Department of Engineering Sciences: Nye registreringer
Viser treff 1-20 av 1119
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Estimation of number of unmanned aerial vehicles in a scene utilizing acoustic signatures and machine learning
(Journal article; Peer reviewed, 2023)With the exponential growth in unmanned aerial vehicle (UAV)-based applications, there is a need to ensure safe and secure operations. From a security perspective, detecting and localizing intruder UAVs is still a challenge. ... -
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, ... -
Adaptive time delay based control of non-collocated oscillatory systems
(Chapter, 2024)Time delay based control, recently proposed for non-collocated fourth-order systems, has several advantages over an observer-based state-feedback compensation of the low-damped oscillations in output. In this paper, we ... -
Exploring high-temperature carbonization effects on petroleum coke for use in sodium-ion battery anodes
(Master thesis, 2024)With the rapid growth of battery usage in both grid-storage and electric vehicle applications, the incentives for exploring alternative batteries outside the traditional lithium-ion batteries have increased exponentially. ... -
A novel MIMO car-to-car channel model based on the geometrical curved street scattering model
(Chapter, 2012)This paper introduces a novel multiple-input multiple-output (MIMO) car-to-car (C2C) channel model, which is based on a geometrical curved street scattering model. Starting from the geometrical model, a MIMO reference ... -
Detection and Discrimination of Inter-Turn Short Circuit and Demagnetization Faults in PMSMs Based on Structural Analysis
(Chapter, 2021)This paper presents a fault diagnosis method based on structural analysis of permanent magnet synchronous motors (PMSMs), focusing on detecting and discriminating two of the most common faults in PMSMs, namely demagnetization ... -
Beneficial use of recycled aggregates from concrete sludge using a new dry washing technology
(Peer reviewed; Journal article, 2024)Demands for a more sustainable concrete production with reduced waste streams and lower carbon footprint has introduced new solutions that transform waste streams into recyclable raw materials and bring them back into the ... -
Investigation of cell orientation on cycling and ageing behaviour of 18650 cells, a study of commercial lithium-ion battery cell degradation in aging experiments.
(Master thesis, 2024)This master’s thesis investigates the impact of battery cell orientation on cycling and aging behaviour, focusing exclusively on Samsung 35E - 18650 cells. Previous research has suggested a recovery and gravity effect in ... -
Structural health monitoring of the mooring system for a dual-spar floating wind farm.
(Master thesis, 2024)The expansion of offshore wind energy into floating platforms introduces unique challenges, particularly in the stability and maintenance of mooring systems, which is crucial for maintaining structural integrity. This study ... -
Dynamic analysis of shared anchor loads for a prototype floating offshore wind farm
(Master thesis, 2024)Floating offshore wind turbines are subjected to hydrodynamic and aerodynamic loads that affect the design criteria of the anchor and mooring systems. An anchor system with a well-designed shared anchor (SA) can help reduce ... -
Cost optimization of green hydrogen production at Pikerfoss RoR hydropower plant
(Master thesis, 2024)More sustainable energy solutions are of high interest as the global energy demand continues to grow. Hydropower is a well-developed renewable energy technology that has great potential for integrating power-to-gas technology. ... -
A deterministic hosting capacity analysis for penetration of load and production on medium voltage distribution grid in Agder
(Master thesis, 2024)In this master thesis a deterministic hosting capacity calculations were done. Hosting capacity is the residual power capacity in the grid, available for new customers who wish to connect to the. Locations and cases were ... -
A deterministic hosting capacity analysis for penetration of load and production on medium voltage distribution grid in Agder
(Master thesis, 2024)In this master thesis a deterministic hosting capacity calculations were done. Hosting capacity is the residual power capacity in the grid, available for new customers who wish to connect to the. Locations and cases were ... -
Structural health monitoring of the mooring system for a dual-spar floating wind farm
(Master thesis, 2024)The expansion of offshore wind energy into floating platforms introduces unique challenges, particularly in the stability and maintenance of mooring systems, which is crucial for maintaining structural integrity. This study ... -
Water processed LNMO cathodes
(Master thesis, 2024)Post-treatment of LNMO active material is an effective means of bringing down the pH levels for water- processed LNMO cathode slurries. pH levels between 8.4 ± 0.3 are obtained in this experiment compared to ph levels of ... -
Case Study of Alternatives to Grid Expansion: Reducing Grid Connection Requirements for Large Scale EV Charging Stations through Photovoltaic and Energy Storage Integration
(Master thesis, 2024)The increasing share of electric vehicles requires more charging stations, which in turn de- mands more available grid capacity. In many situations, this necessitates an expansion in the regional and transmission grid, ... -
Case Study of Alternatives to Grid Expansion
(Master thesis, 2024)Den økende andelen av elbiler krever flere ladestasjoner, noe som igjen krever ny ledig net- tkapasitet. I mange sitasjoner krever dette en utbedring i det overliggende nett, som både er dyrt og tidkrevende. Denne oppgaven ... -
Electrolyte effect on performance and lifetime of sodium – ion batteries
(Master thesis, 2024)Sodium-ion batteries (SIBs) are a promising alternative to lithium-ion batteries (LIBs) due to their sodium abundance, lower cost, non-toxicity, and environmental benefits. Intercalation-type anode materials obtained from ... -
Optimization of Rotor Tilts in a Floating Offshore Wind Farm
(Master thesis, 2024)This thesis aims to optimize the total power output of a wind farm with 11 turbines by adjusting individual tilt angles for each turbine, and looking at what scenarios provide optimal tilts. This is done using PyWake to ... -
Håndtering og Integrering av Solenergiens Overskuddsproduksjon i Distribusjonsnettet
(Master thesis, 2024)Denne masteroppgaven undersøker integrasjonen av solenergi i det norske kraftsystemet, med fokus på spenningsstabilitet og belastning i distribusjonsnettet på mellomspenningsnivå. Oppgaven har flere hovedmål: å analysere ...