Henk van Dijk- PhD
- Vice President at Netherlands Aerospace Centre
Henk van Dijk
- PhD
- Vice President at Netherlands Aerospace Centre
About
20
Publications
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Introduction
Henk van Dijk currently works at the Royal Netherlands Aerospace Centre NLR. He is Vice President of the Aerospace Operations division and chairman of the NLR Science Society.
Current institution
Publications
Publications (20)
Fatigue is an important factor in aviation accidents and incidents. Since fatigue cannot always be prevented, it needs to be detected in real time so that countermeasures can be taken. This study researches whether vocal changes (in vocal intensity and fundamental frequency) can be used as a measure for fatigue in an operational aviation setting. S...
INTRODUCTION: We examined aircrew fatigue during the following flight duty periods (FDPs) mentioned in the European Union (EU) Flight Time Limitations (FTLs): night FDPs longer than 10 h and FDPs typical of disruptive schedules (early starts, late finishes, and nights). An alternative way of classifying night FDPs was also examined to reveal possib...
Background: Fatigue data collections today are often cumbersome, expensive and result in relatively small data sets kept 'tight to the chest' by the collecting organisations/entities. There is a shortage of data for effectively moving knowledge and fatigue risk modelling forward within aviation-for example regarding long-term effects to pilots oper...
The project SINUE (Satellites enabling the Integration in Non-segregated airspace of UAS in Europe), investigated to fly an UAS as IFR traffic within national borders in controlled, non-segregated airspace by communication link via satellites. A real-time man-in-the-loop simulation environment has been set-up, where real air traffic controllers, a...
The session will cover the challenges that ATM faces in the near future regarding the integration of Remotely Piloted Aircraft into non-segregated civil airspace. AT-One offers stakeholders support in validating system concepts by means of simulation.
ATM goal for near future: a stepwise integration of Remotely Piloted Aircraft into civil airspace...
This article discusses the potential for eye movements as a means to assess situation awareness (SA) in a flight simulator setting. In a scenario, SA was hampered by introducing a system malfunction in the form of a fuel leak that resulted in a fuel imbalance. Twelve airline pilots participated in the experiment. An eye tracker was used to track th...
A flight simulator experiment was set up to study relevant human factors tools for situation awareness assessment of pilots. A specific scenario was designed in which a malfunction of the aircraft was introduced during flight: an indicated air speed discrepancy. Pilot behavior was studied while pilots tried to figure out the correct speed. Eye move...
Anecdotal reports and a few scientific publications suggest that flyovers of helicopters at low altitude may elicit fear- or anxiety-related behavioral reactions in grazing feral and farm animals. We investigated the behavioral and physiological stress reactions of five individually housed dairy goats to different acoustic and visual stimuli from h...
Within the HILAS project two experiments in high fidelity flight simulators were performed. In the current paper results from
one of those experiments are discussed. Focus of that discussion is on the added value of using a set of HF tools rather than
individual tools and on a number of lessons that were identified from this experiment. The set of...
Virtual reality technology is an emerging technology that possibly can address the problems encountered in training (elderly) people to handle a mobility device. The objective of this review was to study different virtual reality training applications as well as their clinical implication for patients with mobility problems. Computerized literature...
This study addressed the interaction between age and the informational content of feedback on learning an isometric force-production task. Healthy men and women (30 young adults: 20 to 35 years; 30 older adults: 55 to 70 years) were randomly assigned to a certain type of feedback: knowledge of results or kinetic feedback. Results showed no differen...
Degenerative disorders of the foot often are painful during standing and walking. It is assumed that, because of bone deformity, callus, and deformity of the plantar pads, the plantar pressure distribution changes. Prescription of orthopaedic shoes for patients with degenerative disorders of the foot is based on the hypothesis that excessive pressu...
Electromyographic (EMG) biofeedback can be used to train motor functions at a distance, which makes therapy at home a possibility. To enable patients to train properly without the presence of a therapist, artificial feedback is considered essential. We studied the combined effect of age and timing of artificial feedback on training muscle relaxatio...
To examine the combined effect of age and timing of augmented feedback on learning muscle relaxation. Performing a gross motor task, subjects had to lower their trapezius muscle activity using the electromyographic signal as visual myofeedback.
Healthy subjects (16 young adults: 20-35 yrs; and 16 older adults: 55-70 yrs) were randomly assigned to o...
Learning motor skills is fundamental to human life. One of the most critical variables affecting motor learning, aside from practice itself, is augmented feedback (performance-related information). Although there is abundance of research on how young adults use augmented feedback to learn motor skills, little is known about how older adults use aug...
Assessment of the available evidence regarding the effect of augmented feedback on motor function of the upper extremity in rehabilitation patients.
A systematic literature search was performed to identify randomized controlled trials that evaluated the effect of augmented feedback on motor function. Two reviewers systematically assessed the method...
Objective: To determine the methodological quality of studies evaluating orthopaedic shoes and orthopaedic shoe provisions. To what extent do studies evaluating orthopaedic shoes prescribed for patients with degenerative disorders of the foot, rheumatoid arthritis, diabetes mellitus and neurological foot disorders, focus on the aspects of the Inter...
