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| 1 | Reconstruction of precipitation variation from tree rings in recent 1000 years in Delingha, Qinghai显示文摘Using seven well-replicated Qilian juniper (Sabina przewalskii Kom.) ring-width chronologies developed at Zongwulong and Shalike Mts. in the northeastern part of the Qaidam Basin annual precipitation from previous July to current June in the recent 1000 years was re- constructed for Delingha. The reconstruction can capture 63.1% of precipitation variance and the equation was stable over time. For the reconstructed precipitation, wet periods occurred in AD1520—1633 and 1933—2001, whereas dry intervals in 1429—1519 and 1634—1741. In ad- dition, the magnitude in precipitation variation was lower before 1430 with about 15 mm, but it increased to 30 mm during the period of 1430 to 1850. After 1850, the precipitation variance de- creased again. In contrast to the increase in temperature, a decrease in annual precipitation was evident since the 1990s. The agreement in low-frequency variation between the reconstruction and the glacier accumulation and particulate content in Dunde ice cores during the recent several hundred years suggested that the precipitation reconstructed in this study was rather reliable, and represented a regional signal. This 1000-year reconstruction could benefit our understanding of climatic variation in decadal to century-scale in this region, and provide basic data to climate models and to prediction of future climate in the 21st century. | SHAO Xuemei1, HUANG Lei1, LIU Hongbin2, LIANG Eryuan1, FANG Xiuqi3 & WANG Lili1 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 2. National Climate Center, Beijing 100081, China 3. Beijing Normal University, Beijing 100875, China | 2005 | Science China Earth Sciences2005，48，7： | 113 |
| 2 | Active tectonic blocks and strong earthquakes in the continent of China显示文摘The primary pattern of the late Cenozoic to the present tectonic deformation of China is characterized by relative movements and interactions of tectonic blocks. Active tectonic blocks are geological units that have been separated from each other by active tectonic zones. Boundaries between blocks are the highest gradient of differential movement. Most of tectonic activity occurs on boundaries of the blocks. Earthquakes are results of abrupt releases of accumulated strain energy that reaches the threshold of strength of the earth's crust. Boundaries of tectonic blocks are the locations of most discontinuous deformation and highest gradient of stress accumulation, thus are the most likely places for strain energy accumulation and releases, and in turn, devastating earthquakes. Almost all earthquakes of magnitude greater than 8 and 80%-90% of earthquakes of magnitude over 7 occur along boundaries of active tectonic blocks. This fact indicates that differential movements and interactions of active tectonic blocks are the primary mechanism for the occurrences of devastating earthquakes. | ZHANG Peizhen (张培震) DENG Qidong (邓起东) ZHANG Guomin (张国民) MA Jin (马 瑾) GAN Weijun (甘卫军) MIN Wei (闵 伟) MAO Fengying (毛凤英) WANG Qi (王 琪) | 2003 | Science China Earth Sciences2003，46，z2： | 239 |
| 3 | Jef Verschueren: Understanding Pragmatics──A Review Article显示文摘ThisisareviewarticleofJefVerschueren'sUnderstandingPragmatics,hislatestcontribution,andtheworkhasbeenpreparedtopresentacoherenttheoreticalframeworkforlinguisticpragmaticsandtoofferamorecomprehensiveandscientifictextbookforthosewhoareengagedinthestudy... | He Ziran Yu Guodongp | 1999 | 现代外语1999，22，4： | 561 |
| 4 | 一种服务聚合中QoS全局最优服务动态选择算法显示文摘Web服务作为一种新型的Web应用模式,近年来得到了迅速的发展.如何动态地把现存的各种Web服务整合起来以形成新的、满足不同用户需求的、增值的复杂服务已成为新的应用需求和研究热点.针对现有服务聚合中服务选择技术的不足,提出了一种解决服务聚合中服务动态选择QoS全局最优化问题的实现算法GODSS(global optimal of dynamic Web services selection).算法的主要思想是把服务动态选择全局最优化问题转化为一个带QoS约束的多目标服务组合优化问题,利用多目标遗传算法的智能优化原理,通过同时优化多个目标函数,最终产生一组满足约束条件的Pareto优化服务聚合流程集.理论分析和实验结果说明了算法的可行性和有效性. | 刘书雷 刘云翔 张帆 唐桂芬 景宁 | 2007 | 软件学报2007，18，3： | 146 |
| 5 | 基于Webof Science和ESI数据库高被引论文的界定方法显示文摘随着Science Citation Index(科学引文索引,SCI)和Essential Science Indicators(基本科学指标,ESI)数据库在全球科学评价中的普遍应用,越来越多的学者利用引文分析工具对高被引论文进行统计分析。系统介绍了应用Web of Science和ESI数据库确定高被引论文的标准和方法,如限定被引频次法、百分比法、普赖斯定律法、共时法和历时法等。对各种确定高被引论文的标准和方法进行了评价。 | 刘雪立 | 2012 | 中国科技期刊研究2012，23，6： | 151 |
| 6 | 基于文献计量的大数据研究综述显示文摘本文通过检索Web of Science中有关大数据的论文,采用文献计量分析法、可视化分析法和内容分析法等对文献进行梳理,分析了该领域的研究现状和发展趋势,并从大数据基本理论、大数据存储与分析处理技术和大数据应用研究三个角度说明当前研究热点,对未来研究进行展望。 | 李贺 袁翠敏 李亚峰 | 2014 | 情报科学2014，32，6： | 129 |
| 7 | 生态语言学的兴起与发展显示文摘尽管"生态语言学"(ecolinguistics,ecological linguistics)和"语言生态学"(linguistic ecology,ecology of language)之间存在一些差异,但国内很多人(如范俊军,2005;韩军,2013)都把它们等同起来,认为它们同指一个学科。说得简单些,生态语言学是一个由生态学与语言学结合而形成的交叉学科, | 黄国文 | 2016 | 中国外语2016，13，1： | 268 |
| 8 | 基于PERT/CPM的关键链管理显示文摘网络规划技术是现代项目管理技术的重要组成部分。本文在对传统PERT/CPM网络规划方法分析的基础上,针对PERT三点估计在应用上的缺陷,引入TheoryofConstraint(TOC),并对PERT三点估计给出一种全新的解释。在新的解释下,TOC思想在项目规划中的运用被称为关键链管理(CCPM),强调在项目实施过程中加强对关键链的管理。为此,本文提出了一个基于三点估计的关键链管理的新方法,并通过实例论证关键链管理作为一种新的项目管理方法可以接近或者超过PERT/CPM的平均效果。 | 蔡晨 万伟 | 2003 | 中国管理科学2003，11，6： | 104 |
| 9 | Strongly peraluminous granites of Mesozoic in Eastern Nanling Range, southern China: Petrogenesis and implications for tectonics显示文摘The strongly peraluminous granites (SPGs) of Eastern Nanling Range (ENR) are a characteristic of all bearing highly aluminous minerals, such as muscovite±Al-rich biotite±tourmaline±garnet, and lack of cordierite. In respect of petrography, geochemistry, Nd isotope, and single grain zircon U-Pb dating, the representative granite bodies of them are studied. The research shows that these granites were emplaced in two stages, namely 228-225 Ma BP and J2-3 159-156 Ma BP, belonging to Indosinian and early Yanshanian periods, respectively, and they have low εNd(t) values (-10.6--11.1), high A/CNK, Rb/Sr ratios and tDM values (1887-1817 Ma), and REE's tetrad effect (TE1, 3=1.13-1.34). In comparison with related geology, petrology and chronology of granites in adjacent regions, it is suggested that Indosinian SPGs of ENR formed in the circumstance of post-collisional extension 20 Ma after the major collision of Indosinian Movement (258-243 Ma BP) in Indo-China Peninsula, and early Yanshanian SPGs formed in the background of back-arc extension setting controlled by paleo-Pacific tectonic domain, and J1, the interval of two stages, is the interim from Tethyan to Pacific tectonic domains in South China. These SPGs have similar geological and geochemical characteristics, because they all crystallized from the magma of partial melting of early Proterozoic metasedimentary rocks when the thickened crust (≤50 km) became thinning, decompression, and transmitting of water. | SUN Tao, ZHOU Xinmin, CHEN Peirong, LI Huimin, ZHOU Hongying, WANG Zhicheng & SHEN Weizhou Department of Earth Sciences, Nanjing University, Nanjing 210093, China Tianjin Institute of Geology and Mineral Resources, China Geological Survey, Tianjin 300170, China | 2005 | Science China Earth Sciences2005，48，2： | 78 |
| 10 | 土壤重金属污染研究回顾与展望--基于web of science数据库的文献计量分析显示文摘土壤是人类赖以生存的主要资源之一。土壤污染特别是重金属污染已经成为全球面临的一个亟待解决的问题。为了深入了解土壤重金属污染研究的全球状况和前沿动态,比较客观地反映相关国家在该领域的科学能力和科学影响,采用ISIWebofKnowledge的WebofScience引文数据库,选用普通检索方式,以土壤重金属污染作为主题检索词,对1990~2008年之间该库收录的相关文献进行了计量分析。结果表明,美国土壤重金属污染发文量领先于其他国家,占全部发文量的15%;国际上发文量居前10位的期刊平均影响因子为2.608,最主要的期刊有Environmental Pollution、Science of the Total Environmental和Water Air and Soil Pollution;中国科学院、浙江大学和香港浸会大学的土壤重金属污染发文量在中国位居前3位。 | 赵庆龄 路文如 | 2010 | 环境科学与技术2010，33，6： | 69 |
| 11 | 从语境分析看动态对等论的局限性显示文摘Dynamic Equivalence is a concept introduced by Nida(1964) in the context of Bible translation. It has been widely accepted in the field of translation throughout the world but also been questioned by some scholars. Can the theory of dynamic equivalence be applied to all kinds of translation? The present paper tries to find an answer to the question through an analysis of a C/E translation on the basis of Halliday’s theory. [ | 张美芳 | 1999 | 上海翻译1999，，4： | 72 |
| 12 | Prevalence of minimal hepatic encephalopathy and quality of life evaluations in hospitalized cirrhotic patients in China显示文摘AIM:To investigate the prevalence of minimal hepatic encephalopathy(MHE)and to assess corresponding health-related quality of life(HRQoL)in hospitalized cirrhotic patients in China.METHODS:This multi-center cross-sectional study included 16 teaching hospitals,which were members of 'Hepatobiliary Cooperation Group,Society of Gastroenterology,Chinese Medical Association',from different areas of China carried out between June and October in 2011.All the eligible hospitalized cirrhotic patients(n = 538)were required to complete triplicate number connection tests combined with one digit symbol test for diagnosing MHE.Patients' clinical examination data were complemented by a modified questionnaire assessing HRQoL.Written informed consent was obtained from each patient.RESULTS:Male was predominant(68.6%)in 519 patients who met the criteria of the study,with a mean age of 49.17 ± 11.02 years.The most common cause of liver cirrhosis was chronic hepatitis B(55.9%).The prevalence of MHE was 39.9% and varied by ChildPugh-Classification score(CPC-A:24.8%,CPC-B:39.4% and CPC-C:56.1%,P < 0.01).MHE(P < 0.01)and higher CPC scores(P < 0.01)were associated with a high HRQoL scores(reflecting poorer quality of life).The prevalence of MHE was proportionate to CPC(P = 0.01)and high quality of life scores(P = 0.01).CONCLUSION:Hospitalized cirrhotic patients have a high prevalence of MHE that is proportionate to the degree of liver function and HRQoL impairment. | Ji-Yao Wang Ning-Ping Zhang Bao-Rong Chi Yu-Qing Mi Li-Na Meng Ying-Di Liu Jiang-Bin Wang Hai-Xing Jiang Jin-Hui Yang Yun Xu Xiao Li Jian-Ming Xu Guo Zhang Xin-Min Zhou Yu-Zheng Zhuge De-An Tian Jin Ye Yu-Lan Liu | 2013 | World Journal of Gastroenterology2013，19，30： | 64 |
| 13 | 基于Web of Science的数字图书馆研究论文定量分析显示文摘以美国科学情报研究所(ISI)开发的基于Web的Web of Science网络数据库为数据源基础,对1993-2004年间SCI和SSCI收录的数字图书馆研究论文的情况,从论文的发表时间分布、期刊分布、被引频次分布、作者分布四个方面进行了统计与分析,初步确定了数字图书馆领域的核心期刊、经典文献和核心作者。 | 周静怡 孙坦 | 2005 | 情报科学2005，23，10： | 65 |
| 14 | A new class of scrambling transformation and its application in the image information covering显示文摘This paper studies two kinds of nonlinear transformations, namely the higher-dimensional Arnold transformation and the higher-dimensional Fibonacci Q-transformation and discusses the scrambling action of the two transformations focusing on the phase space of the digital images. A sufficient and necessary condition that a matrix transformation of digital image has periodicity is given. The results show that the two transformations have potential application in the storage and transportation of image information for the purpose of information security. | 齐东旭 邹建成 韩效宥 | 2000 | Science China(Technological Sciences)2000，43，3： | 77 |
| 15 | 我国智慧农业研究的现状·问题与发展趋势显示文摘在总结我国农业发展现状并借鉴发达国家农业发展经验的基础上,提出了智慧农业的概念、意义、原理与框架体系等,指出了智慧农业发展存在的问题,给出了相应的解决方案,进而论述了我国未来实现农业现代化和发展智慧农业的潜力和发展趋势等,为我国今后发展智慧农业和实施可持续发展战略提供了科学依据、构想和导论。 | 王海宏 周卫红 李建龙 孙政国 郑亚君 | 2016 | 安徽农业科学2016，44，17： | 73 |
| 16 | 土壤环境中多环芳烃研究的回顾与展望——基于Web of Science大数据的文献计量分析显示文摘为深入了解土壤环境中多环芳烃研究的全球状况和前沿动态,客观反映相关国家、机构和个人在该领域的科学能力和影响,采用ISI Web of Knowledge的Web of Science引文数据库,对1900—2014年间该库收录的土壤环境中多环芳烃研究领域的相关文献进行了计量分析。结果表明,该领域全球发文量总体呈持续快速上升趋势,美国的发文量、总被引频次和H指数均居榜首,中国的发文量和总被引频次居次席,但篇均被引频次明显偏低;中国科学院和英国兰卡斯特大学的发文量和H指数居研究机构的前两位,篇均被引频次排名最高的研究机构是美国马萨诸塞大学;英国兰卡斯特大学的Jones K C等两位学者发文量和H指数最高,北达克科特大学Hawthorne S B的篇均被引频次最高,国内学者中北京大学的陶澍和浙江大学的朱利中最有影响力;该领域的主要期刊有Environmental Science&Technology、Chemosphere和Environmental Pollution等;该领域的研究热点多集中于土壤环境中多环芳烃的降解及生物修复、多环芳烃在各介质中的溶解与吸附、以及多环芳烃的源解析等方向,'中国'相关研究在近5年中占重要地位。 | 吴健 王敏 靳志辉 吴建强 沙晨燕 齐晓宝 唐浩 黄沈发 | 2016 | 土壤学报2016，53，5： | 65 |
| 17 | Expression of nuclear factor-KB in hepatocellular carcinoma and its relation with the X protein of hepatitis B virus显示文摘AIM In this study we investigated therelationship of the X protein of HBV and nuclearfactor-KB (NF-κB) and the expression of NF-KB inhuman hepatocellular carcinoma tissues.METHODS Immunohistochemistry SP methodwas used to detect the expression of NF-κB and the X protein of HBV in human hepatocellularcarcinoma tissues of 52 cases. Gene transfectionmediated by lipofectamine was used to transfectthe eukaryotic expression vector pCDNA3. 1-HBXof HBV x gene into human hepatocellularcarcinoma cell line HCC-9204 and NF-κB wasdetected.RESULTS NF-κB was widely expressed inhuman hepatocellular carcinoma tissues in atotal of 52 cases and its expression was relatedto the X protein of HBV. NF-KB was localizedboth in the cytoplasm and . The nuclei ofhepatocellular carcinoma cells in 11 cases whichwere positive for the X protein of HBV while in 41cases negative for the X protein of HBV, NF-Kbwas only localized in the cytoplasm ofhepatocellular carcinoma cells but translocatedto the nuclei of hepatocellular carcinoma cellsafter the eukaryotic expression vectorpCDNA3.1-HBX was transfected into HCC-9204cells.CONCLUSION This study strongly suggeststhat the nuclear factor NF-KB is widely expressedin hepatocellular carcinoma tissues in differentstyles according to the expression of the Xprotein of HBV. NF-κB is abnormally activated inhepatocellular carcinoma, which is probablyrelated to the X protein of HBV. The X protein ofHBV can activate NF-κB to translocate into nucleiof hepatocellular carcinoma cells. | Shuang Ping Guo~1 Wen Liang Wang~1 Yu Qiang Zhai~2 Yi Ling Zhao~1 ~1Department of Pathology,Xijing Hospital of the Fourth Military Medical University,Xi’an,China ~2Department of Urology,the Central Hospital of Xi’an,China | 2001 | World Journal of Gastroenterology2001，7，3： | 55 |
| 18 | Specific molecular markers in hepatocellular carcinoma显示文摘BACKGROUND: The carcinogenesis of hepatocellular carcinoma (HCC) is a multi-factorial, multistep and complex process. Its prognosis is poor, and early diagnosis and monitoring metastasis of HCC is of the utmost importance. Circulating diagnostic and prognostic biomarkers could be used in proper postoperative treatment of patients at an early stage of HCC development. This review summarizes recent studies of the specific biomarkers in diagnosis and monitoring metastasis or postoperative recurrence of HCC. DATA SOURCES: An English-language literature search was conducted using MEDLINE (June 1998 to September 2006) on researches of some valuable specific biomarkers in diagnosis and monitoring metastasis or postoperative recurrence of HCC. RESULTS: Hepatoma tissues can synthesize various tumor-related proteins, polypeptides, and isoenzymes, such as alpha-fetoprotein (AFP), hepatoma-specific gamma-glutamyl transpeptidase (HS-GGT), etc, and then secrete into blood. The valuable early diagnostic and prognostic biomarkers could predict the development and metastases of HCC. Recent researches have confirmed that circulating hepatoma-specific AFP subfraction, transforming growth factor (TGF)-β1, HS-GGT, and free insulin-like growth factor (IGF)-Ⅱ may be more specific markers than total AFP level for early diagnosis for HCC. The circulating genetic markers such as AFP-mRNA, TGF-β1-mRNA, IGF-Ⅱ-mRNA, etc from peripheral blood mononuclear cells of HCC patients have been most extensively used in monitoring distal metastasis or postoperative recurrence of HCC. CONCLUSIONS: Hepatoma tissues synthesize and secrete valuable molecular markers into blood. The analyses of circulating hepatoma-specific biomarkers are usefulto early diagnosis of HCC or monitoring metastasis or postoperative recurrence of HCC. | Yao, Deng-Fu Dong, Zhi-Zhen Yao, Min | 2007 | Hepatobiliary & Pancreatic Diseases International2007，6，3： | 55 |
| 19 | Application of entransy dissipation extremum principle in radiative heat transfer optimization显示文摘The concepts of entransy flux and entransy dissipation in radiative heat transfer were introduced based on the analogy with heat conduction and heat convection processes. Entransy will be partially dissipated during the radiative heat transfer processes due to the irreversibility. The extremum principle of entransy dissipation was developed for optimizing radiative heat transfer processes. This principle states that for a fixed boundary temperature the radiative heat transfer is optimized when the entransy dissipation is maximized, while for a fixed boundary heat flux the radiative heat transfer process is optimized when the entransy dissipation is minimized. Finally, examples for the application of the entransy dissipation extre- mum principle are presented. | Jing Wu XinGang Liang | 2008 | Science China(Technological Sciences)2008，51，8： | 56 |
| 20 | Geomorphological and environmental evolution in the upper reaches of the Yellow River during the late Cenozoic显示文摘Studies of the geomorphology and stratigraphy in the upper reaches of the Yellow River during the late Cenozoic demonstrate that the period of 30 - 3.4 Ma is characterized by a relatively stable tectonic setting, a persistently hot climate and a wide distribution of inland basins. This long-term stable environment resulted in a planation surface, the main surface on the Qinghai-Xizang (Qingzang) Plateau, on which red earth crust and karst arc formed. Since 3.4 Ma, the Qingzang Plateau was 'uplifted as a whole massif, accompanied by the dissection and disintegration of the main surface, termination of deposition and deformation of stratigraphy in red basins, increasing relief and commencing accumulation of inland molasse formation mainly of conglomerate. Subsequent strong uplift of the Qingzang Plateau at 2.5 Ma and 1.7-1.66 Ma led to cormation of the basic geomorphological configuration of the Qingzang Plateau and occurrence of the Yellow River. These three strong uplifts of the Qingzang Plateau | 李吉均 方小敏 马海州 朱俊杰 潘保田 陈怀录 | 1996 | Science China Earth Sciences1996，39，4： | 53 |
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