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| 1 | A General Law of Precise Asymptotics for the Complete Moment Convergence显示文摘The authors achieve a general law of precise asymptotics for a new kind of complete moment convergence of i.i.d. random variables, which includes complete con- vergence as a special case. It can describe the relations among the boundary function, weighted function, convergence rate and limit value in studies of complete convergence. This extends and generalizes the corresponding results of Liu and Lin in 2006. | Yong ZHANG Xiaoyun YANG Zhishan DONG | 2009 | Chinese Annals of Mathematics,Series B2009，30，1： | 17 |
| 2 | Rainfall interception by sand-stabilizing shrubs related to crown structure显示文摘On the edge of the Tengger Desert in northern China,revegetation has changed the landscape from moving dunes to stabilized dunes covered by shrubs,which further modifies the pattern of rainfall redistribution.To study rainfall interception loss by shrubs and its relationship to rainfall properties and crown structure,throughfalls passing through crowns of Artemisia ordosica Krash.and Caragana korshinskii Kom.were measured using nine PVC cups under the canopy of each of the two shrubs during 73 rain events over a three-year period,with total rainfall of 260.9 mm.Interception losses of gross rainfall by A.ordosica and C.korshinskii account for 15% and 27% of the total on a crown area basis,and 6% and 11% on a ground area basis,respectively.Individual throughfall(T) and interception(I) were significantly related to rainfall amount(Pg),duration(D),and intensity(R).Ratios of throughfall to rainfall(T/Pg) and interception to rainfall(I/Pg) were not only significantly related to Pg,D,and R,but also to shrub species,and interactions of species with crown volume(CV) and leaf area index(LAI).Under most rain events,interceptions by C.korshinskii with greater CV and LAI were significantly higher than those by A.ordosica,and more rainfall interception occurred at locations closer to the stems of the two shrubs.For C.korshinskii,I/Pg had a significant positive linear relation with CV and LAI,while T/Pg had a significant negative linear relation with them.CV has a greater influence on T/Pg and I/Pg than does LAI.Using a regression method,canopy water storage capacities are estimated to be 0.52 and 0.68 mm,and free throughfall coefficient to be 0.62 and 0.47 for A.ordosica and C.korshinskii,respectively. | ZhiShan Zhang 1*,XinRong Li 1,XueJun Dong 2,XiaoHong Jia 1,MingZhu He 1,HuiJuan Tan 1 1.Shapotou Desert Research and Experiment Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou,Gansu 730000,China.2.Central Grasslands Research Extension Center,North Dakota State University,Streeter,ND 58483,USA. | 2009 | Research in Cold and Arid Regions2009，1，2： | 9 |
| 3 | Switching emissions of two tetraphenylethene derivatives with solvent vapor, mechanical, and thermal stimuli显示文摘Two derivatives of tetraphenylethene (TPE) were synthesized through one step cross McMurry coupling reaction. Both luminogens exhibit aggregation-induced emission (AIE) and crystallization induced emission enhancement (CIEE). The emissions of both luminogens could be switched between blue and green through reversible modulation of morphology with thermal, organic solvent fuming and mechanical stimuli. Thus we provide a possible design strategy for emission switching materials. | SHI JunQing ZHAO WeiJun LI CuiHong LIU ZhengPing BO ZhiShan DONG YuPing DONG YongQiang TANG Ben Zhong | 2013 | Chinese Science Bulletin2013，58，22： | 2 |
| 4 | Precise Asymptotics in the Law of Large Numbers and the Law of Iterated Logarithm of Moving-Average Process Generated by ALNQD Sequences 显示文摘 | ZHANG Yong ZHAO Shishun DONG Zhishan | 2007 | Northeas Math J2007，23，6： | 1 |
| 5 | An almost sure central limit theorem for products of sums of partial sums under association显示文摘 | ZHANG Yongyang XIAO Yun DONG Zhishan | 2009 | J Math Anal Appl2009，35，5： | 1 |
| 6 | New chiral N-heterocyclic olefin bifunctional organocatalysis inα-functionalization ofβ-ketoesters显示文摘N-heterocyclic olefins(NHOs)possess an electron-rich and highly polarized C=C double bond due to the donating property of nitrogen atoms.This feature imparts exocyclic carbon atom of NHOs with strong basicity and high nucleophilicity.Although NHOs have been emerging as a new type of organocatalyst and ligand for metal complexes in organic synthesis,chiral NHOmediated highly enantioselective organic transformations were still elusive.Herein,we developed a new type of chiral aminederived C_(2)-symmetric NHOs and employed them as efficient chiral bifunctional organocatalysts for asymmetricα-functionalization ofβ-ketoesters.With as low as 0.1 mol%catalyst loading,the desired amination and trifluoromethylthiolation products were afforded in good yields with high enantioselectivities(up to 99%yield and 99%ee).Experimental studies and theoretical calculation disclosed that hydrogen-bonding interaction upon protonation and other weak interaction between substrate and catalyst were crucial for the enantiocontrol. | Sijing Wang Cefei Zhang Da Li Yuqiao Zhou Zhishan Su Xiaoming Feng Shunxi Dong | 2023 | Science China Chemistry2023，66，1： | 0 |
| 7 | Explore the Development and Application of Electrical Automation Control Systems显示文摘The development of electrical automation engineering control system is the foundation of modern industrial development in China,and also an important embodiment of the rapid development of modern technology.The application of electric automation technology can not only improve work efficiency,but also reduce enterprise cost.Based on this,the current situation and development trend of electrical automation engineering control system are studied for reference by relevant staff. | Zhishan Niu Yanfeng Zhao Junjun Hu Deyong Wang Lin Dong Lijun Wang | 2018 | Smart Construction Research2018，2，4： | 0 |
| 8 | Asymmetric Catalytic α-Selective Allylation of Ketones with Allyltrifluoroborates Using Dual-Functional Chiral In^(Ⅲ)/N,N'-Dioxide Complex显示文摘Comprehensive Summary Asymmetric catalytic allylation of halo-substituted ketones and ketoesters was accomplished to yield a number of homoallylic tertiary alcohols in excellent reactivity and enantioselectivity.In the presence of chiral In^(Ⅲ)/N,N-dioxide catalyst,unusual α-selective allylation ofγ-substituted potassium allyltrifluoroborates to ketones was demonstrated.The control experiments and DFT calculation reveal that chiral In^(Ⅲ)/N,N'-dioxide catalyst plays dual-tasking roles:the formation of allylindium species via transmetalation and Lewis acid activation.Apossiblereaction pathwaywas provided tounderstandα-selectivity overy-selectivity. | Xiaoxue Tang Zhishan Su Qianchi Lin Lili Lin Shunxi Dong Xiaoming Feng | 2022 | Chinese Journal of Chemistry2022，40，15： | 0 |
| 9 | Molecular Identification and Genetic Characterization of Public Health Threatening Ticks — Chongming Island, China, 2021–2022显示文摘Summary What is already known about this topic?Although ticks and tick-borne diseases are prevalent throughout China,there remains a knowledge gap regarding their biology and potential risk of distribution to human and animal populations on Chongming Island.The island,being China’s third largest and a crucial component in the ecological preservation of the Yangtze Delta region,has yet to be comprehensively studied in this context. | Siwei Fei Hanqing Zhao Jingxian Yin Li Wang Zhishan Sun Wenge Zhang Yan Zhang Ke Dong Shan Lyu Xiaokui Guo Xiao-nong Zhou Kokouvi Kassegne | 2023 | China CDC weekly2023，5，37： | 0 |
| 10 | THE LIMIT THEOREM FOR DEPENDENT RANDOM VARIABLES WITH APPLICATIONS TO AUTOREGRESSION MODELS显示文摘这份报纸学习顺序一的 autoregression 模型,在允许的一个一般时间系列背景弱依赖的革新。让 { X t } 一个线性过程被 X t = k=0 k 定义吗?t ? k { k, k 0 } 实数的一个序列是并且 { ?k,k=0, ?? | Yong ZHANG Xiaoyun YANG Zhishan DONG Dehui WANG | 2011 | Journal of Systems Science & Complexity2011，24，3： | 0 |
| 11 | Recent progress in hydrodynamic characteristics research and application of annular centrifugal extractors显示文摘The annular centrifugal extractor(ACE)integrates mixing and separation.It has been widely used in many industrial fields because of its low residence time,compact structure,and high mass transfer efficiency.Most of the literature has focused on flow instabilities,flow visualization,and computational fluid dynamics simulations.More recently,research on hydrodynamic behavior and structural optimization has received widespread attention.With the development of ACE technology,applications have been broadened into several new areas.Hence,this paper reviews research progress regarding ACE in terms of hydrodynamic characteristics and the structural improvements.The latest applications covering hydrometallurgy,nuclear fuel reprocessing,bio-extraction,catalytic reaction,and wastewater treatment are presented.We also evaluate future work in droplet breakup and coalescence mechanisms,structural improvements specific to different process requirements,scaling-up methods,and stability and reliability after scaling-up. | Hang Yang Xiaoyong Yang Xiao Dong Zhaojin Lu Zhishan Bai Yinglei Wang Fulei Gao | 2022 | Frontiers of Chemical Science and Engineering2022，16，6： | 0 |
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