Recent Submissions

  • Challenges in Detecting Emergent Behavior in System Testing 

    Kjeldaas, Kent Aleksander; Haugen, Rune Andre; Syverud, Elisabet (Peer reviewed; Journal article, 2021)
    System integration testing in the defense and aerospace industry is becoming increasingly complex. The long lifetime of the system drives the need for sub-system modifications throughout the system life cycle. The manufacturer ...
  • Applying Systems Thinking to Frame and Explore a Test System for Product Verification; a Case Study in Large Defence Projects 

    Haugen, Rune Andre; Mansouri, Mo (Peer reviewed; Journal article, 2020)
    The test system is a vital part of delivering a verified product to the end customer. The test system used in Kongsberg Defence and Aerospace (KDA) to test missile products today needs to change to be able to cope with ...
  • Exploring technical and non-technical competencies of navigators for autonomous shipping 

    Sharma, Amit; Kim, Tae-Eun (Journal article; Peer reviewed, 2021)
    The emergence of autonomous ship technologies has attracted a growing body of academic studies, regulatory discussions and exploration endeavours in recent years. With the introduction of new technology comes the need for ...
  • Tick-transmitted co-infections among erythema migrans patients in a general practice setting in Norway: a clinical and laboratory follow-up study 

    Eliassen, Knut Eirik Ringheim; Ocias, Lukas; Krogfelt, Karen; Wilhelmsson, Peter; Dudman, Susanne; Andreassen, Åshild Kristine; Lindbæk, Morten; Lindgren, Per-Eric (Journal article; Peer reviewed, 2021)
    Background: Erythema migrans (EM) is the most common manifestation of Lyme borreliosis. Here, we examined EM patients in Norwegian general practice to find the proportion exposed to tick-transmitted microorganisms other ...
  • Solar-driven plasmonic heterostructure Ti/TiO2−x with gradient doping for sustainable plasmon-enhanced catalysis 

    Cheng, Chaoqun; Akram, Muhammad Nadeem; Nilsen, Ola; Pryds, Nini; Wang, Kaiying (Journal article; Peer reviewed, 2020)
    Plasmon-enhanced harvesting of photons has contributed to the photochemical conversion and storage of solar energy. However, high dependence on noble metals and weak coupling in heterostructures constrain the progress ...
  • An Oscillator-Based Wake-Up Receiver for Wireless Sensor Networks 

    Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2021)
    The Internet of Things (IoT) concept is mainly enabled by wireless sensor networks (WSNs), which are continuously gaining attention, due to their multidisciplinary applications. To enhance the WSNs energy efficiency, ...
  • Air gasification of wood chips, wood pellets and grass pellets in a bubbling fluidized bed reactor 

    Bandara, Janitha C.; Jaiswal, Rajan; Nielsen, Henrik K.; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne S. (Peer reviewed; Journal article, 2021)
    Gasification is an attractive method for biomass-to-energy conversion and fluidized bed design is one of the best options for large scale operation. A bubbling fluidized bed reactor was used to analyze the effects of biomass ...
  • Unlocking the power of big data within the early design phase of the new product development process 

    Ali, Haytham; Helgesen, Fredrik; Falk, Kristin (Peer reviewed; Journal article, 2021)
    This study investigates how to exploit big data to increase knowledge in the early design phase within new product development through an industrial application. There are limited research and a scarcity of empirical studies ...
  • High-elevational occurrence of two tick species, Ixodes ricinus and I. trianguliceps, at their northern distribution range 

    De Pelsmaeker, Nicolas; Korslund, Lars; Steifetten, Øyvind (Journal article; Peer reviewed, 2021)
    Background: During the last decades a northward and upward range shift has been observed among many organisms across different taxa. In the northern hemisphere, ticks have been observed to have increased their latitudinal ...
  • Pyrolysis of plastic waste to environmental friendly products 

    Pandey, Umesh; Stormyr, Jan Arild; Hassani, Alireza; Jaiswal, Rajan; Haugen, Hildegunn Hegna; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
    Pyrolysis of plastics is one of the efficient ways to recover plastic waste. Pyrolysis refers to a thermal degradation of long-chain organic molecules into smaller hydrocarbons. Many ongoing research studies are trying to ...
  • Experimental and computational studies of circulating fluidized bed 

    Moradi, Ali; Samani, Nastaran Ahmadpour; Mojarrad, Masih; Sharfuddin, Mohammad; Bandara, Janitha; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
    Biomass gasification represents an efficient process for the production of power, heat and biofuels. Different technologies are used for gasification and this article focuses on a circulating fluidized bed (CFB) system. ...
  • Diffusion of CO2 through polymer membranes 

    Olsen, Chatrine Høgseth; Augestad, Morten; Helland, Irene; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (Chapter; Peer reviewed, 2020)
    The food industry uses polymers as packaging to protect and maintain high quality and freshness of the product during distribution and storage. Polymers are permeable by gases like O2, CO2 and water vapour. In this paper, ...
  • A comparison of hazard analysis methods capability for safety requirements generation 

    Zikrullah, Nanda Anugrah; Kim, Hyungju; van der Meulen, Meine J. P.; Skofteland, Gunleiv; Lundteigen, Mary Ann (Journal article; Peer reviewed, 2021)
    A safety-critical system comprising several interacting and software-intensive systems must be carefully analyzed to detect whether new functional requirements are needed to ensure safety. This involves an analysis of the ...
  • Experiments and computational particle fluid dynamics simulations of biomass gasification in an air-blown fluidized bed gasifier 

    Timsina, Ramesh; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (Journal article; Peer reviewed, 2020)
    Experiments were performed in a pilot-scale bubbling fluidized bed gasification reactor with air as a fluidizing agent. Birch wood chips and sand particles were used as biomass and bed materials. Average molar product gas ...
  • A CPFD model to investigate the influence of feeding positions in a gasification reactor 

    Jaiswal, Rajan; Furuvik, Nora Cecilie Ivarsdatter; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
    The efficiency of a gasification process is directly related to the rate of biomass conversion into product gas. The rate of fuel conversion depends on the interaction of fuel with the bed material, the gasifying agent, ...
  • Method of identifying an operating regime in a bubbling fluidized bed gasification reactor 

    Jaiswal, Rajan; Furuvik, Nora Cecilie Ivarsdatter; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
    This work presents a new method for identifying the bubbling regime of a fluidized bed gasification reactor. The method has been developed using experimental measurements and a computational model. Pressure drops are ...
  • Experimental study of agglomeration of grass pellets in fluidized bed gasification 

    Furuvik, Nora Cecilie Ivarsdatter; Jaiswal, Rajan; Moldestad, Britt Margrethe Emilie (Chapter; Peer reviewed, 2020)
    The agglomeration tendency during gasification of grass pellets in a bubbling fluidized bed reactor was studied. Particle agglomeration occurs as a consequence of interactions between the bed particles and the biomass ash ...
  • CPFD simulation of a fixed bed gasification reactor 

    Thapa, Rajan Kumar; Jaiswal, Rajan; Moldestad, Britt Margrethe Emilie (Chapter; Peer reviewed, 2020)
    Biomass gasification is regarded as one of the most promising energy recovery technologies. The gases produced from the biomass gasification can be used for heat and power production. Alternatively, they can be used for ...
  • The importance of aquatic macrophytes in a eutrophic tropical shallow lake 

    Swe, Thida; Lombardo, Paola; Ballot, Andreas; Thrane, Jan-Erik; Sample, James; Eriksen, Tor Erik; Mjelde, Marit (Journal article; Peer reviewed, 2021)
    Inlay Lake is the second largest natural lake in Myanmar. Located in Shan State, in the eastern part of the country, it is a known biodiversity hotspot. The lake is negatively affected by an increasing local human population ...
  • High concentrations of lead (Pb) in blood and milk of free-ranging brown bears (Ursus arctos) in Scandinavia 

    Fuchs, Boris; Thiel, Alexandra; Zedrosser, Andreas; Brown, Ludovick; Hydeskov, Helle Bernstorf; Rodushkin, Ilia; Evans, Alina; Boesen, Amanda Høyer; Græsli, Anne Randi; Kindberg, Jonas; Arnemo, Jon Martin (Peer reviewed; Journal article, 2021)
    Exposure to lead (Pb) is a global health problem for both humans and wildlife. Despite a dramatic decline in human Pb exposure following restrictions of leaded gasoline and industry and thereby an overall reduction of Pb ...

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