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| 1 | Formation history and protolith characteristics of granulite facies metamorphic rock in Central Cathaysia deduced from U-Pb and Lu-Hf isotopic studies of single zircon grains显示文摘The petrochemical as well as zircon U-Pb and Lu-Hf isotopic studies of granulite facies metamorphic rock from the Taoxi Group in eastern Nanling Range, Central Cathaysia indicate that its protolith is the sedimentary rock with low maturation index. The clastic materials are mostly from middle Neoproterozoic (~736 Ma) granitoid rocks with minor Neoarchaean and Paleoproterozoic rocks. The timing of this Neoproterozoic magmatism is in agreement with the second period of magmatism widespread surrounding the Yangtze Block. Hf isotopic data indicate that the Neoproterozoic granitoids resulted from the recycled Paleoproterozoic mantle-derived crustal materials. The sedimentary rock was deposited in Late Neoproterozoic Era, and carried into low crust in Early Paleozoic. The partial melting of the meta-sedimentary rock took place at about 480 Ma and subsequently granulite facies metamorphism occurred at ca. 443 Ma. The zircons forming during this time interval (Early Paleozoic) show large Hf isotope variations, and their -Hf(t) values increase from -13.2 to +2.36 with decreasing age, suggesting the injection of mantle-derived materials during partial melting and metamorphism processes in the Early Paleozoic. Calculation results show that this metamorphic rock, if evolved to Mesozoic, has similar isotopic composition to the nearby Mesozoic high Si peraluminous granites, implying that this kind of granulite facies metamorphic rock is probably the source material of some Mesozoic peraluminous granitoids in eastern Nanling Range. | YU Jinhai ZHOU Xinmin Y. S. O'Reilly ZHAO Lei W. L. Griffin WANG Rucheng WANG Lijuan CHEN Xiaomin | 2005 | Chinese Science Bulletin2005,50,18: | 35 |
| 2 | NUMERICAL SIMULATION OF ROUND TO OVAL ROLLING PROCESS显示文摘Three dimensional thermal-mechanical coupled elasto-plastic FEM has been used for simulation of round to oval single pass rolling. The analysis was conducted using MARC/AUTOFORCE1. 2 code. The material is assumed to be elasto-plastic and it obey the Von Mises yield criterion and Prandtl- Reuss rule. Deformation of the workpiece is simulated in a step-by-step manner,updating the coordinates of material points and the property after each step, so that both nonsteady-state and stendy-state deformation can be simulated. The heat transfter between the workpiece, the rolls, and enviroment and the heat generation due to plastic work and friction force, are considered in the analys- is.Predicted the deformation shape of the workpiece, distributions of strains, stresses, strain rates and temperatures, roll-separating force and roll torque are presented. | Y. W. Wang, Y. L. King, D. H. Yuan, S. G. Liu and Z. Y. Yu 1 ) University of Science and Technology Beijing, Beijing 100083, China 2) Daye Special Steel Co., Huangshi 435001, China | 2000 | Acta Metallurgica Sinica(English Letters)2000,13,2: | 27 |
| 3 | Amplitudes, rates, periodicities and causes of temperature variations in the past 2485 years and future trends over the central-eastern Tibetan Plateau显示文摘Amplitudes, rates, periodicities, causes and future trends of temperature variations based on tree rings for the past 2485 years on the central-eastern Tibetan Plateau were analyzed. The results showed that extreme climatic events on the Plateau, such as the Medieval Warm Period, Little Ice Age and 20th Century Warming appeared synchronously with those in other places worldwide. The largest amplitude and rate of temperature change occurred during the Eastern Jin Event (343-425 AD), and not in the late 20th century. There were significant cycles of 1324 a, 800 a, 199 a, 110 a and 2-3 a in the 2485-year temperature series. The 1324 a, 800 a, 199 a and 110 a cycles are associated with solar activity, which greatly affects the Earth surface temperature. The long-term trends (>1000 a) of temperature were controlled by the millennium-scale cycle, and amplitudes were dominated by multi-century cycles. Moreover, cold intervals corresponded to sunspot minimums. The prediction indicated that the temperature will decrease in the future until to 2068 AD and then increase again. | LIU YU CAI QiuFang SONG HuiMing AN ZhiSheng Hans W. LINDERHOLM | 2011 | Chinese Science Bulletin2011,56,28: | 23 |
| 4 | USING DISPLACED CONE REPRESENTATION IN DEA MODELS FOR NONDOMINATED SOLUTIONSIN MULTIOBJECTIVE PROGRAMMING显示文摘Concepts revolving around 'displaced cones' are used to extend the ideas of nondominated solutions in multiobjective programming. Necessary and sufficient conditions are formed around the additive models of DEA to idelltify nondominated solutions. This provdes a basis for effecting contacts with other disciplines and other parts of DEA. | W. W. Cooper (Graduate School Of Business, University of Texas at Austin, Austin, Texas, USA 78712-1174)WEI Quanling (Department of Information Management, People’s University of China, Beliing 100872, China) G. Yu (Department of MSIS, University of Texas | 1997 | Systems Science and Mathematical Sciences1997,10,1: | 17 |
| 5 | Nature:死亡的肿瘤细胞释放出胞内钾离子来阻断免疫系统显示文摘在一项新的研究中。来自美国国家癌症研究所和英国巴布拉汉研究所的研究人员发现当肿瘤组织死亡时从它当中泄露出来的一种无机离子起着阻止抗肿瘤免疫细胞发挥功能的作用。这一发现为开发调动免疫系统抵抗癌症的疗法提供一种新的方法。相关研究结果在线发表在Nature期刊上。 | Robert Eil, Suman K. Vodnala, David Clever, Christopher A. Klebanoff, Madhusudhanan Sukumar, Jenny H. Pan, Douglas C. Palmer, Alena Gros, Tori N. Yamamoto, Shashank J. Patel, Geoffrey C. Guittard, Zhiya Yu, David S. Schrump, W. Marston Linehan, Nicholas P. Restifo Christopher A. Klebanoff Valentina Carbonaro, Klaus Okkenhaug, Rahul Roychoudhuri | 2016 | 现代生物医学进展2016,16,31: | 12 |
| 6 | Nature:研究鉴定出蛋白Nlrp9b抵抗轮状病毒感染机制显示文摘轮状病毒(rotavirus)是婴儿和儿童罹患肠胃炎和腹泻的一种最为常见的原因,每年导致全世界大约21.5万人死亡。它是高度传染性的和潜在致命性的。这种病毒特异性地感染宿主小肠中的肠上皮细胞,并且已进化出抵抗干扰素和NF-KB信号的策略来躲避免疫系统,这就提出一个问题:其他的宿主因子是否参与肠道粘膜中的抗病毒反应。不过,针对体内(特别是通过NLR炎性体)检测和限制肠道病毒的机制,人们知之甚少。 | Shu Zhu, Zheng Wei, Noah W. Palm, Yi Yang, Hua Yu, Hua-Bing Li, Geng Wang, Xuqiu Lei, Marcel R. de Zoete, Jun Zhao, Yunjiang Zheng, Haiwei Chen, Liang Shan, Richard A. Flavell Siyuan Ding, Ningguo Feng, Harry B. Greenberg Siyuan Ding, Harry B. Greenberg Penghua Wang, Yujiao Zhao Wen Pan, Jun Lu Jun Zhao, Yuval Kluger Kellie A. Jurado, Clara Abraham, Erol Fikrig Erol Fikrig, Richard A. Flavell | 2017 | 现代生物医学进展2017,17,27: | 10 |
| 7 | Complex networks theory for analyzing metabolic networks显示文摘One of the main tasks of post-genomic informatics is to systematically investigate all mole- cules and their interactions within a living cell so as to understand how these molecules and the interactions between them relate to the function of the organism, while networks are appropriate abstract description of all kinds of interactions. In the past few years, great achievement has been made in developing theory of complex networks for revealing the organizing prin- ciples that govern the formation and evolution of various complex biological, technological and social networks. This paper reviews the accomplishments in constructing genome-based metabolic networks and describes how the theory of complex networks is applied to analyze metabolic networks. | ZHAO Jing YU Hong LUO Jianhua CAO Z. W. LI Yixue | 2006 | Chinese Science Bulletin2006,51,13: | 10 |
| 8 | Nature:通过控制血管生长来开发治疗癌症等多种疾病的新型疗法显示文摘最近,一项刊登在国际杂志Nature上的研究报告中,来自耶鲁大学的研究人员通过研究揭示了如何通过控制血管发育来帮助开发治疗心血管疾病以及癌症的新型疗法。 | Yu, Pengchun Wilhelm, Kerstin Dubrac, Alexandre Tung, Joe K. Alves, Tiago C. Fang, Jennifer S. Xie, Yi Zhu, Jie Chen, Zehua De Smet, Frederik Zhang, Jiasheng Jin, Suk-Won Sun, Lele Sun, Hongye Kibbey, Richard G. Hirschi, Karen K. Hay, Nissim Carmeliet, Peter Chittenden, Thomas W. Eichmann, Anne Potente, Michael Simons, Michael | 2017 | 现代生物医学进展2017,17,22: | 9 |
| 9 | Tree-ring-based annual precipitation reconstruction in Kalaqin, Inner Mongolia for the last 238 years显示文摘A tree-ring-width chronology of Pinus tabulaeformis from Kalaqin, Inner Mongolia was developed using modern dendroc hronological techniques. Based on the results of correlation function analysis, the total precipitation from the previous August to current July was reconstructed for 1771-2008 AD with an explained variance of 49.3%. The reconstruction correlated well with the dryness/wetness series derived from historical documents, as well as the precipitation reconstruction of the Chifeng-Weichang region. There were eight intervals with greater precipitation than the average (associated with the strong East Asian summer monsoon) and seven intervals lower than the average (weak monsoon). A power spectrum analysis showed that there were 120 a, 80 a, 8 a and 2 a periodicities. | LIU Yu WANG CaiYong HAO WenJun SONG HuiMing CAI QiuFang TIAN Hua SUN Bo Hans W. LINDERHOLM | 2011 | Chinese Science Bulletin2011,56,28: | 9 |
| 10 | Structural, optical, and electrical properties of phase- controlled cesium lead iodide nanowires显示文摘铯铅碘化物(在它的黑 perovskite 阶段的 CsPbI 3), ,为光电的应用有合适的 bandgap 和高量效率。然而, CsPbI 3 趋于到 crystalize 进一个黄 non-perovskite 阶段,它有差的 optoelectronic 性质,在房间温度。因此,在 CsPbI 3 控制阶段转变为这材料的实际申请是批评的。这里,我们报导一个维的 CsPbI 3 nanowires 和他们的相应结构、光、电的性质的阶段转变的系统的研究。我们通过快速的热熄灭从 non-perovskite 黄阶段显示出 perovskite 黑人阶段 CsPbI 3 nanowires 的形成。transformed 以后黑阶段 CsPbI 3 nanowires 展览与一从 2.78 ~ 1.76 eV 缩小 bandgap 增加了光致发光排放紧张。perovskite nanowires 是光导的并且在房间温度显示出快 photoresponse 和优秀稳定性。这些有希望的光、电的性质为许多 nanoscale optoelectronic 设备使 perovskite CsPbI3 nanowires 吸引人。 | Minliang Lai Qiao Kong Connor G. Bischak Yi Yu Letian Dou Samuel W. Eaton Naomi S. Ginsberg Peidong Yang | 2017 | Nano Research2017,10,4: | 8 |
| 11 | APASL consensus statements and management algorithms for hepatitis C virus infection显示文摘 | Masao Omata Tatsuo Kanda Ming-Lung Yu Osamu Yokosuka Seng-Gee Lim Wasim Jafri Ryosuke Tateishi Saeed S. Hamid Wan-Long Chuang Anuchit Chutaputti Lai Wei Jose Sollano Shiv Kumar Sarin Jia-Horng Kao Geoffrey W. McCaughan | 2012 | Hepatology International2012,,2: | 8 |
| 12 | Dynamic behaviour of axially moving nanobeams based on nonlocal elasticity approach显示文摘In this article,transverse free vibrations of axially moving nanobeams subjected to axial tension are studied based on nonlocal stress elasticity theory.A new higher-order differential equation of motion is derived from the variational principle with corresponding higher-order,non-classical boundary conditions.Two supporting conditions are investigated,i.e.simple supports and clamped supports.Effects of nonlocal nanoscale,dimensionless axial velocity,density and axial tension on natural frequencies are presented and discussed through numerical examples.It is found that these factors have great influence on the dynamic behaviour of an axially moving nanobeam.In particular,the nonlocal effect tends to induce higher vibration frequencies as compared to the results obtained from classical vibration theory.Analytical solutions for critical velocity of these nanobeams when the frequency vanishes are also derived and the influences of nonlocal nanoscale and axial tension on the critical velocity are discussed. | C. W. Lim C. Li Ji-Lin Yu | 2010 | Acta Mechanica Sinica2010,26,5: | 7 |
| 13 | EFFECTS OF HIGH-DENSITY CURRENT PULSES ON WORK HARDENING BEHAVIORS OF AUSTENITE STAINLESS STEEL IN WIRE-DRAWING DEFORMATION显示文摘The influence of high-density pulsing current on the work-hardening behavior of H0Cr17Ni6Mn3 and 1Cr18N19 stainless steels in wire-drawing deformation processes has been studied. It was found that the drawing stress and the work-hardening rate of wires were significantly reduced by applying current pulses in drawing process. The work-hardening behavior of the multi-courses drawing deformation can be well de scribed by Hollomon formula σ = κεn. With the application of current pulses in drawing deformation, the work-hardening exponents of H0Cr17Ni6MnS steel wires and 1 Cr1 8Ni9 stainless steel wires were reduced by 33% and 45%, respectively, and their work-hardening coefficients were reduced by 41% and 47%, respectively. It was also found that the work-hardening coefficient of wires was reduced with the increment of the frequency of current pulses, while the work-hardening exponents of both steels were insensitive to the pulsing frequency. | K.F. Yao, P. Yu, J. Wang, W. Fang and M.X. Zheng Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China | 2001 | Acta Metallurgica Sinica(English Letters)2001,14,5: | 7 |
| 14 | How does innovation's tail risk determine marginal tail risk of a stationary financial time series?显示文摘We discuss the relationship between the marginal tail risk probability and the innovation'stail risk probability for some stationary financial time series models.We first give the main results on the tail behavior of a class of infinite weighted sums of random variableswith heavy-tailed probabilities. And then, the main results are applied tothree important types of time series models:infinite order moving averages, the simple bilinear time series and the solutions of stochasticdifference equations. The explicit formulas are given to describe how the marginaltail probabilities come from the innovation's tail probabilities for these time series.Our results can be applied to the tail estimation of time series and are useful for risk analysis in finance. | YU Bosco W. T. PANG W. K. | 2004 | Science China Mathematics2004,47,3: | 7 |
| 15 | 基于18S rDNA的metabarcoading技术分析土壤小型动物多样性3种方法的比较显示文摘生态和环境管理方面的很多基本问题都需要涉及土壤及腐殖质小型动物多样性的特征描述.当前利用高通量测序技术获得条形码基因扩增子序列的方法('metabarcoding')在生物多样性调查方面提供了高效有力的方法.然而,这一技术的广泛应用面临很大阻碍,即需要从大量原始序列数据中通过生物信息学方法处理获得很多候选基因.于是,我们比较了3个针对从固体基质中获得的18S rDNA metabarcode数据的信息学处理方法:(ⅰ)USEARCH/CROP,(ⅱ)Denoiser/UCLUST以及(ⅲ)OCTUPUS.令人满意的是,这3个信息学处理方法得到了相似且与环境样本中已知特征分类单元高度相关的群落组成.然而,OCTUPUS由于过高的序列噪音出现了过度估计系统发育多样性的问题.因此,推荐USEARCH/CROP或Denoiser/UCLUST方法,二者均可在QIIME环境下运行. | 杨晨雪 季吟秋 王晓阳 杨春燕 Yu Douglas W. | 2012 | 中国科学:生命科学2012,42,12: | 7 |
| 16 | Incidence and Phenotype of Inflammatory Bowel Disease Based on Results From the Asia-Pacific Crohn’s and Colitis Epidemiology Study显示文摘 | Siew C. Ng Whitney Tang Jessica Y. Ching May Wong Chung Mo Chow A.J. Hui T.C. Wong Vincent K. Leung Steve W. Tsang Hon Ho Yu Mo Fong Li Ka Kei Ng Michael A. Kamm Corrie Studd Sally Bell Rupert Leong H. Janaka de Silva Anuradhani Kasturiratne M.N.F. Mufeen | 2013 | Gastroenterology2013,,1: | 6 |
| 17 | Genetic consequences of postglacial colonization by the endemic Yarkand hare (Lepus yarkandensis) of the arid Tarim Basin显示文摘Orogenesis of the Qinghai-Tibetan Plateau,which occurred in a stepwise manner,contributed to the extreme aridity of the Tarim Basin,resulting in vulnerable and unstable ecosystems.Quaternary climatic oscillations may have affected the ecosystems and,consequently,the distributions and genetic structuring of the Tarim Basin's biota.We used nucleotide sequence data from 2 mitochondrial (mt) DNA genes (Cyt b and the D-loop) to test hypotheses associated with the matrilineal and demographical histories of the Tarim Basin's endemic Yarkand hare (Lepus yarkandensis).Range-wide sampling involving 20 populations and 224 individuals detected 126 haplotypes that clustered into 5 major lineages in both the phylogenetic tree and median-joining network.Populations from the northern and eastern Tarim Basin shared a similar history,as did those from the western and southern regions.Demographical analysis and genetic diversity estimations suggested that the western and southern regions might have served as glacial refugia for the Yarkand hare during Quaternary climatic oscillations.The distribution of the Yarkand hare,especially in the northern and eastern parts,probably represented 3 postglacial colonization events,dated to 0.21,0.090 and 0.054 MYA,which corresponded to known interglacial periods.Given the relatively complete geographic isolation between the eastern and southern populations,the Yarkand hare likely dispersed during postglacial periods from the southwest to the north,and then onward to the east.The absence of water likely forced the species into refugia,and this differed from other Pleistocene biogeographical drivers.The demographical and historical patterns have important implications for conservation. | SHAN WenJuan LIU Jiang YU Li ROBERT W. Murphy MAHMUT Halik ZHANG YaPing | 2011 | Chinese Science Bulletin2011,56,13: | 5 |
| 18 | OPTION PRIORITIZATION FOR UNKNOWN PREFERENCE显示文摘一种选择 prioritization 技术被开发高效地得到偏爱,未知、松脆,在战略冲突的决定制造者(数据管理系统) 。在为冲突分辨率的图模型,每 DM 有至少一种选择,其各个可以被选择。一种州,或可能的情形,当时,被形成所有数据管理系统做一种选择选择。软件 GMCR II 包含使让 modeller 进入用描述数据管理系统的按优先级排列的陈述在州上订的数据管理系统松脆的偏爱容易的一个选择 prioritization 过程比较喜欢的选择联合。这个过程被增加二新逻辑 connectives 扩大描述偏爱的无常。为每 DM,为各可行的状态的可能的分数的一个范围当时能是计算的,便于订的偏爱的决心由比较并且评价分数包含无常。为了表明这新方法论怎么能习惯于,处于一个真实世界的决定问题代表未知偏爱,它在建议的水出口上被用于加拿大的争论。 | Jing Yu Keith W. Hipel D. Marc Kilgour Min Zhao | 2016 | Journal of Systems Science and Systems Engineering2016,25,1: | 5 |
| 19 | Significance of CD90 + Cancer Stem Cells in Human Liver Cancer显示文摘 | Zhen Fan Yang David W. Ho Michael N. Ng Chi Keung Lau Wan Ching Yu Patricia Ngai Patrick W.K. Chu Chi Tat Lam Ronnie T.P. Poon Sheung Tat Fan | 2008 | Cancer Cell2008,,2: | 5 |
| 20 | Comprehensive characterization of indoor airborne bacterial profile显示文摘This is the first detailed characterization of the airborne bacterial profiles in indoor environments. Two restaurants were selected for this study. Fifteen genera of bacteria were isolated from each restaurant and identified by three different bacterial identification systems including MIDI, Biolog and Riboprinter . The dominant bacteria of both restaurants were Gram-positive bacteria in which Micrococcus and Bacillus species were the most abundant. Most bacteria identified were representative species of skin and respiratory tract of human, and soil. Although the bacterial levels in these two restaurants were below the limit of the Hong Kong Indoor Air Quality Objective (HKIAQO) Level 1 standard (i.e., < 500 cfu/m3), the majority of these bacteria were opportunistic pathogens. These results suggested that the identity of airborne bacteria should also be included in the IAQ to ensure there is a safety guideline for the public. | P. L. Chan P. H. F. Yu Y. W. Cheng C. Y. Chan P. K. Wong | 2009 | Journal of Environmental Sciences2009,21,8: | 5 |