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Du, Haiquan (author), Zhang, Shasha (author), Zhang, Bingyi (author), Tao, Xuewei (author), Yao, Zhengjun (author), Belov, Nikolay (author), van der Zwaag, S. (author), Liu, Zili (author)Al-Mg alloys are normally prone to lose part of their yield and tensile strength at high temperatures due to insufficient thermal stability of the microstructure. Here, we present a Ca-modified Al–Mg–Sc alloy demonstrating high strength at elevated temperatures. The microstructure contains Al<sub>4</sub>Ca phases distributed as a network...journal article 2021
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He, Yingdong (author), Zhou, Yuekuan (author), Yuan, Jing (author), Liu, Zhengxuan (author), Wang, Zhe (author), Zhang, Guoqiang (author)Cleaner power production, distributed renewable generation, building-vehicle integration, hydrogen storage and associated infrastructures are promising for transformation towards a carbon–neutral community, whereas the academia provides limited information through integrated solutions, like intermittent renewable integration, hydrogen sharing...journal article 2021
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Chen, Xiaoyan (author), He, Qinghua (author), Zhang, Xinyue (author), Cao, Tingting (author), Liu, Y. (author)Collaborative innovation has become an innovation paradigm to improve innovation performance and firms’ economic output. However, there is relatively little research investigating stakeholders’ drivers for engaging in collaborative innovation and the relative importance of drivers in infrastructure megaprojects. This research aims to address...journal article 2021
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Zhang, Wenqian (author), Dong, Wenhan (author), Lv, Maolong (author), Liu, Zongcheng (author), Zhou, Yang (author), Feng, Haoming (author)This work proposes a nonsingular adaptive fixed-time switching control method for a class of strict-feedback nonlinear dynamics subject to full state constraints. The peculiarity of this design lies in overcoming the singularity issue that typically appears in the existing backstepping-based fixed-time control methods caused by the iterative...journal article 2021
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He, Yingdong (author), Zhou, Yuekuan (author), Wang, Zhe (author), Liu, Jia (author), Liu, Zhengxuan (author), Zhang, Guoqiang (author)Hydrogen-based (H<sub>2</sub>-based) interactive energy networks for buildings and transportations provide novel solutions for carbon-neutrality transition, regional energy flexibility and independence on fossil fuel consumption, where vehicle fuel cells are key components for H<sub>2</sub>-electricity conversion and clean power supply....journal article 2021
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Wang, H. (author), Liu, X. (author), Varveri, Aikaterini (author), Zhang, H. (author), Erkens, S. (author), Scarpas, Athanasios (author), Leng, Zhen (author)Considering the application scenarios of rubber granules from waste tires in the bitumen modification process (wet or dry process), both aerobic and anaerobic aging of rubber may occur. The current study aims to investigate the thermal aging behavior of waste tire rubber samples using nanoindentation and environment scanning electron microscopy ...journal article 2021
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Ding, Chao (author), Wang, Jian (author), Liu, Tianhan (author), Qin, Hongbo (author), Yang, Daoguo (author), Zhang, Kouchi (author)Full intermetallic compound (IMC) solder joints present fascinating advantages in high-temperature applications. In this study, the mechanical properties and elastic anisotropy of η’-Cu6Sn5 and Cu3Sn intermetallic compounds were investigated using first-principles calculations. The values of single-crystal elastic constants, the elastic (E),...journal article 2021
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Sun, J. (author), Zhan, Teng (author), Sokolovskij, R. (author), Liu, Zewen (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)Based on our proposed precision two-step gate recess technique, a suspended gate-recessed Pt/AlGaN/GaN heterostructure gas sensor integrated with a micro-heater is fabricated and characterized. The controllable two-step gate recess etching method, which includes O2 plasma oxidation of nitride and wet etching, improves gas sensing performance....journal article 2021
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Lu, Guoyang (author), Wang, H. (author), Zhang, Yuqing (author), Liu, Pengfei (author), Wang, Dawei (author), Oeser, Markus (author), Grabe, Jürgen (author)The pore-water pressure generated by intermittent dynamic vehicle loading under various saturation states is recognized as a critical factor influencing the behaviour of permeable pavement structures, especially the behaviour of UGB layer. However, the underlying mechanisms of hydro-mechanical interaction in the UGB layer and the influence on...journal article 2021
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Zhang, Xinyue (author), Le, Yun (author), Liu, Y. (author), Chen, Xiaoyan (author)In emerging economies, infrastructure projects are in full swing. There is a wealth of replicable experience for exploitation. Simultaneously, more technologies and methodologies require further exploration. This makes fostering ambidextrous innovation strategies (i.e., the tradeoff between exploitative and exploratory innovation strategies) a...journal article 2021
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Lin, P. (author), Liu, X. (author), Apostolidis, P. (author), Erkens, S. (author), Zhang, Y. (author), Ren, S. (author)Observing the microstructure of bituminous binders with an environmental scanning electron microscope (ESEM) can contribute significantly to reveal the underlying rejuvenation mechanism. In this study, three rejuvenators were selected to regenerate the aged SBS modified binders at five dosages, and their rheology was evaluated using a dynamic...journal article 2021
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Kang, Xuanwu (author), Sun, Y. (author), Zheng, Yingkui (author), Wei, Ke (author), Wu, Hao (author), Zhao, Yuanyuan (author), Liu, Xinyu (author), Zhang, Kouchi (author)In this brief, a high-performance quasi-vertical GaN Schottky barrier diode (SBD) on sapphire substrate with post-mesa nitridation process is reported, featuring a low damaged sidewall with extremely low leakage current. The fabricated SBD with a drift layer of 1 μm has achieved a very high ON/OFF current ratio (Iscriptscriptstyle ON...journal article 2021
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Bian, Dong (author), Zhou, Xiaochen (author), Liu, Jianing (author), Li, Wenting (author), Shen, Danni (author), Zheng, Yufeng (author), Gu, Wenda (author), Jiang, Jingjun (author), Li, Mei (author), Chu, Xiao (author), Ma, Limin (author), Wang, Xiaolan (author), Zhang, Yu (author), Leeflang, M.A. (author), Zhou, J. (author)Biodegradable stents can provide scaffolding and anti-restenosis benefits in the short term and then gradually disappear over time to free the vessel, among which the Mg-based biodegradable metal stents have been prosperously developed. In the present study, a Mg-8.5Li (wt.%) alloy (RE- and Al-free) with high ductility (> 40%) was...journal article 2021
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Hu, Feng (author), Ma, Lin (author), Zhan, X. (author), Zhou, Yinzuo (author), Liu, Chuang (author), Zhao, Haixing (author), Zhang, Zi Ke (author)The study of citation networks is of interest to the scientific community. However, the underlying mechanism driving individual citation behavior remains imperfectly understood, despite the recent proliferation of quantitative research methods. Traditional network models normally use graph theory to consider articles as nodes and citations as...journal article 2021
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Ren, S. (author), Liu, X. (author), Zhang, Y. (author), Lin, P. (author), Apostolidis, P. (author), Erkens, S. (author), Li, Mingliang (author), Xu, Jian (author)Lignin, as a major waste from biofuel and paper industries, could be utilized as a modifier to enhance the relevant performance of bitumen. However, the effects of lignin on the thermodynamics properties and molecular structure of bitumen are rarely studied. Meanwhile, the potential modification mechanism of lignin modified bitumen is still...journal article 2021
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Zhang, Cheng-lin (author), Chen, Wei-kang (author), Mu, Song (author), Šavija, B. (author), Liu, Qing-feng (author)Reinforced concrete (RC) structures may suffer from serious durability problems during long-term service. To investigate the deterioration of RC structures subjected to the dual attacks of chlorides and sulfates, this study proposes a coupled model for external sulfate attack (ESA) and its effect on chloride binding and diffusion. To account for...journal article 2021
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Liu, G. (author), Yan, Qun (author), Zhou, Yanan (author), Zhang, X. (author), Spanjers, H. (author)2D-g-C<sub>3</sub>N<sub>4</sub> nanosheet was prepared and employed for the adsorption of elemental mercury (Hg<sup>0</sup>). The g-C<sub>3</sub>N<sub>4</sub> was analyzed through X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FT-IR) methods, and the results showed that the prepared...journal article 2021
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Wang, H. (author), Zhang, H. (author), Liu, X. (author), Scarpas, Athanasios (author), Leng, Zhen (author)Crumb rubber modified bitumen (CRMB) can be regarded as a binary composite system in which swollen rubber particles are embedded in the bitumen matrix. The current study aims to further improve the prediction accuracy of micromechanical models for CRMB by considering the interparticle interactions. To accomplish this goal, two different...journal article 2021
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Zhang, Xinyue (author), Le, Yun (author), Liu, Y. (author), Liu, Mingqiang (author)In infrastructure project practice, balancing and maximizing the combined effect of exploratory and exploitative innovation have attracted increasing attention, but it is still unclear how to foster ambidextrous innovation in infrastructure projects. To address this gap, we draw on the differentiation-integration framework of ambidexterity...journal article 2021
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Meijer, Niels (author), Dupont-Nivet, Guillaume (author), Barbolini, Natasha (author), Woutersen, Amber (author), Rohrmann, Alexander (author), Zhang, Yang (author), Liu, Xiang Jun (author), Licht, Alexis (author), Abels, H.A. (author)Asian mineral dust has been studied extensively for its role in affecting regional-to global-scale climate and for its deposits, which enable reconstructing Asian atmospheric circulation in the past. However, the timing and origin of the dust deposits remain debated. Numerous loess records have been reported across the Asian continent with...journal article 2021