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Guo, L. (author), Van der Wegen, M. (author), Roelvink, J.A. (author), He, Q. (author)Numerous research efforts have been devoted to understanding estuarine morphodynamics under tidal forcing. However, the impact of river discharge on estuarine morphodynamics is insufficiently examined. Inspired by the Yangtze Estuary, this work explores the morphodynamic impact of river discharge in a 560 km long tidal basin based on a 1-D model...journal article 2014
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- Stroeven, P. (author), He, H. (author), Le, L.B.N. (author), Li, K. (author) conference paper 2014
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He, Y. (author)Multistatic ultra-wideband radar is acknowledged to be useful for human tracking in indoor surveillance. In this thesis, a global signal processing chain for detection and localization of moving human targets using a multistatic ultra-wideband radar system is proposed. The design options for the system are presented, and the required signal...doctoral thesis 2014
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He, Y. (author), Aubry, P. (author), Le Chevalier, F. (author), Yarovoy, A. (author)A new approach is proposed to extract the slow-time feature of human motion in high-resolution radars. The approach is based on the self-similarity matrix (SSM) of the radar signals. The Mutual Information is used as a measure of similarity. The SSMs of different radar signals (high-resolution range profile, micro-Doppler, and range-Doppler...journal article 2014
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He, X. (author), Vuik, C. (author)In this report we explore the performance of the SIMPLER , augmented Lagrangian, ’grad-div’ preconditioners and their variants for the two-by-two block systems arising in the incompressible Navier-Stokes equations. The lid-driven cavity and flow over a finite flat plate are chosen as the benchmark problems. For each problem Reynolds number...report 2013
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He, X. (author), Neytcheva, M. (author), Vuik, C. (author)This paper deals with fast and reliable numerical solution methods for the incompressible non-Newtonian Navier-Stokes equations. To handle the nonlinearity of the governing equations, the Picard and Newton methods are used to linearize these coupled partial differential equations. For space discretization we use the finite element method and...report 2013
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He, Z. (author), Tian, H. (author), Deng, G. (author), Xu, Q. (author), Van Tendeloo, G. (author)The microstructure of the charge/orbital ordering Ruddleden-Popper phase PrCa2Mn2O7 was studied by transmission electron microscopy along both the [001] and the [110] orientation. Three coexisting charge/orbital ordering phases CO1, CO2, and CO3 were observed along the [001] orientation at room temperature. Different from the one-dimensional...journal article 2013
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Zhang, M. (author), He, Q. (author), Gong, J. (author)Composable modeling method has been a research hotpot in the area of Modeling and Simulation for a long time. In order to increase the reuse and interoperability of BOM based model, this paper put forward a composable modeling method based on BOM, studied on the basic theory of composable modeling method based on BOM, designed a general...conference paper 2013
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Stroeven, P. (author), He, H. (author)Loose random and dense random mono-size pacl<ing states were investigated by the discrete element modelling (DEM) for eight types of polyhedral grains, for ellipses with different aspect ratio, for cubes and for spheres. Focus was on density, sphericity of the grains and average value and frequency distribution of coordination number. The 3D...conference paper 2013
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He, J. (author)This paper intends to evaluate implementation of Shanghai Master Plan: 2001-2020 (01SHMP), which concerned peripheral development and urban restructuring.conference paper 2012
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Stroeven, P. (author), He, H. (author), Le, L.B.N. (author)Realistic simulation of particulate materials like concrete on meso- as well as micro-level is nowadays possible by fast developments in computer technology. This would be a more economic way than by physical experiinents, which are more time-consuming, laborious and thus expensive. This concern the production of the aggregate structure or of...conference paper 2012
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Liu, Y. (author), Weerts, A.H. (author), Clark, M. (author), Hendricks Franssen, H.J. (author), Kumar, S. (author), Moradkhani, H. (author), Seo, D.J. (author), Schwanenberg, D. (author), Smith, P. (author), Van Dijk, A.I.J.M. (author), Van Velzen, N. (author), He, M. (author), Lee, H. (author), Noh, S.J. (author), Rakovec, O. (author), Restrepo, P. (author)Data assimilation (DA) holds considerable potential for improving hydrologic predictions as demonstrated in numerous research studies. However, advances in hydrologic DA research have not been adequately or timely implemented in operational forecast systems to improve the skill of forecasts for better informed real-world decision making. This is...journal article 2012
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Stroeven, P. (author), He, H. (author)This paper presents some evidence of the impact of the Brazil nut effect (BNE) on concrete’s particulate structure on meso-level (aggregate) as well as on micro-level (cement paste). BNE is associated with long-range size segregation in particle mixtures due to vibration in slurry state of concrete, both near boundaries and in bulk. Presented...journal article 2012
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He, H. (author), Le, N.L.B. (author), Stroeven, P. (author)Experimental approaches in concrete technology are time-consuming, laborious and thus expensive. Developments in computer facilities render possible nowadays realistically simulating the particulate structure and microstructure of cementitious materials. For that purpose, discrete element methods (DEM) are required because of more correctly...journal article 2012
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He, Y. (author)Gashydraatvorming is een kristallisatieproces. Dit proces bestaat uit twee fases, respectievelijk nucleatie (de vorming van nucleatie kernen) en hydraatgroei (degroei van kleine nucleatiekernen tot grote hydraatkristallen). Deze twee fases van het kristallisatieproces worden in het binaire systeem gekenmerkt door de nucleatietijd en de...doctoral thesis 2012
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- Guo, R. (author), Li, L. (author), He, B. (author), Luo, P. (author), Ying, S. (author), Zhao, Z. (author), Jiang, R. (author) conference paper 2011
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- Van Dijk, N.H. (author), He, S. (author), Paladugu, M. (author), Schut, H. (author), Van der Zwaag, S. (author) conference paper 2011
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He, Y. (author), Chen, J.Y. (author), Knab, J.R. (author), Zheng, W. (author), Markelz, A.G. (author)We investigate the presence of structural collective motions on a picosecond timescale for the heme protein, cytochrome c, as a function of oxidation and hydration, using terahertz (THz) time domain spectroscopy and molecular dynamics simulations. The THz response dramatically increases with oxidation, with the largest increase for lowest...journal article 2011
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Ishihara, R. (author), Chen, T. (author), Van der Zwan, M. (author), He, M. (author), Schellevis, H. (author), Beenakker, K. (author)Existent flat-panel display is mechanically stiff because it requires external connection of IC chips. At its present stage, displays with a-Si, metal oxide semiconductor or organic TFTs require still external connection of data driver and controllers, because of their low carrier mobilities. We will review our recent progress on direct...conference paper 2011
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He, S.M. (author), Van Dijk, N.H. (author), Paladugu, M. (author), Schut, H. (author), Kohlbrecher, J. (author), Tichelaar, F.D. (author), Van der Zwaag, S. (author)We performed in situ time-resolved small-angle neutron scattering (SANS) measurements on high-purity Fe-Cu and Fe-Cu-B-N alloys during isothermal aging at 550 °C in order to study the potential self-healing of deformation-induced defects by nanosized Cu precipitation. Three different samples with 0%, 8%, and 24% prestrain were used to study the...journal article 2010