Browsing PhD theses in Engineering and Sciences by Title
Now showing items 71-90 of 124
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Model-driven and Compositional Service Creation in the Internet of Services
(Doctoral dissertations at the University of Agder;45, Doctoral thesis; Peer reviewed, 2012)In the Future Internet, billions of devices will be connected to the Internet. Devices at any levels of hierarchy provide software functionality that can be used by others. We can call the device’s functionality a service, ... -
Model-Driven Data Integration for Emergency Response : Doctoral Dissertation for the Degree Philosophiae Doctor (PhD) at the Faculty of Engineering and Science, Specialization in Information and Communication Technology
(Doctoral dissertations at University of Agder;, Doctoral thesis, 2017) -
Modeling and Control of Flexible Link Manipulators
(Doctoral Dissertations at the University of Agder; no. 373, Doctoral thesis, 2022)Autonomous maritime navigation and offshore operations have gained wide attention with the aim of reducing operational costs and increasing reliability and safety. Offshore operations, such as wind farm inspection, sea ... -
Modeling, Simulation and Prediction of Vehicle Crashworthiness in Full Frontal Impact
(Doctoral Dissertations at the University of Agder; no. 400, Doctoral thesis, 2023)Vehicle crashworthiness assessment is critical to help reduce road accident fatalities and ensure safer vehicles for road users. Techniques to assess crashworthiness include physical tests and mathematical modeling and ... -
Modelling and Detecting Faults of Permanent Magnet Synchronous Motors in Dynamic Operations
(Doctoral Dissertations at the University of Agder; no. 384, Doctoral thesis, 2022)Permanent magnet synchronous motors (PMSMs) have played a key role in commercial and industrial applications, i.e. electric vehicles and wind turbines. They are popular due to their high efficiency, control simplification ... -
Modelling, Analysis, and Simulation of Underwater Acoustic Channels : Doctoral Dissertation for the Degree Philosophiae Doctor (PhD) at the Faculty of Engineering and Science, Specialization in Information and Communication Technology
(Doctoral dissertations at University of Agder;, Doctoral thesis, 2017) -
Motion Control of Hydraulic Winch Using Variable Displacement Motors
(Doctoral Dissertations at the University of Agder; no. 305, Doctoral thesis, 2020)To compete in the open market of the offshore crane industry, it is imperative for the manufacturer to continuously improve crane operability. In this context, the crane operability is expressed by means of a so-called ... -
Multilevel Inverters with Reduced Component Count for Energy Systems
(Doctoral Dissertations at the University of Agder; no. 339, Doctoral thesis, 2021)Multilevel inverters (MLIs) have gained increasing interest for advanced energy-conversion systems with a wide range of voltage levels, due to their attractive features of low harmonic contents, low dv/dt stress, low ... -
Multiobjective Optimization and Multivariable Control of Offshore Wind Turbine System
(Doctoral dissertations at University of Agder; no. 68, Doctoral thesis, 2013)Renewable energy is a hot topic all over the world. Nowadays, there are several sustainable renewable power solutions out there; hydro, wind, solar, wave and biomass to name a few. Most countries have a tendency to want ... -
A Neural Network-Based Situational Awareness Approach for Emergency Response
(Doctoral Dissertations at the University of Agder; no. 264, Doctoral thesis, 2020) -
Non-convex Optimization for Resource Allocation in Wireless Device-to-Device Communications
(Doctoral Dissertations at the University of Agder; no. 293, Doctoral thesis, 2020)Device-to-device (D2D) communication is considered one of the key frameworks to provide suitable solutions for the exponentially increasing data tra c in mobile telecommunications. In this PhD Thesis, we focus on the ... -
Numerical modelling and validation of Hydrothermal liquefaction of Lignin. Shrinking core approach on particle decomposition and a comparative analysis of biocrude and HTL char
(Doctoral dissertations at the University of Agder;362, Doctoral thesis, 2021) -
On measuring and theorising mathematical identity
(Doctoral dissertations at University of Agder;, Doctoral thesis, 2018) -
Online Condition Monitoring of Electric Powertrains using Machine Learning and Data Fusion
(Doctoral Dissertations at the University of Agder; no. 270, Doctoral thesis, 2020)Safe and reliable operations of industrial machines are highly prioritized in industry. Typical industrial machines are complex systems, including electric motors, gearboxes and loads. A fault in critical industrial machines ... -
Online Machine Learning for Graph Topology Identification from Multiple Time Series
(Doctoral Dissertations at the University of Agder; no. 298, Doctoral thesis, 2020)High dimensional time series data are observed in many complex systems. In networked data, some of the time series are influenced by other time series. Identifying these relations encoded in a graph structure or topology ... -
Opportunities and Challenges when Students Work with Vocationally Connected Mathematics Tasks
(Doctoral Dissertations at the University of Agder; no. 309, Doctoral thesis, 2021)Students in vocational education in Norway take a compulsory mathematics course in the first year of their programme. This course offers opportunities for engaging with mathematics which can be highly relevant to practice ... -
Predicting the fatigue damage evolution in welded steel joints
(Doctoral dissertations at University of Agder; no. 484, Doctoral thesis, 2024)The present thesis is investigating the fatigue damage evolution in welded steel joints subjected to dynamic repetitive loading. The work embraces various joint geometries and loading modes. The focus is on the fatigue ... -
Processes of mathematical inquiry in kindergarten
(Doctoral dissertations at University of Agder;, Doctoral thesis, 2019) -
Production and application of sustainable metallurgical biochar pellets
(Doctoral Dissertations at the University of Agder; no. 284, Doctoral thesis, 2020)The effective decarbonization of our society must be boosted through the promotion of efficient alternatives to fossil fuels. This transition should take place gradually, involving a broad range of actors and technologies. ...