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Mouri Sardarabadi, A. (author), van der Veen, A.J. (author)Many subspace-based array signal processing algorithms assume that the noise is spatially white. In this case, the noise covariance matrix is a multiple of the identity and the eigenvectors of the data covariance matrix are not affected by it. If the noise covariance is an unknown arbitrary diagonal (e.g., for an uncalibrated array), the...journal article 2018
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Markey, Karen (author), Krüger, Martin (author), Seidler, Tomasz (author), Reinsch, Helge (author), Verbiest, Thierry (author), De Vos, Dirk E. (author), Champagne, Benoît (author), Stock, Norbert (author), van der Veen, M.A. (author)p-Nitroaniline presents the typical motif of a second-order nonlinear optically (NLO) active molecule. However, because of its crystallization in an antiparallel and hence centrosymmetric structure, the NLO activity is lost. In this contribution, the p-nitroaniline motif was built successfully into the MIL-53 metal-organic framework. More...journal article 2017
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Papma, Janne M. (author), Smits, Marion (author), De Groot, Marius (author), Mattace-Raso, Francesco U. S. (author), van der Lugt, Aad (author), Vrooman, Henri A. (author), Niessen, W.J. (author), Koudstaal, Peter J. (author), van Swieten, John C. (author), van der Veen, Frederik M. (author), Prins, Niels D. (author)Objectives: Diminished function of the posterior cingulate cortex (PCC) is a typical finding in early Alzheimer’s disease (AD). It is hypothesized that in early stage AD, PCC functioning relates to or reflects hippocampal dysfunction or atrophy. The aim of this study was to examine the relationship between hippocampus function, volume and...journal article 2017
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Lantsoght, E.O.L. (author), van der Veen, C. (author), de Boer, A (author)The loads that are used for the assessment of existing reinforced concrete slab bridges are the self-weight, superimposed loads, and distributed and concentrated live loads. As such, the shear capacity of reinforced concrete slabs under a combination of distributed and concentrated live loads is a topic of practical relevance. For slabs...journal article 2017
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Garcia Santaclara, J. (author), Olivos Suarez, A.I. (author), du Fossé, Indy (author), Houtepen, A.J. (author), Hunger, J (author), Kapteijn, F. (author), Gascon, Jorge (author), van der Veen, M.A. (author)The highly porous titanium based metal–organic framework NH2-MIL-125(Ti) has recently attracted significant attention in the field of photocatalysis as a promising material for H+ reduction. This work reveals charge transfer upon visible light illumination from this MOF to two different charge acceptors, as an alternative to sacrificial electron...journal article 2017
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Garcia Santaclara, J. (author), Kapteijn, F. (author), Gascon, Jorge (author), van der Veen, M.A. (author)The fascinating chemical and physical properties of MOFs have recently stimulated exploration of their application for photocatalysis. Despite the intense research effort, the efficiency of most photocatalytic MOFs for solar fuel generation is still very modest. In this highlight we analyse the current status of the field and stress the...journal article 2017
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Lantsoght, E.O.L. (author), Yang, Y. (author), van der Veen, C. (author), de Boer, A. (author), Hordijk, D.A. (author)Loading protocols and acceptance criteria are available in the literature for load tests on buildings. For bridges, proof load tests are interesting when crucial information about the structure is missing, or when the uncertainties about the structural response are large. The acceptance criteria can then be applied to evaluate if further loading...journal article 2017
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Lantsoght, E.O.L. (author), de Boer, A. (author), van der Veen, C. (author)Existing reinforced concrete solid slab bridges in the Netherlands are re-assessed for shear based on a Unity Check: the ratio of the shear stress caused by the applied loads to the shear capacity of the concrete cross-section. The governing shear stress resulting from the self-weight, weight of the wearing surface, distributed and concentrated...journal article 2017
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Lantsoght, E.O.L. (author), van der Veen, C. (author), de Boer, A. (author), Hordijk, D.A. (author)Proof load testing is part of the engineering practice, and can be particularly useful for the rating of existing bridges. This paper addresses how reliability-based concepts can be used in combination with proof load testing, and discusses how this approach differs from the current practice for proof load testing. Whereas the calculation...journal article 2017
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Lantsoght, E.O.L. (author), van der Veen, C. (author), de Boer, A. (author), Hordijk, D.A. (author)Load testing of bridges is a practice that is as old as their construction. In the past, load testing gave the traveling public a feeling that a newly opened bridge is safe. Nowadays, the bridge stock in many countries is aging, and load testing is used for the assessment of existing bridges. This paper aims at giving an overview of the current...journal article 2017
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Lantsoght, E.O.L. (author), van der Veen, C. (author), Hordijk, D.A. (author), de Boer, A. (author)As the bridge stock in the Netherlands and Europe is ageing, various methods to analyze existing bridges are being studied. Proof load testing of bridges is an option to experimentally demonstrate that a given bridge can carry the prescribed live loads. Based on extensive research on proof load testing of reinforced concrete slab bridges carried...journal article 2017
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van der Veen, G.J. (author), Langelaar, Matthijs (author), van der Meulen, Stan (author), Laro, Dick (author), Aangenent, Wouter (author), van Keulen, A. (author)In pursuit of better accuracy, higher speed and larger scale, manufacturers of high-performance devices increasingly rely on components which have been designed with a multidisciplinary approach from the outset. In the context of motion systems, this means that for instance structural mechanics, control engineering and thermal analysis are...journal article 2017
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Lantsoght, E.O.L. (author), Koekkoek, R.T. (author), van der Veen, C. (author), Hordijk, D.A. (author), de Boer, A. (author)For existing bridges, proof-load testing can be a suitable assessment method. This paper addresses the evaluation of a posted reinforced concrete slab bridge over a highway through proof-load testing, detailing the preparation, execution, and analysis of the test. As the target proof-load and the required measurements for proof-load testing...journal article 2017
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Schäfer, P. (author), Kapteijn, F. (author), van der Veen, M.A. (author), Domke, Katrin F. (author)The room temperature growth kinetics of the commonly studied metal-organic framework CuBTC (HKUST-1) is investigated with UV/vis absorption spectroscopy. Contrary to chemical intuition, increased concentrations of the BTC ligand slows down the formation of CuBTC. Based on the time-resolved experimental data, a kinetic model is proposed for...journal article 2017
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van der Veen, R.A.C. (author), Kisjes, K.H. (author), Nikolic, I. (author)The shift to markets based on servicising, i.e. market-level transitions from product-based to service-based production and consumption patterns, may contribute to achieve absolute decoupling, i.e. the combined development of economic growth and environmental impact reduction. However, the potential of this contribution is largely unknown. In...journal article 2017
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Gupta, D.K. (author), van der Veen, G.J. (author), Aragon, A.M. (author), Langelaar, Matthijs (author), van Keulen, A. (author)Topology optimization formulations using multiple design variables per finite element have been proposed to improve the design resolution. This paper discusses the relation between the number of design variables per element and the order of the elements used for analysis. We derive that beyond a maximum number of design variables, certain sets...journal article 2017
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Salameh, S. (author), van der Veen, M.A. (author), Kappl, Michael (author), van Ommen, J.R. (author)In this work we present a comprehensive experimental study to determine the contact forces between individual metal oxide nanoparticles in the gas-phase using atomic force microscopy. In addition, we determined the amount of physisorbed water for each type of particle surface. By comparing our results with mathematical models of the...journal article 2017
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Fröhlich, D. (author), Pantatosaki, E. (author), Kolokathis, P.D. (author), Markey, K (author), Reinsch, H. (author), Baumgartner, M. (author), van der Veen, M.A. (author), De Vos, D.E. (author), Stock, N (author), Papadopoulos, G.K. (author), Henninger, S.K. (author), Janiak, C. (author)Aluminium isophthalate CAU-10-H [Al(OH)(benzene-1,3-dicarboxylate)]·nH2O exhibits water adsorption characteristics which make it a promising adsorbent for application in heat-exchange processes. Herein we prepared a stable coating of this MOF and evaluated its long-term stability under closed-cycle conditions for 10 000 water adsorption and...journal article 2016
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Nasalevich, M. (author), Hendon, Christopher H. (author), Garcia Santaclara, J. (author), Svane, Katrine (author), van der Linden, B. (author), Veber, Sergey L. (author), Fedin, Matvey V. (author), Houtepen, A.J. (author), van der Veen, M.A. (author), Kapteijn, F. (author), Walsh, Aron (author), Gascon, Jorge (author)Metal-organic frameworks (MOFs) containing d<sup>0</sup> metals such as NH<sub>2</sub>-MIL-125(Ti), NH<sub>2</sub>-UiO-66(Zr) and NH<sub>2</sub>-UiO-66(Hf) are among the most studied MOFs for photocatalytic applications. Despite structural similarities, we demonstrate that the electronic properties of these MOFs are markedly different. As...journal article 2016
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Lantsoght, E.O.L. (author), van der Veen, C. (author), de Boer, A (author), Hordijk, D.A. (author)In the Netherlands, the shear capacity of a large number of existing reinforced concrete solid slab bridges is subject to discussion, as initial assessments indicated that their capacity was insufficient. In certain cases, the deterministic value of the moment capacity is larger than the deterministic value of the shear capacity. However, when...journal article 2016