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Verhagen, H.J. (author), Jansen, L. (author)For describing the relation between the grainsize and the nominal diameter (d50 vs. dn50) usually a factor 0.84 is used. This factor has been derived by Laan [1981] "De relatie tussen vorm en gewicht van breuksteen (the relation between shape and weight of pieces of rock), report MAW-R-81079". However, this original report cannot be retrieved...report 2014
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Verhagen, H.J. (author), Klein Breteler, M. (author), Bottema, M. (author)Korte notitie over het risico van een tsunami en een meteotsunami langs de Nederlandse kust.report 2014
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Li, B. (author), Verhagen, A.A. (author), Teunissen, P.J.G. (author)Successful integer carrier-phase ambiguity resolution is crucial for high precision GNSS applications. It includes both integer estimation and evaluation. For integer estimation, the LAMBDA method has been applied in a wide variety of GNSS applications. The method’s popularity stems from its numerical efficien-cy and statistical optimality....conference paper 2013
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Singh, M.P. (author), Arrott, M. (author), Balke, T. (author), Chopra, A. (author), Christiaanse, R.M.J. (author), Cranefield, S. (author), Dignum, F. (author), Eynard, D. (author), Farcas, E. (author), Fornare, N. (author), Gandon, F. (author), Governatori, G. (author), Dam, H.K. (author), Hulstijn, J. (author), Krueger, I. (author), Lam, H.P. (author), Meisinger, M. (author), Noriega, P. (author), Tony, B. (author), Savarimuthu, R. (author), Tadanki, K. (author), Verhagen, H. (author), Villata, S. (author)This chapter presents a variety of applications of norms. These applications include governance in sociotechnical systems, data licensing and data collection, understanding software development teams, requirements engineering, assurance, natural resource allocation, wireless grids, autonomous vehicles, serious games, and virtual worlds.book chapter 2013
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- Van Nes, A. (author), Lopez, M. (author), De Bonth, L. (author), Verhagen, D. (author), Waayer, S. (author) conference paper 2013
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Haber, A. (author), Polo, A. (author), Maj, I. (author), Pereira, S.F. (author), Urbach, H.P. (author), Verhagen, M.H.G. (author)In this paper we experimentally demonstrate the proof of concept for predictive control of thermally induced wavefront aberrations in optical systems. On the basis of the model of thermally induced wavefront aberrations and using only past wavefront measurements, the proposed adaptive optics controller is able to predict and to compensate the...journal article 2013
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Verhagen, H.J. (author)Example calculation of a dike height incorporating the uncertainty in the wave growth formula of Young and Verhagen.report 2013
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Verhagen, W.J.C. (author)In the aerospace domain, manufacturers and operators constantly seek to improve their products and processes. Increasingly, knowledge-based applications are developed to support or automate knowledge-intensive engineering tasks, saving time and money. However, engineering knowledge changes over time, which has implications for the usability and...doctoral thesis 2013
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Verhagen, H.J. (author)Waves can be measured in several ways. One way of measuring waves is by measuring the wave pressure at a certain depth using a pressure sensor and calculate the wave information from the pressure record. The EMS wave logger uses a Honeywell MLH 050 PGP 06A pressure sensor. The information is stored by the logger on a SD card. The software in the...report 2013
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Labrujere, A.L. (author), Verhagen, H.J. (author)When calculating the Carbon Footprint for a product or service, a direct link is made between the total amount of consumed energy and the produced amount of carbon dioxide during production. For that reason calculating the carbon footprint of various alternatives is a very straightforward method to compare energy consumption and more importantly...conference paper 2012
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Curran, R. (author), Fischer, L. (author), Pérez, D. (author), Klein, K. (author), Hoekstra, J. (author), Roling, P. (author), Verhagen, W.J.C. (author)Air transport must evolve if it is to optimize its value in the 21st century. The mood in the aerospace industry is positive with regard to economic recovery, but the focus in this transitional time must be on sustaining value, without losing sight of environmental and safety prioritiesbook 2012
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Tri, M.C. (author), Cong, M.V. (author), Verhagen, H.J. (author), Nghia, N.K. (author)In the low-lying coastal regions coastal defense structures are usually designed with a main function to protect the hinterland from highly vulnerable of sea flooding. Sea dikes are usually the most common and important elements which form the coastal flood defense system. Sea dikes are designed at a pre-defined circumstance and requirement. For...conference paper 2012
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Van de Koppel, M.A. (author), Muilwijk, M. (author), Verhagen, H.J. (author)A physical model study on the row averaged static and dynamic load on the bottom row of single layer armour units in order to investigate the influence of various parameters such as the number of rows on the slope of a breakwater and the initial relative packing density.conference paper 2012
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Lioutas, A. (author), Smith, G.M. (author), Verhagen, H.J. (author)The scope of this research is to find an empirical formula to describe the distribution of wave overtopping in the region behind the crest. A physical model was set up in which irregular waves were generated. In order to find a formula which adequately describes the test observations, the influence of several parameters has been analysed. The...conference paper 2012
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Kik, R. (author), Van den Bos, J.P. (author), Maertens, J. (author), Verhagen, H.J. (author), Van der Meer, J.W. (author)Different layer design of a rock slope and under layers has a large effect on the strengths on the rock slope itself. In the stability formula developed of VAN DER MEER [1988] this effect is represented by the term Notional Permeability with symbol P. A more open, or permeable, structure underneath the armour layer has the ability to dissipate...conference paper 2012
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Chen, X. (author), Hassan, W. (author), Uijttewaal, W. (author), Verwaest, T. (author), Verhagen, H.J. (author), Suzuki, T. (author), Jonkman, S.N. (author)Wide crested dike can reduce the kinetic energy of the overtopping wave and make the overtopping wave to flow back to the seaside. If a coastal town were built on or near a dike, the overtopping wave running on the dike crest generates the force which can affect the buildings located in its path. However, quantifying the hydrodynamic load on the...conference paper 2012
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Mulders, P.H.M. (author), Verhagen, H.J. (author)A new series of physical model tests were conducted to analyse the behaviour of a breakwater core when it becomes exposed to wave attack. The emphasis of this research was on the measured influence of a wide stone grading on both the deformation of a breakwater trunk and the occurring longshore transport. This behaviour was investigated for both...conference paper 2012
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Vercruyssen, N. (author), Verhagen, T.G.A. (author), Flokstra, M.G. (author), Pekola, J.P. (author), Klapwijk, T.M. (author)We study the nonlinear response of current transport in a superconducting diffusive nanowire between normal reservoirs. We demonstrate theoretically and experimentally the existence of two different superconducting states appearing when the wire is driven out of equilibrium by an applied bias, called the global and bimodal superconducting states...journal article 2012
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Dorst, K. (author), Provoost, Y. (author), Verhagen, H.J. (author)A revetment of pattern placed elements, or a so called pitching, is used worldwide to protect shorelines and embankments. Also in The Netherlands more than 500 km of river, lake and sea dikes is protected by pitchings. Until the 60’s the design and construction of pitchings was based on experience. After the first damages on pitchings and the...conference paper 2012
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Verhagen, H.J. (author)Apart from many ecological advantages, mangroves in front of a coastal defence may lower the construction and maintenance costs of the defence. Although mangroves have hardly any reducing effect on water levels (and on tsunami impact) mangroves may significantly reduce wave attack on a coastal dike, and in this way reduce the cost of a revetment...conference paper 2012