Browsing SINTEF Ocean by Title
Now showing items 1377-1396 of 1414
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Vessel fleet analysis for maintenance operations at offshore wind farms
(Journal article; Peer reviewed, 2013)Performing maintenance operations at offshore wind farms involves one major challenge compared with the onshore counterpart: All maintenance personnel and spare parts need to be transported from an onshore port or offshore ... -
Vessel Fleet Optimization for Maintenance Operations at Offshore Wind Farms under Uncertainty
(Journal article; Peer reviewed, 2016-09)In this paper we consider the problem of determining the optimal fleet size and mix of vessels to support maintenance activities at offshore wind farms. A two-stage stochastic programming model is proposed where uncertainty ... -
Vessel routing and scheduling under uncertainty in the liquefied natural gas business
(Journal article; Peer reviewed, 2013)Liquefied natural gas (LNG) is natural gas transformed into liquid state for the purpose of transportation mainly by specially built LNG vessels. This paper considers a real-life LNG ship routing and scheduling problem ... -
Virkning av stampekjøl på kystfartøy - Stampedemping av kystfartøy ved hjelp av finner plassert i forskipet
(SINTEF Fiskeri og Havbruk;A23384, Research report, 2012)Stampedempning med finner - Kystfartøy som bygges under lengdebegrensinger kan oppleve det som kalles for ""Gyngestoleffekten"", der fartøyet stamper uforholdsmessig mye selv i relativt rolig sjø. Dette bevegelsesmønsteret ... -
Virtual Prototyping of Maritime Systems and Operations: Applications of Distributed Co-Simulations
(Journal article; Peer reviewed, 2017-12-08)In this work, we demonstrate the use of co-simulation technology in the maritime industry through four relevant examples of applications based on the outcome of the knowledge-building project Virtual Prototyping of Maritime ... -
Virtualization of food supply chains with the internet of things
(Volume 176;, Journal article, 2015)Internet technologies allow supply chains using virtualizations dynamically in operational management processes. This will improve support for food companies in dealing with perishable products, unpredictable supply ... -
Vision-based pose estimation for autonomous operations in aquacultural fish farms
(Peer reviewed; Journal article, 2021)There is a largely increasing demand for the usage of Unmanned Underwater Vehicles (UUVs) including Remotely Operated Vehicles (ROVs) for underwater aquaculture operations thereby minimizing the risks for diving accidents ... -
Visualizing Cyber Security Risks with Bow-Tie Diagrams
(Journal article; Peer reviewed, 2018-01-19)Safety and security risks are usually analyzed independently, by different people using different tools. Consequently, the system analyst may fail to realize cyber attacks as a contributing factor to safety impacts or, on ... -
Visund Sør condensate and Visund crude oil– Weathering properties and behaviour at sea - In relation to oil spill response - OC2020 A-110
(SINTEF Ocean rapporter;OC2020 A-110 - O, Research report, 2020-09-02)A weathering study has been conducted on Visund Sør condensate and Visund crude oil. The weathering study is based on a small-scale laboratory testing at 13 °C. The SINTEF Oil Weathering Model (OWM was used to predict the ... -
Vurdering av årsak til skade på not i forbindelse med rømmingshendelse i 2014
(SINTEF Fiskeri og Havbruk reports;A26872, Research report, 2015-04-13)Det er sannsynlig at skade på not skyldes at not har vært i kontakt med kjetting i hanefot. Modellforsøk og analyser viser at kontakt mellom not og hanefot med kjetting kan inntreffe innenfor dimensjonerende miljøbelastninger. ... -
Vurdering av forvitringsegenskapene til ulike Marine Gassoljer. Kriterier for fastsettelse av drivstoff kvalitet ut fra egenskaper ved et eventuelt utslipp
(SINTEF;STF80MK A06170, Research report, 2006-06-07)I forbindelse med at det skal etableres kriterier for regulering av drivstoffkvalitet ved seiling innenfor naturreservatene på Øst-Svalbard, har Kystverket bedt SINTEF om å gjøre noen vurderinger med hensyn på forvitring ... -
Vurdering av lakselusindusert villfiskdødelighet per produksjonsområde i 2016 og 2017. Rapport fra ekspertgrupper for vurdering av lusepåvirkning
(Research report, 2017)Ekspertgruppen ble i mars 2017 oppnevnt for ett år for å foreta en vurdering av lakselusindusert dødelighet på villfisk i 13 produksjonsområder i Norge. En foreløpig rapport basert på data fra 2016 ble levert i april 2017 ... -
Warm water treatment increased mortality risk in salmon
(Peer reviewed; Journal article, 2022)Thermal treatment is a controversial method to control sea lice in the Atlantic salmon farming industry. This study aimed to complement the growing evidence base to document the impact of thermal treatments on salmon ... -
Wastewater-aged silver nanoparticles in single and combined exposures with titanium dioxide affect the early development of the marine copepod Tisbe battagliai
(Peer reviewed; Journal article, 2020)In this study, the effects of aged Ag and TiO2 NPs, individually and as a mixture, in wastewater relative to their pristine counterparts on the development of the copepod nauplii (Tisbe battagliai) were investigated. NP ... -
Wave Drift Forces and Low Frequency Damping on the Exwave FPSO
(ASME Proceedings | Offshore Technology;OMAE2017-62540, Chapter, 2017-06-25)A method is followed in the present analysis to estimate realistic surge and sway wave drift force coefficients for the Exwave FPSO. Model test data is used to identify the difference frequency wave exciting force coefficients ... -
Wave Drift Forces and Low Frequency Damping on the Exwave Semi-Submersible
(ASME Proceedings | Offshore Technology;OMAE2017-62539, Chapter, 2017-06-25)The paper presents realistic horizontal wave drift force coefficients and low frequency damping coefficients for the Exwave semi-submersible under severe seastates. The analysis includes conditions with collinear waves and ... -
Wave response of closed flexible bags
(Journal article; Peer reviewed, 2017-05)Recent environmental considerations, as salmon lice, escape of farmed fish and release of nutrients, have prompted the aquaculture industry to consider the use of closed fish production systems. The use of such systems is ... -
Wave-Current Interaction Effects on Airgap Calculations
(ASME Proceedings | Offshore Technology;OMAE2017-62548, Chapter, 2017-06-25)The importance of wave-current interaction effects on the determination of mean drift forces on floating offshore structures is well documented. Wave-current interaction effects will also influence the first-order motions ... -
Waves and currents decrease the available space in a salmon cage
(Peer reviewed; Journal article, 2022)Due to increasing demand for salmon and environmental barriers preventing expansion in established sites, salmon farmers seek to move or expand their production to more exposed sites. In this study we investigate the effects ... -
Waves' numerical dispersion and damping due to discrete dispersion relation
(ASME Digital colletion;OMAE2014-23152,, Chapter, 2014-06)In linear Rankine panel method, the discrete linear dispersion relation is solved on a discrete free-surface to capture the free-surface waves generated due to wave-body interactions. Discretization introduces numerical ...