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11篇 您的检索式:作者名="Zihong Chen"
    题名 作者 年代 出处 被引量
1Evolutionary biogeography on Ophiocordyceps sinensis:An indicator of molecular phylogeny to geochronological and ecological exchanges显示文摘The fungus Ophiocordyceps sinensis is endemic to the vast region of the Qinghai-Tibetan plateau(QTP).The unique and complex geographical environmental conditions have led to the 'sky island' distribution structure of O.sinensis.Due to limited and unbalanced sample collections,the previous data on O.sinensis regarding its genetic diversity and spatial structure have been deemed insufficient.In this study,we analyzed the diversity and phylogeographic structures of O.sinensis using internally transcribed spacer region(ITS) and 5-locus datasets by a large-scale sampling.A total of 111 haplotypes of ITS sequences were identified from 948 samples data of the fungus O.sinensis,with representing high genetic diversity,and 8 phylogenetic clades were recognized in O.sinensis.Both the southeastern Tibet and the northwestern Yunnan were the centers of genetic diversity and genetic differentiation of the fungus,and they were inferred as the glacial refugia in the Quaternary.Three distribution patterns were identified to correspond to the 8 clades,including but not limited to the coexistence of widely and specific local distributive structures.It also revealed that the differentiation pattern of O.sinensis did not fit for the isolation-by-distance model.The differentiation into the 8 clades occurred between 1.56 Myr and6.62 Myr.The ancestor of O.sinensis most likely originated in the late Miocene(6.62 Myr) in the northwestern Yunnan,and the Scene A-C of the Qinghai-Tibetan movements may have played an important role in the differentiation of O.sinensis during the late Miocene-Pliocene periods.Our current results provide a much clearer and detailed understanding of the genetic diversity and geographical spatial distribution of the endemic alpine fungus O.sinensis.It also revealed that the geochronology resulting from paleogeology could be cross-examined with biomolecular clock at a finer scale.Yongdong Dai Changkui Wu Feng Yuan Yuanbing Wang Luodong Huang Zihong Chen Wenbo Zeng Yao Wang Zhuliang Yang Pusheng Zeng Paul Lemetti Xuanxue Mo Hong Yu 2020Geoscience Frontiers2020,11,3:2
2Laser powder bed fusion of high-strength Sc/Zr-modified Al–Mg alloy:phase selection,microstructural/mechanical heterogeneity,and tensile deformation behavior显示文摘Laser powder bed fusion(L-PBF)of Sc/Zr-modified Al-based alloys has recently become a promising method for developing a new generation of high-performance Al alloys.To clarify the modification roles of Sc/Zr elements,an Al–4.66Mg–0.48Mn–0.72Sc–0.33Zr(wt.%)alloy was processed using L-PBF.The effect of the local solidification condition of the molten pool on the precipitation behavior of primary Al_(3)(Sc,Zr)was analyzed based on time-dependent nucleation theory.It was found that primary Al_(3)(Sc,Zr)inevitably precipitated at the fusion boundary,while its precipitation could be effectively suppressed in the inner region of the molten pool.This subsequently induced the formation of a heterogeneousα-Al matrix.After direct aging,the heredity of solidification microstructure introduced heterogeneous secondary Al_(3)(Sc,Zr)precipitates withinα-Al matrix.Owing to the inverse relationship between grain boundary strengthening and precipitation strengthening,the direct-aged sample with dual heterogeneous structures exhibited reduced mechanical heterogeneity,resulting in lowered hetero-deformation-induced hardening.The low strain-hardening capability in the direct-aged sample promoted necking instability while inducing a large Lüders elongation,which effectively improved the tensile ductility.Zihong Wang Xin Lin Nan Kang Jing Chen Hua Tan Zhe Feng Zehao Qin Haiou Yang Weidong Huang 2021Journal of Materials Science & Technology2021,,36:2
3Loss of E-cadherin promotes the growth, invasion and drug resistance of colorectal cancer cells and is associated with liver metastasis显示文摘Xiaobing Chen Yongsheng Wang Hongping Xia Qiwu Wang Xiaochun Jiang Zihong Lin Yuedong Ma Yang Yang Minghua Hu 2012Molecular Biology Reports2012,,:2
4Synthesis and properties of 1, 3, 4-oxadiazole-containing high-performance bismaleimide resin显示文摘Tang Haoyu Song Naiheng Gao Zihong Chen Xiaofang Fan Xinghe Xiang Qian Zhou Qifeng 2007Polymer2007,48,1:1
5MicroRNA-141 Regulates Smad Interacting Protein?1 (SIP1) and Inhibits Migration and Invasion of Colorectal Cancer Cells显示文摘Minghua Hu MicroGene Xia Xiaobing Chen Zihong Lin Yajun Xu Yuedong Ma Lei Su 2010Digestive Diseases and Sciences2010,,8:1
6Native useful vascular plants of China:A checklist and use patterns显示文摘Of all types of interactions between humans and plants,the utilization of plants by people is the most direct and influential.China has a long history of using native plants and a large body of recorded knowledge on uses.Here,we present an inventory of plant uses in China based on an extensive survey of the literature.Twelve categories of usage are recognized(medicinal,edible,etc.),these categories being chosen according to an integration of various current standards.A total of 50,521 use-citations were recorded,covering 10,808 species and infraspecies,representing 28%of the Chinese flora.Additional information is included in the dataset on taxonomy and endangerment status.Analysis of the data reveals that the eight plant families with the greatest numbers of species used in China,namely Asteraceae,Fabaceae,Rosaceae,Ranunculaceae,Poaceae,Lamiaceae,Orchidaceae,and Liliaceae,are also the top eight most species-rich Chinese plant families.However,there are some families that are overrepresented or under-representation in certain use categories,compared with their relative abundance in the total flora.There are indications that rare and endangered species are being subject to some degree of over-exploitation.A disproportionately high number of used species are Chinese endemics(3552 species,representing over 33%of used species).A total of 20%of used species have been classified as threatened nationally or globally,according to at least one of the various threat assessments that have been made for the Chinese flora.This comprehensive inventory of the useful plants of China,with relevant ethnobotanical information included,provides a baseline for further studies of plant resources.It will be useful in follow-up research.The scientific dataset it contains will be useful for the protection and sustainable utilization of plant resources in China.Huifu Zhuang Chen Wang Yanan Wang Tao Jin Rong Huang Zihong Lin Yuhua Wang 2021Plant Diversity2021,43,2:0
7Durable semi-crystalline interphase engineering to stabilize high voltage Ni-rich cathode in dilute ether electrolyte显示文摘Ethers are promising electrolyte solvents for secondary Li metal batteries because of their excellent reduction stability.However,their oxidation stability has been mostly relying on the high concentration approach,and limited progress has been made on building effective interphase to protect the cathode from the corrosion of the electrolyte.In this work,we construct a semi-crystalline interfacial layer on the surface of Li(Ni_(0.8)Co_(0.1)Mn_(0.1))O_(2)cathode that can achieve improved electrochemical stability in the highly corrosive chemical environment formed by the decomposition of ether molecules.Different from traditional brittle crystalline interphases,the optimized semi-crystalline layer with low modulus and high ionic conductivity can effectively relieve electrode strain and maintain the integrity of the interface layer.Due to this design,the continuous oxidation decomposition of ether-based electrolytes could be significantly suppressed and the battery shows outstanding cycling stability(84%capacity retention after 300 cycles).This article provides a solution to address the oxidation instability issue of ether-based electrolytes.Zhuangzhuang Cui Shunqiang Chen Qingshun Nian Yecheng Li Yawei Chen Bing-Qing Xiong Zihong Wang Zixu He Shuhong Jiao Xiaodi Ren 2023Journal of Energy Chemistry2023,,4:0
8CHINA'S GRAIN SUPPLY AND DEMAND IN THE 21ST CENTURY显示文摘This paper makes predictions for China’s grain production and its associated supply and demand situation up to 2030 by using input-occupancy-output techniques and systems science methodology. It argues that, taking into account its basic situation and world grain resources, China has no other choice but to count on self-sufficiency in terms of grain supply.Chen Xikang & Wang Zihong(Institute of Systems Science, CAS)Guo Ju-e(Shanxi Institute of Finance and Economics) 1996Bulletin of the Chinese Academy of Sciences1996,10,2:0
9Computational study of bubble coalescence/break-up behaviors and bubble size distribution in a 3-D pressurized bubbling gas-solid fluidized bed of Geldart A particles显示文摘A computational study was carried out on bubble dynamic behaviors and bubble size distributions in a pressurized lab-scale gas-solid fluidized bed of Geldart A particles.High-resolution 3-D numerical simulations were performed using the two-fluid model based on the kinetic theory of granular flow.A finegrid,which is in the range of 3–4 particle diameters,was utilized in order to capture bubble structures explicitly without breaking down the continuum assumption for the solid phase.A novel bubble tracking scheme was developed in combination with a 3-D detection and tracking algorithm(MS3 DATA)and applied to detect the bubble statistics,such as bubble size,location in each time frame and relative position between two adjacent time frames,from numerical simulations.The spatial coordinates and corresponding void fraction data were sampled at 100 Hz for data analyzing.The bubble coalescence/break-up frequencies and the daughter bubble size distribution were evaluated by using the new bubble tracking algorithm.The results showed that the bubble size distributed non-uniformly over cross-sections in the bed.The equilibrium bubble diameter due to bubble break-up and coalescence dynamics can be obtained,and the bubble rise velocity follows Davidson’s correlation closely.Good agreements were obtained between the computed results and that predicted by using the bubble break-up model proposed in our previous work.The computational bubble tracking method showed the potential of analyzing bubble motions and the coalescence and break-up characteristics based on time series data sets of void fraction maps obtained numerically and experimentally.Teng Wang Zihong Xia Caixia Chen 2022Chinese Journal of Chemical Engineering2022,35,4:0
10Pure and hybrid crowds in crowdfunding markets显示文摘Background:Crowdfunding has risen rapidly as a way of raising funds to support projects such as art projects,charity projects,and new ventures.It is very important to understand how crowds in the crowdfunding market are organized to carry out various activities.This study documents and compares two crowd designs for crowdfunding,namely pure crowds,where all crowd members participate as equals,and hybrid crowds,where crowd members are led by an expert investor.The hybrid design is rarely studied in the crowdfunding literature despite its large presence in equity crowdfunding.Methods:We examine industry practices from various countries in terms of crowd designs,review relevant literature on this topic,and develop a conceptual framework for choosing between pure and hybrid crowds.Results:We identify several inefficiencies of pure crowds in crowdfunding platforms and discuss the advantages of hybrid crowds.We then develop a conceptual framework that illustrates the factors for choosing between pure and hybrid crowds.Finally,we discuss the issue of how to manage and regulate lead investors in hybrid crowds.Conclusions:Pure crowds have several shortcomings that could be mitigated by a hybrid crowd design,especially when the proposed project suffers from greater risks,a high degree of information asymmetry,concerns about information leakage,and a high cost of managing the crowds.But for the hybrid crowd to work well,one must carefully design mechanisms for lead investor selection,compensation,and discipline.Our study contributes to the crowdfunding literature and to crowdfunding practice in multiple ways.Liang Chen Zihong Huang De Liu 2016Financial Innovation2016,2,1:0
11Interspecific association of sika deer in terrestrial animal communities of Liancheng National Nature Reserve, China显示文摘The prevention and control of invasive of alien species is an important work for nature reserves.This study analyzes the development trend of the alien species sika deer in Liancheng National Nature Reserve.From October 2019 to June 2020,3523 valid photos and videos of terrestrial animals were acquired from 130 camera traps,and sika deer were recorded in 21 photos from 13 traps.The survival of the sika deer population was investigated by means of morphological identification,population structure analysis,species relative abundance indices,and species spatial association analysis.A total of 13 sika deer individuals were identified by camera trapping,including two kids and three subadults representing the reproductive capacity of the population.Spatially,sika deer is not associated with any local species and was outside the spatial association network of terrestrial animals in Liancheng National Nature Reserve,indicating that the sika deer population has not been integrated into the local community and has failed to perform its ecological function.It is worth noting that the reserve provides habitat suitable for sika deer and that the population has adequate reproductive capacity.Due to the lack of large apex predators in the reserve,the population size of ungulates such as sika deer,red deer,and Siberian roe deer may expand and lead to population outbreaks and the associated problems for the ecosystem.To restore large-and medium-sized carnivores and avoid the population outbreak of the species,the present challenges require immediate attention in Liancheng National Nature Reserve.Tengwei SU Guofa CUI Zihong MAN Wentao LI Zhihao HUANG Jinfeng CHEN Minyan ZHAO 2023Integrative Zoology2023,18,4:0
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