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26篇 您的检索式:作者名="YANG Donghong"
    题名 作者 年代 出处 被引量
1A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes显示文摘Thermal runaway has been a long-standing safety issue impeding the development of high-energydensity batteries. Physical safety designs such as employing circuit-breakers and fuses to batteries are limited by small operating voltage windows and no resumption of original working condition when it is cooled down. Here we report a smart thermoresponsive polymer electrolyte that can be incorporated inside batteries to prevent thermal runaway via a fast and reversible sol-gel transition, and successfully combine this smart electrolyte with a rechargeable Zn/a-MnO_2 battery system. At high temperature, battery operation is inhibited as a result of the increased internal resistance caused by the gelation of liquid electrolyte. After cooling down, the electrolyte is spontaneously reversed to sol state and the electrochemical performance of the battery is restored. More importantly, sol-gel transition enables the smart battery to experience different charge-discharge rates under various temperature levels, providing a smart and active strategy to achieve dynamic and reversible self-protection.Funian Mo Hongfei Li Zengxia Pei Guojin Liang Longtao Ma Qi Yang Donghong Wang Yan Huang Chunyi Zhi 2018Science Bulletin2018,63,16:13
2First light of the 1.8-m solar telescope–CLST显示文摘Large-aperture solar telescopes play an important role in solar observations and research,and require high temporal and spatial resolution[1].To solve some fundamental problems such as the solar dynamo,coronal heating,and the triggering of major solar eruptions,the spatial resolution for solar-atmosphere observation should reach at least 0.1 arcsec[2].ChangHui Rao NaiTing Gu XueJun Rao Cheng Li LanQiang Zhang JinLong Huang Lin Kong Ming Zhang YunTao Cheng Yi Pu Hua Bao YouMing Guo YangYi Liu JinSheng Yang LiBo Zhong ChangJun Wang Kai Fang XiaoJun Zhang DongHong Chen Cheng Wang XinLong Fan ZhiWu Yan KeLe Chen XiYa Wei Lei Zhu Hong Liu YongJian Wan Hao Xian WenLi Ma 2020Science China(Physics,Mechanics & Astronomy)2020,63,10:6
3Selection of Judging Indicators for Surface Morphology of Soil Crack under Different Development Degrees in Yuanmou Arid-Hot Valley Region显示文摘Quantification of complicated surface morphology of soil crack is a prerequisite and key to soil crack study. This paper takes soil crack quads in Yuanmou arid-hot valley region as examples, selecting several morphological indicators, and analyzes the soil crack's morpho-logical features under various development degrees. By statistic analysis, three quantitative indicators for surface morphology are selected, namely soil crack area density, area weighted mean fractal dimension and connectivity index R, which can not only express the development intensity of soil cracks, but also effectively describe its morphological complexity and connectivity. The research results set a good base for the establishment of soil crack assessment system in Yuanmou arid-hot valley region.XIONG Donghong LU Xiaoning XIAN Jishen ZHOU Hongyi YANG Zhongi 2008Wuhan University Journal of Natural Sciences2008,13,3:5
4Thermal properties of polyurethane elastomer with different flexible molecular chain based on para-phenylene diisocyanate显示文摘This work focuses on the relationship between flexibility of molecular chains and thermal properties of polyurethane elastomer(PUE), which laid the foundation of further research about how to improve thermal properties of PUE. A series of PUE samples with different flexibility of molecular chains was prepared by using 1,4-butanediol(1,4-BDO)/bisphenol-a(BPA) blends with different mole ratios including9/1, 8/2, 7/3, 6/4 and 5/5. As comparison, PUE extended with pure 1,4-BDO and BPA was also synthesized.These samples were characterized by differential scanning calorimetry(DSC), thermogravimetric analysis(TGA), dynamic mechanical analysis(DMA), etc. The results showed that with the decrease in flexibility of molecular chains the glass transition temperature(Tg) increased and low-temperature properties became worse. Besides, all samples had a certain degree of microphase separation, and soft segments in some samples were crystallized, i.e. the decreasing flexibility of molecular chains led to the impossibility of chains tightly packing and crystalline domains forming so that the degree of microphase separation decreased and the thermal properties became worse.Wanqing Lei Changqing Fang Xing Zhou Jiabin Li Rong Yang Zisen Zhang Donghong Liu 2017Journal of Materials Science & Technology2017,33,11:5
5A long-term record(1995-2019)of the dynamics of land desertification in the middle reaches of Yarlung Zangbo River basin derived from Landsat data显示文摘Widespread desertification in the middle part of the Yarlung Zangbo River(YZR)basin is threatening the sustain-able development of this region.To capture this process,a method was proposed for large-scale desertification monitoring by using Landsat images from 1995 to 2019.The method used an integrated classification method combined with a hierarchical decision tree and nearest neighbor classifiers.The spatio-temporal dynamics of the desertification pattern were analyzed to assist in the detection of possible driving forces.Using validation samples collected from Google Earth high-resolution images and field investigations,the overall accuracy of the classification in 2019 was 92.3%with a Kappa coefficient of 0.84.The major results were:(1)total sandy land area in 2019 was 734.1 km^(2),which accounted for 3.7%of the study area,prominently distributed along the wide river valleys and inlets of tributaries with a strip and discontinuous pattern.Sandy land tends to be distributed in the southern aspect regions with lower elevations and that are closer to rivers;(2)sandy land areas showed two temporal stages:a gradual increase of 102.4 km^(2)from 1995 to 2015 and a large decrease of 106.8 km^(2)from 2015 to 2019;(3)newly increased sandy land was distributed in the YZR Valley,while the revegetation on sandy land occurred mainly in the Lhasa River basin and some regions in the YZR Valley;and(4)increased sandy land area of 142.1 km^(2)was mainly distributed in the southern band of the two rivers.Correspondingly,revegetation on sandy land was more effective on the northern banks of the river valleys.These findings provide guidance for implementing vegetation recovery on sandy lands and provide important insights for maintaining sustainable development.Qiqi Zhan Wei Zhao Mengjiao Yang Donghong Xiong 2021Geography and Sustainability2021,2,1:4
6Rainfall infiltration on hilly slopes under various lithology and its effect on tree growth in the dry-hot valley显示文摘Revegetation is very difficult in dry-hot valleys in China. Rainfall infiltration capability on hilly slopes is one of the key factors determining soil moisture conditions and tree growth in the dry-hot valley. Low rainfall infiltration often results in soil drought on slopes under the dry-hot valleys climate. Rainfall infiltration capability varies greatly with the difference of slope lithologic porosity. The infiltration rates of five lithologic slope-types, Schist Slope, Grit Slope, Gravel Slope, the slightly eroded Mudstone Slope and the intensively eroded Mudstone Slope, are 1.40-8.67, 6.33, 0.69-2.20, 0.6-1.3 and 0.03-0.63 mm/min, respectively. With its viscid compact soil body and low infiltration capability which causes little infiltrating rainfall, mudstone slope can afford little effective supply to soil water and leads to serious drought of soil in dry seasons, resulting in cessation of growth or even wide-spread death of trees due to physiological damage for the excessive deficit of water in dry season and also the low productivity of stands. Hence, it is extremely difficult to restore vegetation on this type of slope. The other four lithologic slope-types, however, with well-developed soil crevice, high infiltration capability and thus more infiltrating rainfall, can afford more available soil water supply and the trees on them can obtain better growth and relatively higher productivity, compared with those on Mudstone Slope. Revegetation in dry-hot valleys is controlled by the soil moisture conditions of different slope-types, and it can be implemented by relying on the dominative life-form plant species, the suitable spatial arrangement of different life-forms of arbor-shrub-herb species, and the establishment of ecological community relationship between vegetation and soil moisture in habits. On the other hand, ground making measures for forestation and the runoff-collecting engineering measures to increase the rainfall infiltration are the major keys of revegetation techniques in dry-hot valleys.YANG Zhong, XIONG Donghong, ZHOU Hongyi & ZHANG Xinbao Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resources, Chengdu 610041, China 2003Science China(Technological Sciences)2003,46,z1:3
7Building durable aqueous K-ion capacitors based on MXene family显示文摘Obtaining stable aqueous K-ion capacitors is still challenging due to the cathode materials tended to structurally collapse after long-term cycling during large-radius K-ion insertion/extraction.In this work,three different typical MXene electrodes,i.e.,Nb_(2)C,Ti_(2)C,and Ti_(3)C_(2) were individually investigated upon their electrochemical behaviors for potassium-ion(K-ion)storage.All these MXene materials exhibited pseudocapacitive-dominated behaviors,fast kinetics,and durable K-ion storage,delivering superior performance compared with other K-ion host materials.According to the experimental results,it could be ascribed to the intrinsically large interlayer distance for K-ion transport and the superb structural stability of MXene even subjected to long-term potassiation/depotassiation process.Guojin Liang Xinliang Li Yanbo Wang Shuo Yang Zhaodong Huang Qi Yang Donghong Wang Binbin Dong Minshen Zhu Chunyi Zhi 2022Nano Research Energy2022,1,1:2
8Preparation and characterization of organic pigments and their fluorescence properties depending on bulk structure显示文摘Fluorescent pigments, based on the optical or electrooptical properties of dyes, are the main component in fluorescent coatings and inks. In this study, three kinds of dyes(Rhodamine B, Light Green SF Yellowish, Coumarin) with four different ratios(2.5 wt%, 3 wt%, 3.5 wt%, 4 wt%) were employed as luminophor,and the melamine-formaldehyde(MF) resin was used as curing resin to prepare fluorescent pigments in different color. Fourier transform infrared spectroscopy and X-ray diffractometry were carried out to analyze the structure of the fluorescent pigments. Scanning electron microscopy and particle size distribution were used to present the morphology of fluorescent pigments. UV–vis and fluorescence spectrum were used to demonstrate the optical properties. It can be concluded that, coumarin pigments possessed consecutive structure in MF resin while rhodamine B might be the best for the preparation of printing inks among the three kinds of dyes from the view of particle size. The TG results presented that all the pigments showed good thermal stability, which might possess potential application in high speed printing industry.Jie Du Rong Yang Changqing Fang Xing Zhou Shaofei Pan Wanqing Lei Jian Su Youliang Cheng Donghong Liu 2018Journal of Materials Science & Technology2018,34,11:2
9Evolving Models and Tools for Microglial Studies in the Central Nervous System显示文摘Microglia play multiple roles in such processes as brain development,homeostasis,and pathology.Due to their diverse mechanisms of functions,the complex sub-classifications,and the large differences between different species,especially compared with humans,very different or even opposite conclusions can be drawn from studies with different research models.The choice of appropriate research models and the associated tools are thus key ingredients of studies on microglia.Mice are the most commonly used animal models.In this review,we summarize in vitro and in vivo models of mouse and human-derived microglial research models,including microglial cell lines,primary microglia,induced microglia-like cells,transgenic mice,human-mouse chimeric models,and microglial replacement models.We also summarize recent developments in novel single-cell and in vivo imaging technologies.We hope our review can serve as an efficient reference for the future study of microglia.Yang Zhang Donghong Cui 2021Neuroscience Bulletin2021,37,8:2
10Simulated headward erosion of bank gullies in the Dry-hot Valley Region of southwest China显示文摘Zhengan Su Donghong Xiong Yifan Dong Jiajia Li Dan Yang Jianhui Zhang Guangxiong He 2014Geomorphology2014,,:1
11The distribution of and factors influencing the vegetation in a gully in the Dry-hot Valley of Southwest China显示文摘Yifan Dong Donghong Xiong Zheng’an Su Jiajia Li Dan Yang Liangtao Shi Gangcai Liu 2013Catena2013,,:1
12Document Reranking by Term Distribution and Maximal Marginal Relevance for Chinese Information Retrieval 显示文摘Lingpeng Yang Donghong Ji Munkew Leong 2002Information Processing and Management:2002,43,:1
13Effects of Land Use Change on the Ecosystem Services Value in the Dry-Hot Valley显示文摘The objective of the study reported here was to determine whether LANDSAT TM images could be used to quantify changes in land-use and ecosystem services in Yuanmou County. The sizes of six land use/land cover(LUCC) categories were estimated in Yuanmou County according to the LANDSAT TM images in the summer of 1986 and 2005. Coefficients published by Xie Gaodi and co-workers in 2003 were used to value changes in ecosystem services delivered by each land use/land cover category,and the ecosystem services sensitivity analysis was conducted to de-termine the effect of manipulating these coefficients on the estimated values. The im-portant results are summarized as followings. ① The estimated size of cultivated land,pasture land,water area and unused land decreased by 6.39%,1.35%,2.25% and 10.67% respectively between 1986 and 2005. By contrast,the estimated size of forest land and construction land increased by about 2.23% and 71.15% respectively between 1986 and 2005. ② The total ecosystem services value(EVS) of the study area in-creased from 2 142 132 609.46 yuan to 2 146 416 621.00 yuan,with the net increase of 4 284 011.54 yuan during the 20-year time period. ③ The coefficient sensitivity(CS) of the study are less than unity in all cases(CS ∧1) . This indicates that the total eco-system values estimated for the study area are relatively inelastic with respect to the ecosystem service coefficients. While this implies that our estimates are robust and the coefficient is reasonable,highly under or over valued coefficients can substantially affect the veracity of estimated changes in ecosystem service values overtime even when the CS are less than unity(CS ∧1) .ZHOU Hongyi XIONG Donghong YANG Zhong HE Xiubin 2007Wuhan University Journal of Natural Sciences2007,12,4:1
14Effect of specifically-adsorbed polysulfides on the electron transfer kinetics of sodium metal anodes显示文摘Room-temperature sodium-sulfur(RT Na-S)batteries hold great promise for large-scale energy storage applications owing to the high energy density and earth-abundance of Na and S.However,the dissolution and migration of sodium polysulfides,uncontrollable Na dendrite growth,and the lack of studies on Na electrodeposition kinetics have hindered the development of these batteries.Herein,we reveal the mechanism of sodium polysulfides on the Na plating/stripping kinetics using a three-electrode system.First,the kinetic behavior deviates from the commonly supposed Butler-Volmer model,which is well described by the Marcus model.In addition,the specific adsorption of polysulfides on the sodium electrode surface is a key factor influencing the kinetics.Higher-order polysulfides(S_(8)^(2-)and S_(6)^(2-))exhibit distinct specific adsorption behaviors because of their high adsorption energies compared to lower-order polysulfides(S_(4)^(2-)and S_(2)^(2-)).The electrostatic effect caused by specific adsorption can accelerate the kinetics,whereas the blocking effect can slow the kinetics.Thus,this competitive relationship enables low concentrations of high-order polysulfides to stimulate kinetics.This implies that a weak shuttle effect is beneficial for obtaining a stable Na deposition in RT Na-S batteries.An in-depth understanding of the Na electrodeposition kinetics provides beneficial clues for future metal sodium/electrolyte interface designs.Huazhao Yang Yu Li Xianxian Zhou Xiaotao Ma Donghong Duan Shibin Liu 2022Journal of Energy Chemistry2022,31,11:1
15Ground-layer adaptive optics for the New Vacuum Solar Telescope:Instrument description and first results显示文摘Ground-layer adaptive optics(GLAO)has shown its potential for use in solar observation owing to its wide field-of-view(FOV)correction.A high-order GLAO system that consists of a multiple direction Shack-Hartmann wavefront sensor(WFS),a realtime controller with a multi-CPU processor,and a 151-element deformable mirror was developed for the 1-m New Vacuum Solar Telescope at Yunnan Observatories,Chinese Academy of Sciences.A hexagonal microlens with 9×8 subapertures is employed in the WFS.The detection FOV is 42′′×37′′,in which 9(3×3)guide regions are extracted for multiple direction wavefront sensing with a frame rate of up to 2200 Hz.To our knowledge,this is the first professional solar GLAO system used as a regularly operating instrument for scientific observations.Its installation and adjustment were performed in the summer of 2021.In this article,a detailed account of the GLAO system and its first light results and a comprehensive analysis of the performance of the GLAO system are provided.The results show that this system can effectively improve the imaging quality after compensating for the wavefront aberration due to ground-layer turbulence.Lanqiang Zhang Hua Bao Xuejun Rao Youming Guo Libo Zhong Xian Ran Nanfei Yan Jinsheng Yang Cheng Wang Jiahui Zhou Ying Yang Yunyao Long Xinlong Fan Zhongyi Feng Donghong Chen Changhui Rao 2023Science China(Physics,Mechanics & Astronomy)2023,66,6:1
16Rapid assessment of trachoma in Hainan Province, China: Validation of the new World Health Organization methodology显示文摘Hansheng Liu Bo Ou Anne Paxton Puning Zhao Jingjing Xu Donghong Long Zhigang Li Jie Yang Liehong Zhong Thomas Lietman Linda Chen Louis D. Pizzarello 2002Neuro-Ophthalmology2002,,2:1
17Experimental Study on Diversity and Novelty of Interdomain Paths显示文摘QIN Donghong YANG Jiahai WANG Hui 2013Chinese Journal of Electronics2013,22,1:1
18Global influenza in cold phase of Pacific Decade Oscillation显示文摘Based on the study of the cold phase of the Pacific Decade Oscillation, pandemic influenza is related to climate. The relation of low temperature, Pacific Decade Oscillation, strongest earthquake, Influenza, hurricane and El Nino is researched in this study. In the cold period of Pacific Decade Oscillation, the strongest earthquake, hurricane with La Nina, Pandemic Influenza with El Nino will occur stronger and stronger. From 1950 to 1976, the strongest dust-storm is connected with Pandemic Influenza one by one. So, dust-storm is one of factors to spread pandemic influenza viruses.YANG Donghong YANG Debin YANG Xuexiang 2010Global Geology2010,13,2:0
19Effects of V addition on the mechanical properties at elevated temperatures in a γ”-strengthened NiCoCr-based multi-component alloy显示文摘Ni Co Cr-based multi-component alloys have drawn much attention due to their exceptional ductility and strain hardening capacity.However,insufficient strength-ductility synergy of NiCoCr alloy has always been an issue that prevents it from extensive applications.According to our previous research,the precipitation ofγ”phase can significantly improve the strength-ductility synergy of this alloy system at room temperature.In this study,the effects of V addition onγ”phase stability and high-temperature mechanical properties have been explicitly investigated.The results indicate that V addition can stabilize the metastableγ”phase in this alloy system and prevent it from transforming into a stableδphase at grain boundaries upon 650℃aging,resulting in improved mechanical properties at elevated temperatures.The specific strength ofγ”-strengthened multi-component NiCoCr-based alloy can reach up to 86.2 MPa gcmat 650℃,which is higher than those of Ni-based superalloys,IN 939 and Waspaloy.This work provides theoretical guidance for the novel design of γ”-strengthened alloy for high-temperature applications.Yunwei Pan Anping Dong Yang Zhou Dafan Du Donghong Wang Guoliang Zhu Baode Sun 2022Journal of Materials Science & Technology2022,,12:0
20Illustration instructions of GLOBAL GEOLOGY( English Edition)显示文摘1.Figures(or plates):They should be in line with international standards and should be concise and clear.The geological map and related sketch maps should contain the latitude and longitude,a scale,location(e.g.direction of the north)and legends,etc.The figures involving to the border lines must be on the basis of the latest geographic mapsHAN Yongji SUN Wei YANG Donghong 2015Global Geology2015,18,4:0
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