Browsing Institutt for fysikk by Title
Now showing items 1867-1886 of 2655
-
Quantitative 3D Imaging and Metrology Using Coherent X-ray Scattering
(Doctoral theses at NTNU;2017:300, Doctoral thesis, 2017)This thesis has focused on exploring methods of using coherent X-ray scattering at synchrotron sources. New imaging techniques using coherent X-ray scattering have been investigated, and it has been discussed how limitations ... -
Quantitative 3D X-ray Imaging of Densification, Delamination and Fracture in a Micro-Composite under Compression
(Journal article; Peer reviewed, 2015)Phase-contrast three-dimensional tomograms showing in unprecedented detail the mechanical response of a micro-composite subjected to a mechanical compression test are reported. The X-ray ptychography images reveal the ... -
Quantitative analysis of tumor heterogeneity based on magnetic resonance images
(Master thesis, 2019)Background: Solid tumors are commonly heterogeneous because they consist of cancer cells with different aggressiveness. In quantitative cancer imaging, such as magnetic resonance imaging (MRI), the heterogeneity will not ... -
Quantitative Analysis of Vascular Function in Malignant Tumours
(Master thesis, 2018)Sammendrag: Formålet med denne avhandlingen var å undersøke den vaskulære funksjonen i ondartede svulster ved hjelp av histologiske og immunohistokjemiske (IHC) snitt og se etter assosiasjoner med magnetresonanstomografi ... -
Quantitative analysis of {100} Al plate/lath- and Al rod-shaped precipitates in an aged Al-Cu-Mg-Si alloy using TEM
(Peer reviewed; Journal article, 2021)Precipitate parameters, such as length, diameter and thickness of rationally oriented {100}Al plate/lath-shaped and Al rod-shaped precipitates in an age-hardenable Al-Cu-MgSi alloy have been examined quantitatively. An ... -
Quantitative atomic force microscopy and light microscopy of hydrogels and cells
(Doctoral theses at NTNU;2016:343, Doctoral thesis, 2016)Quantitative biology is an interdisciplinary subject that combines biology, mathematics and physics. Intimate collaboration on a global scale between these disciplines results in a wide variety of tools and innovation in ... -
Quantitative characterization of articular cartilage using Mueller matrix imaging and multiphoton microscopy
(Journal article; Peer reviewed, 2011)The collagen meshwork in articular cartilage of chicken knee is characterized using Mueller matrix imaging and multiphoton microscopy. Direction and degree of dispersion of the collagen fibers in the superficial layer are ... -
Quantitative comparison of PET performance-Siemens Biograph mCT and mMR
(Peer reviewed; Journal article, 2016)Background: Integrated clinical whole-body PET/MR systems were introduced in2010. In order to bring this technology into clinical usage, it is of great importance to compare the performance with the well-established PET/CT. ... -
Quantitative Comparison of PET/MR and PET/CT for Imaging of Lymphoma Patients
(Master thesis, 2015)Positron emission tomography/computed tomography (PET/CT), a multimodality imaging tool, is today the golden standard in diagnosis, staging and response monitoring of lymphoma patients, while it is investigated if positron ... -
Quantitative Convergent Beam Electron Diffraction and Charge Density Studies
(Dr. ingeniøravhandling, 0809-103X; 2003:97, Doctoral thesis, 2003)Very accurate low-order structure factors have been measured in copper, magnesium and strontium titanate using quantitative convergent beam electron diffraction (QCBED). The charge density distribution in these materials ... -
Quantitative imaging for radiotherapy purposes
(Peer reviewed; Journal article, 2020)Quantitative imaging biomarkers show great potential for use in radiotherapy. Quantitative images based on microscopic tissue properties and tissue function can be used to improve contouring of the radiotherapy targets. ... -
Quantitative Polychromatic X-Ray Computed Tomography - Experiments and Simulations
(Master thesis, 2018)X-ray Computed Tomography (CT) is an extensively used technique conventionally utilizing either absorption-contrast or phase-contrast to non-destructively image the internal structures of objects. While CT instruments using ... -
Quantitative scanning transmission electron microscopy studies on heterostructured GaAs nanowires
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:369, Doctoral thesis, 2013)This thesis presents a quantitative high-angle annular dark eld scanning transmission electron microscopy (HAADF STEM) study on heterostructured GaAs-based nanowires (NWs). Quantitative HAADF STEM was employed to investigate ... -
Quantitative strain analysis of InAs/GaAs quantum dot materials
(Journal article; Peer reviewed, 2017)Geometric phase analysis has been applied to high resolution aberration corrected (scanning) transmission electron microscopy images of InAs/GaAs quantum dot (QD) materials. We show quantitatively how the lattice mismatch ... -
Quantitative studies of clustering and precipitation in Al-Mg-Si(-Cu) alloys
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:212, Doctoral thesis, 2011)In the present work, the clustering and precipitation reactions in age hardenable Al-Mg- Si(-Cu) (6xxx) alloys have been studied by atom probe tomography (APT), transmission electron microscopy (TEM) related methods and ... -
Quantitative Susceptibility Mapping Reproducibility with 7T Ultra-High Field MRI
(Master thesis, 2022)Kvantitativ susceptibilitet (QSM) har blitt foreslått som en lovende metode for ikke-invasiv in vivo bestemmelse av romlig fordeling av magnetisk susceptibilitet. Magnetisk susceptibilitet er en karakteristisk egenskap ved ... -
Quantum Chromodynamics in Strong Magnetic Fields with Isospin Chemical Potential
(Master thesis, 2021)I denne avhandlingen studerer vi kvantekromodynamikk (QCD) med to kvarktyper ved lave energier. Vi inkluderer et eksternt magnetfelt og et endelig isospinn kjemisk potensial. Under disse forholdene vil grunntilstanden til ... -
Quantum corrections to slow-roll inflation: scalar and tensor modes
(Peer reviewed; Journal article, 2021)Inflation is often described through the dynamics of a scalar field, slow-rolling in a suitable potential. Ultimately, this inflaton must be identified with the expectation value of a quantum field, evolving in a quantum ... -
Quantum Error Mitigation for near-future Quantum Computation
(Master thesis, 2021)Kvantedatamaskiner har potensiale til å kunne løse spesifikke beregningsproblemer eksponentielt raskere enn noen klassisk datamaskin er i stand til. I nærliggende fremtid er derimot kvantedatamaskiner begrensede når det ... -
Quantum fluctuations in the order parameter of quantum skyrmion crystals
(Peer reviewed; Journal article, 2022)Traditionally, skyrmions are treated as continuum magnetic textures of classical spins with a well-defined topological skyrmion number. Owing to their topological protection, skyrmions have attracted great interest as ...