咨询与建议

限定检索结果

文献类型

  • 22,447 篇 期刊文献
  • 1,243 篇 会议
  • 633 册 图书
  • 4 篇 学位论文

馆藏范围

  • 24,109 篇 电子文献
  • 234 种 纸本馆藏

日期分布

学科分类号

  • 9,268 篇 工学
    • 2,139 篇 材料科学与工程(可...
    • 1,211 篇 化学工程与技术
    • 1,196 篇 生物医学工程(可授...
    • 676 篇 电子科学与技术(可...
    • 616 篇 机械工程
    • 435 篇 电气工程
    • 404 篇 计算机科学与技术...
    • 390 篇 仪器科学与技术
    • 383 篇 地质资源与地质工...
    • 366 篇 动力工程及工程热...
    • 350 篇 水利工程
    • 337 篇 光学工程
    • 327 篇 环境科学与工程(可...
  • 8,841 篇 医学
    • 7,109 篇 临床医学
    • 1,209 篇 医学技术(可授医学...
    • 874 篇 基础医学(可授医学...
    • 677 篇 中西医结合
    • 563 篇 公共卫生与预防医...
    • 478 篇 药学(可授医学、理...
  • 5,016 篇 理学
    • 995 篇 物理学
    • 903 篇 生物学
    • 814 篇 化学
    • 580 篇 地质学
    • 517 篇 数学
    • 315 篇 地球物理学
  • 2,299 篇 农学
    • 520 篇 作物学
    • 508 篇 畜牧学
    • 436 篇 农业资源与环境
  • 832 篇 管理学
    • 385 篇 管理科学与工程(可...
  • 471 篇 教育学
  • 443 篇 经济学
    • 362 篇 应用经济学
  • 306 篇 文学
  • 297 篇 法学
  • 170 篇 历史学
  • 112 篇 艺术学
  • 90 篇 哲学
  • 34 篇 军事学

主题

  • 149 篇 患者
  • 134 篇 mri
  • 125 篇 ct
  • 71 篇 mr
  • 64 篇 cancer
  • 52 篇 病人
  • 50 篇 队列研究
  • 49 篇 rare earths
  • 43 篇 analysis
  • 42 篇 covid-19
  • 42 篇 高血压
  • 40 篇 corrosion
  • 36 篇 基因
  • 35 篇 temperature
  • 34 篇 数据大百科
  • 33 篇 structure
  • 31 篇 diabetes
  • 27 篇 acid
  • 27 篇 health
  • 27 篇 simulation

机构

  • 125 篇 中国科学院大学
  • 104 篇 北京交通大学
  • 83 篇 西安交通大学
  • 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...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 NOT FOUND
  • 67 篇 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 66 篇 national researc...
  • 66 篇 department of ph...
  • 66 篇 department of ph...
  • 65 篇 nstitucio catala...
  • 64 篇 max-planck-insti...

作者

  • 110 篇 叶鹏
  • 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
  • 84 篇 m.white
  • 84 篇 m.drees
  • 76 篇 p.de jong
  • 74 篇 s.blusk
  • 74 篇 o.dahl
  • 73 篇 b.foster
  • 66 篇 k.monig
  • 64 篇 g.rybka
  • 64 篇 a.ringwald
  • 59 篇 v.i.belousov
  • 59 篇 j.beringer

语言

  • 15,638 篇 中文
  • 8,681 篇 英文
  • 3 篇 其他
  • 1 篇 法文
检索条件"作者=J.J.q.n"
24327 条 记 录,以下是1-10 订阅
排序:
Effect of dietary fibre on the gastrointestinal microbiota during critical illness:A scoping review
收藏 引用
World journal of Critical Care Medicine 2025年 第1期14卷 49-59页
作者: Angajendra n Ghosh Calum j Walsh Matthew j Maiden Tim P Stinear Adam M Deane Department of Intensive Care The Northern HospitalEpping 3076VictoriaAustralia Department of Microbiology and Immunology The Peter Doherty Institute for Infection and ImmunityMelbourne 3052VictoriaAustralia Department of Intensive Care The Royal Melbourne HospitalThe University of MelbourneParkville 3050VictoriaAustralia Department of Intensive Care Medicine The Royal Melbourne HospitalParkville 3050VictoriaAustralia
The systemic effects of gastrointestinal(GI)microbiota in health and during chronic diseases is increasingly *** strategies to modulate the GI microbiota during chronic diseases have demonstrated *** changes in dietar... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effects of the Reversely Rotating Assisted Shoulder on Microstructures During the Reverse Dual-rotation Friction Stir Welding
收藏 引用
journal of Materials Science & Technology 2015年 第4期31卷 375-383页
作者: j.q.Li H.j.Liu State Key Laboratory of Advanced Welding and joining Harbin Institute of Technology Capital Aerospace Machinery Company
The reverse dual-rotation friction stir welding(RDR-FSW) has the capability to adjust the heat generation because of the separately designed tool shoulder and tool *** welding torque exerted on the workpiece by the re... 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 brief review:experimental investigation of zonal flows and geodesic acoustic modes in fusion plasmas
收藏 引用
Plasma Science and Technology 2018年 第9期20卷 72-84页
作者: K j ZHAO j q DOnG j q LI L W YAn Southwestern Institution of Physics Chengdu 610041People's Republic of China
Zonal flows self-generated by turbulence play an important role in regulating turbulence,reducing transport level,and thus improve plasma confinement in fusion *** zonal flows and geodesic acoustic modes have been ide... 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
Small extrachromosomal circular DnA in amyotrophic lateral sclerosis matter
收藏 引用
neural Regeneration Research 2025年 第5期20卷 1411-1413页
作者: Marcos j.Arauzo-Bravo Daniela Gerovska Matthias Schwab Alexandra Kretz Computational Biology and Systems Biomedicine Biodonostia Health Research InstituteSan SebastianSpain Basque Foundation for Science IKERBASQUEBilbaoSpainMax Planck Institute for Molecular BiomedicineComputational Biology and Bioinformatics GroupMünsterNorth Rhine-WestphaliaGermany Department of Cell Biology and Histology Faculty of Medicine and NursingUniversity of Basque Country(UPV/EHU)LeioaSpain Department of neurology Jena University HospitalJenaThuringiaGermany
Comprehensive studies identify motor neuron spectrum disorders including amyotrophic lateral sclerosis(ALS)as globally rising fatal disorders with the highest prevalence in aging populations,influenced by ethnicity 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
Stability and optoelectronic property of low-dimensional organic tin bromide perovskites
收藏 引用
Chinese Physics B 2021年 第3期30卷 483-487页
作者: j H Lei q Tang j He M q Cai School of Science Hunan University of TechnologyZhuzhou 412007China School of Physics and Electronics Science Hunan UniversityChangsha 410082China
The toxicity and degradation of hybrid lead-halide perovskites hinder their extensive *** is thus of great importance to explore non-toxic alternative materials with excellent stability and optoelectronic *** investig... 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
Clinical,laboratory,and therapeutic differences between immunoglobulin E-mediated and non-immunoglobulin E-mediated cow’s milk protein allergy in children
收藏 引用
World journal of Clinical Pediatrics 2025年 第1期14卷 78-92页
作者: Hasan M Isa Marwa j Abdulnabi nawra S naser Fatema n Lahmda noor M AlAnsari Zahra H Isa Afaf M Mohamed Department of Pediatrics Salmaniya Medical ComplexManama 26671Bahrain Department of Pediatrics Arabian Gulf UniversityManama 26671Bahrain Faculty of Medicine Mansoura UniversityMansoura 35516Egypt Public Health Directorate Ministry of HealthManama 26671Bahrain
BACKGROUnD Although breast milk is ideal for newborns,in some cases,it is replaced with cow’s milk,which contains proteins that increase the risk of cow’s milk protein allergy(CMPA).AIM To evaluate CMPA prevalence i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Bayesian Deep Learning for Dynamic Power System State Prediction Considering Renewable Energy Uncertainty
收藏 引用
journal of Modern Power Systems and Clean Energy 2022年 第4期10卷 913-922页
作者: Shiyao Zhang james j.q.Yu Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China Department of Computer Science and Engineering Southern University of Science and TechnologyShenzhen 518055China
Modern power systems are incorporated with distributed energy sources to be environmental-friendly and ***,due to the uncertainties of the system integrated with renewable energy sources,effective strategies need to b... 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 hybrid multi-degree-of-freedom vibration isolation platform for spacecrafts by the linear active disturbance rejection control
收藏 引用
Applied Mathematics and Mechanics(English Edition) 2020年 第5期41卷 805-818页
作者: Weichao CHI S.j.MA j.q.SUn College of Science Northeastern UniversityShenyang 100819China Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines Northeastern UniversityShenyang 100819China Department of Mechanical Engineering School of EngineeringUniversity of CaliforniaMercedCA 95343U.S.A.
The hybrid vibration isolation, which takes advantages of both the passive and active approaches, has been an important solution for space missions. The objective of this paper is to design a vibration isolation platf... 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
Active{1121}and{1012}extension twinning in a WE43 Mg alloy
收藏 引用
journal of Materials Science & Technology 2023年 第13期144卷 93-101页
作者: W.q.Chen S.Deng X.j.Zhao S.n.Luo Key Laboratory of Advanced Technologies of Materials Ministry of EducationSouthwest Jiaotong UniversityChengdu 610031China The Peac Institute of Multiscale Sciences Chengdu 610031China
Deformation twinning in a WE43 alloy subjected to uniaxial compression at room temperature is ***{1121}and{1012}extension twinning is *** activation of{1121}twinning in a certain grain is influenced not only by its ow... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Finite Element Analysis of Push-Out Test of SiC Fiber Reinforced Titanium Matrix Composites
收藏 引用
稀有金属材料与工程 2009年 第A03期38卷 50-53页
作者: Yuan M n Yang Y q Huang B Zhang R j School of Materials Northwestern Polytechnical University Xi'an 710072 China
Based on the interphase layer model and the spring layer model, an improved interface model was developed to evaluate the interfacial shear strength of Titanium matrix composites(TMCs) and to analyze the effects of va... 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