咨询与建议

限定检索结果

文献类型

  • 10,115 篇 期刊文献
  • 5,444 篇 会议
  • 1 册 图书

馆藏范围

  • 15,560 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 10,225 篇 工学
    • 1,514 篇 材料科学与工程(可...
    • 1,361 篇 控制科学与工程
    • 1,305 篇 化学工程与技术
    • 1,276 篇 计算机科学与技术...
    • 1,179 篇 机械工程
    • 1,100 篇 电子科学与技术(可...
    • 1,033 篇 仪器科学与技术
    • 909 篇 软件工程
    • 860 篇 信息与通信工程
    • 439 篇 地质资源与地质工...
    • 397 篇 光学工程
    • 380 篇 水利工程
    • 351 篇 力学(可授工学、理...
    • 330 篇 动力工程及工程热...
    • 309 篇 电气工程
    • 299 篇 环境科学与工程(可...
    • 290 篇 网络空间安全
  • 5,997 篇 理学
    • 1,033 篇 化学
    • 950 篇 数学
    • 922 篇 生物学
    • 897 篇 物理学
    • 773 篇 系统科学
    • 488 篇 地质学
    • 393 篇 大气科学
    • 259 篇 生态学
  • 1,526 篇 农学
    • 606 篇 作物学
    • 416 篇 农业资源与环境
  • 1,171 篇 管理学
    • 928 篇 管理科学与工程(可...
  • 1,073 篇 医学
    • 485 篇 临床医学
  • 317 篇 经济学
    • 302 篇 应用经济学
  • 142 篇 军事学
  • 114 篇 教育学
  • 94 篇 艺术学
  • 47 篇 文学
  • 41 篇 法学
  • 27 篇 历史学
  • 10 篇 哲学

主题

  • 99 篇 model
  • 91 篇 simulation
  • 56 篇 analysis
  • 56 篇 numerical simula...
  • 45 篇 surface
  • 43 篇 high
  • 42 篇 optimization
  • 42 篇 of
  • 37 篇 distribution
  • 36 篇 mechanism
  • 36 篇 magnetic
  • 34 篇 control
  • 34 篇 effect
  • 33 篇 中国
  • 32 篇 apoptosis
  • 32 篇 rice
  • 31 篇 dna
  • 29 篇 support vector m...
  • 28 篇 wavelet transfor...
  • 28 篇 network

机构

  • 75 篇 国防科技大学
  • 67 篇 中国科学院大学
  • 63 篇 武汉大学
  • 62 篇 南京信息工程大学
  • 61 篇 华中科技大学
  • 58 篇 南京大学
  • 57 篇 北京大学
  • 50 篇 china
  • 42 篇 中国科学技术大学
  • 39 篇 东南大学
  • 39 篇 同济大学
  • 32 篇 天津大学
  • 32 篇 清华大学
  • 32 篇 西安电子科技大学
  • 27 篇 哈尔滨工业大学
  • 26 篇 吉林大学
  • 25 篇 北京航空航天大学
  • 25 篇 graduate univers...
  • 22 篇 华中理工大学
  • 22 篇 浙江大学

作者

  • 726 篇 china
  • 118 篇 p.r.china
  • 44 篇 2 graduate unive...
  • 40 篇 china)
  • 35 篇 p. r. china
  • 33 篇 tsinghua univers...
  • 28 篇 chinese academy ...
  • 26 篇 zhejiang univers...
  • 23 篇 nanjing
  • 20 篇 shanghai
  • 20 篇 dalian universit...
  • 19 篇 beijing 100084
  • 18 篇 huazhong univers...
  • 17 篇 hubei
  • 17 篇 tianjin
  • 17 篇 ministry of educ...
  • 16 篇 nanjing 210093
  • 16 篇 hangzhou
  • 16 篇 hefei
  • 16 篇 3 graduate unive...

语言

  • 12,827 篇 英文
  • 2,733 篇 中文
检索条件"作者=2 tsinghua national laboratory for information science and technology, Beijing 100084, China"
15560 条 记 录,以下是4951-4960 订阅
排序:
AGING PROPERTIES OF THE LIFETIME IN SIMPLE ADDITIVE DEGRADATION MODELS
收藏 引用
Journal of Systems science & Complexity 2011年 第4期24卷 753-760页
作者: Xiaohu LI Rongfang YAN Yiqiang ZHAO School of Mathematical science Xiamen University Xiamen 361005 China. College of Mathematics and information Beienee Northwest Normal University Lanzhou 730050 China. Schoolof Mathematics and Statistics Carleton University Ottawa Ontario KIS 5B6 Canada.
This paper deals with the simple additive degradation models with single random effect. The authors further study the link between the aging property of the implied lifetime and that of the random variation. It is fou... 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
Human Facial Expression Recognition Based on Local MR8 Filter bank
Human Facial Expression Recognition Based on Local MR8 Filte...
收藏 引用
2010 International Conference on Optics, Photonics and Energy Engineering (OPEE 2010)
作者: Shipeng Xie School of Computer science & Engineering Southeast University,NanJing,china Limin Luo laboratory of Image science and technology Southeast University,NanJing,china
Facial expression represents intelligence,and facial expression recognition is always an important research field in computer vision and artificial intelligence for a long *** this paper,we present a method of facial ... 详细信息
来源: cnki会议 评论
Feasibility of columnar jointed basalt used for high-arch dam foundation
收藏 引用
Journal of Rock Mechanics and Geotechnical Engineering 2011年 第S1期3卷 461-468页
作者: Yunjie Wei1, Mo Xu2, Wenpei Wang1, Anchi Shi3, Mingfa Tang3, Zhiping Ye3 1 Key laboratory of Urban Security and Disaster Engineering of Ministry of Education, beijing University of technology, beijing, 100124, china 2 State Key laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of technology, Chengdu, 610059, china 3 East china Investigation and Design Institute, china Hydropower Engineering Consulting Group Corporation, Hangzhou, 310014, china Key laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of Technology Beijing 100124 China State Key laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China East china Investigation and Design Institute China Hydropower Engineering Consulting Group Corporation Hangzhou 310014 China
Columnar jointed basalt, with a lot of small-spacing structural planes and poor integrity, is a kind of fractured rock mass. Through comprehensive study of columnar joints shape, roughness of fracture surface and chem... 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
Robust Kalman Filtering for Wireless Sensor Networks Systems With Measurement Delay
Robust Kalman Filtering for Wireless Sensor Networks Systems...
收藏 引用
第三十届中国控制会议
作者: LU Xiao~(1,2),ZHANG Juanjuan~2 1.School of Control science and Engineering,Shandong University,Jinan 250061,P.R.china. 2.Key laboratory for Robot & Intelligent technology of Shandong Province,Shandong University of science and technology,Qingdao 266510,P.R.china.
<正>This brief is concerned with robust Kalman filtering for wireless sensor networks with delayed measurements,where packet-drop also *** norm-bounded parameter uncertainties enter into both the system matrix and t... 详细信息
来源: cnki会议 评论
Threshold Property of Photoresist Film for Two-photon Optical Memory
收藏 引用
Chinese Journal of Lasers 2001年 第5期 46-49页
作者: ZHANG Jiangying MING Hai LIANG Zhongcheng WANG Pei XIE Jianping (laboratory of Quantum information and Quantum Computation, Department of Physics, University of science and technology of china, Hefei 230026, china) XIE Aifang ZHANG Zebo (Laborato
Two photon threshold property of photoresist films have been studied by changing exposure energy. When photoresist film is irradiated by Ti∶Sapphire laser with wavelength 770 nm, pulse width 130 fs, repetition rate 8... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Grade and Tonnage Model of Contact Metasomatic Copper Deposit in china
收藏 引用
Journal of Earth science 2000年 第1期19卷 76-80页
作者: Wang Xueping Wei Min Faculty of Earth Resources, china University of Geosciences, Wuhan 430074 Yang Lipei Zhao Jingman china Mineral information Research Institute, beijing 100037
Grade-tonnage model is one of the research frontiers of systematical exploration theory. Based on the “Reserve Database of Mineral Resources in china (1997)”, this paper establishes the geological model, grade model... 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
PARTICLE SIZE DISTRIBUTION IN A PLANAR JET FLOW UNDER-GOING SHEAR-INDUCED COAGULATION AND BREAKAGE
收藏 引用
Journal of Hydrodynamics 2010年 第4期22卷 445-455页
作者: GAN Fu-jun LIN Jian-zhong YU Ming-zhou State Key laboratory of Fluid Power Transmission and Control Zhejiang University Hangzhou 310027 China china Jiliang University Hangzhou 310018 China State Key Laboratory of Fluid Power Transmission and Control Zhejiang University Hangzhou 310027 China china Jiliang University Hangzhou 310018 China
A CFD simulation is performed for a particle-laden planar jet *** Reynolds number is 8300,and the initial particle diameter is 1 μ*** Eddy Simulation(LES) is employed to calculate the flow field,and the Taylor-seri... 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
The Role of Software Architecture and Trusted Computing in Software Design Guiding Principles and Quality Assessment Standard
The Role of Software Architecture and Trusted Computing in S...
收藏 引用
2012 national Conference on information technology and Computer science
作者: DIAO Mingguang School of information Engineering,china University of Geosciences,beijing,china XUE Tao School of information Engineering,china University of Geosciences,beijing,china ZOU SenZhong School of information Engineering,china University of Geosciences,beijing,china
In software engineering,software design guiding principles and quality evaluation standard is not only an important theoretical problem but also a very practical *** to some inappropriate dissertation in the popular t... 详细信息
来源: cnki会议 评论
The Behavior and Characteristics of the InterfacialWaves in Gas-Liquid Two-Phase Separated FlowThrough Downward Inclined Rectangular Channel
收藏 引用
Journal of Thermal science 1998年 第1期7卷 29-36页
作者: Guangjun Li Lienjin Guo Xuejun Chen(national laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an,710049,china) national laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University Xi’an China
An experimental investigation on the behavior and characteristics of interfacial waves in downward inclined rectangular channel was conducted. The interfacial waves were traced and measured by us-ing conductance techn... 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
Topology Based Reliable Virtual Network Embedding from a QoE Perspective
收藏 引用
china Communications 2018年 第10期15卷 38-50页
作者: Peiying Zhang Sheng Wu Miao Wang Haipeng Yao Yunjie Liu College of Computer & Communication Engineering China University of Petroleum (East China) State Key laboratory of Networking and Switching technology Beijing University of Posts and Telecommunications DFH Satellite Co. Ltd.
In the network virtualization environments, one of the most challenges is how to map the virtual networks(VNs) onto a shared substrate network managed by an infrastructure provider(In P), which is termed as virtual ne... 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