PhD theses in Engineering and Sciences: Nye registreringer
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Exploring freshwater challenges for conservation efforts : Insights into threatened and invasive fish species using environmental DNA
(Doctoral dissertations at University of Agder; no. 490, Doctoral thesis, 2024)Ferskvannsøkosystemer trues av habitatendringer, menneskeskapte barrierer, fremmede arter, forurensning, overfiske og klimaendringer. Selv om internasjonale lover og forskrifter støtter bevaring, kreves det fortsatt betydelig ... -
Smart Sensing and Communications for UAVs/Drones
(Doctoral dissertations at University of Agder; no 485, Doctoral thesis, 2024)Reliable sensing and energy-efficient communication are an integral part of unmanned aerial vehicle (UAV)-based applications. However, it is challenging to ensure reliable sensing under all weather conditions. Furthermore, ... -
Spectrum Surveying for Machine Learning-Assisted UAV Communications
(Doctoral dissertations at University of Agder; no. 488, Doctoral thesis, 2024)The use of unmanned aerial vehicles (UAVs) has become widespread, spanning applications from surveillance to wireless communications infrastructure. Remarkably, it has been proposed that UAVs can be utilized as aerial base ... -
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 ... -
Data-driven Transfer Learning Methods for Wireless Networks
(Doctoral dissertations at University of Agder; no. 475, Doctoral thesis, 2024)Radio maps provide information about spatial signal strength and network coverage in a designated geographical area. The estimation of accurate radio maps is necessary to improve the performance of many applications of ... -
Membrane electrode assemblies for anion exchange membrane water electrolysers
(Doctoral dissertations at University of Agder;no. 479, Doctoral thesis, 2024)Membrane electrode assemblies for anion exchange membrane water electrolysers Developing technologies that may reduce our climate impact is always beneficial, though our current climate issues render the advancement of ... -
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, ... -
Geometry-Based Channel Models for Car-to-Car Communication Systems and Applications
(Doctoral Dissertations at the University of Agder; no. 113, Doctoral thesis, 2015)In last two decades, intelligent transportation systems (ITS) have received considerable attention due to new road traffic safety applications that significantly improve the efficiency of traffic flow and reduce the number ... -
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 ... -
Synchronising Wisdom and Implementation: A Formal ODD Approach to Expressing Insights on Bullying
(Doctoral Dissertations at the University of Agder;no. 441, Doctoral thesis, 2023)The Social Simulation methodology, a mix of traditionally unassociated fields, utilises computer models to describe, understand, predict, and reflect on social phenomena. The model creation process typically requires the ... -
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 ... -
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 ... -
Autonomous Demand Side Management of Electric Vehicles
(Doctoral Dissertations at the University of Agder; no. 411, Doctoral thesis, 2023)Demand-side management approaches that exploit the temporal flexibility of electric vehicles have attracted much attention in recent years due to the increasing market penetration. These demand-side management measures ... -
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 ... -
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, ... -
Long term stability of silicide based thermoelectric materials and modules
(Doctoral Dissertations at the University of Agder; no. 412, Doctoral thesis, 2023)Silicide-based thermoelectric generators are potential candidates for waste heat recovery at temperatures below 500 C. For the last two decades, the conversion efficiency of modules based on n-type magnesium silicides and ... -
Approaches and strategy development towards more sustainable ultra-high-performance concrete
(Doctoral Dissertations at the University of Agder; no. 410, Doctoral thesis, 2023)The main research objective of this thesis is to investigate how the use of UHPC can contribute to improving the sustainability of the concrete industry by investigating alternative approaches and develop a comprehensive ... -
Reuse of Water and Nutrients in Soilless Plant Culture
(Doctoral Dissertations at the University of Agder; no. 403, Doctoral thesis, 2023)This dissertation proposes two approaches to mitigating the dependency of soilless culture on scarce mineral fertilisers. The first approach aims to increase the lifetime of the NS used in recirculating hydroponic systems, ... -
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 ... -
The development of students’ mathematical competencies : The case of biology students
(Doctoral Dissertations at the University of Agder; no. 396, Doctoral thesis, 2023)This research focuses on the development of mathematical competencies of first-year university students in a Biology department as they engage in nonroutine open-ended mathematical tasks set in the context of biology. The ...