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Landman, H.M. (author), Davies, Simon (author), Groen, Eric L. (author), van Paassen, M.M. (author), Lawson, Nicholas (author), Bronkhorst, Adelbert W. (author), Mulder, Max (author)We hypothesized that an incorrect expectation due to spatial disorientation may induce roll reversal errors. To test this, an in-flight experiment was performed, in which forty non-pilots rolled wings level after receiving motion cues. A No-leans condition (subthreshold motion to a bank angle) was included, as well as a Leans-opposite condition ...journal article 2019
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Fu, W. (author), van Paassen, M.M. (author), Mulder, Max (author)Most haptic interfaces developed for aircraft control provide haptic support as an additional force on the control manipulator. This study revisits the active manipulator, which is a design concept that is different from but complementary to existing haptic interfaces. This control device sends the force that the pilot exerts on it to the...journal article 2019
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Analyzing Aircraft Controllability After Engine Failure During Takeoff in Adverse Weather ConditionsKoolstra, H.J. (author), Huijbrechts, Erik-Jan (author), Mulder, J.A. (author)When an aircraft experiences an engine failure during takeoff, it must be able to either reject or continue the takeoff without exceeding the longitudinal or lateral dimensions of the usable runway. This paper focuses on the lateral deviation. During certification, the minimum control speed ground is determined in certification tests; at this...journal article 2019
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Xu, Y. (author), Borsa, Dana M. (author), Mulder, F.M. (author)In our efforts to address the issues of Si based anodes for Li ion batteries, such as limited active mass loading, rapid capacity degradation and low scalability in manufacturing, we reported a scalable, high mass loading, and additive-free Si nanoparticles (NP) deposition based electrode, but the achieved capacity and cycle life were still...journal article 2019
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Harks, P.P.R.M.L. (author), Verhallen, T.W. (author), George, C. (author), van den Biesen, Jan Karel (author), Liu, Q. (author), Wagemaker, M. (author), Mulder, F.M. (author)The commercial uptake of lithium-sulfur (Li-S) batteries is undermined by their rapid performance decay and short cycle life. These problems originate from the dissolution of lithium polysulfide in liquid electrolytes, causing charge and active material to shuttle between electrodes. The dynamics of intractable polysulfide migration at...journal article 2019
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de Koning, J.I.J.C. (author), Puerari, E. (author), Mulder, I. (author), Loorbach, Derk (author)Today, citizens, professionals, civil servants, social enterprises, and others form different types of coalitions to overcome the challenges facing our modern cities. In this paper, the particularities of these types of groups are characterised and categorised into ten different types of city makers. Generally, these types of city makers bring...journal article 2019
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Harks, P.P.R.M.L. (author), Robledo, C.B. (author), George, C. (author), Wang, C. (author), van Dijk, Thomas (author), Sturkenboom, Leon (author), Roesink, Erik D.W. (author), Mulder, F.M. (author)Enabling the transition to renewable power sources requires further optimization of batteries in terms of energy/power density and cost-effectiveness. Increasing the practical thickness of Li ion battery electrodes not only can improve energy density on cell level but reduces manufacturing cost. However, thick electrodes exhibit sluggish...journal article 2019
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Klein Koerkamp, N.W. (author), Borst, C. (author), Mulder, Max (author), van Paassen, M.M. (author)Real-time optimization of Vehicle Routing Problems (VRP) during mission operations raises concerns regarding obtaining a solution within a reasonable timeframe, especially in domains where operations cannot easily be paused and the number of control parameters is high. Humans, however, are heuristic problem solvers and could potentially...journal article 2019
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Borst, C. (author), Somers, V.L.J. (author), Mulder, Max (author)Air Traffic Control (ATC) workload is a limiting factor for air traffic growth, creating a need for objective ATC workload metrics. Previous research has shown that the solution space diagram can be a basis for a workload prediction metric. The current solution space metric however, does not incorporate altitude. In this paper, a 3D solution...journal article 2019
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Rojer, Jim (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)This paper describes a novel method for time-varying identification of Human Controller (HC) manual control parameters (called UKF-FPV), based on a steady-state (constant state covariance) Unscented Kalman Filter (UKF). This approach requires no a priori assumptions on the shape of HC parameter variations, which is a potential advantage over...journal article 2019
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Mulder, Max (author), Pool, D.M. (author), van der El, Kasper (author), Drop, F.M. (author), van Paassen, M.M. (author)Mathematical control models are widely used in tuning manual control systems and understanding human performance. The most common model, the crossover model, is severely limited, however, in describing realistic human control behaviour in relevant control tasks as it is only valid for tracking with a compensatory display. This paper first...journal article 2019
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Plaetinck, Wouter (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)Time-varying pilot control identification is essential for better understanding of how pilots respond when faced with sudden changes in the dynamics of the vehicle they control, such as when automatic control and stabilization systems disengage or undergo a mode transition. This paper presents the results of a human-in-the-loop experiment...journal article 2019
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Kolff, M.J.C. (author), van der El, Kasper (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)The understanding of human responses to visual information in car driving tasks requires the use of system identification tools that put constraints on the design of data collection experiments. Most importantly, multisine perturbation signals are required, including a multisine road geometry, to separately identify the different driver...journal article 2019
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Willems, M. (author), Pool, D.M. (author), van der El, Kasper (author), Damveld, H.J. (author), van Paassen, M.M. (author), Mulder, Max (author)Human modelling approaches are typically limited to feedback-only, compensatory tracking tasks. Advances in system identification techniques allow us to consider more realistic tasks that involve feedforward and even precognitive control. In this paper we study the human development of a feedforward control response while learning to...journal article 2019
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Fu, W. (author), van Paassen, M.M. (author), Abbink, D.A. (author), Mulder, Max (author)Time delays in haptic teleoperation affect the ability of human operators to assess mechanical properties (damping, mass, and stiffness) of the remote environment. To address this, we propose a unified framework for human haptic perception of the mechanical properties of environments with delayed force feedback. In a first experiment, we...journal article 2019
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van der El, Kasper (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)Novel driver support systems potentially enhance road safety by cooperating with the human driver. To optimize the design of emerging steering support systems, a profound understanding of driver steering behavior is required. This article proposes a new theory of driver steering, which unifies visual perception and control models. The theory...journal article 2019
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Blanken, Micha (author), Verweij, Cees (author), Mulder, K.F. (author)Innovations are required in urban infrastructures due to the pressing needs for mitigating climate change and prevent resource depletion. In order to address the slow pace of innovation in urban systems, this paper analyses factors involved in attempts to introduce novel sanitary systems. Today new requirements are important: sanitary systems...journal article 2019
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Barendswaard, S. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)Vehicle control tasks require simultaneous control of multiple degrees-of-freedom. Most multi-axis human-control modeling is limited to the modeling of multiple fully independent single axes. This paper contributes to the understanding of multi-axis control behavior and draws a more realistic and complete picture of dual-axis manual control....journal article 2019
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Gârlea, Ioana C. (author), Dammone, Oliver (author), Alvarado, José (author), Notenboom, Valerie (author), Jia, Yunfei (author), Koenderink, G.H. (author), Aarts, Dirk G.A.L. (author), Lettinga, M. Paul (author), Mulder, Bela M. (author)When a liquid crystal forming particles are confined to a spatial volume with dimensions comparable to that of their own size, they face a complex trade-off between their global tendency to align and the local constraints imposed by the boundary conditions. This interplay may lead to a non-trivial orientational patterns that strongly depend...journal article 2019
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Fang, J. (author), Mulder, Yvo T.B. (author), Hidders, Jan (author), Lee, Jinho (author), Hofstee, H.P. (author)While FPGAs have seen prior use in database systems, in recent years interest in using FPGA to accelerate databases has declined in both industry and academia for the following three reasons. First, specifically for in-memory databases, FPGAs integrated with conventional I/O provide insufficient bandwidth, limiting performance. Second, GPUs,...journal article 2019