Viser treff 308-327 av 916

    • A flexible autonomous robotic observatory infrastructure for bentho-pelagic monitoring 

      Aguzzi, Jacopo; Albiez, Jan; Flögel, Sascha; Godø, Olav Rune; Grimsbø, Endre; Marini, Simone; Pfannkuche, Olaf; Rodriguez, Erik; Thomsen, Laurenz; Torkelsen, Terje; Valencia, Javier; López-vázquez, Vanesa; Wehde, Henning; Zhang, Guosong (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-13)
      This paper presents the technological developments and the policy contexts for the project “Autonomous Robotic Sea-Floor Infrastructure for Bentho-Pelagic Monitoring” (ARIM). The development is based on the national experience with robotic component technologies that are combined and merged into a new product for autonomous and integrated ecological deep-sea monitoring. Traditional monitoring is ...
    • The FlexNett Simulator 

      Bremdal, Bernt Arild; Tangrand, Kristoffer (Journal article; Peer reviewed, 2019)
      This paper documents research conducted in the Norwegian FLEXNETT project.<br>It describes a new tool that was developed to study the future impact of prosumers with PV panels on the grid in Norway and the potential energy flexibility that lies with residential prosumers. Systematic use of energy flexibility can be an important instrument for managing peak loads and voltage problems in weak power ...
    • Fluid solid interaction simulation of CFRP shell structure 

      Khawaja, Hassan Abbas; Messahel, Ramzi; Souli, Mhmed; Al-Bahkali, Essam; Moatamedi, Mojtaba (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      This work attempts to model the dynamic behavior of Carbon Fiber Reinforced Polymer (CFRP) shell structure subjected to water shock wave to improve the results presented in the study by Khawaja et al., 2014. In the previous study, the real physical problem was simplified by decoupling the fluid and the structural phenomena, applying the recorded experimental fluid pressure load to the CFRP shell ...
    • Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage 

      Myrli, Odd Einar; Khawaja, Hassan (Journal article; Peer reviewed, 2019)
      The number of good sites in less exposed locations for aquaculture farming is limited. Trends are now that the fish cages are increasing in both width and depth, as well as more weather-exposed locations, are taken into use. As the net cages continue to increase in size, so does the material costs. The design of the sea cages should be modified for safe and reliable use in remote offshore locations. ...
    • Fluid-Structure Interaction (FSI) of Aquaculture Net Cages [poster} 

      Myrli, Odd Einar; Khawaja, Hassan (Conference object; Konferansebidrag, 2018)
      The number of good sites in less exposed locations for aquaculture farming is limited. Trends are now that the fish cages are increasing in both width and depth as well as more weather-exposed locations, are taken into use. As the net cages continue to increase in size, so does the material costs. The design of the sea cages should be modified for safe and reliable use in remote offshore locations. ...
    • Fluid-structure Interaction for Water Hammers Effects in Petroleum and Nuclear Plants 

      Messahel, Ramzi; Cohen, B; Souli, M; Moatamedi, Mojtaba (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-12-31)
      Fluid-Structure Interaction (FSI) becomes more and more the focus of computational engineering in Petroleum and Nuclear Industry in the last years. These problems are computer time consuming and require new stable and accurate coupling algorithms to be solved. For the last decades, the new development of coupling algorithms, and the increasing of computer performance have allowed to solve some ...
    • Fluorescent marking of roads in high-north 

      Khawaja, Hassan; Varughese, Bindu Sara; Edvardsen, Kåre (Conference object; Konferansebidrag, 2017)
      The project objective is to investigate into luminescent coating materials that can be used in marking the roads in high-north. The idea of the project is not entirely new, and efforts have been worldwide to find an energy efficient solution to the street lights. Earlier work conducted in the Netherlands showed quite promising results. However, the challenges include weatherproofing the coat such ...
    • FPGA-based data acquisition system for GNSS receiver for LEO-satellites applications 

      Siboniyo, Didier (Master thesis; Mastergradsoppgave, 2017-06-12)
      The modern Low Earth Orbit satellites (LEO-satellites) technology is highly complex and reliable than it was yesterday. Nowadays, the LEO-satellites applications extend from civilian to military applications. However, LEO-satellites require a Global Navigation Satellite System (GNSS) service, to achieve various tasks which require positioning and localizing. The challenge is to have a GNSS receiver ...
    • FPGA-based tracking system for GNSS receivers 

      Manandhar, Anil (Master thesis; Mastergradsoppgave, 2017-06-12)
      This report presents the design and simulation of code and carrier tracking system for a GNSS receiver. The GNSS receiver processes the signal sent by satellites in space. These signal contain carrier wave signal, ranging code and navigation data in encrypted form. To demodulate the navigation data, the processing block should accurately track the phase of incoming code and the frequency of incoming ...
    • Frame and casing design of second life battery energy storage systems 

      Kurup, Anirudh (Master thesis; Mastergradsoppgave, 2021-05-20)
      The design of the frame and casing for two types of battery storage systems was carried out through a product development process on behalf of RePack AS. The primary design objectives were clarified using an objective tree method. The main functions of the designs were explored, and the product requirements were compiled stating the various demands and wishes pertaining to the products. Design ...
    • Framework for Modeling and Simulation of Household Appliances 

      Bjerknes Nilsen, Christian; Hoff, Bjarte; Østrem, Trond (Peer reviewed; Book; Chapter, 2018-12-31)
      This paper describes a framework for simulating household appliances in Simulink. Typical Norwegian household equipment have been analyzed based on their characteristic behavior, to establish the requirement for synthesizing and recreating their current waveform, harmonic currents and phase shift. Both detailed simulation of the current waveform and RMS currents for simulation over longer time periods ...
    • Framework for Modeling and Simulation of Household Appliances 

      Bjerknes Nilsen, Christian; Hoff, Bjarte; Østrem, Trond (Peer reviewed; Chapter, 2018-12-31)
      This paper describes a framework for simulating household appliances in Simulink. Typical Norwegian household equipment have been analyzed based on their characteristic behavior, to establish the requirement for synthesizing and recreating their current waveform, harmonic currents and phase shift. Both detailed simulation of the current waveform and RMS currents for simulation over longer time periods ...
    • Fremdriftsplanlegging – 4D BIM. Byggeprosjekter: effektivisere fremdriften i den operative planleggingen ved bruk av digitalisering 

      Hong, Daniel (Master thesis; Mastergradsoppgave, 2017-06-08)
      Oppgaven retter fokus mot hvordan vi tradisjonelt planlegger fremdriften i byggeprosjekter i dag, og hvordan digitale verktøy som 4D BIM klarer å effektivisere planleggingen. I tillegg vil også Lean filosofien befinne seg i ulike planleggingsmetoder, man ønsker å skape verdi både for selskapet, kundene og alle andre deltakere som er involvert i prosjektet. Dermed ønsker man å skape flyt i produksjonen ...
    • Fremtidens bygningsmaterialer 

      Gjerde, Klaus (Master thesis; Mastergradsoppgave, 2019-06-07)
      Bakgrunnen for oppgaven har vært å undersøke fremtidige bygningsmaterialer. Her er isolasjonsmaterialer og konstruksjonsmaterialer som betong, stål og massivtre gjennomgått. Det har i tillegg vært gjennomført et caseprosjekt hvor gjenbrukspotensialet for en bygning brukt i caseprosjektet har blitt vurdert. Videre ble livsløpsvurderinger for bygningen i caseprosjektet vurdert opp mot en tilsvarende ...
    • Fremtidens fleksible distribusjonsnett : fleksibel nettdrift, forbrukerfleksibilitet, plusskunder og forretningsmodeller 

      Sæle, Hanne; Bremdal, Bernt Arild; Tøndel, Inger Anne; Istad, Maren Kristine; Foosnæs, Jan Andor; Nordbø, Per Erik; Kirkeby, Henrik; Høverstad, Boye Annfelt; Mathisen, Geir (Research report; Forskningsrapport, 2016-02-15)
      Denne rapporten er utarbeidet i WP1 og WP2 i prosjektet "Fleksibilitet i fremtidens smarte distribusjonsnett - FlexNett" (2015-2017). FlexNett-prosjektet har som målsetting å bidra til økt fleksibilitet i fremtidens smarte distribusjonsnett gjennom å demonstrere og verifisere tekniske og markedsmessige løsninger for fleksibilitet på ulike nivå i nettet til nytte for ulike aktører. <br> Målsettingen ...
    • Frequency Support of Fast-Multi-Energy Storage Systems in Low Rotational Inertia Scenarios 

      Ersdal, Anne Mai; Acosta Montalvo, Martha Nohemi; Gonzalez-Longatt, Francisco; Torres, José Luis Rueda; Palenski, Peter (Peer reviewed; Chapter, 2020-11-10)
      Modern power systems are increasing the connection of power electronic converters (PECs), and new inertia-less technologies displace the synchronous generation units. Therefore, the total rotational system inertia is reduced, creating new problems related to the system frequency control and stability. Several mechanisms to enable the PECs with frequency sensible control loops have been proposed in ...
    • Fuel cell technology application for Dubai rail systems 

      Mustafa, Mohamad; Al-Mahadin, Aziz; Kanstad, Bjørn Eirik; Calay, Rajnish K (Peer reviewed; Chapter, 2018-06-11)
      Heat engines, such as internal combustion engines, have significant adverse effects on the environment due to their heat and harmful emissions. In addition, they are dependent on energy from fossil resources, which are depleting rapidly and they are not being properly utilized due to the relatively low efficiency of heat engines usually expressed by Carnot's efficiency. The low temperature direct ...
    • Fuktskader i kompakte tak 

      Fjelde, Martin Jonassen (Master thesis; Mastergradsoppgave, 2016-11-17)
      Fuktproblemer er et av de mest kompliserte områdene innenfor bygningsfysikken i dag. I denne rapporten er det gjort vurderinger av materialvalg og løsninger når man bygger med kompakte tak. Det er også presentert typiske fuktskader i kompakte tak og utbedrende tiltak for disse. I denne oppgaven er det brukt metoder som litteraturstudie, intervjuer og casestudie. Moisture problems are one of the ...
    • Future Role of Application of New Technologies in Small-and Medium Scale Manufacturing Systems - Regarding Intelligent and Advanced Manufacturing Systems in Northern Peripheral Area 

      Somlò, Kinga; Sziebig, Gabor (Conference object; Konferansebidrag, 2017-08-08)
      Nowadays the concept of Industry 4.0. and the relating intelligent manufacturing system are getting more and more current and well-known. In the past years the outstanding development of different areas such as information technology computer science, machining, robotics and so on, made possible a comprehensive transformation of the manufacturing systems. Present paper aims to give a general overview ...
    • A Fuzzy-Stochastic Multi-Objective Model for Sustainable Planning of a Closed-Loop Supply Chain Considering Mixed Uncertainty and Network Flexibility 

      Yu, Hao; Solvang, Wei Deng (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-11)
      Closed-loop supply chain network design (CLSCND) has been increasingly spotlighted over the latest decade. The focus has been given to maximize the economic performance, resource utilization and sustainability through incorporating a holistic decision-making on both forward and reverse logistics. In this paper, a new fuzzy-stochastic multi-objective mathematical model is formulated for sustainable ...