咨询与建议

限定检索结果

文献类型

  • 44,688 篇 期刊文献
  • 4,130 篇 会议
  • 2,855 册 图书
  • 51 篇 学位论文
  • 9 篇 报纸

馆藏范围

  • 50,641 篇 电子文献
  • 1,186 种 纸本馆藏

日期分布

学科分类号

  • 19,421 篇 工学
    • 3,983 篇 材料科学与工程(可...
    • 2,677 篇 化学工程与技术
    • 1,588 篇 生物医学工程(可授...
    • 1,300 篇 机械工程
    • 1,294 篇 电子科学与技术(可...
    • 1,024 篇 计算机科学与技术...
    • 968 篇 动力工程及工程热...
    • 953 篇 地质资源与地质工...
    • 930 篇 水利工程
    • 886 篇 力学(可授工学、理...
    • 837 篇 矿业工程
    • 786 篇 仪器科学与技术
    • 670 篇 电气工程
  • 14,902 篇 医学
    • 11,635 篇 临床医学
    • 1,705 篇 医学技术(可授医学...
    • 1,385 篇 基础医学(可授医学...
    • 1,346 篇 中西医结合
    • 1,070 篇 公共卫生与预防医...
    • 960 篇 药学(可授医学、理...
  • 9,666 篇 理学
    • 2,002 篇 化学
    • 1,877 篇 物理学
    • 1,389 篇 生物学
    • 1,336 篇 数学
    • 1,066 篇 地质学
  • 4,222 篇 农学
    • 1,066 篇 作物学
    • 874 篇 畜牧学
  • 2,238 篇 管理学
    • 979 篇 管理科学与工程(可...
    • 702 篇 公共管理
  • 1,563 篇 经济学
    • 1,297 篇 应用经济学
  • 1,488 篇 教育学
    • 1,006 篇 教育学
  • 1,055 篇 法学
  • 838 篇 文学
  • 422 篇 哲学
  • 408 篇 历史学
  • 326 篇 艺术学
  • 115 篇 军事学

主题

  • 266 篇 ct
  • 250 篇 美国
  • 239 篇 患者
  • 213 篇 mri
  • 164 篇 病人
  • 134 篇 俄罗斯
  • 132 篇 mr
  • 109 篇 analysis
  • 106 篇 北美洲
  • 105 篇 and
  • 100 篇 苏联
  • 84 篇 美利坚合众国
  • 80 篇 of
  • 74 篇 思维形式
  • 72 篇 microstructure
  • 64 篇 diabetes
  • 63 篇 苏维埃社会主义共...
  • 57 篇 corrosion
  • 52 篇 并发症
  • 52 篇 中国

机构

  • 94 篇 同济医科大学附属...
  • 80 篇 北京大学
  • 73 篇 南京大学
  • 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...
  • 66 篇 national researc...
  • 66 篇 nstitucio catala...
  • 66 篇 department of ph...
  • 66 篇 school of physic...
  • 66 篇 ludwig-maximilia...
  • 65 篇 cea/saclay dsm/i...
  • 65 篇 department of ph...

作者

  • 109 篇 china
  • 95 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 82 篇 v.i.belousov
  • 74 篇 v.burkert
  • 60 篇 l.pape
  • 59 篇 kavli ipmu
  • 59 篇 y.hayato
  • 56 篇 a.v.gritsan
  • 40 篇 王铮
  • 37 篇 a.gurtu
  • 34 篇 李长根
  • 34 篇 朱国栋
  • 34 篇 m.carena
  • 33 篇 e.b.怀特
  • 30 篇 robert b. raffa

语言

  • 32,734 篇 中文
  • 18,987 篇 英文
  • 2 篇 其他
检索条件"作者=R.P.b.att"
51733 条 记 录,以下是61-70 订阅
排序:
CompactChain:an efficient stateless chain for UTXO-model blockchain
收藏 引用
Frontiers of Computer Science 2024年 第2期18卷 167-179页
作者: b Swaroopa rEDDY T Uday Kiran rEDDY Department of Electrical Engineering Indian Institute of Technology HyderabadHyderabadTelangana 502285India
In this work,we propose a stateless blockchain called CompactChain,which compacts the entire state of the UTXO(Unspent Transaction Output)based blockchain systems into two rSA *** first accumulator is called Transacti... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Spatial analysis of Dengue through the reproduction numbers relating to socioeconomic features:Case studies on two brazilian urban centers
收藏 引用
Infectious Disease Modelling 2024年 第1期9卷 142-157页
作者: Ana T.C.Silva rejane C.Dorn Lívia r.Tomás Leonardo b.L.Santos Lacita M.Skalinski Suani T.r.pinho Departamento de Física Universidade Estadual de Feira de SantanaAv.Transnordestinas/n.Novo HorizonteFeira de Santana44036-900BABrazil Instituto de Física Universidade Federal da BahiaRua Barão de Jeremoabo s/nCampus Universitário de OndinaSalvador40170-115BABrazil Centro Nacional de Monitoramento e Alertas de Desastres Naturais(CEMADEN) Estrada Dr.Altino Bondensan500São Josédos Campos12247-016SPBrazil Universidade Estadual de Santa Cruz Campus Soane Nazaréde AndradeRodovia Jorge AmadoKm 16SalobrinhoIlhéus45662-900BABrazil Instituto de Saúde Coletiva Universidade Federal da BahiaR.Basílio da Gamas/n-CanelaSalvador40110-140BABrazil Instituto Nacional de Ciência e Tecnologia-Sistemas Complexos Virtual InstitutionBrazil
The study of the propagation of infectious diseases in urban centers finds a close connection with their population's social characteristics and *** work performs a spatial analysis of dengue cases in urban centers ba... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Collisionless shock acceleration of protons in a plasma slab produced in a gas jet by the collision of two laser-driven hydrodynamic shockwaves
收藏 引用
Matter and radiation at Extremes 2024年 第2期9卷 12-25页
作者: J.-r.Marquès L.Lancia p.Loiseau p.Forestier-Colleoni M.Tarisien E.Atukpor V.bagnoud C.brabetz F.Consoli J.Domange F.Hannachi p.Nicolaï M.Salvadori b.Zielbauer LULI CNRSÉcole PolytechniqueCEASorbonne UniversitéInstitut Polytechnique de Paris91128 Palaiseau CedexFrance CEA DAMDIF91297 Arpajon CedexFrance Universitéparis-Saclay CEALMCE91680 Bruyères-le-ChatelFrance CENbG CNRS-IN2P3Universitéde Bordeaux33175 Gradignan CedexFrance GSI Helmholtzzentrum für Schwerionenforschung GmbH Planckstraße 164291 DarmstadtGermany University of Darmstadt Schloßgartenstr.764289 DarmstadtGermany ENEA Fusion and Technologies for Nuclear Safety Department C.R.FrascatiVia Enrico Fermi 45FrascatiRomeItaly CELIA Universitéde Bordeaux–CNRS–CEA33405 TalenceFrance Universitéparis-Saclay CEALIDYL91191 Gif-sur-YvetteFrance
We have recently proposed a new technique of plasma tailoring by laser-driven hydrodynamic shockwaves generated on both sides of a gas jet[Marquès et al.,*** 28,023103(2021)].In a continuation of this numerical work,... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Closing the Experiment-Modeling-perturbation Loop in Whole-brain Neuroscience
收藏 引用
Neuroscience bulletin 2024年 第8期40卷 1212-1214页
作者: Misha b.Ahrens Janelia research Campus Howard Hughes Medical InstituteAshburnVAUSA
Understanding the mechanisms by which the central nervous system processes information,forms memories,makes decisions,and executes actions is a challenging *** is an interdisciplinary field in which cell biology,anato... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Towards global coverage of gridded parameterization for CLImate GENerator(CLIGEN)
收藏 引用
big Earth Data 2024年 第1期8卷 142-165页
作者: Andrew T.Fullhart Guillermo E.ponce-Campos Menberu b.Meles ryan p.McGehee Haiyan Wei Gerardo Armendariz Shea burns David C.Goodrich Southwest Watershed research Center USDA-ArS TucsonAZUSA School of Natural resources and the Environment University of ArizonaTucsonAZUSA Sustainable Agricultural Water Systems Unit USDA-ArS DavisCAUSA Agricultural and biosystems Engineering Iowa State UniversityAmesIAUSA
Stochastic weather generators create time series that reproduce key weather dynamics present in long-term *** dataset detailed herein is a large-scale gridded parameterization for CLImate GENerator(CLIGEN)that fills s... 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 Chemistry 2024年 第1期88卷 169-182,I0004页
作者: S.pérez-rodríguez M.Gutiérrez-roa C.Giménez-rubio D.ríos-ruiz p.Arévalo-Cid M.V.Martínez-Huerta A.Zitolo M.J.Lázaro D.Sebastián Instituto de Carboquímica(CSIC) Miguel Luesma Castán 450018 ZaragozaSpain Instituto de Catálisis y petroleoquímica(CSIC) Marie Curie 228049 MadridSpain Synchrotron SOLEIL L’Orme des MerisiersDépartementale 12891190France
The electrochemical CO_(2) reduction reaction(CO_(2)rr) to controllable chemicals is considered as a promising pathway to store intermittent 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
Stromal cell decidualization and embryo implantation: a vulnerable step leading to successful pregnancy
收藏 引用
reproductive and Developmental Medicine 2024年 第2期8卷 101-110页
作者: Luhan Jiang Sudini r.Fernando Suranga p.Kodithuwakku Dandan Cao William S.b.Yeung Kai-Fai Lee Department of Obstetrics and Gynaecology School of Clinical MedicineLKS Faculty of MedicineThe University of Hong KongHong Kong SAR 999077China Department of Animal Science Faculty of Animal Science&Export AgricultureUva Wellassa UniversityBadulla 50000Sri Lanka Department of Animal Science Faculty of AgricultureUniversity of PeradeniyaPeradeniya 20400Sri Lanka Shenzhen Key Laboratory of Fertility regulation.The University of Hong Kong-Shenzhen Hospital Shenzhen 518053China
Endometrial stromal cell decidualization is a crucial step in endometrial remodeling during *** is controlled by orchestrated ovarian hormones,followed by the activation of various downstream signaling *** evidence ha... 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
Quantized autoencoder(QAE)intrusion detection system for anomaly detection in resource-constrained loT devices using rT-loT2022 dataset
收藏 引用
Cybersecurity 2024年 第2期7卷 13-27页
作者: b S Sharmila rohini Nagapadma Depatment of Electronics and Communication Engineering The National Institute of EngineeringMysoreKarnataka 570008India
In recent years,many researchers focused on unsupervised learning for network anomaly detection in edge devices to identify *** deployment of the unsupervised autoencoder model is computationally expensive in resource... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Highly enhanced UV absorption and light emission of monolayer WS_(2)through hybridization with Ti_(2)N MXene quantum dots and g-C_(3)N_(4)quantum dots
收藏 引用
Opto-Electronic Advances 2024年 第6期7卷 31-39页
作者: Anir S.Sharbirin rebekah E.Kong Wendy b.Mato Trang Thu Tran Eunji Lee Jolene W.p.Khor Afrizal L.Fadli Jeongyong Kim Department of Energy Science Sungkyunkwan UniversitySuwon 16419Republic of Korea
Two-dimensional(2D)transition metal dichalcogenides(TMD)are atomically thin semiconductors with promising optoelectronic applications across the visible ***,their intrinsically weak light absorption and the low photol... 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
Ion heat transport in electron cyclotron resonance heated L-mode plasma on the T-10 tokamak
收藏 引用
plasma Science and Technology 2024年 第4期26卷 52-60页
作者: V.A.KrUpIN M.r.NUrGALIEV A.r.NEMETS I.A.ZEMTSOV S.D.SUNTSOV T.b.MYALTON D.S.SErGEEV N.A.SOLOVEV D.V.SArYCHEV D.V.rYJAKOV S.N.TUGArINOV N.N.NAUMENKO National research Centre“Kurchatov Institute” Moscow 123182Russia bauman Moscow State Technical University Moscow 105005Russia Institution“project Center ITEr Moscow 123098Russia JSC“SOLAr Minsk 220034Belarus
Anomalous ion heat transport is analyzed in the T-10 tokamak plasma heated with electron cyclotron resonance heating(ECrH) in second-harmonic extra-ordinary mode. predictive modeling with empirical scaling for Ohmical... 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