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Zhao, Lixiao (author), Feng, Pan (author)Chloride diffusion in concrete is one of the key parameters of durability design for structure. Existing methods of reducing the chloride diffusion such as decreasing water-cement ratio and adding mineral admixtures often lead to increase the risk of concrete cracking. In this study, we focused on mitigating the permeation of chloride ions in...conference paper 2021
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Feng, Taotao (author), Jiang, Jinyang (author), Chu, Hongyan (author), Wang, Liguo (author)This paper reports on a study to determine the possibility of using ultra-fine fly ash (UFA) for partial or total replacement of normal fly ash (NFA) in ultra-high performance concrete (UHPC). Workability, microstructure, porosity, drying shrinkage as well as mechanical properties were comprehensively studied to investigate the influence of UFA...conference paper 2021
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Wang, Haochuan (author), Feng, Pan (author), Geng, Zifan (author), Liu, Qi (author)The deterioration of organic coatings on concrete is closely linked to the efficiency in the protection process of reinforced structures. In the present work, polyurea resin and epoxy resin, which are widely used engineering coatings, were selected to measure and compare the performance under artificial aging. Fourier Transform infrared...conference paper 2021
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- Feng, Zhixin (author), Partog, Agusmian (author), Ompusunggu, Agusmian Partogi (author), Ferrari, Riccardo (author) conference paper 2022
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Ye, Shaoxiong (author), Feng, Pan (author), Liu, Yao (author), Liu, Jiaping (author)The nanoscale dissolution flux of tricalcium aluminate (C3A) in flowing water is characterized in situ by Digital Holographic Microscopy (DHM). The pure dissolution of C3A in flowing water with a flow rate of 34 ml·min-1 before the precipitation of hydrated phases only lasted about one quarter of a second, and the pure dissolution rate mostly...conference paper 2021
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The evolution of coherent structures in a flat plate boundary layer transition induced by the cylinder wake is investigated using the particle image velocimetry (PIV) technique. The finite-time Lyapunov exponent (FTLE), which characterizes the amount of stretching about the flow trajectory, is used to extract the Lagrangian coherent structures....conference paper 2015
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- Feng, F. (author) conference paper 2015
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- Feng, Y. (author) conference paper 1995
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Zhang, J.L. (author), Deng, X. (author), Feng, X. (author), Han, N.X. (author), Jonkers, H.M. (author)The CaCO3-mineralizing bacteria from different taxonomic groups have shown potential in restoration of construction material such as concretes, cements and stony materials. However, these strains are far from the demand of practical application due to some shortages, including the low mineralizing capacity. In this work, an integrated high...conference paper 2013
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Feng, R. (author), Sharma, S. (author), Luthi, S.M. (author), Gisolf, A. (author)Previously, Tetyukhina et al. (2014) developed a geological and petrophysical model based on the Book Cliffs outcrops that contained eight lithotypes. For reservoir modelling purposes, this model is judged to be too coarse because in the same lithotype it contains reservoir and non-reservoir lithologies. Hence, a new and more detailed geological...conference paper 2015
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Zhang, Y.-J. (author), Feng, X.-T. (author), Jiang, Q. (author)The epistemic uncertainty and aleatory uncertainty caused by the geology condition and construction method make the surrounding rock stability evaluation of underground cavern group difficult. The first may be reduced with more field investigation, tests or monitoring, but the later can not be avoided completely. So the risk analysis method can...conference paper 2015
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Ju, Siyi (author), Feng, Taotao (author), Wang, Liguo (author), Jiang, Jinyang (author)In this paper, four kinds of ecological fine aggregates (manufactured sand, recycled sand, aeolian sand and river sand) were used to prepared UHPC, the effects of the fine aggregates on the workability, rheological properties and mechanical properties of UHPC were studied. The results reveal that the type and content of fine aggregate have an...conference paper 2021
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Zhang, J.L. (author), Deng, X. (author), Feng, X. (author), Han, N.X. (author), Jonkers, H.M. (author)The CaCO3-mineralizing bacteria from different taxonomic groups have shown potential in restoration of construction material such as concretes, cements and stony materials. However, these strains are far from the demand of practical application due to some shortages, including the low mineralizing capacity. In this work, an integrated high...conference paper 2013
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Feng, S. (author), Zelasko, Piotr (author), Moro-Velázquez, Laureano (author), Scharenborg, O.E. (author)This paper tackles automatically discovering phone-like acoustic units (AUD) from unlabeled speech data. Past studies usually proposed single-step approaches. We propose a twostage approach: the first stage learns a subword-discriminative feature representation, and the second stage applies clustering to the learned representation and obtains...conference paper 2021
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Feng, Y. (author), Duives, D.C. (author), Daamen, W. (author), Hoogendoorn, S.P. (author)Understanding pedestrian exit choice behavior during emergency situations is important for improving evacuation efficiency. Virtual Reality is a promising technique that can be used to study pedestrian evacuation behavior. However, studies comparing evacuation behavior in real and virtual environments are still scarce. This paper explores...conference paper 2019
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Feng, W. (author), He, P. (author), Koetsier, M. (author), Pavlovic, M. (author)Wrapped composite joint is an innovative technique which connects steel hollow sections through bonding such that the fatigue performance is improved compared to welded joint. In this paper, a DIC-based method of monitoring surface strains is proposed to quantify the debonding crack propagation within the composite wrap layers during high cycle...conference paper 2022
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Feng, S. (author), Scharenborg, O.E. (author)This study addresses unsupervised subword modeling, i.e.,<br/>learning feature representations that can distinguish subword<br/>units of a language. The proposed approach adopts a two-stage<br/>bottleneck feature (BNF) learning framework, consisting of autoregressive<br/>predictive coding (APC) as a front-end and a DNNBNF<br/>model as a back-end...conference paper 2020
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Sun, Y. (author), Hein, C.M. (author), Song, Kun (author), Feng, Lin (author)Tianjin, one of the so-called Treaty Ports that opened to foreign trade under the unequal treaties was home to nine foreign concessions. In each concession, the foreign powers created urban forms and functions that mirrored practices in their respective home countries. This article explores the consecutive establishment and implementation of...conference paper 2018
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Feng, Y. (author)Virtual Reality (VR) is a valuable tool for studying pedestrian behaviour in complex and realistic scenarios. However, it has remained unknown how different VR technology would influence pedestrian behaviour. This paper presents VR experiments that were conducted with 70 participants using a desktop VR or a HMD VR to perform four different...conference paper 2021
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Wang, X. (author), Feng, Ling (author), Kooij, Robert (author), Marzo, Jose L. (author)Network robustness plays a critical role in the proper functioning of modern society. It is common practice to use spectral metrics, to quantify the robustness of networks. In this paper we compare eight different spectral metrics that quantify network robustness. Four of the metrics are derived from the adjacency matrix, the others follow...conference paper 2019