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Kermavnar, T. (author), de Vries, A.W. (author), de Looze, M.P. (author), O'Sullivan, L.W. (author)This study is an updated systematic review of papers published in the last 5 years on industrial back-support exoskeletons. The research questions were aimed at addressing the recent findings regarding objective (e.g. body loading, user performance) and subjective evaluations (e.g. user satisfaction), potential side effects, and methodological...article 2021
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Vink, P. (author), Hallbeck, S. (author)The term comfort is often seen relating to the marketing of products like chairs, cars, clothing, hand tools and even airplane tickets, while in the scientific literature, the term discomfort shows up often, since it is used in research. Few papers explain the concept of a localized comfort experience in relation to product use, although people...article 2012
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Groenesteijn, L. (author), Ellegast, R.P. (author), Keller, K. (author), Krause, F. (author), Berger, H. (author), de Looze, M.P. (author)In the present study, we investigated the effect of office tasks on posture and movements in field settings, and the comfort rating for chair characteristics and correlation with type of task. The tasks studied were: computer work, telephoning, desk work and conversation. Postures, movements, chair part inclinations and comfort rating data were...article 2012
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Ellegast, R.P. (author), Kraft, K. (author), Groenesteijn, L. (author), Krause, F. (author), Berger, H. (author), Vink, P. (author)Prolonged and static sitting postures provoke physical inactivity at VDU workplaces and are therefore discussed as risk factors for the musculoskeletal system. Manufacturers have designed specific dynamic office chairs featuring structural elements which promote dynamic sitting and therefore physical activity. The aim of the present study was to...article 2012
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Zenk, R. (author), Franz, M. (author), Bubb, H. (author), Vink, P. (author)For car manufacturers, seat comfort is becoming more important in distinguishing themselves from their competitors. Therefore, many studies on participative seat comfort are carried out. In this paper, an objective assessment approach is reported which evaluates the concept of "optimal load distribution", based on the identification of a close...article 2012
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Selimis, G. (author), Huang, L. (author), Massé, F. (author), Tsekoura, I. (author), Ashouei, M. (author), Catthoor, F. (author), Huisken, J. (author), Stuyt, J. (author), Dolmans, G. (author), Penders, J. (author), de Groot, H. (author)In order for wireless body area networks to meet widespread adoption, a number of security implications must be explored to promote and maintain fundamental medical ethical principles and social expectations. As a result, integration of security functionality to sensor nodes is required. Integrating security functionality to a wireless sensor...article 2011
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Wartzek, T. (author), Mühlsteff, J. (author), Imhoff, M. (author)Seit vielen Jahrzehnten ist die Messung der Körpertemperatur allgemein etabliert in medizinischen und nicht-medizinischen Anwendungen, unter anderem in der Krankenversorgung, Arbeitsmedizin, Sportmedizin oder militärischen Anwendungen. Allerdings gibt es auch heute noch zahlreiche Herausforderungen wie z.B. die präzise Definition der...report 2011
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van Aken, R.H. (author), Maas, D.J. (author), Hagen, C.W. (author), Barth, J.E. (author), Kruit, P. (author), TNO Industrie en Techniek (author)The low-voltage foil corrector is a novel type of foil aberration corrector that can correct for both the spherical and chromatic aberration simultaneously. In order to give a realistic example of the capabilities of this corrector, a design for a low-voltage scanning electron microscope with the low-voltage foil corrector is presented. A fully...article 2010
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Naber, R.C.G. (author), Asadi, K. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), de Boer, B. (author), TNO Industrie en Techniek (author)A memory functionality is a prerequisite for many applications of electronic devices. Organic nonvolatile memory devices based on ferroelectricity are a promising approach toward the development of a low-cost memory technology. In this Review Article we discuss the latest developments in this area with a focus on three of the most important...article 2010
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Mariani, B. (author), Hoskovec, C. (author), Rochat, S. (author), Büla, C. (author), Penders, J. (author), Aminian, K. (author), Laboratory of Movement Analysis and Measurements, Ecole Polytechnique Fédérale de Lausanne, -STI-IBI2-LMAM, Station 11/ELH 137, CH-1015 Lausanne, Switzerland Service of Geriatric Medicine, CHUV and CUTR Sylvana, Epalinges, Switzerland Holst Centre/IMEC, High Tech Campus 31, Eindhoven, Netherlands (author)This study describes the validation of a new wearable system for assessment of 3D spatial parameters of gait. The new method is based on the detection of temporal parameters, coupled to optimized fusion and de-drifted integration of inertial signals. Composed of two wirelesses inertial modules attached on feet, the system provides stride length,...article 2010
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Jellema, L.C. (author), Mey, T. (author), Koster, S. (author), Verpoorte, E. (author), TNO Kwaliteit van Leven (author)A new microfluidic approach for charge-based particle separation using combined hydrodynamic and electrokinetic effects is presented. A recirculating flow pattern is employed, generated through application of bi-directional flow in a narrow glass microchannel incorporating diverging or converging segments at both ends. The bi-directional flow in...article 2009
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Landucci, G. (author), Molag, M. (author), Reinders, J. (author), Cozzani, V. (author), TNO Bouw en Ondergrond (author)Two large-scale diesel pool fire engulfment tests were carried out on LPG tanks protected with intumescing materials to test the effectiveness of thermal coatings in the prevention of hot BLEVE accidental scenarios in the road and rail transport of LPG. A specific test protocol was defined to enhance reproducibility of experimental tests. The...article 2009
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IJmker, S. (author), Mikkers, J. (author), Blatter, B.M. (author), van der Beek, A.J. (author), van Mechelen, W. (author), Bongers, P.M. (author), TNO Kwaliteit van Leven (author)Introduction: "Ergonomic" questionnaires are widely used in epidemiological field studies to study the association between workstation characteristics, work posture and musculoskeletal disorders among office workers. Findings have been inconsistent regarding the putative adverse effect of work postures. Underestimation of the true association...article 2008
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Wesselink, J.M. (author), Berkhoff, A.P. (author), TNO Industrie en Techniek (author)In this paper, real-time results are given for broadband multichannel active noise control using the regularized modified filtered-error algorithm. As compared to the standard filtered-error algorithm, the improved convergence rate and stability of the algorithm are obtained by using an inner-outer factorization of the transfer path between the...article 2008
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Kuijt-Evers, L.F.M. (author), Bosch, T. (author), Huysmans, M.A. (author), de Looze, M.P. (author), Vink, P. (author), TNO Kwaliteit van Leven (author)In the current study, the relationship between objective measurements and subjective experienced comfort and discomfort in using handsaws was examined. Twelve carpenters evaluated five different handsaws. Objective measures of contact pressure (average pressure, pressure area and pressure-time (P-t) integral) in static and dynamic conditions,...article 2007
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Huysmans, M.A. (author), de Looze, M.P. (author), Hoozemans, M.J.M. (author), van der Beek, A.J. (author), van Dieën, J.H. (author), TNO Kwaliteit van Leven (author)The study was designed to determine the effect of joystick handle size and (display-control) gain at two levels of required task precision on performance and physical load on crane operators. Eight experienced crane operators performed a simulated crane operation task on a computer by use of a joystick with either a short or a large handle. The...article 2006
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Serov, A.N. (author), Nieland, J. (author), Oosterbaan, S. (author), Steenbergen, W. (author), Bekman, H.H.P.T. (author), de Mul, F.F.M. (author), van Kranenburg, H. (author), TNO Defensie en Veiligheid (author)An integrated optoelectronic probe with small dimensions, for direct-contact laser Doppler blood flow monitoring has been realized. A vertical cavity surface emitting laser (VCSEL), and a chip with photodetectors and all necessary electronics are integrated in a miniature probe head connected to a laptop computer. The computer sound processor is...article 2006
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Lenior, D. (author), Janssen, W.H. (author), Neerincx, M.A. (author), Schreibers, K. (author), TNO Defensie en Veiligheid TNO Kwaliteit van Leven (author)The theme Smart Transport can be described as adequate human-system symbiosis to realize effective, efficient and human-friendly transport of goods and information. This paper addresses how to attune automation to human (cognitive) capacities (e.g. to take care of information uncertainty, operator trust and mutual man-machine adaptations). An...article 2006
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Hekkenberg, R.T. (author), Richards, A. (author), Beissner, K. (author), Zeqiri, B. (author), Bezemer, R.A. (author), Hodnett, M. (author), Prout, G. (author), Cantrall, C. (author), TNO Kwaliteit van Leven (author)Ultrasound (US) physiotherapy as a clinical treatment is extremely common in the Western world. Internationally, regulation to ensure safe application of US physiotherapy by regular calibration ranges from nil to mandatory. The need for a portable power standard (PPS) has been addressed within a European Community (EC)-funded project. This PPS...article 2006
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Kistemaker, J.A. (author), den Hartog, E.A. (author), Daanen, H.A.M. (author), TNO Defensie en Veiligheid (author)The SensorTouch thermometer performs an infrared measurement of the skin temperature above the Superficial Temporal Artery (STA). This study evaluates the validity and the accuracy of the SensorTouch thermometer. Two experiments were performed in which the body temperature was measured with a rectal sensor, with an oesophageal sensor and with...article 2006