Browsing Faculty of Science and Technology by Title
Now showing items 10247-10266 of 10773
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Uncertainty estimation in sound scattering measurements within an anechoic chamber
(Master thesis, 2022-01-07)Uncertainty was estimated for seven variable changes in sound scattering measurements in an anechoic chamber to explore their impact individually and compared to each other. These variables were change of loudspeaker, ... -
Uncertainty in twenty-first century projections of the Atlantic Meridional Overturning Circulation in CMIP3 and CMIP5 models
(Peer reviewed; Journal article, 2016-05-26)Uncertainty in the strength of the Atlantic Meridional Overturning Circulation (AMOC) is analyzed in the Coupled Model Intercomparison Project Phase 3 (CMIP3) and Phase 5 (CMIP5) projections for the twenty-first century; ... -
Uncertainty-aware spot rejection rate as quality metric for proton therapy using a digital tracking calorimeter
(Journal article; Peer reviewed, 2023)Objective. Proton therapy is highly sensitive to range uncertainties due to the nature of the dose deposition of charged particles. To ensure treatment quality, range verification methods can be used to verify that the ... -
Unclear associations between small pelagic fish and jellyfish in several major marine ecosystems
(Peer reviewed; Journal article, 2019-02-28)During the last 20 years, a series of studies has suggested trends of increasing jellyfish (Cnidaria and Ctenophora) biomass in several major ecosystems worldwide. Some of these systems have been heavily fished, causing a ... -
Unconditional uniqueness for the Benjamin-Ono equation
(Journal article, 2023)We study the unconditional uniqueness of solutions to the Benjamin–Ono equation with initial data in Hs, both on the real line and on the torus. We use the gauge transformation of Tao and two iterations of normal form ... -
Unconditionally stable Methods for Hamilton-Jacobi Equations
(Department of Applied Mathematics report, Research report, 2000-05) -
Uncovering Amino Acids Patterns At The Membrane-Binding Interfaces Of Peripheral Proteins
(Master thesis, 2020-07-04) -
Uncovering dynamic structures within cyclic attractors of asynchronous Boolean networks with spectral clustering
(Journal article; Peer reviewed, 2024)Boolean models provide an intuitive framework for the investigation of complex biological networks. Dynamics that implement asynchronous update rules, in particular, can help embody the complexity arising from non-deterministic ... -
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017
(Journal article; Peer reviewed, 2020)In April 2017, the first Ice Atmosphere Arctic Ocean Observing System (IAOOS) platform equipped with biogeochemical sensors was deployed near the North Pole. Over the next 8 months it meandered southward with the ice, ... -
Underlying event properties in pp collisions at √s = 13 TeV
(Journal article; Peer reviewed, 2020)This article reports measurements characterizing the Underlying Event (UE) associated with hard scatterings at midrapidity (|η| < 0.8) in pp collisions at √s = 13 TeV. The hard scatterings are identified by the leading ... -
Understanding climate change impacts on biome and plant distributions in the Andes: Challenges and opportunities
(Journal article; Peer reviewed, 2022)Aim: Climate change is expected to impact mountain biodiversity by shifting species ranges and the biomes they shape. The extent and regional variation in these impacts are still poorly understood, particularly in the ... -
Understanding differences in North Atlantic poleward ocean heat transport and its variability in global climate models
(Journal article; Peer reviewed, 2021)The ocean heat transport from the North Atlantic to the Barents Sea impacts the sea ice extent and the energy budget of the Arctic. The analyzed climate models from the fifth (CMIP5) and sixth Coupled Model Intercomparison ... -
Understanding learner behaviour in online courses with Bayesian modelling and time series characterisation
(Journal article; Peer reviewed, 2021)The intrinsic temporality of learning demands the adoption of methodologies capable of exploiting time-series information. In this study we leverage the sequence data framework and show how data-driven analysis of temporal ... -
Understanding of European Cold Extremes, Sudden Stratospheric Warming, and Siberian Snow Accumulation in the Winter of 2017/18
(Peer reviewed; Journal article, 2020)It is unclear whether the Eurasian snow plays a role in the tropospheric driving of sudden stratospheric warming (SSW). The major SSW event of February 2018 is analyzed using reanalysis datasets. Characterized by predominant ... -
Understanding the correlation between (g − 2) μ and μ → eγ in the MSSM
(Peer reviewed; Journal article, 2014-08)The supersymmetric contributions to the muon anomalous magnetic moment a μ and to the decay μ → eγ are given by very similar Feynman diagrams. Previous works reported correlations in specific scenarios, in particular if a ... -
Understanding the dynamics of recent Norwegian extreme weather events and their influence on energy production
(Master thesis, 2021-08-05)The growing frequency and severity of extreme weather events in the Northern Hemisphere has prompted a lot of research being done on their origin and physical mechanisms. Both simplified and complex approaches have been ... -
Understanding the occurrence and fate of microplastics in coastal Arctic ecosystems: The case of surface waters, sediments and walrus (Odobenus rosmarus)
(Journal article; Peer reviewed, 2021)The Arctic ecosystem receives contaminants transported through complex environmental pathways – such as atmospheric, riverine and oceanographic transport, as well as local infrastructure. A holistic approach is required ... -
Understanding the role of organic matter cycling for the spatio-temporal structure of PCBs in the North Sea
(Journal article; Peer reviewed, 2020)Using the North Sea as a case scenario, a combined three-dimensional hydrodynamic-biogeochemical-pollutant model was applied for simulating the seasonal variability of the distribution of hydrophobic chemical pollutants ... -
Undersøkelse av effekten av katalysatorer og støttematerialer på omdanningen av lignin til LtL-biooljer ved forskjellige betingelser
(Master thesis, 2014-12-19)Verdens petroleumsforbruk har skutt i været de siste tiårene, og man inser at ressursene holder på å gå tom. Dette har tvunget oss til å begynne å tenke på alternative måter å produsere energi og drivstoff på. Lignocellulosisk ...