Nye registreringer

  • Conceptual System Dynamics and Agent-Based Modelling Simulation of Interorganisational Fairness in Food Value Chains: Research Agenda and Case Studies 

    McGarraghy, Seán; Olafsdottir, Gudrun; Kazakov, Rossen; Huber, Élise; Loveluck, William; Gudbrandsdottir, Ingunn Y.; Čechura, Lukáš; Esposito, Gianandrea; Samoggia, Antonella; Aubert, Pierre-Marie; Barling, David; Ðurić, Ivan; Jaghdani, Tinoush J.; Thakur, Maitri; Saviolidis, Nína M.; Bogason, Sigurdur G. (Peer reviewed; Journal article, 2022)
    System dynamics and agent-based simulation modelling approaches have a potential as tools to evaluate the impact of policy related decision making in food value chains. The context is that a food value chain involves flows ...
  • Model tests of a hydroelastic truncated floating bridge 

    Rodrigues, José Miguel; Hansen Viuff, Thomas; Økland, Ole David (Peer reviewed; Journal article, 2022)
    Literature on tank tests of floating bridges is extremely rare, while a very limited number of publications covering tests of other types of very large floating structures exist. Here, the authors share their experience ...
  • Ship-Shore Interaction: The Model in the Middle 

    Hagaseth, Marianne; Juhl, Jeppe S.; Rødseth, Ørnulf Jan; von Scherpenzeel, Ben; van der Wurff, Andreas Maria (Peer reviewed; Journal article, 2022)
    The complex picture of maritime transport involving more than 100 thousand ships, more than 8000 ports and a large number of stakeholders fulfilling different roles and being responsible for different processes means that ...
  • Levels of autonomy for ships 

    Rødseth, Ørnulf Jan; Wennersberg, Lars Andreas Lien; Nordahl, Håvard (Peer reviewed; Journal article, 2022)
    This paper gives a summary of previously published papers on the definition of autonomy for ships, how this relates to different crewing regimes, and the terminology to be used. A conclusion is that autonomy should be ...
  • The Importance of Documenting Autonomous Tests 

    Bellingmo, Pauline Røstum; Fjørtoft, Kay Endre; Jørgensen, Ulrik; Kvam, Per Erik; Bratbergsengen, Inger Lill; Gisbert, Jose Vicente Perello (Peer reviewed; Journal article, 2022)
    This paper presents how autonomous tests can be documented and why this is important. A test area in Norway, more specifically the Trondheimsfjorden Test Area for Autonomous Ships, is used as a pilot to conduct tests with ...
  • Offshore field experiments with in-situ burning of oil: Emissions and burn efficiency 

    Faksness, Liv-Guri; Leirvik, Frode; Taban, Ingrid C.; Engen, Frode; Jensen, Hans V.; Holbu, Jan Willie; Dolva, Hilde; Bråtveit, Magne (Peer reviewed; Journal article, 2021)
    In situ burning (ISB) is an oil spill response technique including ignition and burning to remove oil on the water surface. The technique rapidly and effectively removes large portions of the oil. However, the combustion ...
  • Greenhouse gas emissions of Norwegian seafoods: From comprehensive to simplified assessment 

    Ziegler, Friederike; Jafarzadeh, Sepideh; Hognes, Erik Skontorp; Winther, Ulf (Peer reviewed; Journal article, 2021)
    The seafood sector is facing difficulties to meet the increasing demand for product greenhouse gas emission (GHG) assessments. We quantified GHGs of important seafood products of Norway, the world's second largest seafood ...
  • 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 ...
  • Experimental verification of the elastic response in a numeric model of a composite propeller blade with bend twist deformation 

    Rokvam, Sondre Østli; Vedvik, Nils Petter; Mark, Lukas; Rømcke, Eivind; Ølnes, Jon; Savio, Luca; Echtermeyer, Andreas (Peer reviewed; Journal article, 2021)
    Adaptive composite propeller blades showing bend twist behaviour have received increasing interest from hydrodynamic and structural engineers. When exposed to periodic loading conditions, such propellers can be designed ...
  • Bycatch reduction in the deep-water shrimp (Pandalus borealis) trawl fishery by increasing codend mesh openness 

    Jacques, Nadine; Pettersen, Hermann; Cerbule, Kristine; Herrmann, Bent; Ingólfsson, Ólafur Arnar; Sistiaga, Manu Berrondo; Larsen, Roger B.; Brinkhof, Jesse; Grimaldo, Vela Eduardo; Brčić, Jure; Lilleng, Dagfinn (Peer reviewed; Journal article, 2021)
    In most trawl fisheries, drag forces tend to close the meshes in large areas of diamond mesh codends, negatively affecting their selective potential. In the Barents Sea deep-water shrimp (Pandalus borealis) trawl fishery, ...
  • Assessing cyber threats for storyless systems 

    Meland, Per Håkon; Nesheim, Dag Atle; Bernsmed, Karin; Sindre, Guttorm (Peer reviewed; Journal article, 2021)
    A proper assessment of potential cyber threats is vital for security decision-making. This becomes an even more challenging task when dealing with new system designs and industry sectors where there is little or no historical ...
  • Robust adaptive backstepping DP control of ROVs 

    Ohrem, Sveinung Johan; Amundsen, Herman Biørn; Caharija, Walter; Holden, Christian (Peer reviewed; Journal article, 2022)
    Dynamic positioning is an important control feature for an underwater remotely operated vehicle. This paper presents a nonlinear dynamic positioning controller suited for application to vehicles with model uncertainties, ...
  • 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 ...
  • Exposure to low environmental copper concentrations does not affect survival and development in Atlantic cod (Gadus morhua) early life stages 

    Farkas, Julia; Svendheim, Linn Hjelmeland; Jager, Tjalling; Ciesielski, Tomasz Maciej; Nordtug, Trond; Kvæstad, Bjarne; Hansen, Bjørn Henrik; Kristensen, Torstein; Altin, Dag; Olsvik, Pål Asgeir (Peer reviewed; Journal article, 2021)
    In this study we investigated potential impacts of Cu exposure at low, environmentally relevant, concentrations on early live stages of Atlantic cod (Gadus morhua). Cod embryos and larvae were exposed to 0.5 μg/L (low), ...
  • Assessment of random wave energy dissipation due to submerged aquatic plants in shallow water using deep water wave conditions 

    Myrhaug, Dag; Henry, Pierre-Yves T (Peer reviewed; Journal article, 2021)
    This article addresses the random wave energy dissipation due to submerged aquatic plants in shallow water based on deep water wave conditions including estimation of wave damping. The motivation is to provide a simple ...
  • Effect of wave-current interaction on a long fjord-crossing floating pontoon bridge 

    Dai, Jian; Abrahamsen, Bjørn Christian; Hansen Viuff, Thomas; Leira, Bernt Johan (Peer reviewed; Journal article, 2022)
    Fjord-crossing floating bridges are sophisticated structures subjected to complex environmental loadings including combined action of wave and current. However, the effect of wave-current action is often neglected in a ...
  • A Flexible Fully Nonlinear Potential Flow Model for Wave Propagation over the Complex Topography of the Norwegian Coast 

    Wang, Weizhi; Pakozdi, Csaba; Kamath, Arun; Fouques, Sebastien; Bihs, Hans (Peer reviewed; Journal article, 2022)
    Coastal wave propagation and transformation are complicated due to the significant variations of water depth and irregular coastlines, which are typically present at the Norwegian fjords. A potential flow model provides ...
  • Technological innovations promoting sustainable salmon (Salmo salar) aquaculture in Norway 

    Føre, Heidi Moe; Thorvaldsen, Trine; Osmundsen, Tonje Cecilie; Asche, Frank; Tveterås, Ragnar; Fagertun, Jan Tore; Bjelland, Hans Vanhauwaert (Peer reviewed; Journal article, 2022)
    While highly successful in terms of profitable seafood production, salmon (Salmo salar) aquaculture may also be a source of potential negative environmental externalities. In an attempt to address these challenges through ...
  • Time domain simulation of marine riser vortex-induced vibrations in three-dimensional currents 

    Kim, Sangwoo; Sævik, Svein; Wu, Jie; Leira, Bernt Johan (Peer reviewed; Journal article, 2022)
    One of the major uncertainties related to present Vortex-Induced Vibrations (VIV) prediction practice is related to the simplification of real multi-directional current profiles into equivalent uni-directional ones. This ...
  • Scale-dependent particle clustering in transitional wake flow 

    Shi, Zhaoyu; Jiang, Fengjian; Zhao, Lihao; Andersson, Helge Ingolf (Peer reviewed; Journal article, 2022)
    Dispersion and mixing of inertial point particles in the unsteady and three-dimensional wake of a circular cylinder at Re=200 are investigated via one-way coupled simulations. The presence of streamwise-oriented vortical ...

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