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Liu, C. (author), Malladi, S.R.K. (author), Xu, Q. (author), Chen, Jianghua (author), Tichelaar, F.D. (author), Zhuge, Xiaodong (author), Zandbergen, H.W. (author)Age-hardening in Al alloys has been used for over a century to improve its mechanical properties. However, the lack of direct observation limits our understanding of the dynamic nature of the evolution of nanoprecipitates during age-hardening. Using in-situ (scanning) transmission electron microscopy (S/TEM) while heating an Al-Cu alloy, we...journal article 2017
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- Fendel, E.M. (author), Dubbeling, D.J. (author) journal article 2017
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Perçin, M. (author), Vanierschot, M. (author), van Oudheusden, B.W. (author)In this paper, we investigate the flow structures and pressure fields of a free annular swirling jet flow undergoing vortex breakdown. The flow field is analyzed by means of time-resolved tomographic particle image velocimetry measurements, which enable the reconstruction of the three-dimensional time-resolved pressure fields using the...journal article 2017
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Ngene, Peter (author), Longo, Alessandro (author), Mooij, L.P.A. (author), Bras, Wim (author), Dam, B. (author)Hydrogen is a key element in the energy transition. Hydrogen-metal systems have been studied for various energy-related applications, e.g., for their use in reversible hydrogen storage, catalysis, hydrogen sensing, and rechargeable batteries. These applications depend strongly on the thermodynamics of the metal-hydrogen system. Therefore,...journal article 2017
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Morales Napoles, O. (author), Paprotny, D. (author), Worm, D (author), Abspoel-Bukman, L (author), Courage, W (author)In this paper two methodologies are investigated that contribute to better assessment of risks related to extreme rainfall events. Firstly, one-parameter bivariate copulas are used to analyze rain gauge data in the Netherlands. Out of three models considered, the Gumbel copula, which indicates upper tail dependence, represents the data most...journal article 2017
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Jaeger, W.S. (author), Morales Napoles, O. (author)Stochastic descriptions and simulations of oceanographic variables are essential for coastal and marine engineering applications. In the past decade, copula-based approaches have become increasingly popular for estimating the multivariate distribution of some variables at the peak of a storm along with its duration. The modeling of the storm...journal article 2017
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Rezaeiha, Abdolrahim (author), Balbino dos Santos Pereira, R. (author), Kotsonis, M. (author)Unsteady loads are a major limiting factor for further upscaling of HAWTs considering the high costs associated to strict structural requirements. Alleviation of these unsteady loads on HAWT blades, e.g. using active flow control (AFC), is of high importance. In order to devise effective AFC methods, the unsteady loading sources need to be...journal article 2017
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Grande, A.M. (author), Martin, R.P. (author), Odriozola, I (author), van der Zwaag, S. (author), Garcia, Santiago J. (author)The macroscopic interfacial healing behaviour in a series of urea-urethane networks as function of the hydrogen bonds and disulphides content is presented. The polymers were prepared with different crosslinking densities but with the same amount of dynamic covalent bonds (disulphide linkages). Tensile and fracture measurements were adopted to...journal article 2017
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Tzanetis, Konstantinos F. (author), Posada Duque, J.A. (author), Ramirez, Andrea (author)This paper shows a detailed analysis of a biomass HTL process by considering changes in three main reaction variables (i.e. catalysts (water, Na<sub>2</sub>CO<sub>3</sub>(aq.), and Fe(aq.)), temperature (280–340 °C), and catalysts/biomass mass ratio (0–0.33 kg catalysts/kg biomass)), and by assessing their influence on the techno-economic and...journal article 2017
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Kahrobaei, S.S. (author), Vincent-Bonnieu, S.Y.F. (author), Farajzadeh, R. (author)Foam can be used for gas mobility control in different subsurface applications. The success of foam-injection process depends on foam-generation and propagation rate inside the porous medium. In some cases, foam properties depend on the history of the flow or concentration of the surfactant, i.e., the hysteresis effect. Foam may show...journal article 2017
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Landman, H.M. (author), Groen, Eric L. (author), van Paassen, M.M. (author), Bronkhorst, Adelbert W. (author), Mulder, Max (author)Objective: A conceptual model is proposed in order to explain pilot performance in surprising and startling situations. Background: Today’s debate around loss of control following in-flight events and the implementation of upset prevention and recovery training has highlighted the importance of pilots’ ability to deal with unexpected events....journal article 2017
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Sun, X. (author), Olivos Suarez, A.I. (author), Meijerink, Mark (author), Van Deelen, Tom (author), Ould-Chikh, Samy (author), Zečević, Jovana (author), de Jong, K.M. (author), Kapteijn, F. (author), Gascon, Jorge (author)The development of synthetic protocols for the preparation of highly loaded metal nanoparticle-supported catalysts has received a great deal of attention over the last few decades. Independently controlling metal loading, nanoparticle size, distribution, and accessibility has proven challenging because of the clear interdependence between...journal article 2017
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Wiegmans, B. (author), Witte, Patrick (author)Although terminal efficiency has been thoroughly studied for deep-sea container ports and terminals, up till now, there has been little scientific literature on the efficiency of inland waterway container terminals (IWTs). This paper therefore focuses on determining and analyzing terminal characteristics that influence efficiency. Our...journal article 2017
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Su, Zhaoen (author), Tacla, Alexandre B. (author), Hocevar, Moïra (author), Car, Diana (author), Plissard, Sébastien R. (author), Bakkers, E.P.A.M. (author), Daley, Andrew J. (author), Pekker, David (author), Frolov, Sergey M. (author)Chains of quantum dots coupled to superconductors are promising for the realization of the Kitaev model of a topological superconductor. While individual superconducting quantum dots have been explored, control of longer chains requires understanding of interdot coupling. Here, double quantum dots are defined by gate voltages in indium...journal article 2017
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Zhang, Shizhe (author), Keulen, Arno (author), Arbi Ghanmi, K. (author), Ye, G. (author)The feasibility of a waste glass powder residue (GP) from glass recycling as partial mineral precursor to produce alkali-activated materials is investigated. GP served as powder coal fly ash (PCFA) replacement within a reference system composed of 50% PCFA and 50% ground granulated blast furnace slag (GGBS). Compared with PCFA, GP was better...journal article 2017
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Lahabi, K. (author), Amundsen, Morten (author), Ouassou, Jabir Ali (author), Beukers, Ewout (author), Pleijster, Menno (author), Linder, Jacob (author), Alkemade, P.F.A. (author), Aarts, Jan (author)Spin-triplet Cooper pairs induced in ferromagnets form the centrepiece of the emerging field of superconducting spintronics. Usually the focus is on the spin-polarization of the triplets, potentially enabling low-dissipation magnetization switching. However, the magnetic texture which provides the fundamental mechanism for generating triplets...journal article 2017
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Abbasi, A. (author), Annor, F.O. (author), van de Giesen, N.C. (author)In this study, a framework for simulating the flow field and heat transfer processes in small shallow inland water bodies has been developed. As the dynamics and thermal structure of these water bodies are crucial in studying the quality of stored water , and in assessing the heat fluxes from their surfaces as well, the heat transfer and...journal article 2017
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Roshanbin, A. (author), Altartouri, H. (author), Karasek, M. (author), Preumont, André (author)This paper describes the results of a six-year project aiming at designing and constructing a flapping twin-wing robot of the size of hummingbird (Colibri in French) capable of hovering. Our prototype has a total mass of 22 g, a wing span of 21 cm and a flapping frequency of 22 Hz; it is actively stabilized in pitch and roll by changing the...journal article 2017
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Esteban, Miguel (author), Glasbergen, Toni (author), Takabatake, Tomoyuki (author), Hofland, Bas (author), Nishizaki, Shinsaku (author), Nishida, Yuta (author), Stolle, Jacob (author), Nistor, Ioan (author), Bricker, J.D. (author), Takagi, Hiroshi (author), Shibayama, Tomoya (author)Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward...journal article 2017
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Yu, C. (author), Ganapathy, S. (author), van Eck, Ernst R H (author), Wang, H.. (author), Basak, S. (author), Li, Z. (author), Wagemaker, M. (author)Solid-state batteries potentially offer increased lithium-ion battery energy density and safety as required for large-scale production of electrical vehicles. One of the key challenges toward high-performance solid-state batteries is the large impedance posed by the electrode-electrolyte interface. However, direct assessment of the lithium...journal article 2017