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Fotis, Konstantinos (author)The Landing Platform Dock vessel is mainly designed to support amphibious operations in which landing operations play an important role. For operating landing craft the vessel has a well dock at the stern, designed to station several landing craft. Landing operations are restricted by the motions of the Landing Platform Dock vessel and by the...master thesis 2024
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Duval-Arnould, Aude (author), Bulot, Luc (author), Masrour, Moussa (author), Simmons, Mike (author), Bonnot, Alain (author), Charton, R.J.G. (author), Redfern, Jonathan (author), Schröder, Stefan (author)A major global marine transgression occurred during the Callovian to Early Kimmeridgian, which was interrupted locally by a hiatus during the Late Callovian to Early Oxfordian. The transgression may have been a major driver for extensive coral buildup development in the Oxfordian. The depositional hiatus may be related to a combination of...journal article 2024
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Guo, Jiayi (author)With the steadily increasing road traffic demand, congestion on freeways has become a major problem. With the development of communication technology and automated vehicles, there are more opportunities for DTMs to be studied extensively at the coordination level and cooperation level. In the existing literature, the coordination of RM (ramp...master thesis 2023
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Malamaki, Kyriaki-Nefeli D. (author), Fu, A. (author), Mauricio, Juan Manuel (author), Cvetkovic, M. (author), Demoulias, Charis S. (author)As the penetration of Converter-Interfaced Dis-tributed Renewable Energy Sources (CI-DRES) increases, several problems are revealed in electric power systems, e.g., power quality issues, reverse power flows and frequency instability. A solution to tackle these issues is the mitigation of high CI-DRES active power ramp-rates (RRs) by utilizing...conference paper 2023
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Cheneka, B.R. (author), Watson, S.J. (author), Basu, S. (author)Only a few studies on the overall impact of climate change on offshore wind power production and wind power ramps in the North Sea region have been published. This study focuses on the characteristics of expected wind power production and wind power ramps in the future climate aided by the classification of circulations patterns using a self...journal article 2023
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Gkavanoudis, Spyros I. (author), Malamaki, Kyriaki Nefeli D. (author), Kontis, Eleftherios O. (author), Demoulias, Charis S. (author), Shekhar, A. (author), Mushtaq, U. (author), Venu, Sagar Bandi (author)The variability of the output power of distributed renewable energy sources (DRESs) that originate from the fast-changing climatic conditions can negatively affect the grid stability. Therefore, grid operators have incorporated ramp-rate limitations (RRLs) for the injected DRES power in the grid codes. As the DRES penetration levels increase,...journal article 2023
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Chen, N. (author), van Arem, B. (author), Wang, M. (author)Connected Automated Vehicles (CAVs) have the potential to improve traffic operations when they cooperatively maneuver in merging sections. State-of-the-art approaches in cooperative merging either build on heuristics solutions or prohibit mainline CAVs to change lane on multilane highways. This paper proposes a hierarchical cooperative...journal article 2022
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Todorović, Uglješa (author), Frejo, José Ramón D. (author), De Schutter, B.H.K. (author)The Model Predictive Control (MPC) framework has shown great potential for the control of Variable Speed Limits (VSLs) and Ramp Metering (RM) installations. However, the implementation to large freeway networks remains challenging. One major reason is that, by considering the VSLs to be discrete decision variables, an extremely difficult Mixed...journal article 2022
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Chen, N. (author)The aim of the thesis is to design coordination strategies for connected automated vehicles near on-ramps considering controller performance, safe lane changing conditions, maneuver planning, and trajectory control. CAVs have enhanced situation awareness with their onboard detection units and vehicle-to-everything communications. They have the...doctoral thesis 2021
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Ranka, Preeti (author)With the growing offshore wind industry, ramp events, i.e., significant variation in wind speed (or power) within a short time period, have become of critical importance to the end-users. The analysis of wind power ramp events from the perspective of grid operators or energy traders is prevalent in the literature. Nonetheless, this area of...master thesis 2021
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Thota, Rohit (author)Renewable energy sources have become a cost-competitive and green option for supplying power to the grid in recent years. Nonetheless, their variable nature poses a problem to the regular operation of the electrical grid by introducing severe fluctuations of large magnitudes and/or short-duration known as ramps. There is a lack of research in...master thesis 2021
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Associating Synoptic-Scale Weather Patterns with Aggregated Offshore Wind Power Production and RampsCheneka, B.R. (author), Watson, S.J. (author), Basu, S. (author)Large-scale weather patterns and their variability can influence both the amount of wind power production and its temporal variation, i.e., wind power ramps. In this study, we use a self-organizing map to cluster hourly sea level pressure into a discrete number of weather patterns. The dependency of wind power production and wind power ramps on...journal article 2021
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Mc Carthy, Robert (author)Of the many challenges involved in developing reliable and sustainable spaceflight, perhaps none are so dangerous and difficult to study as the aerothermodynamic conditions involved when re-entering the atmosphere. These dangerous conditions typically occur due to a variety of flow phenomena, one of which is shock—boundary-layer interactions ...master thesis 2020
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Khalid, Omer (author)Traffic congestion on highways is a multi-sectoral phenomenon affecting society, the economy and the environment. It often takes place at specific locations such as on and off-ramps, weaving segments and intersections. The on-ramp merging procedure is considered as one of the main factors that causes traffic congestion on highways. The studies...master thesis 2020
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Cheneka, B.R. (author), Watson, S.J. (author), Basu, S. (author)Large-scale weather systems have the potential to modulate offshore wind energy production. The Northern European sea areas have recently seen a rapid increase in wind power capacity and thus there is a need to understand how different weather systems affect offshore production from the perspective of energy system integration. In this study,...journal article 2020
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Blom, Youri (author), Bradarić, Filip (author)The "FM Chirp Waveform Generator and Detector for Radar" is a Bachelor graduation project with an educational purpose. In this thesis, two modules of the whole system are designed and simulated. In particular, the sawtooth generator and the FM detector. The sawtooth generator is used to generate a linearly increasing signal, which can be used to...bachelor thesis 2020
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Klomp, Stefan (author)In order to reduce congestion numbers on the highways, ramp metering can be used. The currently existing ramp metering control strategies are of a macroscopic nature. This means that the average occupancy on the main lane or average flow values on the main lane determine the temporarily fixed cycle times for the traffic light located near the on...master thesis 2020
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van Hooft, J.A. (author)The scalar front generated by the horizontal self advection of a dipolar vortex through a mod-est scalar gradient is investigated. This physical scenario is an idealization of the emergenceof strong temperature ramps in the stable atmospheric boundary layer. The proposed mecha-nism is discussed and a two-dimensional analogy is studied in depth...journal article 2020
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Chen, N. (author), van Arem, B. (author), Alkim, Tom (author), Wang, M. (author)Gap selection and dynamic speed profiles of interacting vehicles at on-ramps affect the safety and efficiency of highway merging sections. This paper puts forward a hierarchical control approach for Connected Automated Vehicles (CAVs) to achieve efficient and safe merging operations. A tactical layer controller employs a second-order car...journal article 2020
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Zhou, Moyu (author)Automated vehicles are conventional vehicles equipped with advanced sensors, controller and actuators. They achieve intelligent information exchange with the environment through the onboard sensing and cooperative system. vehicles are possible to have situation awareness and automatically analyze the safety and dangerous state of journeys....master thesis 2019