咨询与建议

限定检索结果

文献类型

  • 114,526 篇 期刊文献
  • 8,216 册 图书
  • 7,665 篇 会议
  • 108 篇 学位论文
  • 56 篇 报纸

馆藏范围

  • 126,785 篇 电子文献
  • 3,924 种 纸本馆藏

日期分布

学科分类号

  • 48,890 篇 工学
    • 9,873 篇 材料科学与工程(可...
    • 5,614 篇 化学工程与技术
    • 4,276 篇 生物医学工程(可授...
    • 3,891 篇 机械工程
    • 3,345 篇 电子科学与技术(可...
    • 2,529 篇 计算机科学与技术...
    • 2,496 篇 动力工程及工程热...
    • 2,317 篇 地质资源与地质工...
    • 2,045 篇 仪器科学与技术
    • 2,020 篇 电气工程
    • 1,767 篇 水利工程
    • 1,611 篇 环境科学与工程(可...
    • 1,610 篇 光学工程
  • 38,191 篇 医学
    • 30,325 篇 临床医学
    • 4,662 篇 医学技术(可授医学...
    • 3,608 篇 基础医学(可授医学...
    • 2,996 篇 中西医结合
    • 2,644 篇 公共卫生与预防医...
    • 1,849 篇 药学(可授医学、理...
  • 21,273 篇 理学
    • 4,019 篇 物理学
    • 3,867 篇 化学
    • 3,029 篇 生物学
    • 2,880 篇 数学
    • 2,434 篇 地质学
  • 9,890 篇 农学
    • 2,285 篇 畜牧学
    • 2,246 篇 作物学
  • 5,841 篇 管理学
    • 2,418 篇 管理科学与工程(可...
    • 1,805 篇 公共管理
  • 3,941 篇 经济学
    • 3,422 篇 应用经济学
  • 3,376 篇 教育学
    • 2,548 篇 教育学
  • 2,674 篇 文学
  • 2,365 篇 法学
  • 1,140 篇 历史学
  • 990 篇 哲学
  • 984 篇 艺术学
  • 239 篇 军事学

主题

  • 1,066 篇 美国
  • 1,040 篇 ct
  • 806 篇 mri
  • 590 篇 病人
  • 524 篇 患者
  • 493 篇 北美洲
  • 414 篇 of
  • 406 篇 美利坚合众国
  • 389 篇 mr
  • 336 篇 中国
  • 330 篇 治疗
  • 294 篇 应用
  • 290 篇 and
  • 257 篇 诊断
  • 254 篇 cancer
  • 251 篇 设计
  • 228 篇 方程
  • 181 篇 儿童
  • 178 篇 计算机
  • 170 篇 德国

机构

  • 373 篇 北京大学
  • 330 篇 同济医科大学附属...
  • 258 篇 清华大学
  • 213 篇 香港理工大学
  • 211 篇 浙江大学
  • 143 篇 南京大学
  • 114 篇 中国科学院大学
  • 106 篇 香港大学
  • 100 篇 华中科技大学
  • 98 篇 复旦大学
  • 98 篇 中国地质大学
  • 90 篇 germany
  • 90 篇 山东大学
  • 87 篇 中山大学
  • 84 篇 美国加州大学
  • 83 篇 上海交通大学
  • 80 篇 同济大学
  • 78 篇 东南大学
  • 74 篇 university of ch...
  • 74 篇 北京师范大学

作者

  • 240 篇 叶鹏
  • 118 篇 china
  • 115 篇 刘莉
  • 101 篇 郭俊
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 82 篇 m.white
  • 63 篇 朱国栋
  • 56 篇 李长根
  • 53 篇 唐光健
  • 52 篇 王铮
  • 46 篇 马超
  • 41 篇 cristina ng
  • 41 篇 j.zhang
  • 38 篇 t.gries
  • 37 篇 刘凯
  • 36 篇 p.de jong
  • 35 篇 余英豪
  • 34 篇 刘闯

语言

  • 91,677 篇 中文
  • 38,850 篇 英文
  • 1 篇 德文
  • 1 篇 法文
检索条件"作者=h.G.w.ng"
130571 条 记 录,以下是71-80 订阅
排序:
An update on hormonal regulation of early embryo-fallopian tube interactions: insights for improvements of assisted reproductive technology outcomes
收藏 引用
Reproductive and Developmental Medicine 2024年 第1期8卷 39-49页
作者: Suranga P.Kodithuwakku Ernest h.Y.ng william S.B.Yeung Kai-Fai Lee Department of Obstetrics and gynaecology LKS Faculty of MedicineThe University of Hong KongHong Kong SAR 999077China 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
human fallopian tubes(FTs)play important roles in the whole reproductive *** are the site for the final maturation of gametes,fertilization,transport of preimplantation embryos,and early embryonic development before e... 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
Carbon dioxide enrichment affected flower numbers transiently and increased successful post-pollination development stably but without altering final acorn production in mature pedunculate oak (Quercus robur L.)
收藏 引用
Journal of Forestry Research 2024年 第4期35卷 1-12页
作者: Ryan McClory Richard h.Ellis Martin Lukac Jo Clark Carolina Mayoral Kris M.hart Andrew R.g.Plackett A.Rob MacKenzie School of Agriculture Policy and DevelopmentUniversity of ReadingAgricultureEarley GateWhiteknights RoadPO Box 237Reading RG66EUUK Faculty of Forestry and wood Sciences Czech University of Life Sciences PraguePrague 165000Czechia Future Trees Trust Harwell Innovation CentreBuilding 173Curie AvenueHarwellOxford OX110QGUK Birmingham Institute of Forest Research University of BirminghamEdgbastonBirmingham B152TTUK School of Biosciences University of BirminghamEdgbastonBirmingham B152TTUK School of geography Earth and Environmental SciencesUniversity of BirminghamEdgbastonBirmingham B152TTUK
Acorn production in oak(Quercus spp.)shows considerable inter-annual variation,known as masting,which provides a natural defence against seed predators but a highly-variable supply of acorns for uses such as in commer... 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
Pervasive Attentive Neural Network for Intelligent Image Classification Based on N-CDE’s
收藏 引用
Computers, Materials & Continua 2024年 第4期79卷 1137-1156页
作者: Anas w.Abulfaraj Department of Information Systems Faculty of Computing and Information TechnologyKing Abdulaziz UniversityRabigh21911Saudi Arabia
The utilization of visual attention enhances the performance of image classification *** attentionbased models have demonstrated notable performance,but many of these models exhibit reduced accuracy when confronted wi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Current resistance status of Aedes aegypti and Aedes albopictus populations in Penang Island,Malaysia
收藏 引用
Asian Pacific Journal of Tropical Medicine 2024年 第10期17卷 445-455页
作者: Kin hoong ng wan Fatma Zuharah Medical Entomology Laboratory School of Biological SciencesUniversiti Sains MalaysiaMalaysia11900PenangMalaysia
Objective:To determine the current insecticide resistance status of Aedes(Ae.)aegypti and *** to four insecticides,namely 0.05%deltamethrin,0.75%permethrin,5%malathion and 0.25%pirimiphos-methyl using the world health... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
The magnetosheath at high spectral resolution
收藏 引用
Earth and Planetary Physics 2024年 第1期8卷 234-246页
作者: K.D.Küntz D.Koutroumpa w.R.Dunn A.Foster F.S.Porter D.g.Sibeck B.walsh The henry A.Rowland Department of Physics and Astronomy Johns Hopkins University3701 San Martin DriveBaltimoreMD21218USA NASA goddard Space Flight Center 8800 Greenbelt RoadGreenbeltMD 20771USA LATMOS-OVSQ CNRSUVSQ Paris-SaclaySorbonne Université11 Boulevard d’Alembert78280GuyancourtFrance Department of Physics and Astronomy University College LondonLondonUK The Centre for Planetary Science at UCL/Birkbeck Gower StreetLondon WC1E 6BTUK Center for Astrophysics Harvard University&Smithsonian Institution60 Garden StreetCambridgeMA 02138USA Center for Space Physics Boston University110 Cummington MallBostonMAUSA
while we eagerly anticipate SMILE’s(Solar wind Magnetosphere Ionosphere Link Explorer)unprecedented X-ray observations of the Earth’s magnetosheath and the initiation of a new era of magnetospheric research,it seems... 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
Origin and evolution of a new tetraploid mangrove species in an intertidal zone
收藏 引用
Plant Diversity 2024年 第4期46卷 476-490页
作者: hui Feng Achyut Kumar Banerjee wuxia guo Yang Yuan Fuyuan Duan wei Lun ng Xuming Zhao Yuting Liu Chunmei Li Ying Liu Linfeng Li Yelin huang State Key Laboratory of Biocontrol and guangdong Provincial Key Laboratory of Plant Resources School of Life SciencesSun Yat-sen UniversityGuangzhou 510275GuangdongChina Department of Bioengineering Zhuhai Campus of Zunyi Medical UniversityZhuhai 519041GuangdongChina China-ASEAN College of Marine Sciences Xiamen University MalaysiaSepang 43900SelangorMalaysia School of Agriculture Sun Yat-sen UniversityShenzhen 518107GuangdongChina School of Ecology Sun Yat-sen UniversityShenzhen 518107GuangdongChina
Polyploidy is a major factor in the evolution of plants,yet we know little about the origin and evolution of polyploidy in intertidal *** study aimed to identify the evolutionary transitions in three truemangrove spec... 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
Desialylated Platelet Clearance in the Liver is a Novel Mechanism of Systemic Immunosuppression
收藏 引用
Research 2024年 第3期2023卷 35-50页
作者: June Li Danielle Karakas Feng Xue Yingyu Chen guangheng Zhu Yeni h.Yucel Sonya A.MacParland haibo Zhang John w.Semple John Freedman Qizhen Shi heyu Ni Department of Laboratory Medicine and Pathobiology University of TorontoTorontoONCanada Toronto Platelet Immunobiology group TorontoONCanada Keenan Research Centre for Biomedical Science of St.Michael's hospital TorontoONCanada Canadian Blood Services Centre for Innovation TorontoONCanada Departments of Pediatrics Medical College of WisconsinMilwaukeeWIUSA Blood Research Institute Versiti WisconsinMilwaukeeWIUSA Departments of Ophthalmology and Vision Sciences Medicine University of TorontoTorontoONCanada Faculty of Engineering and Architectural Science Ryerson UniversityTorontoONCanada Multi-Organ Transplant Program Toronto General Hospital Research InstituteTorontoONCanada Department of Immunology University of TorontoTorontoONCanada Critical Care Medicine Department ofAnesthesiology and PainUniversity of TorontoTorontoONCanada Department of Physiology University of TorontoTorontoONCanada Department of Pharmacology University of TorontoTorontoONCanada. Division of hematology and Transfusion Medicine Lund UniversityLundSweden clinical Immunology and Transfusion Medicine Ofice of Medical ServicesRegion SkaneLundSweden Department of Medicine University of TorontoTorontoONCanada Children's Research Institute Children's WisconsinWauwatosaWIUSA Midwest Athletes Against Childhood Cancer Fund Research Center MilwaukeeWIUSA.
Platelets are small, versatile blood cells that are critical for hemostasis/thrombosis. Local platelet accumulation is a known contributor to proinflammation in various disease states. however, the anti-inflammatory/i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
holographic dark energy in non-conserved gravity theory
收藏 引用
Communications in Theoretical Physics 2024年 第4期76卷 126-133页
作者: h R Fazlollahi Institute of gravitation and Cosmology Peoples Friendship University of Russia(RUDN University)6 Miklukho-Maklaya StMoscow117198Russia
Recently, reconsidering the Rastall idea T_(μ;νν)^(v)=α_(,μ) through relativistic thermodynamics gives a new form for the scalar field α which led us to construct modern modified theory of gravity debugged ‘non... 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
Construction of 2D/2D Ti_(3)C_(2)T_(x)MXene/CdS heterojunction with photothermal effect for efficient photocatalytic hydrogen production
收藏 引用
Journal of Materials Science & Technology 2024年 第4期171卷 1-9页
作者: T.Y.huang Z.Yang S.Y.Yang Z.h.Dai Y.J.Liu J.h.Liao g.Y.Zhong Z.J.Xie Y.P.Fang S.S.Zhang Key Laboratory for Biobased Materials and Energy of Ministry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China School of Chemical Engineering and Energy Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China
The insensitivity of semiconductors to visible and infrared light is a key constraint on the utilization of light energy in photocatalytic *** photocatalysts with full-spectrum absorption through surface engineering i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Foam rolling and stretching do not provide superior acute flexibility and stiffness improvements compared to any other warm-up intervention: A systematic review with meta-analysis
收藏 引用
Journal of Sport and health Science 2024年 第4期13卷 509-520页
作者: Konstantin warneke gerit Plöschberger Lars h.Lohmann Eric Lichtenstein Daniel Jochum Stanislav D.Siegel Astrid Zech David g.Behm Institute of Sport Science University of KlagenfurtKlagenfurt am Wörthersee 9020Austria Department of human Motion Science and Exercise Physiology Friedrich Schiller UniversityJena 07749Germany Department Sport Exercise and HealthUniversity of BaselBasel 4052Switzerland Department of health Sciences and Technology ETH ZurichZurich 8092Switzerland School of human Kinetics and Recreation Memorial University of NewfoundlandSt.JohnsNL A1C 5S7Canada
Background:Acute improvement in range of motion(ROM)is a widely reported effect of stretching and foam rolling,which is commonly explained by changes in pain threshold and/or musculotendinous ***,these effects were al... 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