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Calado, V.E. (author), Zhu, S.E. (author), Goswami, S. (author), Xu, Q. (author), Watanabe, K. (author), Taniguchi, T. (author), Janssen, G.C.A.M. (author), Vandersypen, L.M.K. (author)In this letter, we report the observation of ballistic transport on micron length scales in graphene synthesised by chemical vapour deposition (CVD). Transport measurements were done on Hall bar geometries in a liquid He cryostat. Using non-local measurements, we show that electrons can be ballistically directed by a magnetic field (transverse...journal article 2014
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Xu, M. (author), Wachters, A.J.H. (author), Van Deelen, J. (author), Mourad, M.C.D. (author), Buskens, P.J.P. (author)We present a systematic study of the effect of variation of the zinc oxide (ZnO) and copper indium gallium (di)selenide (CIGS) layer thickness on the absorption characteristics of CIGS solar cells using a simulation program based on finite element method (FEM). We show that the absorption in the CIGS layer does not decrease monotonically with...journal article 2014
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Yin, L.J. (author), Chen, G.Z (author), Wang, C. (author), Xu, X. (author), Hao, L.Y. (author), Hintzen, H.T.J.M. (author)A series of Si-N or Eu-Li doped CeAl11O18 and CeAl12O18N phosphors are prepared by solid–state reaction. Their structure and luminescence are researched carefully. Si-N doping with the concentration less than 8% can be successfully dissolved into CeAl11O18 crystal lattice and doesn't change the matrix structure, only resulting in crystal lattice...journal article 2014
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Du, S. (author), Lin, K. (author), Malladi, S.R.K. (author), Lu, Y. (author), Sun, S. (author), Xu, Q. (author), Steinberger-Wilckens, R. (author), Dong, H. (author)In this work, we demonstrate an innovative approach, combing a novel active screen plasma (ASP) technique with green chemical synthesis, for a direct fabrication of uniform Pt nanowire arrays on large-area supports. The ASP treatment enables in-situ N-doping and surface modification to the support surface, significantly promoting the uniform...journal article 2014
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Fang, C.M. (author), Van Huis, M.A. (author), Xu, Q. (author), Cava, R.J. (author), Zandbergen, H.W. (author)Nb12O29 is a 4d transition metal oxide that occurs in two forms with different symmetries, monoclinic (m) and orthorhombic (o). The monoclinic form has unusual magnetic properties; below a temperature of 12 K, it exhibits both metallic conductivity and antiferromagnetic ordering. Here, first-principles density-functional theory calculations are...journal article 2014
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Dilner, D. (author), Lu, Q. (author), Mao, H. (author), Xu, W. (author), Van der Zwaag, S. (author), Selleby, M. (author)This paper demonstrates the use of a new model consisting of a genetic algorithm in combination with thermodynamic calculations and analytical process models to minimize the processing time during a vacuum degassing treatment of liquid steel. The model sets multiple simultaneous targets for final S, N, O, Si and Al levels and uses the total slag...journal article 2014
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Berghuis, B.A. (author), Dulin, D. (author), Xu, Zhi Qiang (author), van Laar, T. (author), Cross, B. (author), Janissen, R. (author), Jergic, Slobodan (author), Dixon, Nicholas E. (author), Depken, S.M. (author), Dekker, N.H. (author)The bidirectional replication of a circular chromosome by many bacteria necessitates proper termination to avoid the head-on collision of the opposing replisomes. In Escherichia coli, replisome progression beyond the termination site is prevented by Tus proteins bound to asymmetric Ter sites. Structural evidence indicates that strand...journal article 2015
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Xu, J. (author), Büsze, Benjamin (author), Van Hoof, Chris (author), Makinwa, K.A.A. (author), Yazicioglu, Refet Firat (author)This paper presents a digital active electrode (DAE) system for multi-parameter biopotential signal acquisition in portable and wearable devices. It is built around an IC that performs analog signal processing and digitization with the help<br/>of on-chip instrumentation amplifiers, a 12 bit ADC and a digital interface. Via a standard bus, up to...journal article 2015
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Xu, Y. (author), Peng, Y. (author), Qian, K. (author), Chan, A.P.C. (author)Public-private partnerships (PPP) can be employed to provide public rental housing for young graduates, which has been urgent to achieve social sustainability in China. However, few studies have been conducted to investigate the financing structure of PPPs, particularly the ratio of private investment, which is important in initiating a PPP...journal article 2015
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Vasudevan, S.A. (author), Xu, Y. (author), Karwal, S. (author), Van Ostaay, H.G.M.E. (author), Meesters, G.M.H. (author), Talebi, M. (author), Sudhölter, E.J.R. (author), Van Ommen, J.R. (author)Molecular layer deposition (MLD) was used to coat micron-sized protein particles in a fluidized bed reactor. Our results show that the dissolution rate of particles coated via MLD rapidly decreases with the increase in number of coating cycles, while the uncoated particles dissolve instantaneously.journal article 2015
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Dildar, I.M. (author), Neklyudova, M. (author), Xu, Q. (author), Zandbergen, H.W. (author), Harkema, S. (author), Boltje, D. (author), Aarts, J. (author)Sputter deposition of oxide materials in a high-pressure oxygen atmosphere is a well-known technique to produce thin films of perovskite oxides in particular. Also interfaces can be fabricated, which we demonstrated recently by growing LaAlO3 on SrTiO3 substrates and showing that the interface showed the same high degree of epitaxy and atomic...journal article 2015
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Xu, J. (author), Broekens, D.J. (author), Hindriks, K.V. (author), Neerincx, M.A. (author)The aim of our work is to design bodily mood expressions of humanoid robots for interactive settings that can be recognized by users and have (positive) effects on people who interact with the robots. To this end, we develop a parameterized behavior model for humanoid robots to express mood through body language. Different settings of the...journal article 2015
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Farahani, H. (author), Xu, W. (author), Van der Zwaag, S. (author)In this research, the effects of Mn and Si concentration and that of the isothermal intercritical holding temperature on the austenite-to-ferrite (? ? ?) and the martensite-to-austenite (?? ? ?) phase transformations are studied for a series of Fe-C-Mn-Si steels with up to 7 wt pct Mn. The model is based on the local equilibrium (LE) concept....journal article 2015
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Allen, C.S. (author), Liberti, E. (author), Kim, J.S. (author), Xu, Q. (author), Fan, Y. (author), He, K. (author), Robertson, A.W. (author), Zandbergen, H.W. (author), Warner, J.H. (author), Kirkland, A.I. (author)We have measured the mean square amplitude of both in- and out-of-plane lattice vibrations for mono-layer graphene at temperatures ranging from ?100 K to 1300?K. The amplitude of lattice vibrations was calculated from data extracted from selected area electron diffraction patterns recorded across a known temperature range with over 80...journal article 2015
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Xu, Z. (author), Schrama, E.J.O. (author), Van der Wal, W. (author), Van den Broeke, M. (author), Enderlin, E.M. (author)In this study, we use satellite gravimetry data from the Gravity Recovery and Climate Experiment (GRACE) to estimate regional mass changes of the Greenland ice sheet (GrIS) and neighbouring glaciated regions using a least-squares inversion approach. We also consider results from the input-output method (IOM) that quantifies the difference...journal article 2015
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Li, H. (author), Hu, Xiao Bing (author), Guo, Xiaomei (author), Xu, Z. (author), van Gelder, P.H.A.J.M. (author)As an important infrastructure system, civil aviation network system can be severely affected by natural hazards. Although a natural hazard is usually local, its impact, through the network topology, can become global. Inspired by Wilkinson’s work in 2012, this article proposes a new quantitative spatial vulnerability model for network...journal article 2016
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Xu, M. (author), Wei, S. (author), Zlatanova, S. (author)The demand for indoor navigation is increasingly urgent in many applications such as safe management of underground spaces or location services in complex indoor environment, e.g. shopping centres, airports, museums, underground parking lot and hospitals. Indoor navigation is still a challenging research field, as currently applied indoor...journal article 2016
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Mann, Daniel (author), Nascimento Duplat, D. (author), Keul, Helmut (author), Möller, Martin (author), Verheijen, Marcel (author), Xu, M. (author), Urbach, Paul (author), Adam, A.J.L. (author), Buskens, Pascal (author)Au and Ag nanoshells are of interest for a wide range of applications. The plasmon resonance of such nanoshells is the property of interest and can be tuned in a broad spectral regime, ranging from the ultraviolet to the mid-infrared. To date, a large number of manuscripts have been published on the optics of such nanoshells. Few of these,...journal article 2016
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Yin, L.J. (author), Dong, Juntao (author), Wang, Yinping (author), Zhang, Bi (author), Zhou, Zheng Yang (author), Jian, Xian (author), Wu, Mengqiang (author), Xu, Xin (author), van Ommen, J.R. (author), Hintzen, H.T.J.M. (author)Many strategies have been adopted to improve thermal degradation of phosphors. Because of the stability and high transmittance of graphene, here we report a novel method of carbon coating on BaMgAl<sub>10</sub>O<sub>17</sub>:Eu<sup>2+</sup> (BAM) phosphor particles through chemical vapor deposition. The chemical composition, microstructure,...journal article 2016
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Xu, Z. (author), Schrama, Ernst (author), van der Wal, W. (author), van den Broeke, MR (author), Enderlin, EM (author)In this study, we use satellite gravimetry data from the Gravity Recovery and Climate Experiment (GRACE) to estimate regional mass change of the Greenland ice sheet (GrIS) and neighboring glaciated regions using a least squares inversion approach. We also consider results from the input–output method (IOM). The IOM quantifies the difference...journal article 2016