Recent additions

  • Exploring the Interconnected Realms of Multiphysics: Insights from My Research Journey 

    Khawaja, Hassan Abbas (Conference object; Konferansebidrag, 2024-04-02)
    In this talk, I present an in-depth exploration of multiphysics—a domain where physical processes or phenomena operate simultaneously and interact. My research encompasses the development and utilization of computational models to solve complex systems where interdependent physical processes coexist. From the fluid-structure interactions that play a critical role in various engineering applications ...
  • Multi-agent Reinforcement Learning for Structured Symbolic Music Generation 

    Dadman, Shayan; Bremdal, Bernt Arild (Chapter; Bokkapittel, 2023-07-12)
    Generating structured music using deep learning methods with symbolic representation is challenging due to the complex relationships between musical elements that define a musical composition. Symbolic representation of music, such as MIDI or sheet music, can help overcome some of these challenges by encoding the music in a format that allows manipulation and analysis. However, the symbolic ...
  • Some New weak-(Hp-Lp) Type Inequalities For Weighted Maximal Operators Of Fejér Means Of Walsh–Fourier Series 

    Baramidze, Davit; Tephnadze, G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-13)
    We introduce some new weighted maximal operators of the Fejér means of the Walsh–Fourier series. We prove that for some "optimal" weights these new operators are bounded from the martingale Hardy space H<sub>p</sub>(G) to the space weak-L<sub>p</sub>(G), for 0 <p<1/2. Moreover, we also prove sharpness of this result. As a consequence we obtain some new and well-known results.
  • Analysis of civil engineering infrastructure in Norway with solutions based on structural health monitoring and artificial intelligence 

    Tangrand, Kristoffer Meyer; Singh, Harpal (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-19)
    Ageing civil infrastructures such as bridges and building causes many consequences from practical and economical point of view. Especially in northern Norway, the impact of extreme arctic conditions is intense on civil engineering infrastructures (see \cite{Singh:2022:hologaland_Bridge}). With the increased loading due to the prosperous seafood industry and increased cargo activity is putting ...
  • Academic and research collaboration between the IVT departments 

    Khawaja, Hassan Abbas (Conference object; Konferansebidrag, 2024)
  • Measuring the Effectiveness of AI-Enabled Chatbots in Customer Service Using AnyLogic Simulation 

    Sun, Xu; Yu, Hao; Solvang, Wei Deng (Chapter; Bokkapittel, 2023-01-26)
    With the rapid technological advancement and innovation in Industry 4.0/5.0, digitalization has become the mainstream that transforms the paradigm of many industries, businesses, and services. In this regard, AI-enabled chatbots have been increasingly adopted by many companies for providing customer services instead of human agents. On the one hand, the use of AI-enabled chatbots provides opportunities ...
  • A Digital Reverse Logistics Twin for Improving Sustainability in Industry 5.0 

    Sun, Xu; Yu, Hao; Solvang, Wei Deng (Chapter; Bokkapittel, 2023-09-14)
    The rapid development of information and communication technology (ICT) and digitalization in the Industry 5.0 era have opened up new opportunities for reverse logistics management to become digitalized, smarter, more sustainable, and simplified by incorporating disruptive technologies, e.g., Internet-of-things (IoT), artificial intelligence (AI), big data analysis, simulation, blockchain, etc. ...
  • A General Framework for Epidemic Logistics Management 

    Maharjan, Sujan; Solvang, Wei Deng; Yu, Hao (Chapter; Bokkapittel, 2023-01-26)
    Human history is full of epidemic outbreaks that occur on a regular basis. The past epidemics have resulted in millions of deaths and economic recessions. With the increasing frequency of human-induced epidemics in recent years, effective and efficient epidemic logistics management has become vital for successfully containing the spread of the disease as well as preventing societal disruption, ...
  • Experimental Investigation of Deicing with Seawater 

    Sæterdal, Ane Solbakken; Visich, Aleksandra; Deshpande, Sujay; Sundsbø, Per-Arne (Chapter; Bokkapittel, 2023-06-19)
    Increased traffic and interest in arctic regions necessitate measures to ensure the safety and functionality of vessels. Sea-spray icing is one of the significant hazards for small- and medium-sized vessels in polar waters. Ice cover can restrict access to essential parts of a vessel and compromise its stability. Existing deicing measures, such as heat or chemical application and manual ice removal, ...
  • Non-directional Overcurrent Protection Relay Testing Using Virtual Hardware-in-the-Loop Device 

    Pham, Le Nam Hai; Wagle, Raju; Gonzalez-Longatt, Francisco; Acosta Montalvo, Martha Nohemi (Chapter; Bokkapittel, 2023-05-17)
    Protective relays are an integral part of the power grid, making it reliable and secure against abnormal conditions. Hardware-in-the-Loop (HIL) can be employed to test and validate digital protective relay devices in the real-time simulation comprising hardware and software before actual implementation. However, the HIL technique requires a complex and high-cost technical environment consisting of ...
  • A Convergent Numerical Algorithm for α-Dissipative Solutions of the Hunter–Saxton Equation 

    Christiansen, Thomas; Grunert, Katrin; Nordli, Anders Samuelsen; Solem, Susanne (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-02)
    A convergent numerical method for α -dissipative solutions of the Hunter–Saxton equation is derived. The method is based on applying a tailor-made projection operator to the initial data, and then solving exactly using the generalized method of characteristics. The projection step is the only step that introduces any approximation error. It is therefore crucial that its design ensures not only a ...
  • Take-Home Exams in University Mathematics and Science Subjects: Some Ethical Considerations 

    Rensaa, Ragnhild Johanne; Kristiansen, Raymond (Journal article; Tidsskriftartikkel; Peer reviewed, 2024)
    This article addresses some challenging perspectives related to offering take-home exams in mathematics at university level. The challenges arose during work on a previous article where four perspectives originating from Bjerrum Nielsen’s framework (2003) were used to analyze universities’ assessment methods during the Covid lockdown in our country. The perspectives had some ethical considerations ...
  • A new dispatching mechanism for parallel-machine scheduling with different efficiencies and sequence-dependent setup times 

    Wu, Gen-Han; Pourhejazy, Pourya; Li, Wang-Xian; Wu, Tai-Hsi (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-22)
    he Apparent Tardiness Cost (ATC) dispatching rule was initially developed to minimize tardiness in single machine scheduling problems. ATC extensions have been frequently applied in other production settings, relying heavily on blocking idle machine capacity with a single-machine outlook; this approach may not result in the best outcomes, considering that machines have different efficiencies. This ...
  • Exploring the curricular and pedagogical decision criteria for research-based learning design in undergraduate studies 

    Pourhejazy, Pourya; Isaksen, Karl Robert (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-13)
    Learning design has a multifaceted nature requiring a range of course- and institutional considerations. Analyzing the decision criteria’s influence on research-based learning design helps understand the causes of the success/failure of the approach in achieving the teaching goals to improve the study programs. This study explores the interrelationship between the curricular and pedagogical criteria ...
  • Multiphysics in Engineering Education: Bridging Theory and Practice 

    Khawaja, Hassan Abbas (Conference object; Konferansebidrag, 2024-02-15)
    Multiphysics, the interdisciplinary field that integrates multiple physical phenomena into a unified framework, has emerged as a pivotal aspect of contemporary engineering education. This abstract explores the profound role of multiphysics in shaping the educational landscape, fostering a holistic approach that transcends traditional disciplinary boundaries. <p> <p>In the ever-evolving realm of ...
  • Running out of excuses? Norwegian political and policy discourses justifying oil and gas development in the Arctic 

    Ballo, Bjørn Moen; Kristoffersen, Berit; Sidortsov, Roman (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-08)
    In this article, we analyse how energy security are woven into political discourses among Norwegian policymakers after the Russian invasion of Ukraine and the consequences of this for intergenerational justice and environmental concerns more broadly. Preceding justifications centred on state revenue and domestic economic growth, the current discourse focuses on the European need for security of ...
  • Electrical stunning and killing of lumpfish with commercial waterbath and dry stunners 

    van de Vis, Hans; Reimert, Henny; Grimsbø, Endre; Gerritzen, Marien; Foss, Atle; Roth, Bjørn (Research report; Forskningsrapport, 2024-02-12)
    Lumpfish, ranging in size from 146-4200 g, were placed in an electric dry stunning unit head first and exposed to 50 Hz, 240 V AC for 0.5 or 1 s and thereafter 4.5 or 9 s of electricity, thus 5 and 10 s respectively. In seawater, lumpfish were exposed to an electric field equivalent of 4.6 Vrms/cm, 100 pps square AC, with 15% duty cycle for 1 s and thereafter 9 s. This to verify whether the animal ...
  • Enhancing AI Systems through Representative Dataset, Transfer Learning, and Embedded Vision 

    Patil, Ravindra Rajaram (Doctoral thesis; Doktorgradsavhandling, 2024-02-28)
    <p>Artificial intelligence (AI) encompasses a range of techniques that enable machines to perceive, learn, and make intelligent decisions and it has emerged as transformative technology in many applications. This thesis presents the development of an AI model, focusing on the significance of the primary representative dataset and the effectiveness of transfer learning and fine-tuning techniques for ...
  • Stabilization of Non-Cooperative Satellites in Low Earth Orbits using Inter-Satellite Atmospheric Drag 

    Oland, Espen; Kristiansen, Raymond (Chapter; Bokkapittel, 2023-08-07)
    This paper presents a novel solution to the problem of stabilization of non-cooperative satellites in low Earth orbits, which utilizes inter-satellite aerodynamic drag effects for generation of aerodynamics moments in the wake of a controlled satellite. Hence, by altering the position of a smaller controlled satellite, we are able to change the wake region and thus provide aerodynamic moments for ...
  • Havforskningsinstituttets rådgivning for menneskeskapt støy i havet - Kunnskapsgrunnlag, vurderinger og råd for 2024 

    Forland, Tonje Nesse; Sivle, Lise Doksæter; de Jong, Karen; Pedersen, Geir; Strømme, Marte Louise; Kutti, Tina; Durif, Caroline; McQueen, Kate; Grimsbø, Endre; Wehde, Henning (Research report; Forskningsrapport, 2023)
    Havforskningsinstituttet gir råd for alle operasjoner til havs som involverer bruk av lydkilder, samt elektromagnetiske kilder som kan påvirke marine økosystemer. Dette inkluderer vitenskapelige undersøkelser, utbygging og sprenging i sjø, seismiske og elektromagnetiske undersøkelser i forbindelse med petroleumsvirksomhet , og utbygging og drift av vindkraftanlegg til havs. Denne rapporten er en ...

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