咨询与建议

限定检索结果

文献类型

  • 76,548 篇 期刊文献
  • 4,673 册 图书
  • 3,496 篇 会议
  • 56 篇 学位论文
  • 17 篇 报纸

馆藏范围

  • 82,663 篇 电子文献
  • 2,220 种 纸本馆藏

日期分布

学科分类号

  • 29,256 篇 工学
    • 5,553 篇 材料科学与工程(可...
    • 3,291 篇 化学工程与技术
    • 3,133 篇 生物医学工程(可授...
    • 2,096 篇 机械工程
    • 1,863 篇 电子科学与技术(可...
    • 1,773 篇 计算机科学与技术...
    • 1,640 篇 动力工程及工程热...
    • 1,412 篇 地质资源与地质工...
    • 1,216 篇 仪器科学与技术
    • 1,153 篇 水利工程
    • 999 篇 电气工程
    • 985 篇 环境科学与工程(可...
  • 26,327 篇 医学
    • 21,476 篇 临床医学
    • 3,385 篇 医学技术(可授医学...
    • 2,362 篇 基础医学(可授医学...
    • 1,978 篇 中西医结合
    • 1,687 篇 公共卫生与预防医...
    • 1,088 篇 药学(可授医学、理...
  • 13,508 篇 理学
    • 2,311 篇 物理学
    • 2,262 篇 化学
    • 2,171 篇 生物学
    • 1,762 篇 数学
    • 1,555 篇 地质学
  • 6,678 篇 农学
    • 1,541 篇 作物学
    • 1,475 篇 畜牧学
    • 1,081 篇 农业资源与环境
  • 3,790 篇 管理学
    • 1,591 篇 管理科学与工程(可...
    • 1,206 篇 公共管理
  • 2,450 篇 经济学
    • 2,160 篇 应用经济学
  • 2,004 篇 教育学
    • 1,485 篇 教育学
  • 1,454 篇 文学
  • 1,403 篇 法学
  • 757 篇 艺术学
  • 593 篇 历史学
  • 540 篇 哲学
  • 177 篇 军事学

主题

  • 744 篇 ct
  • 725 篇 mri
  • 657 篇 美国
  • 403 篇 病人
  • 367 篇 患者
  • 360 篇 mr
  • 276 篇 北美洲
  • 247 篇 中国
  • 205 篇 美利坚合众国
  • 195 篇 of
  • 177 篇 and
  • 174 篇 治疗
  • 168 篇 cancer
  • 151 篇 covid-19
  • 151 篇 analysis
  • 143 篇 应用
  • 140 篇 方程
  • 128 篇 设计
  • 125 篇 儿童
  • 118 篇 诊断

机构

  • 197 篇 香港理工大学
  • 179 篇 中国科学院大学
  • 150 篇 北京大学
  • 140 篇 清华大学
  • 125 篇 西南民族大学
  • 91 篇 同济医科大学附属...
  • 85 篇 香港大学
  • 81 篇 大连理工大学
  • 72 篇 南京大学
  • 71 篇 四川大学
  • 70 篇 华中科技大学
  • 70 篇 浙江大学
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 albert einstein ...
  • 67 篇 dipartimento di ...
  • 67 篇 nikhef p.o.box 4...
  • 66 篇 fysikum stockhol...
  • 66 篇 michigan state u...
  • 65 篇 东南大学

作者

  • 187 篇 叶鹏
  • 106 篇 郭战宏
  • 95 篇 george f.gao
  • 91 篇 刘莉
  • 85 篇 f.krauss
  • 85 篇 g.weiglein
  • 85 篇 h.murayama
  • 84 篇 j.parsons
  • 84 篇 j.d.jackson
  • 84 篇 g.d'ambrosio
  • 84 篇 r.s.chivukula
  • 81 篇 y.kwon
  • 76 篇 郭俊
  • 65 篇 m.white
  • 62 篇 s.blusk
  • 60 篇 m.drees
  • 58 篇 李开
  • 54 篇 joanna c.lee
  • 42 篇 朱国栋
  • 41 篇 j.zhang

语言

  • 58,011 篇 中文
  • 26,742 篇 英文
  • 1 篇 法文
  • 1 篇 其他
检索条件"作者=F.c.ndamine"
84790 条 记 录,以下是51-60 订阅
排序:
Stream-dwelling fungal decomposer communities along a gradient of eutrophication unraveled by 454 pyrosequencing
收藏 引用
fungal Diversity 2015年 第1期70卷 127-148页
作者: S.Duarte f.Bärlocher J.Trabulo f.cássio c.Pascoal centre of Molecular and Environmental Biology(cBMA) Department of BiologyUniversity of MinhoCampus de Gualtar4710-057 BragaPortugal Department of Biology Mount Allison UniversitySackvilleNB E4L 1G7Canada
Microbial decomposers,especially a fungal group called aquatic hyphomycetes,play a critical role in processing plant litter in freshwaters by increasing its palatability to invertebrate ***,communities of aquatic hyph... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Microstructure, Mechanical and corrosion Properties of AlcocrfeNi High-Entropy Alloy Prepared by Spark Plasma Sintering
收藏 引用
Acta Metallurgica Sinica(English Letters) 2020年 第7期33卷 937-946页
作者: P.f.Zhou D.H.Xiao T.c.Yuan National Key Laboratory of Science and Technology for National Defence on High-strength Structural Materials Central South UniversityChangsha 410083China
AlcocrfeNi is one of the most widely studied alloy systems in the high-entropy alloy(HEA) area due to the interesting microstructure and mechanical *** this study,the AlcocrfeNi alloy was prepared using spark plasma s... 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
PREcIPITATION BEHAVIOR Of M_(2)N IN A HIGH-NITROGEN AUSTENITIc STAINLESS STEEL DURING ISOTHERMAL AGING
收藏 引用
Acta Metallurgica Sinica(English Letters) 2007年 第2期20卷 95-101页
作者: f. Shi L.J. Wang W.f. cui c.M. Liu School of Materials & Metallurgy Northeastern UniversityShenyang 110004 China
The precipitation behavior of M2N and the microstructural evolution in a cr-Mn austenitic stainless steel with a high nitrogen content of 0.43mass% during isothermal aging has been investigated using optical microsco... 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
convolutional neural network to learn building-shape representations for early-stage energy design
收藏 引用
Energy and AI 2023年 第4期14卷 463-478页
作者: Manav Mahan Singh Ian f.c.Smith Georg Nemetschek Institute Artificial Intelligence for the Built World Technical University of MunichWalther-von-Dyck-Straße 10Garching bei München 85748Federal Republic of Germany
Machine learning(ML)supports energy-efficient design by quickly predicting the building performance at early ***,existing ML approaches cannot easily learn geometrical representations and their interactions with techn... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effect of high anodic polarization on the passive layer properties of superduplex stainless steel friction stir welds at different chloride electrolyte pH values and temperatures
收藏 引用
International Journal of Minerals,Metallurgy and Materials 2019年 第6期26卷 710-721页
作者: L.A.Santa-cruz G.Machado A.A.Vicente T.f.c.Hermenegildo T.f.A.Santos Department of Mechanical Engineering Universidade Federal de PernambucoAv.da Arquiteturas/n50740-550RecifePEBrazil center of Nanotechnology Centro de Tecnologias Estratégicas do NordesteCETENERecifePEBrazil Department of chemical Engineering Universidade de Sao PauloSao PauloSPBrazil
The conditions used for friction stir welding of duplex stainless steels determine the resulting mechanical and corrosion performance of the *** study investigates the corrosion resistance of UNS S32750 and S32760 sup... 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
colon cancer and the immune system:The role of tumor invading T cells
收藏 引用
World Journal of Gastroenterology 2006年 第45期12卷 7233-7238页
作者: Maximilian Waldner carl c Schimanski Markus f Neurath I. Department of Medicine University of Mainz Mainz Germany
colon cancer is still one of the leading causes of cancer death worldwide. Although the host immune system has been shown to react against tumor cells, mainly through tumor infi ltrating lymphocytes and NK cells, tumo... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Hack's law of debris-flow basins
收藏 引用
International Journal of Sediment Research 2009年 第1期24卷 74-87页
作者: LEE c. f BEIGHLEY R. E Department of civil Engineering The University of Hong Kong Pokfulam Road  2. Director Soil Erosion Research Laboratory Department of civil Construction and Environmental Engineering San Diego State University
Hack’s law was originally derived from basin statistics for varied spatial scales and regions. The exponent value of the law has been shown to vary between 0.47 and 0.70,causing uncertainty in its application. This p... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Nanocrystalline Ti49.2Ni50.8 shape memory alloy as orthopaedic implant material with better performance
收藏 引用
Journal of Materials Science & Technology 2019年 第10期35卷 2156-2162页
作者: H.f.Li f.L.Nie Y.f.Zheng Y.cheng S.c.Wei R.Z.Valiev Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing 700877China center for Biomedical Materials and Tissue Engineering Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China Department of Oral and Maxillofacial Surgery School of StomatologyPeking UniversityBeijing 100081China Institute of Physics of Advanced Materials Ufa State Aviation Technical UniversityUfaRussia Saint Petersburg State University Universitetskiy prospekt 28PeterhofSt.Petersburg198504Russia
Ti Ni alloys, with their unique shape memory effects and super elastic properties, occupy an indispensable place in the family of metallic biomaterials. In the past years, surface treatment is the main technique to im... 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
Subaqueous early eruptive phase of the late Aptian Rajmahal volcanism,India:Evidence from volcaniclastic rocks,bentonite,black shales,and oolite
收藏 引用
Geoscience frontiers 2017年 第4期8卷 809-822页
作者: Naresh c.Ghose Nilanjan chatterjee Brian f.Windley G/608 Raheja ResidencyKoramangala Department of Earth Atmospheric and Planetary SciencesMassachusetts Institute of Technology Department of Geology The University of Leicester
The late Aptian(118-115 Ma) continental flood basalts of the Rajmahal Volcanic Province(RVP) are part of the Kerguelen Large Igneous Province,and constitute the uppermost part of the Gondwana Supergroup on the eas... 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
VARIATION Of PHYSIcO-cHEMIcAL PROPERTIES Of RADIATION cROSSLINKED RUBBER WITH STORAGE TIME
收藏 引用
chinese Journal of Polymer Science 2005年 第5期23卷 497-501页
作者: N.c.Dafader M.E.Haque f.Akhtar Nuclear and Radiation chemistry Division
The effect of storage on physico-chemical properties of non-irradiated natural rubber and radiation vulcanized natural rubber (RVNR) were evaluated. The rubber films were stored under two different conditions, namel... 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