Blar i NTNU Open på forfatter "Andersson, Stefan"

Viser treff 1-12 av 12

    • Boron Removal from Silicon Melt by gas Blowing Technique 

      Hoseinpur Kermani, Arman; Andersson, Stefan; Müller, Michael; Tang, Kai; Safarian, Jafar (Peer reviewed; Journal article, 2022)
      Due to the detrimental effects of boron (B) on the efficiency of silicon (Si) photovoltaic cells, complete boron removal from Si is necessary to produce solar grade Si (SoG–Si, with a maximum limit of 0.1 ppmw boron). Gas ...

    • Brannsikkerhet i ventilasjonssystemer - En analytisk gjennomgang av røykspredning i ventilasjonsanlegg 

      Gallala, Mikael Rise; Collett, Knut Magnus (Master thesis, 2015)
      Brannsikring av ventilasjonssystemer har fått mer fokus de siste årene. TEK 10 setter kun funksjonskrav for hvordan tekniske installasjoner skal fungere ved brann, og det er dermed opp til de prosjekterende å sette opp ...

    • Evaporation and diffusion of Mn in inert systems 

      Olsen, Håkon Aleksander Hartvedt; Andersson, Stefan; Tranell, Gabriella (Journal article; Peer reviewed, 2018)
      This research is aimed to improve our knowledge on the dust formation and clustering in the ferroalloy industry. Specifically, this paper focuses on the evaporation of manganese metal, and how different parameters influence ...

    • Evolvability and trait function predict phenotypic divergence of plant populations 

      Opedal, Øystein Hjorthol; Armbruster, Scott; Hansen, Thomas Fredrik; Holstad, Agnes; Pelabon, Christophe; Andersson, Stefan; Campbell, Diane R.; Caruso, Christina M.; Delph, Lynda F.; Eckert, Christopher G.; Lankinen, Åsa; Walter, Greg M.; Ågren, Jon; Bolstad, Geir Hysing (Peer reviewed; Journal article, 2023)
      Understanding the causes and limits of population divergence in phenotypic traits is a fundamental aim of evolutionary biology, with the potential to yield predictions of adaptation to environmental change. Reciprocal ...

    • Fume Formation and Measurements in the Metal-Production Industry 

      Myklebust, Håkon (Doctoral theses at NTNU;2022:14, Doctoral thesis, 2021)
      Airborne Particulate Matter (PM) is considered to be a major concern for both occupational health and the environment, and in the metal production industry, the level of such particles in the air can be considerable. This ...

    • Mechanisms and Kinetics of Boron Removal from Silicon by Humidified Hydrogen 

      Safarian, Jafar; Tang, Kai; Olsen, Jan Erik; Andersson, Stefan; Tranell, Gabriella; Hildal, Kjetil (Journal article; Peer reviewed, 2016)
      The removal of boron from silicon by top blowing of humidified hydrogen has been studied in the present work through experimental work, thermodynamic calculations, computational fluid dynamic modeling, and quantum chemistry ...

    • Oxidation of Liquid Silicon in Air Atmospheres Containing Water Vapor 

      Ma, Yan; Jiang, Bo; Moosavi-Khoonsari, Elmira; Andersson, Stefan; Opila, Elizabeth J.; Tranell, Gabriella (Peer reviewed; Journal article, 2019)
      The oxidation of silicon (Si) has been extensively investigated over the past 50 years. Yet, an understanding of the mechanism and rate of liquid Si oxidation in atmospheres containing water vapor, is lacking. The effect ...

    • Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese 

      Myklebust, Håkon A Hartvedt Olsen; Andersson, Stefan; Tranell, Gabriella (Peer reviewed; Journal article, 2021)
      Lifetime and reliability in realistic operating conditions are important parameters for the application of thin-film piezoelectric microelectromechanical systems (piezoMEMS) based on lead zirconate titanate (PZT). Humidity ...

    • Post Processing Approach to Model Microsilica Formation 

      Vachaparambil, Kurian J.; Einarsrud, Kristian Etienne; Dalaker, Halvor; Andersson, Stefan (Peer reviewed; Journal article, 2023)
      In this work an OpenFOAM-based framework to simulate the evolution of microsilica, which is an important byproduct in the silicon/ferrosilicon industries, is proposed. The framework decouples the combustion reaction of CO ...

    • The role of pressure and defects in the wurtzite to rock salt transition in cadmium selenide 

      Lervik, Anders; Svenum, Ingeborg-Helene; Wang, Zhaohui; Cabriolu, Raffaela; Riccardi, Enrico; Andersson, Stefan; van Erp, Titus Sebastiaan (Peer reviewed; Journal article, 2022)
      Using molecular dynamics and path sampling techniques we investigated the effect of pressure and defects in the wurtzite to rock salt transition in cadmium selenide (CdSe). In the pressure range 2–10 GPa, rate constants ...

    • Selective Vacuum Evaporation by the Control of the Chemistry of Gas Phase in Vacuum Refining of Si 

      Hoseinpur Kermani, Arman; Andersson, Stefan; Tang, Kai; Safarian, Jafar (Peer reviewed; Journal article, 2021)
      The evaporation of P from liquid Si under vacuum and reduced pressures of H2, He, and Ar was studied to evaluate the feasibility of effective P removal with insignificant Si loss. It was found that the introduction of Ar ...

    • Surface and bulk properties of chromium oxide: Implications for reduction by methane 

      Skjelbred, Kristin Marie; Åstrand, Per-Olof; Støvneng, Jon Andreas; Andersson, Stefan (Journal article; Peer reviewed, 2015)
      A computational method for Cr2O3 and Cr3C2 has been established based on a systematic investigation of functionals, basis sets and corrections for dispersion, self-interaction and relativistic effects. The suggested method ...