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Li, Mingliang (author), Ren, S. (author), Liu, X. (author), Wu, Zhe (author), Zhang, Haopeng (author), Fan, Weiyu (author), Lin, P. (author), Xu, Jian (author)This study aims to comprehensively investigate the rejuvenation efficiency of various self-developed compound rejuvenators on the physical, mechanical, and aging properties of aged bitumen, asphalt mortar, and mixture. The results revealed that the restoration capacity of vacuum distilled-oil rejuvenators on high-and-low temperature performance...journal article 2022
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Ren, S. (author), Liu, X. (author), Lin, P. (author), Gao, Y. (author), Erkens, S. (author)The compatibility potential of rejuvenators plays an important role in improving the blending degree of rejuvenated bitumen. This study aims at estimating the efficiency of molecular dynamics (MD) simulation in predicting the compatibility between rejuvenators and aged bitumen, and exploring the influence of rejuvenator type, aging degree of...journal article 2022
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Ren, S. (author), Liu, X. (author), Lin, P. (author), Erkens, S. (author)This study investigated the effects of swelling-degradation degree on the rheological properties and thermal pyrolysis behaviors of crumb rubber modified bitumen (CRMB). The equilibrium viscosity of CRMB in 160 ◦Cswelling process is 10.5 Pa·s at 8 h. During the 200℃-degradation procedure, the viscosity increased to a maximum value of 20.58 Pa·s...journal article 2022
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Wang, Ye (author), Ren, Genkuan (author), Jiang, Bing (author), Yang, Lin (author), Zhang, Zhiye (author), Wang, Xinlong (author), Zhong, Yanjun (author), Chen, Z. (author), Yang, Xiushan (author), Morita, Kazuki (author), Ma, Wenhui (author)Nanometer-sized hematite was prepared via a two-step process. In the first step, FeSO<sub>4</sub>·7H<sub>2</sub>O was oxidized to Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> by oxygen in an acidic solution. In the second step, the Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> was reduced to nanosize hematite with sulfur vapor at 550 °C. The...journal article 2022
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Ren, S. (author), Liu, X. (author), Erkens, S. (author), Lin, P. (author), Gao, Y. (author)The molecular dynamics (MD) simulation method is proved as an efficient tool to explore the intermolecular interaction between rejuvenators and aged bitumen, but the simple “singlemolecule” model of rejuvenator would bring the inaccuracy to simulation outputs due to a huge difference with its realistic multi-component chrematistic. This study...journal article 2022
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Ren, Jie (author), Sun, Hongfang (author), Li, Qun (author), Li, Z. (author), Zhang, Xiaogang (author), Wang, Yanshuai (author), Li, Linfei (author), Xing, Feng (author)In this research, the effects of natural seawater (SW) on the properties of alkali-activated slag/fly ash (AASF) are studied. AASF prepared with deionized water is set as the reference mixture. The results showed that the use of natural SW resulted in a prolonged setting time and lower heat release, but no obvious impact on the flowability of...journal article 2022
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Ren, S. (author), Liu, X. (author), Lin, P. (author), Erkens, S. (author), Gao, Y. (author)Molecular dynamics (MD) simulation is an advanced tool to explore the interaction mechanism between aged bitumen and rejuvenators at the nanoscale. However, the general MD molecular structures of rejuvenators led to the lower quantify and inaccuracy of the simulation outputs. This study aims at developing more realistic molecular models to...journal article 2022
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Li, Jun (author), Ren, Anran (author), van der Mark, Ed (author), Liu, G. (author)Drinking water quality deteriorates from treatment plant to customer taps, especially in the plumbing system. There is no direct evidence about what the differences are contributed by plumbing system. This study compared the water quality in the water main and at customer tap by preparing a sampling tap on the water main. The biomass was...journal article 2022
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Ren, Mengmeng (author), Kang, Yi (author), Zhao, Junxue (author), Zou, Chong (author), Shi, Ruimeng (author), Li, Bin (author), Roekaerts, D.J.E.M. (author)Oxy-fuel combustion of coal pyrolysis gas has recently been proposed to serve as internal heat source of a vertical low-temperature pyrolysis furnace, in order to make the output pyrolysis gas nearly free of nitrogen and widely useful. To keep the pyrolysis temperature and the heat carrier gas volume unchanged from air combustion to oxy-fuel...journal article 2022
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Yin, Kangting (author), Jiang, Yaqing (author), He, Hui (author), Ren, Jie (author), Li, Z. (author)In this paper, fresh (setting and rheology) and hardened properties (strength and shrinkage) of one-part alkali-activated slag (AAS) with and without rice straw ash (RSA) are comprehensively investigated. The reaction kinetics and microstructure of the mixtures are characterized by a series of experimental techniques. The results reveal that...journal article 2022
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Zhao, Zhijun (author), Yan, Gaowei (author), Ren, Mifeng (author), Cheng, Lan (author), Zhu, Zhujun (author), Pang, Y. (author)The traditional soft sensor models are based on the independent and identical distribution assumption, which are difficult to adapt to changes in data distribution under multiple operating conditions, resulting in model performance deterioration. The domain adaptive transfer learning methods learn knowledge in different domains by means of...journal article 2022
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Zhang, Y. (author), Liu, X. (author), Ren, S. (author), Jing, R. (author), Lin, P. (author), Apostolidis, P. (author), Erkens, S. (author), Wang, Xuancang (author), Scarpas, Athanasios (author)Lignin, one of the most abundant natural polymers, has been extensively studied as an additive in bituminous binders. Even though the lignin improves the overall resistance against oxidative aging of bitumen, it could lead to high thermal cracking sensitivity. In this study, a bio-oil (i.e., rapeseed oil) is implemented in lignin-modified...journal article 2022
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Ren, S. (author), Liu, X. (author), Lin, P. (author), Jing, R. (author), Erkens, S. (author)This study aimed to explore the long-term aging influence on chemo rheological properties and develop novel consecutive models for the long-term aging reaction kinetics of bitumen. The results revealed that the aging index was significantly dependent on the types of selected parameters. The Zero-order model was suitable to describe the long-term...journal article 2022
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Jiang, Qian (author), Ren, Feng (author), Wang, Chenglei (author), Wang, Zhaokun (author), Kefayati, Gholamreza (author), Kenjeres, S. (author), Vafai, Kambiz (author), Liu, Yang (author), Tang, Hui (author)We developed a dedicated computational framework by coupling the lattice-Boltzmann-method (LBM) modeling and the particle-swarm-optimization (PSO) algorithm to search optimal strategies of magnetic nanoparticle (MNP) injection for hyperthermia-based cancer treatment. Two simplified tumor models were considered: a circular model representing...journal article 2022
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Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author), Ren, S. (author), Li, Yi (author)High content rubber modified bitumen (HCRMB) prepared from the high content of waste tire rubber and bitumen has good performance while allowing greater use of the waste tires. However, HCRMB is subject to aging during use, which can affect its performance. The purpose of this paper was to investigate the effect of high content of waste tire...journal article 2022
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Wang, Feifei (author), Ren, Fuqiang (author), Ma, Zhuoran (author), Qu, Liangqiong (author), Gourgues, Ronan (author), Esmaeil Zadeh, I.Z. (author), Los, Johannes W.N. (author), Qin-Dregely, Y. (author), Dai, Hongjie (author)Light scattering by biological tissues sets a limit to the penetration depth of high-resolution optical microscopy imaging of live mammals in vivo. An effective approach to reduce light scattering and increase imaging depth is to extend the excitation and emission wavelengths to the second near-infrared window (NIR-II) at >1,000 nm, also...journal article 2022
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Wang, Huatian (author), Ren, Yue (author), Liu, W. (author)Students’ learning processes are heavily impeded by the COVID-19 pandemic. Students are experiencing more online learning environment and less face-to-face idea exchange, which may make them feel exhausted and demotivated. Using self-determination and proactivity theories, we propose and examine whether playful study design (PSD)—a proactive...journal article 2022
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Zhao, Jiale (author), Yang, Fuqiang (author), Guo, Yong (author), Ren, X. (author)Emergency management research is used to deal with the increasing number of extreme weather threats in urban areas. This paper uses causal analysis based on systems theory (CAST) to review the subway water ingress accident and the government's emergency management actions in Zhengzhou, Henan Province, during the heavy rainstorm disaster on 20...journal article 2022
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Zhang, Jing (author), Jia, Li (author), Menenti, M. (author), Zhou, Jie (author), Ren, Shaoting (author)Glacier and snow are sensitive indicators of regional climate variability. In the early 21st century, glaciers in the West Kunlun and Pamir regions showed stable or even slightly positive mass budgets, and this is anomalous in a worldwide context of glacier recession. We studied the evolution of snow cover to understand whether it could...journal article 2021
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Ren, Mengmeng (author), Wang, Shuzhong (author), Romero-Anton, N. (author), Zhao, Junxue (author), Zou, Chong (author), Roekaerts, D.J.E.M. (author)Eddy dissipation concept (EDC) model and flamelet generated manifolds (FGM) model are developed separately to study the temperature profiles and extinction limits of non-premixed hydrothermal flames. Predictions by the two models are evaluated comparatively by experimental data in literatures. FGM model shows relatively better prediction of...journal article 2021