• Optimal time decay of the Boltzmann equation with frictional force 

      Wang, Ying; Zaihong, Jiang (Journal article; Peer reviewed, 2011)
      In this paper, we use the combination of energy method and Fourier analysis to obtain the optimal time decay of the Boltzmann equation with frictional force towards equilibrium. Precisely speaking, we decompose the equation ...
    • Optimal timing and capacity choice under the rate-of-return renewable energy support 

      Kozlova, Mariia; Fleten, Stein-Erik; Hagspiel, Verena (Journal article; Peer reviewed, 2020)
      This article presents a stylized renewable energy (RE) investment project profitability analysis under a rate-of-return RE support type. We use a dynamic programming approach to value the real options. While the method is ...
    • Optimal timing of assessment tasks depending on experience level of surgical trainees 

      Våpenstad, Cecilie; Hofstad, Erlend Fagertun; Bernstein, Tor Eivind; Aadahl, Petter; Johnsen, Gjermund; Mårvik, Ronald (Peer reviewed; Journal article, 2019)
      Introduction: Box trainers with motion analysis are important add-ons to surgical training and skills assessment outside the operating room, given that they exhibit construct validity. Material and methods: Four different ...
    • Optimal timing of onshore wind repowering in Germany under policy regime changes: A real options analysis 

      Madlener, Reinhard; Glensk, Barbara; Gläsel, Lukas (Journal article; Peer reviewed, 2019)
      In this paper, we investigate capacity expansion, the technological development of wind turbine generators, and the merits of onshore wind repowering in Germany. We analyze the regulatory framework that is presently in ...
    • Optimal trafikkdirigering i drosjeselskaper 

      Helland, Jon Bendik (Master thesis, 2006)
      Det skal utvikles algoritmer for optimal trafikkdirigering i drosjeselskaper.
    • Optimal trajectory planning for robotized tiling of floors 

      Nornes, Stein Melvær (Master thesis, 2013)
      This thesis describes the strategy of a new approach for automated tilesetting currently under development by nLink AS in Sogndal. The main focus of the thesis is the development of an appropriate strategy for path planning ...
    • Optimal Transmission Switching under Demand Uncertainty 

      Prydz, Mari Hardersen; Aarsten, Heidi (Master thesis, 2015)
      Denne oppgaven studerer optimeringsproblemet, Optimal Transmission Switching (OTS). Motivasjonen for denne oppgaven stammer fra våre observasjoner om at testcasene som er brukt til å evaluere potensialet til dette problemet ...
    • Optimal transmission-constrained scheduling of spatio-temporally dependent observations using age-of-information 

      Håkansson, Victor Wattin; Dasanadoddi Venkategowda, Naveen Kumar; Werner, Stefan; Varshney, Pramod K. (Peer reviewed; Journal article, 2022)
      This paper proposes an optimal scheduling policy for broadcasting spatio-temporally dependent observations to two remote estimators over a finite time horizon. The system comprises a scheduler that can broadcast one ...
    • Optimal tuning of PID controllers: And the verification of the SIMC rules 

      Grimholt, Chriss (Doctoral theses at NTNU;2018:389, Doctoral thesis, 2018)
      Optimal tuning of PID controllers and the verification of the SIMC rules The simple PI/PID controller is the most used controller in the process industry. However, finding good settings for this simple controller is not ...
    • Optimal Turbine Re-Investment Strategies in Hydropower 

      Teige, Amalie Marie; Dønnestad, Eirik Magnus (Master thesis, 2019)
      Denne oppgåva tek føre seg investeringvala til eit vasskraftselskap som har ein turbin med avtakande verknadsgrad. Selskapet kan velje mellom to strategiar: (i) å erstatte turbinen direkte, eller (ii) å oppgradere den ...
    • Optimal Turbine Re-Investment Strategies in Hydropower 

      Dønnestad, Eirik Magnus; Teige, Amalie Marie (Master thesis, 2019)
      Denne oppgåva tek føre seg investeringvala til eit vasskraftselskap som har ein turbin med avtakande verknadsgrad. Selskapet kan velje mellom to strategiar: (i) å erstatte turbinen direkte, eller (ii) å oppgradere den ...
    • Optimal use of hydro resources in the Chiriquí Viejo Basin, Panama 

      Mabula Andrew (Master thesis, 2019)
      The Chiriquí Viejo water basin is located in the Chiriquí province of Panama which shares boarders with Costa Rica on the western borders of the country. It is characterized by an average altitude of 1100 mm and annual ...
    • OPTIMAL USE OF HYDRO RESOURCES IN THE VICTORIA NILE BASIN 

      MWASE CHARLES (Master thesis, 2019)
      Uganda’s energy demand has been on a steady increase of about eight percent over the past decade and is expected to increase even more in the future. Several micro, small and large hydropower plants have been constructed ...
    • Optimal Use of Liquefied Natural Gas (LNG) Cold Energy in Air Separation Units 

      Kim, Donghoi; Giametta, Roxane Edith Helene; Gundersen, Truls (Peer reviewed; Journal article, 2018)
      One of the solutions to utilizing liquefied natural gas (LNG) cold energy at import terminals is supplying it to an air separation unit (ASU), replacing an external refrigeration process and reducing the power consumption. ...
    • Optimal use of Process Streams as Working Fluids in Work and Heat Exchange Networks (WHENs) 

      Yu, Haoshui; Fu, Chao; Gundersen, Truls; Gencer, Emre (Chapter, 2020)
      Design of Heat Exchanger Networks (HENs) has been widely studied and applied since it can significantly reduce energy consumption in the process industries. However, pressure effects are ignored in HENs. To consider ...
    • Optimal use of resource flexibility in distribution systems 

      Dubarry, Fleur (Master thesis, 2017)
      To cope with the increasing share of dispatchable renewable energy sources, the consumer needs to evolve from being a regular passive consumer, to being a prosumer. The prosumer produces energy through residential solar ...
    • Optimal use of the hydro resources in Albania 

      Ose, Heidi Theresa (Master thesis, 2009)
      This Master thesis analyzes the optimal use of the hydro resources in Albania. Albania is a country totally dependent on hydro power. More than 90% of the electricity today comes from hydro power, mainly from the Drin river ...
    • Optimal Utilisation of Grid Capacity for Connection of New Renewable Power Plants in Norway 

      Stave, Viljar Stensaker (Master thesis, 2021)
      Det økende fokuset på klimaendringer forårsaker en stadig større andel av variable fornybare energikilder i kraftsystemet. Dette gir systemoperatører nye utfordringer, da slike energikilder har uforutsigbar produksjon og ...
    • Optimal utilisation of unbound crushed aggregates for road construction 

      Fladvad, Marit (Doctoral thesis, 2020)
      Aggregates are construction materials produced from non-renewable rock resources. Because high-quality aggregate resources have limited availability, utilisation of aggregates should be considered carefully to prevent ...
    • Optimal utilization of compression heat in liquid air energy storage 

      Liu, Zhongxuan; He, Ting; Kim, Donghoi; Gundersen, Truls (Peer reviewed; Journal article, 2023)
      Liquid air energy storage (LAES) is regarded as one of the promising large-scale energy storage technologies due to its characteristics of high energy density, being geographically unconstrained, and low maintenance costs. ...