Browsing Fysisk institutt by Title
Now showing items 1969-1988 of 3682
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(Doctoral thesis / Doktoravhandling, 2018)Denne avhandlingen bidrar til økt kunnskap om målinger av optiske egenskaper i halvledermaterialer gjennom å bruke en relativt ny og avansert målemetode. Denne målemetoden kan gi resultater med en ekstremt høy romlig ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract The ionosphere, Earth’s space environment, exhibits widespread turbulent structuring, or plasma irregularities, visualized by the auroral displays seen in Earth’s polar regions. Such plasma irregularities have ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)This paper demonstrates a variation on the classic Kundt's tube experiment for measuring the speed of sound. The speed of sound in air is measured using a smartphone and a cardboard tube, making the experiment very economical ...
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(Master thesis / Masteroppgave, 2021)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Particle-covered droplets are used in several fundamental studies and practical applications. For many applications, it is important to understand the mechanics of these droplets subjected to induced external stresses, ...
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(Master thesis / Masteroppgave, 2009)T-47D cells were gamma-irradiated at acute dose rates by a Co-60 source, and their low-dose response was studied by clonogenic assay. T-47D cells have previously been found to express low-dose hyper-radiosensitivity (HRS) ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Calcium carbonate cements have been synthesized by mixing amorphous calcium carbonate and vaterite powders with water to form a cement paste and study how mechanical strength is created during the setting reaction. In-situ ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)When a chain is released by one end from a container, it forms a striking arch extending well above the container. This phenomenon is caused by the famous Mould effect and is explained by an anomalous supply of momentum ...
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(Doctoral thesis / Doktoravhandling, 2011)The object of this thesis is to study the coupling of chemical and physical processes during rock weathering. Stresses which are produced due to chemical reactions can lead to fracture propagation which in turn increases ...
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(Book / Bok / PublishedVersion; Peer reviewed, 2021)I Norge har naturfagprestasjoner på ungdomstrinnet i lang tid ligget under de andre nordiske landene, og de falt i tillegg med 13 poeng fra 2015 til 2019, noe som tilsvarer omtrent et halvt års skolegang. Derfor handler ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Background: Atrophy of the medial temporal lobe (MTL) is a biological characteristic of Alzheimer’s disease (AD) and can be measured by segmentation of magnetic resonance images (MRI). Objective: To assess the clinical ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)Stereotactic Synchrotron Radiotherapy (SSRT) and Microbeam Radiation Therapy (MRT) are both novel approaches to treat brain tumor and potentially other tumors using synchrotron radiation. Although the techniques differ by ...
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Medium modification of the shape of small-radius jets in central Pb-Pb collisions at √sN-N-=2.76 TeV (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)The yield of charged particles opposite to a Z boson with large transverse momentum (pT) is measured in 260 pb−1 of pp and 1.7 nb−1 of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector ...
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(Master thesis / Masteroppgave, 2022)Celler med lav-dosis-hypersensitivitet bliver ikke arresteret i det såkaldt tidlige G2- kontrolpunkt, når de bestråles med doser mindre end en tærskelværdi, som er omkring 0.3 Gy for T-47D-celler. Det betyder at de celler, ...
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(Master thesis / Masteroppgave, 2012)Memory capacitance, or memcapacitance, is part of the relative new concept of memristive systems. These are resistive, capacitive and inductive systems where their properties are dependent on previous dynamics. The purpose ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)An oxygen-rich ZnO-reduced graphene oxide (rGO) thin film was synthesized using a photo-annealing technique from zinc precursor (ZnO)–graphene oxide (GO) sol–gel solution. X-ray diffraction (XRD) results show a clear ...
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(Master thesis / Masteroppgave, 2011)
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(Master thesis / Masteroppgave, 2012)
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(Master thesis / Masteroppgave, 2011)Denne masteroppgaven tar for seg bruk av gyromatriser for å forbedre nøyaktigheten til MEMS-gyroer. Det er utviklet en matematisk modell av vinkelhastighetsmålinger fra et enkelt gyroskop, og det er gjort forsøk på å få ...