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Cats, O. (author), Hartl, Maximilian (author)Transit systems are subject to congestion that influences system performance and level of service. The evaluation of measures to relieve congestion requires models that can capture their network effects and passengers' adaptation. In particular, on-board congestion leads to an increase of crowding discomfort and denied boarding and a decrease in...journal article 2016
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- Cats, O. (author), West, Jens (author), Eliasson, Jonas (author) journal article 2016
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Cats, O. (author)Investments in transport are increasingly motivated by the need to improve its robustness — the capacity to absorb disturbances with a minimal impact on system performance. Nonetheless, there is lack of knowledge on how to assess and quantify the robustness value of new investments. This study investigates the robustness of alternative public...journal article 2016
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Abdul Rahman, S.M.B. (author), Borst, C. (author), van Paassen, M.M. (author), Mulder, Max (author)Air traffc controller workload is an important impediment to air transport growth. Several approaches exist that aim to better understand the causes for workload, and models have been derived to predict workload in new operational settings. These methods often relate workload to the diffculty, or complexity, that an average controller would have...journal article 2016
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Heiligers, M.J. (author), Guerrant, D. (author), Lawrence, D (author)A heliogyro is a solar sail concept that divides the solar sail membrane into a number of long, slender blades of film extended from a central hub, maintained in a flat state through spin-induced tension. The heliogyro can redirect and scale the solar radiation pressure (SRP) force and can achieve attitude control by twisting the blades, similar...conference paper 2016
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Ellerbroek, Joost (author), Rodriguez Martin, M.J.M. (author), Lombaerts, T (author), van Paassen, M.M. (author), Mulder, Max (author)This paper describes the design and evaluation of a shared control, haptic feedback system to communicate Flight Envelope Protection System intent. The concept uses a combination of stiffness feedback and vibration to communicate proximity of the aircraft state to flight envelope boundaries. In addition, a stick center shift can be applied by...journal article 2016
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Root, B.C. (author), Novak, P. (author), Dirkx, D. (author), Kaban, M. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)This article reviews a spectral forward gravity field modelling method that was initially designed for topographic/isostatic mass reduction of gravity data. The method transforms 3D spherical density models into gravitational potential fields using a spherical harmonic representation. The binomial series approximation in the approach, which...journal article 2016
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Methenitis, G. (author), Kaisers, Michael (author), la Poutré, J.A. (author)Current electricity tariffs for retail rarely provideincentives for intelligent demand response of flexiblecustomers. Such customers could otherwisecontribute to balancing supply and demand in futuresmart grids. This paper proposes an innovativerisk-sharing tariff to incentivize intelligentcustomer behavior. A two-step parameterized...conference paper 2016
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Loutas, T. (author), Eleftheroglou, N. (author)A prognostic framework is proposed in order to estimate the remaining useful life of composite materials under fatigue loading based on acoustic emission data and a sophisticated Non Homogenous Hidden Semi Markov Model. Bayesian neural networks are also utilized as an alternative machine learning technique for the non-linear regression task. A...conference paper 2016
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Ke, Qian (author), Haasnoot, M. (author), Hoogvliet, Marco (author)Cities are vulnerable to flooding and historical events, for instance Hurricane Sandy in 2012, have showed that losses in the cities are costly. In the context of climate change and socio-economic development, future flood risk will inevitably rise; adaptive measures, for instance upgrading of sea dikes and floodwalls, improving drainage...journal article 2016
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Hong, Z. (author), Abdalla, M.M. (author)Optimisation algorithms used to automatically size structural members commonly involve stress constraints to avoid material failure. Therefore the cost of optimisation grows rapidly as the number of structural members is increased due to the corresponding increase in the number of constraints. In this work, an efficient method for large scale...conference paper 2016
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Terra, W. (author), Sciacchitano, A. (author), Scarano, F. (author)Aerodynamic drag is computed from velocity measurements obtained with particle image velocimetry (PIV). This allows determining the drag force in combination with the visualization of the flow structures responsible for drag generation. Two experiments are conducted to illustrate the working principle of the approach, which is meant for...journal article 2016
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Ubbens, H.H. (author), Dwight, R.P. (author), Sciacchitano, A. (author), Timmer, W.A. (author)Bobsleighs races nowadays are decided upon hundredths of a second. As the margins are that small the aerodynamics of a bobsleigh can play a significant role in a race outcome. This paper investigates the influence of the gap between the nose and the rear cowling of a two-man bobsleigh. The paper especially focusses on the misalignment between...journal article 2016
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Abdolah Zadeh, M. (author), Grande, A.M. (author), van der Zwaag, S. (author), Garcia, Santiago J. (author)In the present work we show the effect of the crosslinking degree on the mechanical and healing behaviour of a healable thermoset dual-network polymer. A hyphenated rheological test (i.e. simultaneous rheology and FTIR) was used to follow the effect of the curing process on the mechanical behaviour in relation to the underlying chemical...journal article 2016
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Bahamonde, Juan S. (author), Pini, M. (author), Colonna, Piero (author)The fluid dynamic preliminary design of unconventional turbomachinery is customary done with meanline design procedures coupled with gradient-free optimizers. This method features various drawbacks, since it might become computationally expensive, and it does not provide design insights or guidelines to the designer. This work proposes a...conference paper 2016
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Vollebregt, S. (author), Alfano, B. (author), Ricciardella, F. (author), Giesbers, A.J.M. (author), Hagendoorn, Y. (author), van Zeijl, H.W. (author), Polichetti, T (author), Sarro, Pasqualina M (author)In this paper we report a novel transfer-free graphene fabrication process, which does not damage the graphene layer. Uniform graphene layers on 4" silicon wafers were deposited by chemical vapor deposition using the CMOS compatible Mo catalyst. Removal of the Mo layer after graphene deposition results in a transfer-free and controlled placement...conference paper 2016
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Vollebregt, S. (author), Ishihara, R. (author)Carbon nanotubes (CNT) have been proposed for many applications in integrated circuits (IC): ranging from transistors and interconnects to sensors and actuators. For these applications it is crucial to integrate CNT directly alongside electronics, something which has not been achieved before. In this work we demonstrate the direct growth of CNT...journal article 2016
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Praus, Friedrich (author), Kastner, Wolfgang (author), Palensky, P. (author)With today’s ongoing integration of heterogeneous building automation systems, increased comfort, energy efficiency, improved building management, sustainability as well as advanced applications such as active & assisted living scenarios become possible. These smart homes and buildings are implemented as decentralized systems, where embedded...journal article 2016
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van der Voordt, Theo (author)Purpose - Because of the transition of the Dutch health care sector from a governmentally steered domain towards regulated market forces, health care organisations have become fully responsible for their real estate. This paper aims to explore if/how Dutch health care organisations adopt the concept of adding value by corporate and public real...journal article 2016
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Knijnenburg, Theo A. (author), Klau, Gunnar W (author), Lorio, Francesco (author), Garnett, Mathew J. (author), McDermott, Ultan (author), Shmulevich, I (author), Wessels, L.F.A. (author)Mining large datasets using machine learning approaches often leads to models that are hard to interpret and not amenable to the generation of hypotheses that can be experimentally tested. We present ‘Logic Optimization for Binary Input to Continuous Output’ (LOBICO), a computational approach that infers small and easily interpretable logic...journal article 2016
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