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Fu, W. (author), van Paassen, M.M. (author), Mulder, Max (author)
Limitations of a haptic device can cause distortions of the force feedback it presents. Just-noticeable difference (JND) in system dynamics is important for creating transparent haptic interaction. Based on the previous work, this article presents a unified model that extends the existing JND rule. Our approach projects the JNDs in the...
journal article 2020
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Van Riessen, Bart (author), Mulder, Judith (author), Negenborn, R.R. (author), Dekker, Rommert (author)
The cargo fare class mix (CFCM) problem aims to find the optimal fare class mix for a given intermodal transportation network based on known client demands. It is based on a revenue management problem for aviation passengers, the fare class mix problem, but considering intermodal cargo transportation, two major differences apply. Firstly, the...
journal article 2020
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Arush, I. (author), Pavel, M.D. (author), Mulder, Max (author)
The process of empirical models evaluation is at the core business of experimental flight-testing data analysis. Accurate and convenient flight-testing of helicopter engine(s) available power is crucial for predicting the total helicopter performance. Common practice in estimation of in-flight helicopter gas turbine engine power consists of a...
journal article 2020
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Hein, C.M. (author), Van de Laar, Paul (author), Jansen, Maurice (author), Luning, Sabine (author), Brandellero, Amanda (author), Azman, Lucija (author), Hinman, Sarah (author), Mulder, I.J. (author), Harteveld, M.G.A.D. (author)
Port cities are a particular type of territory and are often long-standing examples of resilience, bringing opportunities, wealth, and innovation to their nations and their citizens. They have developed at the crossroads of international trade and commerce and the intersection of sea and land. Flows of people through trade and migration have...
report 2020
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van der El, K. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)
The 1960s crossover model is widely applied to quantitatively predict a human controller's (HC's) manual control behavior. Unfortunately, the theory captures only compensatory tracking behavior and, as such, a limited range of real-world manual control tasks. This article finalizes recent advances in manual control theory toward more general...
journal article 2020
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Landman, H.M. (author), Groen, Eric L. (author), van Paassen, M.M. (author), Bronkhorst, Adelbert W. (author), Mulder, Max (author)
Previous studies show that pilots sometimes make roll reversal errors (RREs) when responding to the aircraft bank angle shown on the attitude indicator (AI). This is suggestive of a perceptual ambiguity in the AI. In the current study, we investigated whether expectation contributes to such misperception. Twenty nonpilots performed tasks in a...
journal article 2020
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Stevens, L.L. (author), Kopnina, Helen (author), Mulder, K.F. (author), de Vries, M.J. (author)
Preliminary empirical research conducted by the leading author has shown that design students using biological analogies, or models across different contexts, often misinterpreted these, intentionally or unintentionally, during design. By copying shape or form without integrating the main function of the mimicked biological model, students...
journal article 2020
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Mulder, J.T. (author), Kirkwood, N.R.M. (author), De Trizio, Luca (author), Li, C. (author), Bals, Sara (author), Manna, L. (author), Houtepen, A.J. (author)
Indium phosphide quantum dots (QDs) have drawn attention as alternatives to cadmium- and lead-based QDs that are currently used as phosphors in lamps and displays. The main drawbacks of InP QDs are, in general, a lower photoluminescence quantum yield (PLQY), a decreased color purity, and poor chemical stability. In this research, we attempted...
journal article 2020
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Kirkwood, Nicholas (author), De Backer, Annick (author), Longo, Alessandro (author), Geuchies, J.J. (author), Mulder, J.T. (author), Renaud, Nicolas (author), Bals, Sara (author), Manna, L. (author), Houtepen, A.J. (author)
Zinc is routinely employed in the synthesis of InP quantum dots (QDs) to improve the photoluminescence efficiency and carrier mobility of the resulting In(Zn)P alloy nanostructures. The exact location of Zn in the final structures and the mechanism by which it enhances the optoelectronic properties of the QDs are debated. We use synchrotron X...
journal article 2020
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Tsuda, Hiroka (author), Stroosma, O. (author), Mulder, Max (author)
A method to automatically identify pilot actions from cockpit camera footage is reported in this paper. Although they have long been considered for the enhancement of flight safety, cockpit image recorders have not yet been standard equipment in aircraft cockpits. The rules on Flight Data Recorders have been changed, however, to include a...
conference paper 2020
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van Geel, Alexander (author), Borst, C. (author), van Paassen, M.M. (author), Mulder, Max (author)
Loss of control is the largest contributor to the yearly aviation death toll, with energy mismanagement in low-energy conditions as one of its main causal factors. This has led to a large emphasis from both scientific and aviation safety communities on the prevention of aircraft upset conditions. Changes in aircraft configuration largely impact...
conference paper 2020
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Scholten, Pepijn (author), van Paassen, M.M. (author), Mulder, Max (author)
A variable stability in-flight simulator has the capabilities to change the response of an aircraft in-flight, often without changing the physical properties of the aircraft. The ability to adjust the aircraft response characteristics and handling qualities has various purposes, such as pilot training, control logic development and handling...
conference paper 2020
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da Silva Rosa, David (author), Ernst, Johanne (author), Borst, C. (author), van Paassen, M.M. (author), Mulder, Max (author)
Helicopter pilot performance in degraded visual conditions may be improved through sensor fusion and an augmented reality display. A simulator experiment with 12 participants was done to test the effect of synthetic terrain grid cell size and helicopter heave dynamics on task performance and control behaviour in a terrain-following hill-climb...
conference paper 2020
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Friesen, D. (author), Pavel, M.D. (author), Borst, C. (author), Stroosma, O. (author), Masarati, Pierangelo (author), Mulder, Max (author)
This paper aims to reveal the effect of different display design principles in the helicopter domain. Two different obstacle avoidance support displays are evaluated during low-altitude, forward helicopter flight: a baseline Head-Up Display (HUD) is complemented either by a conventional advisory display, or a constraint-based display inspired by...
conference paper 2020
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Piessens, Tom (author), van Paassen, M.M. (author), Mulder, Max (author)
Teleoperation by definition means a deprivation of the teleoperator's senses, which can pose a handicap when operating, e.g., an UAV, in an unknown, perhaps even dynamic environment. Noticing moving obstacles in such a situation can prove to be quite difficult and the UAV runs the risk of colliding with them. Previous work designed a shared...
conference paper 2020
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Mulder, W.A. (author)
Simulations of wave propagation in the Earth usually require truncation of a larger domain to the region of interest to keep computational cost acceptable. This introduces artificial boundaries that should not generate reflected waves. Most existing boundary conditions are not able to completely suppress all the reflected energy, but suffice...
journal article 2020
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Kemna, Maarten (author), Pool, D.M. (author), Wentink, Mark (author), Mulder, Max (author)
Numerous critical manual teleoperation tasks, such the control of the refueling boom during aerial refueling, require human controllers to accurately manipulate objects in the depth dimension, i.e., aligned with the viewing direction. To better understand the intricacies of depth control tasks and to be able to better support human controllers...
conference paper 2020
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de Rooij, G. (author), van Baelen, D. (author), Borst, C. (author), van Paassen, M.M. (author), Mulder, Max (author)
This paper describes the design and evaluation of a visual display in supplementing haptic feedback on the side stick as a way to communicate flight envelope boundaries to pilots. The design adds indications for the limits in airspeed, load factor, angle of attack and angle of bank to a standard Airbus primary flight display (PFD). The...
conference paper 2020
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van Baelen, D. (author), Ellerbroek, J. (author), van Paassen, M.M. (author), Mulder, Max (author)
Several modern aircraft use a passive control manipulator: a spring–damper system that generates command signals to the flight control computers in combination with a flight envelope protection system that limits pilot inputs when approaching the aircraft limits. This research project aims to increase pilot awareness of this protection system...
journal article 2020
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Landman, H.M. (author), van Middelaar, Sophie H. (author), Groen, Eric L. (author), van Paassen, M.M. (author), Bronkhorst, Adelbert W. (author), Mulder, Max (author)
Background: Mnemonic-type startle and surprise procedures were previously proposed to help pilots cope with startle and surprise in-flight, but effects on performance after procedure execution have not yet been investigated. Objective: Thus, we tested the effectiveness a new mnemonic-type procedure in a moving-base simulator with a non-linear...
journal article 2020
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