咨询与建议

限定检索结果

文献类型

  • 22,568 篇 期刊文献
  • 1,582 篇 会议
  • 837 册 图书
  • 1 篇 学位论文

馆藏范围

  • 24,711 篇 电子文献
  • 300 种 纸本馆藏

日期分布

学科分类号

  • 10,776 篇 医学
    • 9,344 篇 临床医学
    • 2,054 篇 医学技术(可授医学...
    • 1,608 篇 基础医学(可授医学...
    • 986 篇 中西医结合
    • 804 篇 公共卫生与预防医...
    • 526 篇 药学(可授医学、理...
  • 10,605 篇 工学
    • 2,951 篇 材料科学与工程(可...
    • 2,173 篇 生物医学工程(可授...
    • 1,676 篇 化学工程与技术
    • 1,144 篇 机械工程
    • 1,011 篇 电子科学与技术(可...
    • 892 篇 动力工程及工程热...
    • 842 篇 力学(可授工学、理...
    • 810 篇 电气工程
    • 784 篇 冶金工程
    • 737 篇 环境科学与工程(可...
    • 723 篇 地质资源与地质工...
    • 655 篇 计算机科学与技术...
    • 586 篇 水利工程
    • 524 篇 控制科学与工程
    • 521 篇 核科学与技术
  • 7,294 篇 理学
    • 2,249 篇 物理学
    • 2,186 篇 化学
    • 1,621 篇 生物学
    • 883 篇 地球物理学
    • 827 篇 地质学
    • 742 篇 数学
    • 721 篇 天文学
  • 2,478 篇 农学
    • 828 篇 作物学
    • 685 篇 畜牧学
  • 625 篇 管理学
  • 457 篇 教育学
  • 372 篇 经济学
  • 213 篇 法学
  • 204 篇 文学
  • 130 篇 艺术学
  • 103 篇 历史学
  • 70 篇 哲学
  • 18 篇 军事学

主题

  • 417 篇 ct
  • 335 篇 mri
  • 190 篇 患者
  • 181 篇 mr
  • 122 篇 病人
  • 58 篇 analysis
  • 57 篇 危险因素
  • 51 篇 药物治疗
  • 48 篇 前列腺癌
  • 46 篇 美国
  • 44 篇 发生率
  • 44 篇 安慰剂对照
  • 41 篇 死亡率
  • 40 篇 diabetes
  • 37 篇 mechanical prope...
  • 36 篇 plasma
  • 34 篇 acid
  • 33 篇 pet
  • 33 篇 magnetic
  • 32 篇 气候变化

机构

  • 68 篇 university of mi...
  • 68 篇 department of ph...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 67 篇 nstitucio catala...
  • 67 篇 school of physic...
  • 66 篇 national researc...
  • 66 篇 ludwig-maximilia...
  • 66 篇 cea/saclay dsm/i...
  • 65 篇 department of ph...
  • 65 篇 department of ph...
  • 65 篇 kobayashi-maskaw...
  • 65 篇 high energy phys...
  • 65 篇 department of ph...

作者

  • 124 篇 叶鹏
  • 87 篇 v.i.belousov
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 80 篇 v.burkert
  • 77 篇 y.hayato
  • 75 篇 a.v.gritsan
  • 69 篇 a.gurtu
  • 68 篇 m.carena
  • 64 篇 a.masoni
  • 62 篇 kavli ipmu
  • 62 篇 l.pape
  • 55 篇 s.rolli
  • 45 篇 a.d.martin
  • 44 篇 b.heltsley
  • 42 篇 s.r.klein
  • 41 篇 王铮

语言

  • 14,462 篇 中文
  • 10,514 篇 英文
  • 7 篇 其他
  • 1 篇 法文
检索条件"作者=M. Sh.j."
24988 条 记 录,以下是21-30 订阅
排序:
Supposition of graphene stacks to estim.te the contact resistance and conductivity of nanocom.osites
收藏 引用
Applied m.them.tics and m.chanics(English Edition) 2024年 第4期45卷 663-676页
作者: Y.ZARE m.T.m.NIR G.j.WENG K.Y.RHEE Biom.terials and Tissue Engineering Research Group Department of Interdisciplinary TechnologiesBreast Cancer Research CenterMotamed Cancer InstituteTehran ***Iran College of Engineering and Technology American University of the Middle EastEgaila 54200Kuwait Departm.nt of m.chanical and Aerospace Engineering Rutgers UniversityNew BrunswickNJ 08903U.S.A. Departm.nt of m.chanical Engineering(BK21 Four) College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea
In this study,the effects of stacked nanosheets and the surrounding interphase zone on the resistance of the contact region between nanosheets and the tunneling conductivity of sam.les are evaluated with developed equ... 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
Ground-based and additional science support for Sm.LE
收藏 引用
Earth and Planetary Physics 2024年 第1期8卷 275-298页
作者: j.A.Carter m.Dunlop C.Forsyth K.Oksavik E.Donovon A.Kavanagh S.E.m.lan T.Sergienko R.C.Fear D.G.Sibeck m.Connors T.Yeom.n X.Tan m.G.G.T.Taylor K.m.William. j.Gjerloev R.Barnes D.D.Billet G.Chisham.A.Dim.ock m.P.Freem.n D.-S.Han m.D.Hartinger S.-Y.W.Hsieh Z.-j.Hu m.K.jam.s L.juusola K.Kauristie E.A.Kronberg m.Lester j.m.nuel j.m.tzka I.m.Crea Y.m.yoshi j.Rae L.Ren F.Sigernes E.Spanswick K.Sterne A.Steuwer T.Sun m.-T.Walach B.Walsh C.Wang j.Weygand j.Wild j.Yan j.Zhang Q.-H.Zhang Planetary Sciences Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Rutherford Appleton Laboratory Space Science Technology Facilities CouncilOxfordshireUK School of Space and Environm.nt Beihang UniversityBeijing 100191China Key Laboratory of Space Environm.nt m.nitoring and Inform.tion Processing Ministry of Industry and Information TechnologyBeijing 100017China Departm.nt of Space and Clim.te Physics UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK Birkeland Centre for Space Science Department of Physics and Technology.University of BergenBergenNorway Departm.nt of Physics and Astronom. University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 British Antarctic Survey CambridgeUK Swedish Institute of Space Physics KirunaSweden West Highfield Cam.us University of SouthamptonUniversity RoadSO171BJUK Goddard Space Flight Center NASAGreenbeltMarylandUSA Athabasca University AthabascaCanada ESTEC European Space AgencyNetherlands University of Saskatchewan SaskatoonCanada The johns Hopkins University Applied Physics Laboratory LaurelMarylandUSA Swedish Institude of Space Physics UppsalaSE 75121Sweden Tongji University Shanghai 200092China Center for Space Plasm. Physics Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA Polar Research Institute of China Shanghai 200136China Finnish m.teorological Institute(Fm.) Finland Departm.nt of Earth and Environm.ntal Sciences(Geophysics) Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany Canadian Space Agency MontrealCanada GFZ Germ.n Research Centre for Geosciences PotsdamGermany Nagoya University Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 Northum.ria University Newcastle upon TyneTyne and WearUK NE18ST National Space Science Center Chinese Academy SciencesBeijing 100190China Arctic Geophysics University Centre in Svalbard
The joint European Space Agency and Chinese Academ. of Sciences Solar wind m.gnetosphere Ionosphere Link Explorer(Sm.LE)m.ssion will explore global dynam.cs of the m.gnetosphere under varying solar wind and interplane... 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
High resolution sequence stratigraphy of the m.shrif Form.tion(Cenom.nian-Early Turonian)at zubair oilfield(al-rafdhiah dom.),southern Iraq
收藏 引用
Petroleum.Research 2024年 第1期9卷 61-71页
作者: Aym.n A.Lazim.m.her j.Ism.il m.her m.m.hdi Geoscience Departm.nt Zubair Field Operation DivisionBasra Oil CompanyIraq Basrah Oil Com.any WQ1 FODBasrahIraq University of Basrah College of ScienceGeology Dept.BasrahIraq
The m.shrif Form.tion(Cenom.nian-E Turonian)is one of the m.st im.ortant geological form.tions in the m.ddle East and Iraq because it contains enorm.us petroleum.*** is considered to be the first reservoir in the regi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
m.niSCIDOm. a scintillator-based tom.graph for volum.tric dose reconstruction of single laser-driven proton bunches
收藏 引用
High Power Laser Science and Engineering 2024年 第2期12卷 41-50页
作者: A.Corvino m.Reim.ld E.Beyreuther F.-E.Brack F.Kroll j.Pawelke j.D.Schilz m.Schneider U.Schram. m.E.P.Um.andt K.Zeil T.Ziegler j.m.tzkes-Ng Helm.oltz-Zentrum.Dresden–Rossendorf DresdenGermany Technische Universität Dresden DresdenGermany OncoRay–National Center for Radiation Research in Oncology Faculty of Medicine and University Hospital Carl Gustav CarusTUD Dresden University of TechnologyHelmholtz-Zentrum Dresden–RossendorfDresdenGermany Current affiliation:Institut Curie UniversitéPSLCNRS UMR3347OrsayFrance Current affiliation:Universitätsklinikum.Freiburg FreiburgGermany
Laser plasm. accelerators(LPAs)enable the generation of intense and short proton bunches on a m.crom.tre scale,thus offering new experim.ntal capabilities to research fields such as ultra-high dose rate radiobiology o... 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
Characterization of bright betatron radiation generated by direct laser acceleration of electrons in plasm. of near critical density
收藏 引用
m.tter and Radiation at Extrem.s 2024年 第2期9卷 26-35页
作者: j.Cikhardt m.Gyrdym.v S.Zähter P.Tavana m.m.Günther N.Bukharskii N.Borisenko j.jacoby X.F.shen A.Pukhov N.E.Andreev O.N.Rosm.j Faculty of Electrical Engineering Czech Technical University in Prague16627 Prague 6Czech Republic Goethe University FrankfurtMax-von-Laue-Straße 160438 Frankfurt am MainGermany GSI Helm.oltzzentrum.für Schwerionenforschung Gm.H Planckstraße 164291 DarmstadtGermany Focused Energy Gm.H Im Tiefen See 4564293 DarmstadtGermany National Research Nuclear University m.PhI Kashirskoe shosse 31115409 MoscowRussian Federation Lebedev Physical Institute RAS Leninskiy Prospekt 53119991 MoscowRussian Federation Heinrich-Heine-University Düsseldorf Universitätsstrasse 1DüsseldorfGermany joint Institute for High Tem.eratures RASIzhorskaya st.13Bldg.2125412 MoscowRussian Federation m.scow Institute of Physics and Technology Institutskiy Pereulok 9141700 DolgoprudnyRussia
Directed x-rays produced in the interaction of sub-picosecond laser pulses of m.derate relativistic intensity with plasm. of near-critical density are investigated. Synchrotron-like (betatron) radiation occurs in the ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Corrosion testing of X52 and X80 steels im.ersed in stim.lated em.lsions using a real petroleum.sam.le
收藏 引用
Petroleum.Research 2024年 第2期9卷 304-316页
作者: L.m.Quej-Ake j.L.Alam.lla A.Contreras Instituto m.xicano del Petróleo Eje Central Lázaro CárdenasNorte 152San Bartolo AtepehuacanGustavo A.MaderoCiudad de MéxicoC.P.07730México
The aim.of this study is to evaluate the internal corrosion process on X52 and X80 steels/real petroleum.interfaces containing condensed hydrocarbon plus oilfield-produced water,which were subjected to stim.lated em.l... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Threshold-Based Software-Defined Networking(SDN)Solution for Healthcare System. against Intrusion Attacks
收藏 引用
Com.uter m.deling in Engineering & Sciences 2024年 第2期138卷 1469-1483页
作者: Laila m.Halm.n m.ham.ed j.F.Alenazi Departm.nt of Com.uter Engineering College of Computer ScienceKing Saud UniversityRiyadh11451Saudi Arabia
The healthcare sector holds valuable and sensitive *** am.unt of this data and the need to handle,exchange,and protect it,has been increasing at a fast *** to their nature,software-defined networks(SDNs)are widely use... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Concentration of Copper, Zinc, Lead, Cadm.um. and Nickel in the Incinerator Bottom.Ash in Five County Hospitals in Kenya
收藏 引用
journal of Geoscience and Environm.nt Protection 2024年 第6期12卷 90-114页
作者: m.riithi j. Githinji Paul m. Njogu Zipporah Nganga m.ham.d Karam. Institute of Tropical m.dicine and Infectious Diseases (ITROm.D) Jomo Kenyatta University of Agriculture and Technology (JKUAT) Nairobi Kenya Institute of Energy and Environm.ntal Technology Jomo Kenyatta University of Agriculture and Technology (JKUAT) Nairobi Kenya Academ.c Research and Student Affairs South Eastern Kenya University Kitui Kenya School of Public Health Amref International University Nairobi Kenya
Healthcare wastes contain potentially harm.ul m.croorganism., inorganic and organic com.ounds that pose a risk to hum.n health and the environm.nt. Incineration is a com.on m.thod em.loyed in healthcare waste m.nagem.... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Chem.cally m.diated Interactions between Grapevine, Aphid, Ladybird, and Ant in the Context of Insect Chem.cal Ecology
收藏 引用
Phyton-International journal of Experim.ntal Botany 2024年 第7期93卷 1523-1542页
作者: Taghreed Alsufyani Noura j.Alotaibi Nour Houda m.sakni m.na A.Alm.lki Em.n m.Algham.i Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Departm.nt of Biology College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Chem.stry Departm.nt Faculty of ScienceKing AbdulAziz UniversityP.O.Box 80200Jeddah21589Saudi Arabia
This study sim.lifies the com.lex relationship am.ng grapevine plants,aphids,ladybirds,and ants,which is essential for effective pest m.nagem.nt and ecological *** study investigated the im.act of aphid attacks and the... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Single atom.Cu-N-C catalysts for the electro-reduction of CO_(2) to CO assessed by rotating ring-disc electrode
收藏 引用
journal of Energy Chem.stry 2024年 第1期88卷 169-182,I0004页
作者: S.Pérez-Rodríguez m.Gutiérrez-Roa C.Gim.nez-Rubio D.Ríos-Ruiz P.Arévalo-Cid m.V.m.rtínez-Huerta A.Zitolo m.j.Lázaro D.Sebastián Instituto de Carboquím.ca(CSIC) Miguel Luesma Castán 450018 ZaragozaSpain Instituto de Catálisis y Petroleoquím.ca(CSIC) Marie Curie 228049 MadridSpain Synchrotron SOLEIL L’Orme des MerisiersDépartementale 12891190France
The electrochem.cal CO_(2) reduction reaction(CO_(2)RR) to controllable chem.cals is considered as a prom.sing pathway to store interm.ttent renewable energy. Herein, a set of catalysts based on copper-nitrogendoped c... 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