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Cai, Huayang (author), Savenije, H.H.G. (author), Garel, Erwan (author), Zhang, Xianyi (author), Guo, Leicheng (author), Zhang, Min (author), Liu, Feng (author), Yang, Qingshu (author)
As a tide propagates into the estuary, river discharge affects tidal damping, primarily via a friction term, attenuating tidal motion by increasing the quadratic velocity in the numerator, while reducing the effective friction by increasing the water depth in the denominator. For the first time, we demonstrate a third effect of river discharge...
journal article 2019
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Li, Y. (author), Cai, Wei (author), Kana, A.A. (author)
This paper introduces a novel technique to design the level of service (LOS) for facilities or sub spaces of buildings for the purpose of evacuation planning. LOS is a standard qualitative indicator used to describe flow characteristics in a pedestrian environment. Some evacuation planners use LOS to help determine the network parameters when...
journal article 2019
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Cai, J. (author), Musta, E. (author)
We study the asymptotic behavior of the marginal expected shortfall when the two random variables are asymptotic independent but positively associated, which is modeled by the so-called tail dependent coefficient. We construct an estimator of the marginal expected shortfall, which is shown to be asymptotically normal. The finite sample...
journal article 2019
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Peters, Lucas J.J.M. (author), Cai, J. (author), Wang, H. (author)
Temporal bipartite networks that describe how users interact with tasks or items over time have recently become available. Such temporal information allows us to explore user behavior in-depth. We propose two metrics, the relative switch frequency and distraction in time to measure a user’s sequential-tasking level, i.e. to what extent a user...
conference paper 2019
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Velthoen, J.J. (author), Cai, J. (author), Jongbloed, G. (author), Schmeits, Maurice (author)
Aiming to estimate extreme precipitation forecast quantiles, we propose a nonparametric regression model that features a constant extreme value index. Using local linear quantile regression and an extrapolation technique from extreme value theory, we develop an estimator for conditional quantiles corresponding to extreme high probability...
journal article 2019
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Cai, Miao (author), Liang, Yonghu (author), Yun, Minghui (author), Chen, Xuan-You (author), Yan, Haidong (author), Yu, Zhaozhe (author), Yang, Daoguo (author), Zhang, G.Q. (author)
A novel silicone rubber elastic key (SREK) is proposed in this paper for surface mounting technology (SMT) applications. Effects of thermal reflowing stress on the mechanical properties of SMT-SREKs are investigated. The manufactured SMT-SREKs, which underwent various reflowing conditions in advance, are subjected to pressing force and...
journal article 2019
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Lu, Xingyuan (author), Zhao, C.L. (author), Shao, Y. (author), Zeng, Jun (author), Konijnenberg, A.P. (author), Zhu, Xinlei (author), Popov, Sergei (author), Urbach, H.P. (author), Cai, Yangjian (author)
In the theory of partial coherence, coherence singularities can occur in the spectral degree of coherence (SDOC): in case the fields at two different points are completely uncorrelated, the phase of the SDOC is undefined. For a partially coherent vortex beam, the detection of coherence singularities is linked to the measurement of topological...
journal article 2019
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Cai, J. (author)
The research investigates How can the morphological approach in combination with the pattern language approach assist urban designers to achieve historical continuity in urban design both on theory and application levels.<br/>This research overviews the developments and applications of the two approaches worldwide with a special emphasis on the...
doctoral thesis 2018
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Cai, J. (author)
This thesis deals with the structural damage and its corresponding effect on the residual ultimate strength of seamless metallic pipes. The structural damage is here characterized as the type of damage produced by external mechanical interference, considerably undermining the strength and/or stability of the pipes. Not only the aesthetic...
doctoral thesis 2018
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Cai, H. (author), Toffolon, Marco (author), Savenije, H.H.G. (author), Yang, Qingshu (author), Garel, Erwan (author)
When different tidal constituents propagate along an estuary, they interact because of the presence of nonlinear terms in the hydrodynamic equations. In particular, due to the quadratic velocity in the friction term, the effective friction experienced by both the predominant and the minor tidal constituents is enhanced. We explore the...
journal article 2018
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Schouhamer Immink, Kees A. (author), Cai, Kui (author), Weber, J.H. (author)
We consider the transmission and storage of encoded strings of symbols over a noisy channel, where dynamic threshold detection is proposed for achieving resilience against unknown scaling and offset of the received signal. We derive simple rules for dynamically estimating the unknown scale (gain) and offset. The estimates of the actual gain...
journal article 2018
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author)
A dent is one of the main structural damages that may affect ultimate strength. In this paper, the residual ultimate strength of dented metallic pipes subjected to a bending moment is quantitatively investigated. The numerical model is developed accounting for the variation of the dent length (l<sub>d</sub>), dent depth (d<sub>d</sub>), dent...
journal article 2018
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Cai, Z. (author), van Veldhoven, Robert (author), Suy, Hilco (author), de Graaf, G. (author), Makinwa, K.A.A. (author), Pertijs, M.A.P. (author)
This paper presents a readout circuit for a carbon dioxide (CO&amp;#2082;) sensor that measures the CO&amp;#x2082;-dependent thermal time constant of a hot-wire transducer. The readout circuit periodically heats up the transducer and uses a phase-domain &amp;#x0394; &amp;#x03A3; modulator to digitize the phase shift of the resulting...
journal article 2018
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author), Pei, Zhiyong (author), Wu, Weiguo (author)
Numerical investigation is conducted in this paper on both intact and dented seamless metallic pipelines (diameter-to-thickness ratio D/t around 21), deploying nonlinear finite element method (FEM). A full numerical model is developed, capable of predicting the residual ultimate strength of pipes in terms of bending capacity (M<sub>cr</sub>)...
journal article 2018
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Yang, Ning (author), Yang, Daoguo (author), Zhang, G.Q. (author), Chen, Liangbiao (author), Liu, Dongjing (author), Cai, Miao (author), Fan, Xuejun (author)
The effects of graphene stacking are investigated by comparing the results of methane adsorption energy, electronic performance, and the doping feasibility of five dopants (i.e., B, N, Al, Si, and P) via first-principles theory. Both zigzag and armchair graphenes are considered. It is found that the zigzag graphene with Bernal stacking has...
journal article 2018
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Shao, Y. (author), Lu, Xingyuan (author), Konijnenberg, A.P. (author), Zhao, C.L. (author), Cai, Yangjian (author), Urbach, H.P. (author)
The complete characterization of spatial coherence is extremely di cult because the mutual coherence function (MCF) is a complex-valued function of four independent Cartesian coordinates. This di culty limits the ability to control and to optimize the spatial coherence in a broad range of key applications. Here we propose an e cient and...
journal article 2018
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Bokel, R.M.J. (author), Cai, Jiahui (author), Nanda, Priya (author), Rouwenhorst, Tessa (author)
The research question of this report is “Is it possible to save energy by lowering the bedroom temperatures in winter”. In this paper first the literature on optimum sleeping temperatures is investigated. Then bedroom temperatures and CO2 levels in a cold week in March 2018 are investigated in 16 bedrooms of students of the Master course...
conference paper 2018
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Li, Shengli (author), Liu, Y. (author), Zhang, H. (author), Cai, Hongming (author), Sun, Fenglian (author), Zhang, G.Q. (author)
In this study, SAC305 and SAC305-0.3Ni solder balls were soldered onto Cu, high temperature treated Cu (H-Cu) and graphene coated Cu (G-Cu) substrates, respectively. The microstructure, the interfacial reaction, and the hardness of the solder joints were investigated. The interfacial intermetallic compound (IMC) is Cu<sub>6</sub>Sn<sub>5</sub...
journal article 2018
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Cai, Miao (author), Yang, Daoguo (author), Huang, J. (author), Zhang, Maofen (author), Chen, Xianping (author), Liang, Caihang (author), Koh, S.W. (author), Zhang, G.Q. (author)
The color coordinate shift of light-emitting diode (LED) lamps is investigated by running three stress-loaded testing methods, namely step-up stress accelerated degradation testing, step-down stress accelerated degradation testing, and constant stress accelerated degradation testing. A power model is proposed as the statistical model of the...
journal article 2017
document
Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author)
review 2017
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