Browsing NTNU Open by Title
Now showing items 67013-67032 of 100652
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Optimal komprimering av støttefylling på fyllingsdammer
(Master thesis, 2019)Komprimeringarbeidet har stor innvirkning på kvaliteten til en steinfyllingsdam med tanke på stabilitet, setningsbilde, vedlikehold og levetid. Det finnes ulike metoder for komprimering av steinfylling for eksempel spyling ... -
Optimal konstruksjon av varmesystem i idrettsflater
(Bachelor thesis, 2021)I elitefotball kreves det et undervarmesystem for å kunne benytte kunstgressbaner i vinterhalvåret. Det kreves mye energi for å kunne holde spilleflaten myk til spillerne slik de unngår skader. I denne oppgaven fokuseres ... -
Optimal kontrol av kontrollerbar pitch propell
(Master thesis, 2016)I senere år har det blitt gjort store framskritt innenfor propeller med kontrollerbar pitch. Hovedmålet til denne masteroppgaven er å designe en kontroller som finner den optimale kombinasjonen av akslingshastighet og ... -
Optimal lagerstyring av kontanter i minibanker med usikker etterspørsel
(Master thesis, 2014)Lønnsomheten av norske bankers drift av minibanker er redusert de siste årene. Dette som en konsekvens av blant annet en kraftig økning av korttransaksjoner og dertil nedgang i kontantuttak fra minibanker. Redusert lønnsomhet ... -
Optimal Linear Controller for Minimizing DC Voltage Oscillations in MMC-Based Offshore Multiterminal HVDC Grids
(Peer reviewed; Journal article, 2021)The paper aims at minimizing DC voltage oscillations in offshore multiterminal high-voltage direct current (HVDC) grids based on modular multilevel converters (MMCs). The DC voltage stability is a crucial factor in ... -
Optimal liquified natural gas (LNG) cold energy utilization in an Allam cycle power plant with carbon capture and storage
(Peer reviewed; Journal article, 2021)Oxy-combustion power cycles are an alternative technology for electricity generation to facilitate carbon capture and storage (CCS). Among oxy-combustion power cycles, the Allam cycle is one of the most promising technologies ... -
Optimal load management strategy for large electric vehicle charging stations with undersized charger clusters
(Peer reviewed; Journal article, 2021)This study proposes a load management strategy for parking and charging facilities with the capacity to serve several hundreds of electric vehicles. The strategy is built upon two assumptions on power distribution systems ... -
Optimal location of ammonia replenishment to support the Northeast Asia - US Pure Car Carrier green corridor
(Master thesis, 2023)Skip er regnet som den mest kostnadseffektive metoden for frakt av varer rundt om i verden. Omtrent 80% av den globale verdenshandelen foregår i dag på sjøen og denne formen for transport er i stor grad drevet på tungolje, ... -
Optimal Location of Energy Replenishment Stations for Zero-Emission Vessels
(Master thesis, 2022)For å muliggjøre det grønne skiftet innen sjøtransport, så må nullutslippsenergibærere tas i bruk av industrien. En betydelig utfordring for noen av nullutslippsenergibærerne (f.eks. hydrogen) er energilagringskapasitet. ... -
Optimal LQG Controller for Variable Speed Wind Turbine Based on Genetic Algorithms
(Journal article; Peer reviewed, 2012)Linear Quadratic Gaussian (LQG) control methodology shows useful properties of good performance and robust-ness in controller design applied to wind turbine. Typically, in the design procedure LQG method is necessary to ... -
Optimal Maintenance for Degrading Assets in the Context of Asset Fleets-A Case Study
(Peer reviewed; Journal article, 2020)Decision-making for maintenance of engineering assets is a common challenge in the process industry due to ongoing degradation. With an increasing company-size, this problem becomes more complex from an operational and ... -
Optimal Maintenance Scheduling for Washing of Compressors to Increase Operational Efficiency
(Peer reviewed; Journal article, 2019)The need for simultaneously decreasing carbon emissions and increasing operational profit motivates gas turbine and gas compressor operators to understand, minimize and control performance deterioration. Fouling is one of ... -
Optimal Management for Megawatt Level Electric Vehicle Charging Stations with a Grid Interface Based on Modular Multilevel Converter
(Peer reviewed; Journal article, 2021)This paper proposes a strategy to manage an electric vehicle charging station (EVCSs) with a grid-side interface based on a Modular Multilevel Converter (MMC). In such a system, heterogeneous behavior of electric vehicles ... -
Optimal management of ADHD in older adults
(Journal article; Peer reviewed, 2016)Background: The manifestation of attention-deficit/hyperactivity disorder (ADHD) among older adults has become an interesting topic of interest due to an increasing number of adults aged 50 years and older (≥50 years) ... -
Optimal management of green certificates in the Swedish-Norwegian market
(Journal article, 2017)We propose and investigate a valuation model for the income of selling tradeable green certificates (TGCs) in the Swedish–Norwegian market, formulated as a singular stochastic control problem. Our model takes into account ... -
Optimal maritime fleet composition under future greenhouse gas emissions restrictions and uncertain fuel prices
(Master thesis, 2023)Shippingindustrien er en stor bidragsyter til globale klimagassutslipp. En viktig faktor for industrien sine store utslipp er dens avhengighet av tung fyringsolje med høyt karboninnhold. For å redusere utslippene, bør ... -
Optimal master production scheduling in ERP systems for ETO companies - A maturity model
(Master thesis, 2015)Due to the high competitiveness in the complex ship-components market, Norwegian companies are pursuing for new ways to improve their efficiency and effectiveness in order to remain competitive. This sector that has an ... -
Optimal Metric Search Is Equivalent to the Minimum Dominating Set Problem
(Chapter, 2020)In metric search, worst-case analysis is of little value, as the search invariably degenerates to a linear scan for ill-behaved data. Consequently, much effort has been expended on more nuanced descriptions of what performance ... -
Optimal microgrid operation considering battery degradation using stochastic dual dynamic programming
(Chapter, 2019)Intermittent energy sources demand temporal storages to balance generation and load, and batteries stand out as an alternative. However, the lifetime is limited, and cycling depth affects the battery degradation rate. ... -
Optimal Mission Planning for Fixed-Wing UAVs with Electro-Thermal Icing Protection and Hybrid-Electric Power Systems
(Chapter, 2020)Harsh weather conditions such as wind and icing are severe debilitators to the operations of unmanned aerial vehicles in terms of performance, safety and reliability. Forecasts of atmospheric parameters in the mission area ...