Now showing items 14301-14320 of 36958

    • Mitochondrial dynamics and quantification of mitochondria-derived vesicles in cardiomyoblasts using structured illumination microscopy 

      Opstad, Ida S.; Godtliebsen, Gustav; Ahluwalia, Balpreet Singh; Myrmel, Truls; Agarwal, Krishna; Birgisdottir, Åsa Birna (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-12)
      Mitochondria are essential energy-providing organelles of particular importance in energy-demanding tissue such as the heart. The production of mitochondria-derived vesicles (MDVs) is a cellular mechanism by which cells ensure a healthy pool of mitochondria. These vesicles are small and fast-moving objects not easily captured by imaging. In this work, we have tested the ability of the optical ...
    • Space Science & Technology in the Arctic: Promises of Cooperation and Development amid New Security Challenges 

      Bertelsen, Rasmus Gjedssø (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-12)
      Space science and technology (S & T) holds great potential for international scientific cooperation in the Arctic, especially concerning climate change. Space-based earth observation, navigation/positioning and communication is of great value to Arctic local and indigenous communities. Space-based S & T is also a prerequisite for development of Arctic shipping and natural resources.<p> <p>At the ...
    • Can a key boreal Calanus copepod species now complete its life-cycle in the Arctic? Evidence and implications for Arctic food-webs 

      Tarling, Geraint A.; Freer, Jennifer J.; Banas, Neil S.; Belcher, Anna; Blackwell, Mayleen; Castellani, Claudia; Cook, Kathryn B.; Cottier, Finlo Robert; Daase, Malin; Johnson, Magnus L.; Last, Kim S.; Lindeque, Penelope K.; Mayor, Daniel J.; Mitchell, Elaine; Parry, Helen E.; Speirs, Douglas C.; Stowasser, Gabriele; Wootton, Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-29)
      The changing Arctic environment is affecting zooplankton that support its abundant wildlife. We examined how these changes are influencing a key zooplankton species, Calanus finmarchicus, principally found in the North Atlantic but expatriated to the Arctic. Close to the ice-edge in the Fram Strait, we identified areas that, since the 1980s, are increasingly favourable to C. finmarchicus. Field-sampling ...
    • Symbolpolitikk spenner bein for økt sysselsetting av flere flyktninger 

      Fedreheim, Gunn Elin; Hansen, Tina (Chronicle; Kronikk, 2020)
      I Norge har de fleste regjeringer siden starten på 1990-tallet hatt som målsetting at alle skal i arbeid. Denne «arbeidslinja» har vært et kjennetegn ved den norske velferdsmodellen, og grunntanken er at alle skatter, trygder og overføringer skal være utformet slik at det lønner seg å jobbe heller enn å være utenfor arbeidsmarkedet. For norske kvinner har denne politikken blant annet bidratt til ...
    • Energiøkonomiserende tiltak for kommunal bygg (Energy saving measures for municipal buildings) 

      Swensen, Åge (Master thesis; Mastergradsoppgave, 2021-06-24)
      Sammendrag I forbindelse med Lurøy kommunes sterke fokus på enøk ønsker de å se hvilken nytte ulike tiltak kan ha på eksisterende bygg. Størsteparten av bygningsmassen til Lurøy kommune er fra 1960- til 1980-tallet. Flere av FNs bærekraftsmål er aktuell for oppgaven. Strøm, fremtidig utsikt for energipris, miljø, resirkulering, gjenbruk og oppgradering av eksisterende boliger og begrense sløsing ...
    • Study & Analysis of Power Switches with reverse voltage blocking capability 

      Mughal, Babur Zaman Khan (Master thesis; Mastergradsoppgave, 2021-05-25)
      This thesis hovers over the basic introduction to Silicon Carbide (Metal Oxide Semiconductors Field-effect Transistor) MOSFET switches and the circuit designing of Current Source Invertors using SiC MOSFET switches. The thesis covers the basic grounds for all the steps needed in the implementation of hardware design for half bridge, full bridge and three phase CSIs in the future. Firstly, a ...
    • Developing a Vans-and-Drones System for Last-Mile Delivery 

      Aasen, Kristina Charlotte Pedersen (Master thesis; Mastergradsoppgave, 2021-05-18)
      The e-commerce industry is experiencing rapid growth, and growing customer expectations and demand challenges the industry to find more cost-efficient ways of performing the last-mile deliveries. Drones have in recent years been a hot topic, and with high versatility and several application areas it may be the answer to the challenge. In this project a Vans-and-Drones System for Last-Mile Delivery ...
    • Drone Swarm Simulator 

      Jeroncic, Luka (Master thesis; Mastergradsoppgave, 2021-05-18)
      This thesis is about the research of available and development of drone swarm simulators. The simulator in this work, developed with the AirSim plugin for Unreal Engine 4, shows that there is a possibility of a real-time, accurate simulator with high graphical quality.
    • Wireless charging of offshore wind service vessels 

      Nilsen, Henrik Fjeld (Master thesis; Mastergradsoppgave, 2021-05-18)
      This report discusses the possibility for wireless charging solutions for electric vessels, with a focus on offshore wind turbine service. Where the charging time is minimal and safety for crew is important. Different types of wireless technologies have been studied, where the Inductive power transfer (IPT) is shown to be the preferred technology. Inductive power transfer (IPT) grants a safe ...
    • Investigating representation of tablature data for NLP music prediction 

      Eldby, Tor (Master thesis; Mastergradsoppgave, 2021-05-18)
      In this thesis, the ability of CharRNN models learning to compose guitar music using varying representations of guitar tablature is explored. I utilize a well-versed sequential model of LSTM cells, and investigate the ability of said model to input, and predict both character to character, and sequence to sequence, following the principles of natural language processing and music information ...
    • 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 ...
    • Modeling and Analyzing of Inverters for Controlling Voltage and Frequency in an Islanded Microgrid 

      Khan, Mazhar Ali (Master thesis; Mastergradsoppgave, 2021-05-18)
      Recently, the growth of inverter-based generations (IBGs) like solar photovoltaic (PV) and wind turbine generators in the form of microgrids (MGs) has been increasing. However, control of voltage and frequency becomes a challenging task for MGs especially when they operate in an islanded mode, due to the inherent low-inertia feature of IBGs compared to a grid-tied mode where there is a grid support. ...
    • Tethered Quadcopter Control, Simulation and Modeling platform for a small USV 

      Wæringsaasen, Sindre (Master thesis; Mastergradsoppgave, 2021-05-18)
      Maritime Robotics main intent of the thesis is to develop understanding of a small deployable camera platform capable of providing elevated situational awareness for a small USV using a tether. The thesis goes into the state-ofthe-art methods of usage and control of a tethered drone. The thesis goes into the building and operating of the QAV250 Pixhawk 4 mini drone and making a drone simulation ...
    • Study of Inter Area Oscillations Using Phasor Measurement Units 

      Olsen, Henrik (Master thesis; Mastergradsoppgave, 2021-05-18)
      Low-frequency oscillations in the power system have major repercussions on power system stability and the objective of maximum power transfer. Local and global control strategies have been developed to dampen and impede these oscillations. A modern local control strategy is supplying the automatic voltage regulation (AVR) of the generator with a power system stabilizer (PSS). Modern global control ...
    • Brannprosjektering av automatiske parkeringsanlegg (Fire design of automatic parking systems) 

      Powar, Ajaypal; Omtveit, Talleiv (Master thesis; Mastergradsoppgave, 2021-05-18)
      Automatiske parkeringsanlegg er en innovativ parkeringsløsning som løser plassutfordringene som følge av befolkningsvekst, sentralisering og fortetning, men medfører samtidig nye utfordringer med hensyn til brannsikkerheten. Der en parkeringsplass tidligere var forbeholdt én bil, kan det i denne typen parkeringsanlegg være stablet flere biler i høyden. For rednings- og slokkemannskaper medfører disse ...
    • A Class-E-Based AC-DC converter for PFC applications 

      Stausland, Kristian (Master thesis; Mastergradsoppgave, 2021-06-22)
      Connection of nonlinear utility load har increased through resent years and is expected to continue increasing. Nonlinear utility load injects harmonic content into the grid and reduces voltage quality for nearby consumers. To limit harmonic content from nonlinear load, the International Electrotechnical Commission requires power supplies to be designed according to IEC 61000-3-2. Fulfilling this ...
    • Bruk av prefabrikkerte ytterveggselementer 

      Vollstad, Håkon (Master thesis; Mastergradsoppgave, 2021-05-15)
      Arbeidsproduktiviteten i bygg- og anleggsnæringen i Norge fortsetter med en negativ trend, samtidig som byggekostnadsindeksen for nybygg stiger. Næringsaktører identifiserer et betydelig forbedringspotensial i bransjen. Flere peker på standardisering og prefabrikasjon som en del av løsningen. Consto Nord har bred erfaring med bruk av prefabrikkerte ytterveggselementer, både ved innkjøp og egen ...
    • Solvinkel optimaliserer 

      Nilsen, Bjarne (Master thesis; Mastergradsoppgave, 2021-05-18)
      Snø og andre ting kan reflektere lys på solcellepanelene slik at de produsere mer energi. Refleksjonene kan gjøre slik at den optimale vinkelen til panelene ikke er rett mot solen. Denne rapporten går fort igjennom noen forslag til optimaliseringsalgoritmer for vinklene til solcellepanelene. Videre går den dypere inn på en algoritme som heter «test og sjekk». Kort fortalt går denne algoritmen ...
    • Meshless Animation Framework 

      Johansen, Gustav Adolf (Master thesis; Mastergradsoppgave, 2020-06-07)
      This report details the implementation of a meshless animation framework for blending surfaces. The framework is meshless in the sense that only the control points are handled on the CPU, and the surface evaluation is delegated to the GPU using the tessellation shader steps. The framework handles regular grids and some forms of irregular grids. Different ways of handling the evaluation of ...
    • Ny teknologi gjør frossenfisken fersk 

      Trondsen, Torbjørn (Chronicle; Kronikk, 2016-01-14)
      En ny teknologi for opptining av fisk gjør det mulig å gjenvinne fersk kvalitet dersom fisken er frosset helt fersk. Det muliggjør overføring av oversjøisk transport av laks og ørret fra fly til skip, noe som kan redusere de norske klimagassutslippene med anslagsvis 800.000 tonn.<p> <p>Tineteknologien er EU­patentert av det norskeide tyske selskapet Coolnova UG. Blodferske fiskeprodukter kan ...