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Molter, Edward M. (author), de Pater, I. (author), Luszcz-Cook, Statia (author), Tollefson, Joshua (author), Sault, Robert J. (author), Butler, Bryan (author), De Boer, David (author)We present Atacama Large Millimeter/submillimeter Array (ALMA) and Very Large Array (VLA) spatial maps of the Uranian atmosphere taken between 2015 and 2018 at wavelengths from 1.3 mm to 10 cm, probing pressures from ~1 to ~50 bar at spatial resolutions from 0 1 to 0 8. Radiative transfer modeling was performed to determine the physical...journal article 2021
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De Boer, J. (author), Langlois, M. (author), Van Holstein, R. G. (author), Girard, J. H. (author), Mouillet, D. (author), Vigan, A. (author), Dohlen, K. (author), Snik, F. (author), Stam, D.M. (author)Context. Polarimetric imaging is one of the most effective techniques for high-contrast imaging and for the characterization of protoplanetary disks, and it has the potential of becoming instrumental in the characterization of exoplanets. The Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) instrument installed on the Very Large...journal article 2020
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De Boer, Lisanne L. (author), Kho, Esther (author), Józwiak, Katarzyna (author), Van De Vijver, Koen K. (author), Vrancken Peeters, Marie Jeanne T.F.D. (author), Van Duijnhoven, Frederieke (author), Hendriks, B.H.W. (author), Sterenborg, Henricus J.C.M. (author), Ruers, Theo J.M. (author)Diffuse reflectance spectroscopy (DRS) can discriminate different tissue types based on optical characteristics. Since this technology has the ability to detect tumor tissue, several groups have proposed to use DRS for margin assessment during breast-conserving surgery for breast cancer. Nowadays, an increasing number of patients with breast...journal article 2019
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Lantsoght, E.O.L. (author), De Boer, Ane (author), van der Veen, C. (author), Hordijk, D.A. (author)Proof load testing of existing reinforced concrete bridges is becoming increasingly important as the current bridge stock is aging. In a proof load test, a load that corresponds to the factored live load is applied to a bridge structure, to directly demonstrate that a bridge fulfills the code requirements. To optimize the procedures used in...journal article 2019
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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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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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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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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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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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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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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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Sammak, A. (author), Aminian, M. (author), Qi, L. (author), De Boer, W.B. (author), Charbon, E. (author), Nanver, L.K. (author)The selective epitaxial growth of Ge-on-Si followed by in-situ deposition of a nm-thin Ga/B layer stack (PureGaB) has previously been shown to be a robust CMOS-compatible process for fabrication of Ge-on-Si photodiodes. In this paper, strategies to improve the control and reproducibility of PureGaB Ge-on-Si photodiode fabrication by reducing the...journal article 2014
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Mohammadi, V. (author), De Boer, W.B. (author), Scholtes, T.L.M. (author), Nanver, L.K. (author)In this paper, an analytical model is established to describe the deposition kinetics and the deposition chamber characteristics that determine the deposition rates of PureB-layers grown by chemical-vapor deposition (CVD) from diborane (B2H6) as gas source on a non-rotating silicon wafer. The model takes into consideration the diffusion...journal article 2013
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Mohammadi, V. (author), De Boer, W.B. (author), Scholtes, T.L.M. (author), Nanver, L.K. (author)In this paper, an analytical model is established to describe the deposition kinetics and the deposition chamber characteristics that determine the deposition rates of PureB-layers grown by chemicalvapor deposition (CVD) from diborane (B2H6) as gas source on a non-rotating silicon wafer. The model takes into consideration the diffusion mechanism...journal article 2013
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Lantsoght, E.O.L. (author), Van der Veen, C. (author), Walraven, J.C. (author), De Boer, A. (author)Upon assessment of existing reinforced concrete short-span solid slab bridges according to the recently implemented Eurocodes that include more conservative shear capacity provisions and heavier axle loads, a number of these structures were found to be shear-critical. The results from recent experimental research on the shear capacity of slabs...journal article 2013
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Sammak, A. (author), De Boer, W.B. (author), Nanver, L.K. (author)A standard Si/SiGe ASM CVD reactor that was recently modified for merging GaAs and Si epitaxial growth in one system is utilized to achieve intrinsic and doped epitaxial Ge-on-Si with low threading dislocation and defect densities. For this purpose, the system is equipped with 2% diluted GeH4 as the main precursor gas for Ge deposition; and 0.7%...journal article 2012
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Mohammadi, V. (author), De Boer, W.B. (author), Scholtes, T.L.M. (author), Nanver, L.K. (author)The so-called local-loading effect is studied for pure boron (PureB) depositions from B2H6 in a chemical-vapor deposition (CVD) reactor. This effect occurs because the boron is not deposited on oxide and this increases the deposition rate (DR) of boron in open Si areas in the oxide. Experiments are performed for wide range of local-oxide ratio ...journal article 2012
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Nanver, L.K. (author), Sammak, A. (author), Mohammadi, V. (author), Mok, K.R.C. (author), Qi, L. (author), Sakic, A. (author), Golshani, N. (author), Darakhshandeh, J. (author), Scholtes, T.M.L. (author), De Boer, W.B. (author)Envisioning wide future relevance, work is reviewed here on the pure dopant deposition of boron (PureB), gallium (PureGa) and the combination of the two (PureGaB), as used in the fabrication of nanometer shallow p+n Si and/or Ge diodes. Focus is placed on the special properties that have put these diodes in a class apart: their ideal electrical...journal article 2012
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Steenbergen, R.D.J.M. (author), De Boer, A. (author), Van der Veen, C. (author)The assessment of the structural safety of existing bridges and viaducts becomes increasingly important in many countries due to the age of the structures and an increase in traffic loads. Many structures need to be reassessed in order to find out whether the safety requirements are met. Most existing standards, however, are developed for the...journal article 2012