Recent Submissions

  • Predicting Habitat Properties Using Remote Sensing Data: Soil pH and Moisture, and Ground Vegetation Cover 

    Haugen, Hanne; Devineau, Olivier; Heggenes, Jan; Østbye, Kjartan; Linløkken, Arne N. (Peer reviewed; Journal article, 2022)
    Remote sensing data comprise a valuable information source for many ecological landscape studies that may be under-utilized because of an overwhelming amount of processing methods and derived variables. These complexities, ...
  • Fourier ptychography algorithm based on scaled Fourier transform 

    Hasanzade, Mojde; Hussain, Nazabat; Breiby, Dag Werner; Akram, Muhammad Nadeem (Peer reviewed; Journal article, 2021)
    This letter discusses an alternative Fourier ptychography algorithm based on the scaled fast Fourier transform propagation. The advantage of this scheme is that it enables a zoom-in capability of the object spectrum and ...
  • Cyber security risk assessment in autonomous shipping 

    Tusher, Hasan Mahbub; Munim, Ziaul Haque; Notteboom, Theo E.; Kim, Tae Eun; Nazir, Salman (Journal article; Peer reviewed, 2022)
    Autonomous ships would require higher cyber-physical interaction in comparison with traditional shipping operations, thus increasing the vulnerabilities associated with cyber security. The increasing complexity surrounding ...
  • Design of a Medium-Scale Circulating Fluidized Bed Reactor for Chlorination of Processed Aluminum Oxide 

    Barahmand, Zahir; Aghaabbasi, Omid; Salcido, Jose Luis; Rustad, Emmy Kristine; Jayarathna, Chameera; Ratnayake, Chandana (Journal article; Peer reviewed, 2022)
    Fluidization is a well-established and widely used technology in the process industry. The production stability and the large effective contact area between the active substances, resulting in high mass and heat transfer ...
  • CPFD Simulations on a Chlorination Fluidized Bed Reactor for Aluminum Production: An Optimization Study 

    Barahmand, Zahir; Jayarathna, Chameera; Ratnayake, Chandana (Journal article; Peer reviewed, 2022)
    Early CPFD simulation studies on designing a fluidized bed reactor for alumina chlorination showed that the model suffers from high particle outflow and dense phase bed channeling. The present study is aimed to optimize ...
  • CPFD Modeling to study the Hydrodynamics of an Industrial Fluidized Bed Reactor for Alumina Chlorination 

    Barahmand, Zahir; Jayarathna, Chameera; Ratnayake, Chandana (Journal article; Peer reviewed, 2022)
    Aluminum is one of the most used metals. Since aluminum has a unique combination of appealing properties and effects, it allows significant energy savings in many applications, such as vehicles and buildings. Although this ...
  • Analysis of a Low Power Inverting CMOS Schmitt Trigger Operating in Weak Inversion 

    Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Peer reviewed; Journal article, 2022)
    This article analyzes the operation of a low power inverting CMOS Schmitt trigger in weak inversion. The analysis is based on an earlier proposed analytical model, which relates the hysteresis voltages to the transistors' ...
  • Sensitivity Analysis and Anaerobic Digestion Modeling: A Scoping Review 

    Barahmand, Zahir; Samarakoon Arachchige, Gamunu (Peer reviewed; Journal article, 2022)
    A growing awareness of global climate change has led to an increased interest in investigating renewable energy sources, such as the anaerobic digestion of biomass. This process utilizes a wide range of microbial communities ...
  • Application of Autonomous Inflow Control Valve for Enhanced Bitumen Recovery by Steam Assisted Gravity Drainage 

    Hosnaroudi, Soheila Taghavi; Farsi Madan, Farzan; Timsina, Ramesh; Moldestad, Britt Margrethe Emilie (Peer reviewed; Journal article, 2022)
    Steam assisted gravity drainage is a thermal method for enhanced bitumen recovery. In this method, steam is injected to bitumen and heavy oil to reduce the viscosity and make the oil mobile. However, early breakthrough of ...
  • Proceedings of the Tenth International Seminar on Fire and Explosion Hazards, 22-27 May 2022, Oslo, Norway 

    Vågsæther, Knut; Lach, Agnieszka; Bradley, Derek; Lundberg, Joachim (Conference object; Peer reviewed, 2022)
    The Tenth International Seminar on Fire and Explosion Hazards (ISFEH10) organized in Oslo, Norway from 22 to 27 May 2022, is a place to share research on the physical effects of hazards, prediction methods for consequences, ...
  • Low-Viscosity Nonaqueous Sulfolane-Amine-Methanol Solvent Blend for Reversible CO2 Capture 

    Wagaarachchige, Jayangi Dinesha; Idris, Zulkifli; Arstad, Bjørnar; Kummamuru, Nithin Bharadwaj; Sætre, Kai Arne; Halstensen, Maths; Jens, Klaus-Joachim (Peer reviewed; Journal article, 2022)
    In this work, the absorption–desorption performance of CO2 in six new solvent blends of amine (diisopropylamine (DPA), 2-amino-2-methyl-1-propanol (AMP), methyldiethanolamine (MDEA), diethanolamine (DEA), diisopropanolamine ...
  • Joint International Master in Smart Systems Integrated Solutions 

    Aasmundtveit, Knut Eilif; Wang, Changhai; Rencz, Márta; Paulasto-Krockel, Mervi; Imenes, Kristin; Desmulliez, Marc P.Y.; Ender, Ferenc; vuorinen, vesa (Chapter, 2021)
    The Joint International Master in Smart Systems Integrated Solutions (SSIs) will graduate candidates for the ever-growing industry of Smart Systems, ubiquitous in all sectors of society including healthcare, transport, ...
  • Nano-Power Monostable-Based Wake-Up Mechanism for Wireless Sensor Networks 

    Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2022)
    Wireless sensor networks (WSNs) generally consist of thousands of sensor nodes, each one supplied by a battery or harvested energy. To prolong the lifetime of wireless sensor networks, wake-up receivers (WuRxs) are typically ...
  • Weak Inversion Model of an Inverting CMOS Schmitt Trigger 

    Nowbahari, Arian; Marchetti, Luca; Azadmehr, Mehdi (Chapter, 2022)
    In this article the subthreshold characteristics of an inverting single input CMOS Schmitt trigger circuit are analyzed. Analytical expressions for the low-to-high and high-to-low hysteresis transition voltages are determined. ...
  • A review on techno-economic assessment of solar water heating systems in the middle east 

    Dehghan, Mehran; Pfeiffer, Carlos; Rakhshani, Elyas; Bakhshi-Jafarabadi, Reza (Peer reviewed; Journal article, 2021)
    Currently, the economy of Middle Eastern countries relies heavily on fossil fuel sources. The direct and indirect adverse consequences of fossil fuel utilization for power generation enforce the region’s countries to raise ...
  • Modelling the synchronisation control for a hydro power controller 

    Hellborg, Jonatan; Tollefsen, Tonje; Bhusal, Khemraj; Winkler, Dietmar (Peer reviewed; Journal article, 2021)
    This paper presents the modelling of a synchronisation control as used inside a typical hydro power controller for small hydro power plants. It was built using the open-source modelling language Modelica by use of the ...
  • Efficient parameterization of modelica models 

    Beutlich, Thomas; Winkler, Dietmar (Peer reviewed; Journal article, 2021)
    This article presents the different approaches and use cases for efficient parameterization of Modelica models by means of external data resources. The main motivation is to improve the overall quality, testability and ...
  • Moving Bed Biofilm Process in Activated Sludge Model 1 for Reject Water Treatment 

    Sivalingam, Vasan; Arachchige, Gamunu L. Samarakoon; Dinamarca, Carlos (Peer reviewed; Journal article, 2021)
    A moving bed biofilm (MBB) process was modelled in AQUASIM using the standard activated sludge model 1 (ASM1) as a baseline. The model was controlled against experimental data from a pilot Hybrid Vertical Anaerobic Biofilm ...
  • Mathematical modelling of fluid flow in electromagnetically stirred weld pool 

    Enger, Kjell; Mousavi, Mehdi Gebreil; Safari, Amir (Peer reviewed; Journal article, 2021)
    In this paper, a mathematical model has been proposed to study the relationship between electromagnetic stirring (EMS) weld parameters and the mode of fluid flow on grain refinement of AA 6060 weldments. For this purpose, ...
  • Developing protective limiters for a hydro power controller in modelica 

    Manoranjan, Luxshan; Winkler, Dietmar (Peer reviewed; Journal article, 2021)
    In recent years the operation of electrical power plants has become more and more challenging due to a more dynamic operation pattern in order to keep the voltage quality within the limits of what the electrical network ...

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