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Geevers, S. (author), Mulder, W.A. (author), van der Vegt, J.J.W. (author)
Spectral elements with mass lumping allow for explicit time stepping and are therefore attractive for modelling seismic wave propagation. Their formulation on rectangular elements is straighforward, but for tetrahedra only elements up to degree 3 are known. To preserve accuracy after mass lumping, these elements require additional nodes that...
conference paper 2018
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Mulder, I.J. (author)
Mundane cities are challenged to design for unpredictable and rapidly changing futures. In the current work, we refer to thesechallenges as a collaborative design challenge and explore how co-creative partnerships can enable a participatory turn by establishinga new social infrastructure. The corresponding citizen-centred design approach offers...
journal article 2018
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Fu, W. (author), van Paassen, M.M. (author), Mulder, M. (author)
Wave-variable transformation is a means to maintain stability of haptic teleoperation in the presence of communication time delays. Its drawback is that it affects haptic perception of remote properties and thereby degrades transparency. This paper studies the effect of wave-variable transformation on human haptic perception. Based on a...
conference paper 2018
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Slingerland, G. (author), Mulder, I.J. (author), Jaskiewicz, T.J. (author)
In Rotterdam, the participatory turn has spurred various bottom-up communities around public parks. These communities aim to take care of the parks in their neighbourhood and search for ways to demonstrate the societal value of their initiative. The current work explores how digital matchmaking services can strengthen community relationships. A...
conference paper 2018
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Beeftink, Derek G. (author), Borst, C. (author), Van Baelen, D. (author), van Paassen, M.M. (author), Mulder, M. (author)
Perspective flight-path displays are a viable alternative for the aircraft primary flight display, but increases the pilot head-down time. A haptic interface is developed to counter this effect and increase the task-sharing performance during approach. An experiment (n=12) was conducted to test the effects of the haptic design on primary task...
conference paper 2018
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Fu, W. (author), van Paassen, M.M. (author), Mulder, M. (author)
Abstract—Just notable difference (JND) thresholds for the perception of manipulator dynamic properties are relevant for tele-operation and simulation of vehicles. Manipulator dynamic properties are characterized by multiple variables (describing mass, spring and damping for a linear manipulator) and the JND threshold for any of these variables...
conference paper 2018
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Kun, P. (author), Mulder, I.J. (author), Kortuem, G.W. (author)
The current work elaborates upon a Generative Data Exploration method, which is a design technique aiming at supporting designers in integrating data in their design activities. Digital data offers new opportunities in all sort of professional domains, yet existing approaches and tools to manipulate data are predominantly targeted at data...
conference paper 2018
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Landman, H.M. (author), Groen, Eric L. (author), van Paassen, M.M. (author), Bronkhorst, Adelbert W. (author), Mulder, M. (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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Landman, H.M. (author), Groen, Eric L. (author), van Paassen, M.M. (author), Bronkhorst, A (author), Mulder, M. (author)
Objective: The aim of this study was to test if performance of airline pilots, in performing an aerodynamic stall recovery procedure, decreases when they are surprised, compared to when they anticipate a stall event.
Background: New flight-safety regulations for commercial aviation recommend the introduction of surprise and startle in upset...
journal article 2017
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Ponomarenko, A. V. (author), Kashtan, B. M. (author), Troyan, V. N. (author), Mulder, W.A. (author)
Surface waves are often used to estimate a near-surface shear-velocity profile. The inverse problem is solved for the locally one-dimensional problem of a set of homogeneous horizontal elastic layers. The result is a set of shear velocities, one for each layer. To obtain a P-wave velocity profile, the P-guided waves should be included in the...
journal article 2017
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Peng, B. (author), Xu, Y. (author), Liu, Kai (author), Wang, Xiaoqun (author), Mulder, F.M. (author)
Black phosphorus (BP) has received increasing research attention as an anode material in sodium-ion batteries (SIBs), owing to its high capacity, electronic conductivity, and chemical stability. However, it is still challenging for BP-based SIB anodes to achieve a high electrochemical performance utilizing cost-effective materials and...
journal article 2017
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Peng, B. (author), Xu, Y. (author), Wang, Xiaoqun (author), Shi, Xinghua (author), Mulder, F.M. (author)
Super P carbon black (SPCB) has been widely used as a conducting additive in Li/Na ion batteries to improve the electronic conductivity. However, there has not yet been a comprehensive study on its structure and electrochemical properties for Li/Na ion uptake, though it is important to characterize its contribution in any study of active...
journal article 2017
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Mulder, W.A. (author)
The presence of topography poses a challenge for seismic modeling with finite-difference codes. The representation of topography by means of an air layer or vacuum often leads to a substantial loss of numerical accuracy. A suitable modification of the finite-difference weights near the free surface can decrease that error. An existing...
journal article 2017
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Mulder, F.M. (author), Weninger, B. (author), Middelkoop, J. (author), Ooms, F.G.B. (author), Schreuders, H. (author)
Grid scale electricity storage on daily and seasonal time scales is required to accommodate increasing amounts of renewable electricity from wind and solar power. We have developed for the first time an integrated battery-electrolyser ('battolyser') that efficiently stores electricity as a nickel-iron battery and can split water into hydrogen...
journal article 2017
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Miletovic, I. (author), Pool, D.M. (author), Stroosma, O. (author), Pavel, M.D. (author), Wentink, M (author), Mulder, M. (author)
The fidelity of a rotorcraft flight simulator is influenced by many factors, such as the vehicle dynamic model and the motion cueing algorithm (MCA). To quantify the fidelity of a simulator objectively requires detailed knowledge of human pilot perception and control behaviour that is not yet available. As a consequence, subjective...
conference paper 2017
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Drop, F.M. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (author), Bülthoff, Heinrich H. (author)
Realistic manual control tasks typically involve predictable target signals and random disturbances. The human controller (HC) is hypothesized to use a feedforward control strategy for target-following, in addition to feedback control for disturbance-rejection. Little is known about human feedforward control, partly because common system...
journal article 2017
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Borst, C. (author), Bijsterbosch, V.A. (author), van Paassen, M.M. (author), Mulder, M. (author)
Future air traffic control will have to rely on more advanced automation to support human controllers in their job of safely handling increased traffic volumes. A prerequisite for the success of such automation is that the data driving it are reliable. Current technology, however, still warrants human supervision in coping with (data)...
journal article 2017
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Mulder, W.A. (author), Huiskes, M.J. (author)
One approach to incorporate topography in seismic finite-difference codes is a local modification of the difference operators near the free surface. An earlier paper described an approach for modelling irregular boundaries in a constant-density acoustic finite-difference code, based on the second-order formulation of the wave equation that only...
journal article 2017
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Shamasundar, R. (author), Mulder, W.A. (author)
For seismic modelling, imaging and inversion, finite-difference methods are still the workhorse of the industry despite their inability to meet the increasing demand for improved accuracy in subsurface imaging. Finiteelement methods offer better accuracy but at a higher computational cost. A stress-velocity formulation with linear elements and...
conference paper 2017
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Armanini, S.F. (author), Karasek, M. (author), de Visser, C.C. (author), de Croon, G.C.H.E. (author), Mulder, M. (author)

conference paper 2017
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