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    • Lagrangian and ALE Formulations For Soil Structure Coupling with Explosive Detonation 

      Souli, M; Albahkali, E; Shahrour, I; Moatamedi, Mojtaba (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      Simulation of Soil-Structure Interaction becomes more and more the focus of computational engineering in civil and mechanical engineering, where FEM (Finite element Methods) for soil and structural mechanics and Finite Volume for CFD (Computational Fluid Dynamics) are dominant. New advanced formulations have been developed for FSI (Fluid Structure Interaction) applications using ALE (Arbitrary ...
    • Langsiktig effekt av energifokus for hotellbygg 

      Kjær, Jonas (Master thesis; Mastergradsoppgave, 2021-05-15)
      Oppgaven skal undersøke langsiktig effekt av energifokus for Quality Hotel Harstad, som er prosjektert etter Byggteknisk forskrift (TEK17). Energiberegningsverktøyet SIMIEN er anvendt for å analysere energibehovet til hotellet, og kartlegge hvilke energibesparendetiltak som gir høyest effekt. Hovedmålet er å vurdere hvilke tiltak som bør iverksettes for å heve hotellets energiklasse fra B til A i ...
    • Large deviations for Markov jump processes in periodic and locally periodic environments 

      Piatnitski, Andrei; Pirogov, Sergei; Zhizhina, Elena (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12)
      The paper deals with a family of jump Markov process defined in a medium with a periodic or locally periodic microstructure. We assume that the generator of the process is a zero order convolution type operator with rapidly oscillating locally periodic coefficient and, under natural ellipticity and localization conditions, show that the family satisfies the large deviation principle in the path space ...
    • Large-Scale Additive Manufacturing Machine 

      Plotnikov, Dmitri (Master thesis; Mastergradsoppgave, 2018-08-21)
      This master thesis contains an overview of the additive manufacturing technology and building process of the large-scale Fused Deposition Modelling (FDM) additive manufacturing machine from the old Wafer Handling Diffusion machine. The thesis study is mainly focused on practical work and describes the techniques used during the project execution. The built machine can print large 3D prototypes from ...
    • Large-scale Wind Power Integration in Northern Norway 

      Singh, Arwinder (Master thesis; Mastergradsoppgave, 2018-08-16)
      Norway has very high flexibility in energy production since hydropower covers about 95% of yearly energy demand. It is best to have a combination of wind and hydropower and hence it applies perfectly here in Norway. The performance of the wind farm can be significantly enhanced by employing full-capacity converters. The state-of-the-art literature study has been done on Squirrel Cage Induction ...
    • Last Mile Distribution of COVID-19 Vaccines: A Cold Chain Logistical Challenge 

      Andoh, Eugenia Ama (Master thesis; Mastergradsoppgave, 2021-05-18)
      The COVID-19 pandemic is a global health and humanitarian crisis that has wreaked havoc on economies and industries around the world. This study aims to address the distribution of the COVID-19 vaccines at the last mile by evaluating the vaccine supply chain and how it can be effectively utilized to address the last mile distribution of the COVID-19 vaccines through simulation. The first part includes ...
    • Lavenergi brannstasjon i Narvik 

      Kvitvik, Kenth I. Ljunggren (Master thesis; Mastergradsoppgave, 2017-06-07)
      Energibruken i Norge har steget med 40 % siden 1970-årene, og bygningssektoren legger beslag på om lag 38 % av den totale energibruken i Norge. På bakgrunn av denne utviklingen ble kapittelet for energikrav revidert i teknisk forskrift fra 1. Januar 2016. De nye energikravene hadde ett års overgangstid hvor de gamle energikravene (TEK 10) kunne benyttes, og de nye energikravene (TEK 16) gjelder i ...
    • LCC-analyse for varmepumpeanlegg 

      Hjertnes, Jostein Karlsen (Master thesis; Mastergradsoppgave, 2021-05-18)
      EU har som mål å redusere klimagassutslippene med minimum 40 prosent innen 2030 sammenlignet med 1990. Dette har medført til en rekke endringer i byggebransjen, som blant annet utvikling av bygg med vesentlig lavere energibehov enn tidligere. Samtidig har det termiske energiforsyningssystemet fått mer fokus. Deriblant identifiseres varmepumper som nøkkelteknologi for å nå kravene til EUs ...
    • Learning social codes for self-interested agents 

      Granmo, Gisle Jaran (Master thesis; Mastergradsoppgave, 2021-05-18)
      This thesis will explore interaction between non-supervised machinelearning agents, with a focus on traffic situations. We intend to showthat self-interested agents can arrive at mutually beneficial strategiesaccording to general game theory, achieving pure or mixed Nash equi-libria, and that this has practical applications for unmanned vehicles.We will start by verifying against simple one stage ...
    • Learning Through Action: On the Use of Logistics4.0 Lab as Learning Developer 

      Peron, Mirco; Alfnes, Erlend; Sgarbossa, Fabio (Chapter; Bokkapittel, 2022-01-01)
      The concept of learning factory is taking more and more hold as teaching method, especially after the advent of Industry 4.0 (I4.0). Learning factories have in fact proved to be effective in developing knowledge and skills necessary for students to master the potentialities of adopting new I4.0 technologies in several aspects of production and logistics systems. Driven by these potentialities and ...
    • Limit behaviour of diffusion in high-contrast periodic media and related Markov semigroups 

      Piatnitski, Andrey; Pirogov, S; Zhizhina, Elena (Journal article; Tidsskriftartikkel; Peer reviewed, 2019)
      The goal of the paper is to describe the large time behaviour of a symmetric diffusion in a high-contrast periodic environment and to characterize the limit process under the diffusive scaling. We consider separately the C0 and the L2 settings.
    • Line Balancing Problem with Multi-Manned Workstations and Resource Constraints: The Case of Electronics Waste Disassembly 

      Yin-Yann, Chen; Pourhejazy, Pourya; Liu, Tzu-Ning (Journal article; Tidsskriftartikkel, 2023-12-14)
      The increasing public awareness of environmental protection and the scarcity of rare earth elements have made closed-loop supply chains a necessity in many sectors. In particular, recycling components and parts from end-of-life consumer electronics have drawn the attention of both academics and practitioners. Disassembly line balancing improves the resource efficiency of recycling operations. This ...
    • A Literature Review on Technologies in Future Small-scale Intelligent Manufacturing Systems 

      Kerezovic, Tanja; Sziebig, Gabor (Peer reviewed; Chapter; Bokkapittel, 2018-02-05)
      Emergence of global markets forces businesses to become more flexible and adaptive to constantly changing demands and environments. In order to do so, enterprises turn towards application of newest technologies in manufacturing in order to make them intelligent. Since Small and Medium Enterprises play the central role in the domain of European manufacturing, the question arises – based on their ...
    • Load modeling from smart meter data using neural network methods 

      Kianpoor, Nasrin; Hoff, Bjarte; Østrem, Trond (Chapter; Bokkapittel, 2021)
      Electricity load modeling plays a critical role to conduct load forecasting or other applications such as non-intrusive load monitoring. For such a reason, this paper investigates a comparison study of two common artificial neural network methods (Multilayer perceptron (MLP) and radial basis function neural network (RBF-NN) for home load modeling application. The accuracy of load modeling using ...
    • Local energy markets as a solution for increased energy efficiency and flexibility 

      Ilieva, Iliana; Bremdal, Bernt Arild; de la Nieta Lopez, A.A.S.; Simonsen, S.H. (Journal article; Peer reviewed, 2019)
      With increasing share of distributed renewable energy resources in the grid and arising energy consumer awareness on environmental challenges new market models are sought where energy can be traded in an efficient and end-user centric way. This trend, together with the increasing consciousness on the benefits of local consumption and production has given rise to an increased focus on local energy ...
    • Local Flexibility Market Design for Aggregators Providing Multiple Flexibility Services at Distribution Network Level 

      Olivella-Rosell, Pol; Lloret-Gallego, Pau; Munne-Collado, Ingrid; Villafafila-Robles, Roberto; Sumper, Andreas; Ottesen, Stig Ødegaard; Rajasekharan, Jayaprakash; Bremdal, Bernt Arild (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-02)
      This paper presents a general description of local flexibility markets as a market-based management mechanism for aggregators. The high penetration of distributed energy resources introduces new flexibility services like prosumer or community self-balancing, congestion management and time-of-use optimization. This work is focused on the flexibility framework to enable multiple participants to compete ...
    • Local refinement of ERBS curves 

      Dalmo, Rune (Journal article; Peer reviewed; Chapter, 2013-12-31)
      Expo-rational B-splines (ERBS) provide a blending type construction where local functions at each knot are blended together by infinitely smooth basis functions. In this work we consider some specific ERBS curves that are approximations of parametric curves. We study local refinement to increase flexibility by inserting local control curves at points of interest on the ERBS curve. Inserting knots ...
    • Localization, Navigation and Activity Planning for Wheeled Agricultural Robots – A Survey 

      Tahir, Syed Abdur Rahman (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11)
      High cost, time intensive work, labor shortages and inefficient strategies have raised the need of employing mobile robotics to fully automate agricultural tasks and fulfil the requirements of precision agriculture. In order to perform an agricultural task, the mobile robot goes through a sequence of sub operations and integration of hardware and software systems. Starting with localization, ...
    • Location-based analysis and optimization of service network performance: A case study 

      Yang, Shuo; Yu, Hao; Solvang, Wei Deng (Peer reviewed; Book; Chapter, 2018-05-07)
      The location problem of service network has been extensively focused by researchers in operational research due to the difficulty in balancing the level of service and efficiency. On the one hand, installing a large number of service facilities within the service network improves availability and responsiveness to customer demands, but it also increases the investment and operating cost. While on ...
    • Logistic Service at Ports in Northern Norway. Case Study of the Port of Narvik 

      Knapskog, Knut Arthur (Master thesis; Mastergradsoppgave, 2018-06-01)
      This thesis is a part of the Master of Science degree in Industrial Engineering at the University of Tromsø – The arctic University of Norway, Campus Narvik. The aim of this thesis is to improve the logistic service and increase the competitiveness of ports in Northern Norway in order to attract more port users. A literature review on the topics of logistics in seaports is presented, along with an ...