咨询与建议

限定检索结果

文献类型

  • 70,986 篇 期刊文献
  • 1,535 篇 会议
  • 358 册 图书
  • 9 篇 学位论文
  • 2 篇 报纸

馆藏范围

  • 72,794 篇 电子文献
  • 106 种 纸本馆藏

日期分布

学科分类号

  • 33,862 篇 医学
    • 24,503 篇 临床医学
    • 3,920 篇 医学技术(可授医学...
    • 3,291 篇 中西医结合
    • 3,003 篇 基础医学(可授医学...
    • 2,263 篇 公共卫生与预防医...
    • 2,052 篇 药学(可授医学、理...
    • 1,524 篇 中药学(可授医学、...
  • 26,438 篇 工学
    • 4,734 篇 材料科学与工程(可...
    • 3,320 篇 生物医学工程(可授...
    • 3,029 篇 化学工程与技术
    • 2,132 篇 机械工程
    • 1,338 篇 计算机科学与技术...
    • 1,220 篇 电气工程
    • 1,202 篇 动力工程及工程热...
    • 1,181 篇 电子科学与技术(可...
    • 1,136 篇 生物工程
    • 1,064 篇 环境科学与工程(可...
    • 1,033 篇 仪器科学与技术
    • 975 篇 土木工程
  • 10,600 篇 理学
    • 2,369 篇 生物学
    • 1,743 篇 化学
    • 1,547 篇 物理学
    • 1,173 篇 地质学
    • 1,168 篇 数学
    • 1,111 篇 生态学
  • 8,230 篇 农学
    • 2,292 篇 作物学
    • 1,585 篇 农业资源与环境
    • 1,201 篇 畜牧学
    • 1,008 篇 兽医学
  • 2,594 篇 管理学
    • 1,199 篇 管理科学与工程(可...
  • 1,386 篇 教育学
  • 1,057 篇 经济学
  • 498 篇 法学
  • 443 篇 文学
  • 218 篇 历史学
  • 197 篇 艺术学
  • 145 篇 哲学
  • 76 篇 军事学

主题

  • 1,111 篇 磁共振成像
  • 647 篇 预后
  • 576 篇 2型糖尿病
  • 464 篇 儿童
  • 344 篇 产量
  • 285 篇 mri
  • 273 篇 大鼠
  • 224 篇 诊断
  • 217 篇 糖尿病
  • 212 篇 影响因素
  • 210 篇 危险因素
  • 190 篇 凋亡
  • 183 篇 小鼠
  • 172 篇 ct
  • 169 篇 数值模拟
  • 165 篇 力学性能
  • 148 篇 基因
  • 146 篇 患者
  • 142 篇 乳腺癌
  • 136 篇 细胞凋亡

机构

  • 315 篇 解放军总医院
  • 311 篇 中国科学院大学
  • 253 篇 北京大学
  • 229 篇 兰州大学
  • 221 篇 郑州大学第一附属...
  • 211 篇 北京中医药大学
  • 196 篇 上海交通大学
  • 195 篇 中国地质大学
  • 191 篇 新疆医科大学
  • 191 篇 西北农林科技大学
  • 177 篇 宁夏医科大学
  • 174 篇 甘肃农业大学
  • 171 篇 山东大学
  • 166 篇 福建师范大学
  • 166 篇 吉林大学
  • 163 篇 西安交通大学
  • 160 篇 首都医科大学附属...
  • 159 篇 上海理工大学
  • 159 篇 清华大学
  • 151 篇 新疆医科大学第一...

作者

  • 298 篇 马静
  • 283 篇 马超
  • 230 篇 马宁
  • 217 篇 马丽
  • 198 篇 马军
  • 179 篇 马林
  • 167 篇 马强
  • 155 篇 马骏
  • 152 篇 马玲
  • 139 篇 马涛
  • 128 篇 马莉
  • 101 篇 马琳
  • 98 篇 马萍
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 马勇
  • 81 篇 m.white
  • 81 篇 马力
  • 75 篇 马良

语言

  • 63,703 篇 中文
  • 9,186 篇 英文
  • 1 篇 法文
检索条件"作者=a.a.ma.i t.j."
72890 条 记 录,以下是1-10 订阅
排序:
Deploying Hybrid Ensemblemachine Learning techniques for Effective Cross-Site Scripting (XSS) Attack Detection
收藏 引用
Computers, materials and Continua 2024年 第1期81卷 707-748页
作者: Bacha N.U. Lu S. Ur Rehman A. idrees M. Ghadi Y.Y. a.a.ma.i t.j. School of Cyber Science and Engineering Huazhong University of Science and Technology Wuhan 430073 China Department of Computer Science and Engineering University of Engineering and Technology Lahore 54000 Pakistan Department of Computer Science and Software Engineering Al Ain University Al Ain Abu Abu Dhabi 12555 United Arab Emirates Department of information Systems College of Computer and Information Sciences Princess Nourah bint Abdulrahman University Riyadh 84428 Saudi Arabia
Cross-Site Scripting (XSS) remains a significant threat to web application security, exploiting vulnerabilities to hijack user sessions and steal sensitive data. traditional detection methods often fail to keep pace w... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Generalized time-dependent generator coordinate method for induced fission dynamics
收藏 引用
Frontiers of physics 2024年 第4期19卷 1-12页
作者: B.Li D.Vretenar t.Niić j.Zhao P.W.Zhao j.Meng State Key Laboratory of Nuclear Physics and technology School of PhysicsPeking UniversityBeijing 100871China Physics Department Faculty of ScienceUniversity of Zagreb10000 ZagrebCroatia Center for Circuits and Systems Peng Cheng LaboratoryShenzhen 518055China
the generalized time-dependent generator coordinate method(tD-GCM)is extended to include pairing *** correlated GCM nuclear wave function is expressed in terms of time-dependent generator states and weight *** particl... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Photoluminescence and ratiometric thermo-response of Eu^(2+)and Eu^(3+)in BaAl_(2)B_(2)O_(7):Eu^(2+),Eu^(3+)phosphor materials
收藏 引用
journal of Rare Earths 2024年 第7期42卷 1240-1249,I0002页
作者: Ziyao Wang Haitao Fu Xiufeng Zhan Bo tong Guofeng ma H.t.(Bert)Hintzen institute of innovative Science and technology Shenyang UniversityShenyang110044China College of Mechanical Engineering Shenyang UniversityShenyang110044China Faculty of Applied Sciences Delft University of Technology2629 JBDelftthe Netherlands
A novel Eu^(2+)-Eu^(3+)co-activated ratiometric thermo-sensitive phosphor was developed and synthesized by solid-state *** valence state of Eu,photoluminescence and thermo-sensitive performance of the phosphor prepare... 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
Universal insertion of molecules in ionic compounds under pressure
收藏 引用
National Science Review 2024年 第1期11卷 120-128页
作者: Feng Peng Yanming ma Chris j.Pickard Hanyu Liu maosheng Miao College of Physics and Electronic information Luoyang Normal University Department of Chemistry and Biochemistry California State University Northridge State Key Laboratory of Superhard materials & Key Laboratory of material Simulation Methods and Software of Ministry of Education College of Physics Jilin University international Center of Future Science Jilin University Department of materials Science & Metallurgy University of Cambridge Advanced institute for materials Research Tohoku University Department of Earth Science University of California Santa Barbara
Using first-principles calculations and crystal structure search methods, we found that many covalently bonded molecules such as H2, N2, CO2, NH3, H2O and CH4may react with NaC l, a prototype ionic solid,and form stab... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Demand-Responsive transportation Vehicle Routing Optimization Based on two-Stage Method
收藏 引用
Computers, materials and Continua 2024年 第1期81卷 443-469页
作者: ma j. Liu H. Chen L. School of Railway transportation Shanghai Institute of Technology Shanghai 201418 China
Demand-responsive transportation (DRt) is a flexible passenger service designed to enhance road efficiency, reduce peak-hour traffic, and boost passenger satisfaction. However, existing optimization methods for initia... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
in situ characterization of particle formation in spray flame synthesis using wide-angle light scattering
收藏 引用
Particuology 2024年 第3期86卷 304-312页
作者: Simon Aβmann Franz j.t.Huber Stefan Will Lehrstuhl für technische thermodynamik(Ltt) Friedrich-Alexander-Universitat Erlangen-Nürnberg(FAU)Erlangen91058Germany Erlangen Graduate Schoolin Advanced Optical technologies(SAOt) Friedrich-Alexander-Universitat Erlangen-Nurnberg(FAU)Erlangen91052Germany Competence Unit Engineering of Advanced materials(EAM) Friedrich-Alexander-Universitat Erlangen-Nürnberg(FAU)Erlangen91052Germany
Wide-angle light scattering(WALS)was used for in situ measurements of droplet and nanoparticle size distributions during the synthesis of titania and iron oxide particles from liquid precursor solutions in the standar... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Potential Secretory transporters and Biosynthetic Precursors of Biological Nitrification inhibitor 1,9-Decanediol in Rice as Revealed by transcriptome and Metabolome Analyses
收藏 引用
Rice science 2024年 第1期31卷 87-102页
作者: Di Dongwei ma Mingkun ZHANG Xiaoyang LU Yufang Herbert.j.KRONZUCKER SHi Weiming State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China School of Food Science and Engineering Foshan UniversityFoshan 528000China School of BioSciences The University of MelbourneParkvilleVIC 3010Australia University of Chinese Academy of Sciences Beijing 100049China
Biological nitrification inhibitors(BNis)are released from plant roots and inhibit the nitrification activity of microorganisms in soils,reducing NO_(3)^(‒)leaching and N2O emissions,and increasing nitrogenuse efficie... 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
Supported Recyclable Metal-free Frustrated Lewis Pair Catalyst for Catalytic Hydrogenation of Substituted Pyridines to Piperidines
收藏 引用
Chemical Research in Chinese Universities 2024年 第4期40卷 682-689页
作者: ma Shaohua tANG Zhiyong CAS Key Laboratory for Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P.R.China University of Chinese Academy of Sciences Beijing100049P.R.China
the construction of heterogeneous frustrated Lewis pairs(FLPs)catalysts is crucial for realizing highly efficient and recyclable pyridines catalytic *** this work,we prepared a recyclable heterogenous FLPs catalyst CM... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
individual consistency in spatiotemporal characteristics of migratory Whimbrels in the East Asian-Australasian Flyway
收藏 引用
Avian Research 2024年 第3期15卷 308-315页
作者: Siwei An Fenliang Kuang Wei Wu Chris j.Hassell jonathan t.Coleman Zijing Gao Xuena Sun Yue Yuan Grace maglio Kar-Sin K.Leung Xuesong Feng Zhijun ma Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering Coastal Ecosystems Research Station of the Yangtze River EstuaryInstitute of Biodiversity ScienceSchool of Life SciencesFudan UniversityShanghai200433China School of Chemistry and Environment Yunnan Minzu UniversityKunming650504China Shanghai Chongming Dongtan Nature Reserve Administration Center ChongmingShanghai202183China Global Flyway Network PO Box 3089BroomeWA 6725Australia Australasian Wader Studies Group BroomeWA6725Australia Queensland Wader Study Group Shailer ParkQLD4128Australia Hong Kong Waterbirds Ringing Group Hong Kong999077China
many migratory birds exhibit interannual consistency in migration schedules,routes and stopover *** the interannual consistency in spatiotemporal characteristics helps understand the maintenance of migration and enabl... 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
Reply to the note by Li Piani et al.
收藏 引用
Defence technology(防务技术) 2024年 第1期31卷 603-606页
作者: t.Li Piani j.Weerheijm L.j.Sluys tU Delft Stevinweg 12628 CNDelftthe Netherlands tNO PO Box 452280 AARijswijkthe Netherlands NLDA Faculty of Military Sciences1781 CADen Helderthe Netherlands
in 2017,a ballistic phenomenological model was proposed by the authors of Ref.[1] to numerically simulate the experimental depths of small caliber projectiles impacting walls made of *** opportunity for a new model in... 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