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Vimalakanthan, K. (author), van der Mijle Meijer, H. (author), Bakhmet, I. (author), Schepers, J.G. (author)Leading edge erosion (LEE) is one of the most critical degradation mechanisms that occur with wind turbine blades (WTBs), generally starting from the tip section of the blade. A detailed understanding of the LEE process and the impact on aerodynamic performance due to the damaged leading edge (LE) is required to select the most appropriate...article 2023
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Koodly Ravishankara, A. (author), van der Weide, E. (author)Wind turbines are being installed in a wide array of offshore locations and are exposed to environmental condition during their operational lifetime. Rain, hailstones and accumulation of dust and insects can lead to turbine blades being eroded and contaminated. In this study, the effect of leading edge erosion on wind turbine blade performance...conference paper 2022
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Shankar Verma, A. (author), Jiang, Z. (author), Caboni, M. (author), Verhoef, J.P. (author), van der Mijle Meijer, H.J. (author), Castro, S.G.P. (author), Teuwen, J.J.E. (author)Rain-induced leading-edge erosion of wind turbine blades is associated with high repair and mainte nance costs. For efficient operation and maintenance, erosion models are required that provide estimates of blade coating lifetime at a real scale. In this study, a statistical rainfall model is established that de scribes probabilistic...article 2022
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- Chen, H. (author), Wang, X. (author), Lu, H. (author), van Balen, R.T. (author) article 2021
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Koodly Ravishankara, A. (author), Özdemir, H. (author), van der Weide, E. (author)The surface of wind turbine blades are prone to degradation due to exposure to the elements. Rain, hail, insects are among the many causes of turbine blade degradation or erosion. Surface degradation of the wind turbine blades leads to a reduction in the aerodynamic performance, resulting in power losses. The effect of surface degradation is...article 2021
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Shankar Verma, A. (author), Jiang, Z. (author), Ren, Z. (author), Caboni, M. (author), Verhoef, H. (author), van der Mijle-Meijer, H. (author), Castro, S.G.P. (author), Teuwen J.J.E., (author)Rain-induced leading-edge erosion (LEE) of wind turbine blades (WTBs) is associated with high repair and maintenance costs. The effects of LEE can be triggered in less than 1 to 2 years for some wind turbine sites, whereas it may take several years for others. In addition, the growth of erosion may also differ for different blades and turbines...article 2021
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Verploegen, V.J.N. (author), Schuller, A.A. (author)Objectives The aim of this study was to learn more about levels of knowledge relating to erosive tooth wear and about the most desirable way of disseminating dental information among young adults. Methods The research was a cross-sectional study of 331 young adults (20–25 years old) attending 25 dental care practices. Participants were asked to...article 2019
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Slot, H.M. (author), IJzerman, R.M. (author), le Feber, M. (author), Nord-Varhaug, K. (author), van der Heide, E. (author)Offshore wind turbine rotor diameters still increase. Blade tip velocities are up to 110 m/s, giving rise to more severe raindrop impact conditions and related erosion of the wind turbine blades. In the current work droplet impingement erosion tests were performed for injection moulded and compression moulded polybutylene terephthalate PBT. The...article 2018
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Sanders, J. (author), Dorenbosch, L. (author), Blonk, R. (author)This contribution aims to provide a framework for viewing the fragility of employability and potentially fruitful routes for making employability more sustainable. A second goal, is to inspire readers with examples from the Netherlands, to create and test promising interventions, so that a broad set of effective interventions becomes available...bookPart 2015
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Slot, H.M. (author), Gelinck, E.R.M. (author), Rentrop, C. (author), van der Heide, E. (author)Erosion of the leading edge of wind turbine blades by droplet impingement wear, reduces blade aerodynamic efficiency and power output. Eventually, it compromises the integrity of blade surfaces. Elastomeric coatings are currently used for erosion resistance, yet the life of such coatings cannot be predicted accurately. This review paper gives an...article 2015
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Pereira, L. (author), Weerheijm, J. (author), Sluys, L.J. (author)The development of realistic numerical tools to efficiently model the response of concrete structures subjected to close-in detonations and high velocity impacts has been one of the major quests in defense research. Under these loading conditions, quasi-brittle materials undergo a multitude of failure (damage) mechanisms. Dynamic tensile failure...conference paper 2015
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Schweckendiek, T. (author), Vrouwenvelder, A.C.W.M. (author), Calle, E.O.F. (author)Flood defenses are crucial elements in flood risk mitigation in developed countries, especially in deltaic areas. In the Netherlands, the VNK2 project is currently analyzing the reliability of all primary flood defenses as part of a nationwide flood risk analysis. In this project, as in most other reliability analyses of flood defenses, prior...article 2014
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Schweckendiek, T. (author), Vrouwenvelder, A.C.W.M. (author)Flood defence levees are crucial for flood protection, especially in riverine and deltaic areas. One of the most critical failure modes of levees is backwards internal erosion or piping. Piping reliability is largely influenced by uncertainties in ground conditions, especially by geohydrological properties such as the hydraulic conductivity of...article 2013
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Varas, J.M. (author), Soetens, F. (author)The effect of a blast explosion on a typical steel frame building is investigated by means of computer simulations. The simulations help to identify possible hot spots that may lead to local or global failure. The blast energy is transferred to the structure by means of the façade. In particular attention is paid to the modelling of the façade...conference paper 2010
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Waller, R.I. (author), van Dijk, T. (author), Knudson, O. (author), TNO Bouw en Ondergrond (author)Much previous research at surge-type glaciers has sought to identify features diagnostic of surge-type behaviour. However, in comparatively little work have subglacial landform-sediment characteristics been used to reconstruct changing basal processes and conditions during surge events. Subglacial bedforms described in this article are...article 2008
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Ainola, M. (author), Valleala, H. (author), Nykänen, P. (author), Risteli, J. (author), Hanemaaijer, R. (author), Konttinen, Y.T. (author), TNO Kwaliteit van Leven (author)Objective. The excellent poster painter Henri de Toulouse-Lautrec is the most famous patient with cathepsin K-deficient pycnodysostosis. Cathepsin K is believed to play a major role in osteoclast-driven bone resorption. In this study we explored the role of cathepsin K in bone resorption in a patient with a cathepsin K mutation causing...article 2008
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Nelskamp, S. (author), David, P. (author), Littke, R. (author), TNO Bouw en Ondergrond (author)Sedimentary basins in The Netherlands contain significant amounts of hydrocarbon resources, which developed in response to temperature and pressure history during Mesozoic and Cenozoic times. Quantification and modelling of burial, maturity and temperature histories are the major goals of this study, allowing for a better understanding of the...article 2008
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Nijland, T.G. (author), Dubelaar, C.W. (author), Tolboom, H.J. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author)Most of the Netherlands a Quaternary delta, local supplies of natural stone suitable for building are rare. These include: Quaternary bog iron ores used in early medieval times (until c. 1200); erratics, deposited in boulder clay during the Saalian ice age in the northern Netherlands and gravel from the river Meuse; Miocene lithified siliceous...conference paper 2006
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- Nijland, T.G. (author), Dubelaar, C.W. (author), Tolboom, H.J. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author) conference paper 2006
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Hordijk, A.C. (author), Leurs, O. (author), TNO Defensie en Veiligheid (author)The research department Energetic Materials within TNO Defence, Security and Safety is involved in the development and (safety and insensitive munitions) testing of conventional (nitro cellulose based) and thermoplastic elastomer (TPE) based gun propellants. Recently our testing capabilities have been extended with vented vessel tests in order...conference paper 2006
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