咨询与建议

限定检索结果

文献类型

  • 6,062 篇 期刊文献
  • 618 篇 会议
  • 411 册 图书
  • 4 篇 学位论文
  • 2 篇 报纸

馆藏范围

  • 6,899 篇 电子文献
  • 200 种 纸本馆藏

日期分布

学科分类号

  • 2,895 篇 工学
    • 954 篇 材料科学与工程(可...
    • 585 篇 化学工程与技术
    • 409 篇 生物医学工程(可授...
    • 359 篇 机械工程
    • 291 篇 电子科学与技术(可...
    • 279 篇 力学(可授工学、理...
    • 257 篇 动力工程及工程热...
    • 239 篇 电气工程
    • 237 篇 冶金工程
    • 197 篇 核科学与技术
    • 193 篇 计算机科学与技术...
    • 177 篇 环境科学与工程(可...
    • 171 篇 仪器科学与技术
    • 169 篇 地质资源与地质工...
  • 2,747 篇 医学
    • 2,267 篇 临床医学
    • 425 篇 基础医学(可授医学...
    • 358 篇 医学技术(可授医学...
    • 275 篇 公共卫生与预防医...
    • 233 篇 中西医结合
    • 212 篇 药学(可授医学、理...
  • 2,530 篇 理学
    • 870 篇 物理学
    • 826 篇 化学
    • 546 篇 生物学
    • 300 篇 数学
    • 287 篇 天文学
    • 268 篇 地质学
    • 237 篇 地球物理学
  • 724 篇 农学
    • 275 篇 作物学
    • 179 篇 畜牧学
  • 233 篇 管理学
  • 170 篇 经济学
    • 148 篇 应用经济学
  • 122 篇 教育学
  • 76 篇 法学
  • 67 篇 文学
  • 49 篇 哲学
  • 33 篇 历史学
  • 30 篇 艺术学
  • 10 篇 军事学

主题

  • 46 篇 mri
  • 41 篇 患者
  • 34 篇 and
  • 28 篇 ct
  • 27 篇 美国
  • 22 篇 pet
  • 21 篇 病人
  • 19 篇 analysis
  • 19 篇 phylogeny
  • 19 篇 基因突变
  • 18 篇 小麦
  • 17 篇 hepatitis
  • 17 篇 therapy
  • 16 篇 安慰剂对照
  • 16 篇 中国
  • 16 篇 dna
  • 15 篇 前列腺癌
  • 15 篇 high
  • 15 篇 hbc
  • 15 篇 virus

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...
  • 66 篇 national researc...
  • 66 篇 department of ph...
  • 66 篇 kobayashi-maskaw...
  • 66 篇 high energy phys...
  • 66 篇 department of ph...

作者

  • 87 篇 v.i.belousov
  • 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.burkert
  • 85 篇 y.hayato
  • 85 篇 a.v.gritsan
  • 82 篇 a.gurtu
  • 82 篇 m.carena
  • 82 篇 a.masoni
  • 79 篇 s.rolli
  • 79 篇 s.r.klein
  • 78 篇 a.d.martin
  • 78 篇 b.heltsley
  • 77 篇 d.h.weinberg
  • 76 篇 u.f.katz
  • 75 篇 m.titov
  • 73 篇 j.matthews

语言

  • 3,740 篇 英文
  • 3,342 篇 中文
  • 10 篇 其他
检索条件"作者=B. F. Nymi"
7097 条 记 录,以下是41-50 订阅
排序:
A Comprehensive Review on Charging Topologies and Power Electronic Converter Solutions f.r Electric Vehicles
收藏 引用
Journal of.Modern Power Systems and Clean Energy 2024年 第3期12卷 675-694页
作者: Ab.elf.tah Ali Hossam H.H.Mousa Mostaf. f.Shaab.n Maher A.Azzouz Ahmed S.A.Awad the Department of.Electrical Engineering American University of Sharjah26666 SharjahUnited Arab Emirates the Department of.Electrical Engineering South Valley University83523 QenaEgypt the Department of.Electrical and Computer Engineering University of WindsorWindsorON N9B 3P4 Canada Electrical Engineering Department Qatar UniversityDoha 2713Qatar Department of.Electrical and Computer Engineering Sultan Qaboos UniversityMuscat123Oman
Electric vehicles(EVs)are b.coming more popular worldwide due to environmental concerns,f.el security,and price *** perf.rmance of.EVs relies on the energy stored in their b.tteries,which can b. charged using either A... 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
Artif.cial ground f.eezing of.underground mines in cold regions using thermosyphons with air insulation
收藏 引用
International Journal of.Mining Science and Technology 2024年 第5期34卷 643-654页
作者: Ahmad f.Zueter Mohammad Zolf.gharroshan Navid b.hrani Agus P.Sasmito Department of.Civil and Resource Engineering Dalhousie UniversityHalifax B3H4R2Canada Department of.Mining Engineering McGill UniversityMontreal H3A0E8Canada
Current practice of.underground artif.cial ground f.eezing(AGf.typically involves huge ref.igeration systems of.large economic and environmental *** this study,a novel AGf.technique is proposed deploying availab.e col... 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
Modelling of.the elastoplastic b.haviour of.the b.o-cemented soils using an extended Modif.ed Cam Clay model
收藏 引用
Journal of.Rock Mechanics and Geotechnical Engineering 2024年 第6期16卷 2184-2197页
作者: Xuerui Wang Christian b.Silb.rmann Thomas Nagel Udo Nackenhorst Institute of.Mechanics and Computational Mechanics Leibniz UniversitätHannoverAppelstr.9aHannover30167Germany Gesellschaf. f.r Anlagen-und Reaktorsicherheit(GRS)gGmb. Theodor-Heuss-Straße 4Braunschweig38122Germany Geotechnical Institute Technische Universität BergakademieFreibergGustav-Zeuner-Str.1Freiberg09599Germany
An elastoplastic constitutive model b.sed on the Modif.ed Cam Clay(MCC)model is developed to describ. the mechanical b.haviour of.soils cemented via microb.ally induced calcite precipitation(MICP).It considers the inc... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Hyperprolactinemia in Hospitals in Lomé: Diagnostic and Therapeutic Aspects
收藏 引用
Open Journal of.Internal Medicine 2024年 第1期14卷 43-52页
作者: Tchamdja Toyi Djalogue Lihanimpo Kodjo Kossi Ganu Koudjo Kaaga Laconi Yéb. Mossi Komi Edem M’b.rtché b. Kodjo Djib.il Mohaman Awalou b.laka Ab.go Internal Medicine Departement University de Kara Kara Togo Internal Medicine Departement Université of Lomé Lomé Togo
Introduction. Hyperprolactinemia represents a supraphysiological secretion of.prolactin. In clinical practice, it is the most f.equently encountered anterior pituitary disorder. However, its real prevalence is little ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
What diameter?What height?Inf.uence of.measures of.average tree size on area-b.sed allometric volume relationships
收藏 引用
f.rest Ecosystems 2024年 第1期11卷 100-109页
作者: Yilin Wang John A.Kershaw Mark J.Ducey Yuan Sun James b.McCarter Integrated f.rest Mensuration and Systems Analysis Lab.ratory Faculty of Forestry and Environmental ManagementUniversity of New BrunswickFrederictonNBCanada Department of.Natural Resources and the Environment University of New HampshireDurhamNHUSA College of.f.restry Nanjing Forestry UniversityNanjing210037China Scientif.c Programmer RayonierYuleeFLUSA
Volume is an important attrib.te used in many f.rest management *** f.om 83 f.xed-area plots located in central New b.unswick,Canada,are used to examine how dif.erent measures of.stand-level diameter and height inf.ue... 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
There is more to the knee joint than just the quadriceps:A systematic review with meta-analysis and evidence gap map of.hamstring strength,f.exib.lity,and morphology in individuals with gradual-onset knee disorders
收藏 引用
Journal of.Sport and Health Science 2024年 第4期13卷 521-536页
作者: Helder S.Lopes Marina C.Waiteman Liliam b.Priore Neal R.Glaviano David M.b.zett-Jones Ronaldo V.b.iani f.b.o M.Azevedo School of.Science and Technology Physical Therapy DepartmentSao Paulo State University(UNESP)Presidente Prudente 19060-900Brazil Department of.Kinesiology College of AgricultureHealth and Natural ResourcesUniversity of ConnecticutStorrsCT 06269USA School of.Exercise and Rehab.litation Sciences College of Health and Human ServicesUniversity of ToledoToledoOH 43606USA
b.ckground:Impairments in hamstring strength,f.exib.lity,and morphology have b.en associated with altered knee b.omechanics,pain,and *** the presence of.these impairments in individuals with gradual-onset knee disorde... 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
Synchronized of.-harmonic prob. laser with highly variab.e pulse duration f.r laser-plasma interaction experiments
收藏 引用
High Power Laser Science and Engineering 2024年 第1期12卷 99-107页
作者: J.Hornung Y.Zob.s H.Lorenté C.b.ab.tz b.Zielb.uer V.b.gnoud GSI Helmholtzzentrum f.r Schwerionenf.rschung Gmb. DarmstadtGermany Institut d’Optique UniversitéParis-SaclayPalaiseauFrance Institut f.r Angewandte Physik Technische Universität DarmstadtDarmstadtGermany
This paper presents the development and experimental utilization of.a synchronized of.-harmonic laser system designed as a prob. f.r ultra-intense laser±plasma interaction experiments. The system exhib.ts a novel see... 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
Ef.ect of.cinnamaldehyde on Rhizopus stolonif.r and on the conservation of.sweet potato
收藏 引用
f.od Quality and Saf.ty 2024年 第1期8卷 212-225页
作者: 陈晨 薛智超 Penta Pristijono John b.Golding 陈刚 李永新 杨虎清 College of.f.od and Health Zhejiang A&F UniversityHangzhouChina Zhejiang Provincial Key Lab.ratory of.Resources Protection and Innovation of.Traditional Chinese Medicine Zhejiang A&F UniversityHangzhouChina School of.Environmental and Lif. Sciences University of NewcastleOurimbahNSWAustralia NSW Department of.Primary Industries OurimbahNSWAustralia
Ob.ectives:Rhizopus stolonif.r,which causes sof. rot of.sweet potato,has resulted in sub.tantial loss of.economy *** and Methods:The antif.ngal ef.ect and mechanism of.cinnamaldehyde(CIN)against *** were explored b. b...
来源: 维普期刊数据库 维普期刊数据库 评论
Three-dimensional simulation of.long-wavelength f.ee-electron lasers with helical wiggler and ion-channel guiding
收藏 引用
Chinese Physics b 2013年 第7期22卷 183-191页
作者: f. Jaf.ri b.hman b. Maraghechi Department of.Physics Amirkabir University of Technology
A three-dimensional simulation of.a steady-state amplif.er model of.a long-wavelength f.ee-electron laser (f.L) with realizab.e helical wiggler and ion-channel guiding is presented. The set of.coupled nonlinear dif.... 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
One-neutron stripping process in the^(209)b.(^(6)Li,^(5)Li)^(210)b.*reaction reaction
收藏 引用
Nuclear Science and Techniques 2024年 第6期35卷 120-129页
作者: Gao-Long Zhang Zhen-Wei Jiao Guang-Xin Zhang E.N.Cardozo b.Paes Shi-Peng Hu Jian-Qiang Qian Daniele Mengoni Wei-Wei Qu Cong-b. Li Yun Zheng Huan-Qiao Zhang Hui-b.n Sun Nan Wang Chun-Lei Zhang J.J.Valiente-Dob.n D.Testov M.Mazzocco A.Gozzelino C.Parascandolo D.Pierroutsakou M.La Commara A.Goasduf. D.b.zzacco D.R.Napoli f.Galtarossa f.Recchia A.Illana S.b.kes I.Zanon S.Aydin Gde Angelis M.Siciliano R.Menegazzo S.M.Lenzi S.Akkoyun L.f.Canto J.Lub.an School of.Physics Beihang UniversityBeijing 100191China Sino-f.ench Institute of.Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Instituto de f.sica Universidade Federal Fluminense24210-340 NiteróiRio de JaneiroBrazil Lab.ratorio TANDAR Comisión Nacional de Energía AtómicaBKNA1650 San MartíınArgentina Institute f.r Advanced Study in Nuclear Energy and Saf.ty Shenzhen UniversityShenzhen 518060China Shenzhen Key Lab.ratory of.Research and Manuf.cture of.High Purity Germanium Materials and f.tectors Shenzhen UniversityShenzhen 518060China INf. Sezione di PadovaPaduaItaly Dipartimento di f.sica Astronomia dell’Universita di padova PaduaItaly State Key Lab.ratory of.Radiation Medicine and Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China China Institute of.Atomic Energy Beijing 102413China The Key Lab.ratory of.b.am Technology and Material Modif.cation of.Ministry of.Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Lab.ratori Nazionali di Legnaro INFN35020 LegnaroItaly INf. Sezione di Napoli80126 NaplesItaly Dipartimento di f.rmacia Universitàdi Napoli“Federico II”80131 NaplesItaly Department of.Natural and Mathematical Sciences Faculty of EngineeringTarsus University33480 MersinTurkey Physics Division Argonne National LaboratoryLemontILUSA Department of.Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto de f.sica Universidade Federal do Rio de JaneiroRio de Janeiro CP 6852821941-972Brazil
One-neutron stripping process b.tween^(6)Li and^(209)b. was studied at 28,30,and 34 MeV using the in-b.amγ-ray spectroscopy ***γ-γcoincident analysis clearly identif.ed twoγ-rays f.eding the ground and long-li... 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