咨询与建议

限定检索结果

文献类型

  • 161,655 篇 期刊文献
  • 24,684 篇 会议
  • 73 册 图书

馆藏范围

  • 186,405 篇 电子文献
  • 9 种 纸本馆藏

日期分布

学科分类号

  • 97,801 篇 工学
    • 15,372 篇 材料科学与工程(可...
    • 13,130 篇 化学工程与技术
    • 10,512 篇 机械工程
    • 9,778 篇 计算机科学与技术...
    • 7,519 篇 软件工程
    • 7,005 篇 控制科学与工程
    • 6,699 篇 土木工程
    • 6,020 篇 电子科学与技术(可...
    • 5,592 篇 仪器科学与技术
    • 4,624 篇 生物医学工程(可授...
    • 4,549 篇 水利工程
    • 4,505 篇 动力工程及工程热...
    • 4,112 篇 信息与通信工程
    • 3,874 篇 力学(可授工学、理...
    • 3,836 篇 交通运输工程
    • 3,806 篇 建筑学
    • 3,556 篇 电气工程
  • 46,631 篇 医学
    • 33,340 篇 临床医学
    • 5,311 篇 中西医结合
    • 5,166 篇 基础医学(可授医学...
    • 4,756 篇 医学技术(可授医学...
    • 4,146 篇 药学(可授医学、理...
  • 40,264 篇 理学
    • 9,678 篇 数学
    • 9,650 篇 化学
    • 5,756 篇 生物学
    • 5,743 篇 物理学
    • 3,698 篇 系统科学
  • 12,485 篇 管理学
    • 8,197 篇 管理科学与工程(可...
  • 9,366 篇 农学
  • 7,304 篇 教育学
    • 3,834 篇 教育学
  • 5,372 篇 经济学
    • 4,999 篇 应用经济学
  • 2,661 篇 文学
  • 2,480 篇 法学
  • 1,304 篇 艺术学
  • 947 篇 哲学
  • 901 篇 历史学
  • 875 篇 军事学

主题

  • 1,337 篇 中国
  • 826 篇 治疗
  • 777 篇 设计
  • 610 篇 大鼠
  • 577 篇 of
  • 505 篇 应用
  • 487 篇 合成
  • 480 篇 ct
  • 461 篇 稀土
  • 446 篇 数学模型
  • 441 篇 诊断
  • 410 篇 and
  • 386 篇 仿真
  • 355 篇 磁共振成像
  • 350 篇 model
  • 346 篇 mri
  • 325 篇 数值模拟
  • 317 篇 apoptosis
  • 315 篇 遗传算法
  • 306 篇 计算机

机构

  • 2,284 篇 同济大学
  • 1,869 篇 清华大学
  • 1,812 篇 上海交通大学
  • 1,639 篇 天津大学
  • 1,588 篇 四川大学
  • 1,250 篇 山东大学
  • 1,133 篇 华东师范大学
  • 1,101 篇 西安交通大学
  • 1,101 篇 武汉大学
  • 1,073 篇 浙江大学
  • 1,062 篇 北京大学
  • 968 篇 武汉理工大学
  • 914 篇 华中科技大学
  • 866 篇 南京大学
  • 860 篇 中国科学技术大学
  • 844 篇 复旦大学
  • 790 篇 华南理工大学
  • 668 篇 中南大学
  • 652 篇 苏州大学
  • 621 篇 上海大学

作者

  • 3,745 篇 china
  • 385 篇 p.r.china
  • 355 篇 china)
  • 319 篇 beijing
  • 150 篇 shanghai
  • 106 篇 tsinghua univers...
  • 84 篇 h.murayama
  • 84 篇 j.d.jackson
  • 84 篇 g.d'ambrosio
  • 74 篇 m.white
  • 66 篇 changsha
  • 63 篇 p. r. china
  • 62 篇 王伟
  • 57 篇 哈木拉提·吾甫尔
  • 55 篇 wuhan
  • 52 篇 张磊
  • 51 篇 刘伟
  • 51 篇 chinese academy ...
  • 50 篇 张伟
  • 46 篇 刘杰

语言

  • 115,500 篇 中文
  • 70,910 篇 英文
  • 1 篇 法文
  • 1 篇 日文
检索条件"作者=P.R.China 3 Department of Engineering"
186412 条 记 录,以下是4931-4940 订阅
排序:
A COUpLED 1-D AND 2-D CHANNEL NETWOrK MATHEMATICAL MODEL USED FOr FLOW CALCULATIONS IN THE MIDDLE rEACHES OF THE YANGTZE rIVEr
收藏 引用
Journal of Hydrodynamics 2011年 第4期23卷 521-526页
作者: HAN Dong FANG Hong-wei BAIJing HE Guo-jian department of Hydraulic engineering and State Key Laboratory of Hydroscience and engineering Tsinghua University Beijing 100084 China
A coupled one-dimensional (1-D) and two-dimensional (2-D) channel network mathematical model is proposed for flow calculations at nodes in a channel network system in this article. For the 1-D model, the finite di... 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
Tissue p systems with parallel rules on channels
收藏 引用
progress in Natural Science:Materials International 2007年 第4期17卷 486-491页
作者: Xu Xian (department of Computer Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, china) department of Computer Science and Technology Shanghai Jiaotong University Shanghai 200240 China
A new variant of p systems as an improvement of the original design is introduced. The p systems here allow parallelism in rules application on synapses (or links, channels), rendering the systems more efficient. We d... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Effect of Altitude and Latitude on Surface Air Temperature across the Qinghai-Tibet plateau
收藏 引用
Journal of Mountain Science 2011年 第6期8卷 808-816页
作者: WANG Keli SUN Jia CHENG Guodong JIANG Hao Cold and Arid regions Environmental and engineering research Institute Chinese Academy of Sciences Lanzhou 73oooo China National Natural Science Foundation of china Beijing 100085 China Graduate University of Chinese Academy of Sciences Beijing ~ooo49 China
The correlation between mean surface air temperature and altitude is analyzed in this paper based on the annual and monthly mean surface air temperature data from 106 weather stations over the period 1961-2003 across ... 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
Overall planning of Development of Urban-rural Areas:A policy Mechanism for Urban-rural Coordinated Growth
收藏 引用
Chinese Journal of population,resources and Environment 2004年 第1期2卷 57-60页
作者: Sun JinSociology department, china Agricultural University, Beijing 100874, china Sociology department China Agricultural University Beijing 100874 China
While analyzing overall planning and coordinated development of urban-rural areas, this paper shows that overall planning for the development of urban-rural areas is a requirement for the best use of productive forces... 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
On Multi-Granulation rough Sets with Its Applications
收藏 引用
Computers, Materials & Continua 2024年 第4期79卷 1025-1038页
作者: radwan Abu-Gdairi r.Mareay M.Badr department of Mathematics Faculty of ScienceZarqa UniversityZarqa13132Jordan department of Mathematics Faculty of ScienceKafrelsheikh UniversityKafrelsheikh33516Egypt department of Mathematics Faculty of ScienceNew Valley UniversityEl Kharga72713Egypt
recently,much interest has been given tomulti-granulation rough sets (MGrS), and various types ofMGrSmodelshave been developed from different viewpoints. In this paper, we introduce two techniques for the classificati... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Image Splicing Forgery Detection Using Feature-Based of Sonine Functions and Deep Features
收藏 引用
Computers, Materials & Continua 2024年 第1期78卷 795-810页
作者: Ala’a r.Al-Shamasneh rabha W.Ibrahim department of Computer Science College of Computer&Information SciencesPrince Sultan UniversityRiyadh11586Saudi Arabia department of Computer Science and Mathematics Lebanese American UniversityBeirut11022801Lebanon department of Mathematics Mathematics Research CenterNear East UniversityNicosia99138Turkey Information and Communication Technology research Group Scientific Research CenterAlayen UniversityDhi Qar64001Iraq
The growing prevalence of fake images on the Internet and social media makes image integrity verification a crucial research *** of the most popular methods for manipulating digital images is image splicing,which invo... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
H∞ Controller of Nonlinear System Basing on the Lagrange Interpolation polynomial
H∞ Controller of Nonlinear System Basing on the Lagrange In...
收藏 引用
第二十七届中国控制会议
作者: Huang Hongyi 1,peng Xiafu 2 1.department of Computer Science,Xiamen Univ.,Xiamen 361005,p.r.china 2.department of Automation,Xiamen Univ.,Xiamen 361005,p.r.china
This paper uses interpolation polynomial method to approximate Nonlinear *** Interpolation polynomial adopted in this methodology is a combination of Lagrange’s interpolation polynomials,which are obtained by Aitken ... 详细信息
来源: cnki会议 评论
reliable H∞ Control for Uncertain Affine Nonlinear Systems
Reliable H∞ Control for Uncertain Affine Nonlinear Systems
收藏 引用
第二十九届中国控制会议
作者: CHEN Dongyan department of Application Mathematics,Harbin University Science and Technology,Harbin 150080,p.r.china
The reliable H∞control for uncertain affine nonlinear systems with actuator failures is discussed.A more practical model of actuator failures than outage is *** on the Hamilton-Jacobi inequality(HJI)approach from n... 详细信息
来源: cnki会议 评论
Gp-stability of θ-method for Generalized Delay Differential Systems
GP-stability of θ-method for Generalized Delay Differential...
收藏 引用
第九届全国微分方程数值方法暨第六届全国仿真算法学术会议
作者: Yuhao Cong Jiaxiang Xiang department of Mathematics,Shanghai Normal University Shanghai 200234,p.r.china
The Gp-stability of θ-methods for the numerical solution of systems of delay differential equations is considered,The stability behavior of θ-methods is analyzed for multiple delay *** prove that θ-methods with the...
来源: cnki会议 评论
Characterization of a novel developmentally retarded mutant (drm1) associated with the autonomous flowering pathway in Arabidopsis
收藏 引用
Cell research 2005年 第2期15卷 133-140页
作者: Yong ZHU1,2,*, Hui Fang ZHAO1,3,*, Guo Dong rEN1, Xiao Fei YU1, Shu Qing CAO1, Ben Ke KUAI1,4,**1department of Biochemistry, Ministry of Education Key laboratory for Biodiversity Science and Ecological engineering, School of Life Sciences, Fudan University, 220 Handan road, Shanghai 200433, china 2School of Horticulture and Gardening, Southwest Forestry College, Kun Ming 650224, china 3department of biology, School of Life and Environment Science, Shanghai Normal University, Shanghai 200234, china4Fudan Centre for Genetic Diversity and designed Agriculture, Fudan University, 220 Handan road, Shanghai 200433, china department of Biochemistry Ministry of Education Key laboratory for Biodiversity Science and Ecological Engineering School of Life Sciences Fudan University Shanghai China School of Horticulture and Gardening Southwest Forestry College Kun Ming China department of biology School of Life and Environment Science Shanghai Normal University Shanghai China Fudan Centre for Genetic Diversity and designed Agriculture Fudan University Shanghai China
A developmentally retarded mutant (drm1) was identified from ethyl methanesulfonate (EMS)-mutagenized M2 seedsin Columbia (Col-0) genetic background. The drm1 flowers 109 d after sowing, with a whole life cycle of abo... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论