Browsing SINTEF Open by Title

Now showing items 6559-6578 of 10124

    • Online Parameter Adjustment Method for Arm Voltage Estimation of the Modular Multilevel Converter 

      Taffese, Abel Assegid; de Jong, Erik; D'Arco, Salvatore; Tedeschi, Elisabetta (Journal article; Peer reviewed, 2019)
      The method used to calculate insertion indexes plays an important role in determining the overall performance of the Modular Multilevel Converter (MMC). Direct voltage control, which is the simplest option, results in a ...

    • Onset of water accumulation in oil/water pipe flow – experiments and modelling with LedaFlow 

      Kjølaas, Jørn; Wolden, Marita (Peer reviewed; Journal article, 2020)
      In oil/water flows with very low water rates, the steady-state water fraction jumps discontinuously from a low value to a high value when the oil rate falls below the critical value. This jump is understood to be connected ...

    • Ontogeny-Specific Skeletal Deformities in Atlantic Haddock Caused by Larval Oil Exposure 

      Olsvik, Pål Asgeir; Sørhus, Elin; Meier, Sonnich; Torvanger, Ingrid; Thorbjørnsen, Maja; Thorsen, Anders; Sørensen, Lisbet; Fjelldal, Per Gunnar; Karlsen, Ørjan; Guimaraes, Igo G.; Lie, Kai Kristoffer (Peer reviewed; Journal article, 2021)
      Bone deformities are one of the main effects of crude oil exposure in marine fish larvae. Craniofacial and jaw deformities, if severe enough, may restrict feeding and ultimately kill the developing larvae. This study aimed ...

    • An ontology matching approach for semantic modeling: A case study in smart cities 

      Djenouri, Youcef; Belhadi, Hiba; Akli-Astouati, Karima; Cano, Alberto; Lin, Jerry Chun-Wei (Peer reviewed; Journal article, 2021)
      This paper investigates the semantic modeling of smart cities and proposes two ontology matching frameworks, called Clustering for Ontology Matching-based Instances (COMI) and Pattern mining for Ontology Matching-based ...

    • Ontology-Based Fault Tree Analysis Algorithms in a Fuzzy Environment for Autonomous Ships 

      Sahin, Bekir; Yazidi, Anis; Roman, Dumitru; Soylu, Ahmet (Peer reviewed; Journal article, 2021)
      This study deals with fault tree analysis algorithms based on an ontology-based approach in a fuzzy environment. We extend fuzzy fault tree analysis by embedding ontology-based fault tree structures. The ontology-based ...

    • Ontology-based Use Cases for Design-time and Runtime Composition of Mobile Services 

      Rój, Michal Konrad; Meland, Per Håkon; Floch, Jacqueline; Domaszewicz, Jaroslaw (Chapter, 2009)
      This paper presents application of ontology-based modelling and reasoning related to the different phases of the lifecycle of mobile services. Ontology-based descriptions complement traditional design-time and runtime ...

    • The OPAL methodology for reliability analysis of power systems 

      Kjølle, Gerd Hovin; Gjerde, Oddbjørn Idar (SINTEF Energi. Rapport;, Research report, 2012)

    • Open access simulation toolbox for the grid connection of offshore wind farms using multi-terminal HVDC networks 

      Ugalde-Loo, Carlos Ernesto; Adeuyi, Oluwole Daniel; Wang, Sheng; Liang, Jun; Jenkins, Nick E.; Ceballos, Salvador J.; Santos, Mario G.; Vidaurrazaga, I.; D'Arco, Salvatore; Bergna Diaz, Gilbert; Barenys, Marta; Parker, Max Alexander; Finney, Stephen Jon; Gatti, Antonio; Pitto, Andrea; Rapizza, Marco; Cirio, Diego; Lund, Per E.; Castro, A.; Azpiri, I. (Chapter; Peer reviewed, 2017)
      Decarbonisation of the European electricity system can become dauntingly costly due to transmission and distribution network issues arising from the integration of intermittent renewable generation sources. It is expected ...

    • Open Hatch Carriers – Future Vessel Designs & Operations 

      Lindstad, Elizabeth; Alterskjær, Sverre Anders; Sandaas, Inge; Solheim, Astrid Vamråk; Vigsnes, Joakim Tveiten (Journal article; Peer reviewed, 2017)
      The development of Open hatch carriers (OHC) dates back to the early 1960s linked to transport of newsprint from the paper mills along the coast of British Columbia (Canada) to the news-printers in San Francisco and Los ...

    • The Open Porous Media Flow Reservoir Simulator 

      Rasmussen, Atgeirr Flø; Sandve, Tor Harald; Bao, Kai; Lauser, Andreas; Hove, Joakim; Skaflestad, Bård; Klöfkorn, Robert; Blatt, Markus; Rustad, Alf Birger; Sævareid, Ove; Lie, Knut-Andreas; Thune, Andreas (Peer reviewed; Journal article, 2020)
      The Open Porous Media (OPM) initiative is a community effort that encourages open innovation and reproducible research for simulation of porous media processes. OPM coordinates collaborative software development, maintains ...

    • An Open-Source Many-Scenario Approach for Power System Dynamic Simulation on HPC Clusters 

      Zhang, Junjie; Razik, Lukas; Jakobsen, Sigurd Hofsmo; D'Arco, Salvatore; Benigni, Andrea (Peer reviewed; Journal article, 2021)
      In this paper we introduce an approach to accelerate many-scenario (i.e., hundreds to thousands) power system simulations which is based on a highly scalable and flexible open-source software environment. In this approach, ...

    • An open-source tool for reliability analysis in radial distribution grids 

      Jakobsen, Sigurd Hofsmo; Garau, Michele; Mo, Olve (Chapter; Peer reviewed, 2021)
      We present an open-source software implementation of an approximate contingency enumeration approach for calculating reliability in distribution grids based on RELRAD. The tool is coded using the efficient programming ...

    • OpenIaC: open infrastructure as code - the network is my computer 

      Chunming, Rong; Geng, Jiahui; Hacker, Thomas J.; Bryhni, Haakon; Jaatun, Martin, Gilje (Peer reviewed; Journal article, 2022)
      Modern information systems are built fron a complex composition of networks, infrastructure, devices, services, and applications, interconnected by data flows that are often private and financially sensitive. The 5G networks, ...

    • Opening the Software Engineering Toolbox for the Assessment of Trustworthy AI 

      Ahuja, Mohit Kumar; Mohamed-Bachir, Belaid; Pierre, Bernabet; Mathieu, Collet; Arnaud, Gotlieb; Chhagan, Lal; Dusica, Marijan; Sen, Sagar; Aizaz, Sharif; Helge, Spieker (Peer reviewed; Journal article, 2020)
      Trustworthiness is a central requirement for the acceptance and success of human-centered artificial intelligence (AI). To deem an AI system as trustworthy, it is crucial to assess its behaviour and characteristics against ...

    • Operability analysis of control system for ROV launch-and-recovery from autonomous surface vessel 

      Tran, Celine; Gushkov, Ivan Ivanov; Nordvik, Kristoffer; Røang, Simen Troye; Lysthaug, Simen Brodalen; Ommani, Babak; Fossen, Thor I.; Hassani, Vahid; Smines, Vidar; Johansen, Tor Arne (Journal article; Peer reviewed, 2023)
      The launch and recovery of equipment such as remotely operated vehicles (ROVs) is a critical task that defines the operability limits of many marine operations. This paper considers the analysis of control systems that are ...

    • Operability robustness index as seakeeping performance criterion for offshore vessels 

      Gutsch, Martin; Steen, Sverre; Sprenger, Florian (Journal article; Peer reviewed, 2020-12-01)
      The offshore industry operates increasingly large installations in exposed areas requiring high reliability and availability. Downtime of complex offshore systems leads to significant financial losses. Towards year-round ...

    • Operasjonalisering av fordelt tilsigsmodell i vannkraftbransjen 

      Kolberg, Sjur; Sæther, Beate (SINTEF Rapport;, Research report, 2017)

    • Operating a Battery in a Hydropower-Dominated System to Balance Net Load Deviations 

      Naversen, Christian Øyn; Bjarghov, Sigurd; Helseth, Arild (International Conference on the European Energy Market;2019, Chapter; Peer reviewed, 2019)
      Decreasing costs of battery storage technologies make them a viable option for providing flexibility in power systems. In this paper, we study the operations of a battery in combination with cascaded hydropower in a system ...

    • Operating Hydrogen-Based Energy Storage Systems in Wind Farms for Smooth Power Injection: A Penalty Fees Aware Model Predictive Control 

      Mariani, Valerio; Zenith, Federico; Glielmo, Luigi (Peer reviewed; Journal article, 2022)
      Smooth power injection is one of the possible services that modern wind farms could provide in the not-so-far future, for which energy storage is required. Indeed, this is one among the three possible operations identified ...

    • Operating Room of the Future (FOR) Digital Healthcare Transformation in the Age of Artificial Intelligence 

      Trocin, Cristina; Skogås, Jan Gunnar; Langø, Thomas; Kiss, Gabriel Hanssen (Chapter, 2022)
      New technologies are emerging under the umbrella of digital transformation in healthcare such as artificial intelligence (AI) and medical analytics to provide insights beyond the abilities of human experts. Because AI is ...