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- Oosterom, M. (author), Babuska, R. (author), Verbruggen, H.B. (author) journal article 2002
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Offermans, G.W.A. (author), Helwig, A.W.S. (author), Van Willigen, D. (author)Eurofix is an integrated navigation system, which combines Differential GNSS and Loran-C. The Loran-C system is used to provide differential corrections for the GNSS pseudo-range measurements and integrity information by additionally modulating the transmitted signals. This modulation, however, is not allowed to degrade normal Loran-C operations...journal article 1997
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- Van Mieghem, P. (author), Wang, H. (author) journal article 2009
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Roos, C. (author)We present an improved version of an infeasible interior-point method for linear optimization published in 2006. In the earlier version each iteration consisted of one so-called feasibility step and a few---at most three---centering steps. In this paper each iteration consists of only a feasibility step, whereas the iteration bound improves the...journal article 2015
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- Oosterlee, C.W. (author), Wesseling, P. (author) journal article 1993
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Alkemade, P.F.A. (author), Miro, H. (author), Van Veldhoven, E. (author), Maas, D.J. (author), Smith, D.A. (author), Rack, P.D. (author)The sub-nanometer beam of a helium ion microscope was used to study and optimize helium-ion beam induced deposition of PtC nanopillars with the (CH3)3Pt(CPCH3) precursor. The beam current, beam dwell time, precursor refresh time, and beam focus have been independently varied. Continuous beam exposure resulted in narrow but short pillars, while...journal article 2011
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Holmer, T. (author), Lukosch, S.G. (author), Kunz, V. (author)In this article, we address the problem of confusion and co-text-loss in chat communication, identify requirements for a solution, discuss related work and present a new approach for addressing co-text loss in text-based chats. We report about first experiences with our solution and give an outlook on future work directions. The core idea of our...journal article 2009
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Quist, W.J. (author)In this paper the decision process and the choice for specific types of natural stone for conservation purposes are investigated. Two successive 20th century conservation campaigns at the church of Our Lady in Breda are analyzed. It was specifically investigated in how far the architects involved took aspects of compatibility and durability of...journal article 2009
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- Jiang, J. (author), Kandachar, P.V. (author), Freudenthal, A. (author) journal article 2011
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Wiedenmann, J. (author), Bocquillon, E. (author), Deacon, R.S. (author), Hartinger, S. (author), Hermann, O. (author), Klapwijk, T.M. (author), Maier, L. (author), Ames, C. (author), Brüne, C. (author), Gould, C. (author), Oiwa, A. (author), Ishibashi, K. (author), Tarucha, S. (author), Buhmann, H. (author), Molenkamp, L.W. (author)The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological...journal article 2016
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Verhaar, T.M. (author), Wei, J. (author), Sarro, P.M. (author)In this paper, a process to realize metal lines on the sidewall of high aspect ratio cavities is developed. As an alternative to conventional photoresist, SU8 is used to define patterns on vertical sidewalls of deep cavities while maintaining compatibility with conventional IC processes. When transferring a pattern onto a 3D structure,...journal article 2009
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Odijk, T. (author)A theory is presented of the elongation of double-stranded DNA confined in a nanochannel based on a study of the formation of hairpins. A hairpin becomes constrained as it approaches the wall of a channel which leads to an entropic force causing the hairpin to tighten. The DNA in the hairpin remains double-stranded. The free energy of the...journal article 2006
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Balicas, L. (author), Analytis, J.G. (author), Jo, Y.J. (author), Storr, K. (author), Zandbergen, H. (author), Xin, Y. (author), Hussey, N.E. (author), Chou, F.C. (author), Lee, P.A. (author)Shubnikov–de Haas oscillations for two well-defined frequencies, corresponding, respectively, to areas of 0.8 and 1.36% of the first Brillouin zone, were observed in single crystals of Na0.3CoO2. The existence of Na superstructures in Na0.3CoO2, coupled with this observation, suggests the possibility that the periods are due to the...journal article 2006
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- Mosselman, N. (author), Gosselink, A.M. (author), Beijer, M. (author) journal article 2010
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Hellebrand, H. (author), Van den Bos, R. (author), Hoffmann, L. (author), Juilleret, J. (author), Krein, A. (author), Pfister, L. (author)Changes in spatio-temporal rainfall patterns have an effect on the hydrological behavior of river basins, the magnitude of the effects depending among others on the physiographic basin characteristics. To assess climate and discharge fluctuations, a visualization tool was developed as a contribution to exploratory data analysis. The tool...journal article 2008
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Dubbeling, D.J. (author)De MKBA is een belangrijk instrument om ruimtelijke ingrepen af te wegen. Ook kostenadviseurs hebben daar wel eens mee te maken. De gegevens op basis waarvan die afweging plaatsvindt, moeten echter wel actueel en volledig zijn. Dat blijkt bij MIRT-projecten het zwakke punt.journal article 2014
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Paravento, F. (author), Pourquie, M.J. (author), Boersma, B.J. (author)The need to predict flow and heat transfer problems requires a flexible and fast tool able to simulate complex geometries without increasing the complexity of the flow solver architecture. Here we use a finite volume code that uses a direct solver with pressure correction. A new immersed boundary method (IBM) is used for a geometry consisting of...journal article 2007
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Van der Pijl, S.P. (author), Oosterlee, C.W. (author)This work aims to model the optimal control of dike heights. The control problem leads to so-called Hamilton-Jacobi-Bellman (HJB) variational inequalities, where the dike-increase and reinforcement times act as input quantities to the control problem. The HJB equations are solved numerically with an Essentially Non-Oscillatory (ENO) method. The...journal article 2011
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Poelma, C. (author), Westerweel, J. (author), Ooms, G. (author)The effect of small particles on decaying grid-generated turbulence is studied experimentally. Using a two-camera system, instantaneous fluid-phase and particlephase measurements can be obtained simultaneously. The data obtained with this system are used to study the decay behaviour of the turbulent flow. The role of particle size, particle...journal article 2007
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Zwiers, M.D. (author), Kleinhans, R.J. (author), Van Ham, M. (author)There is increasing evidence that our societies are polarizing. Most studies focus on labour market and educational outcomes and show a socioeconomic polarization of the bottom and top ends of the population distribution. Processes of social polarization have a spatial dimension which should be visible in the changing mosaic of neighbourhoods in...journal article 2015