Now showing items 261-280 of 980

    • Supporting students to prepare for higher education studies: Enhancing English writing skills with formative peer assessment 

      Takamine, Kaori (Conference object; Konferansebidrag, 2022-10)
      Studies report that writing skills of many beginner students in Norwegian higher education institutions are not adequately developed, showing a lack of critical thinking and referencing technique and a poor requisite language ability (Lødding and Aamodt 2015, Wollcheid et al. 2020). Literature also shows that a traditional lecture setting does not help students to enhance their learning autonomy ...
    • Hvordan vi motiverer våre internasjonale ingeniørstudenter 

      Takamine, Kaori; Eilertsen, Randi; Dybdahl, Tone Harr; Holbø, Marianne (Conference object; Konferansebidrag, 2023)
    • Integrating sustainability into production scheduling in hybrid flow-shop environments 

      Mokhtari-Moghadam, Ali; Pourhejazy, Pourya; Gupta, Deepak (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-24)
      Global energy consumption is projected to grow by nearly 50% as of 2018, reaching a peak of 910.7 quadrillion BTU in 2050. The industrial sector accounts for the largest share of the energy consumed, making energy awareness on the shop foors imperative for promoting industrial sustainable development. Considering a growing awareness of the importance of sustainability, production planning and ...
    • Throughput Optimization for NOMA Energy Harvesting Cognitive Radio with Multi-UAV-Assisted Relaying under Security Constraints 

      Dang, Viet-Hung; Nguyen, Le-Mai-Duyen; Vo, Van Nhan; Tran, Hung; Ho, Tu Dac; Chakchai, So-In; Surasak, Sanguanpong (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-28)
      This paper investigates the throughput of a non-orthogonal multiple access (NOMA)-based cognitive radio (CR) system with multiple unmanned aerial vehicle (UAV)-assisted relays under system performance and security constraints. We propose a communication protocol that includes an energy harvesting (EH) phase and multiple communication phases. In the EH phase, the multiple UAV relays (URs) harvest ...
    • Developing formative peer assessment in writing classes: focus on students’ perceptions 

      Takamine, Kaori (Conference object; Konferansebidrag, 2023-03)
      The literature of higher education has shown that formative peer assessment (FPA) promotes students’ learning across disciplines (Topping, 1998, Lynch et al. 2012, Li et al. 2019, among others). Despite the solid reported benefits, studies on an effective implementation of FPA are still limited in the literature (Nicol, Thomson, and Breslin 2014, Wanner and Palmer, 2018). A debilitating factor ...
    • Havforskningsinstituttets rådgivning for menneskeskapt støy i havet - Kunnskapsgrunnlag, vurderinger og råd for 2023 

      Sivle, Lise Doksæter; Forland, Tonje Nesse; de Jong, Karen; Zhang, Guosong; Kutti, Tina; Durif, Caroline; Wehde, Henning; Grimsbø, Endre (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 ...
    • On operator estimates in homogenization of nonlocal operators of convolution type 

      Piatnitski, Andrei; Sloushch, Vladimir; Suslina, Tatiana; Zhizhina, Elena (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-11)
    • Understanding Physical Properties of Fresh Water and Marine Ice using Multiphysics Modelling and Infrared Thermography 

      Khawaja, Hassan (Conference object; Konferansebidrag, 2023)
      Ice has unique physical properties, which tend to vary depending on how, where, and when it forms. In the presented work, we looked deeper into various physical properties of ice. In one of the studies, we focused on studying the ice adhesion on two types of polymers; polyurethane (PU) and polyvinyl-chloride (PVC). It revealed interesting behaviors with a viable potential for roads/highways coated ...
    • Optimal power flow based coordinated reactive and active power control to mitigate voltage violations in smart inverter enriched distribution network 

      Wagle, Raju; Sharma, Pawan; Charu, Sharma; Amin, Mohammad (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-30)
      Voltage violations are the main problem faced in distribution networks (DN) with a higher penetration of inverter-based generations (IBG). Active and reactive power control from smart inverters (SI) can mitigate such violations. Optimal power flow (OPF)-based control provides more accurate operating set points for the coordinated operation of SIs. Therefore, this paper presents a three-phase OPF-based ...
    • Secondary Network Throughput Optimization of NOMA Cognitive Radio Networks Under Power and Secure Constraints 

      Vo, Van Nhan; Viet Hung, Dang; Tran, Hung; Ha, Dac-Binh; Le, Cong; Ho, Tu Dac; Chakchai, So-In (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-31)
      Recently, the combination of cognitive radio networks with the nonorthogonal multiple access (NOMA) approach has emerged as a viable option for not only improving spectrum usage but also supporting large numbers of wireless communication connections. However, cognitive NOMA networks are unstable and vulnerable because multiple devices operate on the same frequency band. To overcome this drawback, ...
    • A Modified Version of the IEEE 39-bus Test System for the Day-Ahead Market 

      Tricarico, Gioacchino; Wagle, Raju; Dicorato, Maria; Forte, Giuseppe; Gonzalez-Longatt, Francisco; Rueda, Jose Luis (Chapter; Bokkapittel, 2023-03-28)
      Reaching net-zero emissions within the proposed time requires an enormous effort from the energy sector, and it is even more challenging for the electricity infrastructure. This article offers a modified version of the IEEE 39-bus system specifically created to allow zonal day-ahead market (ZDAM) simulations. The system representation is based on the original version of the IEEE 39-bus system but ...
    • Experiences in a Cyber-Physical Co-Simulation Testbed Development for a Smart-er Distribution Network 

      Wagle, Raju; Pham, Le Nam Hai; Tricarico, Gioacchino; Sharma, Pawan; Rueda, Jose Luis; Gonzalez-Longatt, Francisco (Chapter; Bokkapittel, 2023-03-28)
      With the rise of the integration of renewable energy sources, the operating characteristics of existing electric power distribution systems are evolving and changing. As a result, the digitalisation of the distribution network is gaining attention for effective real-time monitoring and control. Cyber-Physical cosimulation is one of the options for implementing and testing novel concepts and ideas ...
    • Sensitivity Analysis of Thermal Degradation of Plastic Waste Using Statistically Assumed Exponential Factors and Activation Energies 

      Un Nabi, Rao Adeel; Hussain, Hammad; Naz, Yasin; Shukrullah, Shazia; Khawaja, Hassan; Irfan, Muhammad; Rahman, Saifur; Jazem Ghanim, Abdulnour Ali (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-04)
      The rise in the production of plastic waste has prompted the exploration of various recovery options instead of landfilling, burning, and other unethical ways of decomposing. The experimentally generated rate constants for the thermal processing of plastic waste do not yield enough liquid fuels and gases for commercial-scale usage. It is imperative to predict kinetic rate constants statistically ...
    • Concise Definition of the Overcurrent Protection System for CIGRE European Medium Voltage Benchmark Network 

      Pham, Le Nam Hai; Wagle, Raju; Gonzalez-Longatt, Francisco (Chapter; Bokkapittel, 2023-03-28)
      In the significant widespread transition towards clean energies, there has been an unstoppable trend in integrating renewable energy sources (RSs) in distribution networks. However, the massive penetration of integrated multisources into conventional distribution systems may create several operational problems, such as malfunctioning protection systems. This paper concisely defines the setting for ...
    • Multiphysics Simulation of Particle-Surface Interaction and its Effect on Powder Patterns and Process Optimization 

      Siyahhan, Bercan; Boiger, Gernot; Fallah, Arash Soleiman; Khawaja, Hassan; Moatamedi, Mojtaba (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-29)
      In industrial processes, powder coating is widely utilized to attain functional or aesthetic surface properties on manufactured parts. A Eulerian-Lagrangian Multiphysics solver has been developed within the OpenFOAM framework in order to simulate and optimize such processes with regards to coating efficiency and homogeneity. In the scope of this study, the powder particle-substrate and particle-particle ...
    • Norwegian, Swedish, and Finnish first-year engineering students' motivational values and beliefs about the nature of mathematics 

      Tossavainen, Timo; Rensaa, Ragnhild Johanne; Haukkanen, Pentti (Chapter; Bokkapittel, 2022)
      We report from a Nordic research project that has investigated first-year engineering students in Norway, Sweden, and Finland, and the relationships between their task performance, motivational values, and beliefs about the nature of mathematics. The present paper focuses on the covariance between their motivational values and beliefs from the perspectives of gender and nationality. The results ...
    • Study of Dry Ice Growth on Duplex Cylinders 

      Sokolov, Pavlo; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2022)
      A study of dry ice growth on bundled (duplex) cylinders has been performed using icing wind tunnel experiments and computational fluid dynamics (CFD) numerical simulations. The aim of this study is to "fill the gaps" in the works of Wagner (2010) and Qing et al. (2018). The numerical simulations cover a range of possible icing conditions by varying the operating wind speed, median volume diameter, ...
    • Enhancement of Vehicular Visible Light Communication Using Spherical Detector and Custom Lens Combinations 

      Yahia, Selma; Meraihi, Yassine; Amar, Ramdane-Cherif; Ho, Tu Dac; Eldeeb, Hossien (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-28)
      Vehicular Visible light communication (VLC) technology has recently attracted much interest from researchers and scientists. This technology enables connectivity between vehicles and infrastructures along the road by using vehicles’ headlights and taillights as wireless transmitters. The reliability of vehicle-to-vehicle (V2V) VLC systems is affected by several factors, such as car mobility, optics ...
    • Delving Into the Interdependencies in the Network of Economic Sustainability Innovations 

      Badri Ahmadi, Hadi; Pourhejazy, Pourya; Moktadir, Md. Abdul; Dwivedi, Ashish; Liou, James J. H. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-23)
      Legislative pressures and public awareness are urging companies to foster sustainability innovations that improve business operations. Limited studies explored the underpinnings of the economic dimension of sustainability innovations; studying economic innovation criteria in the manufacturing sector of emerging economies can inform other industries while recession fears loom the financial prospects. ...
    • Data Processing Scheme for Laser Spot Thermography Applied for Nondestructive Testing of Composite Laminates 

      Roemer, Jakub; Khawaja, Hassan; Moatamedi, Mojtaba; Pieczonka, Lukasz (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-08)
      This paper proposes a data processing scheme for laser spot thermography (LST) applied for nondestructive testing (NDT) of composite laminates. The LST involves recording multiple thermographic sequences, resulting in large amounts of data that have to be processed cumulatively to evaluate the diagnostic information. This paper demonstrates a new data processing scheme based on parameterization and ...