Now showing items 80-99 of 919

    • Building a Low-Cost Ground Station for Weather Satellite Image Reception 

      Zahid, Ezzatullah (Master thesis; Mastergradsoppgave, 2019-06-27)
      In this Thesis, a small, low-cost, portable and easily deployable ground station was built, to track and receive signals from National Oceanic and Atmospheric Administration (NOAA) weather satellites (series 15, 18 and 19) in VHF and UHF bands, process and convert these to images are presented. A ground station, capable of receiving reasonably good quality images from NOAA weather satellites was ...
    • Building Information Modelling : Indoor Localization 

      Khadka, Jeewan (Master thesis; Mastergradsoppgave, 2021-05-19)
      This thesis presents an integrated system where BIM software is used together with IoT devices to visualize data generated in real-time. Two different IoT devices are modelled as case study that collect environmental and localization data. These devices were installed inside a Test room of an area approx. 22 m2 in UiT Narvik premises . The collected data were, filtered & transferred to database ...
    • A Business Model for Small and Medium-Sized Manufacturers (SMEs) in Sparsely Populated Areas in Northern Norway 

      Liu, Jiawen (Master thesis; Mastergradsoppgave, 2017-06-14)
      As Northern Norway is considered as a low population density area with small and dispersed settlement structures, dispersed economic foundation with simplification, and focus on primary production. Manufacturing firms in Northern Norway are predominantly Small and Medium-Sized Enterprise (SMEs). With the development of globalization and the industry 4.0 trends, manufacturing industry focus more on ...
    • Byggetekniske løsninger for kalde og arktiske strøk (Building design & solutions for cold and arctic environment) 

      Sara, Bernt Ailu Utsi; Blegeberg, Magnus Moland (Master thesis; Mastergradsoppgave, 2019-06-27)
      In recent years, there has been an increacing focus on environmental issues and the ongoing climate change. With predictions of increasing rainfall and more extreme weather, this poses a greater risk of damage to buildings, which again places stricter requirements on construction details. In Norway, there has been focus on construction in cold and arctic regions, and the impact on existing buildings ...
    • Byggteknisk droneinspeksjon 

      Høiseth, Hege Therese (Master thesis; Mastergradsoppgave, 2022-05-16)
      Hjelpemidler og utstyr i byggebransjen er i stadig endring. Muligheten for å kunne gjennomføre byggtekniske inspeksjoner på en bedre måte er på god vei, nemlig ved bruk av droner. Droneinspeksjoner har blitt mer vanlig i de siste årene, da særlig på grunn av kostnadsbesparelse og innovasjon. Tema for denne oppgaven er byggteknisk droneinspeksjon, og hvilke fordeler og ulemper er det ved bruk av ...
    • Bygningsfysiske utfordringer i forbindelse med kalde garasjeanlegg 

      Pettersen, Emil; Pettersen, Bjørn Anders (Master thesis; Mastergradsoppgave, 2019-06-26)
      "Årlig koster byggeskader samfunnet 17 milliarder, gjennom undersøkelser utført av SINTEF byggforsk er det konkludert med at 65-70 prosent av disse byggeskadene skyldes fukt (TU, 2017). Bygge skader som dette har resultert i at Plan og bygningsloven (PBL) og Direktoratet for byggkvalitet (DIBK) utarbeidet en ny forskrift som trådte i kraft pr. 1.1.2013 som ett tiltak på å redusere bygge skader. ...
    • Bærekraftig rehabilitering av høyblokker 

      Erdal, Eirik Friis (Master thesis; Mastergradsoppgave, 2021-05-14)
      Denne oppgaven handler om forskjellige skademekanismer i betong og hvordan kartlegge disse samt hvilke metoder som brukes for å utbedre disse. Det er også tatt utgangspunkt i en eldre betongblokk på åtte etasjer som brukes som studentboliger av Norges Arktiske Studentsamkipnad i Tromsø. Denne betongblokken er bygget i 1972 og har behov for omfattende rehabilitering av utvendige bærende betongsøyler ...
    • Cable Propelled Gondola System Operation in Icing Conditions 

      Azad, Zeeshan; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-30)
      The scope of this study comprehends problems associated with modern urban vehicles known as cable propelled gondolas system operations in icing conditions. The aspects under consideration are problems related to the operations, safety, and maintenance of cable car systems in harsh climate conditions. The geographical location of the gondola cars makes them vulnerable to severe weather conditions ...
    • Capacitive power transfer for maritime electrical charging applications 

      Al-Sallami, Hussein (Doctoral thesis; Doktorgradsavhandling, 2023-07-07)
      Wireless power transfer can provide the convenience of automatic charging while the ships or maritime vehicles are docking, mooring, or in a sailing maneuver. It can address the challenges facing conventional wired charging technologies, including long charging and queuing time, wear and tear of the physical contacts, handling cables and wires, and electric shock hazards. Capacitive power transfer ...
    • A Carbon-Constrained Stochastic Optimization Model with Augmented Multi-Criteria Scenario-Based Risk-Averse Solution for Reverse Logistics Network Design under Uncertainty 

      Yu, Hao; Solvang, Wei Deng (Journal article; Peer reviewed; Tidsskriftartikkel, 2017-07-10)
      With the increase of the concern from the public for environmental pollution and waste of resources, the value recovery through reuse, repair, remanufacturing and recycling from the end-of-use (EOU) and end-of-life (EOL) products have become increasingly important. Reverse logistics is the process for capturing the remaining value from the EOU and EOL products and also for the proper disposal of the ...
    • Cascade-Based Controlled Attitude Synchronization and Tracking of Spacecraft in Leader-Follower Formation 

      Schlanbusch, Rune; Nicklasson, Per Johan; Loria, Antonio (Journal article; Peer reviewed; Tidsskriftartikkel, 2011)
    • Cascade-Based Controlled Attitude Synchronization and Tracking of Spacecraft in Leader-Follower Formation 

      Schlanbusch, Rune; Loria, Antonio; Nicklasson, Per Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-05-05)
      We propose controllers for leader-follower attitude synchronization of spacecraft formations in the presence of disturbances, that is, the leader spacecraft is controlled to follow a given reference, while a follower spacecraft is controlled to synchronize its motion with the leader’s. In the ideal disturbance-free scenario, we show that synchronization takes place asymptotically. Moreover, we ...
    • Cascaded Model Predictive Control of Grid Connected Converter with LCL Filter 

      Hoff, Bjarte (Peer reviewed; Book; Chapter, 2018-12-31)
      This paper presents a control strategy for grid connected voltage source converters with LCL filter, based on a cascade of two model predictive controllers (MPC). Despite the attention MPC has received in the research community over the last years, there are still raised question about what advantages such control methods can offer, compared to existing established control strategies. The cascaded ...
    • A case study to estimate thermal conductivity of ABS in Cold Climate Chamber 

      Mughal, Umair Najeeb; Makarova, Marina; Virk, Muhammad Shakeel; Polanco Pinerez, Geanette (Journal article; Peer reviewed; Tidsskriftartikkel, 2015-10-22)
      Non steady state thermal conductivity of ABS was estimated using an analytical approach in a Cold Climate Chamber at ?10?C and ?14?C. Two hollow cylinders of ABS of varying thickness were used to estimate the conductivity. The material was porous but the porosity was unknown. This paper is a case study to understand, if it is reasonable to estimate the thermal conductivity using the analytical varying ...
    • Case study: Optimization of End-of-line Packaging in Fishery Industry 

      Sziebig, Gabor; Kerezovic, Tanja (Peer reviewed; Bokkapittel; Chapter, 2016)
      Application of automation in SMEs working in fish industry is not in advanced state as in other fields of production and manufacturing industries. Due to expensive equipment, high labor costs of engineers required to implement such features into production lines, and low-quantity contracts, introduction of automation technologies is in large part of these companies is absent. This paper analyses ...
    • CFD modelling of pollutant transport 

      Madsen, Synne; Khawaja, Hassan (Conference object; Konferansebidrag, 2018)
      With the increase of the human activities in the Arctic, including land and sea, is resulting in higher release of pollutants to the environment. These pollutants can be categorised as gases released in the air such as carbon dioxide, sulphur dioxide, NOx, etc., and waste released in seas such as chemical toxins, microplastic, etc. This work presents a computational fluid dynamics (CFD) study ...
    • CFD modelling of pollutant transport from a docked marine vessel: Multiphysics 2019 [poster] 

      Madsen, Synne; Asier, Zubiaga; Khawaja, Hassan; Boiger, Gernot (Conference object; Konferansebidrag, 2019)
      With the increase of the human activities in the Arctic, including land and sea, is resulting in higher release of pollutants to the environment. These pollutants can be categorised as gases released in the air such as carbon dioxide, sulphur dioxide, NOx, etc., and waste released in seas such as chemical toxins, microplastic, etc. This work presents a computational fluid dynamics (CFD) study ...
    • A CFD Study of Preventing Snow Accumulations on Roofs using Airflows 

      Sjøveian, Andreas; Andleeb, Zahra; Khawaja, Hassan Abbas; Moatamedi, Mojtaba (Conference object; Konferansebidrag, 2023-12)
      Today, there is an abundance of roof designs for buildings, each possessing distinct characteristics when subjected to snowy and cold conditions. Snow buildup on roofs poses various risks, including structural damage and personal injuries. Snow loads can lead to severe building damage or even collapse. The presence of intricate roof shapes and valleys exacerbates the potential harm caused by snow. ...
    • Characteristics of fragmented aurora-like emissions (FAEs) observed on Svalbard 

      Dreyer, Joshua; Partamies, Noora; Whiter, Daniel; Ellingsen, Pål Gunnar; Baddeley, Lisa; Buchert, Stephan C. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-04)
      This study analyses the observations of a new type of small-scale aurora-like feature, which is further referred to as fragmented aurora-like emission(s) (FAEs). An all-sky camera captured these FAEs on three separate occasions in 2015 and 2017 at the Kjell Henriksen Observatory near the arctic town of Longyearbyen, Svalbard, Norway. A total of 305 FAE candidates were identified. They seem to appear ...
    • Charge Transfer Scheme for Atmospheric Ice Sensing 

      Mughal, Umair Najeeb; Virk, Muhammad Shakeel; Rashid, Taimur (Peer reviewed; Journal article; Tidsskriftsartikkel, 2015-01-31)
      The atmospheric icing parameters are being measured nowadays with the aid of more customized yet limited commercial equipment. The parameters include atmospheric ice detection, icing load and icing rate. The robustness of such equipment is usually under scrutiny when it comes to cold/harsh environment operations. This phenomenon was experienced consistently by the atmospheric Icing Research Team at ...