- document
-
Landscape Architecture at TU Delft 1973-2011: Ter gelegenheid afscheid Prof. Dr. Clemens SteenbergenHoman, A. (author), Van der Weide, A. (author), Bordes, B. (author), Kwast, B. (author), Van den Heuvel, D. (author), Stegewerns, C. (author), Jongsma, C. (author), Van Ees, C. (author), Wouters, C. (author), Jauslin, D. (author), Wijnen, D. (author), Piccinini, D. (author), Dekker, E. (author), Van der Kooij, E. (author), Luiten, E. (author), De Jong, E. (author), Toni, F. (author), Aerts, F. (author), Verschuure-Stuip, G. (author), Stotijn, H. (author), Bakker, I. (author), Bobbink, I. (author), Meulenberg, I. (author), Woltjer, J. (author), Wilbers, J. (author), Niemeijer, J. (author), Lonsdale, J. (author), Wiers, J. (author), Pouderoijen, M. (author), Roos, A. (author), Hellendoorn, D. (author), Visser, K. (author), Storm-Prins, M. (author), Van der Helm, M. (author), De Vos, L. (author), Veldman, M. (author), Hartveld, M. (author), Den Ruijter, M. (author), Verbruggen, N. (author), Rickert, N. (author), De Graaf, P. (author), Van der Ree, P. (author), Aben, R. (author), Buijs, R. (author), Rooij, R. (author), Van der Velde, R. (author), De Wit, S. (author), Nijhuis, S. (author), Holtappels, S. (author), Meeks, S. (author), Van Assen, S. (author), Van Oosten, S. (author), Van den Busken, S. (author), Hermans, W. (author)Het is haast onmogelijk om de werkzame jaren van Prof. Dr. Clemens Steenbergen hier op de TU Delft in het kort samen te vatten. Dit is een persoonlijk boek van collega's, medewerkers en studenten ter gelegenheid van zijn afscheid op 15. December 2011.book 2011
- document
-
Worm, G.I.M. (author), Kelderman, J.P. (author), Lapikas, T. (author), Van der Helm, A.W.C. (author), Van Schagen, K.M. (author), Rietveld, L.C. (author)This research deals with the contribution of process simulation models to the factory acceptance test (FAT) of process automation (PA) software of drinking water treatment plants. Two test teams tested the same piece of modified PA-software. One team used an advanced virtual commissioning (AVC) system existing of PA-emulation and integrated...conference paper 2012
- document
-
Liu, W. (author), Stappers, P.J. (author), Pasman, G.J. (author), Van der Helm, A.J.C. (author), Aprile, W.A. (author), Keller, I. (author)This study aimed to explore ways of user inputs through designing interactive game controllers with different type of sensor. From building four experiential prototypes on Pong, we learned to drive design by focusing on interaction qualities, which determine the use of sensors. We found that the interaction qualities together as a set offer a...conference paper 2012
- document
-
Ross, P.S. (author), Van der Helm, A.W.C. (author), Van den Broeke, J. (author), Rietveld, L.C. (author)The application of ozone in water treatment serves many purposes, such as disinfection, degradation of organic micro-pollutants and oxidation of taste, odour and colour producing compounds. A commonly used method to determine the disinfection capacity of ozonation is calculating the exposure of pathogens to ozone, this capacity is expressed as...conference paper 2012
- document
-
Van der Helm, A.W.C. (author), Bhai, A. (author), Coloni, F. (author), Koning, W.J.G. (author), De Bakker, P.T. (author)Three years after Zaatari camp was established in the Hashemite Kingdom of Jordan, to host Syrian refugees, its population has grown to 82,000 persons. Zaatari is one of the largest refugee camps in the world, in one of the most water scarce areas on earth. Since its establishment, drinking water has been delivered by trucks to communal...conference paper 2015
- document
- Van der Helm, A.J.C. (author), Jaskiewicz, T.J. (author), Romero Herrera, N.A. (author) conference paper 2015
- document
-
Van der Helm, A.W.C. (author), Kramer, O.J.I. (author), Hooft, J.F.M. (author), De Moel, P.J. (author)In practice, drinking water technologists use simplified calculation methods for aquatic chemistry calculations. Recently, the database stimela.dat is developed especially for aquatic chemistry for drinking water treatment processes. The database is used in PHREEQC, the standard in geohydrology for calculating chemical equilibria in groundwater....conference paper 2015
- document
-
Damveld, H.J. (author), Abbink, D.A. (author), Mulder, M. (author), Mulder, Mark (author), Van Paassen, M.M. (author), Van der Helm, F.C.T. (author), Hosman, R.J.A.W. (author)This goal of this study is to understand which parts of the the neuromuscular system contribute during a pitch control task. A novel method developed at the Delft University of Technology allows us to determine the contribution of the neuromuscular feedback system by identifying the admittance, which is the frequency response function of the...conference paper 2010
- document
-
Mugge, W. (author), Abbink, D.A. (author), Schouten, A.C. (author), Dewald, J.P.A. (author), Van der Helm, F.C.T. (author)This study aims to quantify the separate contributions of muscle force feedback, muscle spindle activity and co-contraction to the performance of voluntary tasks (‘‘reduce the influence of perturbations on maintained force or position’’). Most human motion control studies either isolate only one contributor, or assume that relevant reflexive...journal article 2009
- document
-
Smit, G. (author), Plettenburg, D.H. (author), Van der Helm, F.C. (author)The goal of this study was to find an efficient method of energy transmission for application in an anthropomorphic underactuated body-powered (BP) prosthetic hand. A pulley-cable finger and a hydraulic cylinder finger were designed and tested to compare the pulley-cable transmission principle with the hydraulic cylinder transmission principle....journal article 2014
- document
-
Van Nierop, O.A. (author), Van der Helm, A. (author), Overbeeke, K.J. (author), Djajadiningrat, T.J.P. (author)We present a skeletal linked model of the human hand that has natural motion. We show how this can be achieved by introducing a new biology-based joint axis that simulates natural joint motion and a set of constraints that reduce an estimated 150 possible motions to twelve. The model is based on observation and literature. To facilitate testing...journal article 2007
- document
-
Meskers, C.G.M. (author), Schouten, A.C. (author), De Groot, J.H. (author), De Vlugt, E. (author), Van Hilten, B.J.J. (author), Van der Helm, F.C.T. (author), Arendzen, H.J.H. (author)Background Instead of hyper-reflexia as sole paradigm, post-stroke movement disorders are currently considered the result of a complex interplay between neuronal and muscular properties, modified by level of activity. We used a closed loop system identification technique to quantify individual contributors to wrist joint stiffness during an...journal article 2009
- document
-
Schuurmans, J. (author), Van der Helm, F.C.T. (author), Schouten, A.C. (author)During posture control, reflexive feedback allows humans to efficiently compensate for unpredictable mechanical disturbances. Although reflexes are involuntary, humans can adapt their reflexive settings to the characteristics of the disturbances. Reflex modulation is commonly studied by determining reflex gains: a set of parameters that quantify...journal article 2010
- document
-
Visser, M.C. (author), Gattol, V. (author), Van der Helm, R. (author)Traditionally, marketing of sustainable products addresses green buyers, thus missing out on the mainstream consumers and volume necessary to cover the potentially higher cost of more sustainable materials. However, how to effectively communicate more sustainable products to mainstream consumers and to increase their buying intention is still...journal article 2015
- document
-
De Bruijn, E. (author), Van der Helm, F.C.T. (author), Happee, R. (author)Background: Musculoskeletal models served to analyze head–neck motion and injury during automotive impact. Although muscle activation is known to affect the kinematic response, a model with properly validated muscle contributions does not exist to date. The goal of this study was to enhance a musculoskeletal neck model and to validate passive...journal article 2015
- document
-
Asadi Nikooyan, A. (author), Veeger, H.E.J. (author), Chadwick, E.K.J. (author), Praagman, M. (author), Van der Helm, F.C.T. (author)The Delft Shoulder and Elbow Model (DSEM), a musculoskeletal model of the shoulder and elbow has been extensively developed since its introduction in 1994. Extensions cover both model structures and anatomical data focusing on the addition of an elbow part and muscle architecture parameters. The model was also extended with a new inverse...journal article 2011
- document
-
Hummels, C.C.M. (author), Van der Helm, A.J.C. (author), Hengeveld, B.J. (author), Luxen, R.F. (author), Voort, R. (author), Van Balkom, H. (author), De Moor, J. (author)Very young non- or hardly speaking children with severe disabilities need active guidance to stimulate interaction with their environment in order to develop their communicative and linguistic skills. Augmentative and Alternative Communication (AAC) systems can help this process, provided that they are tuned to this specific user group....journal article 2007
- document
-
Munts, A.G. (author), Mugge, W. (author), Meurs, T.S. (author), Schouten, A.C. (author), Marinus, J. (author), Lorimer Moseley, G. (author), Van der Helm, F.C.T. (author), Van Hilten, J.J. (author)Background: Complex regional pain syndrome (CRPS) may occur after trauma, usually to one limb, and is characterized by pain and disturbed blood flow, temperature regulation and motor control. Approximately 25% of cases develop fixed dystonia. Involvement of dysfunctional GABAergic interneurons has been suggested, however the mechanisms that...journal article 2011
- document
-
Schouten, A.C. (author), De Vlugt, E. (author), Van Hilten, J.J. (author), Van der Helm, F.C. (author)This study aimed to analyse the dynamic properties of the muscle spindle feedback system of shoulder muscles during a posture task. External continuous force disturbances were applied at the hand while subjects had to minimize their hand displacements. The results were analysed using two frequency response functions (FRFs) from which the model...journal article 2008
- document
-
Smit, G. (author), Plettenburg, D.H. (author), Van der Helm, F.C.T. (author)Rejection rates of upper limb prostheses are high (23-45%). Amputees indicate that the highest design priority should be reduction of the mass of the prosthetic device. Despite all efforts, the mass of the new prosthetic hands is 35-73% higher than that of older hands. Furthermore current hands are thicker than a human hand, they operate slower...journal article 2014