Browsing Publikasjoner fra CRIStin - NTNU by Title
Now showing items 12970-12989 of 37304
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Extreme Levels of Ocean Acidification Restructure the Plankton Community and Biogeochemistry of a Temperate Coastal Ecosystem: A Mesocosm Study
(Peer reviewed; Journal article, 2021)The oceans’ uptake of anthropogenic carbon dioxide (CO2) decreases seawater pH and alters the inorganic carbon speciation – summarized in the term ocean acidification (OA). Already today, coastal regions experience episodic ... -
Extreme loads analysis of a site-specific semi-submersible type wind turbine
(Peer reviewed; Journal article, 2020)As a vital key part of the modern offshore wind energy industry, floating offshore wind turbines (FOWT) are built to generate green renewable energy. Robust prediction of extreme loads during FOWT operation is an important ... -
Extreme low temperature tolerance in woody plants
(Journal article; Peer reviewed, 2015)Woody plants in boreal to arctic environments and high mountains survive prolonged exposure to temperatures below -40°C and minimum temperatures below -60°C, and laboratory tests show that many of these species can also ... -
Extreme original data yield extreme decline effects
(Peer reviewed; Journal article, 2023)Our meta-analysis showing a dramatic decline effect in ocean acidification (OA) studies on fish behavior [1] was criticized and reanalyzed by Dr. Munday [2]. After applying changes to the dataset in a seemingly biased ... -
Extreme response estimation of offshore wind turbines with an extended contour-line method
(Journal article; Peer reviewed, 2018)The contour-line method is a simplified approach for finding the long-term extreme values by a small number of short-term analyses. It is assumed the response with a return period of T years occurs during a sea-state with ... -
Extreme responses and associated uncertainties for a long end-anchored floating bridge
(Peer reviewed; Journal article, 2020)Very-long floating bridges represent an innovative marine structure for crossing wide and deep fjords. During the design of a floating bridge, extreme structural responses at a specified probability of exceedance are ... -
Extreme riser experimental loads caused by sea currents in the Gulf of Eilat
(Peer reviewed; Journal article, 2022)Risers are widely used in offshore industry and are subjected to dynamic environmental loads. Robust prediction of extreme riser external loading under the action of sea currents and subsequently VIV (vortex-induced ... -
Extreme temperature and precipitation response to solar dimming and stratospheric aerosol geoengineering
(Journal article; Peer reviewed, 2018)We examine extreme temperature and precipitation under two potential geoengineering methods forming part of the Geoengineering Model Intercomparison Project (GeoMIP). The solar dimming experiment G1 is designed to completely ... -
Extreme Value Estimation of Beaufort Sea Ice Dynamics Driven by Global Wind Effects
(Journal article; Peer reviewed, 2022) -
Extreme Value Estimation of Mooring Loads Based on Station-Keeping Trials in Ice
(OMAE2020-18172, Chapter; Peer reviewed, 2020)he purpose of this work is to perform an extreme value estimation of the mooring loads associated with station-keeping of a ship operating in ice. In general, the design of mooring lines is based on estimation of the extreme ... -
Extreme value prediction with modified Enhanced Monte Carlo method based on tail index correction
(Peer reviewed; Journal article, 2023)As one of the main branches of extreme statistics, extreme value theory is widely used in marine engineering. Due to its special application in real ocean environmental states, the scale of the obtained monitoring data is ... -
Extreme values for Sn(σ,t) near the critical line
(Journal article; Peer reviewed, 2019)Let S(σ, t) =1πargζ(σ+it)be the argument of the Riemann zeta function at the point σ+itof the critical strip. Fo r n ≥1and t >0we defineSn(σ, t)=t∫0Sn−1(σ, τ)dτ+δn,σ,where δn,σis a specific constant depending on σand n. ... -
Extreme values of the Riemann zeta function and its argument
(Journal article; Peer reviewed, 2018)We combine our version of the resonance method with certain convolution formulas for ζ(s) and logζ(s) . This leads to a new Ω result for |ζ(1/2+it)| : The maximum of |ζ(1/2+it)| on the interval 1≤t≤T is at ... -
Extreme Wave Generation, Breaking and Impact Simulations With REEF3D
(Chapter, 2017)An accurate description of extreme waves is necessary in order to estimate maximum wave forces on offshore structures. On several occasions freak waves have been observed in the past, some causing severe damage. In order ... -
Extreme Wave Generation, Breaking, and Impact Simulations Using Wave Packets in REEF3D
(Journal article; Peer reviewed, 2019)On several occasions, freak waves have been observed in the past, some causing severe damage. In order to model such extreme wave conditions, one possibility is to use focused waves of first- or second-order based on ... -
Extremely low thermal conductivity and high thermoelectric performance in liquid-like Cu2Se1-xSx polymorphic materials
(Journal article, 2017)Recently, copper chalcogenides Cu2−xδ (δ = S, Se, Te) have attracted great attention due to their exceptional thermal and electrical transport properties. Besides these binary Cu2−xδ compounds, the ternary Cu2−xδ solid ... -
Extremum seeking for real-time optimal drilling control
(Peer reviewed; Journal article, 2019)This paper demonstrate the feasibility and illustrates some challenges of applying extremum seeking control to online optimization of the drilling process. Specifically, we consider the problem of finding the hook-load ... -
Extremum-Seeking Control for Harmonic Mitigation in Electrical Grids of Marine Vessels
(Journal article; Peer reviewed, 2019)This paper focuses on the minimization of the harmonic distortion in multibus electrical grids of marine vessels using a single active power filter. An active power filter is commonly used for local harmonic mitigation. ... -
Extremum-seeking control for steady-state performance optimization of nonlinear plants with time-varying steady-state outputs
(Journal article; Peer reviewed, 2018)Extremum-seeking control is a useful tool for the steady-state performance optimization of plants for which the dynamics and disturbance situation can be unknown. The case when steady-state plant outputs are constant ... -
Extrinsic calibration for motion estimation using unit quaternions and particle filtering
(Peer reviewed; Journal article, 2020)This paper presents a method for calibration of the extrinsic parameters of a sensor system that combines a camera with an inertial measurement unit (IMU) to estimate the pendulum motion of a crane payload. The camera ...