咨询与建议

限定检索结果

文献类型

  • 97,269 篇 期刊文献
  • 6,486 篇 会议
  • 2,997 册 图书
  • 96 篇 学位论文
  • 13 篇 报纸
  • 1 篇 多媒体

馆藏范围

  • 105,531 篇 电子文献
  • 1,396 种 纸本馆藏

日期分布

学科分类号

  • 42,700 篇 医学
    • 34,188 篇 临床医学
    • 4,509 篇 医学技术(可授医学...
    • 3,180 篇 基础医学(可授医学...
    • 3,086 篇 中西医结合
    • 2,514 篇 公共卫生与预防医...
    • 2,065 篇 药学(可授医学、理...
  • 35,653 篇 工学
    • 7,148 篇 材料科学与工程(可...
    • 4,420 篇 化学工程与技术
    • 3,972 篇 生物医学工程(可授...
    • 2,759 篇 电子科学与技术(可...
    • 2,479 篇 计算机科学与技术...
    • 2,202 篇 机械工程
    • 1,663 篇 动力工程及工程热...
    • 1,513 篇 仪器科学与技术
    • 1,456 篇 地质资源与地质工...
    • 1,312 篇 力学(可授工学、理...
    • 1,223 篇 光学工程
    • 1,197 篇 电气工程
  • 18,870 篇 理学
    • 3,443 篇 物理学
    • 3,385 篇 化学
    • 3,384 篇 数学
    • 2,756 篇 生物学
    • 1,669 篇 地质学
  • 7,803 篇 农学
    • 1,949 篇 作物学
    • 1,373 篇 农业资源与环境
    • 1,357 篇 畜牧学
  • 4,651 篇 管理学
    • 2,078 篇 管理科学与工程(可...
    • 1,472 篇 公共管理
  • 3,145 篇 经济学
    • 2,645 篇 应用经济学
  • 2,498 篇 教育学
    • 1,642 篇 教育学
  • 2,149 篇 法学
  • 1,618 篇 文学
  • 561 篇 历史学
  • 538 篇 艺术学
  • 478 篇 哲学
  • 166 篇 军事学

主题

  • 873 篇 ct
  • 868 篇 治疗
  • 714 篇 mri
  • 555 篇 病人
  • 548 篇 of
  • 531 篇 患者
  • 525 篇 诊断
  • 446 篇 儿童
  • 420 篇 and
  • 412 篇 美国
  • 376 篇 mr
  • 327 篇 中国
  • 297 篇 cancer
  • 237 篇 analysis
  • 226 篇 disease
  • 178 篇 energy
  • 163 篇 treatment
  • 160 篇 microstructure
  • 158 篇 model
  • 138 篇 in

机构

  • 200 篇 北京大学
  • 171 篇 四川省人民医院
  • 163 篇 上海第二医科大学...
  • 122 篇 中国人民大学
  • 108 篇 清华大学
  • 107 篇 中国人民公安大学
  • 91 篇 香港理工大学
  • 85 篇 华中科技大学
  • 83 篇 上海市第一人民医...
  • 83 篇 上海交通大学
  • 68 篇 university of mi...
  • 68 篇 南京大学
  • 68 篇 四川大学
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...

作者

  • 214 篇 叶鹏
  • 96 篇 郭俊
  • 94 篇 刘莉
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 84 篇 m.white
  • 84 篇 朱国栋
  • 72 篇 china
  • 60 篇 mohamed s. el na...
  • 52 篇 王铮
  • 50 篇 唐光健
  • 44 篇 p.de jong
  • 42 篇 郭战宏
  • 41 篇 linda m.chung
  • 40 篇 people’s bank of...
  • 37 篇 李长根
  • 37 篇 general administ...
  • 35 篇 刘凯
  • 34 篇 陈瑜

语言

  • 64,311 篇 中文
  • 42,540 篇 英文
  • 2 篇 法文
  • 1 篇 日文
  • 1 篇 其他
检索条件"作者=S.m.Len.i"
106862 条 记 录,以下是1-10 订阅
排序:
multimodal Literacy in a New Era of Educational Technology:Comparing Points of View in Animations of Children's and Adult Literature
收藏 引用
ECNU Review of Education 2024年 第2期7卷 384-405页
作者: len Unsworth institute for Learning sciences and Teacher Education Australian Catholic UniversityNorth Sydney CampusLevel 27Mount StNorth SydneyPo Box 968North SydneyNsW 2059Australia
Purpose The paper shows the interpretive impact of different constructions of the point of view available to the reader/viewer in book and animated movie versions of a children's picture book,a novel for pre-adolescen... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Rare earth based mgPm_(2)X_(4)(X=s,se) spinel chalcogenides for spintronic and thermoelectric applications
收藏 引用
Journal of Rare Earths 2024年 第8期42卷 1577-1585,I0006页
作者: Tariq m.Al-Daraghmeh Omar Zayed Ghulam m.mustafa Taharh Zelai Bisma Younas Hind Albalawi s.Bouzgarrou Othman Hakami Q.mahmood Khaild i.Hussein Basic sciences Department King Abdullah Ⅱ School of EngineeringPrincess Sumaya University For TechnologyP.O.Box 1438Al-jubaiha11941AmmanJordan Department of Physics Division of Science&TechnologyUniversity of EducationLahorePakistan Department of Physics Faculty of ScienceJazan University JazanSaudi Arabia Department of Physics The University of LahoreLahorePakistan Department of Physics College of SciencesPrincess Nourah bint Abdulrahman University(PNU)P.O.Box 84428Riyadh11671Saudi Arabia Department of Physics College of ScienceQassim UniversityPo.64BuraidahSaudi Arabia Laboratoire de microelectronique et instrumentation(UR 03/13-04) Faculte des Sciences de MonastirAvenue de I'Environnement 5000MonastirTunisia Department of Chemistry Faculty of ScienceJazan University JazanSaudi Arabia Basic&Applied scientific Research Center Department of PhysicsCollege of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam 31441Saudi Arabia Department of Radiological sciences College of Applied Medical SciencesKing Khalid UniversityAbha61421Saudi Arabia
in current report,the structural,magnetic,and thermoelectric properties of RE doped mgPm_(2)X_(4)(X=s,se) spinels were *** energy difference in ferromagnetic and antiferromagnetic states reveals the stability of mgPm_... 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
Enhancement of coercivity,permeability,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for memory and high frequency devices
收藏 引用
Journal of Rare Earths 2024年 第6期42卷 1128-1135,I0005页
作者: i.sardar m.D.Hossain m.s.sikder m.N.i.Khan m.R.Rahman Physics Discipline Khulna UniversityKhulna9208Bangladesh Department of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh Department ofComputer science and Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh material science Division Atomic Energy CentreDhaka1000Bangladesh
spinel cubic ferrites have huge applications in me mory and high frequency *** the improvement of these modern devices,the magnetic coercivity,permeability,and dielectric properties of a ferrite are the important *** ... 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
Development and testing of a high-power s-band klystron at BiNP sB RAs
收藏 引用
Nuclear science and Techniques 2024年 第7期35卷 58-67页
作者: A.Levichev A.Barnyakov s.samoylov D.Nikiforov V.ivanov m.Arsentyeva D.Chekmenev O.Pavlov i.Pivovarov Budker institute of Nuclear Physics Lavrentyeva Av.11NovosibirskRussia630090 Novosibirsk state University Pirogova Str.2NovosibirskRussia630090
This paper details the development and testing of the first working prototype of the s-band high-power klystron,accomplished at the Budker institute of Nuclear Physics,siberian Branch,Russian Academy of sciences(BiNP ... 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
Antibacterial HA-coatings on bioresorbable mg alloy
收藏 引用
Journal of magnesium and Alloys 2024年 第5期12卷 1965-1985页
作者: K.V.Nadaraia D.V.mashtalyar m.A.Piatkova A.i.Pleshkova i.m.imshinetskiy m.s.Gerasimenko E.A.Belov V.V.Kumeiko D.N.Kozyrev K.A.Fomenko V.V.mostovaya B.R.Torpanov A.R.Biktimirov i.s.Osmushko s.L.sinebryukhov s.V.Gnedenkov institute of Chemistry FEB RAs 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eastern Federal University 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirmunsky National scientific Center of marine Biology FEB RAs 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Dermatovenerological Dispensary 18 V St.GamarnikaVladivostok 690033Russia NmiC“Treatment and Rehabilitation Center” 3 Ivankovskoe highwayMoscow 125367Russia
in this study,a calcium-phosphate coating was formed on a mg-mn-Ce alloy by the plasma electrolytic oxidation(PEO).The antibiotic vancomycin,widely used in the treatment of infections caused by staphylococcus aureus(*... 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
A review of control strategies used for morphing aircraft applications
收藏 引用
Chinese Journal of Aeronautics 2024年 第4期37卷 436-463页
作者: muhammed s.PARANCHEERiViLAKKATHiL Jafar s.PiLAKKADAN Rafic m.AJAJ mohammadreza AmOOZGAR Davood AsADi Yahya ZWEiRi michael i.FRisWELL Department of Aerospace Engineering Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Department of Aerospace Engineering Advanced Research and Innovation Center(ARIC)Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Department of mechanical Materials&Manufacturing EngineeringUniversity of NottinghamNottingham NG72RDUK Department of Aerospace Engineering Adana Alparslan Turkes Science and Technology UniversityTurkey College of Engineering Swansea UniversitySwansea SA18ENUK
This paper reviews the various control algorithms and strategies used for fixed-wing morphing aircraft applications. it is evident from the literature that the development of control algorithms for morphing aircraft t... 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
investigation of the transformation of organic matter of carbonate deposits of the semiluksky-mendymsky horizon under hydrothermal conditions
收藏 引用
Petroleum 2024年 第2期10卷 216-223页
作者: s.m.Petrov A.i.Lakhova E.G.moiseeva A.G.safiulina institute of Petroleum Chemistry and NanotechnologiesKazan National Research Technological UniversityKazan420015Russia institute of Geology and Oil and Gas Technologies Kazan Federal UniversityKazan420008Russia
The paper presents the results of studies on the transformation of the organic matter of siliceous-clayey carbonate rocks of the semiluksko-mendymsky horizon of the Romashkino oil field in a hydrothermal fluid for an ... 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
Effect of proton irradiation on the optical properties of thermal control coating based on polystyrene with silica filler
收藏 引用
Propulsion and Power Research 2024年 第1期13卷 1-11页
作者: N.i.Cherkashina V.i.Pavlenko m.m.mikhailov A.N.Lapin s.A.Yuriev R.V.sidelnikov D.s.Romanyuk Belgorod state Technological University named after V.G.shoukhov Kostyukov Str.46Belgorod 308012Russia Tomsk state University of Control systems and Radioelectronics 40Prospect LeninaTomsk 634050Russia
This paper presents the results of studying the surface properties changes of a ther-moregulating coating based on polystyrene and silicafiller after proton irradiation with an en-ergy of 50 keV at afluence of 3�1015 c... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effect of Ta_(2)O_(5)nanoparticles on bioactivity,composition,structure,in vitro and in vivo behavior of PEO coatings on mg-alloy
收藏 引用
Journal of magnesium and Alloys 2024年 第6期12卷 2360-2379页
作者: D.V.mashtalyar i.m.imshinetskiy V.V.Kashepa K.V.Nadaraia m.A.Piatkova A.i.Pleshkova K.A.Fomenko A.Yu.Ustinov s.L.sinebryukhov s.V.Gnedenkov institute of Chemistry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eastern Federal University Vladivostok690950Russia Regional Clinical Dermatovenerological Dispensary Vladivostok690033Russia
The present study investigates the physical and chemical characteristics,behavior in vitro and in vivo,and biocompatibility of coatings containing Ta_(2)O_(5),which are obtained by plasma electrolytic oxidation(PEO)on... 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
Astrophysical s-factor and reaction rate for 15N(p,γ)16O within the modified potential cluster model
收藏 引用
Chinese Physics C 2024年 第4期48卷 130-145页
作者: s.B.Dubovichenko A.s.Tkachenko R.Ya.Kezerashvili N.A.Burkova B.m.Yeleusheva Fesenkov Astrophysical institute 050020 AlmatyKazakhstan New York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate school and University Center City University of New York10016 New YorkUSA al-Farabi Kazakh National University 050040 AlmatyKazakhstan
We study radiative p^(15)N capture on the ground state of ^(16)O at stellar energies within the framework of a modified potential cluster model(mPCm)with forbidden states,including low-lying *** investigation of the ^... 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