Now showing items 894-913 of 1017

    • Tailored Porosities of the Cathode Layer for Improved Polymer Electrolyte Fuel Cell Performance 

      Zlotorowicz, Agnieszka; Jayasayee, Kaushik; Dahl, Paul Inge; Thomassen, Magnus Skinlo; Kjelstrup, Signe (Journal article; Peer reviewed, 2015)
      We show experimentally for the fi rst time that the introduction of macro-pores in the nanoporous catalyst layer of a polymer electrolyte membrane fuel cell can improve its performance. We have ach- ieved a Pt utilization ...
    • TD-DFT based fine-tuning of molecular excitation energies using evolutionary algorithms 

      Abburu, Sailesh; Venkatraman, Vishwesh; Alsberg, Bjørn Kåre (Journal article; Peer reviewed, 2016)
      An evolutionary de novo design method is presented to fine-tune the excitation energies of molecules calculated using time-dependent density functional theory (TD-DFT). The approach is applied to a π-conjugated molecular ...
    • Teaching complex molecular simulation algorithms: Using self‐evaluation to tailor web‐based exercises at an individual level 

      Dahlen, Oda; Lervik, Anders; Aarøen, Ola; Cabriolu, Raffaela; Lyng, Reidar; van Erp, Titus Sebastiaan (Peer reviewed; Journal article, 2020)
      It is quite challenging to learn complex mathematical algorithms used in molecular simulations, stressing the importance of using the most advantageous teaching methods. Ideally, individuals should learn at their pace and ...
    • Temperature anisotropy at equilibrium reveals nonlocal entropic contributions to interfacial properties 

      Wilhelmsen, Øivind; Trinh, Thuat; Lervik, Anders (Journal article, 2018)
      Density gradient theory for fluids has played a key role in the study of interfacial phenomena for a century. In this work, we revisit its fundamentals by examining the vapor-liquid interface of argon, represented by the ...
    • Temporal dynamics of carbon sequestration in coastal North Atlantic fjord system as seen through dissolved organic matter characterisation 

      Mathew, K Avarachen; Ardelan, Murat Van; Villa Gonzalez, Susana; Vadstein, Olav; Sajith Vezhapparambu, Veena; Leiknes, Øystein; Mankettikkara, Rahman; Olsen, Yngvar (Peer reviewed; Journal article, 2021)
      Fjord systems in higher latitudes are unique coastal water ecosystems that facilitate the study of dissolved organic matter (DOM) dynamics from surface to deeper waters. The current work was undertaken in the Trondheim ...
    • Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund 

      Berg, Torunn; Cole, AS; Engelsen, Ola; Steffen, A; Pfaffhuber, Katrine Aspmo (Journal article; Peer reviewed, 2013)
      Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-A° lesund, Svalbard, show no overall annual trend between 2000 and 2009. Seasonal trend analysis showed significantly ...
    • Ten-year trends of atmospheric mercury in the high Arctic compared to Canadian sub-Arctic and mid-latitude sites 

      Cole, AS; Steffen, A; Aspmo, Katrine; Berg, Torunn; Pilote, Martin; Poissant, Laurelier; Tordon, R; Hung, Hayley (Journal article; Peer reviewed, 2013)
      Global emissions of mercury continue to change at the same time as the Arctic is experiencing ongoing climatic changes. Continuous monitoring of atmospheric mercury provides important information about long-term trends in ...
    • The anti-cancer potential of sulfoquinovosyl-derivatives from marine sources 

      Verkerk, Robin (Bachelor thesis, 2020)
      Cancer is among the deadliest diseases known to man. What makes cancer more challenging to treat than other diseases is the fact that it, by its very nature, undergoes rapid and frequent mutations, making every case – to ...
    • The antihypertensive activity of benzimidazoles and the binding of its derivatives to the AT1 receptor 

      Aracena-Solem, Matias (Bachelor thesis, 2021)
      For å undersøke den antihypertensive effekten til benzimidazol derivater og effekten av ulike substituenter, på benzimidazol kjernemolekylet, på den antihypertensive effekten vil denne oppgaven se på bindingen av inverse ...
    • The appliance and synthesis of natural antibiotic (+)-negamycin 

      Janjua, Nicholas Alexander (Bachelor thesis, 2020)
      I denne oppgaven fremheves og diskuteres fordeler og ulemper ved det naturlige antiobiotikumet (+)-negamycin. Disse består blant annet av dens ytelse innenfor medisin samt toksisitet for potensielle pasienter. En sammenligning ...
    • The catalytic direct conversion of methane to methanol with metal-exchanged ZSM-5 

      Myhrvold, Fride (Bachelor thesis, 2021)
      Metangass er en av klimagassene som bidrar mest til global oppvarming, og er en rik ressurs som kan brukes i den petrokjemiske industrien ved å omdanne den til metanol. En mer bærekraftig mekanisme for konvertering gjøres ...
    • 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 ...
    • The dye-sensitized solar cell database 

      Venkatraman, Vishwesh; Raju, Rajesh; Economopoulos, Solon; Alsberg, Bjørn Kåre (Journal article; Peer reviewed, 2018)
      Dye-sensitized solar cells (DSSCs) have garnered a lot of attention in recent years. The solar energy to power conversion efficiency of a DSSC is influenced by various components of the cell such as the dye, electrolyte, ...
    • The Effects of Macronutrient Enrichments (ammonium) on the Distribution of Four Bioactive Trace Metals (Cd, Mo, Ni, Cu) in Seawater and Planktonic Biomass. 

      Hunnestad, Annie Vera (Master thesis, 2012)
      Environmental impacts of aquaculture can be widespread and serious, and one of the problems connected to this activity is the release of waste in the form of macronutrients. One important aspect is the potential of a shift ...
    • The Function of the N-Methyl-D-Aspartate Receptor in Neurodegenerative Diseases 

      Torkildsen Johansen, Emilie (Bachelor thesis, 2020)
    • The impact of redox reactions on the N- and P-cycle in recirculating aquaculture system 

      Estensen, Bjørn Anda (Master thesis, 2021)
      Redox reaksjoner er viktige for de kjemiske egenskapene til vann. Det er blitt økt interesse for den økende delen av havet med lave konsentrasjoner av oppløst oksygen og hvordan redox reaksjonene kan påvirke, eller bli ...
    • The Influence of Alternating Current on the Polarization Behavior of Stainless Steels 

      Hagen, Catalina H. Musinoi (Master thesis, 2013)
      In later years direct electrical heating (DEH) based on the use of alternating current (AC) has replaced traditional chemical based methods for hydrate formation control in subsea flow lines. The problem with the AC-method ...
    • The Influence of Chemical Composition on Streamer Initiation and Propagation in Dielectric Liquids 

      Ingebrigtsen, Stian (Doktoravhandlinger ved NTNU, 1503-8181; 2008:264, Doctoral thesis, 2008)
      Effects of electron-attaching and electron-releasing additives in cyclohexane on the initiation and propagation of positive and negative non-breakdown streamers have been studied qualitatively and quantitatively. Fast ...
    • The Ionic Liquid Property Explorer: An Extensive Library of Task-Specific Solvents 

      Venkatraman, Vishwesh; Evjen, Sigvart; Lethesh, Kallidanthiyil Chellappan (Journal article; Peer reviewed, 2019)
      Ionic liquids have a broad spectrum of applications ranging from gas separation to sensors and pharmaceuticals. Rational selection of the constituent ions is key to achieving tailor-made materials with functional properties. ...