Based Research Project
(Peer reviewed; Journal article, 2021)Design-based research (DBR) develops solutions in combination with research and has gained increasing popularity in educational research. This research approach involves close collaboration between researchers and ... -
Conductivity control via minimally invasive anti-Frenkel defects in a functional oxide
(Peer reviewed; Journal article, 2020)Utilizing quantum effects in complex oxides, such as magnetism, multiferroicity and superconductivity, requires atomic-level control of the material’s structure and composition. In contrast, the continuous conductivity ... -
Confocal reflectance microscopy and multiple particle tracking for the study of the gelation of biopolymers
(Journal article; Peer reviewed, 2018)The combination of confocal reflectance imaging (CRM) and simultaneous multiple particle tracking (MPT) with mean-square displacement (MSD) analysis is a new method for studying the gelation of biopolymers. In addition to ... -
Conformality loss and quantum criticality in topological Higgs electrodynamics in 2+1 dimensions
(Journal article; Peer reviewed, 2019)The electromagnetic response of topological insulators and superconductors is governed by a modified set of Maxwell equations that derive from a topological Chern-Simons (CS) term in the effective Lagrangian with coupling ... -
Connectivity and Sequences in the Zebrafish brain
(Master thesis, 2020)Nevral aktivitet i hjernen til zebrafisken er et biologisk system som er svært vanskelig å måle med høy grad av evnen for å reprodusere resultater. Dette er fordi stimuleringen av de ulike delene i hjernen kan variere i ... -
Connectome inference and cluster extraction from calcium imaging
(Master thesis, 2017)This is a study of calcium imaging recordings from the spontaneous activity in the habenula and telencephalon region in juvenile and dormant zebrafish. The zebrafish is a model organism that, with some genetic manipulation, ... -
Consistent regularization and renormalization in models with inhomogeneous phases
(Journal article; Peer reviewed, 2017)In many models in condensed matter and high-energy physics, one finds inhomogeneous phases at high density and low temperature. These phases are characterized by a spatially dependent condensate or order parameter. A proper ... -
Constrained Hydrogel swelling in Biological Sensors: A Finite Element Method Approach
(Master thesis, 2012)Material models has been developed for anionic and/or cationic hydrogels, with a simulation framework implemented in MATLAB and the finite element software ABAQUS. The geometry of the simulations is a hemispheroidal hydrogel, ... -
Constrained s-wave weak-coupling superconductivity in multiband superconductors
(Peer reviewed; Journal article, 2023)We consider superconductivity in a system with N Fermi surfaces, including intraband and interband effective electron-electron interactions. The effective interaction is described by an N × N matrix whose elements are ... -
Constraints from the EBL
(Journal article; Peer reviewed, 2011)High energy particles interacting with the extragalactic photon background initiate electromagnetic pair cascades. I discuss here the resulting constraints on UHECR models, the flux of cosmogenic neutrinos and the extragalactic ... -
Construction of a transport kernel for an ensemble Monte Carlo simulator
(Master thesis, 2009) -
Contact-free reversible switching of improper ferroelectric domains by electron and ion irradiation
(Peer reviewed; Journal article, 2021)Focused ion beam (FIB) and scanning electron microscopy (SEM) are used to reversibly switch improper ferroelectric domains in the hexagonal manganite ErMnO3. Surface charging is achieved by local ion (positive charging) ... -
Contact-free reversible switching of improper ferroelectric domains by electron and ion irradiation
(Peer reviewed; Journal article, 2021)Focused ion beam (FIB) and scanning electron microscopy (SEM) are used to reversibly switch improper ferroelectric domains in the hexagonal manganite ErMnO3. Surface charging is achieved by local ion (positive charging) ... -
Contact-mediated intracellular delivery of hydrophobic drugs from polymeric nanoparticles
(Journal article; Peer reviewed, 2014)Encapsulation of drugs in nanoparticles can enhance the accumulation of drugs in tumours, reduce toxicity toward healthy tissue, and improve pharmacokinetics compared to administration of free drug. To achieve efficient ... -
Continuous to intermittent flows in growing granular heaps
(Peer reviewed; Journal article, 2022)If a granular material is poured from above on a horizontal surface between two parallel, vertical plates, a sand heap grows in time. For small piles, the grains flow smoothly downhill, but after a critical pile size Xc, ... -
Continuous water adsorption states promoted by Ni2+ confined in a synthetic smectite
(Journal article, 2016)The water adsorption isotherms of Ni-fluorohectorite have been obtained from the relative humidity dependence of X-ray diffraction intensities, and continuous transitions between the stable hydration states were observed. ...