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Sprakel, J. (author), Van der Gucht, J. (author), Cohen Stuart, M.A. (author), Besseling, N.A.M. (author)We discuss the thermal motion of colloidal particles in transient polymer networks. For particles that are physically bound to the surrounding chains, light-scattering experiments reveal that the submillisecond dynamics changes from diffusive to Rouse-like upon crossing the network formation threshold. Particles that are not bound do not show...journal article 2008
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Van Hijkoop, V.J. (author), Dammers, A.J. (author), Malek, K. (author), Coppens, M.O. (author)Water diffusion through OmpF, a porin in the outer membrane of Escherichia coli, is studied by molecular dynamics simulation. A first passage time approach allows characterizing the diffusive properties of a well-defined region of this channel. A carbon nanotube, which is considerably more homogeneous, serves as a model to validate the...journal article 2007
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Polder, R.B. (author)A review is given of research on the durability performance of concrete made with blast furnace slag and fly ash related to chloride induced reinforcement corrosion, carried out in the Netherlands, where slag has been used in cement for almost a century. Results are presented from field studies on concrete in marine environment and laboratory...journal article 2012
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Huang, R.W.J.M. (author), Chung, F. (author), Kelder, E.M. (author)We present a semimathematical model for the simulation of the impedance spectra of a rechargeable lithium batteries consisting of porous electrodes with spherical Li+ intercalation particles. The particles are considered to have two distinct homogeneous phases as a result of the intercalation and deintercalation of Li+ during charge and...journal article 2006
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Prinsen, P. (author), Odijk, T. (author)A theory is presented for ?C, the coefficient of the first-order correction in the density of the collective diffusion coefficient, for protein spheres interacting by electrostatic and adhesive forces. An extensive numerical analysis of the Stokesian hydrodynamics of two moving spheres is given so as to gauge the precise impact of lubrication...journal article 2007
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Janssen, M.F.W.H.A. (author), Charalabidis, Y. (author), Zuiderwijk, A.M.G. (author)Although a significant number of public organizations have embraced the idea of open data, many are still reluctant to do this. One root cause is that the publicizing of data represents a shift from a closed to an open system of governance, which has a significant impact upon the relationships between public agencies and the users of open data....journal article 2012
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Colombi, G. (author), De Krom, Tom (author), Chaykina, D. (author), Cornelius, S. (author), Eijt, S.W.H. (author), Dam, B. (author)Rare-earth oxyhydride REOxH3-2x thin films prepared by air-oxidation of reactively sputtered REH2 dihydrides show a color-neutral, reversible photochromic effect at ambient conditions. The present work shows that the O/H anion ratio, as well as the choice of the cation, allow to largely tune the extent of the optical change and its speed. The...journal article 2021
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Farooq, U. (author), Heuer, Sönke (author), Teuwen, Julie J.E. (author), Dransfeld, C.A. (author)Epoxies are inherently brittle materials and to overcome this brittleness, a second microphase (i.e., thermoplastic) is typically added. This modification of epoxy resin using thermoplastics results in reaction-induced phase separating morphologies in the micrometer range. In this study, the influence of the curing history, beyond phase...journal article 2021
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Wang, H. (author), Apostolidis, P. (author), Zhu, Jiqing (author), Liu, X. (author), Scarpas, Athanasios (author), Erkens, S. (author)Waste tire rubber has been incorporated into asphalt modification for decades due to its various benefits. There are two main mechanisms during bitumen–rubber interaction: rubber swelling and chemical degradation. This study surveys these two processes from the viewpoint of polymer science. The kinetics of rubber dissolution and...journal article 2020
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van den Berg, L. (author), Kirkland, Catherine M. (author), Seymour, Joseph D. (author), Codd, Sarah L. (author), van Loosdrecht, Mark C.M. (author), de Kreuk, M.K. (author)Aerobic granular sludge (AGS) technology allows simultaneous nitrogen, phosphorus, and carbon removal in compact wastewater treatment processes. To operate, design, and model AGS reactors, it is essential to properly understand the diffusive transport within the granules. In this study, diffusive mass transfer within full-scale and lab-scale...journal article 2020
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Oenema, Jogchum (author), Harmel, Justine (author), Vélez, Roxana Pérez (author), Meijerink, Mark J. (author), Eijsvogel, Willem (author), Poursaeidesfahani, A. (author), Vlugt, T.J.H. (author), Zečević, Jovana (author), De Jong, Krijn P. (author)In this study, Pt nanoparticles on zeolite/γ-Al2O3 composites (50/50 wt) were located either in the zeolite or on the γ-Al2O3 binder, hereby varying the average distance (intimacy) between zeolite acid sites and metal sites from "closest"to "nanoscale". The catalytic performance of these catalysts was compared to physical mixtures of zeolite...journal article 2020
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Pathak, Royal (author), Spezzano, Francesca (author), Pera, M.S. (author)Social networks are a platform for individuals and organizations to connect with each other and inform, advertise, spread ideas, and ultimately influence opinions. These platforms have been known to propel misinformation. We argue that this could be compounded by the recommender algorithms that these platforms use to suggest items potentially...journal article 2023
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Bracco Garcia, M.P. (author), Torrelo Villa, G. (author), Noordam, Sander (author), de Jong, Glenn (author), Hanefeld, U. (author)The hydroxynitrile lyase from Prunus amygdalus was immobilized on Celite R-633. The immobilized enzyme could successfully be utilized in buffer saturated MTBE and excellent conversions of benzaldehyde to R-mandelonitrile were observed. No leaching occurred. To achieve high enantioselectivities, the suppression of the undesired background...journal article 2018
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de Klerk, N.J.J. (author), van der Maas, E.L. (author), Wagemaker, M. (author)Molecular dynamics simulations are a powerful tool to study diffusion processes in battery electrolyte andelectrode materials. From molecular dynamics simulations, manyproperties relevant to diffusion can be obtained, including the<br/>diffusion path, amplitude of vibrations, jump rates, radial distribution functions, and collective diffusion...journal article 2018
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Gernat, D.C. (author), Rozenbroek, Renzo (author), Brouwer, Eric R. (author), van der Wielen, L.A.M. (author), Ottens, M. (author)BACKGROUND: Recently, a new process concept has been proposed to selectively adsorb wort off-flavours, i.e. aldehydes, from alcohol-free beers with hydrophobic zeolites. RESULTS: In this work, we investigated the uptake of a mixture of wort flavour compounds (2-methylpropanal, 2-methylbutanal, 3-methylbutanal, furfural, and methional), from a...journal article 2020
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Vermolen, F.J. (author), Vuik, C. (author), Van der Zwaag, S. (author)This paper is a review of a suite of mathematical models of increasing complexity on particle dissolution in metallic alloys. This work deals with models for multi-component particle dissolution in multi-component alloys, where various chemical species diffuse simultaneously, and a two-dimensional model incorporating interfacial reactions as in...report 2002
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Vreugdenhil, C.B. (author)Internal memo. In the numerical solution of convection-diffusion equations a difficulty is commonly met in the occurrence of "standing waves" or spatial oscillations of a numerical origin. This has given rise to a considerable number of methods designed to avoid oscillations, often by means of upstream differencing or a similar approach in...report 1982
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Hoffmans, G.J.C.M. (author)The general purpose of this research project is to model mathematically the scour-hole downstream of a structure (2-D). The model has to simulate the development of the scour as a function of time. Basically two models are necessary namely a flow model and a morphological model. The latter has to describe the bed- and suspended load and the...report 1988
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Vermolen, F.J. (author), Vuik, C. (author), Van der Zwaag, S. (author)A general model for the dissolution of stoichiometric particles in multi-component alloys is proposed and analysed. We introduce the concept of mass-conserving solutions and give a self-similar solution for the resulting Stefan-problem. Furthermore, we show that particle dissolution in multi-component alloys can under certain circumstances be...report 2001
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Kranenburg, C. (author)Mixing across a stable density interface caused by a shear stress externally acting on a two-layer fluid initially at rest is modelled using the turbulent-diffusion concept. The influence of a (relatively weak) longitudinal pressure gradient is also considered. The central point of view developed is that the mixed layer can be only weakly...report 1979