Blar i Faculty of Science and Technology på tittel

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    • An Experimental Study of Tertiary CO2 Injection Strategies in Fractured Limestone Rocks 

      Hjartnes, Tomas Nordeide (Master thesis, 2015-06-01)
      The experimental work within this thesis is a continued investigation of tertiary recovery by injection of supercritical CO2 and CO2-foam under miscible conditions for enhanced oil recovery in fractured limestone. Secondary ...

    • An experimental study of the effect of water and chlorine on plagioclase nucleation and growth in mafic magmas: application to mafic pegmatites 

      Heckmann, Paul; Iacono Marziano, Giada; Strmic Palinkas, Sabina (Journal article; Peer reviewed, 2023)
      In this study, the effects of H2O and Cl on the grain size and nucleation delay of plagioclase in basaltic magma were investigated using dynamic and equilibrium experiments at 1150 ∘C, 300 MPa, and oxygen fugacity between ...

    • An Experimental Study of the Influence of Major Damage of Flame Gap Surfaces in Flameproof Apparatus on the Ability of the Gaps to Prevent Gas Explosion Transmission 

      Grov, Arild (Master thesis, 2010-06-10)
      Electrical apparatuses for use in the presence of explosive gas atmospheres have to be specially designed to prevent them from igniting the explosive gas. Flameproof design implies that electrical components producing ...

    • Experimental Study of the Wake Flow and Thrust Coefficient of Porous Actuator Discs 

      Øye, Sindre (Master thesis, 2022-06-01)

    • Experimental Study on Flow Interruption by Cyclopentane Hydrates-in-Water 

      Jordskar, Robin (Master thesis, 2024-06-03)
      This work investigates the flow behaviour and plugging potential of cyclopentane hydrates within a dynamic flow loop system, focusing on the effects of different hydrate volume fractions. The primary objective was to ...

    • Experimental Study on One-Time Password used in Authentication within Norwegian Banking 

      Naguleswaran, Sivanja (Master thesis, 2020-06-26)
      Authentication is a vital part of this fast-growing, digitalized world. Fundamentally, today’s society is more reliant on computer technology and digitalization than ever before. Therefore, the use of dynamic one-time ...

    • An experimental study on the effects of winglets on the tip vortex interaction in the near wake of a model wind turbine 

      Bartl, Jan; Mühle, Franz Volker; Hansen, Thomas; Adaramola, Muyiwa S.; Sætran, Lars Roar (Journal article; Peer reviewed, 2020)
      An experimental study of the near wake up to four rotor diameters behind a model wind turbine rotor with two different wing tip configurations is performed. A straight-cut wing tip and a downstream-facing winglet shape are ...

    • An Experimental Study on the Influence of the Particle Size of Chemically Active Inhibitors in Turbulent Combustion 

      Wangsholm, Erlend (Master thesis, 2012-06-01)
      Accidental gas leaks pose a great danger in the process industries. To reduce the consequences, should such a gas leak ignite, mitigating measures are needed. One such measure, involving the introduction of water deluge ...

    • Experimental warming differentially affects vegetative and reproductive phenology of tundra plants 

      Collins, Courtney G.; Elmendorf, Sarah C.; Hollister, Robert D.; Henry, Greg H. R.; Clark, Karin; Bjorkman, Anne D.; Myers-Smith, Isla H.; Prevéy, Janet S.; Ashton, Isabel W.; Assmann, Jakob J.; Alatalo, Juha M.; Carbognani, Michele; Chisholm, Chelsea L.; Cooper, Elisabeth J.; Forrester, Chiara; Jónsdóttir, Ingibjörg Svala; Klanderud, Kari; Kopp, Christopher W.; Livensperger, Carolyn; Mauritz, Marguerite; May, Jeremy L.; Molau, Ulf; Oberbauer, Steven F.; Ogburn, Emily; Panchen, Zoe A.; Petraglia, Alessandro; Post, Eric; Rixen, Christian; Rodenhizer, Heidi; Schuur, Edward A.G.; Semenchuk, Philipp; Smith, Jane G.; Steltzer, Heidi; Totland, Ørjan; Walker, Marilyn D.; Welker, Jeffrey M.; Suding, Katharine N. (Journal article; Peer reviewed, 2021)
      Rapid climate warming is altering Arctic and alpine tundra ecosystem structure and function, including shifts in plant phenology. While the advancement of green up and flowering are well-documented, it remains unclear ...

    • Experimentally assessing the uncertainty of forecasts of geological carbon storage 

      Nordbotten, Jan Martin; Fernø, Martin; Flemisch, Bernd; Juanes, Ruben; Jørgensen, Magne (Journal article; Peer reviewed, 2024)
      Geological storage of carbon dioxide is a cornerstone in almost every realistic emissions reduction scenario outlined by the Intergovernmental Panel on Climate Change. Our ability to accurately forecast storage efficacy ...

    • Experiments and Models of Carbon Black-based Nanofluids for Photothermal and Electrical Applications 

      Wei, Shihao (Doctoral thesis, 2023-06-26)
      Nanofluid er en type væske som inneholder spredte nanopartikler, som kan forbedre deres termiske og elektriske egenskaper sammenlignet med basevæsker. Dette har ført til omfattende bruksområder, som for eksempel solenergilagring. ...

    • An explicit IMF By dependence on solar wind ‐ magnetosphere coupling 

      Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders; Moretto, Therese; Milan, Steve (Peer reviewed; Journal article, 2019)
      Presently, all empirical coupling functions quantifying the solar wind—magnetosphere energy—or magnetic flux conversion assume that the coupling is independent of the sign of the dawn-dusk component (B𝑦) of the Interplanetary ...

    • Explicit tracking of CO2-flow at the core scale using micro-Positron Emission Tomography (μPET) 

      Brattekås, Bergit; Haugen, Malin (Journal article; Peer reviewed, 2020)
      Safe subsurface sequestration of carbon dioxide (CO2) is becoming increasingly important to meet climate goals and curb atmospheric CO2 concentrations. The world-wide CO2 storage capacity in carbonate formations is ...

    • Explicit volume-preserving splitting methods for divergence-free ODEs by tensor-product basis decompositions 

      Munthe-Kaas, Antonella Zanna (Peer reviewed; Journal article, 2014-02-23)
      We discuss the construction of volume-preserving splitting methods based on a tensor product of single-variable basis functions. The vector field is decomposed as the sum of elementary divergence-free vector fields (EDFVFs), ...

    • Exploiting graph structures for computational efficiency 

      Strømme, Torstein Jarl Fagerbakke (Doctoral thesis, 2020-05-07)
      Coping with NP-hard graph problems by doing better than simply brute force is a field of significant practical importance, and which have also sparked wide theoretical interest. One route to cope with such hard graph ...

    • Exploiting Redundant Designs with Side-Channel Attacks 

      Costes, Nicolas (Doctoral thesis, 2024-09-09)
      Sidekanalsangrep (SKA) er en bred angrepsklasse der en angriper utnytter en uforventet informasjonslekkasje til å omgå et sikkerhetstiltak. Hvorfor skulle man orke å knekke en kryptert telefonsamtale når man kan stå i ...

    • Exploration of differentiability in a proton computed tomography simulation framework 

      Aehle, Max; Alme, Johan; Gábor Barnaföldi, Gergely; Blühdorn, Johannes; Bodova, Tea; Borshchov, Vyacheslav; van den Brink, Anthony; Eikeland, Viljar Nilsen; Feofilov, Gregory; Garth, Christoph; Gauger, Nicolas R; Grøttvik, Ola Slettevoll; Helstrup, Håvard; Igolkin, Sergey; Keidel, Ralf; Kobdaj, Chinorat; Kortus, Tobias; Kusch, Lisa; Leonhardt, Viktor; Mehendale, Shruti Vineet; Ningappa Mulawade, Raju; Odland, Odd Harald; O'Neill, George; Papp, Gábor; Peitzmann, Thomas; Pettersen, Helge Egil Seime; Piersimoni, Pierluigi; Pochampalli, Rohit; Protsenko, Maksym; Rauch, Max Philip; Rehman, Attiq Ur; Richter, Matthias; Röhrich, Dieter Rudolf Christian; Sagebaum, Max; Santana, Joshua; Schilling, Alexander; Seco, Joao; Songmoolnak, Arnon; Sudár, Ákos; Tambave, Ganesh Jagannath; Tymchuk, Ihor; Ullaland, Kjetil; Varga-Kofarago, Monika; Volz, Lennart; Wagner, Boris; Wendzel, Steffen; Wiebel, Alexander; Xiao, Renzheng; Yang, Shiming; Zillien, Sebastian (Journal article; Peer reviewed, 2023)
      Objective. Gradient-based optimization using algorithmic derivatives can be a useful technique to improve engineering designs with respect to a computer-implemented objective function. Likewise, uncertainty quantification ...

    • Exploration of jet substructure using iterative declustering in pp and Pb–Pb collisions at LHC energies 

      Acharya, Shreyasi; Adamová, Dagmar; Adhya, Souvik Priyam; Adler, Alexander; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Grøttvik, Ola Slettevoll; Lofnes, Ingrid Mckibben; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Yuan, Shiming; Zhou, Zhuo; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Malik, Qasim Waheed; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen André; Ahmad, Shafiq F.; Ahn, Sang Un; Akindinov, Alexander; Al-Turany, Mohammed; ALICE, Collaboration (Journal article; Peer reviewed, 2020)
      The ALICE collaboration at the CERN LHC reports novel measurements of jet substructure in pp collisions at √s = 7 TeV and central Pb–Pb collisions at √sNN = 2.76 TeV. Jet substructure of track-based jets is explored via ...

    • Exploration of Linear-Algebra Graph Algorithms on the Graphcore IPU 

      Otten, Yoeri Daniel (Master thesis, 2023-11-20)
      More specialized hardware is being created to improve the efficiency of demanding algorithms. Graphcore introduced their Intelligence processors: a specialized true MIMD architecture which specializes in machine learning ...

    • Exploration of non-spinning ^1H NMR Spectroscopy as a Tool for Determination and Monitoring of Gas Hydrate Formation and Dissociation Processes 

      Henrichsen, Magnus Rossmann (Master thesis, 2015-11-02)
      Natural gas hydrates provide both a flow- assurance hazard and a potential fossil fuel source. In order to face the challenges presented by these scenarios, a greater understanding of the properties of hydrates in a range ...