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Insights into the effect of susceptor rotational speed in CVD reactor on the quality of 4H-SiC epitaxial layer on homogeneous substrates

Tang, Zhuorui (author), Gu, Lin (author), Jin, Lei (author), Dai, Kefeng (author), Mao, Chaobin (author), Wu, Sanzhong (author), Zhang, Rongwei (author), Yang, Jinsong (author), Zhang, Kouchi (author)

In this work, 4H-SiC homoepitaxial layers were grown on 4°off-axis substrates at different susceptor rotation speeds by using a hot-wall horizontal CVD reactor. The effect of different susceptor rotation speed on the quality of 4H-SiC epitaxial layers in terms of thickness, thickness uniformity, crystallinity, surface morphology and...

journal article 2024

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From Short Circuit to Completed Circuit: Conductive Hydrogel Facilitating Oral Wound Healing

Zhou, Qiangqiang (author), Dai, Hanqing (author), Yan, Yukun (author), Qin, Zhiming (author), Zhou, Mengqi (author), Zhang, Wanlu (author), Zhang, Kouchi (author), Guo, Ruiqian (author), Wei, X. (author)

The primary challenges posed by oral mucosal diseases are their high incidence and the difficulty in managing symptoms. Inspired by the ability of bioelectricity to activate cells, accelerate metabolism, and enhance immunity, a conductive polyacrylamide/sodium alginate crosslinked hydrogel composite containing reduced graphene oxide (PAA-SA...

journal article 2024

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Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical-Functional Responses

Dai, Hanqing (author), Dai, Wenqing (author), Zhang, Wanlu (author), Zhang, Kouchi (author), Guo, Ruiqian (author)

The natural design and coupling of biological structures are the root of realizing the high strength, toughness, and unique functional properties of biomaterials. Advanced architecture design is applied to many materials, including metal materials, inorganic nonmetallic materials, polymer materials, and so on. To improve the performance of...

review 2023

document

Flushing Toilets and Cooling Spaces with Seawater Improve Water-Energy Securities and Achieve Carbon Mitigations in Coastal Cities

Zhang, Zi (author), Sato, Yugo (author), Dai, Ji (author), Chui, Ho kwong (author), Daigger, Glen (author), van Loosdrecht, Mark C.M. (author), Chen, Guanghao (author)

Exploring alternative water sources and improving the efficiency of energy uses are crucial approaches to strengthening the water-energy securities and achieving carbon mitigations in sub(tropical) coastal cities. Seawater use for toilet flushing and district cooling systems is reportedly practical for achieving multiaspect benefits in Hong...

journal article 2023

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Polyacrylamide-Poly(vinyl alcohol)-Sodium Alginate-Reduced Graphene Oxide/Nylon Fabrics with Multistimuli Responses

Chen, Yuanyuan (author), Dai, Hanqing (author), Yan, Yukun (author), Piao, Zhiyan (author), Lu, Hanxu (author), Hu, Zhe (author), Wei, Wei (author), Zhang, Kouchi (author), Zhang, Wanlu (author), Guo, Ruiqian (author)

In recent years, various functional fabrics capable of responding to multistimuli have been widely recognized as promising wearable devices. However, the obtained composite functional fabrics have only been applied in a few scenarios, rendering the achievement of multifunctional wearable application scenarios a difficult goal. Therefore,...

journal article 2023

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Building water quality deterioration during water supply restoration after interruption: Influences of premise plumbing configuration

Yao, Mingchen (author), Zhang, Yue (author), Dai, Zihan (author), Ren, Anran (author), Fang, Jiaxing (author), Li, Xiaoming (author), van der Meer, Walter (author), Medema, G.J. (author), Rose, Joan B. (author), Liu, Gang (author)

Premise plumbing plays an essential role in determining the final quality of drinking water consumed by customers. However, little is known about the influences of plumbing configuration on water quality changes. This study selected parallel premise plumbing in the same building with different configurations, i.e., laboratory and toilet...

journal article 2023

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Data-driven corrosion inhibition efficiency prediction model incorporating 2D–3D molecular graphs and inhibitor concentration

Ma, Jinbo (author), Dai, Jiaxin (author), Guo, Xin (author), Fu, Dongmei (author), Ma, Lingwei (author), Keil, Patrick (author), Mol, J.M.C. (author), Zhang, Dawei (author)

Following the construction of a dataset of cross-category corrosion inhibitors at different concentrations based on 1241 data from 184 research papers, a performance prediction model incorporating 2D–3D molecular graph representation and corrosion inhibitor concentration information was established. This model was shown to effectively predict...

journal article 2023

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A non-unit line protection method for MMC-HVDC grids based on the curvatures of backward traveling waves

Xie, F. (author), Hao, Zhiguo (author), Ye, Dongmeng (author), Yang, Songhao (author), Li, Chuanxi (author), Dai, Guoan (author), Zhang, Baohui (author), Wang, Ting (author)

The existing protection techniques for high-voltage direct-current (HVDC) grids suffer from several shortcomings such as high sampling frequency, poor robustness, and reliance on simulation for threshold setting. To solve these problems, this paper proposes a non-unit protection method for modular multilevel converter (MMC)-based HVDC grids...

journal article 2023

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A state-of-art review on development and progress of backfill grouting materials for shield tunneling

Jiang, Xi (author), Zhu, Hehua (author), Yan, Zhiguo (author), Zhang, Fengshou (author), Ye, Fei (author), Li, Peinan (author), Zhang, X. (author), Dai, Zhiren (author), Bai, Yun (author), Huang, Baoshan (author)

Backfill grouting plays a vital role in shield tunneling. This paper aims to present a comprehensive review of the development and progress of backfill grouting materials specifically designed for shield tunneling. Initially, the various components of grouts, such as pozzolanic materials, filling fine aggregates, and chemical additives, are...

journal article 2023

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A Strategy Inspired by the Cicada Shedding Its Skin for Synthesizing the Natural Material NaFe₃S₅·2H₂O

Dai, Hanqing (author), Dai, Wenqing (author), Chen, Yuanyuan (author), Yan, Yukun (author), Zuo, Guangzheng (author), Hu, Zhe (author), Wei, Jinxin (author), Zhou, Wenjie (author), Zhang, Kouchi (author)

Sulfide minerals hold significant importance in both fundamental science and industrial advancement. However, certain natural sulfide minerals, such as NaFe₃S₅·2H₂O (NFS), pose great challenges for exploitation and synthesis due to their high susceptibility to oxidation. To date, no successful precedent exists...

journal article 2023

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Bio-inspired combinable self-powered soft device operating during the disintegration and reconstruction for next-generation artificial electric organs

Chen, Yuanyuan (author), Dai, Hanqing (author), Hu, Zhe (author), Wei, Jinxin (author), Zhou, Wenjie (author), Duan, Zhongtao (author), Cui, Zhongjie (author), Wei, Wei (author), Zhang, Kouchi (author)

Hydrogel materials have biocompatibility, flexibility, transparency, self-healing ability, adhesion with various substrates, anti-freeze ability, and high-temperature resistance. However, the existing hydrogel devices cannot continue to operate in the case of damage, and they cannot work during the repair period, which brings great challenges...

journal article 2023

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Chemoenzymatic intermolecular haloether synthesis

Chen, Shaohang (author), Zhang, Jiaan (author), Zeng, Zhigang (author), Dai, Zongjie (author), Wang, Qinhong (author), Wever, Ron (author), Hollmann, F. (author), Zhang, W. (author)

A chemoenzymatic method for the synthesis of haloethers is presented. A combination of enzymatic hypohalite synthesis with spontaneous oxidation of alkenes and nucleophilic attack by various alcohols enabled the synthesis of a wide range of haloethers. The reaction system has been characterised and current imitations have been worked out. In...

journal article 2022

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A multi-axis robot-based bioprinting system supporting natural cell function preservation and cardiac tissue fabrication

Zhang, Z. (author), Wu, Chenming (author), Dai, C. (author), Shi, Qingqing (author), Fang, G. (author), Xie, Dongfang (author), Zhao, Xiangjie (author), Liu, Yong Jin (author), Wang, C.C. (author), Wang, Xiu Jie (author)

Despite the recent advances in artificial tissue and organ engineering, how to generate large size viable and functional complex organs still remains as a grand challenge for regenerative medicine. Three-dimensional bioprinting has demonstrated its advantages as one of the major methods in fabricating simple tissues, yet it still faces...

journal article 2022

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Cross-category prediction of corrosion inhibitor performance based on molecular graph structures via a three-level message passing neural network model

Dai, Jiaxin (author), Fu, Dongmei (author), Song, Guangxuan (author), Ma, Lingwei (author), Guo, Xin (author), Mol, J.M.C. (author), Cole, Ivan (author), Zhang, Dawei (author)

Current experimental verification, computational modeling, and machine learning methods for predicting corrosion inhibition efficiency (IE) are limited to specific inhibitor categories with high cost and poor generalization. In this study, a cross-category corrosion inhibitor dataset is constructed and a three-level direct message passing...

journal article 2022

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Accurate Scene Text Detection via Scale-Aware Data Augmentation and Shape Similarity Constraint

Dai, Pengwen (author), Li, Y. (author), Zhang, Hua (author), Li, Jingzhi (author), Cao, Xiaochun (author)

Scene text detection has attracted increasing concerns with the rapid development of deep neural networks in recent years. However, existing scene text detectors may overfit on the public datasets due to the limited training data, or generate inaccurate localization for arbitrary-shape scene texts. This paper presents an arbitrary-shape scene...

journal article 2021

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Novel Solid-State Sodium-Ion Battery with Wide Band Gap NaTi₂(PO₄)₃ Nanocrystal Electrolyte

Dai, Hanqing (author), Xu, Wenqian (author), Hu, Zhe (author), Chen, Yuanyuan (author), Gu, Jing (author), Xie, Fengxian (author), Wei, Wei (author), Guo, Ruiqian (author), Zhang, Kouchi (author)

NaTi2(PO4)3 (NTP), a well-known anode material, could be used as a solid wide-band gap electrolyte. Herein, a novel solid-state sodium-ion battery (SSIB) with the thickness of electrolyte up to the millimeter level is proposed. The results of the difference in charge density investigated by the first-principles calculations imply that using...

journal article 2021

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An omics-based framework for assessing the health risk of antimicrobial resistance genes

Zhang, An Ni (author), Gaston, Jeffry M. (author), Dai, Chengzhen L. (author), Zhao, Shijie (author), Poyet, Mathilde (author), Groussin, Mathieu (author), Li, Li Guan (author), van Loosdrecht, Mark C.M. (author), Zhang, Tong (author)

Antibiotic resistance genes (ARGs) are widespread among bacteria. However, not all ARGs pose serious threats to public health, highlighting the importance of identifying those that are high-risk. Here, we developed an ‘omics-based’ framework to evaluate ARG risk considering human-associated-enrichment, gene mobility, and host pathogenicity....

journal article 2021

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High-Voltage Cathode α-Fe₂O₃Nanoceramics for Rechargeable Sodium-Ion Batteries

Dai, Hanqing (author), Xu, Wenqian (author), Hu, Zhe (author), Gu, Jing (author), Chen, Yuanyuan (author), Guo, Ruiqian (author), Zhang, Kouchi (author), Wei, Wei (author)

Previously, α-Fe2O3 nanocrystals are recognized as anode materials owing to their high capacity and multiple properties. Now, this work provides high-voltage α-Fe2O3 nanoceramics cathodes fabricated by the solvothermal and calcination processes for sodium-ion batteries (SIBs). Then, their structure and electrical conductivity were...

journal article 2021

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Fundamentals and application of solid-state phase transformations for advanced high strength steels containing metastable retained austenite

Dai, Zongbiao (author), Chen, Hao (author), Ding, Ran (author), Lu, Qi (author), Zhang, Chi (author), Yang, Zhigang (author), van der Zwaag, S. (author)

Over many decades, significant efforts have been made to improve the strength-elongation product of advanced high strength steels (AHSSs) by creating tailored multi-phase microstructures. Successive solid-state phase transformations for steels with a well selected chemical composition turned out to be the key instrument in the realisation of...

review 2021

document

Tidal-flat reclamation aggravates potential risk from storm impacts

Zhang, Min (author), Dai, Zhijun (author), Bouma, T.J. (author), Bricker, J.D. (author), Townend, Ian (author), Wen, Jiahong (author), Zhao, Tongtiegang (author), Cai, Huayang (author)

A better understanding of how tidal-flat reclamation changes the flood hazard is critical for climate-proofing coastal flood defense design of heavily urbanized areas. Since the 1950s, large-scale reclamation has been performed along the Shanghai coast, China, to fulfill the land demands of city expansion. We now show that the loss of tidal...

journal article 2021