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Wapenaar, C.P.A. (author), Brackenhoff, J.A. (author), Thorbecke, J.W. (author), van der Neut, J.R. (author), Slob, E.C. (author), Verschuur, D.J. (author)

A virtual acoustic source inside a medium can be created by emitting a time-reversed point-source response from the enclosing boundary into the medium. However, in many practical situations the medium can be accessed from one side only. In those cases the time-reversal approach is not exact. Here, we demonstrate the experimental design and...

journal article 2018
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Li, Mengmeng (author), Mangalore, Deepthi Kamath (author), Zhao, Jingbo (author), Carpenter, Joshua H. (author), Yan, Hongping (author), Ade, Harald (author), Müllen, Klaus (author), Blom, Paul W.M. (author), Pisula, Wojciech (author), de Leeuw, D.M. (author), Asadi, Kamal (author), Yan, He (author)

It is still a great challenge to fabricate conjugated polymer monolayer field-effect transistors (PoM-FETs) due to intricate crystallization and film formation of conjugated polymers. Here we demonstrate PoM-FETs based on a single monolayer of a conjugated polymer. The resulting PoM-FETs are highly reproducible and exhibit charge carrier...

journal article 2018
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Rocha, Paulo R.F. (author), Silva, Alexandra D. (author), Godinho, Lia (author), Dane, Willem (author), Estrela, Pedro (author), Vandamme, Lode K.J. (author), Pereira-Leal, Jose B. (author), de Leeuw, D.M. (author), Leite, Ricardo B. (author)

Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demonstrate that a population of diatoms under...

journal article 2018
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Furrer, Fabian (author), Gehring, Tobias (author), Schaffner, Christian (author), Pacher, Christoph (author), Schnabel, Roman (author), Wehner, S.D.C. (author)

Cryptographic protocols are the backbone of our information society. This includes two-party protocols which offer protection against distrustful players. Such protocols can be built from a basic primitive called oblivious transfer. We present and experimentally demonstrate here a quantum protocol for oblivious transfer for optical continuous...

journal article 2018
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Pfister, C. (author), Rol, M.A. (author), Mantri, Atul (author), Tomamichel, Marco (author), Wehner, S.D.C. (author)

The central figure of merit for quantum memories and quantum communication devices is their capacity to store and transmit quantum information. Here, we present a protocol that estimates a lower bound on a channel's quantum capacity, even when there are arbitrarily correlated errors. One application of these protocols is to test the...

journal article 2018
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Baldi, S. (author), Xiang, Weiming (author)

In this work we address the problem of (outer) estimation of reachable sets in switched linear systems subject to dwell-time switching. After giving some conditions that exploit the well-known properties of exponential decrease/bounded increase of the Lyapunov function (i.e. exponential decrease in between switching times and bounded increase...

journal article 2018
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Wolbertus, R. (author), Kroesen, M. (author), van den Hoed, Robert (author), Chorus, C.G. (author)

Policy makers are looking for effective ways to promote the adoption of electric vehicles (EVs). Among the options is the roll-out and management of charging infrastructure to meet the EV drivers’ refuelling needs. However, policies in this area do not only have a long-term effect on the adoption of EVs among prospective owners, they also...

journal article 2018
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Gong, J. (author), Rossen, W.R. (author)

If the aperture distribution is broad enough in a naturally fractured reservoir, even one where the fracture network is highly inter-connected, most fractures can be eliminated without significantly affecting the flow through the fracture network. During a waterflood or enhanced-oil-recovery (EOR) process, the production of oil depends on the...

journal article 2018
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Khait, M. (author), Voskov, D.V. (author)

Numerical simulation is one of the most important tools required for financial and operational management of geothermal reservoirs. The modern geothermal industry is challenged to run large ensembles of numerical models for uncertainty analysis, causing simulation performance to become a critical issue. Geothermal reservoir modeling requires...

journal article 2018
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Seidel, Marc (author), Hendrikse, H. (author)

In this paper, an analytical method is presented to assess FLI (Frequency lock-in) of monopile support structures for offshore wind turbines, subjected to loading by floating sea ice. The method is introduced, justified and presented with an example. The main idea of the method is to use existing knowledge regarding structural response...

journal article 2018
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Sodja, J. (author), De Breuker, R. (author), Nozak, Dejan (author), Drazumeric, Radovan (author), Marzocca, Pier (author)

Low-fidelity fluid–structure interaction model of flexible propeller blades is assessed by means of comparison with high-fidelity aeroelastic results. The low-fidelity model is based on a coupled extended blade-element momentum model and non-linear beam theory which were both implemented in Matlab. High-fidelity fluid–structure interaction...

journal article 2018
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Zou, D. (author), Bisagni, C. (author)

An experimental and numerical investigation was conducted to study the skin-stiffener separation of single T-shape stiffener specimens in postbuckling condition. Three specimens were manufactured with a centrally located Teflon insert, and were loaded in compression until collapse. Deformation patterns and separation evolution were monitored...

journal article 2018
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Tene, M. (author), Stuparu, Dana E. (author), Kurowicka, D. (author), El Serafy, G.Y.H. (author)

This paper describes a novel sensitivity analysis method, able to handle dependency relationships between model parameters. The starting point is the popular Morris (1991) algorithm, which was initially devised under the assumption of parameter independence. This important limitation is tackled by allowing the user to incorporate dependency...

journal article 2018
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Marcoen, Kristof (author), Visser, P (author), Trindade, G. F. (author), Abel, M. L. (author), Watts, J. F. (author), Mol, J.M.C. (author), Terryn, H.A. (author), Hauffman, T. (author)

Organic primer coatings loaded with environmentally harmful Cr(VI) corrosion inhibitive pigments still play an important role in corrosion protection of aluminium alloys for the aerospace industry. A potential “green” alternative coating system has recently been developed, loaded with lithium salt corrosion inhibitors. Under exposure to...

journal article 2018
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Sobhani, Anvar (author), Saeedifar, M. (author), Ahmadi Najafabadi, Mehdi (author), Fotouhi, Mohamad (author), Zarouchas, D. (author)

This study introduces a comprehensive set of designed and tested glass/epoxy composites, AE monitoring and signal processing techniques; (i) to investigate the effect of multiple delaminations on buckling and post-buckling behaviors of laminated composites and (ii) to evaluate Acoustic Emission (AE) technique ability to monitor the buckling...

journal article 2018
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Sacchetti, Francisco (author), Grouve, Wouter J B (author), Warnet, Laurent L. (author), Fernandez Villegas, I. (author)

It is a common practice in fusion bonding of thermoplastic composites to add a matrix layer between the two substrates to be joined. The aim is to ensure proper wetting of the two parts. The effect of this additional matrix layer on the mechanical performance was studied by mode I fracture toughness measurements. The additional matrix was...

journal article 2018
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Fernandez Villegas, I. (author), van Moorleghem, Regis (author)

This paper investigates welding of carbon/epoxy and carbon/PEEK composites using the following procedure. Firstly, the carbon/epoxy composite was made “weldable” through a very thin PEI thermoplastic film co-cured on its surface. During the curing cycle, the PEI resin and the components of the epoxy resin system partially diffused into each...

journal article 2018
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Hartmann, J. (author), van der Aa, Monique (author), Wuijts, Susanne (author), de Roda Husman, Ana Maria (author), van der Hoek, J.P. (author)

The presence of emerging contaminants in the aquatic environment may affect human health via exposure to drinking water. And, even if some of these emerging contaminants are not a threat to human health, their presence might still influence the public perception of drinking water quality. Over the last decades, much research has been done on...

journal article 2018
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Zhao, T. (author), Broek, C.A. (author), Palardy, G. (author), Fernandez Villegas, I. (author), Benedictus, R. (author)

The research in this paper is an essential part of a bigger effort on developing robust sequential ultrasonic welding of multi-spot welded joints in thermoplastic composites. It mainly focused on assessing the impact of the changes in boundary conditions on the welding process and whether it could be circumvented by using an appropriate...

journal article 2018
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Heide-Jørgensen, Simon (author), Teixeira De Freitas, S. (author), Budzik, Michal K. (author)

This paper addresses the fracture behaviour of bonded composite plates featuring a kissing bond along the crack growth path. Double cantilever beam (DCB) experiments are carried out under a displacement controlled loading condition to acquire the load response. The experimental data are collected and analysed analytically for specimens with...

journal article 2018
Collection: research
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