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Viser treff 2017-2036 av 3663
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Minimum Time Bilateral Observer Design for 2x2 Systems of Linear Hyperbolic PDEs - With Application to Oil Well Drilling State Estimation for Improved Kick Handling
(Master thesis, 2018)We consider state estimation of 1D systems of 2x2 linear first-order coupled hyperbolic PDEs, consisting of two distributed states propagating information in opposite directions but interacting across the spatial domain. ... -
Minimum Time Disturbance Rejection and Tracking Control of n+m Linear Hyperbolic PDEs
(Journal article; Peer reviewed, 2018)We extend recent results regarding disturbance rejection control of n+m linear hyperbolic partial differential equations (PDEs) in a number of ways: 1) We allow spatially varying coefficients; 2) The disturbance is allowed ... -
Minimum time observer designs for n+m linear hyperbolic systems with unilateral, bilateral or pointwise in-domain sensing
(Peer reviewed; Journal article, 2021)In this paper we derive minimum time convergent observers for systems of linear coupled first-order 1-D hyperbolic PDEs, that use either unilateral (single boundary measured), bilateral (both boundaries measured) or ... -
An MINLP Approach Integrating Predictive Method for Optimal Load Sharing in Generating Machines
(Master thesis, 2018)Gas turbines and diesel engines have generally been used in the Oil & Gas industry. As the amount of energy required for the operation is large, the efficiency of power plant operation has been subject to many works conducted ... -
Mission Performance Trade-offs of Battery-powered sUAS
(Chapter; Peer reviewed, 2017)A sensitivity analysis is presented on the influence of the weight, altitude and speed of battery-powered sUAS on the resulting stall speed, endurance and range. To aid in the determination of the aircraft performance prior ... -
Mission Planning for Fixed-wing UAVs in Wind and Icing Conditions
(Master thesis, 2020)Sterk vind og isete forhold er blant de største utfordringene rundt bruk av ubemmanede småfly over lengre distanser. Kjennskap til konkrete værforhold i området der flyvningen skal foregå, gir muligheten til å minimere de ... -
Mission Planning for Wave Driven Autonomous Surface Vessels
(Master thesis, 2020)En økt bruk av autonome sjøfarende fartøy er forventet å drastisk forandre hvordan både mennesker, gods og forskning blir håndtert i fremtiden. Den økte kapabiliteten til autonome fartøy har gjort dem til et mer aktuelt ... -
Mixed box palletizing; a suggestion to detect and pack unknown sized objects in bins using point clouds and genetic algorithms
(Master thesis, 2019)Palletering av bokser er gjort med roboter i mange år. Det er en enkel oppgave å velge en boks og stable den på en pall. Men hvis boksen har ukjent størrelse og posisjoner, er løsningen til dette problemet ikke triviell. ... -
Mixed Integer Model Predictive Control of Multiple Shale Gas Wells
(Master thesis, 2012)Horizontal wells with multistage hydraulic fracturing are today the most important drilling technology for shale gas extraction. Considered unprofitable before, the production has now become economically profitable due to ... -
Mixed-Integer Formulation of Unit Commitment problem for power systems: Focus on start-up cost
(Journal article; Peer reviewed, 2013)In this work, the Mixed-Integer (MIP) formulation for unit commitment problem (UC) for power systems is discussed. A new formulation for the start-up cost is suggested as well. This new formulation of the start-up cost ... -
Mixed-Integer Minimization of the Cost function of the Unit Commitment problem for Isolated power systems
(Journal article; Peer reviewed, 2013)Unit Commitment (UC) is a minimization problem that aims to schedule the required generating units in a power system over some time horizon to meet the demand based on minimizing the production cost. In this paper, we ... -
Mixed-Integer Nonlinear Programming Heuristics Applied to a Shale Gas Production Optimization Problem
(Master thesis, 2013)Mixed-Integer nonlinear programs(MINLPs) are a general class of nonlinear optimization problems that have a wide array of real-world applications. These problems are in general notoriously difficult to solve, and it is ... -
MLOps - challenges with operationalizing machine learning systems
(Master thesis, 2021)Det er en økende etterspørsel etter maskinlæringsapplikasjoner innenfor flere industries. Det finnes gode maskinlæringsmodeller, men det er utbredte vanskeligheter i sammenheng med å operasjonalisere dem. Mangel på verktøy ... -
Mobile Autonomous Robot: Remote Operation
(Master thesis, 2017)This thesis aims to develop a concept for unifying previous solutions on the topic of robotized maintenance and remote operation, as well as exploring possible solutions for a stereo vision system to facilitate the development ... -
Mobile Robotics in Precision Agriculture: A CAN bus interface implementation of differential drive and exploration of localization, pose estimation and autonomous navigation.
(Master thesis, 2013)A complete setup of sensors, estimators and controllers for autonomous and manual control of an unmanned dierential steered ground vehicle has been implemented in this paper. The entire system is implemented in Robot ... -
Mobile Software Development Kit for Real Time Multivariate Blood Glucose Prediction
(Journal article; Peer reviewed, 2024)In the field of blood glucose prediction, the literature is abounded with algorithms that demonstrate potential in glucose management. However, these propositions face an issue common to many machine learning algorithms: ... -
Model and Control of Satellite Formation Flying
(Master thesis, 2018)The topic of this thesis is model and control of formation flying for satellites. The focus is on formation of the satellites that has a leader-follower structure. The goal for the satellites that are in different positions, ... -
Model based control of water flow and level in a river system with hydropwer plant
(Master thesis, 2022)Enkle regulatorer som en PI-regulator er ofte brukt i implementasjon av vannstandsregulering på elvekraftverk. Slike enkle regulatorer kan være vanskelig å bruke til å implementere mer avanserte regulator funksjoner. I ... -
Model Based Early Kick/Loss Detection and Attenuation with Topside Sensing in MPD
(Peer reviewed; Journal article, 2020)Early kick/loss detection is a crucial part of safe well control, and it plays a major role in the reduction of risk and non-productive time in drilling. In conventional drilling, topside sensing is used for early kick/loss ... -
Model Based Estimation and Control of a BOS Converter
(Master thesis, 2011)Andreas Hammervold has, during his summer job at Cybernetica AS and project assignment in2010, developed a model of a BOS process for steel production. In this thesis, an estimator based ona Kalman filter should be ...