Browsing Institutt for fysikk by Title
Now showing items 404-423 of 2680
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Communities in a large social network: visualization and analysis
(Master thesis, 2009)Communities have been a hot topic in complex network research the last years. Several algorithms for detecting communities have been developed, and in this thesis we use the sequential clique percolation algorithm to detect ... -
Compact Diode-pumped Dispersion-managed SESAM-mode-locked Ho:fiber Laser
(Chapter, 2016)We demonstrate for the first time a compact mode-locked holmium fiber laser diode-pumped at 1150 nm. The laser was operated in the dispersion-managed dissipative-soliton regime and provided 3.7 nJ pulse energy at 7.8 MHz PRF -
Compact Stars
(Master thesis, 2017)In this thesis we study the mass-radius and pressure-radius relations of white dwarfs and neutron stars. We derive the pressure and energy density in a non-interacting Fermi gas at $T=0$, and construct several different ... -
A Comparative Analysis of Orthotopic and Subcutaneous Pancreatic Tumour Models: Tumour Microenvironment and Drug Delivery
(Peer reviewed; Journal article, 2023)Pancreatic ductal adenocarcinoma (PDAC) remains a challenging malignancy, mainly due to its resistance to chemotherapy and its complex tumour microenvironment characterised by stromal desmoplasia. There is a need for new ... -
A comparative biodistribution study of polymeric and lipid-based nanoparticles
(Peer reviewed; Journal article, 2022)Biodistribution of nanoencapsulated bioactive compounds is primarily determined by the size, shape, chemical composition and surface properties of the encapsulating nanoparticle, and, thus, less dependent on the physicochemical ... -
Comparative Study of CdZnTe Substrates Prepared by Different Methods
(Master thesis, 2017)In this study, three different CdZnTe (CZT) substrates were characterised for surface impurity contamination, particles, and defects. The substrates were examined both as-received and after surface pre-growth preparation. ... -
Comparing an Analytical Cascade Spectrum of High Energy Gamma Rays to those found in a Monte Carlo simulation
(Master thesis, 2014)In this thesis we consider the analytical model for electromagnetic cascades initiated by very high energy gamma rays due to Berezinskii. We compare the analytical prediction that the spectral energy distribution is described ... -
Comparing Automatic Treatment Planning with Helical Tomotherapy and VMAT for Locally Advanced Cervical Cancer
(Master thesis, 2023)Hensikt: Dette prosjektet hadde til hensikt å anvende helikal tomoterapi (HT) i et automatisk skript for behandlingsplanlegging brukt i klinikken på St. Olavs Hospital for planlegging med volumetric modulated arc therapy ... -
Comparing intergranular corrosion in Al‐Mg‐Si‐Cu alloys with and without α‐Al(Fe,Mn,Cu)Si particles
(Peer reviewed; Journal article, 2020)In this study, a model alloy without Fe and Mn additions, is compared with a commercial AA6005 alloy to further understand how the α‐Al(Fe,Mn,Cu)Si particles affect intergranular corrosion (IGC) behaviour. Both alloys were ... -
Comparing laboratory and field samples of lime-cement improved Norwegian clay
(Journal article; Peer reviewed, 2022) -
Comparing the caveolae mediated endocytosis of two DNA-chitosan polyplexes
(Master thesis, 2011)Understanding intracellular processing of gene vectors will help to improve vector design in gene therapy. Chitosan nanoparticles have been previously identied as safe and non toxic gene vector. Linear chitosan oligomer ... -
Comparison of Compressive Stress-Relaxation Behavior in Osteoarthritic (ICRS Graded) Human Articular Cartilage
(Journal article; Peer reviewed, 2018)Osteoarthritis (OA) is a common joint disorder found mostly in elderly people. The role of mechanical behavior in the progression of OA is complex and remains unclear. The stress-relaxation behavior of human articular ... -
Comparison of Dose Distributions resulting from IMRT and VMAT, and Assessment of MLC Leaf Positioning Errors
(Master thesis, 2013)Intensity-modulated radiotherapy (IMRT) is a radiation technique used in the treatment of head-and-neck cancer patients. IMRT results in a dose distribution which conforms to the tumor volume(s), and therefore sparing ... -
A comparison of Eulerian and Lagrangian methods for vertical particle transport in the water column
(Journal article, 2023)A common task in oceanography is to model the vertical movement of particles such as microplastics, nanoparticles, mineral particles, gas bubbles, oil droplets, fish eggs, plankton, or algae. In some cases, the distribution ... -
Comparison of Intravoxel incoherent motion imaging and multiecho dynamic contrast-based MRI in rectal cancer
(Journal article; Peer reviewed, 2019)Background Dynamic contrast‐based MRI and intravoxel incoherent motion imaging (IVIM) MRI are both methods showing promise as diagnostic and prognostic tools in rectal cancer. Both methods aim at measuring perfusion‐related ... -
A comparison of lab-scale free rotating wind turbines and actuator disks
(Peer reviewed; Journal article, 2021)Planar particle image velocimetry was conducted upstream and in the near-wake of a lab-scale free-rotating wind turbine model and compared to several actuator disks with the same dimensions. The Reynolds number of the ... -
Comparison of mesospheric winds from a high-altitude meteorological analysis system and meteor radar observations during the boreal winters of 2009-2010 and 2012-2013
(Journal article; Peer reviewed, 2017)We present a study of horizontal winds in the mesosphere and lower thermosphere (MLT) during the boreal winters of 2009–2010 and 2012–2013 produced with a new high-altitude numerical weather prediction (NWP) system. This ... -
A comparison of methods for fully automatic segmentation of tumors and involved nodes in PET/CT of head and neck cancers
(Peer reviewed; Journal article, 2021)Target volume delineation is a vital but time-consuming and challenging part of radiotherapy, where the goal is to deliver sufficient dose to the target while reducing risks of side effects. For head and neck cancer (HNC) ... -
Comparison of optical response from DFT random phase approximation and a low-energy effective model: Strained phosphorene
(Peer reviewed; Journal article, 2021)The engineering of the optical response of materials is a paradigm that demands microscopic-level accuracy and reliable predictive theoretical tools. Here we compare and contrast the dispersive permittivity tensor, using ... -
Comparison of two diffusion weighted MR protocols for detecting Differences in Microvasculature in chronic Pancreatitis and Pancreas Cancer
(Master thesis, 2016)Pancreatic cancer is a type of cancer with high mortality. Unspecific, or the absence of, symptoms result in late diagnosis, which is fatal when the only curable treatment is surgical removal of the tumor. Differentiating ...