Now showing items 324-343 of 347

    • Uncovering Contributing Factors to Interruptions in the Power Grid: An Arctic Case 

      Eikeland, Odin Foldvik; Bianchi, Filippo Maria; Holmestrand, Inga Setså; Bakkejord, Sigurd; Santos, Sergio; Chiesa, Matteo (Peer reviewed; Journal article, 2022)
      Electric failures are a problem for customers and grid operators. Identifying causes and localizing the source of failures in the grid is critical. Here, we focus on a specific power grid in the Arctic region of Northern ...
    • Underground hydrogen storage (UHS) in natural storage sites: A perspective of subsurface characterization and monitoring 

      Luo, Xiaodong; Tveit, Svenn; Gholami, Raoof; Andersen, Pål Østebø (Journal article; Peer reviewed, 2024)
      With the long-standing efforts of green transition in our society, underground hydrogen storage (UHS) has emerged as a viable solution to buffering seasonal fluctuations of renewable energy supplies and demands. Like ...
    • Underground Hydrogen Storage: Technology Monitor Report 

      van Gessel, Serge; Hajibeygi, Hadi; Edlmann, Katriona; Dopffel, Nicole; Xie, Quan; Hough, Ed; Groenenberg, Remco; Yallup, Christine; Greco, Gianluca; Réveillère, Arnaud; Schultz, Richard; Van Noort, Reinier (Research report, 2023)
    • Understanding Scale-Up of High-Current Electrodes 

      Halvorsen, Svenn Anton; Herland, Egil Vålandsmyr; Sparta, Manuel; Risinggård, Vetle Kjær (Peer reviewed; Journal article, 2023)
      A simple and generic model for the heat distribution in electrodes for primary metal production has been investigated. The equations have been analyzed focusing on understanding the scale-up of electrodes under both direct ...
    • Underwater noise from wind at the high north LoVe ocean observatory 

      Ødegaard, Lars Alf; Pedersen, Geir; Johnsen, Espen (Peer reviewed; Journal article, 2019)
      The Lofoten-Vesterålen (LoVe) Cabled Ocean Observatory is located in an oceanographic, ecological, and economical hotspot off the Northern Norwegian cost. The observatory is a national research infrastructure under development ...
    • Usability evaluations of mobile mental health technologies: A systematic review study 

      Inal, Yavuz; Wake, Jo Dugstad; Guribye, Frode; Nordgreen, Tine (Peer reviewed; Journal article, 2020)
      Background: Many mobile health (mHealth) apps for mental health have been made available in recent years. Although there is reason to be optimistic about their effect on improving health and increasing access to care, there ...
    • User-centred design of clinical dashboards for guided iCBT 

      Wake, Jo Dugstad; Rabbi, Fazle; Inal, Yavuz; Nordgreen, Tine (Peer reviewed; Journal article, 2022)
      As Internet-based technology spreads to most areas of life, it becomes a challenge to grasp opportunities arising from enormous amounts of data being generated from various sources such as smart homes, smart cities, health ...
    • Using Mask R-CNN for Underwater Fish Instance Segmentation as Novel Objects: A Proof of Concept 

      Chen, I-Hao; Belbachir, Nabil (Journal article; Peer reviewed, 2023)
      Instance Segmentation in general deals with detecting, segmenting and classifying individual instances of objects in an image. Underwater instance segmentation methods often involve aquatic animals like fish as the things ...
    • Using the Quemada rheology model for drilling fluids - practical considerations 

      Bjørkevoll, Knut Steinar (Journal article; Peer reviewed, 2024)
      A mathematical description of the Quemada rheological model is given, focusing on realistic drilling fluids. The purpose of the work described is to derive results that are required for robust, accurate, and efficient ...
    • Utarbeidelse av plan for rydding av marint plastavfall på ytre kyst av Vestland Fylke 

      Bastesen, Eivind (Research report, 2020)
      Denne rapporten inneholder en utarbeidelse av plan for basisrydding ytre kyst Vestland. Dette innebærer en kartlegging av ulike aktører som kan ta oppdraget med å rydde 40% av ytre kyst Vestland fylke. I rapporten forsøkes ...
    • Utnyttelse av spillvarme i Lista Renewable Energy Park 

      Risinggård, Vetle Kjær; Nordgård-Hansen, Ellen Marie (Research report, 2020)
      I denne rapporten er det sett på utradisjonelle bruksområder for spillvarme fra en battericellefabrikk med temperatur fra 35–40 °C og opp mot 80 °C. Mellomlagring av spillvarme for utjevning av variasjoner i produksjon ...
    • Utvikling av kartleggingsmetoder og estimat for oppryddingskostnader for makroplast i strandsonen 

      Bastesen, Eivind; Haave, Marte; Neby, Simon (Research report, 2020)
      For kystkommunene Sund, Fjell og Øygarden er håndtering av marint avfall et vedvarende problem som vil medføre store kostnader i årene som kommer. I dette prosjektet har vi utarbeidet kart over områder med kystnære ...
    • UX-based personalization of timed media experiences 

      Arntzen, Ingar M; Borch, Njål Trygve (Lecture, 2021)
      A client-side approach brings great opportunities for flexible personalization of timed media experiences. This, turns it into a challenge of UX development. However, UX development does not support time-driven rendering ...
    • V3Geo: A cloud-based repository for virtual 3D models in geoscience 

      Buckley, Simon John; Howell, John Anthony; Naumann, Nicole; Lewis, Conor; Chmielewska, Magda; Ringdal, Kari; Vanbiervliet, Joris; Tong, Bowei; Mulelid-Tynes, Oliver S.; Foster, Dylan; Maxwell, Gail; Pugsley, Jessica (Peer reviewed; Journal article, 2022)
      V3Geo is a cloud-based repository for publishing virtual 3D models in geoscience. The system allows storage, search and visualisation of mesh models typically acquired using techniques such as photogrammetry and laser ...
    • Verification of a real-time ensemble-based method for updating earth model based on GAN 

      Fossum, Kristian; Alyaev, Sergey; Tveranger, Jan; Elsheikh, Ahmed H. (Peer reviewed; Journal article, 2022)
      The complexity of geomodelling workflows is a limiting factor for quantifying and updating uncertainty in real-time during drilling. We propose Generative Adversarial Networks (GANs) for parametrization and generation of ...
    • Vibration-assisted annular fluid displacement for rig-less well abandonment operations 

      Skadsem, Hans Joakim; Giljarhus, Knut Erik Teigen; Øijordsbakken Fredheim, Fiona; van Riet, Egbert; Keultjes, Wout J. G. (Journal article; Peer reviewed, 2022)
      Through-tubing abandonment is the operation where the production tubing is cut or punched and cemented inside the production casing. This can establish a full cross-sectional barrier or isolation in wells where the cement ...
    • Vibration-Based SHM in the Synthetic Mooring Lines of the Semisubmersible OO-Star Wind Floater under Varying Environmental and Operational Conditions 

      Anastasiadis, Nikolaos; Sakaris, Christos; Schlanbusch, Rune; Sakellariou, John (Peer reviewed; Journal article, 2024)
      As the industry transitions toward Floating Offshore Wind Turbines (FOWT) in greater depths, conventional chain mooring lines become impractical, prompting the adoption of synthetic fiber ropes. Despite their advantages, ...
    • Virtual field trips utilizing virtual outcrop: construction, delivery and implications for the future 

      Pugsley, Jessica H.; Howell, John A.; Hartley, Adrian; Buckley, Simon John; Brackenridge, Rachel; Schofield, Nicholas; Maxwell, Gail; Chmielewska, Magda; Ringdal, Kari; Naumann, Nicole; Vanbiervliet, Joris (Peer reviewed; Journal article, 2022)
      The advent of photorealistic, 3D computer models of cliff sections (virtual outcrops) has improved the immersive nature of virtual geological field trips. As the COVID-19 pandemic led to widespread national and international ...
    • Visual investigation of CO2 dissolution and convection in heterogeneous porous media at reservoir temperature and pressure conditions 

      Amarasinghe, Widuramina Sameendranath; Fjelde, Ingebret; Flaata, Anna Maija Nørstebø (Peer reviewed; Journal article, 2021)
      CO2 convective mixing in saline aquifers has been widely studied numerically and experimentally. Reservoir heterogeneity is significant for CO2 convective mixing and experimental studies are still limited. In this study, ...
    • Vocal Cord Function During Recurrent Laryngeal Nerve Injury Assessed by Accelerometry and EMG 

      Dahle, Geir Olav; Setså, Erling Johan; Svendsen, Øyvind Sverre; Stangeland, Lodve; Heimdal, John-Helge; Henriksen, Bård; Husby, Paul; Brauckhoff, Katrin (Peer reviewed; Journal article, 2019)
      Objective Gradual impairment of nerve conduction is expected to be tightly associated with simultaneous gradual loss of vocal cord contractility, related to the fact that injured axons are connected to a defined number ...