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Liu, H. (author), Tang, G. (author), Imparato, D. (author), Cui, H. (author), Song, B. (author), Rizos, C. (author)Multi-GNSS networks, for example M-GEX and iGMAS, are set up and grow quickly with the development of new navigation systems and multi-GNSS receivers. It is unavoidable that GNSS signals are deteriorated by several error sources. Thus GNSS network operators, data users and receiver designers all require data quality checking (QC). However, few...conference paper 2014
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Abrahamsen, A.B. (author), Magnusson, N. (author), Liu, D. (author), Stehouwer, E. (author), Hendriks, B. (author), Polinder, H. (author)A superconducting direct drive generator based on field windings of MgB2 superconducting tape is proposed as a solution by mounting the generator in front of the blades using a king-pin nacelle design for offshore turbines with power ratings larger than 10 MW as investigated in the INNWIND.EU project.conference paper 2014
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Liu, X. (author), Tzimiris, G. (author), Scarpas, T. (author), Hofman, R. (author), Voskuilen, J. (author)In order to adequately characterize the fatigue response of the various membranes with surrounding multilayer surfacing layers on orthotropic steel decks and collect the necessary parameters for FE modeling, the details of the cyclic Membrane Adhesion Tester (MAT) are introduced. The fatigue damage in membrane interface is related to the amount...conference paper 2014
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Abrahamsen, A.B. (author), Magnusson, N. (author), Jensen, B.B. (author), Liu, D. (author), Polinder, H. (author)An MgB2 race track coil intended for demonstrating a down scaled pole of a 10 MW direct drive wind turbine generator has been designed. The coil consists of 10 double pancake coils stacked into a race track coil with a cross section of 84 mm x 80 mm. The length of the straight section is 0.5 m and the diameter of the end sections is 0.3 m....conference paper 2014
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Liu, L. (author), Zlatanova, S. (author)Research on indoor navigation models mainly focuses on geometric and logical models .The models are enriched with specific semantic information which supports localisation, navigation and guidance. Geometric models provide information about the structural (physical) distribution of spaces in a building, while logical models indicate...conference paper 2013
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Kostopoulos, D. (author), Liu, D. (author), Genani, G. (author), Polinder, H. (author)Offshore wind is considered a vital component of the future large scale renewable generation portfolio. Intense R&D effort is occurring in both the technology and the supply chain aiming at cost reduction. The drivetrain of wind turbines is an area of continuous evolution with currently no one standard configuration in the industry. It is...conference paper 2013
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Liu, Q. (author), Schlangen, H.E.J.G. (author), Van Bochove, G. (author)Porous asphalt shows excellent performance in both noise reduction and water drainage. Although porous asphalt has these great qualities, its service life is much shorter (sometimes only half) compared to dense graded asphalt roads. Ravelling, which is the loss of aggregate particles from the surface layer, is the main damage mechanism of porous...conference paper 2013
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Liu, Z. (author), Besseling, N.A.M. (author), Mendes, E. (author), Picken, S.J. (author)Polyborosiloxanes (PBSs) are viscoelastic, transparent, colourless, self-healable polymer matrices, synthesized by reacting linear polydimethylsiloxanes (PDMSs) with boric acid (BA) above 150°C. BA takes part not only in cleaving the PDMS chains, but also contributes boronic-acid like moieties to the cleaved chain ends, which provide...conference paper 2013
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Li, J. (author), Liu, X. (author), Scarpas, A. (author), Tzimiris, G. (author)Light weight orthotropic steel bridge decks have been widely utilized for bridges in seismic zones, movable bridges and long span bridges. In the last three decades, severe problems were reported in relation to asphaltic surfacing materials on orthotropic steel deck bridges. Earlier investigations have shown that the bonding strength of membrane...conference paper 2013
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Tzimiris, G. (author), Liu, X. (author), Scarpas, A. (author), Li, J. (author), Hofman, R. (author), Voskuilen, J. (author)Due to lightweight and flexibility, orthotropic steel deck bridges become popular the last decades but several problems were reported in relation to asphalt surfacing materials such as rutting, cracking, loss of bond between the surfacing system and steel deck. In the Netherlands a surfacing structure for orthotropic steel bridge decks mostly...conference paper 2013
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Liu, X. (author), Scarpas, A. (author), Li, J. (author), Tzimiris, G. (author), Hofman, R. (author), Voskuilen, J. (author)In order to adequately characterize the adhesive bonding strength of the various membranes with surrounding materials on orthotropic steel decks and collect the necessary parameters for FE modeling, details of the Membrane Adhesion Test (MAT) are introduced. Analytical constitutive relations of the MAT device have been derived using the same...conference paper 2013
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Liu, W. (author), Stappers, P.J. (author), Pasman, G.J. (author), Van der Helm, A.J.C. (author), Aprile, W.A. (author), Keller, I. (author)This study aimed to explore ways of user inputs through designing interactive game controllers with different type of sensor. From building four experiential prototypes on Pong, we learned to drive design by focusing on interaction qualities, which determine the use of sensors. We found that the interaction qualities together as a set offer a...conference paper 2012
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Chen, Y.C. (author), Liu, W. (author)The interactions in IT supported activities in a Generation Y work context were studied and discussed, which general design guidelines have een revealed. However, further research about practical design guidelines hasn’t been performed. This study aims to serve as supplement of this part based on previous research. By applying contextual...conference paper 2012
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- Li, K. (author), Liu, W. (author), Markine, V.L. (author), Ma, L. (author) conference paper 2012
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Chen, X. (author), Liu, X. (author), Qian, Z. (author), Lei, Z. (author)Reliable and durable asphalt surfacing systems still remain to be desired for the long-spanned orthotropic steel bridges as the nationally and internationally reports on distresses in deck pavement. Based on ten-year research works, this paper has presented a brief review and discussion of the Chinese practices and experiences of deck pavement...conference paper 2012
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Liu, X. (author), Scarpas, A. (author), Li, J. (author), Tzimiris, G. (author)In order to characterize adequately the adhesive bonding strength of the various membranes with surrounding materials on orthotropic steel decks and collect the necessary parameters for FE modeling, details of the Membrane Adhesion Test (MAT) have been introduced. Analytical constitutive relations of MAT device have been derived on the basis of...conference paper 2012
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Li, J. (author), Liu, X. (author), Scarpas, A. (author), Tzimiris, G. (author)In the Netherlands an asphaltic surfacing structure for orthotropic steel bridge decks mostly consists of two structural layers. The upper layer consists of Porous Asphalt (PA) because of reasons related to noise hindrance. For the lower layer a choice between Mastic Asphalt (MA) or Guss Asphalt (GA), can be made. In this paper, a typical Dutch...conference paper 2012
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Borgnakke, C. (author), Hansen, W. (author), Kang, Y. (author), Liu, Z. (author), Koenders, E.A.B. (author)Freezing of water can be explained by the thermodynamic properties of the water due to the influence of temperature, pressure and special effects such as surface tension and salt solution. Gibbs free energy curves for ice and pore liquid containing different concentrations of NaCl (0-6%) are presented. These curves explain the onset of freezing...conference paper 2012
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Liu, H. (author), Koonen, J. (author), Fuderer, M. (author), Heynderickx, I. (author)In current magnetic resonance (MR) imaging systems, design choices are confronted with a trade-off between structured (i.e. artifacts) and unstructured noise. The impact of both types of noise on perceived image quality, however, is so far unknown, while this knowledge would be highly beneficial for further improvement of MR imaging systems. In...conference paper 2012
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- Lund, H. (author), Liu, W. (author), Beella, S.K. (author), Brezet, J.C. (author) conference paper 2011