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Lentner, Mateusz (author)Hydrogen is one of aviation's most promising fuel alternatives in the coming years. However, to store it, a large and light vessel is needed. <br/><br/>The solution to this problem can be the carbon fibre fuel tank. Composite structures provide significant weight savings, which is crucial in this application. However, despite its superior...master thesis 2024
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van Dooren, K.S. (author), Tijs, B.H.A.H. (author), Waleson, J. E.A. (author), Bisagni, C. (author)Two aeronautical thermoplastic composite stiffened panels are analysed and tested to investigate the buckling behaviour, the skin-stringer separation and the final failure mode. The panels are made of fast crystallising polyetherketoneketone carbon composite, have three stringers with an angled cap on one side, and are joined to the skin by a...journal article 2023
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Ganeshpure, D.A. (author), Soeiro, Thiago B. (author), Gagic, Mladen (author), Ghaffarian Niasar, M. (author), Bauer, P. (author), Vaessen, P.T.M. (author)To test high-voltage (HV) equipment with increasingly complex transients obtained from various power system studies, this article demonstrates a hardware implementation of a medium-voltage (MV) submodule (SM) to be used in a modular multilevel converter (MMC)-based HV arbitrary wave shape generator (AWG). The MV SM is scalable with its own...journal article 2023
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Piazzoni, Andrea (author), Cherian, Jim (author), Dauwels, J.H.G. (author), Chau, Lap Pui (author)Even though virtual testing of Autonomous Vehicles (AVs) has been well recognized as essential for safety assessment, AV simulators are still undergoing active development. One particular challenge is the problem of including the Sensing and Perception (S&P) subsystem into the virtual simulation loop in an efficient and effective manner....journal article 2023
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van Dooren, K.S. (author), Bisagni, C. (author)Thermoplastic composite three-stringer panels with omega stiffeners and conduction welded joints are designed, analysed and tested until final failure to investigate the performance of the welded joint in post-buckling. The three-stringer panels are designed to be structurally representative of the fuselage demonstrator of the Clean Sky 2...journal article 2023
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Decouchant, Jérémie (author), Kulahcioglu Ozkan, Burcu (author), Zhou, Yanzhuo (author)Byzantine consensus protocols aim at maintaining safety guarantees under any network synchrony model and at providing liveness in partially or fully synchronous networks. However, several Byzantine consensus protocols have been shown to violate liveness properties under certain scenarios. Existing testing methods for checking the liveness of...conference paper 2023
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Gao, Mingyu (author), Chakraborty, S.S. (author), Kulahcioglu Ozkan, Burcu (author)The Probabilistic Concurrency Testing (PCT) algorithm that provides theoretical guarantees on the probability of detecting concurrency bugs does not apply to weak memory programs. The PCT algorithm builds on the interleaving semantics of sequential consistency, which does not hold for weak memory concurrency. It is because weak memory...conference paper 2023
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ZHANG, ZIWEI (author)Spin-transfer-torque magnetic random access memory (STT-MRAM) is regarded as one of the most promising non-volatile memory (NVM) technologies, which has the potential to replace the traditional memories in the modern memory hierarchy. Due to some advantages such as non-volatility, fast access speed, low leakage power and high density, more and...master thesis 2022
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Patil, Ashutosh (author)With the increasing growth and penetration of power electronic devices in the power system, it is essential to understand the behaviour of insulation materials and systems under the varied signals that are produced with power electronic systems. These signals could be square pulses, sinusoidal or even superimposed. The high-frequency sinusoidal...master thesis 2022
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Roseboom, Bart (author)Cyber-physical systems are complex systems constructed from different independent parts. A self-driving car is an example of a cyber-physical system where independent parts have to come together in order to result in a car that is able to drive by itself. The main challenge is finding failures within the interactions between the independent...master thesis 2022
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Wubben, Rolf (author)After the breakup of the Stratos III vehicle, inertial roll coupling was pinpointed to be the root cause. In order to battle the problem a propulsive roll control system was suggested to keep the roll rate under acceptable bounds. A restartable hybrid rocket engine using nitrous oxide and ABS plastic was proposed. 27 tests have been performed of...master thesis 2022
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Crha, Vojta (author)In the recent years, several papers have implemented methods which seamlessly integrate data streams into high frame rate monitors without affecting casual viewer experience. This paper proposes an improvement to existing systems which can in theory increase the data throughput of the data stream several times. Exploiting the same...bachelor thesis 2022
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Dimitrov, Stoyan (author)To ensure that a software system operates in the correct way, it is crucial to test it extensively. Manual software testing is severely time-consuming, and developers often underestimate its importance. Consequently, many tools for automatic test generation have been developed during the past decade. EvoSuite is a state-of-the-art tool for...bachelor thesis 2022
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Bradarić, Filip (author)Resistive Random-Access Memory (RRAM) is an emerging memory technology that has the possibility to compete with mainstream memory technologies such as Dynamic Random-Access Memory (DRAM) and flash memory. The reason why RRAM has not seen mass adoption yet is due to its defect-prone nature. The resistance of RRAM can assume any value within its...master thesis 2022
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Szabo, Botond (author), Vuursteen, L. (author), Van Zanten, Harry (author)In this paper we study the problem of signal detection in Gaussian noise in a distributed setting where the local machines in the star topology can communicate a single bit of information. We derive a lower bound on the Euclidian norm that the signal needs to have in order to be detectable. Moreover, we exhibit optimal distributed testing...journal article 2022
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Liu, Zhou (author), Mirhosseini, S.S. (author), Liu, L. (author), Popov, M. (author), Ma, Kaiqi (author), Hu, Weihao (author), Jamali, Sadegh (author), Palensky, P. (author), Chen, Zhe (author)To promote the integration of renewable energy resources into modern energy systems, high-voltage dc (HVdc) and circuit breaker (CB) technologies have become critical to achieving secure and efficient energy transmission. This article reviews the technical development of the related areas, compares diverse breaker concepts and topologies,...journal article 2022
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Wang, Y. (author), Yu, Rongjie (author), Qiu, Shuhan (author), SUN, J. (author), Farah, H. (author)Highly automated vehicles (HAVs) have been introduced to the transportation system for the purpose of providing safer mobility. Considering the expected long co-existence period of HAVs and human-driven vehicles (HDVs), the safety operation of HAVs interacting with HDVs needs to be verified. To achieve this, HAVs' Operational Design Domain ...journal article 2022
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Copetti, T.S. (author), Nilovic, M. (author), Fieback, M. (author), Gemmeke, T. (author), Hamdioui, S. (author), Bolzani Poehls, L.M. (author)Memristive devices have become promising candidates to complement and/or replace the CMOS technology, due to their CMOS manufacturing process compatibility, zero standby power consumption, high scalability, as well as their capability to implement high-density memories and new computing paradigms. Despite these advantages, memristive devices are...conference paper 2022
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Marijan, Dusica (author), Lal, C. (author)As blockchain technology is gaining popularity in industry and society, solutions for Verification and Validation (V&V) of blockchain-based software applications (BC-Apps) have started gaining equal attention. To ensure that BC-Apps are properly developed before deployment, it is paramount to apply systematic V&V to verify their...review 2022
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Asprone, Domenico (author), Menna, Costantino (author), Bos, Freek (author), Mata-Falcón, Jaime (author), Ferrara, Liberato (author), Auricchio, Ferdinando (author), Cadoni, Ezio (author), Cunha, Vítor M. C. F. (author), Esposito, Laura (author), Fromm, Asko (author), Grunewald, S. (author), Kloft, Harald (author), Mechtcherine, Viktor (author), Nerella, Venkatesh Naidu (author), Schipper, H.R. (author)The form freedom enabled by digital fabrication with concrete technologies provides advantages for a wide range of concrete based objects, from architectural to structural elements. The current chapter focuses on the specifics of structural design and engineering of DFC with emphasis on those technologies based on Additive Manufacturing with...book chapter 2022