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Assessment of prospective hazards resulting from the 2017 earthquake at the world heritage site Jiuzhaigou Valley, Sichuan, China

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Journal of Mountain Science 2018年第4期15卷 779-792页

作者： CHEN Xiao-qing CHEN Jian-gang cui peng YOU Yong HU Kai-heng YANG Zong-ji ZHANG Wei-feng LI Xin-po WU Yong Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and Environment Chinese Academy of Sciences (CAS) Chengdu 610041 China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101 China Youth Innovation Promotion Association CAS Beijing 100029 China

On August 8, 2017, a Ms = 7.0 magnitude earthquake occurred in the Jiuzhaigou Valley, in Sichuan Province, China(N: 33.20°, E: 103.82°). Jiuzhaigou Valley is an area recognized and listed as a world heritage site by UNESCO in 1992. Data analysis and field survey were conducted on the landslide, collapse, and debris flow gully, to assess the coseismic geological hazards generated by the earthquake using an unmanned aerial vehicle(UAV), remote-sensing imaging, laser range finders, geological radars, and cameras. The results highlighted the occurrence of 13 landslides, 70 collapses, and 25 potential debris flow gullies following the earthquake. The hazards were classified on the basis of their size and the potential property loss attributable to them. Consequently, 14 large-scale hazards, 30 medium-sized hazards, and 64 small hazards accounting for 13%, 28%, and 59% of the total hazards, respectively, were identified. Based on the variation tendency of the geological hazards that ensued in areas affected by the Kanto earthquake(Japan), Chi-chi earthquake(Taiwan China), and Wenchuan earthquake(Sichuan China), the study predicts that, depending on the rain intensity cycle, the duration of geological hazard activities in the Jiuzhaigou Valley may last over ten years and will gradually decrease for the following five to ten yearsbefore returning to pre-earthquake levels. Thus,necessary monitoring and early warning systems must be implemented to ensure the safety of residents,workers and tourists during the construction of engineering projects and reopening of scenic sites to the public.

关键词： 2017 Jiuzhaigou earthquake Disaster risk Geological hazard Landslide World heritage site Jiuzhaigou Valley

Plasma etched N-doped carbon nanotube encapsulating S co-doped N-doped Co nanoparticles for efficient oxygen reduction

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Plasma etched N-doped carbon nanotube encapsulating S co-dop...

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

中国化学会2019能源材料和缺陷化学研讨会

作者： peng Rao peng cui Li Yang Xinsheng Zhao School of Physics and Electronic Engineering Jiangsu Normal University

＜正＞Oxygen reduction reaction（ORR） is the important process in many energy conversion and storage devices such as fuel cells and metal-air batteries[1]. Platinum（Pt） and Pt-based materials have been high-efficient catalysts toward ORR because of high catalytic activity and good stability. But, noble metal materials suffer from high-cost and scarcity on the earth [2]. Therefore, it is still highly demanded for developing low-cost catalyst for ORR and facile mass production technique.

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-peng Wang Guo-cui Mao Hui-Lin Jiang Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： CO 2 methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface

Micromorphology of landslide soil Case study on the Jibazi landslide in Yunyang in the Three Gorges Region, China

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Journal of Mountain Science 2006年第2期3卷 147-157页

作者： HE Yurong cui peng LIAO Chaolin ZHANG Baohua ZHAO Yu Chengdu Institute of Mountain Hazards and Environment Chinese Academy of Science ＆ Ministry of Water Conservation Chengdu 610064 China

Abstract： Landslide is one of natural catastrophes affecting national economy and people＇s livelihood. There are many reports on the forming mechanism and control of landslide, but the studies on micromorphology of landslide soil are few. There are many potential landslides in the Three Gorges Region in China. In this paper, the micromorphologic features of the Jibazi landslide soil in Yunyang in the Three Gorges Region of the Yangtze River were studied using routine methods, that is, soil micromorphology, X-ray diffraetometer and scanning electron microscope. The main conclusions are as follow：（1） The basic micromorphologic characteristics of the landslide soil are that the fine soil particles are commonly cohesive matrix, finer and lower content of skeleton grains, the microstructures are mainly types of phenocrystal gelatinization, densely chap and fissure structure. As a result, these micromorphologic features affect the discharging of soil water, favor the movement of landslide body and provide an internal basis of materials for the formation of landslide. （2） The concept on the forming material of landslide was proposed, and types of optical beamed clay aggregates, Fe-Mn isolates and glassy material were found in landslide-belt soil, which were remarkably different from the natural soil formation, and had some scientific significance in analyzing the forming mechanism of landslide and distinguishing me landslide-belt soil. （3） Some special micromorphologic and sub-micromorphologic characteristics, such as fingerprint microstructure, clay beamed bedding microstructure, oppressive microstructure, moulage microstructure and extending hole microstncture, could bring useful micromorphologic evidences for the observation and forecasting of landslide. The results mentioned above will bring helpful micromorphologic evidences for distinguishing slide soil, analyzing the formation mechanism of landslide, and monitoring and forecasting the occurrence of landslide.

关键词： Landslide Microstructure forming material of landslide Three Gorges Region China

Computational Study of Ternary Devices: Stable, Low-Cost,and Efficient Planar Perovskite Solar Cells

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Nano-Micro Letters 2018年第3期10卷 144-154页

作者： Sajid Sajid Ahmed Mourtada Elseman Jun Ji Shangyi Dou Dong Wei Hao Huang peng cui Wenkang Xi Lihua Chu Yingfeng Li Bing Jiang Meicheng Li State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of Renewable Energy North China Electric Power University Electronic and Magnetic Materials Department Advanced Materials Division Central Metallurgical Research and Development Institute (CMRDI)

Although perovskite solar cells with power conversion efficiencies(PCEs) more than 22% have been realized with expensive organic charge-transporting materials, their stability and high cost remain to be addressed. In this work, the perovskite configuration of MAPbX(MA = CH_3 NH_3,X = I_3, Br_3, or I_2Br) integrated with stable and low-cost Cu:Ni Oxhole-transporting material, ZnO electron-transporting material, and Al counter electrode was modeled as a planar PSC and studied theoretically. A solar cell simulation program(wx AMPS), which served as an update of the popular solar cell simulation tool(AMPS: Analysis of Microelectronic and Photonic Structures), was used. The study yielded a detailed understanding of the role of each component in the solar celland its effect on the photovoltaic parameters as a whole. The bandgap of active materials and operating temperature of the modeled solar cell were shown to influence the solar cell performance in a significant way. Further, the simulation results reveal a strong dependence of photovoltaic parameters on the thickness and defect density of the light-absorbing layers. Under moderate simulation conditions, the MAPb Br_3 and MAPbI _2 Br cells recorded the highest PCEs of 20.58 and 19.08%, respectively, while MAPbI_3 cell gave a value of 16.14%.

关键词： Perovskite solar cells Copper-doped nickel oxide Zinc oxide Simulation

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硬质沥青对老化沥青及沥青混合料性能的影响

公路交通科技 2022年第9期39卷 33-42页

作者：崔鹏甘肃公航旅建设集团有限公司甘肃兰州730030 甘肃公航旅路业有限公司甘肃兰州730030

为改善热再生沥青混合料中RAP材料的用量,引入高模量沥青混合料的设计思想对RAP材料进行再生。区别于传统再生技术中利用再生剂(或软沥青)来恢复老化沥青变形能力的思路,通过制备特立尼达湖沥青(TLA)改性沥青作为新添加沥青进行沥青混... 详细信息

为改善热再生沥青混合料中RAP材料的用量,引入高模量沥青混合料的设计思想对RAP材料进行再生。区别于传统再生技术中利用再生剂(或软沥青)来恢复老化沥青变形能力的思路,通过制备特立尼达湖沥青(TLA)改性沥青作为新添加沥青进行沥青混合料的再生。首先,根据TLA、硬质沥青和再生沥青胶结料傅里叶变换红外光谱仪(FTIR)图和原子力显微镜(AFM)形貌图的变化,分析了TLA改性沥青的改性机理和微观结构及老化沥青的老化原理。其次,采用动态剪切流变(DSR)试验和弯曲梁蠕变劲度(BBR)试验对比研究了再生沥青胶结料的流变性能。最后,按照法国规范NF P 98-140要求设计了50%RAP和100%RAP材料掺量的热再生沥青混合料,测定了其高温、低温及疲劳特性,并与AC-20混合料性能进行了对比。结果表明:TLA的加入改变了原沥青结合料组成成分的比例,但没有产生新的官能团;TLA改性的硬质沥青胶结料具有更好的抗车辙性,而其疲劳和抗裂性低于老化沥青和基质沥青;采用高模量设计思想,在50%和100%RAP材料掺量下,可同时兼顾再生沥青混合料的高温与低温特性,并且其低温性能和抗疲劳性能均优于采用新沥青的AC-20混合料,实现了大旧料掺量和高性能的统一。

关键词：道路工程沥青路面试验分析高模量沥青混合料特立尼达湖沥青

中国山地灾害研究进展与未来应关注的科学问题

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地理科学进展 2014年第2期33卷 145-152页

作者：崔鹏中国科学院山地灾害与地表过程重点实验室成都610041 中国科学院水利部成都山地灾害与环境研究所成都610041

本文首先简要回顾了山地灾害研究与防治方面的新进展:认识了山地灾害的空间分布规律,建立了山洪、泥石流、滑坡危险性评价方法;发展了滑坡稳定性分析的原理和计算方法,建立了泥石流流体应力本构关系、泥石流流速流量和冲击力计算公式、... 详细信息

本文首先简要回顾了山地灾害研究与防治方面的新进展:认识了山地灾害的空间分布规律,建立了山洪、泥石流、滑坡危险性评价方法;发展了滑坡稳定性分析的原理和计算方法,建立了泥石流流体应力本构关系、泥石流流速流量和冲击力计算公式、粘性泥石流起动模型,提出了山洪和泥石流规模放大效应;基于降雨和地面成灾环境要素耦合分析,发展了山地灾害气象预报方法;基于对灾害物理特性的认识,研发了一系列灾害监测预警仪器、数字流域平台与智能手机网络相结合的山洪预警系统;发展了灾害治理工程技术,形成了适合欠发达地区特点的灾害治理技术体系。在此基础上,分析了在灾害形成、运动、预测预报、防治技术和风险管理等方面还需要进一步深化研究的问题,提出山地灾害学科今后面临的任务。最后,针对国家减灾需求和学科发展目标,提出灾害对生态的响应机制、气候变化对山地灾害的影响与巨灾预测、水—土耦合的细观结构力学、灾害风险的理论与方法、基于灾害形成理论的机理预报模式、灾害防治技术规程的健全等未来应该关注的科学技术问题。

关键词：山地灾害预测预报灾害防治风险管理中国

Deep learning for cross-region streamflow and flood forecasting at a global scale

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The Innovation 2024年第3期5卷 99-109页

作者： Binlan Zhang Chaojun Ouyang peng cui Qingsong Xu Dongpo Wang Fei Zhang Zhong Li Linfeng Fan Marco Lovati Yanling Liu Qianqian Zhang State Key Laboratory of Mountain Hazards and Engineering Resilience Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610299China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China Data Science in Earth Observation Technical University of Munich80333 MunichGermany State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China Department of Civil Engineering McMaster UniversityHamiltonON L8S 4L8Canada Chengdu University of Information Technology Chengdu 610225China

Streamflow and flood forecasting remains one of the long-standing challenges in *** physically based models are hampered by sparse parameters and complex calibration procedures particularly in ungauged *** propose a novel hybrid deep learning model termed encoder-decoder double-layer long short-term memory(ED-DLSTM)to address streamflow forecasting at global scale for all(gauged and ungauged)*** historical datasets,ED-DLSTM yields a mean Nash-Sutcliffe efficiency coefficient(NSE)of 0.75 across more than 2,000 catchments from the United States,Canada,Central Europe,and the United Kingdom,highlighting improvements by the state-of-the-art machine learning over traditional hydrologic ***,ED-DLSTM is applied to 160 ungauged catchments in Chile and 76.9%of catchments obtain NSE>0 in the best *** interpretability of cross-region capacities of ED-DLSTM are established through the cell state induced by adding a spatial attribute encoding module,which can spontaneously form hydrological regionalization effects after performing spatial coding for different *** study demonstrates the potential of deep leaning methods to overcome the ubiquitous lack of hydrologic information and deficiencies in physical model structure and parameterization.

关键词： forecasting flood flow

Recent progress and future perspectives of flexible metal‐air batteries

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SmartMat 2021年第4期2卷 519-553页

作者： Tingzhen Li Xinwen peng peng cui Ge Shi Wu Yang Zehong Chen Yongfa Huang Yongkang Chen Jinyuan peng Ren Zou Xiaoyan Zeng Jian Yu Jianyun Gan Zhiyuan Mu Yuling Chen Jiaming Zeng Juan Liu Yunyi Yang Yujia Wei Jun Lu State Key Laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhouChina Chemical Sciences and Engineering Division Argonne National LaboratoryLemontIllinoisUSA

With the rapid development of wearable and intelligent flexible electronic devices(FEDs),the demand for flexible energy storage/conversion devices(ESCDs)has also *** flexible metal‐air batteries(MABs)are expected to be one of the most ideal ESCDs due to their high theoretical energy density,cost advantage,and strong deformation *** the improvement of the device design,material assemblies,and manufacturing technology,the research on the electrochemical performance of flexible MABs has made significant ***,achieving the high mechanical flexibility,high safety,and wearable comfortability required by FEDs while maintaining the high performance of flexible MABs are still a daunting *** this review,flexible Zn‐air and Li‐air batteries are mainly exemplified to describe the most recent progress and challenges of flexible *** start with an overview of the structure and configuration of the flexible MABs and discuss their impact on battery performance and *** it focuses on the research progress of flexible metal anodes,gel polymer electrolytes,and air ***,the main challenges and future research perspectives involving flexible MABs for FEDs are proposed.

关键词： air cathode flexible electronic device flexible metal‐air battery gel polymer electrolytes metal anode