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Kok, R. (author), Vrijdag, A. (author), van 't Veer, A.P. (author), Abbink, D.A. (author)Crew of small fast ships often experiences excessive vertical accelerations when sailing in waves, leading to discomfort and injuries. In an attempt to avoid this, experienced operators reduce speed voluntarily when they anticipate that the next vertical peak acceleration will be unacceptably large. However, at night and during excessive spray,...conference paper 2018
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Kok, M. (author), Solin, Arno (author)We present a method for scalable and fully 3D magnetic field simultaneous localisation and mapping (SLAM) using local anomalies in the magnetic field as a source of position information. These anomalies are due to the presence of ferromagnetic material in the structure of buildings and in objects such as furniture. We represent the magnetic...conference paper 2018
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Molnar, Marco (author), Kok, M. (author), Engel, Tilman (author), Kaplick, Hannes (author), Mayer, Frank (author), Seel, Thomas (author)Low back pain (LBP) is a leading cause of activity limitation. Objective assessment of the spinal motion plays a key role in diagnosis and treatment of LBP. We propose a method that facilitates clinical assessment of lower back motions by means of a wireless inertial sensor network. The sensor units are attached to the right and left side of...conference paper 2018
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Yunika, A. (author), Kok, M. (author), de Gijt, J.G. (author)General risk management standard, e.g. ISO 31000:2009, approaches risk as a coin with a pair of two sides, i.e. the threat and the opportunity. However, it is hardly the case of flood events which mainly come as threats. Despite the contrary, this study explores the potential applicability of the available risk management standards specifically...conference paper 2017
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van Loon-Steensma, J.M. (author), Kok, M. (author)In the Netherlands, the concept of a multifunctional dike has already often been implemented, and has been identified as a promising climate adaptation measure. In a multifunctional dike, functions like urban development, transport infrastructure, recreation, agriculture or nature are deliberately combined with its primary flood protection...conference paper 2016
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Dupuits, E.J.C. (author), de Bruijn, KM (author), Diermanse, FLM (author), Kok, M. (author)A breach in a flood defence will affect the downstream water levels in a riverine system, and therefore the flood risk of the system. The effect of this changed flood risk is used in an economical optimization to assess if this significantly changes the economically optimal safety targets of the flood defences in a riverine system. The impact of...conference paper 2016
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Schoemaker, M.A. (author), Verlaan, J.G. (author), Vos, R (author), Kok, M. (author)In many parts of the world, flooding is a big risk. There are numerous strategies to reduce flood risk. The amount of flood risk reduction strategies grows exponentially with the amount of possible measures that can be implemented and possible timings when measures can be implemented. In this paper, the use of a financial method called ...conference paper 2016
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Van der Krogt, M.G. (author), Van den Ham, G.A. (author), Kok, M. (author)Flow sliding of submerged slopes in front of dikes can affect the reliability of flood defences. The occurrence of flow sliding may result, sometimes with delay, in a failure mode and consequent flooding. The current safety assessment method for flow sliding does not consider the interaction between flow sliding and failure modes which can cause...conference paper 2015
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Van der Krogt, M.G. (author), Van den Ham, G.A. (author), Kok, M. (author)Flow sliding of submerged slopes in front of dikes can affect the reliability of flood defences. The occurrence of flow sliding may result, sometimes with delay, in a failure mode and consequent flooding. The current safety assessment method for flow sliding does not consider the interaction between flow sliding and failure modes which can cause...conference paper 2015
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Kok, M. (author), Schipper, H.R. (author), Grunewald, S. (author), Nijsse, R. (author)The construction of buildings with fi-ee-form surfaces can be accompanied with relatively high costs. An innovative method to produce free-form surfaces in concrete is the application of double-curved precast panels produced with a flexible re-usable mould technique. Traditional placing of reinforcing bars to strengthen such panels causes...conference paper 2014
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Schipper, H.R. (author), Grünewald, S. (author), Eigenraam, P. (author), Raghunath, P. (author), Kok, M.A.D. (author)Free-form buildings tend to be expensive. By optimizing the production process, economical and well-performing precast concrete structures can be manufactured. In this paper, a method is presented that allows producing highly accurate double curved-elements without the need for milling two expensive mould surfaces per single element. The...conference paper 2014
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Klerk, W.J. (author), Kok, M. (author), de Bruijn, K.M. (author), Jonkman, S.N. (author), van Overloop, P.J. (author)In the Netherlands, flood risk analysis is usually carried out for a location, without considering potential flood defence failures in upstream areas. This may result in significant over- or underestimation of flood risks. The effect of upstream failures on failure probabilities and flood risks in other areas is called load interdependence of...conference paper 2014
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Lendering, K.T. (author), Jonkman, S.N. (author), Kok, M. (author)During flood events emergency measures are used to prevent breaches in flood defences. However, there is still limited insight in their reliability and effectiveness. The objective of this paper is to develop a method to determine the reliability and effectiveness of emergency measures for flood defences. The investigation is focused on measures...conference paper 2014
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Schipper, H.R. (author), Grunewald, S. (author), Eigenraam, P. (author), Raghunath, P. (author), Kok, M. (author)Free-form buildings tend to be expensive. By optimizing the production process, economical and wellperforming concrete structures and elements can be manufactured. In this paper, an innovative method is presented that allows producing highly accurate double curved-elements without the need for milling two expensive mould surfaces per single...conference paper 2014
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Spekkers, M.H. (author), Kok, M. (author), Clemens, F.H.L.R. (author), Ten Veldhuis, J.A.E. (author)Intense rainfall may locally cause considerable damage in cities, e.g. because of sewer floods. A better understanding of relationships between rainfall characteristics and rainfall-related damage can help insurers and flood authorities to respond more adequately to rainfall extremes. This paper aims to study to what extent weather radars can be...conference paper 2013
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Kok, R. (author), Annema, J.A. (author), Van Sloten, R. (author)Autobelastingen gebaseerd op CO2-uitstoot De aanschafbelasting BPM is sinds 2013 volledig gebaseerd op de CO2-uitstoot van personenauto’s. Consumenten blijken gevoelig voor belastingkortingen en vrijstellingen gerelateerd aan de CO2-uitstoot. De afgelopen jaren zijn Nederlandse autokopers gemiddeld steeds kleinere, lichtere en zuinigere modellen...conference paper 2013
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Tsimopoulou, V. (author), Vrijling, J.K. (author), Kok, M. (author), Jonkman, S.N. (author), Stijnen, J.W. (author)Recent experience of large-scale water disasters such as Hurricane Katrina in 2005 and the Great Eastern Japan Earthquake and Tsunami in 2011 has reminded mankind that disasters cannot be ruledout. Unprecedented low-probability events can happen even in the most well monitored areas, causing major social-economic disruption. Failing to prepare...conference paper 2013
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Vilier, J. (author), Kok, M. (author), Nicolai, R.P. (author)The economic consequences of floods, both in the form of material damage and losses due to business interruption, can be large. This paper presents a comparison between two approaches to determine the losses due to business interruption caused by large-scale floods. A model (HIS-SSM) containing a damage function approach and an Adaptive Input...conference paper 2013
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- Mosselman, E. (author), Kok, M. (author), Leenen, H. (author), Van, M. (author) conference paper 2012
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Spekkers, M.H. (author), ten Veldhuis, J.A.E. (author), Kok, M. (author), Clemens, F.H.L.R. (author)The objective of this paper is to establish relationships between rainfall extremes and damage data from Dutch insurance industry. Rainfall data are based on a network of 33 automatic rain gauges held by the Royal Netherlands Meteorological Institute. Rainfall characteristics, such as peak rainfall intensity and rainfall volume, are correlated...conference paper 2012