咨询与建议

限定检索结果

文献类型

  • 73,589 篇 期刊文献
  • 4,638 篇 会议
  • 3,582 册 图书
  • 136 篇 学位论文
  • 28 篇 报纸

馆藏范围

  • 80,363 篇 电子文献
  • 1,673 种 纸本馆藏

日期分布

学科分类号

  • 29,414 篇 工学
    • 5,619 篇 材料科学与工程(可...
    • 3,378 篇 化学工程与技术
    • 2,785 篇 生物医学工程(可授...
    • 2,138 篇 电子科学与技术(可...
    • 2,040 篇 机械工程
    • 1,917 篇 计算机科学与技术...
    • 1,491 篇 地质资源与地质工...
    • 1,338 篇 动力工程及工程热...
    • 1,303 篇 仪器科学与技术
    • 1,120 篇 水利工程
    • 1,072 篇 电气工程
    • 1,016 篇 环境科学与工程(可...
  • 26,846 篇 医学
    • 21,867 篇 临床医学
    • 3,026 篇 医学技术(可授医学...
    • 2,252 篇 基础医学(可授医学...
    • 1,995 篇 中西医结合
    • 1,696 篇 公共卫生与预防医...
    • 1,254 篇 药学(可授医学、理...
  • 14,064 篇 理学
    • 2,520 篇 化学
    • 2,495 篇 物理学
    • 2,116 篇 生物学
    • 1,989 篇 数学
    • 1,566 篇 地质学
  • 6,884 篇 农学
    • 1,623 篇 作物学
    • 1,490 篇 畜牧学
    • 1,116 篇 农业资源与环境
  • 3,394 篇 管理学
    • 1,505 篇 管理科学与工程(可...
    • 1,030 篇 公共管理
  • 2,416 篇 经济学
    • 2,112 篇 应用经济学
  • 2,003 篇 教育学
    • 1,398 篇 教育学
  • 1,488 篇 文学
  • 1,402 篇 法学
  • 637 篇 艺术学
  • 539 篇 历史学
  • 408 篇 哲学
  • 179 篇 军事学

主题

  • 650 篇 ct
  • 565 篇 美国
  • 562 篇 mri
  • 378 篇 患者
  • 349 篇 病人
  • 294 篇 mr
  • 279 篇 of
  • 234 篇 and
  • 220 篇 北美洲
  • 211 篇 analysis
  • 190 篇 cancer
  • 168 篇 治疗
  • 159 篇 美利坚合众国
  • 145 篇 disease
  • 137 篇 中国
  • 133 篇 诊断
  • 116 篇 acid
  • 102 篇 儿童
  • 102 篇 方程
  • 97 篇 应用

机构

  • 126 篇 北京大学
  • 82 篇 南京大学
  • 76 篇 同济大学
  • 73 篇 university of ch...
  • 70 篇 清华大学
  • 68 篇 university of mi...
  • 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 department of ph...
  • 66 篇 national researc...
  • 66 篇 rudolf peierls c...
  • 66 篇 nstitucio catala...
  • 64 篇 school of physic...
  • 63 篇 ludwig-maximilia...
  • 60 篇 cea/saclay dsm/i...

作者

  • 173 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 83 篇 刘莉
  • 76 篇 kevin d.hyde
  • 73 篇 p.de jong
  • 58 篇 朱国栋
  • 52 篇 郭俊
  • 48 篇 李长根
  • 47 篇 王铮
  • 45 篇 v.i.belousov
  • 45 篇 china
  • 44 篇 阿d
  • 41 篇 唐光健
  • 37 篇 崔荣
  • 34 篇 d boy
  • 30 篇 余英豪
  • 27 篇 l.littenberg

语言

  • 51,160 篇 中文
  • 30,796 篇 英文
  • 1 篇 德文
  • 1 篇 法文
  • 1 篇 日文
检索条件"作者=D.N.Aristov"
81973 条 记 录,以下是91-100 订阅
排序:
Two-dimensional magnetic materials for spintronic applications
收藏 引用
nano Research 2024年 第2期17卷 743-762页
作者: Shivam n.Kajale Jad Hanna Kyuho Jang deblina Sarkar MIT Media Lab Massachusetts Institute of TechnologyCambridgeMA 02139USA department of Information Technology and Electrical Engineering ETH ZürichZürich8092Switzerland
Spintronic devices are driving new paradigms of bio-inspired,energy efficient computation like neuromorphic stochastic computing and in-memory *** have also emerged as key candidates for non-volatile memories for embe... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Integrative Analysis of Transcriptome and Phenolic Compounds Profile Provides Insights into the Quality of Soursop (Annona muricata L.) Fruit
收藏 引用
Phyton-International Journal of Experimental Botany 2024年 第7期93卷 1717-1732页
作者: Yolotzin Apatzinn Palomino-Hermosillo Ángel Elpidio díaz-Jasso Rosendo Balois-Morales Verónica AlhelíOchoa-Jiménez Pedro Ulises Bautista-Rosales Guillermo Berumen-Varela Unidad de Tecnología de Alimentos-Secretaría de Investigación y Posgrado Universidad Autónoma de Nayarit.Ciudad de la Cultura SNTepic63000NayaritMéxico Programa Académico de Biología Unidad Académica de AgriculturaUniversidad Autónoma de NayaritKm.9.Carretera Tepic-CompostelaXalisco63780NayaritMéxico Estancias Posdoctorales-Consejo nacional de Humanidades Ciencias y TecnologíasCoordinación de Apoyos a Becarios e InvestigadoresDirección de PosgradoCiudad de México03940México
Soursop(Annona muricata L.)is a tropical fruit highly valued for its uniqueflavor,nutritional value,and health-promoting *** ripening process of soursop involves complex changes in gene expression and metabo-lite accum... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effect of cold-working on corrosion induced damage in lug joints
收藏 引用
defence Technology(防务技术) 2024年 第6期36卷 175-182页
作者: Ramanath M.n Chikmath L. Murthy H. department of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India department of Aeronautical Engineering KLS Gogte Institute of TechnologyBelagavi 590008India
Lug joints are preferred joineries for transferring heavy loads to parent components in aerospace *** experience corrosion due to environmental conditions,improper surface finishes and rubbing displacement between 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
Symmetry quantification and segmentation in STEM imaging through Zernike moments
收藏 引用
Chinese Physics B 2024年 第8期33卷 39-48页
作者: Jiadong dan Cheng Zhang 赵晓续 n.duane Loh department of Biological Sciences National University of SingaporeSingapore Center for Bioimaging Sciences(CBIS) National University of SingaporeSingapore department of Physics National University of SingaporeSingapore School of Materials Science and Engineering Peking UniversityBeijing 100871China
We present a method using Zernike moments for quantifying rotational and reflectional symmetries in scanning transmission electron microscopy(STEM)images,aimed at improving structural analysis of materials at the atom... 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
Improved Leap-frog Method for Time-domain Fault Location
收藏 引用
Journal of Modern Power Systems and Clean Energy 2024年 第2期12卷 670-674页
作者: Izudin džafić Rabih A.Jabr Faculty of Electrical Engineering University of SarajevoSarajevo 71000Bosnia and Herzegovina department of Electrical and Computer Engineering American University of BeirutBeirut 11072020Lebanon IEEE
The partial differential equation(PdE)solution of the telegrapher is a promising fault location method among time-domain and model-based *** research works have shown that the leap-frog process is superior to other ex... 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 Effect of External Magnetic Field on Electron Scale Kelvin–Helmholtz Instability
收藏 引用
Research in Astronomy and Astrophysics 2024年 第9期24卷 236-247页
作者: d.Tsiklauri Joule Physics Laboratory School of ScienceEngineering and EnvironmentUniversity of SalfordManchesterM54WTUK
We use particle-in-cell,fully electromagnetic,plasma kinetic simulation to study the effect of external magnetic field on electron scale Kelvin–Helmholtz instability(ESKHI).The results are applicable to collisionless... 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
Comparison of mismatch repair and immune checkpoint protein profile with histopathological parameters in pancreatic,periampullary/ampullary,and choledochal adenocarcinomas
收藏 引用
World Journal of Gastrointestinal Oncology 2024年 第3期16卷 875-882页
作者: Arzu Hazal Aydın nesrin Turhan department of Pathology Aksaray University Aksaray Training and Research HospitalAksaray 68200Turkey department of Pathology University of Health Sciences Ankara City HospitalAnkara 06800Turkey
BACKGROUnd Pancreatic,periampullary/ampullary,and choledochal adenocarcinomas are aggressive malignancies with a poor *** checkpoint blockade is a promising treatment option for several tumor types.H long terminal rep... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
decomposition mechanisms of nuclear-grade cationic exchange resin by advanced oxidation processes:Statistical molecular fragmentation model and dFT calculations
收藏 引用
Journal of Environmental Sciences 2024年 第1期135卷 433-448页
作者: Xiang Meng Pierre désesquelles Lejin Xu department of nuclear Engineering and Technology School of Energy and Power EngineeringHuazhong University of Science&TechnologyWuhan 430074China CnRS Laboratoire de Physique des Gaz et des PlasmasUniversitéParis-SaclayOrsay 91405France State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074China
The treatment and disposal of radioactive waste are presently facing great *** ion exchange resins have become a focus of attention due to their high production and serious environmental *** this paper,a simplified mo... 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
Optimizing laser coupling,matter heating,and particle acceleration from solids using multiplexed ultraintense lasers
收藏 引用
Matter and Radiation at Extremes 2024年 第4期9卷 16-28页
作者: Weipeng Yao Motoaki nakatsutsumi Sébastien Buffechoux Patrizio Antici Marco Borghesi Andrea Ciardi Sophia n.Chen Emmanuel d’Humières Laurent Gremillet Robert Heathcote Vojtech Horny Paul McKenna Mark n.Quinn Lorenzo Romagnani Ryan Royle Gianluca Sarri Yasuhiko Sentoku Hans-Peter Schlenvoigt Toma Toncian Olivier Tresca Laura Vassura Oswald Willi Julien Fuchs LULI-CnRS CEASorbonne UniversitéEcole PolytechniqueInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance Sorbonne Université Observatoire de ParisUniversité PSLCNRSLERMAF-75005 ParisFrance InRS-EMT 1650 BoulLionel-BouletVarennesQuebec J3X 1S2Canada Center for Plasma Physics School of Mathematics and PhysicsQueen’s University BelfastBelfast BT71NNUnited Kingdom “Horia Hulubei”national Institute for Physics and nuclear Engineering 30 Reactorului StreetRO-077125 Bucharest-MagureleRomania University of Bordeaux Centre Lasers Intenses et ApplicationsCNRSCEAUMR 5107F-33405 TalenceFrance CEA DAMDIFF-91297 ArpajonFrance Université Paris-Saclay CEALMCE91680 Bruyères-le-ChatelFrance Central Laser Facility STFC Rutherford Appleton LaboratoryDidcotUnited Kingdom SUPA Department of PhysicsUniversity of StrathclydeGlasgow G40NGUnited Kingdom department of Physics University of NevadaRenoNevada 89557USA Institute of Laser Engineering Osaka University2-6 YamadaokaSuitaOsaka 565-0871Japan Institut fur Laser und Plasmaphysik Heinrich Heine Universitat DusseldorfDusseldorfGermany
Realizing the full potential of ultrahigh-intensity lasers for particle and radiation generation will require multi-beam arrangements due to technology ***,we investigate how to optimize their coupling with solid ***,... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
The relationship between dnA fragmentation and the intensity of morphologically abnormal human spermatozoa
收藏 引用
Asian pacific Journal of Reproduction 2024年 第1期13卷 22-27页
作者: Mercedes González-Martínez Pascual Sánchez-Martín Carmen López-Fernández Stephen d.Johnston Jaime Gosálvez Clínica Ginemed Unidad de ReproducciónSevillaSpain department of Biology Universidad Autónoma de MadridCantoblancoMadridSpain School of Environment The University of QueenslandGattonAustralia School of Veterinary Science The University of QueenslandGattonAustralia
Objective:To determine the relationship between teratozoospermia and sperm dnA fragmentation(SdF)in the human ***:This retrospective study included 100 normozoospermic men as a control cohort(abnormal forms>14%),210 p... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论