• 25-years Svalbard data record reveals change in long-range transport of sulphur agents to the warming Arctic 

      Dekhtyareva, Alena (Conference object, 2019)
      Current study investigates the 25-years seasonal trend in the concentration of SO2and non-sea salt SO42-and compares observed changes with the evolution in emission of sulphur agents in primary source regions of anthropogenic aerosols and alteration in characteristics of air masses transporting pollutants to Svalbard.
    • 6G Network Architecture Using FSO-PDM/PV-OCDMA System with Weather Performance Analysis 

      Singh, Mehtab; Pottoo, Sahil Nazir; Armghan, Ammar; Aliqab, Khaled; Alsharari, Meshari; Abd El-Mottaleb, Somia A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-04)
      This paper presents a novel 160 Gbps free space optics (FSO) communication system for 6G applications. Polarization division multiplexing (PDM) is integrated with an optical code division multiple access (OCDMA) technique to form a PDM-OCDMA hybrid. There are two polarization states: one is X-polarization generated from adjusting the azimuthal angle of a light source at 0° while the other is ...
    • Academic and research collaboration between the IVT departments 

      Khawaja, Hassan Abbas (Conference object; Konferansebidrag, 2024)
    • Acoustical properties of solid-liquid composites and related computational problems 

      Karzhou, Andrei (Doctoral thesis; Doktorgradsavhandling, 2023-07-05)
      The thesis provides a study of acoustical performance and characterisation of solid-liquid composites. We address both experimental and numerical aspects of fluid-solid interaction problems. In the experimental part, we perform a comparative study of the sound damping properties of perforated plates with viscoelastic inclusions, such as polyurethane and soap emulsified with oil grease lubricant, ...
    • Adaptive Backstepping Control for a Fully-Actuated Rigid-Body in a Dual-Quaternion Framework 

      Andersen, Tom Stian; Kristiansen, Raymond (Chapter; Bokkapittel, 2020-03-12)
      We address the trajectory tracking problem for a fully actuated rigid-body with unknown mass and inertia parameters and unknown disturbance forces, using an adaptive backstepping controller based on dual-quaternions. We show that the proposed controller, in closed loop with a nonlinear model of the system, renders the equilibrium points uniformly asymptotically stable. The proposed controller ...
    • Additive Manufacturing in the Supply Chain 

      Pourhejazy, Pourya (Chapter; Bokkapittel, 2023)
      Additive manufacturing (AM) is replacing traditional manufacturing approaches – such as subtractive and molding – in some industries. The product and supply chain impacts of AM continue to extend its industrial reach, improve engineer-to-order manufacturing, and pave the way to mass customization. This study explores the supply chain changes that may arise from a full or partial transition to AM-based ...
    • Additive weighted Lp estimates of some classes of integral operators involving generalized Oinarov kernels 

      Baiarystanov, A.O.; Persson, Lars Erik; Wall, Peter; Abylayeva, A.M. (Journal article; Peer reviewed; Tidsskriftartikkel, 2017)
    • Addressing Uncertainty by Designing an Intelligent Fuzzy System to Help Decision Support Systems for Winter Road Maintenance 

      Hatamzad, Mahshid; Polanco Pinerez, Geanette Cleotilde; Casselgren, Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-17)
      One of the main challenges in developing efficient and effective winter road maintenance is to design an accurate prediction model for the road surface friction coefficient. A reliable and accurate prediction model of road surface friction coefficient can help decision support systems to significantly increase traffic safety, while saving time and cost. High dynamicity in weather and road surface ...
    • Adjusted Iterated Greedy for the optimization of additive manufacturing scheduling problems 

      Kuo-Ching, Ying; Fabio, Fruggiero; Pourhejazy, Pourya; Bo-Yun, Lee (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-19)
      As a disruptive technology, additive manufacturing (AM) is revolutionizing manufacturing supply chains. AM consists of producing 3-dimensional objects through layer-by-layer addition of compound material based on digital models. The scheduling of additive manufacturing operations differs from traditional (i.e., subtractive and injection molding) manufacturing with a single production run involving ...
    • Advanced Model Predictive Control Algorithm for Inverters as a Low-cost Solution in ZynQ 

      Hoff, Bjarte (Conference object; Konferansebidrag, 2016)
    • Aerodynamic forces on iced cylinder for dry ice accretion – A numerical study 

      Sokolov, Pavlo; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-28)
      Within this paper the ISO 12494 assumption of standard of slowly rotating reference collector under ice accretion has been tested. This concept, introduced by (Makkonen, 1984), suggests that the power line cables, which are the basis of the “reference collector” in the ISO framework, are slowly rotating under ice load, due to limited torsional stiffness. For this purpose, several Computational Fluid ...
    • Aerodynamic Modeling and Estimation of a Fixed-wing UAV 

      Andersen, Tom Stian (Master thesis; Mastergradsoppgave, 2013-06-20)
    • Affordances for capturing and re-enacting expert performance with wearables 

      Guest, Will; Wild, Fridolin; Vovk, Alla; Fominykh, Mikhail; Limbu, Bibeg; Klemke, Roland; Sharma, Puneet; Karjalainen, Jaakko; Smith, Carl; Rasool, Jazz; Aswat, Soyeb; Helin, Kaj; Di Mitri, Daniele; Schneider, Jan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-05)
      The WEKIT.one prototype is a platform for immersive procedural training with wearable sensors and Augmented Reality. Focusing on capture and re-enactment of human expertise, this work looks at the unique affordances of suitable hard- and software technologies. The practical challenges of interpreting expertise, using suitable sensors for its capture and specifying the means to describe and display ...
    • All electric battery service vessel - Dynamic modeling of a battery fed IPMSM propulsion plant as a tool for energy estimates and functional description for an energy management system 

      Breines, Anders (Master thesis; Mastergradsoppgave, 2017-06-12)
      "Designing an all-electric battery vessel, knowledge of the dynamic performance of the electrical propulsion plant becomes crucial to produce adequate estimates of needed battery capacity. An energy management system is to control the on-board power flow and ensure energy efficient operation of the vessel. This thesis presents a solution for dynamic simulation of an all-electric battery vessel based ...
    • Altering perceptions, visualizing sub-ground metal objects 

      Pedersen, Aleksander (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06)
      Smart phones and sensor technology represent a key part of everyday life and are being used in areas such as safety, training, healthcare and others. Utilizing an array of internal sensors and a metal detector requires an evaluation of the precision of the measurements and performance reviews. Metal detectors are versatile, with uses in healthcare as well as recreational, but a common issue often ...
    • An Empirical Study on the Impact of Cultural Types on Resources Integration Model 

      Solvang, Wei Deng; Zhan, Yan; Lu, Jiansha (Journal article; Peer reviewed; Tidsskriftartikkel, 2012)
      From the perspective of Resource-based Theory (RBT), organizational culture can be a source of sustained competitive advantage. And resources integration models, divided by property rights of resource, not firm boundary, as internal and external resources integration models, are presented as being specific in different cultural contexts. However, the litera- ture review shows the absences of an ...
    • Analyse og optimalisering av varmesystem ved Vigør Rehabiliteringssykehus 

      Berntsen, Alexander (Master thesis; Mastergradsoppgave, 2023-05-12)
      Grunnet økningen i energipriser og økt press om å nå klimamål, har energiøkonomisering i bygg blitt et samfunnsaktuelt tema. Masteroppgaven bruker Vigør Rehabiliteringssykehus vannbårne varmeanlegg som et eksempelstudie, der formålet med oppgaven er å forenkle driften, redusere energiforbruket og kutte energikostnadene tilknyttet varmeanlegget. Siden 2000-tallet er et er gjort en rekke forsøk på å ...
    • Analysis and Optimization of Sandwich Panels. Final report. 

      Røsdal, Arild (Master thesis; Mastergradsoppgave, 2017-06-15)
      "The first part of this project, are general about sandwich structures. A sandwich construction, consist of two plate outsides (facings) glued to a core in the middle. Sandwiches are used in construction that must have a low weight, but a high stiffness. This indicated racing cars, aeroplane, ship shelters. To understand a sandwich construction, the basis, is to understand the sandwich beam. The are ...
    • 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 ...
    • Analysis of early-age properties of geopolymers with various waste materials 

      De Muynck, Dario; Heyndrickx, Marie-Laure (Master thesis; Mastergradsoppgave, 2023-05-14)
      As the demand for concrete increases to meet the expanding need, the environmental impact of its production cannot be ignored. The use of ordinary Portland cement (OPC) is known to deplete natural resources and release large amounts of CO2 into the atmosphere. Geopolymer concrete (GPC), made from waste and industrial by-products, has shown the potential to overcome the environmental issues associated ...