Searched for: author:"van Dijk, W."
(1 - 14 of 14)
document
Brouwer, N.P. (author), Tabasi, A. (author), Moya-Esteban, A. (author), Sartori, M. (author), van Dijk, W. (author), Kingma, I. (author), van Dieen, J.H. (author)
The effectiveness of exoskeletons could be enhanced by incorporating low back muscle fatigue estimates in their control. The aim of the present study was to evaluate whether low back muscle fatigue can be estimated using the spectral content of trunk extensor muscle high-density EMG (HDEMG) by considering the motor unit action potential...
bookPart 2022
document
Tabasi, A. (author), Lazzaroi, M. (author), Brouwer, N.P. (author), Kingma, I. (author), van Dijk, W. (author), de Looze, M.P. (author), Toxiri, S. (author), Ortiz, J. (author), van Dieen, J.H. (author)
Estimation of low-back load can be used to determine the assistance to be provided by an actuated back-support exoskeleton. To this end, an EMG-driven muscle model and a regression model can be implemented. The goal of the regression model is to reduce the number of required sensors for load estimation. Both models need to be calibrated. This...
bookPart 2022
document
Pupa, A. (author), van Dijk, W. (author), Secchi, C. (author)
In collaborative robotic applications, human and robot have to work together during a whole shift for executing a sequence of jobs. The performance of the human robot team can be enhanced by scheduling the right tasks to the human and the robot. The scheduling should consider the task execution constraints, the variability in the task execution...
article 2021
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Tabasi, A. (author), Kingma, I. (author), de Looze, M.P. (author), van Dijk, W. (author), Koopman, A.S. (author), van Dieën, J.H. (author)
Back support exoskeletons are designed to prevent work-related low-back pain by reducing mechanical loading. For actuated exoskeletons, support based on moments actively produced by the trunk muscles appears a viable approach. The moment can be estimated by a biomechanical model. However, one of the main challenges here is the feasibility of...
article 2020
document
van Teeffelen, K.J. (author), Dresscher, D. (author), van Dijk, W. (author), Stramigioli, S. (author)
Humans have multiple ways to adapt their arm dynamics to the task they have to perform. One way of doing this is through co-contraction of antagonist muscles. In telemanipulation this ability is easily lost due to time delays, quantization effects, bandwidth or hardware limitations. In this work a new concept for telemanipulation is presented....
conference paper 2018
document
van Dijk, W. (author), van Rhijn, G. (author), Bosch, T. (author), Bergman, M. (author), Schoenmakers, F. (author)
De opkomst van robots maakt het mogelijk dat mens en robot zonder veiligheidsbarrieres in dezelfde ruimte werken. Dit opent nieuwe mogelijkheden voor mens-robotsamenwerking waarbij kan worden gebruikgemaakt van ieders unieke vaardigheden. Het blijft echter een uitdaging om een effectieve samenwerking tot stand te brengen. Binnen het Raak-project...
article 2017
document
de Looze, M.P. (author), Krause, F. (author), van Dijk, W. (author)
Exoskeletten zijn hot. Bijna dagelijks verschijnen nieuwe artikelen in de pers en filmpjes op YouTube, onder andere over exoskeletten als oplossing voor lichamelijk zwaar werk. Hoe ver staat het nu met de ontwikkeling van deze exoskeletten? Gaan ze de werknemer straks echt helpen bij het verrichten van lichamelijk zwaar werk?www.humanfactors.nl
article 2016
document
de Jong, P. (author), van Dijk, W. (author), de Rooij, M. (author)
The composition of 23 concrete mixtures was varied in five separate series to evaluate the influence of porosity on the <sup>222</sup>Rn exhalation rate. In each series, a range in porosities is obtained by varying (1) the amount of cement, (2) type of cement (Portland or blast furnace slag cement), (3) the amount of water at a fixed cement...
article 2011
document
Leendertse, P.M. (author), Slot, M. (author), Bachet, T.T. (author), de With, C. (author), van Dijk, W. (author)
report 2011
document
van Dijk, W. (author), Ory, F. (author), TNO Preventie en Gezondheid (author)
Wanneer zorgwekkende opvoedingssituaties op tijd onderkend worden, kan vroege interventie veel narigheid voorkomen. Verloskundigen kunnen door het nauwe contact met het gezin signalen herkennen, maar het ontbreekt hen vaak aan kennis. Wat zijn de risicofactoren, hoe communiceer je over het gesignaleerde gedrag met de ouders en naar wie kun je...
article 2006
document
Schalkwijk, C.G. (author), Poland, D.C.W. (author), van Dijk, W. (author), Kok, A. (author), Emeis, J.J. (author), Dräger, A.M. (author), Doni, A. (author), van Hinsbergh, V.W.M. (author), Stehouwer, C.D.A. (author), Gaubius instituut TNO (author)
Moderately increased plasma concentrations of C-reactive protein are associated with an increased risk of cardiovascular disease, C-reactive protein, its relation to a low degree of inflammatory activation and its association with activation of the endothelium have not been systematically investigated in Type I (insulin-dependent) diabetes...
article 1999
document
de Jong, P. (author), van Dijk, W. (author), Brouwer, D.H. (author), Centrum voor Stralingsbescherming en Dosimetrie TNO (author)
report 1998
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de Jong, P. (author), van Dijk, W. (author), van Hulst, J.G.A. (author), van Heijningen, R.J.J. (author), Centrum voor Stralingsbescherming en Dosimetrie TNO (author)
In a series of 18 concrete samples, the influence of several parameters related to composition and production processes on the radon exhalation rate was studied. The investigated parameters were: amount and type of cement, water-cement ratio, curing conditions and curing time, type of aggregates, compressive strength, and water evaporation rate...
conference paper 1997
document
Radiologische Dienst TNO (author), de Jong, P. (author), van Dijk, W. (author)
The retaining effect of over 20 different surface coatings on the free 222Rn exhalation rate has been studied. Coatings that are normally applied for decoration of walls and ceilings in homes were found to be ineffective. Reductions of up to 75% were found for other coatings studied, when applied to all sides of the test walls. If the surface...
article 1994
Searched for: author:"van Dijk, W."
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