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Hittade 7 dokument
Condition monitoring system for wind turbines - based on deep autoencoders
Examensarbete på avancerad nivå, 2019 (MSc - Complex adaptive systems)
Wind turbines consist of many mechanical, electrical and hydraulic components. Failures in any of these can lead to high financial loss, both as actual repair costs and from lost production time. Often, failures do not occur instantaneously but rather as a consequence of sequential degrading. Therefore, many failures can be detected in advance using so-calle...
Measurement and Validation for Electron Beam Melting
Examensarbete på avancerad nivå, 2018 (MSc - Wireless, Photonics and Space Engineering)
Magnetic lenses are crucial components in the electron beam melting process usedfor 3d-printing at Arcam. Validating that the lenses going into machine productionare within specification is important. Therefore, this thesis has modified andconfirmed a measurement setup, the field mapper, to be used for measurement andvalidation of magnetic lenses. The field...
Determining the concentration of manganese in (Ga, Mn) As by means of X-ray Photoelectron Spectroscopy
Examensarbete på avancerad nivå, 2015 (MSc - Applied physics)
ABSTRACTThis thesis work investigates the ability of x-ray photoelectron spectroscopy(XPS) to assessthe Mn concentration in the Ga1-xMnxAs. For this purpose measurements were the performedon samples with different nominal Mn concentrations in the range 0.5-5%. The samples weresputtered with argon ions to remove surface oxide and carbon contamination, and to...
Predicting metabolic strategies in Saccharomyces cerevisiae with a kinetically constrained FBA model
Examensarbete på avancerad nivå, 2014 (MSc - Complex adaptive systems)
Metabolism is central to all life. It provides the energy and the building blocks from which the cells are constructed and maintained. Synthetic biologistsoften make genetic alterations to the enzymes involved in metabolism to improve product yields. Drastic changes in metabolism are linked to several diseases, e.g. cancer. It is therefore desirable to under...
Definition of a dynamic source term module within RASTEP
Di Dedda, Francesco
Examensarbete på avancerad nivå, 2013 (Masterarbete)
RASTEP (RApid Source TErm Prediction) is a computerized tool developed by Scandpower AB for use in the fast online diagnosis of accidents at nuclear power plants. The tool is based on a Bayesian Belief Network (BBN) that is used to determine the most likely plant state, which is associated with pre-calculated source terms. In its current design, the source t...
The dynamic mooring force on a wave energy Calculating the tensile force acting on the mooring structure from
BERNER WOLF, NICOLAS
Examensarbete på avancerad nivå, 2012 (Civilingenjör)
This thesis tries to answer the question on how to best moor a wave energy converterthat has the shape of a hose. A water wave test tank is used on a model with a scale ofapproximately 1:2.3 of that of the full size structure and the tensile force acting on themooring line is then measured with a load cell. By using Froude scaling these measuredforces are th...
Internal Evolution for Agent Cognition - Agent-Based Modelling of an Artificial Stock Market
Examensarbete på avancerad nivå, 2011 (Masterarbete)
Agent-Based Modeling (ABM) is a powerful simulation technique with applications in several fields, in particular social sciences. Artificial Stock Market (ASM), introduced by a group of researchers at Santa Fe Institute (SFI) in the mid 90’s, is one of thepioneering works in which the application of agent-based modeling is examined beingused to model a stock...