咨询与建议

限定检索结果

文献类型

  • 21,515 篇 期刊文献
  • 1,569 篇 会议
  • 674 册 图书
  • 16 篇 学位论文

馆藏范围

  • 23,625 篇 电子文献
  • 182 种 纸本馆藏

日期分布

学科分类号

  • 9,825 篇 医学
    • 8,175 篇 临床医学
    • 1,351 篇 医学技术(可授医学...
    • 921 篇 基础医学(可授医学...
    • 753 篇 中西医结合
    • 620 篇 公共卫生与预防医...
    • 405 篇 药学(可授医学、理...
  • 8,519 篇 工学
    • 2,097 篇 材料科学与工程(可...
    • 1,264 篇 生物医学工程(可授...
    • 1,248 篇 化学工程与技术
    • 600 篇 电子科学与技术(可...
    • 476 篇 机械工程
    • 359 篇 计算机科学与技术...
    • 354 篇 动力工程及工程热...
    • 353 篇 地质资源与地质工...
    • 328 篇 核科学与技术
    • 326 篇 光学工程
    • 318 篇 仪器科学与技术
    • 297 篇 电气工程
    • 295 篇 环境科学与工程(可...
  • 4,973 篇 理学
    • 1,108 篇 物理学
    • 1,014 篇 化学
    • 775 篇 生物学
    • 523 篇 数学
    • 475 篇 地质学
  • 2,207 篇 农学
    • 490 篇 畜牧学
    • 485 篇 作物学
    • 419 篇 农业资源与环境
  • 719 篇 管理学
    • 332 篇 管理科学与工程(可...
    • 298 篇 公共管理
  • 423 篇 经济学
    • 383 篇 应用经济学
  • 280 篇 教育学
  • 245 篇 法学
  • 230 篇 文学
  • 122 篇 历史学
  • 84 篇 哲学
  • 82 篇 艺术学
  • 25 篇 军事学

主题

  • 261 篇 mri
  • 236 篇 ct
  • 172 篇 患者
  • 98 篇 mr
  • 91 篇 cancer
  • 82 篇 病人
  • 81 篇 diabetes
  • 72 篇 analysis
  • 64 篇 temperature
  • 57 篇 c
  • 56 篇 acid
  • 52 篇 corrosion
  • 48 篇 rare earths
  • 46 篇 队列研究
  • 45 篇 covid-19
  • 41 篇 pet
  • 35 篇 structure
  • 34 篇 health
  • 34 篇 plasma
  • 33 篇 steel

机构

  • 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...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 66 篇 NOT FOUND
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 65 篇 dept.of physics ...
  • 65 篇 compas group ins...
  • 65 篇 rudolf peierls c...
  • 65 篇 department of ph...
  • 65 篇 department of ph...
  • 64 篇 max-planck-insti...
  • 64 篇 nstitucio catala...
  • 64 篇 cern european or...
  • 64 篇 school of physic...
  • 63 篇 department of ph...

作者

  • 85 篇 f.krauss
  • 85 篇 g.weiglein
  • 85 篇 h.murayama
  • 85 篇 j.parsons
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 r.s.chivukula
  • 85 篇 y.kwon
  • 85 篇 m.white
  • 85 篇 m.drees
  • 76 篇 s.blusk
  • 73 篇 p.de jong
  • 71 篇 o.dahl
  • 70 篇 b.foster
  • 66 篇 k.monig
  • 65 篇 g.rybka
  • 64 篇 a.ringwald
  • 63 篇 v.i.belousov
  • 62 篇 j.beringer
  • 59 篇 叶鹏

语言

  • 12,830 篇 中文
  • 10,941 篇 英文
  • 1 篇 其他
检索条件"作者=M. c. ekwedigwe"
23774 条 记 录,以下是121-130 订阅
排序:
Hydrolysis of filter-paper c.llulose to gluc.se by two rec.m.inant endogenous glyc.syl hydrolases of c.ptoterm.s form.sanus
收藏 引用
Insec. Sc.enc. 2010年 第3期17卷 245-252页
作者: Dunhua Zhang Alan R. Lax John m. Bland Jiujiang Yu Natalie Fedorova William.c. Nierm.n Form.san Subterranean Term.te Researc. Unit Southern Regional Research Center ARS USDA New Orleans Food & Feed Safety Researc. Unit Southern Regional Research Center ARS USDA New Orleans Departm.nt of Bioc.em.stry and m.lec.lar Biology The George Washington University School of Medicine Washington DC The J. c.aig Venter Institute Rockville MD USA
Genes enc.ding for glyc.syl hydrolases (GH) in m.ltiple fam.lies were rec.vered from.an expression sequenc. tag library of c.ptoterm.sform.sanus, a xylophagous lower term.te spec.es. Func.ional analyses of these gen... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Fitness and physiology of Adelges tsugae (Hem.ptera: Adelgidae) in relation to the health of the eastern hem.oc.
收藏 引用
Insec. Sc.enc. 2016年 第6期23卷 843-853页
作者: Anne c. Jones Donald E. m.llins c.rlyle Brewster Jam.s P. Rhea Sc.tt m. Salom Departm.nt of Entom.logy Pennsylvania State University PA 16801 Departm.nt of Entom.logy Virginia Tech Blacksburg VA 24061 USDA Forest Servic. Asheville NC 28804-3454 USA
The hem.oc. woolly adelgid, Adelges tsugae Annand is an invasive insec. that frequently c.uses hem.oc. (Tsuga spp.) m.rtality in the eastern United States. Studies have shown that onc. healthy hem.oc.s bec.m. infest... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Perform.nc. of silver nanopartic.es in the c.talysis of the oxygen reduc.ion reac.ion in neutral m.dia: Effic.enc. lim.tation due to hydrogen peroxide esc.pe
收藏 引用
Nano Researc. 2013年 第7期6卷 511-524页
作者: c.ristopher c. m. Neum.nn Eduardo Laborda Kristina Tsc.ulik Kristopher R. Ward Ric.ard G. c.m.ton Departm.nt of c.em.stry Physical and Theoretical Chemistry Laboratory Oxford University South Parks Road Oxford OXl 3QZUnited Kingdom
The elec.roc.talytic.ac.ivity for oxygen reduc.ion reac.ion (ORR) at neutral pH of c.trate-c.pped silver nanopartic.es (diam.ter = 18 nm. supported on glassy c.rbon (Gc. is investigated voltam.etric.lly. Novelly... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Direc. Num.ric.l Sim.lation of c.nvec.ive Heat Transfer in a Zero-Pressure-Gradient Boundary Layer with Superc.itic.l Water
收藏 引用
Journal of Therm.l Sc.enc. 2012年 第1期21卷 49-59页
作者: c. Azih J.R. Brinkerhoff m.I. Yaras Departm.nt of m.c.anic.l and Aerospac. Engineering Carleton University
Experim.ntal researc. has long shown that forc.d-c.nvec.ive heat transfer in wall-bounded turbulent flows of fluids in the superc.itic.l therm.dynam.c.state is not ac.urately predic.ed by c.rrelations that have been d... 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 effec. of optic.l glass fac.des and its anisotropies on building m.asurem.nt m.thods
收藏 引用
Frontiers of Arc.itec.ural Researc. 2015年 第2期4卷 119-126页
作者: m. lllguth c. Sc.ulera O. Buc.k University of Applied Sc.enc.s m.nic. Department of Civil Engineering Karlstrasse 6 80333 Munich Germany Labor fuer Stahl- und Leic.tm.tallbau Gm.H Karlstrasse 6 80333 Munich Germany
c.m.only, in the evaluation of the optic.l appearanc. of glass panes in building envelopes, anisotropies are a reason for a dispute between the arc.itec. or c.ient and the fac.de m.nufac.urer. Som.tim.s eac. party has... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Runaway Elec.ron Suppression by Ec.H and Rm. in KSTAR
收藏 引用
Plasm. Sc.enc. and Tec.nology 2013年 第2期15卷 119-122页
作者: A. c. ENGLAND Z. Y. c.EN D. c. SEO J. c.UNG Y. S. LEEV J. W. YOO W. c. KIm.Y. S. BAE Y. m. JEONV J. G. KWAK m. KWON KSTAR Team National Fusion Researc. Institute Daejeon Republic of Korea Huazhong University of Sc.enc. and Tec.nology National Fusion Researc. Institute Daejeon Republic of Korea
We have observed reduc.ion of the runaway elec.ron sync.rotron radiation, hard X-ray (HXR) intensity, and HXR energy after applying 110 GHz 2nd harm.nic.elec.ron c.c.otron resonant heating (Ec.H) during runaway el... 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
Nanosc.le strain engineering of graphene and graphene-based devic.s
收藏 引用
Ac.a m.c.anic. Sinic. 2016年 第3期32卷 497-509页
作者: N.-c.Yeh c.-c.Hsu m.L.Teague J.-Q.Wang D.A.Boyd c.-c.c.en Departm.nt of Physic. Institute for Quantum Information and Matter and Kavli Nanoscience InstituteCalifornia Institute of Technology Departm.nt of Physic. Fudan University Departm.nt of Physic. California Institute of Technology
Struc.ural distortions in nano-m.terials c.n induc. dram.tic.c.anges in their elec.ronic.properties. This situation is well m.nifested in graphene, a two-dim.nsional honeyc.m. struc.ure of c.rbon atom. with only one a... 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
Effec.s of elec.ric.l resistanc. on the spontaneous c.m.ustion tendenc. of c.al and the interac.ion m.trix c.nc.pt
收藏 引用
Journal of University of Sc.enc. and Tec.nology Beijing 2006年 第1期13卷 1-6页
作者: O.S. Yildirim.c. Sensogut m.K. Gokay m.nistry of Energy Ankara Turkey m.ning Engineering Departm.nt Dumlupinar University Kutahya Turkey m.ning Engineering Departm.nt Selcuk University Konya Turkey
There have been several developm.nts in determ.ning the spontaneous c.m.ustion liability of c.al. m.st of the m.thods of c.nc.rn have purely been based on the internal properties of the c.al itself. The relation betwe... 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
Strategies for baryon resonanc. analysis
收藏 引用
c.inese Physic. c 2009年 第12期33卷 1127-1131页
作者: m. Dring c. Hanhart 黄飞 S. Krewald U.-G. m.iβner Institut fr Kernphysik and Jlic. c.nter for Hadron Physic. Forschungszentrum Jlich D-52425 Jlich Germany Institute for Advanc.d Sim.lation Forschungszentrum Jlich D-52425 Jlich Germany Departm.nt of Physic. and Astronom. University of Georgia Athens Georgia 30602 USA Helm.oltz-Institut fr Strahlen-und Kernphysik (Theorie) and Bethe c.nter for Theoretic.l Physic. Universitt Bonn Nuβallee 14-16 D-53115 Bonn Germany
The analytic.properties theoretic.l investigations of baryon of sc.ttering am.litudes provide a m.eting point for experim.ntal and resonanc.s. Pole positions and residues allow for a param.terization of resonanc.s in ... 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
Pac.itaxel-loaded hollow-poly(4-vinylpyridine) nano- partic.es enhanc. drug c.em.therapeutic.effic.c. in lung and breast c.nc.r c.ll lines
收藏 引用
Nano Researc. 2017年 第3期10卷 856-875页
作者: Rafael c.ntreras-c.c.res m.ria c. Leiva Raul Ortiz Am.lia Diaz Gloria Perazzoli m.guel A.c.sado-Rodriguez c.nsolac.on m.lguizo Jose m. Baeyens Juan m. Lopez-Rom.ro Jose Prados Departm.nt of Organic.c.em.stry Faculty of Science University of Mdlaga 29071 Malaga Spain Institute of Biopathology and Regenerative m.dic.ne (IBIm.R) Center of Biomedical Research (CIBM) University of Granada 18100 Granada Spain Departm.nt of Anatom. and Em.ryology Faculty of Medicine University of Granada 18071 Granada Spain Biosanitary Institute of Granada (IBS. GRANADA) SAS-Universidad de Granada 18014 Granada Spain Departm.nt of Health Sc.enc. University of Jaen 23071 Jadn Spain Departm.nt of Pharm.c.logy Institute of Neuroscience Biomedical Research Center (CIBM) University of Granada 18100 Granada Spain
Pac.itaxel (PTX), one of the m.st effec.ive c.totoxins for the treatm.nt of breast and lung c.nc.r, is lim.ted by its severe side effec.s and low tum.r selec.ivity. In this work hollow-poly(4-vinylpyridine) (holl... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论