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Estimation in Large Mechanistic Models
(Master thesis, 2011)The main objective in this thesis is to model an offshore processing plant, and adapt it to a given dataset by off-line parameter estimation and then perform an on-line state and parameter estimation. The aim is to use the ... -
Estimation in nonlinear constrained systems with severe disturbances
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:261, Doctoral thesis, 2008)Aluminium is a metal playing an important role in all modern life of today, and it will continue to play an important role in many years to come. As with every business and everyone who participates in the global economy, ... -
Estimation in uncertain switched systems using a bank of interval observers: local vs glocal approach
(Peer reviewed; Journal article, 2021)This paper discusses some issues related with the design of a bank of interval observers for uncertain switched systems, in which several sources of uncertainty are considered: parametric uncertainties, unknown disturbances, ... -
Estimation of Angle of Attack and Sideslip Angle applied in an Airborne Wind Energy System
(Master thesis, 2019)Hovedbidraget i denne oppgaven er implementasjon og anvendelse av en metode for estimering av angrepsvinkler for ubemannede luftfartøy - anvendt på teknologi for utnyttelse av høydevindkraft. Den implementerte metoden er ... -
Estimation of Bottomhole Pressure for Managed Pressure Drilling: Comparison of Nonlinear Estimators
(Master thesis, 2011)To avoid hole stability problems in an increasingly fierce drilling environment, the demand for accurate control of the pressure profile during drilling operations is rising. As standard instrumentation of drilling rigs ... -
Estimation of fish catch potential using assimilation of synthetic measurements with an individual-based model
(Journal article; Peer reviewed, 2023)A large fraction of costs in wild fisheries are fuel related, and while much of the costs are related to gear used and stock targeted, search for fishing grounds also contributes to fuel costs. Lack of knowledge on the ... -
Estimation of Formation Water rate using Unscented Kalman filtering with application to the Snøhvit Gas/Condensate Field.
(Master thesis, 2013)In this thesis, a simplified model of the MEG loop at the Snøhvit field is established and implemented, together with an unscented Kalman filter. The model is tested with and without the Kalman filter. The model is tested ... -
Estimation of glucose rate of appearance in portal vein circulation using a phenomenological-based model
(Peer reviewed; Journal article, 2023)The joint work of the stomach and the small intestine plays a fundamental role in human digestion. In the stomach, food is turned into a semi-fluid mixture that is slowly released into the small intestine, where most ... -
Estimation of inner-domain temperatures for a freezing process
(Journal article; Peer reviewed, 2014)In this paper a state observer for a distributed parameter system (DPS) with nonconstant parameter functions is presented. The DPS describes the freezing of foodstuff in vertical plate freezers and is a nonlinear heat ... -
Estimation of Insulin Sensitivity in Intensive Care Patients
(Master thesis, 2017)GlucosSet has developed a continuous intravenous sensor for blood glucose measurement with good accuracy and the ability to measure the distribution of plasma volume, something which can give new possibilities in estimating ... -
Estimation of lactate concentration during excercise
(Master thesis, 2021)Denne avhandlingen utforsker utviklingen of implementering av modeller og estimering av kontinuerlig laktat konsentrasjon hos utøvere under trening. Målet med en slik estimator er å bestemme laktakkonsentrasjonen hos en ... -
Estimation of multiple frequencies in pathological hand tremor for a semi-active 2DOF dynamic vibration absorber designed for tremor suppression
(Master thesis, 2018)Pathological tremor is the most prevalent movement disorder in the world, where ~14.5% of people aged 50-89 years suffer from it. The most common types of tremor are by far essential tremors (ET) and Parkinson Disease ... -
Estimation of Sea Ice Drift Velocity
(Master thesis, 2013)The Arctic is an important region containing large amount of unused potential. It is expected that a large amount of the worlds undiscovered oil and gas resources are located here, and the shortest route between northern ... -
Estimation of Structural Geometry: Sensors and Software to Generate Real-time Maps of Structural Geometry in Fish Farms
(Master thesis, 2019)Denne oppgaven er en del av et forskningsprosjekt kalt Artifex, på SINTEF Ocean AS. Prosjektet tar sikte på å utvikle et generelt system som brukes til fjernoperasjoner på fiskeanlegg for å redusere behovet for tilstedeværende ... -
Estimation of Target Detectability for Maritime Target Tracking in the PDA Framework
(Chapter, 2019)Abstract—The detection probability of maritime vessels may change over time, either slowly or more abruptly, due to effects such as sea state and varying aspect angle. If the varying detectability is not accounted for in ... -
Estimation of UAV Position, Velocity and Attitude Using Tightly Coupled Integration of IMU and a Dual GNSS Receiver Setup
(Master thesis, 2018)Increasing use of UAVs in high-precision applications, such as georeferencing and photogrammetry, increases the requirements on the accuracy of the estimated position, velocity and attitude of the vehicle. Commercial systems ... -
Estimation of wax and hydrate deposition in a Cold Flow cooling system
(Master thesis, 2019)Voks- og hyrdratavleiring har vært et problem i petroleumsbransjen en stund. EMPIG AS har utviklet et Cold flow kjøling system. Det er et 300 m langt rørsystem plassert inne i en container for å ha et kontrollert område ... -
Estimation of Wind Velocities and Aerodynamic Coefficients for UAVs using standard Autopilot Sensors and a Moving Horizon Estimator
(Chapter; Peer reviewed, 2017)While operating any aircraft it is vital to know its current flight state. Some of the most important variables to assess the flight state are the airspeed, the angle of attack and the sideslip angle. Larger aircraft are ... -
Estimation with low measurement frequency
(Master thesis, 2017)The invention of the computer has triggered a technological revolution in many parts of society. For the process industry, computers have led to improvement in both production rates, safety and profits. One way this has ... -
Estimering av spedbarns bevegelser ut fra videodata
(Master thesis, 2008)For å kunne gi best mulig behandling av nevromotoriske sykdommer hos barn, er det viktig at diagnosen stilles så tidlig som mulig. Derfor pågår det et forskningsprosjekt der man studerer barns sporadiske bevegelser når de ...