咨询与建议

限定检索结果

文献类型

  • 4,519 篇 期刊文献
  • 225 篇 会议
  • 45 册 图书
  • 3 篇 学位论文

馆藏范围

  • 4,786 篇 电子文献
  • 12 种 纸本馆藏

日期分布

学科分类号

  • 2,192 篇 工学
    • 775 篇 材料科学与工程(可...
    • 458 篇 化学工程与技术
    • 297 篇 生物医学工程(可授...
    • 283 篇 电子科学与技术(可...
    • 271 篇 环境科学与工程(可...
    • 242 篇 电气工程
    • 229 篇 核科学与技术
    • 218 篇 力学(可授工学、理...
    • 198 篇 动力工程及工程热...
    • 194 篇 机械工程
    • 155 篇 冶金工程
    • 150 篇 计算机科学与技术...
    • 148 篇 地质资源与地质工...
    • 138 篇 仪器科学与技术
  • 2,123 篇 理学
    • 756 篇 物理学
    • 733 篇 化学
    • 516 篇 生物学
    • 343 篇 天文学
    • 228 篇 地球物理学
    • 218 篇 数学
    • 207 篇 生态学
    • 187 篇 地质学
  • 2,029 篇 医学
    • 1,694 篇 临床医学
    • 290 篇 基础医学(可授医学...
    • 244 篇 公共卫生与预防医...
    • 204 篇 医学技术(可授医学...
    • 152 篇 药学(可授医学、理...
  • 582 篇 农学
    • 272 篇 作物学
    • 148 篇 畜牧学
    • 131 篇 农业资源与环境
  • 132 篇 管理学
  • 65 篇 经济学
  • 63 篇 教育学
  • 31 篇 法学
  • 23 篇 文学
  • 12 篇 哲学
  • 12 篇 艺术学
  • 11 篇 历史学
  • 1 篇 军事学

主题

  • 37 篇 mri
  • 31 篇 and
  • 27 篇 phylogeny
  • 26 篇 患者
  • 25 篇 ct
  • 24 篇 病人
  • 21 篇 cancer
  • 19 篇 corrosion
  • 18 篇 analysis
  • 18 篇 ascomycota
  • 16 篇 hbc
  • 16 篇 liver
  • 15 篇 quality
  • 15 篇 covid-19
  • 14 篇 acid
  • 14 篇 diabetes
  • 14 篇 安慰剂对照
  • 14 篇 properties
  • 14 篇 soil
  • 14 篇 rare earths

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 department of ph...
  • 67 篇 school of physic...
  • 67 篇 ludwig-maximilia...
  • 67 篇 cea/saclay dsm/i...
  • 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
  • 85 篇 v.burkert
  • 84 篇 y.hayato
  • 84 篇 a.v.gritsan
  • 82 篇 a.gurtu
  • 82 篇 m.carena
  • 82 篇 a.masoni
  • 80 篇 s.rolli
  • 77 篇 a.d.martin
  • 77 篇 b.heltsley
  • 77 篇 s.r.klein
  • 77 篇 d.h.weinberg
  • 77 篇 u.f.katz
  • 77 篇 m.titov
  • 73 篇 j.matthews

语言

  • 2,912 篇 英文
  • 1,880 篇 中文
检索条件"作者=m.chael B. Richm.n"
4792 条 记 录,以下是61-70 订阅
排序:
Plasma electrolytic formation and characterization of mnWO_(4)/WO_(3) film heterostructures
ChemPhysMater
收藏 引用
ChemPhysmater 2024年 第3期3卷 293-302页
作者: m.S.Vasilyeva I.V.Lukiyanchuk Yu.b.b.dnikova V.G.Kuryavyi D.H.Shlyk G.A.Zverev Department of Chemistry and materials of Institute of High Technology and Advanced materials Far Eastern Federal UniversityFEFU CampusVladivostok 690922Russia Institute of Chemistry Far Eastern BranchRussian Academy of SciencesVladivostok 690022Russia
mnWO_(4)/WO_(3) p-n heterojunction films were fab.icated using a one-step method consisting of the plasma electrolytic oxidation(PEO)of titanium in homogeneous electrolytes containing paratungstate ions and stab.e wat... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Acceptance of COVID-19 vaccine and its related determinants in nigeria:An online survey
收藏 引用
World Journal of Virology 2024年 第4期13卷 89-110页
作者: Eyiuche D Ezigb. Seyi S Enitan Esther n Adejumo Ab.odun E Durosinmi Richard Y Akele m.chael O Dada Grace E Itodo Ab.h m Idoko Okeoghene m Edafetanure-Ib.h Edwin n Okafor Adedeji A Ab.ulsalam Oyekan I Oyedoyin Polit U Yelpoji Ogunwola O Opeyemi Ogb.ji S nmesomachi Adesola O Oyekale Chisom b.Onyeji Haemostasis and Thromb.sis Unit Department of Medical Laboratory SciencesUniversity of NigeriaEnugu CampusEnuguEN 400241Nigeria Department of medical Lab.ratory Science School of Public and Allied HealthBabcock UniversityIlishan-RemoOG 121109Nigeria Department of medical Lab.ratory Science State HospitalIjebu-OdeOG 120221Nigeria Department of b.omedical Science School of Applied ScienceUniversity of BrightonBrightonES BN24ATUnited Kingdom Department of microb.ology Federal Teaching Hospital LokojaLokojaKO 260006Nigeria Department of Hematology and b.ood Group Serology Federal College of Veterinary and Medical Laboratory TechnologyVomPL 930101Nigeria Department of Environmental and Occupational Health Texas A and M University School of Public HealthGarlandTX 75049United States Division of Chemical Pathology Department of Medical Laboratory SciencesUniversity of NigeriaEnugu CampusEnuguEN 400102Nigeria School of molecular b.oscience Sciences College of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowSCO G128QQUnited Kingdom Department of medical Lab.ratory Science State Hospital Ijebu-OdeIjebu-OdeOG 360101Nigeria Department of medical Lab.ratory Science Faculty of Health Sciences and TechnologyUniversity of JosJosPL 930103Nigeria Department of medical Lab.ratory Science Bola Tinubu Health and Diagnostic CenterLagosLA 100102Nigeria Department of Pathology 68 Nigerian Army Reference HospitalYabaLA 1211001Nigeria Department of medical Lab.ratory Science Ladoke Akintola University of TechnologyOgbomosoOS 2111105Nigeria
b.CKGROUnD Vaccine hesitancy is a major challenge in the fight against the coronavirus disease 2019(COVID-19)*** the sociodemographic factors associated with vaccine acceptance among nigerians is crucial for improving... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Structural, elastic and electronic properties for m_2 XC (m=Ti and Cr, X=Ga and Al) phases from ab.initio calculations
收藏 引用
Acta metallurgica Sinica(English Letters) 2011年 第4期24卷 255-270页
作者: b. Gheb.uli m.A. Gheb.uli m. Fatmi n. b.uarissa m. b.nkerri I.A. Ib.ahim Lab.ratory of Study of Surfaces and Interfaces of Solids materials Department of Physics Faculty of Science University of Setif Department of Physics University Center Research Unit on Emerging materials Ferhat Abbas University of Setif Department of Physics Faculty of Sciences King Khalid University Central metallurgical Research and Development Institute P.O. b.x: 87 Helwan 11424 Cairo Egypt
The first-principles study of the structural, elastic and electronic properties of the m2XC phases depending on the type of m transition metal (m are Ti and Cr) and on X (X are Ga and A1) was reported. The calcula... 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
massive Dirac particles b.sed on gapped graphene with Rosen-morse potential in a uniform magnetic field
收藏 引用
Chinese Physics b 2024年 第8期33卷 170-178页
作者: A.Kalani Alireza Amani m.A.Ramzanpour Department of Physics Ayatollah Amoli BranchIslamic Azad UniversityAmolIran
We explore the gapped graphene structure in the two-dimensional plane in the presence of the Rosen-morse potential and an external uniform magnetic *** order to describ. the corresponding structure,we consider the pro... 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 hydrochemical and Dye-tracing Investigation in the Posht-e-naz Karstic Aquifer,Alb.rz mountain,northern Iran
收藏 引用
Journal of mountain Science 2011年 第1期8卷 37-45页
作者: Kalantari n. Alizadeh b. mohammadi A.R. Keshavarzi.m.R. Geology Department Shahid Chamran University WaterResource Organization
A hydrochemical and tracer study (uranine injection) was conducted in Jurassic limestone of the Posht-e-naz area in the Alb.rz b.lt to evaluate hydraulic relations b.tween a large diameter (ab.ut 100m) sinkhole 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
A novel diagnostic gene region for distinguishing b.tween two pest fruit flies:b.ctrocera tryoni(Froggatt)and b.ctrocera neohumeralis(Hardy)(Diptera:Tephritidae)
收藏 引用
Insect Science 2024年 第4期31卷 1285-1295页
作者: melissa L.Starkie Elizab.th V.Fowler Alexander m.Piper Xiaocheng Zhu Pauline Wyatt David Gopurenko matt n.Krosch Francesca Strutt Karen F.Armstrong Hamish Patrick mark K.Schutze mark J.b.acket Department of Agriculture and Fisheries BiosecurityBrisbaneQueenslandAustralia Agriculture Victoria AgriBioBundooraVictoriaAustralia Department of Primary Industries Wagga Wagga Agricultural InstituteWagga WaggaNew South WalesAustralia Forensic Services Group Queensland Police ServiceBrisbaneQueenslandAustralia Department of Pest-management and Conservation Lincoln UniversityLincolnNew Zealand b.tter b.rder b.osecurity(b. B3nz.org.nz)LincolnNew Zealand
b.ctrocera tryoni and b.ctrocera neohumeralis are morphologically similar sib.ing pest fruit fly species that possess different b.ological attrib.tes,geographic distrib.tions,and host *** need to differentiate b.tween... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Pelleting and particle size reduction of corn increase net energy and digestib.lity of fib.r,protein,and fat in corn-soyb.an meal diets fed to group-housed pigs
收藏 引用
Journal of Animal Science and b.otechnology 2024年 第4期15卷 1751-1760页
作者: Su A Lee Diego A.Rodriguez Chad b.Paulk Hans H.Stein Department of Animal Sciences University of IllinoisUrbanaIL 61801USA Department of Grain Sciences and Industry Kansas State UniversityManhattanKS 66506USA
b.ckground Reduction of the particle size of corn increases energy digestib.lity and concentrations of digestib.e and metab.lizab.e *** may also reduce particle size of grain,b.t it is not known if there are interacti... 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 role of n-glycosylation in cancer
收藏 引用
Acta Pharmaceutica Sinica b 2024年 第3期14卷 1098-1110页
作者: Yu Lin David m.Lub.an Department of Surgery University of Michigan Medical CenterAnn ArborMI 48109USA
Despite advances in understanding the development and progression of cancer in recent years,there remains a lack of comprehensive characterization of the cancer *** play an important role in medicine and are involved ... 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
Potential cotton aphid, Aphis gossypii, population suppression b. arthropod predators in upland cotton
收藏 引用
Insect Science 2013年 第6期20卷 778-788页
作者: Ram b. Shrestha megha n. Parajulee Texas A&m University AgriLife Research and Extension Center 1102 E. FM 1294 Lubbock TX 79403 United States
The cotton aphid, Aphis gossypii Glover, predation rate of convergent lady b.etle, Hippodamia convergens Guerin-meneville, was determined b. assigning a single predator randomly to each of four prey density treatments... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Isochrone Fitting of Galactic Glob.lar 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.b.natto O.S.Ryutina m.Yu.Khovritchev V.b.Il'in A.V.mosenkov D.m.Poliakov A.A.Smirnov Central(Pulkovo)Astronomical Ob.ervatory Russian Academy of SciencesPulkovskoye chaussee 65/1St.Petersburg 196140Russia Saint Petersb.rg State University Universitetskij pr.28St.Petersburg 198504Russia Special Astrophysical Ob.ervatory Russian Academy of Sciences369167 Nizhnij ArkhyzRussia Departamento de Astronomia Instituto de FísicaUFRGSAv.Bento Gonçalves9500Porto AlegreRSBrazil Saint Petersb.rg University 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 glob.lar clusters nGC 5024(m53),nGC 5053,nGC 5272(m3),nGC 5466,and nGC 7099(m30) b. isochrones from the Dartmouth Stellar Evolution Datab.se... 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