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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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Wang, Jijie (author), Li, G. (author), Li, Zelong (author), Tang, Chizhou (author), Feng, Zhaochi (author), An, Hongyu (author), Liu, Hailong (author), Liu, Taifeng (author), Li, Can (author)Although methanol synthesis via CO hydrogenation has been industrialized, CO<sub>2</sub> hydrogenation to methanol still confronts great obstacles of low methanol selectivity and poor stability, particularly for supported metal catalysts under industrial conditions. We report a binary metal oxide, ZnO-ZrO<sub>2</sub> solid solution catalyst,...journal article 2017
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- Wang, Peng (author), Chen, Wei (author), Chiang, Fu-Kuo (author), Dugulan, A.I. (author), Song, Yuanjun (author), Pestman, Robert (author), Zhang, Kui (author), Yao, Jinsong (author), Feng, Bo (author), Miao, Ping (author), Xu, Wayne (author), Hensen, Emiel J.M. (author) journal article 2018
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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
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Wang, H. (author), Zhang, Yue (author), Zhang, Yi (author), Feng, Shuyin (author), Lu, Guoyang (author), Cao, Lintao (author)Microwave heating is an encouraging heating technology for the maintenance, recycling, and deicing of asphalt pavement. To investigate the microwave heating properties of asphalt mixture, laboratory tests and numerical simulations were done and compared. Two types of Stone Mastic Asphalt (SMA) mixture samples (with basalt aggregates and steel...journal article 2019
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Wang, H. (author), Lu, Guoyang (author), Feng, Shuyin (author), Wen, Xiaobo (author), Yang, Jun (author)Pyrolytic carbon black (CB <sub>p</sub> ) from scrap tire pyrolysis is a potential modifier for the bitumen industry. Binders containing different contents of CB <sub>p</sub> were prepared and experimentally investigated to examine the effects of CB <sub>p</sub> on the electrical and thermal conductivity, conventional physical properties,...journal article 2019
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Dadisman, Ryan (author), Shen, Jiazhou (author), Feng, Hao (author), Crow, Lowell (author), Jiang, Chenyang (author), Wang, Tianhao (author), Zhang, Yuxuan (author), Bilheux, Hassina (author), Parnell, S.R. (author)Several methods of polarized neutron scattering call for a zero magnetic field (ZF) region to reduce magnetic field integral aberrations while preserving the neutron polarization. Though the design for large angle neutron scattering has been presented in various places, the design characterization and tuning has not been discussed before. In...journal article 2019
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Zou, Xingxing (author), Feng, Peng (author), Bao, Yi (author), Wang, Jingquan (author), Xin, H. (author)The design of FRP profile-concrete composite sections, including beams and decks, is usually governed by the shear strength of the FRP profiles. However, analytical methods that can precisely predict the shear capacity of the composite sections have not been well developed, because there is lack of knowledge of the FRP-concrete composite...journal article 2020
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Chai, Jiachun (author), Pestman, Robert (author), Chen, Wei (author), Dugulan, A.I. (author), Feng, Bo (author), Men, Zhuowu (author), Wang, Peng (author), Hensen, Emiel J.M. (author)The formation of Fe-carbide phases is relevant to the synthesis of Fischer-Tropsch synthesis catalysts. We investigated the carburization of Raney Fe as a model catalyst using spectroscopic and temperature-programmed techniques. IR spectroscopy shows that CO dissociation already occurs at −150 °C, while C diffusion into metallic Fe requires...journal article 2021
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Ren, Jie (author), Wang, Yuan (author), Feng, Di (author), Gong, J. (author)Large volumes of carbon dioxide (CO<sub>2</sub>) captured from carbon emission source can be stored in deep saline aquifers as a mean of mitigating climate change. The deep saline aquifers are naturally heterogeneous at multiple scales. It is important to generate representative multiscale heterogeneous fields of various hydrogeologic...journal article 2021
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Wang, X. (author), Feng, S. (author), Zhu, Jihua (author), Hasegawa-Johnson, Mark (author), Scharenborg, O.E. (author)This paper proposes a new model, referred to as the show and speak (SAS) model that, for the first time, is able to directly synthesize spoken descriptions of images, bypassing the need for any text or phonemes. The basic structure of SAS is an encoder-decoder architecture that takes an image as input and predicts the spectrogram of speech that...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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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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Wang, Shilei (author), Liu, Guixian (author), Jing, Guoqing (author), Feng, Qiankuan (author), Liu, Hengbai (author), Guo, Y. (author)In the past 20 years, many studies have been performed on ballast layer inspection and condition evaluation with ground penetrating radar (GPR). GPR is a non-destructive means that can reflect the ballast layer condition (fouling, moisture) by analysing the received signal variation. Even though GPR detection/inspection for ballast layers has...review 2022
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Li, Bo (author), Liu, Qiuhong (author), Wang, T. (author), He, He (author), Peng, You (author), Feng, Tao (author)Outdoor physical activities can promote public health and they are largely influenced by the built environment in different urban settings. Understanding the association between outdoor physical activities and the built environment is important for promoting a high quality of life. Existing studies typically focus on one type of outdoor activity...journal article 2022
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Ao, Yibin (author), Tan, Ling (author), Feng, Qiqi (author), Tan, Liyao (author), Li, Hongfu (author), Wang, Yan (author), Wang, T. (author), Chen, Yunfeng (author)The global climate change has resulted in huge flood damages, which seriously hinders the sustainable development of rural economy and society and causes famers’ livelihood problems. In flood-prone areas, it is imperative to actively study short and long-term strategies and solve farmers’ livelihood problems accordingly. Following the...journal article 2022
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Wang, J. (author), Meeprasert, J. (author), Han, Z. (author), Wang, H. (author), Feng, Z. (author), Tang, C. (author), Sha, F. (author), Tang, S. (author), Pidko, E.A. (author)The conversion of CO2 with high activity and high selectivity to methanol remains challenging because of both the kinetics and thermodynamics difficulties associated with the chemical reactivity of CO2. Herein, we report a new catalyst of Cd/TiO2 enabling 81% methanol selectivity at 15.8% CO2 conversion with the CH4 selectivity below 0.7%. The...journal article 2022
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Ao, Yibin (author), Feng, Qiqi (author), Zhou, Zhongli (author), Chen, Yunfeng (author), Wang, T. (author)The rural three-tier healthcare system is an essential part of the Chinese healthcare service system. To ensure rural residents’ equal access to such healthcare services, it is necessary to examine the current status of the healthcare system in rural China and formulate corresponding improvement suggestions. This study therefore collects the...journal article 2022
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Zhan, Teng (author), Sun, J. (author), Feng, Tao (author), Zhang, Yulong (author), Zhou, Binru (author), Zhang, Banghong (author), Wang, Junxi (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)Recent research focusing on wide-bandgap and two-dimensional materials with a Schottky junction has provided a new concept for ultraviolet photodetectors. However, the working mechanism of the Schottky junction-based detector varies depending on the photosensitive materials used and the device structure. We demonstrated a TiO<sub>2</sub>...journal article 2022
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