咨询与建议

限定检索结果

文献类型

  • 5,263 篇 期刊文献
  • 284 篇 会议
  • 56 册 图书
  • 6 篇 学位论文
  • 1 篇 报纸

馆藏范围

  • 5,591 篇 电子文献
  • 19 种 纸本馆藏

日期分布

学科分类号

  • 2,658 篇 工学
    • 950 篇 材料科学与工程(可...
    • 586 篇 化学工程与技术
    • 391 篇 电子科学与技术(可...
    • 338 篇 电气工程
    • 258 篇 机械工程
    • 244 篇 力学(可授工学、理...
    • 241 篇 生物医学工程(可授...
    • 227 篇 动力工程及工程热...
    • 223 篇 环境科学与工程(可...
    • 222 篇 核科学与技术
    • 190 篇 冶金工程
    • 190 篇 地质资源与地质工...
    • 184 篇 计算机科学与技术...
    • 174 篇 仪器科学与技术
    • 137 篇 光学工程
  • 2,451 篇 理学
    • 941 篇 物理学
    • 859 篇 化学
    • 460 篇 生物学
    • 285 篇 地球物理学
    • 275 篇 天文学
    • 257 篇 数学
    • 247 篇 地质学
    • 144 篇 生态学
  • 1,914 篇 医学
    • 1,640 篇 临床医学
    • 233 篇 基础医学(可授医学...
    • 167 篇 医学技术(可授医学...
    • 153 篇 公共卫生与预防医...
    • 146 篇 中西医结合
  • 572 篇 农学
    • 200 篇 作物学
    • 153 篇 畜牧学
  • 111 篇 管理学
  • 100 篇 经济学
  • 75 篇 教育学
  • 57 篇 法学
  • 42 篇 文学
  • 23 篇 历史学
  • 12 篇 艺术学
  • 3 篇 军事学
  • 2 篇 哲学

主题

  • 46 篇 and
  • 32 篇 患者
  • 27 篇 properties
  • 25 篇 analysis
  • 24 篇 acid
  • 23 篇 of
  • 20 篇 phylogeny
  • 20 篇 印度
  • 19 篇 model
  • 19 篇 nanoparticles
  • 19 篇 activity
  • 18 篇 rare earths
  • 17 篇 crystal
  • 17 篇 surface
  • 17 篇 structure
  • 16 篇 magnetic
  • 16 篇 cancer
  • 15 篇 deep learning
  • 15 篇 high
  • 15 篇 hbc

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...
  • 67 篇 ludwig-maximilia...
  • 67 篇 cea/saclay dsm/i...
  • 67 篇 department of ph...
  • 67 篇 department of ph...
  • 67 篇 kobayashi-maskaw...
  • 67 篇 high energy phys...
  • 67 篇 department of ph...
  • 67 篇 sissa/infn via b...

作者

  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 85 篇 v.i.belousov
  • 84 篇 v.burkert
  • 84 篇 y.hayato
  • 84 篇 a.v.gritsan
  • 83 篇 a.gurtu
  • 83 篇 m.carena
  • 83 篇 a.masoni
  • 81 篇 s.rolli
  • 79 篇 a.d.martin
  • 79 篇 b.heltsley
  • 77 篇 s.r.klein
  • 77 篇 d.h.weinberg
  • 76 篇 u.f.katz
  • 75 篇 m.titov
  • 74 篇 j.matthews

语言

  • 3,677 篇 英文
  • 1,933 篇 中文
检索条件"作者=N.v. v.sil.ev."
5610 条 记 录,以下是71-80 订阅
排序:
Failure to Rescue as a Quality Metric in Congenital Heart Surgeries in a High-Complexity Service Provider Institution Located in a Middle-Income Country
收藏 引用
Congenital Heart Disease 2024年 第2期19卷 207-218页
作者: Gustavo Cruz Santiago Pedroza Juan F.vélez Jessica Largo Juan F.Tejada Jorge H.Mejía-Mantilla Departamento de Anestesiología Fundación Valle del LiliCali760032Colombia Centro de Investigaciones Clínicas Fundación Valle del LiliCali760032Colombia Departamento de Cardiología Pediátrica Fundación Valle del LiliCali760032Colombia Facultad de Medicina Universidad IcesiCali760031Colombia Unidad de Cuidado Intensivo Fundación Valle del LiliCali760032Colombia
Background:Failure to rescue has been an effective quality metric in congenital heart ***,mor-bidity and mortality depend greatly on non-modifiable individual factors and have a weak correlation with better-quality **... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Hydroxyapatite composites with carbon allotropes:Preparation,properties,and applications
收藏 引用
Particuology 2024年 第5期88卷 239-265页
作者: Boris I.Kharisov Oxana v.Kharissova Lucy T.González Yolanda Peña Méndez Igor E.Uflyand Idalia Gómez de la Fuente Un.v.rsidad Autónoma de nuevo León Ave.UniversidadCiudad UniversitariaSan Nicolás de los GarzaNuevo León 66455Mexico Tecnologico de Monterrey Escuela de Ingeniería y CienciasMonterreyNuevo Leon 64890Mexico Department of Chemistry Southern Federal UniversityRostov-on-DonRussia
Hydroxyapatite(HA)and its composites with inorganic additives,dopants,and polymers is a rapidly developing branch in the materials *** particular,carbon allotropes are widely used in these composites being widely appl... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Interaction of photons with silver and indium nuclei at energies up to 20 Mev
收藏 引用
Chinese Physics C 2024年 第2期48卷 135-140页
作者: J.H.Khushvaktov M.A.Demichev D.L.Demin S.A.evseev M.I.Gostkin.v.v.Kobets F.A.Rasu-lova S.v.Rozov E.T.Ruziev A.A.Solnyshkin T.n.Tran E.A.Yakushev B.S.Yuldashev Joint Institute for nuclear Research(JInR) DubnaRussia Institute of nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan(InP ASRU) TashkentUzbekistan Institute of Physics of the vietnam Academy of Science and Technology(IP vAST) HanoiVietnam
The yields of photonuclear reactions in the 107Ag,113In,and 115In nuclei were *** Carlo simulations were performed using the Geant4 code,and the results were compared with the experimental *** isomeric ratios of the y... 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 Effectiveness of the Havriliak-negami Model in Predicting the Master Curves of the Asphalt Blends with SBS Triblock Copolymer and Organic-Montmorillonite at Different Temperatures and Frequencies
收藏 引用
Journal of Materials Science and Chemical Engineering 2024年 第7期12卷 23-39页
作者: María Ángeles vargas-Hernández Miguel Ángel vargas Pedro R. García-Morán Humberto vázquez-Torres Divisin de Ingeniera Qumica y Bioqumica TecNMTecnolgico de Estudios Superiores de Ecatepec Edo. de Mxico Mxico Facultad de Qumica Universidad Nacional Autonma de Mxico Cd. de Mxico Mxico Facultad de Ciencias Bsicas Ingeniera y Tecnologa Universidad Autnoma de Tlaxcala Tlaxcala Mxico Departamento de Fsica Universidad Autnoma Metropolitana-Iztapalapa Cd. de Mxico Mxico
The dynamic viscoelastic properties of asphalt AC-20 and its composites with Organic-Montmorillonite clay (OMMt) and SBS were modeled using the empirical Havriliak-negami (Hn) model, based on linear viscoelastic theor... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Wood anatomy chronologies of Scots pine in the foothills of the Western Sayan(Siberia)
收藏 引用
Journal of Forestry Research 2024年 第3期35卷 13-27页
作者: Elena A.Babushkina Dmitry R.Dergun.v.Mikhail S.Zharkov Liliana v.Belokopytova Dina F.Zhirn.v. Bao Yang Jingjing Liu Xiaomei Peng Eugene A.vaganov Khakass Technical Institute Siberian Federal UniversityAbakan 655017Russia Institute of Ecology and Geography Siberian Federal UniversityKrasnoyarsk 660036Russia Mathematical Methods and IT Department Siberian Federal UniversityKrasnoyarsk 660036Russia Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000People's Republic of China School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing 210093People's Republic of China Department of Dendroecology V.N.Sukachev Institute of ForestSiberian Branch of the Russian Academy of ScienceKrasnoyarsk 660036Russia
Recent methodological advances in quantitative wood anatomy have provided new insights into the climatic responses of radial growth at the scale of cell structure of tree rings. This study considered long-term chronol... 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
Isochrone Fitting of Galactic Globular Clusters—Ⅵ.High-latitude Clusters nGC 5024 (M53),nGC 5053,nGC 5272 (M3),nGC 5466,and nGC7099 (M30)
收藏 引用
Research in Astronomy and Astrophysics 2024年 第6期24卷 170-190页
作者: G.A.Gontcharov S.S.Savchenko A.A.Marchuk C.J.Bonatto O.S.Ryutina M.Yu.Khovritchev v.B.Il'in A.v.Mosenkov D.M.Poliakov A.A.Smirnov Central(Pulkovo)Astronomical Observatory Russian Academy of SciencesPulkovskoye chaussee 65/1St.Petersburg 196140Russia Saint Petersburg State Un.v.rsity Universitetskij pr.28St.Petersburg 198504Russia Special Astrophysical Observatory Russian Academy of Sciences369167 Nizhnij ArkhyzRussia Departamento de Astronomia Instituto de FísicaUFRGSAv.Bento Gonçalves9500Porto AlegreRSBrazil Saint Petersburg Un.v.rsity of Aerospace Instrumentation Bol.Morskaya ul.67ASt.Petersburg 190000Russia Department of Physics and Astronomy Brigham Young UniversityN283 ESCProvoUT 84602USA
We fit various color–magnitude diagrams(CMDs) of the high-latitude Galactic globular clusters nGC 5024(M53),nGC 5053,nGC 5272(M3),nGC 5466,and nGC 7099(M30) by isochrones from the Dartmouth Stellar evolution Database... 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
Polyurethane Hybrid-Based Wood Adhesive: Review
收藏 引用
Open Journal of Polymer Chemistry 2024年 第1期14卷 41-62页
作者: Rahul Khandagale Sainath Gadhave Ravindra v. Gadhave Super Bond Adhesives Private Limited Thane India
Based on commercially available polyvinyl alcohol (PvA) stabilised polyvinyl acetate (PvAc), emulsion adhesives are neither heat nor moisture-resistant and show weak strength at high relative humidity and high tempera... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Root Sprouts of Domesticated Phaseolus coccineus L. Overwinter Plants and the Environment at Its Collection Sites
收藏 引用
Open Journal of Ecology 2024年 第5期14卷 508-521页
作者: Ma. Luisa Patricia vargas-vázquez Jorge Alberto Acosta-Gallegos Fabián Islas-Gutiérrez Enrique Buendía-Rodríguez Campo Experimental valle de Mé xico Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Texcoco Mexico Campo Experimental Bají o Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Guanajuato M&#233xico
Buds emerge from the roots of domesticated runner bean plants (Phaseolus coccineus L.) as sprouts and give the crop its persistence. This particularity of the species seems to be associated with the environment where ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Marinoan glaciation in the Indian subcontinent——Anatomy and global implications
收藏 引用
Journal of Palaeogeography 2024年 第2期13卷 293-308页
作者: H.n.Bhattacharya Department of Earth Sciences Techno India UniversityWest BengalSector VSalt LakeKolkata700091India
Detailed sedimentological analysis of the Pokaran Boulder Bed,representing the most basal unit of the neoproterozoic-Lower Cambrian Marwar Supergroup,clearly indicates its glacial *** glacial sediments are interpreted... 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
Pig Reproductive and Respiratory Syndrome virus (PRRSv) Does not Attach to Boar Sperm;It Affects Only the velocity Pattern and the Mobility Pattern
收藏 引用
Journal of Biosciences and Medicines 2024年 第4期12卷 216-228页
作者: néstor Méndez Palacios netzi naidí Mendez Palacios Felicitas vázquez Flores José Alfredo Galicia Domínguez Edgar Guadalupe Beltrán Rosas Maximino Méndez Mendoza Facultad de Medicina veterinaria and Zootecnia-Benemé rita Universidad Aut&#243noma de Puebla Puebla Mexico Independent Advisor in the Porcine Area Puebla Mexico
The purpose of the study was to evaluate the sperm viability of semen infected with PRRSv viral particles, observing the effect of the virus on the motility of boar sperm. The work was carried out at the FMvZ-BUAP Gen... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论