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43篇 您的检索式:作者名="Xiangjiang"
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1Evidences of rapid erosion driven by climate in the Yarlung Zangbo (Tsangpo) Great Canyon,the eastern Himalayan syntaxis显示文摘Climate and tectonism are both particularly intense in the Yarlung Zangbo (Tsangpo) Great Canyon in the eastern Himalayan syntaxis,which is characterized by the most rapid landscape evolution of anywhere in the world.Thus,the eastern Himalayan syntaxis is one of the best locations to study the interactions between climate and tectonics.This paper investigates the cooling ages of the Doxong La-Baibung profile using apatite fission track (AFT) dating on 11 bedrock samples at elevations ranging from 4210 to 710 m.There are topographic,climatic,metamorphic,and thermochronological gradients in the profile,providing good conditions to study interactions between climate and tectonics.AFT ages ranged from 4.6±0.6 Ma to 1.7±0.3 Ma,and the mean fission track lengths ranged from 11.0 to 12.4 μm.It was found that the cooling rates revealed by AFT ages increased with decreasing elevation.However,the tendency of the cooling rates revealed by the 40 Ar-39 Ar ages was different from that indicated by the AFT ages.Moreover,for most districts of the eastern Himalayan syntaxis,the compiled AFT age distribution correlates well with the annual average precipitation,indicating the coupling of the cooling and erosion rates of the near-surface rock and precipitation.The geothermal history modeling results indicate an obvious increase in the cooling and erosion rate between 1.0 and 0.5 Ma.This age is consistent with other research findings for this time,when the vapor channel of the Yarlung Zangbo Great Canyon began to take effect.These evidences suggest that climate,especially precipitation,has acting as a key factor influencing the rapid cooling and erosion in the Yarlung Zangbo Great Canyon since 1-0.5 Ma.YU XiangJiang JI JianQing GONG JunFeng SUN DongXia QING JianChun WANG LiNing ZHONG DaLai ZHANG ZhiCheng 2011Chinese Science Bulletin2011,56,11:11
2The best quadrature formula based on Hermite information for the class KW^(2)[a,b]显示文摘The best quadrature formula has been found in the following sense: for a function whose norm of the second derivative is bounded by a given constant and the best quadrature formula for the approximate evaluation of integration of that function can minimize the worst possible error if the values of the function and its derivative at certain nodes are known.The best interpolation formula used to get the quadrature formula above is also found.Moreover,we compare the best quadrature formula with the open compound corrected trapezoidal formula by theoretical analysis and stochastic experiments.WANG Xinghua MI Xiangjiang 2005Science China Mathematics2005,48,1:4
3Wildlife conservation and management in China:achievements,challenges and perspectives显示文摘Dramatic global changes to the environment have wrought unprecedented reductions in biodiversity, with>28%species assessed by the International Union for Conservation of Nature(IUCN) under the threat of extinction[1]. China, as one of the world’s megadiverse countries, plays a critical role in global biodiversity conservation.Guangping Huang Xiaoge Ping Weihua Xu Yibo Hu Jiang Chang Ronald R.Swaisgood Jiang Zhou Xiangjiang Zhan Zejun Zhang Yonggang Nie Jie Cui Michael Bruford Zhihe Zhang Baoguo Li Li Zhang Zhi Lv Fuwen Wei 2021National Science Review2021,8,7:4
4超声速边界层内小激波的数值模拟(英文)显示文摘本文通过有限差分计算求解了NS方程,对超声速二维平板边界层的非线性稳定性问题进行了模拟。流场的来流马赫数为4.5。平板从尖前缘开始,流场在前缘处产生一道前缘激波。数值计算模拟了边界层对成倍频关系的双频扰动波的吸收问题。通过计算发现,在一定频率下边界层内可出现小激波。计算给出了小激波的发展过程。Shen Qing Zhang Hanxin Yuan Xiangjiang (China Aerodynamics Research and Development Center,Sichuan Mianyang 621000) 2000空气动力学学报2000,18,z1:2
5Fingerprint Identification and Its Applications in Information Security Fields显示文摘Zhou Shihai Lu Xiangjiang 0,,:1
6A single mutation underlying phenotypic convergence for hypoxia adaptation on the Qinghai-Tibetan Plateau显示文摘Dear Editor,The Qinghai-Tibet Plateau(QTP)is the highest and largest plateau in the world;its altitude exceeds 4500 m on average,posing great physiological challenges such as severe hypoxia for endemic wild mammals on the plateau.1 To cope with such a harsh environment,the phylogenetically distant QTP endemic mammals have independently evolved similar morphological and physiological traits.Donqming Xu Cuiping Yang Qiushuo Shen Shengkai Pan Zhen Liu Tongzuo Zhang Xin Zhou Menglong Lei Peng Chen Hui Yang Tao Zhang Yuanting Guo Xiangjiang Zhan Yongbin Chen Peng Shi 2021Cell Research2021,31,9:1
7Improved Initial Charging Capacity of Na-poor Na0.44MnO2 via Chemical Presodiation Strategy for Low-cost Sodium-ion Batteries显示文摘Sodium-ion batteries(SIBs)are promising for grid-scale energy storage applications due to the natural abundance and low cost of sodium.Among various Na insertion cathode materials,Na0.44MnO2 has attracted the most attention because of its cost effectiveness and structural stability.However,the low initial charge capacity for Na-poor Na0.44MnO2 hinders its practical applications.Herein,we developed a facile chemical presodiated method using sodiated biphenly to transform Na-poor Na0.44MnO2 into Na-rich Na0.66MnO2.After presodiation,the initial charge capacity of Na0.44MnO2 is greatly enhanced from 56.5 mA·h/g to 115.7 mA·h/g at 0.1 C(1 C=121 mA/g)and the excellent cycling stability(the capacity retention of 94.1%over 200 cycles at 2 C)is achieved.This presodiation strategy would open a new avenue for promoting the practical applications of Na-poor cathode materials in sodium-ion batteries.ZHOU Xi LAI Yangyang WU Xiangjiang CHEN Zhongxue ZHONG Faping Al Xinping YANG Hanxi CAO Yuliang 2021Chemical Research in Chinese Universities2021,37,2:1
8Integrated tool for microsatellite isolation and validation from the reference genome and their application in the study of breeding turnover in an endangered avian population显示文摘Accurate individual identification is required to estimate survival rates in avian populations.For endangered species,non-invasive methods of obtaining individual identification,such as using molted feathers as a source of DNA for microsatellite markers,are preferred because of less disturbance,easy sample preparation and high efficiency.With the availability of many avian genomes,a few pipelines isolating genome-wide microsatellites have been published,but it is still a challenge to isolate microsatellites from the reference genome efficiently.Here,we have developed an integrated tool comprising a bioinformatic pipeline and experimental procedures for microsatellite isolation and validation based on the reference genome.We have identified over 95000 microsatellite loci and established a system comprising 10 highly polymorphic markers(PIC value:0.49–0.93,mean:0.79)for an endangered species,saker falcon(Falco cherrug).These markers(except 1)were successfully amplified in 126 molted feathers,exhibiting high amplification success rates(83.9–99.7%),high quality index(0.90–0.97)and low allelic dropout rates(1–9.5%).To further assess the efficiency of this marker system in a population study,we identified individual sakers using these molted feathers(adult)and 146 plucked feathers(offspring).The use of parent and offspring samples enabled us to infer the genotype of missing samples(N=28),and all adult genotypes were used to ascertain that breeding turnover is a useful proxy for survival estimation in sakers.Our study presents a cost-effective tool for microsatellite isolation based on publicly available reference genomes and demonstrates the power of this tool in estimating key parameters of avian population dynamics.Xian HOU Pengwei XU Zhenzhen LIN Josephine D’URBAN-JACKSON AndrewDIXON Batbayar BOLD Jiliang XU Xiangjiang ZHAN 2018Integrative Zoology2018,13,5:1
9大熊猫保护区的生态系统服务价值显示文摘文章简介全球生态系统服务价值估计每年为125万亿美元,相似的国家和区域层面的评估也显示生态系统服务价值足以支撑我们的生活。所有的生态系统服务价值评估都肯定了生物多样性的重要作用.魏辅文 Robert Costanza Qiang Dai Natalie Stoeckl Xiaodong Gu Stephen Farber Yonggang Nie Ida Kubiszewski Yibo Hu Ronald Swaisgood Xuyu Yang Michael Bruford Youping Chen Alexey Voinov Dunwu Qi Megan Owen Li Yan Daniel C.Kenny Zejun Zhang Rong Hou Shiwei Jiang Hongbo Liu Xiangjiang Zhan Li Zhang Biao Yang Lianjun Zhao Xiaoguang Zheng Wenliang Zhou Yali Wen Heran Gao Wen Zhang 2019科学新闻2019,0,2:1
10Ionic liquids as mobile phase additives for separation of nucleotides in high‐performance liquid chromatography显示文摘Wen‐ZhuZhang Li‐JunHe XiaLiu Sheng‐XiangJiang 2010Chin. J. Chem2010,,:1
11A characteristic based shock-capturing scheme for hyperbolic problems显示文摘TU Guohuai YUAN Xiangjiang 2007Jour nal of Computational Physics2007,225,2:1
12Molecular censu- sing doubles giant panda population estimate in a key nature reserve显示文摘Zhan Xiangjiang Li Ming Zhang Zejun 2006Current Biology2006,16,12:1
13Direct energy conversion from xylose using xylose dehydrogenase surface displayed bacteria based enzymatic biofuel cell显示文摘Lin Xia Bo Liang Liang Li Xiangjiang Tang Ilaria Palchetti Marco Mascini Aihua Liu 2013Biosensors and Bioelectronics2013,,:1
14Spatial Distribution Characteristics of Negative Air Ion Concentrations in Danqinghe Experimental Forest,Harbin City显示文摘In recent years, air ions, especially of negative air ion has received a universal attention for its health function. The density of negative air ion has become one of the important indexes that measure the air quality grade. With the air ions counter made in Japan, the spatial distribution characteristics of negative air concentrations at specific time in Danqinghe Experimental Forest were measured and studied, Harbin City, and the air quality was assessed by using ion polarity ration (q) and air ion assessment index (CI). The results showed that at a given time, the average concentrations of negative air ions were different for different forest types, stand origins, tree species and different parts of Balan River. There was a clear difference in ion polarity ration and air ion assessment index, and the air quality in different environments were also quite different.MENG Xiangjiang HOU Yuanzhao LI Yumin Research Institute of Forestry Policy and Information, Chinese Academy of Forestry, Beijing 100091, P. R. China 2009Chinese Forestry Science and Technology2009,8,3:1
15Features Analysis of Lower Extremity Arterial Lesions in 162 Diabetes Patients显示文摘XiangJiang Guo YaXue Shi XiaoZhong Huang Meng Ye GuanHua Xue JiWei Zhang N. Cameron 2013Journal of Diabetes Research2013,,:1
16Paleomagnetism of Eocene and Miocene sediments from the Qaidam Basin: Implication for no integral rotation since the Eocene and a rigid Qaidam Block显示文摘Yu Xiangjiang Fu Suotang Guan Shuwei 2014Geochemistry Geophysics Geosystems2014,15,6:1
17Highdose folic acid improves endothelial function by increasing tetrahydrobiop- terin and decreasing homocysteine levels显示文摘Min Zhang Jinlin Wen Xiangjiang Wang 2014Mol Med Rep2014,1609,:1
18Adaptive Sliding Mode Control of Tri-layer Conjugated Poly- mer Actuators 显示文摘Xiangjiang Wang Alici G Nguyen C H 2013Smart Materials and Structures2013,22,02:1
19Performance comparison of different microbial DNA extraction methods on bird feces显示文摘Background:As an important player during food digestion,gut microbiota has attracted much attention in diet adaptation studies in birds.Microbiota extracted from feces has been widely used as a proxy for gut microbiota.Although several methods have been developed for microbial DNA extraction,their performances in the bird feces have not been systematacially evaluated yet.Methods:In this study,we applied three DNA extraction methods(Qiagen,MoBio and Bead)to extract DNA from feces of three avian dietary guilds(granivore,omnivore and carnivore),sequenced V4 region of 16S rRNA gene for each extract and evaluated the performances of DNA yield,DNA integrity,microbial composition,cell lysis capacity and alpha diversity for the three methods on each dietary guild.Results:Bead method was the best on the performance of both DNA yield and DNA integrity regardless of dietary guild.In granivore,microbial relative abundance at both species and phylum levels,alpha diversity and cell lysis capacity were comparable among all methods.In omnivore,Qiagen had the best performance on alpha diversity,fol-lowed by Bead and MoBio.There were small variations on microbial relative abundance at both species and phylum levels among different extraction methods.MoBio exhibited the best performance on cell lysis capacity.In carnivore,considerable variations were found on microbial relative abundance at both species and phylum levels.Qiagen had the best performance on alpha diversity,followed by MoBio and Bead.MoBio had the highest cell lysis capacity.Conclusions:DNA yield and integrity have no obvious impact on microbial composition,alpha diversity or cell lysis capacity.The microbiota results(e.g.,microbial composition,cell lysis capacity,alpha diversity)obtained from differ-ent methods are comparable in granivorous avian species but not in omnivorous or carnivorous birds.Either method could be used in granivore microbiota studies.For omnivores and carnivores,we recommend Qiagen method when the research purpose is microbial diversity and MoBio when gram-positive bacteria is the research target.Xian Hou Shengkai Pan Zhenzhen Lin Jiliang Xu Xiangjiang Zhan 2021Avian Research2021,12,2:1
20Anisotropy of magnetic susceptibility of Eocene and Miocene sediments in the Qaidam Basin, northwest China: Implication for Cenozoic tectonic transition and depocenter migration显示文摘Yu Xiangjiang Huang Baochun Guan Shuwei 2014Geochemistry Geophysics Geosystems2014,15,6:1
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