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Lantsoght, E.O.L. (author), van der Veen, C. (author), De Boer, Ane (author), van der Ham, Herbert (author)
In 1997, the Second Stichtse Bridge was built in the Netherlands using the balanced cantilever method. The use of high-strength concrete was proposed. At that time, the long-term behaviour of this material was not known, and no code provisions were applicable. Therefore, it was proposed to monitor the material behaviour and the deflections of...
journal article 2018
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De Boer, Lisanne L. (author), Bydlon, Torre M. (author), Van Duijnhoven, Frederieke (author), Vranken Peeters, Marie Jeanne T.F.D. (author), Loo, Claudette E. (author), Winter-Warnars, Gonneke A.O. (author), Sanders, Joyce (author), Sterenborg, Henricus J.C.M. (author), Hendriks, B.H.W. (author), Ruers, Theo J.M. (author)
Background: Breast cancer surgeons struggle with differentiating healthy tissue from cancer at the resection margin during surgery. We report on the feasibility of using diffuse reflectance spectroscopy (DRS) for real-time in vivo tissue characterization. Methods: Evaluating feasibility of the technology requires a setting in which...
journal article 2018
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Verhagen, W.J.C. (author), De Boer, Lennaert W.M. (author)
Unscheduled maintenance can contribute significantly to an airline's cost outlay. Reliability analysis can help to identify and plan for maintenance events. Reliability analysis in industry is often limited to statistically based approaches that incorporate failure times as the primary stochastic variable, with additional strict assumptions...
journal article 2018
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Lantsoght, E.O.L. (author), Yang, Y. (author), van der Veen, C. (author), Hordijk, D.A. (author), De Boer, Ane (author)
As the existing bridge stock is aging, improved assessment methods such as proof load testing become increasingly important. Proof load testing involves large loads, and as such the risk for the structure and personnel can be significant. To capture the structural response, extensive measurements are applied to proof load tests. Stop criteria,...
conference paper 2018
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Garming, M.W.H. (author), Weppelman, I.G.C. (author), De Boer, Pascal (author), Martínez, Felipe Perona (author), Schirhagl, Romana (author), Hoogenboom, J.P. (author), Moerland, R.J. (author)
Nanomaterials can be identified in high-resolution electron microscopy images using spectrally-selective cathodoluminescence. Capabilities for multiplex detection can however be limited, e.g., due to spectral overlap or availability of filters. Also, the available photon flux may be limited due to degradation under electron irradiation. Here,...
journal article 2017
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Scotuzzi, M. (author), Kuipers, Jeroen (author), Wensveen, D.I. (author), De Boer, Pascal (author), Hagen, C.W. (author), Hoogenboom, J.P. (author), Giepmans, Ben N.G. (author)
Cellular complexity is unraveled at nanometer resolution using electron microscopy (EM), but interpretation of macromolecular functionality is hampered by the difficulty in interpreting grey-scale images and the unidentified molecular content. We perform large-scale EM on mammalian tissue complemented with energy-dispersive X-ray analysis ...
journal article 2017
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van Wesenbeeck, B.K. (author), De Boer, W.B. (author), Narayan, Siddharth (author), van der Star, Wouter R L (author), de Vries, Mindert B. (author)
Adaptation planning for flood risk forms a significant part of global climate change response. Engineering responses to higher water levels can be prohibitively costly. Several recent studies emphasize the potential role of ecosystems in flood protection as adaptive risk reduction measures while also contributing to carbon fixation. Here, we...
journal article 2016
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Rijnsburger, S. (author), Van der Hout, C.M. (author), Van Tongeren, O. (author), De Boer, G.J. (author), Van Prooijen, B.C. (author), Borst, W.G. (author), Pietrzak, J.D. (author)
This study identifies and unravels the processes that lead to stratification and destratification in the far field of a Region of Freshwater Influence (ROFI). We present measurements that are novel for two reasons: (1) measurements were carried out with two vessels that sailed simultaneously over two cross-shore transects; (2) the measurements...
journal article 2016
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Lupi, T. (author), Van Megchelen, H. (author), Krens-Kluit, R. (author), De Boer, L. (author)
conference paper 2015
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Lupi, T. (author), Van Megchelen, H. (author), Krens-Kluit, R. (author), De Boer, L. (author)
conference paper 2015
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Passenier, D. (author), Sharpanskykh, A. (author), De Boer, R.J. (author)
In this paper we show that safety analysis using the STAMP causation model is limited in the extent to which it appreciates complex dynamics of safety. When the STAMP is applied as management tool, controls may be introduced too soon in the analysis since it is necessary to understand emergent behaviour first. Emergent behaviour can be studied...
conference paper 2015
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De Boer, A. (author), Hendriks, M.A.N. (author), Van der Veen, C. (author), Belletti, B. (author)
conference paper 2015
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Ensink, S.W.H. (author), Van der Veen, C. (author), De Boer, A. (author)
Experimental results of four shear tests on two large prestressed concrete beams are compared to nonlinear analysis and design code calculations. The beams have a length of 12 m and a depth of 1.3 m and are reinforced with stirrups and pre-tensioning. The four tests consist of a single point load at a distance of 2.7d from the support. A priori...
conference paper 2015
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Lantsoght, E.O.L. (author), Van der Veen, C. (author), De Boer, A. (author)
Slabs subjected to concentrated loads close to supports, as occurring for truck loads on slab bridges, are less studied than beams in shear or slab-column connections in punching. To predict the shear capacity for this case, the Bond Model for concentric punching shear was studied initially. Modifications to this model resulted in the Modified...
conference paper 2015
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Brink, E. (author), Gerber, M. (author), De Boer, A. (author), Van der Geest, M. (author), Zeilstra, D. (author)
Starter/generator units based on PM machines are generally not considered due to their inherent safety risks. This technology can, however, prove advantageous for aerospace applications where mass, volume, efficiency and low maintenance costs play a significant role. A safety analysis is performed in order to identify the safety and mitigation...
conference paper 2015
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Snik, F. (author), Rietjens, J.H.H. (author), Apituley, A. (author), Volten, H. (author), Mijling, B. (author), Di Noia, A. (author), Heikamp, S. (author), Heinsbroek, R.C. (author), Hasekamp, O.P. (author), Smit, J.M. (author), Vonk, J. (author), Stam, D.M. (author), Van Harten, G. (author), De Boer, J. (author), Keller, C.U. (author)
To assess the impact of atmospheric aerosols on health, climate, and air traffic, aerosol properties must be measured with fine spatial and temporal sampling. This can be achieved by actively involving citizens and the technology they own to form an atmospheric measurement network. We establish this new measurement strategy by developing and...
journal article 2014
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Lantsoght, E.O.L. (author), Van der Veen, C. (author), De Boer, A. (author)
The shear problem is typically studied by testing small, heavily reinforced, slender beams subjected to concentrated loads, resulting in a beam shear failure, or by testing slab-column connections, resulting in a punching shear failure. Slabs subjected to concentrated loads close to supports, as occurring when truck loads are placed on slab...
conference paper 2014
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Lantsoght, E.O.L. (author), Van der Veen, C. (author), De Boer, A. (author)
For an initial design or assessment of a reinforced concrete solid slab bridge, spreadsheet-based or hand calculations are typically used. The shear stress is compared to the shear capacity as prescribed by the code. The distributed loads result in a uniform shear stress at the support. Concentrated loads are less straightforward to take into...
conference paper 2014
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Ullien, D. (author), Harmsma, P.J. (author), Abdulla, S.M.C. (author), De Boer, B.M. (author), Bosma, D. (author), Sudhölter, E.J.R. (author), De Smet, L.C.P.M. (author), Jager, W.F. (author)
Silicon optical microring resonators (MRRs) are sensitive devices that can be used for biosensing. We present a novel biosensing platform based on the application of polyelectrolyte (PE) layers on such MRRs. The top PE layer was covalently labeled with biotin to ensure binding sites for antibodies via a streptavidin-biotin binding scheme....
journal article 2014
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Scheel, F. (author), De Boer, W.P. (author), Brinkman, R. (author), Luijendijk, A.P. (author), Ranasinghe, R.W.M.R.J.B. (author)
A variety of uncertainty sources are inherent in process-based morphodynamic modelling applications. There is an increasing demand for the quantification of these uncertainties. This contribution introduces a probabilistic-morphodynamic (PM) modelling framework that enables this quantification. The PM modelling framework provides a systematic...
conference paper 2014
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