Browsing Fakultet for ingeniørvitenskap (IV) by Title

Now showing items 11873-11892 of 22885

    • Ionic Liquids as Additives in Low Viscosity Lubricants – A Surface Adsorption and Tribofilm Study 

      Wijanarko, Wahyu (Doctoral theses at NTNU;2022:130, Doctoral thesis, 2022)
      The trend in lubrication nowadays is towards low viscosity lubricants. Low viscosity lubricants flow more easily, increasing the lubricant volume circulation thus improving the cooling performance and cleaning ability of ...

    • Ionic Liquids as Additives in Water‑Based Lubricants: From Surface Adsorption to Tribofilm Formation 

      Khanmohammadi, Hamid; Wijanarko, Wahyu; Espallargas, Nuria (Peer reviewed; Journal article, 2020)
      Ionic liquids (ILs) are potential lubricant additives that can potentially perform simultaneously as friction modifiers and anti-wear agents. In addition, they possess good thermal stability, they are non-flammable, they ...

    • Ionic liquids as boundary additives in water-based and PAO lubricants 

      Wijanarko, Wahyu; Khanmohammadi, Hamid; Espallargas, Nuria (Peer reviewed; Journal article, 2021)
      Ionic liquids have been widely discussed as potential lubricants, however, their properties make them also very good potential candidates as lubricant additives (e.g., friction modifiers and anti-wear). In this work, the ...

    • Ionomer content optimization in nickel-iron-based anodes with and without ceria for anion exchange membrane water electrolysis 

      Cossar, Emily; Barnett, Alejandro Oyarce; Seland, Frode; Safari, Reza; Botton, Gianluigi A.; Baranova, Elena A. (Journal article; Peer reviewed, 2021)
      Hydrogen production from anion exchange membrane water electrolysis (AEMWE) is an efficient cost-effective solution to renewable energy storage. Contrary to proton exchange membrane (PEM) electrolysis, AEMWE requires further ...

    • IoT‑based hydrological monitoring of water‑induced landslides: a case study in central Norway 

      Oguz, Emir Ahmet; Depina, Ivan; Myhre, Bård; Devoli, Graziella; Rustad, Helge; Thakur, Vikas Kumar Singh (Peer reviewed; Journal article, 2022)
      Water-induced landslides pose a great risk to the society in Norway due to their high frequency and capacity to evolve in destructive debris flows. Hydrological monitoring is a widely employed method to understand the ...

    • IPD governance implications 

      Andersen, Bjørn Sørskot; Klakegg, Ole Jonny; Walker, Derek H.T. (Chapter, 2019)
      Interest in project-management (PM) governance has grown steadily over the past decade. Turner (2006) introduced, over a decade ago, the role of governance (based on a definition of corporate governance) in the development ...

    • IPD i Norge 

      Nordheim, Runar; Aslesen, Andreas Rivø (Master thesis, 2018)
      Bygge- og anleggsbransjen opplever utfordringer knyttet til å øke produktiviteten i prosjekter. Dette anses som en utfordring som bare blir større med prosjekter som stadig blir mer usikre og komplekse. IPD er en ...

    • IPL i byggebransjen - En empirisk studie med fokus på prosjekteringsfasen og effekten av BIM. 

      Laugen, Ida Marie; Sesseng, Eirik; Gravem, Synne (Bachelor thesis, 2022)
      SAMMENDRAG IPL er en samhandlingsmodell som er relativ fersk i byggebransjen i Norge. Det finnes ikke et fast rammeverk for gjennomføringsmodellen IPL. Det kan gjøre overgangen fra tradisjonell prosjektmetode til en mer ...

    • IPR Modeling for Coning Wells 

      Astutik, Wynda (Master thesis, 2012)
      In this study, based on the work of Vogel, we generated the Inflow Performance Relationship (IPR) curves and its dimensionless form at any stage of depletion using black-oil simulator results. The IPR was generated for ...

    • iPROCESS innovation - Innovative and Flexible Food Processing Technology in Norway - 2020:00981 A 

      Krupa, Alexandre; Andersen, Petter Vejle; Wold, Jens Petter; Thakur, Maitri; Verboven, Pieter; Lind, Morten; Dreyer, Heidi Carin; Vatn, Jørn; Tveterås, Ragnar; Sandvold, Hilde Ness (Research report, 2020)
      To develop novel concepts and methods for flexible and sustainable food processing in Norway with the aim of coping with small volume series and high biological variation in existing raw materials, to enable increased raw ...

    • Iron Ore Price Prediction Based on Multiple Linear Regression Model 

      Wang, Yanyi; Guo, Zhenwei; Zhang, Yunrui; Hu, Xiangping; Xiao, Jianping (Journal article, 2023)
      The fluctuation of iron ore prices is one of the most important factors affecting policy. Therefore, the accurate prediction of iron ore prices has significant value in analysis and judgment regarding future changes in ...

    • Iron speciation in blast furnace slag cements 

      Mancini, A.; Lothenbach, Barbara; Geng, G.; Grolimund, D.; Sanchez, D.F.; Fakra, Sirine C.; Dähn, R.; Wehrli, B.; Wieland, E. (Peer reviewed; Journal article, 2021)
      Slag-containing pastes and concretes were analysed by element-specific synchrotron-based techniques to determine the speciation of iron on crushed materials through spatially resolved micro-spectroscopic studies. The ...

    • Irreversibility of combustion, heat and mass transfer 

      Nadim, Pedram (Master thesis, 2011)
      Combustion is by far the most commonly used technology for energy conversion. The analysis of entropy generation and exergy loss is normally used to optimize thermal energy technologies such as gas turbines. The loss of ...

    • Is a net life cycle balance for energy and materials achievable for a zero emission single-family building in Norway? 

      Kristjansdottir, Torhildur Fjola; Houlihan Wiberg, Aoife Anne Marie; Andresen, Inger; Georges, Laurent; Heeren, Niko; Good, Clara; Brattebø, Helge (Journal article; Peer reviewed, 2018)
      In this study, the objective is to redesign a previous concept for a single-family Zero greenhouse gas Emission Building (ZEB). The concept is redesigned based on comparing greenhouse gas (GHG) emission loads and compensation ...

    • Is ambient light during the high Arctic polar night sufficient to act as a visual cue for zooplankton? 

      Cohen, Jonathan H.; Berge, Jørgen; Moline, Mark A.; Sørensen, Asgeir Johan; Last, Kim; Falk-Petersen, Stig; Renaud, Paul; Leu, Eva; Grenvald, Julie Cornelius; Cottier, Finlo; Cronin, Heather; Menze, Sebastian; Norgren, Petter; Varpe, Øystein; Daase, Malin; Darnis, Gérald; Johnsen, Geir (Journal article, 2015)
      The light regime is an ecologically important factor in pelagic habitats, influencing a range of biological processes. However, the availability and importance of light to these processes in high Arctic zooplankton communities ...

    • Is digital twin technology supporting safety management? A bibliometric and systematic review 

      Agnusdei, Giulio Paolo; Elia, Valerio; Gnoni, Maria Grazia (Peer reviewed; Journal article, 2021)
      In the Industry 4.0 era, digital tools applied to production and manufacturing activities represent a challenge for companies. Digital Twin (DT) technology is based on the integration of different “traditional” tools, such ...

    • Is Full-autonomy the Way to Go Towards Maximizing the Ocean Potentials? 

      Zghyer, Rami; Ostnes, Runar; Halse, Karl Henning (Journal article; Peer reviewed, 2019)
      Growth prospects for ocean economy are promising because ocean industries are addressing challenges such as food security, energy security and climate change. However, safety and efficiency are the general challenges of ...

    • Is Hygrothermal Aging of Construction Polymer Composites a Reversible Process? 

      Grammatikos, Sotirios; Papatzani, Styliani; Evernden, Mark (Peer reviewed; Journal article, 2020)
      This paper presents the effects of wet/dry cycling loading on the moisture uptake behavior of a Fibre Reinforced Polymer (FRP) composite used in the civil engineering sector. FRP samples of various dimensions were cut from ...

    • Is integration of Uncertainty Management and The Last Planner System a good idea? 

      Torp, Olav; Bølviken, Trond; Aslesen, Sigmund; Lombardo, Sebastiano (Chapter, 2018)
      The Last Planner System (LPS) is a tool for project planning and control, and is an important contribution from Lean Construction. LPS focuses on scheduling, task coordination and time management. Uncertainty Management ...

    • Is it possible to estimate the magnitude of uplift and erosion by the use of check-shot data and average velocity? 

      Aven, Eirik (Master thesis, 2017)
      This work investigates a new method in quantifying the magnitude of net erosion or net exhumation by using average velocity profiles derived from check-shot data. The fundamental principle is based on finding the same ...