Now showing items 141-160 of 1079

    • A CFD analysis for the performance assessment of a novel design of plates-in-tank latent storage unit for freezing applications 

      Selvnes, Håkon; Allouche, Yosr; Sevault, Alexis; Hafner, Armin (Science et technique du froid;2019-1, Chapter; Peer reviewed, 2019)
    • CFD-based design algorithm for CO2 ejectors 

      Ringstad, Knut Emil; Banasiak, Krzysztof; Hafner, Armin (Chapter; Peer reviewed, 2021)
    • The challenge of a real, complex hybrid project 

      Nøvik, Hanne; Krogh, Espen; Stokke, Maria Kristina; Marstein, Erik Stensrud; Kong, Jiehong; Ramos, Daryl Homer (Chapter, 2023)
      This paper explores the implementation process of a hybrid power plant project (HyPP) in the Philippines' deregulated and complex energy market. SN Aboitiz Power (SNAP) owns and operates the Magat HyPP which involves ...
    • Challenges and approaches of performing canonical action research in software security: research paper 

      Cruzes, Daniela Soares; Jaatun, Martin Gilje; Oyetoyan, Tosin Daniel (Chapter, 2018)
      When studying work practices, it is important to obtain accurate and reliable information about how work is actually done. Action research is an interactive inquiry process that balances problemsolving actions implemented ...
    • Challenges and emerging practices in design of automation 

      Vatn, Dorthea Mathilde Kristin; Johnsen, Stig Ole; Saghafian, Mina (Chapter, 2023)
      Automation is expected to improve efficiency, as well as increase safety and quality. However, as more automation is added to a system, the lower the situation awareness of the operators may be. In safety critical systems ...
    • Challenges and Strategies for a Real-Time Implementation of a Rainflow-Counting Algorithm for Fatigue Assessment of Power Modules 

      Antonopoulos, Antonios; D'Arco, Salvatore; Hernes, Magnar; Peftitsis, Dimosthenis (IEEE Applied Power Electronics Conference and Exposition. Conference Proceedings;2019, Chapter; Peer reviewed, 2019)
      The aim of this work is to obtain a reliable estimation of the remaining lifetime of power-electronic modules. Lifetime models provide information on the fatigue durability of power modules under repetitive loading ...
    • Challenges of SiC MOSFET Power Cycling Methodology 

      Göthner, Fredrik T. B. W.; Spro, Ole Christian; Hernes, Magnar; Peftitsis, Dimosthenis (Chapter; Peer reviewed, 2018)
      This paper investigates the power cycling methodology for reliability testing of SiC metal-oxide-semiconductor field-effect transistors (MOSFETs). Dedicated test benches were designed and built to study this issue. The ...
    • Characterization of cements for injection 

      Justnes, Harald; Skjølsvold, Ola (Chapter, 2017)
      The three most common cement s for rock injection in Norway were characterized in terms of grout flow properties, stability and initial set for w/c = 1.2, 1.0, 0.8 and 0.6 at 8 and 20°C. The fineness was characterized by ...
    • Charcoal and Use of Green Binder for Use in Carbon Anodes in the Aluminium Industry 

      Sommerseth, Camilla; Darell, Ove; Øye, Bjarte Arne; Støre, Anne; Rørvik, Stein (The Minerals, Metals & Materials Series;2367-1181, Chapter; Peer reviewed, 2020)
      Carbon anodes for aluminium production are produced from calcined petroleum coke (CPC), recycled anode butts and coal tar pitch (CTP). The CO2 produced during anode consumption contributes to a substantial amount of the ...
    • Chatbots as Part of Digital Government Service Provision – A User Perspective 

      Abbas, Nadia; Følstad, Asbjørn; Bjørkli, Cato (Chapter, 2023)
      Chatbots are taken up as part of digital government service provision. While the success of chatbots for this purpose depends on these being accepted by their intended users, there is a lack of knowledge concerning user ...
    • Chatbots for customer service: user experience and motivation 

      Følstad, Asbjørn; Skjuve, Marita (Proceedings of the 1st International Conference on Conversational User Interfaces;2019, Chapter; Peer reviewed, 2019)
      Companies are increasingly using chatbots to provide customer service. Despite this trend, little in-depth research has been conducted on user experience and user motivation for this important application area of conversational ...
    • Chatbots for social good 

      Følstad, Asbjørn; Brandtzæg, Petter Bae; Feltwell, Tom; Law, Effie L.-C.; Tscheligi, Manfred; Luger, Ewa (Chapter, 2018)
      Chatbots are emerging as an increasingly important area for the HCI community, as they provide a novel means for users to interact with service providers. Due to their conversational character, chatbots are potentially ...
    • A Checklist for Supply Chain Security for Critical Infrastructure Operators 

      Jaatun, Martin Gilje; Sæle, Hanne (Chapter, 2024)
      Critical infrastructure applications do not emerge fully formed, but generally rely on components and services from third-party vendors. This paper presents a brief survey on good practice for security requirements to be ...
    • Classification and analysis of impact on small-signal dynamics and stability from expansion of VSC-HVDC systems to multi-terminal HVDC grids 

      D'Arco, Salvatore; Beerten, Jef; Suul, Jon Are Wold (Chapter; Peer reviewed, 2017)
      This paper presents a structured approach for analysing the effect of HVDC transmission system expansion on the small signal dynamics. The methodology decomposes the expansion of the system into a sequence of steps and ...
    • Classification of Aquaculture Locations in Norway With Respect to Wind Wave Exposure 

      Lader, Pål; Kristiansen, David; Alver, Morten; Bjelland, Hans Vanhauwaert; Myrhaug, Dag (ASME Digital collection;OMAE2017-61659, Chapter, 2017)
      In Norway there are a total of 1070 registered sites for salmon farming all along the coast. Trends in the aquaculture industry in the recent decade are that salmon farming sites tend to gradually relocate to more wave and ...
    • Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant 

      Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (Chapter, 2017)
      Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ...
    • Climate Change and Fate of Arctic Oil Spills 

      Nordam, Tor; Beegle-Krause, Cynthia Juyne; Reed, Mark (Chapter, 2016-06)
      To investigate how the fate of oil released in the Arctic Ocean may change with a warmer climate, we have performed ensembles of oil spill simulations using Arctic environmental information (winds, currents, ice cover, ...
    • Climatic Forecasting of Wind and Waves Using Fuzzy Inference Systems 

      Stefanakos, Christos; Vanem, Erik (ASME Proceedings | Structures, Safety and Reliability;OMAE2017-61968, Chapter, 2017-06-25)
      Wind and wave climatic simulations are of great interest in a number of different applications, including the design and operation of ships and offshore structures, marine energy generation, aquaculture and coastal ...
    • Clustering and Dimensionality-reduction Techniques Applied on Power Quality Measurement Data 

      Rosenlund, Gjert Hovland; Høiem, Kristian Wang; Torsæter, Bendik Nybakk; Andresen, Christian Andre (Chapter; Peer reviewed, 2020)
      The power system is changing rapidly, and new tools for predicting unwanted events are needed to keep a high level of security of supply. Large volumes of data from the Norwegian power grid have been collected over several ...
    • CNN-based Feature Extraction for Robotic Laser Scanning of Weld Grooves in Tubular T-joints 

      Mjølhus, Øyvind Wormdal; Cibicik, Andrej; Njaastad, Eirik B; Egeland, Olav (Chapter, 2022)
      This paper presents an algorithm for feature point extraction from scanning data of large tubular T-joints (a subtype of a TKY joint). Extracting such feature points is a vital step for robot path generation in robotic ...