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Watt-level Kerr-Lens Mode-Locked Cr:ZnS Laser at 2.4 μm
(Chapter, 2013)Power scaling of Kerr-lens mode-locked Cr:ZnS femtosecond oscillator allows reaching 1 W output power and pulse energies over 8 nJ. Soliton and chirped-pulse regimes result in 68 fs and 0.8-2 ps pulses, respectively. -
wav2vec2-based Speech Rating System for Children with Speech Sound Disorder
(Peer reviewed; Journal article, 2022)Speaking is a fundamental way of communication, developed at a young age. Unfortunately, some children with speech sound disorder struggle to acquire this skill, hindering their ability to communicate efficiently. Speech ... -
Wave and Current Effects on Floating Fish Farms
(Journal article; Peer reviewed, 2018)The paper is partly a review on hydrodynamic and structural aspects of fish farms. In addition, new numerical results are presented on the stochastic behavior of bending stresses in the floater of a realistic net cage in ... -
Wave conditions encountered by ships—A report from a larger shipping company based on ERA5
(Peer reviewed; Journal article, 2021)This study reports about the wave conditions encountered by the fleet of Maersk Line. Herein, wave conditions refer to integral wave parameters in terms of significant wave height, zero-upcrossing period, and wave direction ... -
Wave Conditions for Offshore Wind Turbine Foundations in Intermediate Water Depths
(Master thesis, 2012)In this thesis, the effects on regular waves when propagating from deep to shallow water have been investigated, assuming linear wave theory. The effects of shoaling, refraction, reflection and diffraction have been studied. ... -
Wave dispersion in moderate channel turbulence
(Peer reviewed; Journal article, 2023)We study channel turbulence by interpreting its vorticity as a random sea of ocean wave packet analogues. In particular, we investigate the ocean-like properties of vortical packets applying stochastic methods developed ... -
Wave disturbance rejection for monopile offshore wind turbines
(Journal article; Peer reviewed, 2019)The dimensions of offshore wind turbine (OWT) support structures are governed by fatigue considerations. For 6‐ to 10‐MW OWTs, wave loads are often dominating in terms of fatigue utilization. The present work proposes a ... -
Wave Energy Conversion: Direct Coupled Point Absorber in Heave with Induction Machine as Power Take Off
(Master thesis, 2007)In the area of offshore renewable, wave energy can give great contribution. There has been research for developing wave energy converters since the late eighteenth century when the first patent was applied for in 1799 [1], ... -
Wave Energy Conversion: Salter Duck Wave Energy Converter with Direct Electrical Power Conversion
(Master thesis, 2010)This master thesis describes the design, calculation, simulation and construction of a buoy shape called the Salter Duck with an internal direct electrical wave energy conversion system. The internal system consists of two ... -
Wave Energy Conversion: Simulation Verification and Linearization of Direct Drive Wave Energy Converter with Variable DC-link Voltage Control
(Master thesis, 2009)Lowering the cost of wave energy conversion is an essential task for it to succeed as a future energy resource. In this work a converter, assumed cheaper than the regular back to back converter setting, have been investigated ... -
Wave environment assessment at a Norwegian harbor for land-based aquaculture facilities using a combined numerical approach
(Master thesis, 2021)Numerical wave modeling of Norwegian coastal areas is challenging due to the strongly varying bathymetry, irregular coastline, and large domains of interest. Phase-averaged models provide an appealing solution due to their ... -
Wave Impact Forces on complex structures during lowering through the splash zone
(Master thesis, 2013)New oilfields are discovered further from land, at great depths and in harsh environments. Subsea developments of such fields are economical and preferred choice for operators today. One of the challenges is to process the ... -
Wave induced effects on floaters of aquaculture plants
(Doctoral Theses at NTNU, 1503-8181; 2010:20, Doctoral thesis, 2010)The main objective of this work is to study wave loads on floaters of fish farms. Several incidents of major fish escapes due to structural collapse of fish farms in harsh weather have motivated this study, as a step towards ... -
Wave induced effects on floaters of aquaculture plants
(Doctoral Theses at NTNU, 1503-8181; 2010:20, Doctoral thesis, 2010)The main objective of this work is to study wave loads on floaters of fish farms. Several incidents of major fish escapes due to structural collapse of fish farms in harsh weather have motivated this study, as a step towards ... -
Wave induced motions of two ships advancing on parallel course
(Doktoravhandlinger ved NTNU, 1503-8181; 64, Doctoral thesis, 2002)Under way replenishment between two ships is a critical operation, and accidents have been reported. Hydrodynamic interaction between the hulls may influence the forces and the motions of the vessels, and both manoeuvring ... -
Wave inhomogeneities in a wave basin of constant water depth
(Journal article; Peer reviewed, 2023)Experimental testing of large marine structures in hydrodynamic laboratories requires an accurate reproduction of waves over a large area of the basin. However, with a uniform motion of the wavemaker, wave interactions ... -
Wave load compensation in DP control systems
(Master thesis, 2022)Denne masteroppgaven presenterer alternative metoder for bølgelastkompensasjon i dynamiske posisjonering (DP) av marine fartøy, der stabile og robuste konvensjonelle kontrollere med tilbakekopling vanligvis brukes. Slike ... -
Wave load effect analysis of a floating bridge in a fjord considering inhomogeneous wave conditions
(Journal article; Peer reviewed, 2018)When designing a floating bridge crossing a deep and wide fjord, a homogeneous wave field is usually assumed for simplicity. However, waves in fjords are commonly inhomogeneous, and hence the mentioned design practice ... -
Wave loads on decks of offshore structures in random seas
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:163, Doctoral thesis, 2012)