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    • Optical measurement of tissue perfusion changes as an alternative to electrocardiography for heart rate monitoring in Atlantic salmon (Salmo salar) 

      Svendsen, Eirik; Økland, Finn; Føre, Martin; Randeberg, Lise Lyngsnes; Finstad, Bengt; Olsen, Rolf Erik; Alfredsen, Jo Arve (Peer reviewed; Journal article, 2021)
      Background: Welfare challenges in salmon farming highlights the need to improve understanding of the fish’s response to its environment and rearing operations. This can be achieved by monitoring physiological responses ...

    • Optimal Force Allocation for Overconstrained Cable-Driven Parallel Robots: Continuously Differentiable Solutions With Assessment of Computational Efficiency 

      Ueland, Einar Skiftestad; Sauder, Thomas Michel; Skjetne, Roger (Peer reviewed; Journal article, 2020)
      In this article, we present a novel method for force allocation for overconstrained cable-driven parallel robot setups that guarantees continuously differentiable cable forces and allows for small penalized errors in the ...

    • Optimal ship lifetime fuel and power system selection 

      Lagemann, Benjamin; Lindstad, Elizabeth; Fagerholt, Kjetil; Rialland, Agathe Isabelle; Erikstad, Stein Ove (Peer reviewed; Journal article, 2021)
      Alternative fuels and fuel-flexible ships are often seen as promising solutions for achieving significant greenhouse gas reductions in shipping. We formulate the selection of alternative fuels and corresponding ship power ...

    • Optimization in offshore supply vessel planning 

      Halvorsen-Weare, Elin Espeland; Fagerholt, Kjetil (Journal article; Peer reviewed, 2016)
      This paper considers the offshore supply vessel (OSV) planning problem, which consists of determining an optimal fleet size and mix of OSVs as well as their weekly routes and schedules for servicing offshore oil and gas ...

    • Optimization of a Calcium-Based Treatment Method for Jellyfish to Design Food for the Future 

      Ramires, Francesca Anna; De Domenico, Stefania; Migoni, Danilo; Fanizzi, Francesco Paolo; Angel, Dror L.; Slizyte, Rasa; Klun, Katja; Bleve, Gianluca; Leone, Antonella (Peer reviewed; Journal article, 2022)
      Edible jellyfish are a traditional Southeast Asian food, usually prepared as a rehydrated product using a salt and alum mixture, whereas they are uncommon in Western Countries and considered as a novel food in Europe. Here, ...

    • Optimization-based motion planning for trawling 

      Haugen, Joakim; Imsland, Lars Struen (Journal article; Peer reviewed, 2018-10-03)
      This work presents an optimization-based motion planning system for trawling operations. The formulation makes use of simplistic physical descriptions of the vessel and fishing gear together with catch dynamics of sweeping ...

    • Optimizing Jack-up vessel strategies for maintaining offshore wind farms 

      Stålhane, Magnus; Christiansen, Marielle; Kirkeby, Odin; Mikkelsen, Andreas Jebsen (Journal article; Peer reviewed, 2017-10)
      In this paper we present a new two-stage stochastic mathematical programming model that determines the optimal jack-up vessel strategy for an offshore wind farm. Given an offshore wind farm site, and distance to shore the ...

    • Optimizing size selectivity and catch patterns for hake (Merluccius merluccius) and blue whiting (Micromesistius poutassou) by combining square mesh panel and codend designs 

      Cuende, Elsa; Sistiaga, Manu; Herrmann, Bent; Arregi, Luis (Peer reviewed; Journal article, 2022)
      Gear modifications in fisheries are usually implemented to obtain catch patterns that meet management objectives. In the Basque bottom trawl fishery, gear regulations include the use of a square mesh panel (SMP) placed at ...

    • Organic additive release from plastic to seawater is lower under deep-sea conditions 

      Fauvelle, Vincent; Garel, Marc; Tamburini, Christian; Nerini, David; Castro-Jiménez, Javier; Schmidt, Natascha; Paluselli, Andrea; Fahs, Armand; Papillon, Laure; Booth, Andy; Sempéré, Richard (Peer reviewed; Journal article, 2021)
      Plastic garbage patches at the ocean surface are symptomatic of a wider pollution affecting the whole marine environment. Sinking of plastic debris increasingly appears to be an important process in the global fate of ...

    • Organic chemicals associated with rubber are more toxic to marine algae and bacteria than those of thermoplastics 

      Sørensen, Lisbet; Gomes, Tania; Igartua, Amaia; Lyngstad, Inger Larsen; Almeida, Ana Catarina; Wagner, Martin; Booth, Andy (Journal article; Peer reviewed, 2023)
      The current study investigated the chemical complexity of fifty plastic (36) and elastomer/rubber (14) methanol extracts from consumer products, focusing on the association with toxicity in two screening assays (bacteria ...

    • Organisational safety indicators in aquaculture – a preliminary study 

      Holmen, Ingunn Marie; Utne, Ingrid Bouwer; Haugen, Stein (Chapter, 2017)
      The aquaculture industry has since the 70’s grown to become one of the most important industries in Norway. A safety challenge for the Norwegian fish farming companies is escape of salmon. During the last decade, the main ...

    • Outcomes From a Study of Validation of Ship Specific Models for Shiphandling Simulator 

      Berg, Tor Einar; Selvik, Ørjan (ASME Proceedings | Ocean Engineering;OMAE2017-61400, Chapter, 2017-06-25)
      This paper presents some outcomes from a four years (2013 – 2016) long research project investigating validation of ship specific simulation models. In contrast to the other initiatives such as SIMMAN 2008 [1] and SIMMAN ...

    • Outcomes of the DeepWind conceptual design 

      Paulsen, Uwe S.; Borg, Michael; Madsen, Helge Aa.; Pedersen, Troels Friis; Hattel, Jesper; Ritchie, Ewen; Ferreira, C. Simoa; Svendsen, Harald; Berthelsen, Petter Andreas; Smadja, Charles (Journal article, 2015)
      DeepWind has been presented as a novel floating offshore wind turbine concept with cost reduction potentials. Twelve international partners developed a Darrieus type floating turbine with new materials and technologies for ...

    • Ova lipid profiling and egg quality in wild and captive lumpfish, Cyclopterus lumpus (Linnaeus, 1758) 

      Hansen, Bjørn Henrik; Kjørsvik, Elin; Malzahn, Arne; Sarno, Antonio; Kulild, Ole Martin; Farkas, Julia; Nordtug, Trond; Rye, Rebecca; Kvæstad, Bjarne; Lein, Ingrid; Hagemann, Andreas (Peer reviewed; Journal article, 2022)
      Lumpfish (Cyclopterus lumpus) serves an important role as cleaner fish for removing salmon lice in salmon aquaculture. For this use, cultivated lumpfish are preferred over wild-caught fish to avoid overexploitation of ...

    • Overexploitation, Recovery, and Warming of the Barents Sea Ecosystem During 1950–2013 

      Pedersen, Torstein; Mikkelsen, Nina; Lindstrøm, Ulf; Renaud, Paul Eric; Nascimento, Marcela C.; Blanchet, Marie-Anne; Ellingsen, Ingrid H.; Jørgensen, Lis L.; Blanchet, Hugues (Peer reviewed; Journal article, 2021)
      The Barents Sea (BS) is a high-latitude shelf ecosystem with important fisheries, high and historically variable harvesting pressure, and ongoing high variability in climatic conditions. To quantify carbon flow pathways ...

    • Overpumping av makrell (II) Effekt pa fangstkvalitet 

      Aursand, Ida Grong; Digre, Hanne; Schei, Marte (SINTEF Fiskeri og havbruk;A25816, Research report, 2014-01-27)
      Prosjektets hovedmål er å klarlegge hvorvidt det kan registreres forskjeller i makrellens kvalitet når den er pumpet direkte om bord i fangstfartøyet og når den er pumpet til et annet fartøy (overpumping). Kvaliteten på ...

    • Overpumping av makrell (Ill) Effekt pa fangstkvalitet, resultater fra tokt 2014 

      Digre, Hanne; Tveit, Guro Møen; Solvang-Garten, Torfinn; Eilertsen, Aleksander; Schei, Marte (SINTEF Fiskeri og havbruk;A26559, Research report, 2014-12-18)
      Prosjektets hovedmål er å klarlegge hvorvidt det kan registreres forskjeller i makrellens kvalitet når den er pumpet direkte om bord i fangstfartøyet og når den er pumpet til et annet fartøy (overpumping). Dette er 3. ...

    • Overpumping av makrell - Effekt på fangstkvalitet - Sammendrag av resultater fra tokt gjennomført i 2012, 2013 og 2014 

      Tveit, Guro Møen; Digre, Hanne; Aursand, Ida Grong; Solvang-Garten, Torfinn; Eilertsen, Aleksander; Schei, Marte (SINTEF Fiskeri og Havbruk;A26694, Research report, 2015-02-10)
      Prosjektets hovedmål er å klarlegge hvorvidt det kan registreres forskjeller i makrellens kvalitet når den er pumpet direkte om bord i fangstfartøyet og når den er pumpet til et an·net fartøy (overpumping) etter at pumping ...

    • Overpumping av makrell Effekt på fangstkvalitet 

      Digre, Hanne; Aursand, Ida Grong (SINTEF Fiskeri og havbruk rapporter;A23827, Research report, 2013-01-14)
      Prosjektets hovedmål er å klarlegge hvorvidt det kan registreres forskjeller i makrellens kvalitet når den er pumpet direkte om bord i fangstfartøyet og når den er pumpet til et annet fartøy (overpumping). Resultatene viser ...

    • Oversikt over påvirkningsfaktorer for produksjonsformers bærekraft - for vurdering av påvirkning på klima, natur og miljø, samt sosial og økonomisk bærekraft 

      Slette, Hans Tobias; Olsen, Marit Schei; Misund, Bård; Tveterås, Ragnar; Strand, Andrea Viken; Wetterwald, Vibeke Emilsen; Misund, Andreas; Osmundsen, Tonje; Johansen, Ellie (SINTEF Ocean rapporter;2023:01035 A, Research report, 2023-09-29)
      Denne rapporten gir en oversikt over påvirkningsfaktorer som kan beskrive produksjonsformers påvirkning på klima, natur og miljø, samt deres sosiale og økonomiske bærekraft. Kunnskapsstatus for påvirkningsfaktorer blir ...