Blar i NTNU Open på tittel
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Frequency-domain Method for Global Dynamic Response Analysis of a Semi-submersible Floating Wind Turbine
(Master thesis, 2018)The wind energy market is increasing. Developing offshore wind turbines has several advantages. Conventional time-domain methods in global dynamic response analysis are time-consuming. Inspired by this, the frequency-domain ... -
Frequency-domain Roll Motion Analysis of a Transportation Barge Using Stochastic Linearization of Viscous Roll Damping
(Master thesis, 2018)This thesis is proposed by DNV GL, and presents a comparative study of frequency-domain and time-domain analysis of the roll motion. The goal is to perform a roll motion analysis of a barge-cargo system considering linearized ... -
FREQUENT BOAT ACCIDENTS ON THE VOLTA LAKE OF GHANA: A Case Study of Tapa Abotoase in the Jasikan District of the Volta Region
(Master thesis, 2008)Boat accidents have become a matter of public concern during recent times as a result of its frequency in recording high fatalities on the Volta Lake of Ghana. This study sought to find out the main causes of this frequent ... -
Fresh and frozen stored fillets of Atlantic mackerel (Scomber scombrus)– effect on oxidation and sensory quality of canned mackerel fillets
(Chapter, 2016)Atlantic mackerel caught off the West Coast of Norway were filleted and frozen in 20 kg blocks at landing. The fillets were canned with tomato sauce when fresh and after 1, 3, 6, 9 and 12 months of frozen storage. The ... -
“Freshman’s week”: characteristics associated with participation and experiencing adverse effects
(Journal article; Peer reviewed, 2018)Background “Freshman’s week” (FW) is a Norwegian initiation ritual to higher education. Previous research has suggested that FW-participation is associated with better social adjustment to the student setting, as well as ... -
Freshwater Fish Community Responses to Climate Change and Invasive Species
(Doctoral theses at NTNU;2021:27, Doctoral thesis, 2021)Despite making up only a tiny proportion of the world’s aquatic surface area, freshwater ecosystems are home to a plethora of biodiversity, containing roughly 40% of all described fish species. Yet they’re also among the ... -
Freshwater plastispheres as a vector for foodborne bacteria and viruses
(Peer reviewed; Journal article, 2023)There is growing evidence that plastic particles can accumulate microorganisms that are pathogenic to humans or animals. In the current study, the composition of the plastispheres that accumulated on polypropylene (PP), ... -
Fresnel imaging of ferromagnetic domain wall motion using fast pixelated electron detector
(Master thesis, 2022)Magnetic imaging techniques are of great importance for the further development of magnetic materials to be used in promising applications for information storage and sensory devices. The main aim of this thesis was to ... -
Freznel zone in VTI and orthorhombic media
(Journal article; Peer reviewed, 2017)The reflecting zone in the subsurface insonified by the first quarter of a wavelength and the portion of the reflecting surface involved in these reflections is called the Fresnel zone or first Fresnel zone. The horizontal ... -
Fri flyt av sykler i Beijing
(Master thesis, 2019)I 2016 så vi en enorm vekst av stasjonsløse delingssykler i Kina. I løpet av bare noen måneder ble flere store byer dekt av fargerike sykler. Veksten var enorm, noe som har ført til at stasjonsløse delingssykler preger ... -
Fri og frank: Hvordan Martin Scorsese instruerer skuespillere
(Bachelor thesis, 2021)Denne oppgaven forsøker å avgrense Martin Scorseses personinstruksjonsstil. Den søker å oppdage hva som gjør hans instruksjon unik og hvorfor han er i stand til å vekke godt spill. Hans instruksjon anskueliggjøres blant ... -
Fri til å dra - Villig til å bli: Norske fremmedkrigere i den russisk-ukrainske krigen
(Master thesis, 2023)Denne masteroppgaven utforsker norske fremmedkrigere i den russisk-ukrainske krigen, og hva som gjør dem villige til å delta i krig. Oppgaven er et kvalitativt prosjekt som basert på dybdeintervjuer gir en innsikt i (1) ... -
FRICTION AND WEAR OF COATINGS FOR SUBSEA GATE VALVES OPERATING AT HIGH TEMPERATURE AND PRESSURE
(Doctoral thesis at NTNU;2016:161, Doctoral thesis, 2016)Gate valves for subsea oil and gas operation work under harsh conditions. Proper design ensures the valves functional integrity over the designed lifetime of the valve. The design of the valve includes material choice ... -
Friction Factor Model and Interpretation of Real Time Data
(Master thesis, 2013)The interest in torque and drag issues has over the last years increased when the complexity of wells drilled has become higher. The petroleum industry continually expands the extended reach drilling envelope, which forces ... -
Friction Factors in Oil Wells through Analysis of Hook Load
(Master thesis, 2014)As the easy oil and gas is gone, there is today a need for more complex wells in orderto extract the remaining hydrocarbons. Over recent decades, both inclination andlength of drilled wells have increased significantly. ... -
Friction Fluctuations of Gold Nanoparticles in the Superlubric Regime
(Journal article; Peer reviewed, 2018)Superlubricity, or alternatively termed structural (super)lubrictiy, is a concept where ultra-low friction is expected at the interface between sliding surfaces if these surfaces are incommensurate and thus unable to ... -
Friction Mechanisms by Carboxylic Acids in Aqueous Lubricants
(Journal article; Peer reviewed, 2018)Carboxylic acids are well known for their friction-reducing abilities driven by the formation of low-shear-strength films on the steel surface. However, understanding of the adsorption mechanisms especially in polar solvents ... -
Friction models for evaluating dynamic stresses in non-bonded flexible risers
(Journal article; Peer reviewed, 2017)This paper addresses friction models used for evaluating dynamic stresses in non-bonded flexible risers. A review of the most commonly used methods to model friction between layers in such structures was performed. Four ... -
Friction Models for Oscillating Flow in a U-tube
(Master thesis, 2014)The basic theory of friction in pipe flow was reviewed in the first part of this thesis. Using the results from this review, steady state friction relations were derived for laminar and turbulent pipe flow.Steady state ... -
Friction Reduction by using Nano-Fluids in Drilling
(Master thesis, 2014)The increasing requirements of drilling fluids in long extended reach wells desires for new solutions to solve torque and drag problems in the wellbore. Nanotechnology is an upcoming technology development, which is already ...