Now showing items 1-20 of 3482

    • Cyclodextrin triggered dimensional changes of polysaccharide nanogel integrated hydrogels at nanometer resolution 

      Gao, Ming; Toita, Sayaka; Sawada, Shin-ichi; Akiyoshi, Kazunara; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2013)
      High resolution monitoring of dimensional changes of cholesterol bearing pullulan (CHP) hydrogel was performed as a model for materials dimensional changes associated with drug delivery. Hydrogels consisting of methacryloyl ...
    • Electroplating of Stainless Steel in Aqueous Alkaline Solution 

      Thu, Ida Soland (Master thesis, 2017)
      Electroplated stainless steel alloys containing elements such as iron, chromium and nickel, are of great interest in production of electronics and nanotechnology devices. Previous methods for electroplating of these alloys ...
    • Head-On Beam-Beam Interactions in High-Energy Hadron Colliders - GPU-Powered Modelling of Nonlinear Effects 

      Furuseth, Sondre Vik (Master thesis, 2017)
      The performance of high-energy circular hadron colliders, as the Large Hadron Collider, is limited by beam-beam interactions. The strength of the beam-beam interactions will be higher after the upgrade to the High-Luminosity ...
    • The mechanism (Phe362Tyr mutation) behind resistance in Lepeophtheirus salmonis pre-dates organophosphate use in salmon farming 

      Kaur, Kiranpreet; Besnier, Francois; Glover, Kevin; Nilsen, Frank; Aspehaug, Vidar Teis; Fjørtoft, Helene Børretzen; Horsberg, Tor Einar (Journal article; Peer reviewed, 2017)
      The salmon louse is an ectoparasitic copepod of salmonids in the marine environment, and represents a global challenge to salmon aquaculture. A major issue is the reliance of the industry on a limited number of chemicals ...
    • Effect of nanoparticle (Pd, Pd/Pt, Ni) deposition on high temperature hydrogenation of Ti-V alloys in gaseous flow containing CO 

      Suwarno, Suwarno; Williams, M; Solberg, Jørgen Kleivan; Yartys, Volodymyr (Journal article; Peer reviewed, 2017)
      The hydrogenation properties of Ti-V hydrides coated with nanoparticles have been studied in gaseous mixtures of argon and hydrogen with and without additions of 1% CO. Nanoparticles of Pd, Ni, and co-deposited Pd/Pt with ...
    • Impurity segregation at defects in Al and Si -A theoretical DFT based study 

      Zhao, Dongdong (Doctoral theses at NTNU;2017:273, Doctoral thesis, 2017)
      Alien impurity elements favor to stay at the defects, e.g. stacking fault, grain boundary (GB) in host materials and thus influence many material properties. On basis of atomistic simulations, the present thesis puts a ...
    • To Adapt or Not Adapt: Assessing the Adaptive Capacity of Artisanal Fishers in the Trondheimsfjord (Norway) to Jellyfish (Periphylla periphylla) Bloom and Purse Seiners 

      Tiller, Rachel Gjelsvik; Mork, Jarle; Liu, Yajie; Borgersen, Åshild Løvås; Richards, Russell (Journal article; Peer reviewed, 2015)
      Worldwide increases of jellyfish has occurred during the last several decades. A dense population of a large scyphozoan jellyfish, Periphylla periphylla, has established itself as top predator in the Trondheimsfjord in ...
    • Comparison of C14- and C15-Predomiated AB2 Metal Hydride Alloys for Electrochemical Applications 

      Young, Kwo-Hsiung; Nei, Jean; Wan, Chubin; Denys, Roman Volodymyrovich; Yartys, Volodymyr (Journal article, 2017)
      Herein, we present a comparison of the electrochemical hydrogen-storage characteristics of two state-of-art Laves phase-based metal hydride alloys (Zr21.5Ti12.0V10.0Cr7.5Mn8.1Co8.0Ni32.2Sn0.3Al0.4 vs. Zr25.0Ti6.5V3.9Mn22 ...
    • Exposure of juvenile turbot (Scophthalmus maximus) to AgNP-EE2 mixtures: Implications on contaminant bioavailability and plasma steroid hormone levels 

      Farkas, Julia; Salaberria, Iurgi; Styrishave, Bjarne; Stanková, Radka; Ciesielski, Tomasz Maciej; Olsen, Anders Johny; Posch, Wilfried; Flaten, Trond Peder; Krøkje, Åse; Salvenmoser, Willi; Jenssen, Bjørn Munro (Journal article; Peer reviewed, 2017)
      Combined exposure to engineered nanoparticles (ENPs) and anthropogenic contaminants can lead to changes in bioavailability, uptake and thus effects of both groups of contaminants. In this study we investigated effects of ...
    • Cell Performance Comparison between C14- and C15-Predomiated AB2 Metal Hydride Alloys 

      Young, Kwo-Hsiung; Koch, John M.; Wan, Chubin; Denys, Roman Volodymyrovich; Yartys, Volodymyr (Journal article, 2017)
      The performance of cylindrical cells made from negative electrode active materials of two selected AB2 metal hydride chemistries with different dominating Laves phases (C14 vs. C15) were compared. Cells made from Alloy C15 ...
    • The Dalton quantum chemistry program system 

      Aidas, Kestutis; Angeli, Celestino; Bak, Keld L.; Bakken, Vebjørn; Bast, Radovan; Boman, Linus; Christiansen, Ove; Cimiraglia, Renzo; Coriani, Sonja; Dahle, Pål; Dalskov, Erik K.; Ekström, Ulf Egil; Enevoldsen, Thomas; Eriksen, Janus J.; Ettenhuber, Patrick; Fernández, Berta; Ferrighi, Lara; Fliegl, Heike; Frediani, Luca; Hald, Kasper; Halkier, Asger; Hattig, Christof; Heiberg, Hanne; Helgaker, Trygve; Hennum, Alf Christian; Hettema, Hinne; Hjertenæs, Eirik; Høst, Stine; Høyvik, Ida Marie; Iozzi, Maria Francesca; Jansik, Brannislav; Jensen, Hans-Jørgen Aa.; Jonsson, Dan Johan; Jørgensen, Poul; Kauczor, Johanna; Kirpekar, Sheela; Kjærgaard, Thomas; Klopper, Wim; Knecht, Stefan; Kobayashi, Rika; Koch, Henrik; Kongsted, Jacob; Krapp, Andreas; Kristensen, Kasper; Ligabue, Andrea; Lutnæs, Ola B.; Melo, Juan I.; Mikkelsen, Kurt V.; Myhre, Rolf Heilemann; Neiss, Christian; Nielsen, Christian B.; Norman, Patrick; Olsen, Jeppe; Olsen, Jogvan Magnus H.; Osted, Anders; Packer, Martin J.; Pawlowski, Filip; Pedersen, Thomas Bondo; Provasi, Patricio F.; Reine, Simen Sommerfelt; Rinkevicius, Zilvinas; Ruden, Torgeir A.; Ruud, Kenneth; Rybkin, Vladimir V.; Salek, Pawel; Samson, Claire C. M.; Sanchez de Meras, Alfredo; Saue, Trond; Sauer, Stephan P. A.; Schimmelpfennig, Bernd; Sneskov, Kristian; Steindal, Arnfinn Hykkerud; Sylvester-Hvid, Kristian O.; Taylor, Peter R.; Teale, Andrew M.; Tellgren, Erik; Tew, David P.; Thorvaldsen, Andreas J.; Thøgersen, Lea; Vahtras, Olav; Watson, Mark A.; Wilson, David J. D.; Ziolkowski, Marcin; Ågren, Hans (Journal article; Peer reviewed, 2014)
      Dalton is a powerful general-purpose program system for the study of molecular electronic structure at the Hartree–Fock, Kohn–Sham, multiconfigurational self-consistent-field, Møller–Plesset, configuration-interaction, and ...
    • Investigation of bubble distribution and evolution in solar cell quartz crucibles 

      Hansen, Sebastian Holand (Master thesis, 2017)
      Quartz crucibles are, among other applications, used to produce monocrystalline silicon ingots for the solar cell industry. The crucibles must be of high purity as any gas bubbles or impurities close to the crucible-melt ...
    • Vapour Pressure of Bi above Bi-Ti Alloys by Transpiration Method 

      Thomassen, Nina Lu (Master thesis, 2017)
      Titanium is an attractive metal with wide-ranging applications due to its properties. Titanium is one of the most corrosion resistant metals with the highest strength-to-weight ratio. The only industrial production route ...
    • Dynamic Simulation of Heat Exchanger with Multicomponent Phase Change 

      Zotica, Cristina Florina (Master thesis, 2017)
      A dynamic model for a heat exchanger with multicomponent phase change, part of reliquefaction cycle of natural gas, is developed. The finite control volume method is used to spatially discretize the heat exchange intro a ...
    • Nitrogen-doped Carbon Nanofibers for the Oxygen Reduction Reaction: Importance of the Iron Growth Catalyst Phase 

      Buan, Marthe Emelie Melandsø; Muthuswamy, Navaneethan; Walmsley, John; Chen, De; Rønning, Magnus (Journal article; Peer reviewed, 2017)
      A systematic evaluation of the oxygen reduction reaction (ORR) on nitrogen-doped carbon nanofibers (N-CNFs) has been performed by tuning the properties of the N-CNFs by using chemical vapor deposition. Analysis of the ...
    • Nonlinear Model Predictive Control of Gravity Separators 

      Dlima, Melissa Florine (Master thesis, 2017)
      For economical reasons, it is necessary to operate separators such that the the purity specification is maximized while having the levels and the system pressure controlled. In this thesis, a nonlinear model predictive ...
    • Evaluation of methods to determine adsorption of polycyclic aromatic hydrocarbons to dispersed carbon nanotubes 

      Glomstad, Berit; Sørensen, Lisbet; Liu, Jingfu; Shen, Mohai; Zindler, Florian; Jenssen, Bjørn Munro; Booth, Andy (Journal article; Peer reviewed, 2017)
      A number of methods have been reported for determining hydrophobic organic compound adsorption to dispersed carbon nanotubes (CNTs), but their accuracy and reliability remain uncertain. We have evaluated three methods to ...
    • Nitrogen-doped carbon nanofibers on expanded graphite as oxygen reduction electrocatalysts 

      Buan, Marthe Emelie Melandsø; Muthuswamy, Navaneethan; Walmsley, John; Chen, De; Rønning, Magnus (Journal article; Peer reviewed, 2016)
      A single-step chemical vapor deposition method using simple gaseous precursors was employed to grow nitrogen-doped carbon nanofibers from Fe and Ni particles on the surface of expanded graphite (N-CNF/EG). Due to the high ...
    • Nitrogen-doped carbon nanofiber catalyst for ORR in PEM fuel cell stack: Performance, durability and market application aspects 

      Bokach, Dmitry; ten Hoopen, Sander; Muthuswamy, Navaneethan; Buan, Marthe Emelie Melandsø; Rønning, Magnus (Journal article; Peer reviewed, 2016)
      A noble metal-free catalyst based on N-doped carbon nanofibers supported on graphite (N-CNF1 ) was employed for the oxygen reduction at the cathode of a Nafion PEMFC with a commercial Pt/C anode. Obtained performance in ...
    • Capturing metal-support interactions in situ during the reduction of a Re promoted Co/γ-Al2O3 catalyst 

      Tsakoumis, Nikolaos; Johnsen, Rune E.; van Beek, Wouter; Rønning, Magnus; Rytter, Erling; Holmen, Anders (Journal article; Peer reviewed, 2016)
      The reduction of a Re promoted Co/γ-Al2O3 catalyst was monitored in situ by synchrotron X-ray powder diffraction (XRPD) under H2 environment. Whole powder pattern analysis revealed a non-linear expansion of the unit cell ...