Blar i Fakultet for naturvitenskap (NV) på tittel
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Radiation dose and image quality in CT - Comparison and evaluation of two different organ-based tube current modulation techniques and their impact on organ dose and image noise
(Master thesis, 2019)Bakgrunn: Computertomografi (CT) -undersøkingar er eit mykje brukt vertøy i medisinsk dignostikk, og bruken aukar. Denne auka har først til auka uro over stråledosen pasientar blir utsett for. Det er viktig å optimalisere ... -
Radiation dose and image quality in CT - Evaluation of how slice thickness, tube current modulation and reconstruction algorithms affect radiation dose and image noise
(Master thesis, 2018)Background: Helse Vest has currently standardized the computed tomography (CT) Thorax/Abdomen/Pelvis protocols in the region. One of the standardized parameters was a reduction of the reconstructed slice thickness from 5 ... -
Radiation fields and viscous cosmology - Friction in General Relativity
(Master thesis, 2015)Certain aspects of the Lorentz transformation, sometimes called beaming, aberration or transverse Doppler effect, induce viscosity-like effects on extended objects moving through radiation fields. In this thesis, these ... -
Radiative corrections to van der Waals interaction in fluids
(Master thesis, 2012)The van der Waals interaction energy is derived for a homogenous fluid of polarizable particles. Low-temperature corrections to the van der Waals interaction energy are computed numerically for three cases: Dilute media ... -
Radiative forcing geoengineering causes higher risk of wildfires and permafrost thawing over the Arctic regions
(Journal article; Peer reviewed, 2024)Radiative forcing geoengineering is discussed as an intermediate solution to partially offset greenhouse gas-driven warming by altering the Earth’s energy budget. Here we use an Earth System Model to analyse the response ... -
Radioaktivitet i mat fra utmark i Trøndelag med fokus på cesium-137.
(Bachelor thesis, 2021)April 2021 markerte 35 år siden ulykken ved kjernekraftverket i Tsjernobyl. Som en følge av ulykken kom det radioaktivt nedfall over deler av Norge, deriblant Trøndelag. Dette har ført til at myndighetene følger med på ... -
Radiological detection of nephrocalcinosis in farmed Atlantic salmon Salmo salar L.
(Journal article; Peer reviewed, 2022) -
Radiotherapeutic Limits of Acceptance for Errors in Synthetic CT Synthesised from MRI
(Master thesis, 2020)CT-skanninger, som resulterer i elektrontetthetskart eller massetetthetskart, er standard inndata for strålebehandlingplanleggingssystemer. Imidlertid gir MR overlegen bløtvevskontrast. I tilfeller der MR er nødvendig for ... -
Rainbow Trout (Oncorhynchus mykiss) as Source of Multifunctional Peptides with Antioxidant, ACE and DPP-IV Inhibitory Activities
(Peer reviewed; Journal article, 2023)The present study aimed at characterizing the possible biological activities of the multifunctional low molecular weight fractions (<3 kDa) peptides isolated from rainbow trout (Oncorhynchus mykiss) obtained by enzymatic ... -
Rainfall seasonality predicts the germination behaviour of a tropical dry-forest vine
(Journal article; Peer reviewed, 2019)Seed dormancy is considered to be an adaptive strategy in seasonal and/or unpredictable environments because it prevents germination during climatically favorable periods that are too short for seedling establishment. ... -
Rainfall seasonality predicts the germination behaviour of a tropical dry-forest vine
(Journal article; Peer reviewed, 2019)Seed dormancy is considered to be an adaptive strategy in seasonal and/or unpredictable environments because it prevents germination during climatically favorable periods that are too short for seedling establishment. ... -
Rakefisk: Studie av rakeprosessen for røye og ørret, med og uten tilsatt starterkultur
(Master thesis, 2013)Rakefisk er en del av en viktig tradisjon i Norge: preservering av råvarer. I dag er rakefisk også blitt en del av norsk matkultur, med egne festivaler og kåringer, og har stor økonomisk betydning. Den har gått fra å være ... -
Raman and Infrared spectroscopies and X-ray diffraction data on bupivacaine and ropivacaine complexed with 2-hydroxypropyl-beta-cyclodextrin
(Journal article; Peer reviewed, 2017)The data presented in this article are related to the research article entitled “Probing the dynamics of complexed local anesthetics via neutron scattering spectroscopy and DFT calculations (http://dx.doi.org/10.1016/j.i ... -
Raman Soliton Fiber Lasers Tunable Between 1.98 – 2.22 um
(Chapter, 2016)We report two compact diode-pumped mode-locked femtosecond thulium-doped silica-fiber-based MOPAs, operating in the Raman soliton regime with the tunability between 1.98-2.22 μm, including a 75-nJ, 21-MHz fiber laser and ... -
Raman spectroscopy of mackinawite FeS in anodic iron sulfide corrosion products
(Journal article; Peer reviewed, 2016)Raman spectroscopy in a confocal microscope was used to study electrochemically synthesized corrosion products from sour gas experiments. When exposed to oxygen-containing atmosphere, the initial mackinawite FeS corrosion ... -
A Raman-Structure Model for the Viscosity of SiO2- CaO-Al2O3 System
(Peer reviewed; Journal article, 2022)The relationship between structure and viscosity of molten slags is investigated using the Raman spectroscopy technique. To this end, a group of 20 synthetic slags in the SiO2-CaO-Al2O3 ternary system is considered. The ... -
Random angle grain boundary formation and evolution dynamics during Si directional solidification
(Journal article; Peer reviewed, 2019)The growth of multicrystalline silicon and the formation of a random angle grain boundary, as well as the dislocation generation and expansion is observed dynamically in situ, by Synchrotron X-ray imaging techniques. The ... -
Raney-platinum thin film electrodes for the catalysis of glucose in abiotically catalyzed micro-glucose fuel cells
(Journal article; Peer reviewed, 2019)Fuel cells capable of synthetic glucose catalysis have revolved around the implementation of abiotic catalysts that require extreme acid and alkaline environments. These are not compatible with implantable medical sensor ... -
Rapid carrier lifetime degradation and regeneration in high-performance multicrystalline silicon wafers
(Master thesis, 2020)Målet med denne masteroppgaven er å øke forståelsen av degradering i p-type høyytelse multikrystallinsk silisium (HPMC-Si) ved bruk av karakteriseringsteknikkene kvasi-likevektstilstand fotokonduktans (QSSPC) og ... -
Rapid Determination of Per- and Polyfluoroalkyl Substances (PFAS) in Harbour Porpoise Liver Tissue by HybridSPE®–UPLC®–MS/MS
(Journal article; Peer reviewed, 2021)A rapid hybrid solid phase extraction (HybridSPE®) protocol tailored to ultra-performance liquid chromatography–electrospray ionization tandem mass spectrometry (UPLC®–ESI–MS/MS) analysis was developed for the determination ...