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Deng, Q. (author), Lopes Dos Santos, B.F. (author), Curran, R. (author)
This paper presents a practical dynamic programming based methodology to optimize the long-term maintenance check schedule for a fleet of heterogeneous aircraft. It is the first time that the long-term aircraft maintenance check schedule is optimized, integrating different check types in a single schedule solution. The proposed methodology...
journal article 2020
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Allebrandi, Sander (author), Lampaert, S.G.E. (author), van Ostayen, R.A.J. (author)
Magnetic fluids have been around since the 1940's. They come in dierent forms: Magnetorheological fluids (MR fluids) and Ferrofluids. MR fluids characterise themselves by having a large change in viscosity under the influence of a magnetic field. Ferrofluids have a significantly smaller change in viscosity however ferrfluids are colloidal...
journal article 2020
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Schifferstein, H.N.J. (author)
Affluent societies face several challenges involving the relationships between people and their food, including the rise of welfare diseases and the huge amount of food wasted. These problems are partly due to the operation of the market economy, in which companies develop products that cater to momentary desires of individual consumers. To...
journal article 2020
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Calvert, S.C. (author), van Arem, B. (author)
With an increasing number of automated vehicles (AV) appearing on roads and interacting with conventional traffic, there is a need for improved simulation approaches to replicate and forecast the resulting effects. Interactions between AVs and their drivers, and interaction with other human drivers involve new types of complex behavioural...
journal article 2020
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Molina-Castillo, Francisco Jose (author), Lopez-Nicolas, Carolina (author), de Reuver, G.A. (author)
This study analyzes how learning costs for technologies that lack de facto standards, such as mobile payment, affect user intentions. In addition, we evaluate how the negative effect of learning costs is mediated by perceived functional value and facilitating conditions. Data used in this research was obtained from a study among 463 consumers....
journal article 2020
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Samaniego, Christian Cuba (author), Giordano, G. (author), Franco, Elisa (author)
An important challenge in synthetic biology is the construction of periodic circuits with tunable and predictable period. We propose a general architecture, based on the use of recombinase proteins and negative feedback, to build a molecular device for periodic switching between two distinct regimes; the switching rule depends on known...
journal article 2020
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Blanchini, Franco (author), Chesi, Graziano (author), Colaneri, Patrizio (author), Giordano, G. (author)
In this letter we show how the problem of assessing structural local stability of BDC-decomposable systems, left open in recent literature, can be solved via convex optimisation. First we give a simple test, based on a sufficient condition, that requires checking the strict co-positivity of a multivariate polynomial. Then we provide a...
journal article 2020
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Sinha, Kautuk (author), Singh, Niels K. (author), Abdalla, Mostafa M. (author), De Breuker, R. (author), Alijani, F. (author)
The article proposes a method developed for model order reduction in a Finite Element (FE) framework that is capable of computing higher order stiffness tensors. In the method, a truncated third order asymptotic expansion is used for transformation of an FE model to a reduced system. The basis matrix in the formulation of the reduced-order...
journal article 2020
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Bluijssen, P.M. (author), Kim, D.H. (author), Eijkelenboom, A.M. (author), Ortiz Sanchez, M.A. (author)
To identify current problems in the classroom and to conceptualize design solutions by primary school children to solve these problems, 335 children from seven primary schools participated in a workshop held in the Experience room of the SenseLab, comprising of two parts. In part 1, the children were asked to think about their own classroom...
journal article 2020
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Riemersma, B. (author), Correlje, A.F. (author), Kunneke, R.W. (author)
This paper identifies safety concerns that arise from ongoing technical and institutional changes in the Dutch gas sector. The Netherlands has a well-developed gas infrastructure that primarily transports natural gas, although its constituting features are undergoing major changes. We identify three historical developments, and show how (1)...
journal article 2020
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Boersma, Q.D. (author), Douma, L.A.N.R. (author), Bertotti, G. (author), Barnhoorn, A. (author)
In layered materials, the deformation style, orientation, confinement, and 3D connectivity of natural fractures is generally impacted by changes in sedimentary facies and alternations in mechanical properties. In this study we address this effect and perform a numerical sensitivity analysis. Mechanical properties, confining pressures, and...
journal article 2020
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Cats, O. (author), Vermeulen, A.A.J. (author), Warnier, M.E. (author), van Lint, J.W.C. (author)
The development of metropolitan public transport networks often involves choosing between investing in extending radial lines or constructing ring connections. While the former enlarges network coverage the latter enhances network connectivity and reduces the need to perform detours. Moreover, investments might be better directed at...
journal article 2020
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Abrishami, S. (author), Khakzad, N. (author), Hosseini, Seyed Mahmoud (author), van Gelder, P.H.A.J.M. (author)
Success Likelihood Index Model (SLIM) is one of the widely-used deterministic techniques in human reliability assessment especially when data is insufficient. However, this method suffers from epistemic uncertainty as it extremely relies on expert judgment for determining the model parameters such as the rates and weights of the performance...
journal article 2020
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Molin, E.J.E. (author), Adjenughwure, Kingsley (author), de Bruyn, Menno (author), Cats, O. (author), Warffemius, Pim (author)
Many studies about conducting activities while traveling start from the hypothesis that conducting onboard activities reduces the value of time (VoT). However, surprisingly limited empirical evidence is provided for this hypothesis. The few studies that aim at providing this evidence face methodological problems in the sense that effects...
journal article 2020
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Cavadas, Joana (author), Azevedo, Carlos Lima (author), Farah, H. (author), Ferreira, Ana (author)
Observed accidents have been the main resource for road safety analysis over the past decades. Although such reliance seems quite straightforward, the rare nature of these events has made safety difficult to assess, especially for new and innovative traffic treatments. Surrogate measures of safety have allowed to step away from traditional...
journal article 2020
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Fu, J. (author), Brouwer, J.C. (author), Hendrikx, R.W.A. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)
The present work deals with oxide dispersion strengthened (ODS) Eurofer steel fabricated by powder metallurgy involving mechanical alloying and spark plasma sintering. A heat treatment route including normalising and tempering was applied to the as-produced steel, based on differential scanning calorimetry (DSC) measurement. The...
journal article 2020
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Lambelho, Miguel (author), Mitici, M.A. (author), Pickup, Simon (author), Marsden, Alan (author)
To mitigate air traffic demand-capacity imbalances, large European airports implement strategic flight schedules, where flights are assigned arrival/departure slots several months prior to execution. We propose a generic assessment of such strategic schedules using predictions about arrival/departure flight delays and cancellations. We...
journal article 2020
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van Westering, W.H.P. (author), Hellendoorn, J. (author)
By installing a battery storage system in the power grid, Distribution Network Operators (DNOs) can solve congestion problems caused by decentralized renewable generation. This paper provides the necessary theory to use such a community battery for grid congestion reduction, backed up by experimental results. A simple network model was...
journal article 2020
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Yazdan Mehr, M. (author), Bahrami, A. (author), van Driel, W.D. (author), Fan, X.J. (author), Davis, J.L. (author), Zhang, G.Q. (author)
In this paper, degradation mechanisms of optical materials, used in the light emitting diode (LED)-based products, are reviewed. The LED lighting is one of the fastest technology shifts in human history. Lighting accounts for almost 20% of the global electrical energy use, inferring that replacement of traditional lighting sources with LEDs...
journal article 2020
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Schrijvers, P.J.C. (author), Jonker, H.J.J. (author), de Roode, S.R. (author), Kenjeres, S. (author)
This study investigated the surface temperature, air temperature and mean radiant temperature inside an idealized 2D street geometry during daytime. The goal was to unravel the relative impact of radiative transfer, heat conduction and ventilation to the urban heat budget. A building-resolving simulation model has been used, which represents...
journal article 2020
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