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| 1 | Soil Erosion and Its Basic Characteristics at Karst Rocky-desertified Land Consolidation Area: A Case Study at Muzhe Village of Xichou County in Southeast Yunnan, China显示文摘Xichou County of Wenshan Zhuang and Miao Autonomous Prefecture in southeast Yunnan is one of the karst mountainous areas in southwest China showing typical rock desertification. During this study, we set up three soil erosion contrast test spots at Muzhe Village, Benggu Township, Xichou County, which was the birthplace of the Xichou rock-desertified land consolidation mode. The three spots included the terrace land spot (already consolidated land), sloping land spot (unconsolidated sloping land under rock desertification), and standard runoff spot (bare land spot). In 2007, a whole-year complete observation was conducted during the rainy season and 'rainfall-erosion' data were obtained for 32 times. Our analysis showed that during the entire observation period, the number of the rainfalls that led to soil erosion accounted for 34.04% of the number of all rainfalls and the amount of the rainfalls that led to soil erosion accounted for 84.17% of the total amount of all rainfalls. The average erosive rainfall standard in the three test spots was 11.0 mm, slightly higher than the 10 mm standard that has been adopted all over China, but lower than the 12.7 mm standard of the US and the 13.0 mm standard of Japan. According to single-factor analysis, the soil loss in the sloping land spot (L2) and that in the bare land spot (L3) are correlated to certain extent to many other factors, including the single precipitation (P), rainfall intensity during the maximum ten minutes (I10), rainfall intensity during the maximum 20 minutes (I20), rainfall intensity during the maximum 30 minutes (I30), rainfall intensity during the maximum 40 minutes (I40), and rainfall intensity during the maximum 60 minutes (I60). Among these factors, they are of the highest relativity with I60. According to double-factor analysis, both L2 and L3 are of good relativity with P and I60. According to multi-factor analysis, L2 and L3 are also of good relativity with seven rainfall indexes, namely, P, Ia (average rainfall intensity), I10, I20, I30, I40, and I60, with their related coefficient R reaching 0.906 and 0.914, respectively. The annual soil losses in the three test spots are widely different: 1030.70 t/km2·a in the terrace land spot, which indicates a low-level erosion; 12913.22 t/km2·a in the sloping land spot (unconsolidated spot), some 12.5 times than that in the terrace land spot, which indicates an ultra-high-level erosion; and 19511.67 t/km2·a in the bare land spot, some 18.9 times than that in terrace land spot, indicating an acute erosion. These figures fully show that the Xichou rock-desertified land consolidation mode plays a significant role in soil conservation. | YANG Zisheng YANG Longfei ZHANG Bosheng | 2010 | Journal of Mountain Science2010，7，1： | 14 |
| 2 | Method for Evaluating the Degrees of Land Use Sustainability of Mountainous County and its Application in Yunnan Province,China显示文摘The evaluation of sustainable land use is the key issue in the field of studying the sustainable land utilization. In general analysis, the sustainable land use is evaluated respectively from its ecological sustainability, economic sustainability and social sustainability in China and other countries in recent years. Although this evaluation is an important work, it seems insufficient and hard to comprehensively reflect the whole degree of land use sustainability. Thus, to make up this deficiency, this paper brings forward the evaluation indexes, which make it possible to quantitatively reflect the whole degree of land use sustainability, namely, the concept of 'degrees of overall land use sustainability' (DOS), and research and development of the method of measurement and calculation in DOS. Taking the evaluation of the degree of land use sustainability in county regions of Yunnan Province as the actual example for analysis, results are basically as follows:1) The degree of land use sustainability (DOS) is the ration index to organically and systematically integrate the degree of ecological friendliness (DEF), the degree of economic viability (DEV) and the degree of social acceptability (DSA), able to comprehensively reflect the whole sustainability degree of regional land use. 2) Based on the value of DOS, the grading system and standard for the sustainability of land use may be established and totally divided into five grades, namely, the high-degree sustainability, middle-degree sustainability, low-degree sustainability, conditional sustainability and non-sustainability. Meanwhile, the standard for distinguishing sustainability grades has also been confirmed so as to determine the nature of sustainability degrees in different grades. This makes the possibility for the combination of nature determination with ration in research result and provides with the scientific guideline and decision-making gist for better implementation of sustainable land use strategy.3) The practice in evaluation of sustainability degree in county regional land use in Yunnan shows that the value of the degree of land use sustainability (DOS) of whole Yunnan Province is only 58.39, belonging to the grade of low-degree sustainability. Two thirds of counties in the whole province represent the grade of 'conditional sustainability' and 'non-sustainability' in the sustainability of land use. Among these counties, 11.11 % shows 'non- sustainability'. The lowest degree of land use sustainability appears especially in the middle plateau mountain region of Northeast Yunnan, where the value of DOS in most counties (districts) is below 40 %, belonging to the grade of 'non-sustainability'. The sustainability degree in the karst mountainous region in lower-middle plateau mountain region in Southeast Yunnan is generally low and the value of sustainability degree (DOS) in most of the counties (cities and districts) is below 55. The value of sustainability degree (DOS) in most of the counties (cities and districts) in the north, west, northwest and southwest parts of Yunnan is below 55. This article also analyzes the reasons of low degree of sustainability in land use in Yunnan and puts forward the countermeasures to increase the degree of sustainability in land use in the whole province. | YANG Zisheng LIU Yansui TAO Wenxing XU Jingling ZHAO Qiaogui | 2008 | Journal of Mountain Science2008，5，2： | 10 |
| 3 | Rehabilitation and Sustainable Use Pattern of Rocky-desertified Land in Southwest China’s Poverty-stricken Karst Mountainous Areas——A Case Study in Benggu Township, Xichou County, Yunnan, China显示文摘The rocky desert in a karst area directly causes the lack of soil, water and forest, hence leading to the poverty there. In 1990, the villagers from the Muzhe Village in Benggu Township, Xichou County, Yunnan declared a war against rocky desert in an attempt to ask the fields for more yields. They invented a distinctive land rehabilitation and sustainable use pattern called “transforming heavenand earth” that had been practiced in Southwest China’s karst areas. The key mechanism of the pattern was to develop terraced fields with well conserved soil, water and fertility by exploding rocks in the fields, building stone walls, gathering more soil, and improving soil quality and productivity for the fields in combination with building of irrigation facilities and roads, as well as with forestation and agriculture structure adjustment. The purpose of the pattern was to alleviate poverty in the karst areas by improving soil productivity and promoting agriculturaldevelopment. A typical area was studied with the help of Participatory Rural Appraisal (PRA) and the pattern was carried out there for fifteen years, have produced excellent ecological benefits and good economic benefits. Its application in the area approved that it was a sustainable land use pattern for rocky desert areas. | YANG Zisheng LIU Yansui BAO Guangjing LI Zhiguo HE Yimei | 2006 | Journal of Mountain Science2006，3，3： | 10 |
| 4 | Graphene-based nanomaterials in biosystems显示文摘Graphene-based nanomaterials have emerged as a novel type of materials with exceptional physicochemical properties and numerous applications in various areas. In this review, we summarize recent advances in studying interactions between graphene and biosystems. We first provide a brief introduction on graphene and its derivatives, and then discuss on the toxicology and biocompatibility of graphene, including the extracellular interactions between graphene and biomacromolecules, cellular studies of graphene, and in vivo toxicological effects. Next, we focus on various graphene-based practical applications in antibacterial materials, wound addressing, drug delivery, and water purification.We finally present perspectives on challenges and future developments in these exciting fields. | Na Lu Liqian Wang Min Lv Zisheng Tang Chunhai Fan | 2019 | Nano Research2019，12，2： | 8 |
| 5 | The applications of hypervalent iodine(Ⅲ) reagents in the constructions of heterocyclic compounds through oxidative coupling reactions显示文摘Hypervalent iodine(Ⅲ)reagents have been vastly used in many useful organic transformations.In this review article,we highlight the strategies that used the common hypervalent iodine(Ⅲ)reagents as oxidants to synthesize the heterocyclic compounds,based on the patterns of bond formation during the construction of the heterocyclic backbones. | ZHENG ZiSheng ZHANG-NEGRERIE Daisy DU YunFei ZHAO Kang | 2014 | Science China Chemistry2014，57，2： | 6 |
| 6 | Integrated analysis of high-throughput sequencing data shows abscisic acidresponsive genes and miRNAs in strawberry receptacle fruit ripening显示文摘The perception and signal transduction of the plant hormone abscisic acid(ABA)are crucial for strawberry fruit ripening,but the underlying mechanism of how ABA regulates ripening-related genes has not been well understood.By employing high-throughput sequencing technology,we comprehensively analyzed transcriptomic and miRNA expression profiles simultaneously in ABA-and nordihydroguaiaretic acid(NDGA,an ABA biosynthesis blocker)-treated strawberry fruits with temporal resolution.The results revealed that ABA regulated many genes in different pathways,including hormone signal transduction and the biosynthesis of secondary metabolites.Transcription factor genes belonging to WRKY and heat shock factor(HSF)families might play key roles in regulating the expression of ABA inducible genes,whereas the KNOTTED1-like homeobox protein and Squamosa Promoter-Binding-like protein 18 might be responsible for ABA-downregulated genes.Additionally,20 known and six novel differentially expressed miRNAs might be important regulators that assist ABA in regulating target genes that are involved in versatile physiological processes,such as hormone balance regulation,pigments formation and cell wall degradation.Furthermore,degradome analysis showed that one novel miRNA,Fa_novel6,could degrade its target gene HERCULES1,which likely contributed to fruit size determination during strawberry ripening.These results expanded our understanding of how ABA drives the strawberry fruit ripening process as well as the role of miRNAs in this process. | Dongdong Li Wangshu Mou Rui Xia Li Li Christopher Zawora Tiejin Ying Linchun Mao Zhongchi Liu Zisheng Luo | 2019 | Horticulture Research2019，6，1： | 6 |
| 7 | Atomistic Surface Passivation of CH_(3)NH_(3)PbI_(3) Perovskite Single Crystals for Highly Sensitive Coplanar-Structure X-Ray Detectors显示文摘Organic-inorganic halide perovskites(OIHPs)are recognized as the promising next-generation X-ray detection materials.However,the device performance is largely limited by the ion migration issue of OIHPs.Here,we reported a simple atomistic surface passivation strategy with methylammonium iodide(MAI)to remarkably increase the ion migration activation energy of CH_(3)NH_(3)PbI_(3)single crystals.The amount of MAI deposited on the crystal surface is finely regulated by a self-assemble process to effectively suppress the metallic lead defects,while not introducing extra mobile ions,which results in significantly improved dark current stability of the coplanar-structure devices under a large electric field of 100Vmm^(-1).The X-ray detectors hence exhibit a record-high sensitivity above 700,000μC Gy^(-1)_(air) cm^(-2)under continuum X-ray irradiation with energy up to 50 keV,which enables an ultralow X-ray detection limit down to 1.5 nGy_(air)s^(-1).Our findings will allow for the dramatically reduced X-ray exposure of human bodies in medical imaging applications. | Yilong Song Liqi Li Weihui Bi Mingwei Hao Yifei Kang Anran Wang Zisheng Wang Hanming Li Xiaohui Li Yanjun Fang Deren Yang Qingfeng Dong | 2020 | Research2020，，1： | 5 |
| 8 | Microstructure Characteristics and Apparent Viscosity of Hypereutectic Al-24%Si Alloy Melt During Semi-solid State Stirring显示文摘The microstructural evolution and apparent viscosity of hypereutectic Al-24%Si alloy during semi-solid state shearing were studied with a Searte type viscometer. When the alloy melt was continuously stirred from 720℃ to eutectic temperature, the primary Si crystals were gradually changed from elongated platelets to near-spherical shapes. It was found that some nondendritic a-phase formed when the melt was stirred below 585℃. The experiment showed that the semi-solid stirring had strong effect on inhibiting the anisotropic growth of Si crystals during solidification. The apparent viscosity of the alloy melt increased slowly with the decreasing of temperature before the formation of nondendritic α-phase, which caused the dramatic increase of apparent viscosity. | Yanjun Li, Weimin Mao, Zisheng Zhen, Xueyou Zhong (Material Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China) | 2001 | Journal of University of Science and Technology Beijing2001，8，2： | 4 |
| 9 | Rheological Behavior of Semi-Solid AZ91D Alloy显示文摘The rheological behavior and microstructure of semi-solid AZ91D was studied using a Couette type viscometer. The results show that the apparent viscosity of semi-solid AZ91D increases with the cooling rate increasing when it is continuously cooled and mechanically stirred and the empiric relation of the apparent viscosity with the cooling rate and solid fraction at shearing rate 93.7 s-1 is expressed as η=[0.66 - 0.63e(-ε/3.01)]e(fs/0.14), and with the shearing rate and solid fraction at cooling rate 4℃/min is shown as η=0.55e(fs/0.11-γ/87.59), as well as the cooling rate and shearing rate have an important effect on the microstructure of the semi-solid AZ91D alloy slurry, and decreasing the cooling rate and increasing the shearing rate are favorable to the nondendritic evolution of the primary grains. | Weimin MAO, Zisheng ZHEN, Shijian YAN and Xueyou ZHONGSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China | 2004 | Journal of Materials Science & Technology2004，20，5： | 4 |
| 10 | Industrial Poverty Alleviation Model in Southwestern High-altitude Mountainous Areas of China——A Case Study of Industrial Poverty Alleviation of Xueshan Township in Luquan County of Yunnan Province through Planting Codonopsis pilosula显示文摘Due to the severe restrictions of natural conditions and ecological environment,high-altitude mountainous areas usually become the ' hard bones' in the battle against poverty. Xueshan Township,Luquan Yi and Miao Autonomous County of Yunnan Province,located in the alpine valley of Jinsha River,is a major township with wide and deep poverty,and the incidence of poverty is up to 45. 00%. In recent years,Xueshan Township has insisted on the battle against poverty,made effort to develop the Codonopsis pilosula industry,and successfully developed a road to poverty alleviation through C. pilosula industry,and formed a unique industrial poverty alleviation model by the end of 2018,the incidence of poverty dropped to 0. 74%. Based on field survey and interview,this paper analyzes and summarizes the specific practices,main results,practical experience and promotion and application measures of the poverty alleviation model of C. pilosula planting industry in Xueshan Township,in the hope of providing certain reference for the targeted poverty alleviation in similar areas in Yunnan Province and other provinces of China. | Zisheng YANG Renyi YANG Yanbo HE Chonghui LU En ZHU Yaohan PI Mingxin WU Ying XIONG | 2019 | Asian Agricultural Research2019，11，3： | 4 |
| 11 | A new technology for hard-rock tunneling based on drilling and hydraulic impact breaking显示文摘In order to realize the safety, high efficiency and rapidity of hard rock tunneling, we propose the drilling &hydraulic impact hard-rock tunneling(DHIHT) technology and method. Based on the LS-DYNA explicit module and APDL programming, the key parameters of DHIHT, including drilling spacing and drilling radius, were investigated. The simulation results show that: the drilling spacing should not exceed0.20 m-larger distances weaken the actual breaking effect; the best drilling radius is about 0.035 m, larger or smaller distances would both decrease the effect of drilling-hole free surfaces. The field impact breaking experiments were conducted in Baitaizi township granite quarry, Jinzhou, Liaoning province,China. The experiment results indicate that DHIHT is a feasible method for hard-rock tunneling, but its efficiency still needs to be further optimized and improved. | Long Risheng Sun Shaoni Lian Zisheng Liao Yaoyao Qin Xiaofeng | 2015 | International Journal of Mining Science and Technology2015，25，6： | 4 |
| 12 | A study on multifunction heat pipe type high efficient adsorption refrigerator using compound adsorbent-ammonia显示文摘A multifunction heat pipe adsorption refrigerator is designed, which uses solidified com- pound adsorbent of CaCl2 and activated carbon as adsorbent. Two work conditions, ice-maker driven by the exhaust heat from diesel engine and air-condi- tioning powered by solar energy, are studied. SCP (specific cooling power) and COP (coefficient of per- formance) for different conditions are analyzed. The optimum average SCP and COP for the refrigerator powered by waste heat of diesel engine are 770.4 W/kg and 0.39 at about -20℃ evaporating tem- perature. The optimum average SCP and COP for the refrigerator powered by solar energy are 524.2 W/kg and 0.27 at about 5.6℃ evaporating tempera- ture. | LU Zisheng WANG Ruzhu WANG Liwei CHEN Chuanjuan | 2006 | Chinese Science Bulletin2006，51，2： | 4 |
| 13 | Coupled Transport Phenomena in Corrugated Photocatalytic Reactors显示文摘弄皱的反应堆在要求的应用以他们的使用著名紫外暴露,在弄皱的隧道以内流动的媒介由此与光敏的催化剂反应,在表面上使妊娠了(即 TiO2 ) 。在这些系统的表演为给定的轻来源依赖于催化剂性质和反应,与在到催化剂表面的媒介和光子掉落事件以内的反应物的联合运输一起。为大量折皱角度,深度,和非想象力的本地集体转移和放射模式的试验性、计算的分析在制造期间介绍了(即褶层弯曲) 对这些系统的设计和优化因此综合。这个工作为与非理想的代表性的侧面,和本地人和用计算液体动力学和试验性的分析获得的全面集体转移率在弄皱的反应堆几何学的表面上决定事件精力分布探索技术。由在 TiO2 催化剂上为 4-chlorophenol 的相片降级检验反应动力学,表面区域的效果,有光子的精力发生重获,并且全面反应堆性能上的本地集体转移被介绍为反应堆的这些类型加亮优化担心。 | Adam A. Donaldson ZHANG Zisheng | 2011 | Chinese Journal of Chemical Engineering2011，19，5： | 3 |
| 14 | Soil Erosion Control Degree of the Project of Converting Farmland to Forest in Mountainous Areas at China's Southwest Border:A Case Study in Mangshi,Yunnan Province显示文摘There have been few in-depth quantitative studies on soil erosion control and the ecological effects of land use changes.Soil erosion is the first eco-environmental problem particularly in mountainous areas.A major problem in the conversion of farmland to forest is to control soil erosion and improve ecological environment and thus to improve land use sustainability.We report results of calculation and analysis on soil erosion from converted farmland parcels in city of Mangshi (near the SW frontier of China) and the surrounding areas before and after the nine-year (2000-2009) project of converting farmland to forest.There was increased water conservation effect,as a result of decreased soil erosion.The average erosion modulus of the farmland returning to eco-friendly uses decreased by 5,535.59 t/km2?a and the control degree of soil erosion modulus reached 71.00%.The increased soil erosion after the returning in the typical sample area 'did not drop,but increased' as the terraced fields decreased but sloping farmland increased and yet woodland decreased. | YANG Zisheng HAN Huali ZHAO Qiaogui | 2011 | Journal of Mountain Science2011，8，6： | 3 |
| 15 | Comprehensive comparison on the chemical metabolites and taste evaluation of tea after roasting using untargeted and pseudotargeted metabolomics显示文摘Roasting is a common manufacture technology for processing various teas.It is not only used in decreasing the water content of finished tea,but also improving the flavor of teas.In the present study,the roasted and non-roasted teas were compared by liquid-chromatography mass spectrometry and sensory evaluation.The roasted tea tasted less bitter and astringent.The content of main galloylated and simple catechins,caffeine and theobromine in roasted were significantly lower than non-roasted teas.Targeted taste-compounds metabolomics revealed that(-)-epigallocatechin gallate,kaempferol-glucose-rhamnose-glucose and(-)-epicatechin gallate were main contributors tightly correlated to astringent intensity.Flavonol glycosides including kaempferol-glucose,quercetin-glucose,kaempferol-glucose-rhamnose-glucose,and quercetin-glucose-rhamnose-glucose in roasted teas were also significantly less than non-roasted teas.To study the chemical changes during roasting,tea with a strong astringency was roasted under 80,100,120,140,and 160°C.With the increase of roasting temperature,the bitter and astringent intensity of tea was gradually decreased,but the main astringent compounds including(-)-epigallocatechin,(-)-epigallocatechin gallate and kaempferol/quercetin glycosides were irregularly varied with temperature.The Pearson correlation coefficient analysis suggested procyanidin B2,coumaroylquinic acids and gallotannins were tightly correlated to the astringent and bitter perceptions,while N-ethyl-2-pyrrolidonesubstituted flavan-3-ols were negatively correlated. | Zongde Jiang Zisheng Han Mingchun Wen Chi-Tang Ho You Wu Yijun Wang Na Xu Zhongwen Xie Jinsong Zhang Liang Zhang Xiaochun Wan | 2022 | Food Science and Human Wellness2022，11，3： | 3 |
| 16 | Screening ofα-glucosidase inhibitors in large-leaf yellow tea by offline bioassay coupled with liquid chromatography tandem mass spectrometry显示文摘Larger-leaf yellow tea(LYT)is a characteristic type of Chinese tea produced in Huoshan County,Anhui Province,which is made by mature leaves with stems.According to recent report,LYT showed competitive effects in anti-hyperglycemia in comparison to other teas such as green or black tea.However,the bioactive compounds of LYT are still undiscovered so far.For this purpose,5 fractions of LYT were prepared by sequential extraction.The in vitro bioassay results indicated that the ethyl acetate fraction of LYT had the strongest inhibitory effects onα-glucosidase andα-amylase.Fluorescence-quenching analysis and proteinbinding test revealed that the compounds of ethyl acetate fraction could inhibitα-glucosidase andα-amylase activities through binding to enzymes or other mechanisms.All chromatographic peaks of high-performance liquid chromatography(HPLC)of ethyl acetate fraction were separated and collected.The purified compounds were identified by liquid chromatography-mass spectrometry(LC-MS),and subsequently screened by calculating their inhibition ratio onα-glucosidase at the real concentration in LYT infusion.The results showed that(-)-epigallocatechin gallate,(-)-gallocatechin gallate,caffeine,N-ethyl-2-pyrrolidone-substituted flavan-3-ols were effective inhibitors forα-glucosidase. | You Wu Zisheng Han Mingchun Wen Chi-Tang Ho Zongde Jiang Yijun Wang Na Xu Zhongwen Xie Jinsong Zhang Liang Zhang Xiaochun Wan | 2022 | Food Science and Human Wellness2022，11，3： | 3 |
| 17 | Reconstruction Mode of Rural Dilapidated Houses in Alpine and Gorge Area of Southwest China——A Case Study of Scientific Identification and Precision Reconstruction of Rural Dilapidated Houses in Luquan County,Yunnan Province显示文摘The transformation of dilapidated houses in rural areas is not only a livelihood project related to the broad masses of rural people,but also a major project to win the battle against poverty. Luquan Yi and Miao Autonomous County,Yunnan Province,located in the high mountain and gorge area along Jinsha River,is one of the key counties of poverty alleviation and development with a wide range of poverty and a deep degree of poverty. The incidence of poverty is 22. 21%. Housing security is the focus,difficulty and emphasis of poverty alleviation in this county,the number of dilapidated houses is large,the type is complex,the transformation is difficult,and the implementation cost is high.Since the beginning of 2017,Luquan County has faced difficulties,explored in depth,pioneered and innovated,and completed the renovation of 54 801 dilapidated houses in an all-round way. It created a road full of characteristics and effectiveness of rural dilapidated housing transformation,and explored a set of effective scientific identification and accurate transformation models for rural dilapidated housing worthy of reference and promotion. Successful renovation of dilapidated houses,combined with industrial poverty alleviation,education poverty alleviation,health poverty alleviation and other accurate poverty alleviation measures,have made Luquan County win a decisive victory in the fight against poverty. By the end of December 2018,the incidence of poverty in the county had dropped to 0. 54%,and 115 poor villages( including 83 extremely poor villages) had successfully shaken off poverty. This paper analyzes and summarizes the concrete methods,main effects,characteristics and bright spots,successful experience,and reference significance of the scientific identification and precise transformation mode of rural dilapidated houses in this county,so as to provide a necessary reference for the transformation of rural dilapidated houses in Yunnan Province and even poor counties in similar provinces( cities and districts). | Zisheng YANG Renyi YANG Kaibo TIAN Zhenghong DAI Decai PAN Ying XIONG | 2019 | Asian Agricultural Research2019，11，2： | 3 |
| 18 | Three-Dimensional Hierarchical Ternary Nanostructures Bismuth/Polypyrrole/CNTs for High Performance Potassium-lon Battery Anodes显示文摘In recent years,the anode materials of bismuth(Bi)-based potassium ion batteries with high theoretical capacity and suitable potassium ion insertion potential have attracted extensive attention.However,due to the volume expansion of Bi,the performance of Bi-based anode materials is not ideal during potassium ion(de)intercalation.In order to solve these problems,we report a three-dimensional(3D)ternary bismuth nanoparticles/conductive polymers/carbon nanotubes(Bi/PPy/CNT)hybrid anode material for K-ion batteries.At a current density of 100 mA·g^(-1),its reversible capacity reaches 302 mAh·g^(-1) after 200 cycles,while it reaches 195.7 mAh·g^(-1) after 600 cycles at 1 A·g^(-1).Its excellent performance is attributed to the hydrogel network which provides a range of electron transport networks and high porosity.Carbon nanotubes are used as electron enhancers to reduce the volume expansion of Bi particles during the reaction.This study provides a prerequisite for expanding the application of 3D ternary materials. | Wenming Zhang Xiaoyu Chen Haoshan Xu Yiqun Liu Xiaohui Zhao Zisheng Zhang Ling Li | 2022 | Chinese Journal of Chemistry2022，40，13： | 2 |
| 19 | GENERALIZED PARETO DISTRIBUTION FIT TO MEDICAL INSURANCE CLAIMS DATA显示文摘. How to choose an optimal threshold is a key problem in the generalized Pareto distribution (GPD) model.This paper attains the exact threshold by testing for GPD,and shows that GPD model allows the actuary to easily estimate high quantiles and the probable maximum loss from the medical insurance claims data. | Ouyang Zisheng Xie Chi | 2006 | Applied Mathematics(A Journal of Chinese Universities)2006，21，1： | 2 |
| 20 | ZIF-7@carbon composites as multifunctional interlayer for rapid and durable Li-S performance显示文摘The notorious'shuttle effect'of polysulfide during charge-discharge process induces grievous capacity fading,while the sluggish polysulfide conversion kinetics significantly hinders the development of practically viable lithium-sulfur(Li-S)batteries.In this study,a novel ZIF-7@carbon composite with ZIF-7 sheets vertically rooted on carbon cloth was developed as multifunctional interlayer to address these issues.The composite shows directional layered structure with outstanding compactness,and thus can provide massive active sites for accelerated redox reactions.The pore channels are perpendicular to the square surface,resulting in extremely high utilization of one-dimensional channels.Therefore,this structure can not only maintain the structural stability during the charge-discharge process by providing enough space for volume expansion,but also contribute to efficient exposure and utilization of active sites for the physical/chemical adsorption and catalytic conversion of polysulfide.As a result,Li-S batteries with the as-developed interlayer deliver a considerable areal capacity of 4.75 mAh cm^(-2) at an elevated sulfur loading of 5.5 mg cm^(-2),and an impressive cyclability with an extremely low capacity-fading rate of merely 0.04%per cycle over 500 cycles at 1 C. | Xingbo Wang Yan Zhao Feichao Wu Shuming Liu Zisheng Zhang Zhaoyang Tan Xiaohang Du Jingde Li | 2021 | Journal of Energy Chemistry2021，30，6： | 2 |
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