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Swamy, A. (author), Spliethoff, Jarich W. (author), Burström, Gustav (author), Babic, Drazenko (author), Reich, Christian (author), Groen, Joanneke (author), Edström, Erik (author), Elmi-Terander, Adrian (author), Racadio, John M. (author), Dankelman, J. (author), Hendriks, B.H.W. (author)BACKGROUND: The safe and accurate placement of pedicle screws remains a critical step in open and minimally invasive spine surgery, emphasizing the need for intraoperative guidance techniques. Diffuse reflectance spectroscopy (DRS) is an optical sensing technology that may provide intraoperative guidance in pedicle screw placement. PURPOSE:...journal article 2020
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Groen, Johan C. (author), Kooijman, Wim (author), van Belzen, Djamilla (author), Meesters, G.M.H. (author), Schütz, Denis (author), Aschl, Timothy (author), Verolme, Patrick (author)Unwanted changes in powder flow behavior can unexpectedly occur when a product is exposed to certain conditions of temperature and humidity. This can happen during production, but also during transport or storage. The work reported here demonstrates the novel approach of using an amended powder rheology set-up for measuring and predicting...journal article 2020
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Zhang, Yan (author), Hopkins, Margaret A. (author), Liptrot, David J. (author), Khanbareh, Hamideh (author), Groen, W.A. (author), Zhou, Xuefan (author), Zhang, Dou (author), Bao, Yinxiang (author), Zhou, Kechao (author), Bowen, Chris R. (author), Carbery, David R. (author)We demonstrate that trimethylamine borane can exhibit desirable piezoelectric and pyroelectric properties. The material was shown to be able operate as a flexible film for both thermal sensing, thermal energy conversion and mechanical sensing with high open circuit voltages (>10 V). A piezoelectric coefficient of d<sub>33</sub>≈10–16 pC N...journal article 2020
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Oosting, R.M. (author), Wauben, L.S.G.L. (author), Madete, J.K. (author), Groen, R.S. (author), Dankelman, J. (author)Background<br/>Strategies are needed to increase the availability of surgical equipment in low‐ and middle‐income countries (LMICs). This study was undertaken to explore the current availability, procurement, training, usage, maintenance and complications encountered during use of electrosurgical units (ESUs) and laparoscopic equipment.<br/><br/...journal article 2020
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Deutz, D.B. (author), van der Zwaag, S. (author), Groen, W.A. (author)As demand rises for flexible electronics, traditionally prepared sintered ceramic sensors must be transformed into fully new sensor materials that can bend and flex in use and integration. Negative temperature coefficient of resistance (NTC) ceramic thermistors are preferred temperature sensors for their high accuracy and excellent stability,...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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Leandro Cruz, M. (author), van den Bogaard, M.E.D. (author), Saunders-Smits, Gillian (author), Groen, W.A. (author)Contribution: This study reports on a reliable and valid instrument that measures engineering students' perceptions of their competency levels. A better understanding of students' needs in engineering curricula will support the development of engineering students' transversal competencies. Background: Prior research has investigated how...journal article 2020
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van den Hoed, Annemarie (author), Landman, H.M. (author), van Baelen, D. (author), Stroosma, O. (author), van Paassen, M.M. (author), Groen, Eric L. (author), Mulder, Max (author)Objective: We tested whether a procedure in a hexapod simulator can cause incorrect assumptions of the bank angle (i.e., the “leans”) in airline pilots as well as incorrect interpretations of the attitude indicator (AI). Background: The effect of the leans on interpretation errors has previously been demonstrated in nonpilots. In-flight,...journal article 2020
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Steijlen, A.S.M. (author), Bastemeijer, J. (author), Groen, Pim (author), Jansen, K.M.B. (author), French, P.J. (author), Bossche, A. (author)This paper presents a method to continuously collect and reliably measure sweat analyte concentrations during exercise. The method can be used to validate newly developed sweat sensors and to obtain insight into intraindividual variations of sweat analytes in athletes. First, a novel design of a sweat collection system is created. The sweat...journal article 2020
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Mkhoyan, T. (author), Stuber, V.L. (author), Nazeer, N. (author), De Breuker, R. (author), Groves, R.M. (author), Groen, W.A. (author), van der Zwaag, S. (author), Sodja, J. (author), Wang, X. (author)PowerPoint presentationother 2020
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Oosting, R.M. (author), Ouweltjes, Koen (author), Hoeboer, M.D.B. (author), Hesselink, Larissa (author), Madete, J.K. (author), Diehl, J.C. (author), Groen, R. S. (author), Wauben, L.S.G.L. (author), Dankelman, J. (author)To comply with the large global need for surgery, surgical equipment that fits the challenging environment in low-and middle-income countries (LMICs) should be designed. The aim of this study is to present a context-specific design of an electrosurgical unit (ESU) and a monopolar handheld to improve global access to surgery. This paper...journal article 2020
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Heijboer, S.E.H. (author), Tempelman, E. (author), Schumann, Josef (author), Groen, W.A. (author)Current transformational developments in automotive user interface (UI) technology are causing a shift in emphasis from safety and efficiency to emotion and flexibility. The many factors to consider in parallel make this a difficult process, in which technological affordances all too easily push the user to the background. To address this...conference paper 2019
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Landman, A. (author), Groen, E.L. (author), Frank, M. (author), Steinhardt, G. (author), van Paassen, M.M. (author), Bronkhorst, A.W. (author), Mulder, M. (author)Aviation safety organizations have recommended that airline pilots are trained for startle and surprise. However, little information is available on useful training interventions. Therefore, a training intervention trial was executed during airline recurrent simulator training. The method consisted of a slow visual scan from the side-window,...conference paper 2019
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Groen, J.P. (author), Wu, J. (author), Sigmund, Ole (author)This paper concerns compliance minimization and projection of coated structures with orthotropic infill material in 2D. The purpose of the work is two-fold. First, we introduce an efficient homogenization-based approach to perform topology optimization of coated structures with orthotropic infill material. The design space is relaxed to allow...journal article 2019
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Zhao, Dong (author), Lenz, Thomas (author), Gelinck, Gerwin H. (author), Groen, W.A. (author), Damjanovic, Dragan (author), de Leeuw, D.M. (author), Katsouras, Ilias (author)Depolarization in ferroelectric materials has been studied since the 1970s, albeit quasi-statically. The dynamics are described by the empirical Merz law, which gives the polarization switching time as a function of electric field, normalized to the so-called activation field. The Merz law has been used for decades; its origin as domain-wall...journal article 2019
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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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Knulst, A.J. (author), Gupta, Shailvi (author), Groen, Reinou S. (author), Maharjan, Dipak (author), Kapendra, Amatya S. (author), Dankelman, J. (author), Kushner, Adam L. (author)Objectives: Lack of access to safe surgery is seen as a major issue that needs to be addressed. The aim of this study was to understand which combinations of factors relate to high occurrences of unmet needs and disability in Nepal, and consequently, how to focus future work to maximise impact in this country. Methods: A large population...journal article 2019
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Groen, Brenda (author), van der Voordt, Theo (author), Hoekstra, B.S. (author), van Sprang, Hester (author)Purpose: This paper aims to explore the relationship between satisfaction with buildings, facilities and services and perceived productivity support and to test whether the findings from a similar study of Batenburg and Van der Voordt (2008) are confirmed in a repeat study after 10 years with more recent data. Design/methodology/approach:...journal article 2019
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Thomas, Miguel (author), Bossche, A. (author), Groen, W.A. (author), Bastemeijer, J. (author), Steijlen, A.S.M. (author), French, P.J. (author)Sweating is a normal reaction of the body to exercise. Although much of sweat is water, there are many other components. These components can be an indication of the condition of the athlete. Increase of elements and salts in the tissue will also work their way through to the sweat. Measurement directly in tissue can be an excellent indicator,...conference paper 2019
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Landman, H.M. (author), Groen, E.L. (author), Frank, M (author), Steinhardt, G. (author), van Paassen, M.M. (author), Bronkhorst, A (author), Mulder, Max (author)Aviation safety organizations have recommended that airline pilots are trained for startle and surprise. However, little information is available on useful training interventions. Therefore, a training intervention trial was executed during airline recurrent simulator training. The method consisted of a slow visual scan from the side-window,...conference paper 2019