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Hu, Y. (author), Leus, G.J.T. (author)

Estimation problems in the presence of deterministic linear nuisance parameters arise in a variety of fields. To cope with those, three common methods are widely considered: (1) jointly estimating the parameters of interest and the nuisance parameters; (2) projecting out the nuisance parameters; (3) selecting a reference and then taking...

journal article 2017
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Gallos, Lazaros K. (author), Korczynski, M.T. (author), Fefferman, Nina H. (author)

Early detection of traffic anomalies in networks increases the probability of effective intervention/mitigation actions, thereby improving the stability of system function. Centralized methods of anomaly detection are subject to inherent constraints: (1) they create a communication burden on the system, (2) they impose a delay in detection...

journal article 2017
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Morales Napoles, O. (author), Paprotny, D. (author), Worm, D (author), Abspoel, 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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Jäger, 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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Ma, Y. (author), Markine, V.L. (author), Mashal, AA (author), Ren, M (author)
Verification of the explicit finite element (FE) model with realistic wheel-rail profiles against the CONTACT model, which has not been sufficiently discussed, is performed by comparing the resulting shear stress, slip-adhesion area, etc., obtained from the two models. The follow-up studies using the verified FE model on the influence of the...
journal article 2017
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Post, W. (author), Kersemans, M. (author), Solodov, I. (author), Van Den Abeele, K. (author), Garcia Espallargas, Santiago J. (author), van der Zwaag, S. (author)

A comparative study is performed on the monitoring of delamination healing in CFRP-ionomer sandwich composites by non-destructive techniques and destructive compression testing. Artificial delaminations of various areal dimensions and nature were introduced during production of the composites. The extent of the delamination and the healing...

journal article 2017
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Multifunctional flood defenses protect areas against flooding, but
serve other functions as well. Although these types of defenses
can be seen almost everywhere, they pose special technical and
governance challenges.

This book is about a unique interdisciplinary research program
developed to tackle some of the issues...
book 2017
document
Rahman, M.M. (author)
The principle of Subsurface Arsenic (As) Removal (SAR) is to extract anoxic groundwater, aerate it and reinject it. Oxygen in the injected water reacts with iron in the resident groundwater to form hydrous ferric oxide (HFO). Dissolved As sorbs onto the HFO, which allows for the extraction of groundwater with lower As concentrations.
doctoral thesis 2017
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Jamshidi, A. (author), Nunez Vicencio, Alfredo (author), Dollevoet, R.P.B.J. (author), Li, Z. (author)

This paper presents a condition-based treatment methodology for a type of rail surface defect called squat. The proposed methodology is based on a set of robust and predictive fuzzy key performance indicators. A fuzzy Takagi-Sugeno interval model is used to predict squat evolution for different scenarios over a time horizon. Models including...

journal article 2017
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Zhang, S. (author), Igartua, A. (author), Rodriguez-Vidal, E. (author), van der Heide, E. (author)

Surface texture is important for contact mechanical and tribological phenomena such as the contact area and friction. In this research, three different types of geometrical microstructures were designed and fabricated by pulsed laser surface texturing as semi-symmetric (grooved channel), asymmetric fractal (Hilbert curve), and symmetric...

journal article 2017
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Zhang, Y. (author), van Zuijlen, A.H. (author), van Bussel, G.J.W. (author)

This paper aims to provide an explanation for the overprediction of aerodynamic loads by CFD compared to experiments for the MEXICO wind turbine rotor and improve the CFD prediction by considering laminar-turbulent transition modeling. Large deviations between CFD results and experimental measurements are observed in terms of sectional normal...

journal article 2017
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Lopatin, Craig (author), Rabinovich, Daniel (author), Givoli, D. (author), Turkel, Eli (author)

A model-based non destructive testing (NDT) method is proposed for damage identification in elastic structures, incorporating computational time reversal (TR) analysis. Identification is performed by advancing elastic wave signals, measured at discrete sensor locations, backward in time. In contrast to a previous study, which was purely...

journal article 2017
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Lantsoght, E.O.L. (author), van der Veen, C. (author), de Boer, A (author)

The loads that are used for the assessment of existing reinforced concrete slab bridges are the self-weight, superimposed loads, and distributed and concentrated live loads. As such, the shear capacity of reinforced concrete slabs under a combination of distributed and concentrated live loads is a topic of practical relevance. For slabs...

journal article 2017
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Barcelos Carneiro M Rocha, I.B.C.M. (author), Raijmaekers, S (author), Nijssen, RPL (author), van der Meer, F.P. (author), Sluijs, Lambertus J. (author)

In this work, a glass/epoxy material system applied in wind turbine blades was used to evaluate degradation processes induced by water ingression. Composite and neat epoxy specimens were conditioned in demineralised water at 50 °C for 4800 h and tested quasi-statically and in fatigue. Comparing results from mechanical tests in composite...

journal article 2017
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Klaver, T.P.C. (author), Zhang, S. (author), Nordlund, K. (author)

We present results of MD simulations of low energy He ion bombardment of low density fuzz in bcc elements. He ions can penetrate several micrometers into sparse fuzz, which allows for a sufficient He flux through it to grow the fuzz further. He kinetic energy falls off exponentially with penetration depth. A BCA code was used to carry out the...

journal article 2017
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Bliemer, Michiel C.J. (author), Rose, John M. (author), Chorus, C.G. (author)

Stated choice surveys have been used for several decades to estimate preferences of agents using choice models, and are widely applied in the transportation domain. Different types of experimental designs that underlie such surveys have been used in practice. In unlabelled experiments, where all alternatives are described by the same generic...

journal article 2017
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Lopes dos Santos, Bruno F. (author), Wormer, M.M.E.C. (author), Achola, T.A.O. (author), Curran, R. (author)

This paper deals with the Airline Delay Management Problem (ADMP), which can be described as the task of dealing with daily airline operational delays and deciding whether to delay subsequent flights at a hub airport or to have them departing on time. An innovative integer linear programming approach is presented to the capacitated case of...

journal article 2017
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Janssen, Annette B.G. (author), de Jager, Victor C.L. (author), Janse, Jan H. (author), Kong, Xiangzhen (author), Liu, S. (author), Ye, Q. (author), Mooij, Wolf M. (author)

Ongoing eutrophication frequently causes toxic phytoplankton blooms. This induces huge worldwide challenges for drinking water quality, food security and public health. Of crucial importance in avoiding and reducing blooms is to determine the maximum nutrient load ecosystems can absorb, while remaining in a good ecological state. These so...

journal article 2017
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Bose, R.K. (author), Enke, Marcel (author), Grande, A.M. (author), Zechel, Stefan (author), Schacher, Felix H. (author), Hager, Martin D. (author), Garcia Espallargas, Santiago J. (author), Schubert, Ulrich S. (author), van der Zwaag, S. (author)

The main aim of this work is to study the respective contribution of the hard and soft blocks of a metal-ligand containing block copolymer to the self-healing behavior. To this aim, different block copolymers containing terpyridine were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization. These block...

journal article 2017
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Wang, Q. (author), Goosen, J.F.L. (author), van Keulen, A. (author)

Spanwise twist can dominate the deformation of flapping wings and alters the aerodynamic performance and power efficiency of flapping wings by changing the local angle of attack. Traditional Fluid–Structure Interaction (FSI) models, based on Computational Structural Dynamics (CSD) and Computational Fluid Dynamics (CFD), have been used to...

journal article 2017
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