咨询与建议

限定检索结果

文献类型

  • 23,795 篇 期刊文献
  • 6,758 篇 会议

馆藏范围

  • 30,553 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 12,204 篇 工学
    • 2,238 篇 化学工程与技术
    • 1,551 篇 材料科学与工程(可...
    • 1,118 篇 电子科学与技术(可...
    • 906 篇 仪器科学与技术
    • 896 篇 控制科学与工程
    • 876 篇 计算机科学与技术...
    • 857 篇 地质资源与地质工...
    • 695 篇 机械工程
    • 667 篇 软件工程
    • 635 篇 光学工程
    • 591 篇 生物工程
    • 551 篇 水利工程
  • 11,092 篇 理学
    • 2,432 篇 化学
    • 1,895 篇 生物学
    • 1,364 篇 地质学
    • 1,240 篇 数学
    • 1,171 篇 物理学
    • 645 篇 天文学
    • 633 篇 大气科学
    • 583 篇 生态学
  • 6,940 篇 医学
    • 3,724 篇 临床医学
    • 1,083 篇 中西医结合
    • 804 篇 药学(可授医学、理...
    • 641 篇 基础医学(可授医学...
    • 620 篇 公共卫生与预防医...
    • 615 篇 中药学(可授医学、...
  • 3,253 篇 农学
    • 1,270 篇 作物学
    • 860 篇 农业资源与环境
  • 1,690 篇 管理学
    • 736 篇 管理科学与工程(可...
  • 893 篇 教育学
  • 800 篇 经济学
    • 693 篇 应用经济学
  • 530 篇 法学
  • 433 篇 文学
  • 195 篇 历史学
  • 155 篇 哲学
  • 137 篇 艺术学
  • 79 篇 军事学

主题

  • 226 篇 中国
  • 182 篇 稀土
  • 176 篇 专家共识
  • 156 篇 治疗
  • 151 篇 诊断
  • 125 篇 of
  • 99 篇 china
  • 82 篇 and
  • 82 篇 指南
  • 67 篇 high
  • 61 篇 共识
  • 52 篇 simulation
  • 51 篇 acid
  • 41 篇 mechanism
  • 40 篇 analysis
  • 39 篇 rock
  • 39 篇 肝硬化
  • 39 篇 老年人
  • 38 篇 its
  • 36 篇 并发症

机构

  • 655 篇 北京大学
  • 587 篇 中国科学院大学
  • 412 篇 清华大学
  • 378 篇 北京师范大学
  • 317 篇 解放军总医院
  • 232 篇 北京中医药大学
  • 223 篇 中国科学院研究生...
  • 214 篇 中国科学院微生物...
  • 169 篇 中国科学院心理研...
  • 156 篇 中国人民大学
  • 152 篇 北京大学人民医院
  • 151 篇 首都师范大学
  • 125 篇 北京医院
  • 112 篇 北京医科大学
  • 111 篇 首都医科大学宣武...
  • 108 篇 中国医学科学院北...
  • 107 篇 首都医科大学附属...
  • 101 篇 首都医科大学
  • 101 篇 北京大学第一医院
  • 100 篇 首都医科大学附属...

作者

  • 995 篇 china
  • 271 篇 beijing
  • 186 篇 chinese academy ...
  • 128 篇 tsinghua univers...
  • 89 篇 2 graduate unive...
  • 45 篇 p.r.china
  • 44 篇 china.
  • 36 篇 p. r. china
  • 34 篇 张杰
  • 30 篇 beijing 100039
  • 29 篇 beijing 100094
  • 28 篇 beijing 100190
  • 26 篇 shanghai
  • 26 篇 zhejiang univers...
  • 26 篇 彭聃龄
  • 23 篇 beijing 100083
  • 23 篇 beijing 100080
  • 21 篇 the chinese acad...
  • 20 篇 文榕生
  • 20 篇 朱丽霞

语言

  • 16,091 篇 英文
  • 14,462 篇 中文
检索条件"作者=2.{2. university of the chinese Academy of Sciences, Beijing 100049, {3."
30553 条 记 录,以下是1-10 订阅
排序:
Interannual variability of Antarctic Oscillation and its influence on East Asian climate during boreal winter and spring
收藏 引用
Science China Earth sciences 2006年 第5期49卷 554-560页
作者: FAN Ke1,2.3.& WANG Huijun2.1. Nansen-Zhu International Research Center, Institute of Atmospheric Physics, chinese {3. of {2., {3. 10002., China 2. Department of Atmospheric Science, Yunnan university, Kunming 650091, China 3. Graduate university of the chinese {3. of {2.,{13., China 1. Nansen-Zhu International Research Center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China 2. Department of Atmospheric Science Yunnan University Kunming 650091 China 3. Graduate university of the chinese {2. of{3. Beijing 100049 China
The interannual variability of Antarctic Oscillation (AAO) and its influence on East Asian climate during both boreal winter and spring are addressed. The results show that the positive AAO anomaly decreases the cold ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Debris Flow Hazard Assessment Based on Support Vector Machine
收藏 引用
Wuhan university Journal of Natural sciences 2006年 第4期11卷 897-900页
作者: YUAN Lifeng 1, 2., ZHANG Youshui 3. 1. Institute of Mountain Hazards and Environment, chinese academy of {2., Chengdu 610041, Sichuan, China 2. Graduate {3. of chinese academy of {2., beijing 100049, China 3. Institute of Geographical {2. and Natural Resources Research, chinese academy of {2., {12. 100101, China Institute of Mountain Hazards Environment Chinese Academy of Sciences 610041 Chengdu Sichuan China Graduate university of chinese {2. of{3. 100049 Beijing China Institute of Geographical sciences Natural Resources Research Chinese Academy of Sciences 100101 Beijing China
Seven factors, including the maximum volume of once flow , occurrence frequency of debris flow , watershed area , main channel length , watershed relative height difference , valley incision density and the length rat... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Strong decays of N~*(153.) in an extended chiral quark model
收藏 引用
Science China(Physics,Mechanics & Astronomy) 2009年 第10期52卷 1452-1457页
作者: AN ChunSheng1,2.3.& ZOU BingSong1,2.3.1 Institute of High Energy Physics,chinese {3. of {2.,beijing 100049,China 2.Theoretical Physics Center for Science Facilities,chinese {3. of {2.,beijing 100049,China 3.Graduate {13. of chinese {3. of {2.,beijing 100049,China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Theoretical Physics Center for Science Facilities Chinese Academy of Sciences Beijing 100049 China Graduate university of chinese {2. of{3. Beijing 100049 China
The strong decays of the N*(153.) resonance are investigated in an extended chiral quark model by including the low-lying $ qqqq\bar q $ components in addition to the qqq component. The results show that these five-qu... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Evaluation of Sustainable Land Management and Diagnosis of Obstacle at County Scale in Sichuan Basin:Taking Lezhi County as Example
收藏 引用
Wuhan university Journal of Natural sciences 2006年 第4期11卷 1046-1051页
作者: CHEN Guangjian 1, 2. 3., LIU Qing 1 1. Chengdu Institute of Biology, chinese academy of {2., Chengdu 610041, Sichuan,China 2. Graduate {3. of chinese academy of {2., beijing 100049, China 3. academy of Land Reconnaissance and Layout of Sichuan Province , Chengdu 61003., Sichuan, China Chengdu Institute of Biology Chinese Academy of Sciences Chengdu Sichuan China Graduate university of chinese {2. of{3. Beijing China academy of Land Reconnaissance and Layout of Sichuan Province Chengdu Sichuan China
This paper established sustainable land resources evaluating indicators fit for hilly area in Sichuan Basin, Southwest of China, and evaluated the case of sustainable land management of Lezhi County from 1990 to 2.01.... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
A mixed method for measuring low-frequency acoustic properties of macromolecular materials
收藏 引用
Science China(Physics,Mechanics & Astronomy) 2006年 第6期49卷 729-739页
作者: LIU Hongwei1,YAO Lei1,3.ZHAO Hong1,3.ZHANG Jichuan2.3.& XUE Zhaohong2.1. National Key Laboratory of Acoustics,Institute of Acoustics,chinese {3. of {2.,beijing 100080,China 2. Institute of Chemistry,chinese {3. of {2.,beijing 100080,China 3. Graduate university of chinese {3. of {2.,beijing 100049,China National Key Laboratory of Acoustics Institute of Acoustics Chinese Academy of Sciences Beijing 100080 China Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Graduate university of chinese {2. of{3. Beijing 100049 China
A mixed method for measuring low-frequency acoustic properties of macro-molecular materials is presented. The dynamic mechanical parameters of materials are first measured by using Dynamic Mechanical Thermal Apparatus... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Discovery of immune related factors in Fenneropenaeus chinensis by annotation of ESTs
收藏 引用
Progress in Natural Science:Materials International 2004年 第1期14卷 48-55页
作者: SHEN Yaoqing 1,2. , XIANG Jianhai 1*, WANG Bing 1,2. , LI Fuhua 1 and TONG Wei 3.1. Experimental Marine Biology Laboratory, Institute of Oceanology, chinese {3. of {2., Qingdao 2.6071,China 2. Graduate School of the chinese {3. of {2., beijing 10003., China 3. Genomics & Bioinformatics Institute, chinese {3. of {2., beijing 1013.0, China) chinese Acad Sci Inst Oceanol Expt Marine Biol Lab Qingdao 266071 Peoples R China chinese Acad Sci Grad Sch Beijing 100039 Peoples R China chinese Acad Sci Geonom & Bioinformat Inst Beijing 101300 Peoples R China
A total of 10446 expressed sequence tags (ESTs) are obtained by a large scale sequencing of a cDNA library from cephalothorax of adult Fenneropenaeus chinensis . An EST analysis platform was built up based on loca... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Teleconnection between the Indian summer monsoon onset and the Meiyu over the Yangtze River Valley
收藏 引用
Science China Earth sciences 2008年 第7期51卷 1021-1035页
作者: LIU YunYun1,2.3.& DING YiHui2.1 chinese {3. of Meteorological {2., {3. 100081, China 2.National Climate Center, {3. 100081, China 3.Graduate university of chinese {3. of {2., beijing 100049, China 1. chinese academy of Meteorological {2. Beijing 100081 China 2. National Climate Center Beijing 100081 China 3. Graduate university of chinese {2. of{3. Beijing 100049 China
Based on the Indian and chinese precipitation data and the NCEP-NCAR reanalysis circulation data, the relationship between the Indian summer monsoon (ISM) onset and the Meiyu over the Yangtze River Valley has been dis... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
^(40)Ar/^(3.)Ar dating of shear deformation of the Xianshuihe fault zone in west Sichuan and its tectonic significance
收藏 引用
Science China Earth sciences 2004年 第9期47卷 794-803页
作者: ZHANG Yueqiao1, CHEN Wen2. 3.& YANG Nong1 1. Institute of Geomechanics, chinese academy of Geological {2., {3. 100081, China 2. Institute of Geology, chinese academy of Geological {2., {3. 10003., China 3. Institute of Geology and Geophysics, chinese academy of {2., {3. 10002., China Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
Based on field geological survey, structural measurements and classical Ar/Ar dating of mica, biotite and K-feldspar, we obtain cooling ages for Miocene left-lateral shear along the Xianshuihe fault zone. The results ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Modeling and verifying Web services driven by requirements:An ontology-based approach
收藏 引用
Science in China(Series F) 2006年 第6期49卷 792-820页
作者: HOU Lishan1,3.JIN ZHi1,2.& WU Budan1,4 1. academy of Mathematics and Systems Science, chinese academy of {3., beijing 100080, China 2. Institute of Computing Technology, chinese academy of {3., beijing 100080, China 3. Institute of Software, chinese academy of {3., beijing 100080, China 4. Graduate university of chinese academy of {3., beijing 100049, China 1. academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China 3. Institute of Software Chinese Academy of Sciences Beijing 100080 China 2. Institute of Computing Technology Chinese Academy of Sciences Bejing 100080 China 4. Graduate university of chinese {2. of{3. Beijing 100049 China
Automatic discovery and composition of Web services is an important research area in Web service technology, in which the specification of Web services is a key issue. This paper presents a Web service capability desc... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Analysis and application of automatic deformation monitoring data for buildings and structures of mining area
收藏 引用
中国有色金属学会会刊:英文版 2011年 第S3期21卷 516-522页
作者: XIAO Jie1, 2. 3. ZHANG Jin4 1. Institute of Geodesy and Geophysics, chinese academy of {2., Wuhan 43.077, China 2. Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, chinese academy of {2., Wuhan 43.077, China 3. Graduate School of chinese academy of {2., beijing 100049, China 4. Department of Surveying and Mapping, Taiyuan university of Technology, Taiyuan 03.02., China Taiyuan Univ Technol Dept Surveying & Mapping Taiyuan 030024 Peoples R China chinese Acad Sci Inst Geodesy & Geophys Key Lab Dynam Geodesy Wuhan 430077 Peoples R China chinese Acad Sci Grad Sch Beijing 100049 Peoples R China
The buildings and structures of mines were monitored automatically using modern surveying technology. Through the analysis of the monitoring data, the deformation characteristics were found out from three aspects cont... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论