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FlexMat 2024年

作者： Yehai Li Shifeng Guo Zhongqing Su Keqin Ding Xian Jun Loh Shenzhen Key Laboratory of Smart Sensing and Intelligent Systems Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen China Guangdong Provincial Key Lab of Robotics and Intelligent System Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen China University of Chinese Academy of Sciences Beijing China The Key Laboratory of Biomedical Imaging Science and System Chinese Academy of Sciences Shenzhen China Department of Mechanical Engineering The Hong Kong Polytechnic University Kowloon Hong Kong Technology Innovation Center of Structural Health Monitoring of State Market Regulation China Special Equipment Inspection & Research Institute Beijing China Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) Singapore Singapore

Structural health monitoring (SHM) has been increasingly investigated for decades. Different physical principles have been developed for damage identification, such as electronics, mechanics, magnetics, etc., with different coverage (i.e., global, large-area, and local monitoring) and sensitivity. Mechanical acousto-ultrasonic-based methods have formed a big family in SHM technologies. Multiple wave/resonance modes have been utilized for versatile SHM tasks. The permanently integrated sensing networks play a significant role in achieving a cost-effective and reliable SHM system, with major concerns including weight increase for large-scale deployment and conformity for complex geometry structures. In this review, typical acousto-ultrasonic sensors made of different material systems are discussed, along with advantages and limitations. Moreover, advanced network installation methods have been introduced, including surface-mounting with pre-integrated networks on substrates and in situ printing, and embedding with composite layup and metal additive manufacturing. Sensor versatility and usage in multi-scale SHM techniques are then highlighted. Different wave/resonance modes are transmitted and received with corresponding elements and network designs. In conclusion, this systematic review mainly covers a collection of acousto-ultrasonic sensors, two modalities of network installation, and their employment with various SHM methods, hopefully providing a useful guide to building lightweight and conformal networks with passive or active-passive sensors, and developing complete and reliable SHM strategies by integrating different damage identification methods on multiple scales.

关键词： acousto-ultrasonic conformal installation lightweight sensing networks structural health monitoring

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5G entering into a new era [Guest Editorial]

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China Communications 2017年第12期14卷 iv-vi页

作者： Feifei Gao Changle Li Jun Fang Kaizhi Huang Zhi Quan Chengwen Xing Jianhua Zhang Zhongshan Zhang Liqiang Zhao Yulong Zou Department of Automation Tsinghua University Beijing China State Key Laboratory of Integrated Services Networks Xidian University University of Eletronic Science and Technology of China National Digital Switching System Engineering & Technological Research Center Zhengzhou China College of Information Engineering Shenzhen University School of Information and Electronics Beijing Institute of Technology Beijing University of Posts and Telecommunication School of Computer and Communication Engineering in the University of Science and Technology Beijing State Key Lab. of Integrated Service Networks Xidian University Nanjing University of Posts and Telecommunications (NUPT) Nanjing China

The ever increasing wireless data services, such as imaging, video, audio, multimedia, etc., have demands for the very high speed wireless communications and network, which are unfortunately a bottleneck when combining with the wireline core network. Users' are now expecting high quality of experience with low-cost devices, ubiquitous connectivity, energy efficiency, high reliability, or even ultra-low latency if a vehicle terminal is applied.

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Anthropogenically-induced atmospheric Pb cycle in low-latitude Asia since the Industrial Revolution recorded by high-resolution stalagmites

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Global and Planetary Change 2024年 232卷

作者： Wang, Tianli Yao, Pei-Hsuan Shen, Chuan-Chou Chawchai, Sakonvan Torfstein, Adi Sinha, Ashish Xu, Hai Yu, Tsai-Luen Lin, Fangyuan Wang, Xiqian Li, Dong Cheng, Hai Edwards, R. Lawrence An, Zhisheng Tan, Liangcheng State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an710061 China University of Chinese Academy of Sciences Beijing100049 China Department of Geosciences National Taiwan University Taipei10617 China Research Center for Future Earth National Taiwan University Taipei10617 China Department of Geology Faculty of Science Chulalongkorn University Bangkok10330 Thailand The Fredy and Nadine Herrmann Institute of Earth Sciences Hebrew University of Jerusalem Jerusalem91904 Israel The Interuniversity for Marine Sciences Eilat88103 Israel Department of Earth Science California State University Dominguez Hills Carson California90747 United States Institute of Surface-Earth System Science Tianjin University Tianjin300072 China Marine Industry and Engineering Research Center National Academy of Marine Research Kaohsiung80661 China Library of Chang'an University Xi'an710064 China Institute of Global Environment Change Xi'an Jiaotong University Xi'an710049 China Department of Earth and Environmental Sciences University of Minnesota Minneapolis55455 United States

The vigorous convective circulation in the low-latitude regions plays an important role in the global lead (Pb) cycle in the context of growing atmospheric Pb pollution. However, the brevity of reconstructions of regional Pb pollution limits our understanding of the low-latitude Pb cycle. Here, we presented continuous stalagmite-based Pb records from Klang (KL) cave in the Thai-Malay peninsula, and complementary stalagmite-based Pb records from Xianrenyan (XRY) cave in upwind region to explore the combined effects of atmospheric circulations and anthropogenic Pb emissions on the regional Pb cycle in the low-latitude regions. The analysis suggests that the XRY records reflect regional Pb pollutions in southern China, while the KL records could represent regional Pb recycling in low-latitude Asia, with the Pb pollutants coming from local and upwind territories (e.g., China, India). Moreover, the Pb variations in peninsular Thailand are significantly influenced by the East Asian Winter Monsoon (EAWM) strength with high (low) amount of Pb pollutants from the upwind territories transported to the study area during the strong (weak) EAWM. However, by comparing KL records with XRY records and other existing geological and meteorological records, we found the EAWM-induced Pb variations in the late 20th century were overwhelmed by unprecedented industry-derived Pb emissions from eastern China. Our findings suggest the ever-increasing anthropogenic emission could surpass the atmospheric circulation controls on the regional Pb cycle, offering a new perspective on understanding the relative influence of natural and anthropogenic forcing. © 2023 Elsevier B.V.

关键词： Caves

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Automated simulation for household road traffic noise exposure: Application and field evaluation in a high-density city

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Computers, Environment and Urban systems 2023年第1期104卷

作者： Guo, Mengdi Ni, Michael Y. Shyu, Rong-Juin Ji, John S. Huang, Jianxiang Department of Architecture School of Architecture Tianjin University Tianjin China Department of Urban Planning and Design the University of Hong Kong Hong Kong Special Administrative Region China The University of Hong Kong Shenzhen Institute of Research and Innovation 5/F Key Laboratory Platform Building Shenzhen Virtual University Park No.6 Yuexing 2nd Rd Nanshan Shenzhen518057 China School of Public Health LKS Faculty of Medicine The University of Hong Kong Hong Kong Special Administrative Region China The State Key Laboratory of Brain and Cognitive Sciences The University of Hong Kong Hong Kong Special Administrative Region China Urban Systems Institute the University of Hong Kong Hong Kong Special Administrative Region Hong Kong Department of System Engineering and Naval Architecture National Taiwan Ocean University Keelung Taiwan Vanke School of Public Health Tsinghua University Beijing China Sustainable High Density Cities Lab HKUrban Lab Faculty of Architecture the University of Hong Kong Hong Kong Special Administrative Region Hong Kong

Road traffic noise is a major nuisance and a risk factor of poor health for urban dwellers. A household's exposure to road traffic noise, especially in a high-density city, can be easily modified by the surrounding built environment, i.e., roads, traffic, buildings, and the topography. This leads to high variation in noise exposure between neighboring households. Existing simulation-based studies were limited in accounting for the variation of noise exposure at the household level, which restricted their applications in public health research involving large numbers of participants. This paper describes a novel simulation-based workflow to assess household traffic noise exposure, which consists of 1) a source model to assess road traffic noise levels, 2) a propagation model to simulate noise propagation in complex three-dimensional urban areas, 3) an automation algorithm to process large quantity of simulation runs and data. The workflow has been evaluated using field studies conducted in Sham Shui Po District, Hong Kong, with reasonably good agreements between simulated and measured data. It was then used to assess road traffic noise exposure for a sample of 6158 households enrolled in the FAMILY Cohort, representing Hong Kong's population dwelling in the dense urban areas. Results showed that 83% of sampled households have been exposed to excessive road traffic noise above the World Health Organization (WHO) standard, or 30% above the local standard. The estimated burden of disease is over 45,000 disability-adjusted life-years (DALYs) from both high annoyance and sleep disturbance for households in Hong Kong. The study has contributed to the methodologies and datasets in evaluating noise exposure in high-density cities, which can further support urban noise mitigation policies and planning and population-based health studies in the next steps. © 2023 Elsevier Ltd

关键词： Three dimensional computer graphics

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Spatial segmentation of Jiali Fault’s Holocene activity in the southeastern Tibetan Plateau

npj Natural Hazards

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npj Natural Hazards 2024年第1期1卷 1-12页

作者： Shijie Liu Hengxing Lan Langping Li Alexander Strom Han Bao College of Geological Engineering and Geomatics Chang’an University Xi’an 710054 Shaanxi China State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences 100101 Beijing China Research Institute of Energy Structures JSC “Hydroproject Institute” Moscow 125993 Russia School of railway Chang’an University Xi’an 710054 Shaanxi China

Jiali Fault plays a key role in the dextral fault system in the southeastern Tibetan Plateau. Although it forms a striking topographic lineament the Yigong and Parlung Rivers, evidence for faulting in the Holocene has been equivocal. In this study, Holocene sediment deformation caused by the Jiali Fault was discovered in the debris flow fan near the Guxiang barrier lake. A palaeo-earthquake event that occurred between 3494 and 2865 cal B.P. was revealed, as evidenced by geological, seismic, and radiocarbon dating investigations. On the basis of a compilation of dating results, the middle segment of the Jiali Fault was proposed to belong to a Holocene active fault. This was attributed to the strong influence of the continued north eastwards compression of the Indian Plate and the clockwise rotation of the eastern Himalayan syntaxis. These findings provide new insights into the tectonic implications and earthquake activity of the southeastern Tibetan Plateau.

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An easy approach to encapsulating Fe 3 O 4 nanoparticles in multiwalled carbon nanotubes

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Carbon 2010年第13期48卷 3975-3975页

作者： Jian-hua Li Ruo-yu Hong Guo-hua Luo Ying Zheng Hong-zhong Li Dong-guang Wei Department of Chemical Engineering and Key Laboratory of Organic Synthesis of Jiangsu Province Soochow University Suzhou 215123 China Kailuan Zhongrun Coal Chemical Com. Ltd. Seaport Economic Development Zone Tangshan 063611 China State Key Laboratory of Multiphase Reaction Institute of Process Engineering Chinese Academy of Sciences Beijing 100080 China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering Tsinghua University Beijing 100084 China Department of Chemical Engineering University of New Brunswick Fredericton Canada Center for Nanoscale System School of Engineering & Applied Science Harvard University 11 Oxford St. Cambridge MA 02139 USA

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Author Correction: Waveguide-integrated twisted bilayer graphene photodetectors

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Nature communications 2024年第1期15卷 5309页

作者： Qinci Wu Jun Qian Yuechen Wang Luwen Xing Ziyi Wei Xin Gao Yurui Li Zhongfan Liu Hongtao Liu Haowen Shu Jianbo Yin Xingjun Wang Hailin Peng Center for Nanochemistry Beijing Science and Engineering Center for Nanocarbons Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University 100871 Beijing P. R. China. Beijing Graphene Institute 100095 Beijing P. R. China. Academy for Advanced Interdisciplinary Studies Peking University 100871 Beijing P. R. China. State Key Laboratory of Advanced Optical Communications System and Networks School of Electronics Peking University 100871 Beijing P. R. China. School of Engineering Peking University 100871 Beijing P. R. China. Beijing Graphene Institute 100095 Beijing P. R. China. yinjb-cnc@***. Academy for Advanced Interdisciplinary Studies Peking University 100871 Beijing P. R. China. yinjb-cnc@***. State Key Laboratory of Advanced Optical Communications System and Networks School of Electronics Peking University 100871 Beijing P. R. China. yinjb-cnc@***. State Key Laboratory of Advanced Optical Communications System and Networks School of Electronics Peking University 100871 Beijing P. R. China. xjwang@***. Center for Nanochemistry Beijing Science and Engineering Center for Nanocarbons Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University 100871 Beijing P. R. China. hlpeng@***. Beijing Graphene Institute 100095 Beijing P. R. China. hlpeng@***. Academy for Advanced Interdisciplinary Studies Peking University 100871 Beijing P. R. China. hlpeng@***.

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Ultra-schnelle Präparation großflächiger Graphdiin-basierter Membranen mittels Alkin-Oberflächenmodifizierung

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Angewandte Chemie 2023年第17期135卷

作者： Xingda Yang Zhou Qu Sen Li Prof. Manhua Peng Prof. Chunxi Li Prof. Ruimao Hua Prof. Hongwei Fan Prof. Jürgen Caro Prof. Hong Meng College of Chemical Engineering Beijing University of Chemical Technology Beijing 100029 VR China Key Laboratory of Power Station Energy Transfer Conversion and System Ministry of Education School of Energy Power and Mechanical Engineering North China Electric Power University Beijing 102206 VR China State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 VR China Institute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover Callinstraße 3 A 30167 Hannover Deutschland

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Data Storage: Self‐Assembled Networked PbS Distribution Quantum Dots for Resistive Switching and Artificial Synapse Performance Boost of Memristors (Adv. Mater. 7/2019)

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Advanced Materials 2019年第7期31卷

作者： Xiaobing Yan Yifei Pei Huawei Chen Jianhui Zhao Zhenyu Zhou Hong Wang Lei Zhang Jingjuan Wang Xiaoyan Li Cuiya Qin Gong Wang Zuoao Xiao Qianlong Zhao Kaiyang Wang Hui Li Deliang Ren Qi Liu Hao Zhou Jingsheng Chen Peng Zhou National‐Local Joint Engineering Laboratory of New Energy Photovoltaic Devices Key Laboratory of Digital Medical Engineering of Hebei Province College of Electron and Information Engineering Hebei University Baoding 071002 P. R. China Department of Materials Science and Engineering National University of Singapore Singapore 117576 Singapore State Key Laboratory of ASIC and System School of Microelectronics Fudan University Shanghai 200433 China Key Laboratory of Microelectronic Devices and Integrated Technology Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China Giantec Semiconductor Inc. Shanghai 201203 China

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Erratum: Assessment of 180 nm double SOI technology for analog front-end design with back-gate voltage

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Journal of Instrumentation 2024年第10期19卷 E10001-E10001页

作者： Y. Li F. Liu B. Lu Z. Li S. Chen C. Zhang H. Zhu X. Yao J. Bu J. Wan Y. Xu S. Cristoloveanu B. Li J. Luo T. Ye Institute of Microelectronics of the Chinese Academy of Sciences 3 Beitucheng West Road Beijing 100029 China University of Chinese Academy of Sciences 19 A Yuquan Road Beijing 100049 China Key Laboratory of Science and Technology on Silicon Devices Chinese Academy of Sciences 3 Beitucheng West Road Beijing 100029 China State Key Laboratory of Particle Detection and Electronics of China 19 B Yuquan Road Beijing 100049 China Institute of High Energy Physics Chinese Academy of Science 19 B Yuquan Road Beijing 100049 China State key lab of ASIC and System Fudan University No. 825 Zhangheng Road Shanghai 200433 China College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunication No. 9 Wenyuan Road Nanjing 210023 China Guangdong Greater Bay Area Institute of Integrated Circuit and System No. 136 Kaiyuan Avenue Guangzhou 510535 China

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