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Schneider, Mike (author), Couzinié, Jean Philippe (author), Shalabi, Amin (author), Ibrahimkhel, Farhad (author), Ferrari, A. (author), Körmann, F.H.W. (author), Laplanche, Guillaume (author)This work aims to predict the microstructure of recrystallized medium and high-entropy alloys (MEAs and HEAs) with a face-centered cubic structure, in particular the density of annealing twins and their thickness. Eight MEAs and five HEAs from the Cr-Mn-Fe-Co-Ni system are considered, which have been cast, homogenized, cold-worked and...journal article 2024
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Kievits, A.J. (author), Duinkerken, B. H.Peter (author), Fermie, Job (author), Lane, R. (author), Giepmans, Ben N.G. (author), Hoogenboom, J.P. (author)Recent advances in electron microscopy techniques have led to a significant scale up in volumetric imaging of biological tissue. The throughput of electron microscopes, however, remains a limiting factor for the volume that can be imaged in high resolution within reasonable time. Faster detection methods will improve throughput. Here, we have...journal article 2024
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Zuidema, W. (author)In this thesis, the design and engineering considerations for a multi-beam scanning electron microscope (MBSEM) are discussed. This microscope can benefit biological research in various ways. It can give new insights into the inner workings of a multitude of biological systems that were hard to get using previously existing instrumentation. For...doctoral thesis 2023
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Venkata Shanmukha Sreeramagiri, Souri (author)Energy dissipation plays a crucial role in mitigating noise and vibration in a wide range of applications. In the field of assistive devices, energy dissipation is used to improve the stability of joint motion and protect the musculoskeletal system from excessive loads. It is not surprising that considerable effort has gone into developing...master thesis 2023
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Amoozandeh, A. (author)Industrial passive exoskeletons have been developed for years as a tool to reduce the physical workload of their users. They accomplish this by compensating for the user’s body weight and decreasing fatigue caused by repetitive loads. Despite their advantages, current exoskeletons have drawbacks that make them less convenient for users and thus...doctoral thesis 2023
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Horstman, Bart (author)This study introduces a new design for the drivetrain of a robotic ball. An application for the robotic ball is a rehabilitation device for young children. With these children, movement can be stimulated in a more intuitive way when a robotic ball is used compared to other training programs. Since the ball will be kicked and played with, an...master thesis 2023
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van Ammers, Jeroen (author)Submodules are the building blocks for MMC-type HVDC converters and therefore of utmost importance for converter reliability. In order to unlock smarter maintenance strategies for submodule semiconductors, the technical condition of the semiconductors needs to be estimated to form a health index. Besides the non-project-specific traditional...master thesis 2023
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Kamat Tarcar, Rohan (author)Integrating renewable offshore wind generation into global power grids is a critical issue in the energy industry. Modular Multilevel Converter (MMC)-based High Voltage Direct Current (HVDC) grids are the most effective and promising technical solution for the new offshore wind energy power system connections. These grids offer scalability,...master thesis 2023
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Vonk, Renzo (author)The COVID-19 pandemic has highlighted the importance of indoor air quality in preventing the spread of airborne transmissive diseases. Offices are some of the largest hotspots for disease transmission. To address this issue, a joint venture between FLEX/design and Euromate, called ‘X-Lair,’ aims to design an air purifier specifically targeting...master thesis 2023
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Speth, Florine (author)Coral reefs are considered to be a crucial ecosystem and form of natural coastal protection. They owe their effectiveness to their high structural complexity. This complexity, which positively influences aspects like species richness, coral recovery, live coral cover, and coastal protection, is often quantified using parameters such as porosity...master thesis 2023
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Kranenburg, Kas (author)<br/>Following the climate goals of the Dutch government, a tremendous amount of vRES (variable Renewable Energy Sources) will be built. These energy sources will produce large amounts of power, which must travel great distances on the transmission grid. The Dutch TSO, TenneT, is responsible for the transmission grid's design, construction, and...master thesis 2023
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ter Meulen, Daan (author)Two-bladed offshore wind turbines regained interest in finding the most profitable way of generating wind energy. Wind industry companies demand the safe operation of two-bladed offshore wind turbines. To guarantee safe operation, the companies perform operational modal analyses to investigate modal properties variation which might be allocated...master thesis 2023
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Yang, Zhe (author), Liu, Zhou (author), Zhang, Qi (author), Chen, Zhe (author), de Jesus Chavez, Jose (author), Popov, M. (author)The traditional fault control strategy of converter-interfaced renewable energy sources (CIRESs) may bring about a lower sensitivity level or misoperation of fault component-based directional elements. To overcome this problem, a new control scheme is proposed to adjust sequence impedance angles of CIRESs by computing suitable current...journal article 2023
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Amoozandeh, A. (author), Herder, J.L. (author), Radaelli, G. (author)Continuously Variable Transmissions (CVT) can serve as subsystems for a variety of machineries and robotic systems. A compliant CVT mechanism based on the warping of twisting beams is presented here. The design works based on the demonstrated fact that the twist on one side of a beam can be transferred via sectional warping and propagate...journal article 2023
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Lindeman, Pim (author), Steijlen, A.S.M. (author), Bastemeijer, J. (author), Bossche, A. (author)One of the major challenges associated with e-textiles is the connection between flexible fabric-integrated wires and rigid electronics. This work aims to increase the user experience and mechanical reliability of these connections by foregoing conventional galvanic connections in favor of inductively coupled coils. The new design allows for...journal article 2023
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Nutter, John (author), Qi, Jiahui (author), Farahani, H. (author), Rainforth, W. Mark (author), van der Zwaag, S. (author)The current study reports in situ TEM observations of the growth of bainitic ferrite in an Fe-0.3C-3Mn-1.5Si-0.15Mo steel held isothermally at 300 °C with a higher spatio-temporal resolution than in previous studies. Significant variations were found in the lengthening rate, with the highest being in excess of 30,000 nm.s<sup>−1</sup> while...journal article 2023
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Wang, Te (author), Li, Zongkun (author), Ge, W. (author), zhang, Z.H. (author), Zhang, Yadong (author), Sun, Heqiang (author), Jiao, Yutie (author)Compared with a single reservoir, the risk in cascade reservoirs has the transmission and superposition effect, which increases the complexity of its risk consequence assessment. In view of this problem, the direct consequence (DC) and potential consequence (PC) were defined as two parts of the dam breach risk consequence of cascade reservoirs....journal article 2023
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Valiya Valappil, S. (author), Krushynska, Anastasiia O. (author), Aragon, A.M. (author)The band-gap frequencies of elastic metamaterials are ideally determined by a metamaterial architecture; yet, in practical situations, are often dependent on the material damping in their constituent(s). The analysis of viscoelastic metamaterials requires however substantial computational resources and, except for oversimplified cases, is...journal article 2023
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Garnacho, Fernando (author), Álvarez, Fernando (author), Elg, Alf Peter (author), Mier Escurra, C. (author), Lahti, Kari (author), Khamlichi, Abderrahim (author), Arcones, Eduardo (author), Klüss, Joni (author), Mor, A. R. (author)On-site partial discharge (PD) measurements have turned out to be a very efficient technique for determining the insulation condition in high-voltage electrical grids (AIS, cable systems, GIS, HVDC converters, etc.); however, there is not any standardised procedure for determining the performances of PD measuring systems. In on-line and on...journal article 2023
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Valiya Valappil, S. (author), Goosen, J.F.L. (author), Aragon, A.M. (author)Ultrasonic flowmeters that use transit-time ultrasonic transducers face measurement errors due to 'crosstalk,' whereby the working signal travels through the pipe wall and couplings, interfering with the signal from the fluid. Although various procedures have been proposed to solve the issue of crosstalk, they're limited to low-frequency...journal article 2023