Blar i PhD theses in Engineering and Sciences på emneord "VDP::Teknologi: 500"
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Adaptive Control of Systems with Quantization and Time Delays
(Doctoral Dissertations at the University of Agder; no. 413, Doctoral thesis, 2023)This thesis addresses problems relating to tracking control of nonlinear systems in the presence of quantization and time delays. Motivated by the importance in areas such as networked control systems (NCSs) and digital ... -
The Augmented Learner : The pivotal role of multimedia enhanced learning within a foresight-based learning model designed to accelerate the delivery of higher levels of learner creativity
(Doctoral Dissertations at the University of Agder; no. 374, Doctoral thesis, 2022)The central theme for this dissertation lies at the intersection of multisensory technology enhanced learning, the field of foresight and transformative pedagogy and their role in helping to develop greater learner creativity. ... -
Condition monitoring of fibre ropes using machine learning
(Doctoral Dissertations at the University of Agder; no. 368, Doctoral thesis, 2022)The application of fibre ropes in offshore lifting operations has significant potential for further development. With minimum breaking loads (MBL) equivalent to steel wire at similar diameters and almost neutral buoyancy ... -
Digital Twin technology toward more sustainable buildings
(Doctoral dissertations at University of Agder;nr. 440, Doctoral thesis, 2023)The integration of digital technologies in the form of sensor networks and automation systems has a significant impact on the Architecture, Engineering, and Construction- Facility Management (AEC-FM) industry in terms of ... -
Enhancement of Charging Resource Utilization of Electric Vehicle Fast Charging Station with Heterogeneous EV Users
(Doctoral dissertations at University of Agder;no. 416, Doctoral thesis, 2023)This thesis presents innovative charging resource allocation and coordination strategies that maximize the limited charging resources at FCS with heterogeneous EV users. It allows opportunistic EV users (OEVs) to exploit ... -
Industrial Perception of a Human World : A Hitchhiker's Guide to Autonomy
(Doctoral Dissertations at the University of Agder; nr. 341, Doctoral thesis, 2021)For several decades, industrial automation has helped companies save money and increase workplace safety so that many repetitive and dangerous tasks may be performed in a cost-efficient and secure manner. These systems ... -
Interpretable Architectures and Algorithms for Natural Language Processing
(Doctoral Dissertations at the University of Agder; no. 388, Doctoral thesis, 2022)This thesis has two parts: Firstly, we introduce the human level-interpretable models using Tsetlin Machine (TM) for NLP tasks. Secondly, we present an interpretable model using DNNs. The first part combines several ... -
Laboratory-based study of viscoelastic, viscoplastic and fatigue damage of asphalt concrete
(Doctoral dissertations at University of Agder; no. 466, Doctoral thesis, 2024)Asphalt concrete is one of the most important road building materials worldwide. This material exhibits unique chemical, physical and mechanical properties. The most well-known mechanical properties are the viscoelastic, ... -
Machine Learning Applications for Load Predictions in Electrical Energy Network
(Doctoral Dissertations at the University of Agder; no. 376, Doctoral thesis, 2022)In this work collected operational data of typical urban and rural energy network are analysed for predictions of energy consumption, as well as for selected region of Nordpool electricity markets. The regression techniques ... -
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 ... -
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. ... -
Real-Time Fault Diagnosis of Permanent Magnet Synchronous Motor and Drive System
(Doctoral Dissertations at the University of Agder; no. 414, Doctoral thesis, 2023)Permanent Magnet Synchronous Motors (PMSMs) have gained massive popularity in industrial applications such as electric vehicles, robotic systems, and offshore industries due to their merits of efficiency, power density, ... -
Solar cell degradation : the role of moisture ingress
(Doctoral Dissertations at the University of Agder; no. 420, Doctoral thesis, 2023)Moisture ingress is one of the key fault mechanisms responsible for photovoltaic (PV) devices degradation. Moisture and moisture induced degradation (MID) products can attack the solar cell and the PV module components ... -
Techno-Economic Performance Evaluation of Photovoltaic based Micro-Grid with Energy Management Strategies
(Doctoral Dissertations at the University of Agder; no. 313, Doctoral thesis, 2021)The operational performance of grid connected micro-grid system can be affected by many factors e.g. techno-economic sizing, appropriate energy management strategy, geographical locations, grid constrains and electricity ... -
Temperature coefficients and crystal defects in multicrystalline silicon solar cells
(Doctoral Dissertations at the University of Agder; no. 300, Doctoral thesis, 2020)The conversion efficiency of a photovoltaic device is strongly dependent on the operating temperature. For most devices, the efficiency, and hence the power production, decreases with increasing temperature due to fundamental, ... -
Theoretical Studies in Solar Cell Physics
(Doctoral Dissertations at the University of Agder; no. 390, Doctoral thesis, 2022)In this thesis, we develop analytical models with the purpose of expanding knowledge and gaining understanding of some of the internal mechanisms that limit the efficiency of single-junction solar cells. We focus on three ... -
Uncertainty analysis of 100-year flood maps under climate change scenarios
(Doctoral Dissertations at the University of Agder; no. 392, Doctoral thesis, 2022)Floods are natural disastrous hazards that throughout history have had and still have major adverse impacts on people’s life, economy, and the environment. One of the useful tools for flood management are flood maps, which ...