咨询与建议

限定检索结果

文献类型

  • 318,929 篇 期刊文献
  • 27,786 篇 会议
  • 15 册 图书

馆藏范围

  • 346,730 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 173,860 篇 工学
    • 43,563 篇 材料科学与工程(可...
    • 35,009 篇 化学工程与技术
    • 17,494 篇 电子科学与技术(可...
    • 13,453 篇 机械工程
    • 11,348 篇 计算机科学与技术...
    • 10,714 篇 仪器科学与技术
    • 9,659 篇 光学工程
    • 9,032 篇 控制科学与工程
    • 8,812 篇 电气工程
    • 7,660 篇 地质资源与地质工...
    • 7,066 篇 软件工程
    • 7,010 篇 环境科学与工程(可...
    • 6,723 篇 动力工程及工程热...
    • 6,588 篇 力学(可授工学、理...
    • 5,407 篇 水利工程
  • 123,782 篇 理学
    • 25,988 篇 化学
    • 25,725 篇 物理学
    • 17,927 篇 生物学
    • 15,175 篇 数学
    • 9,952 篇 大气科学
    • 8,864 篇 地质学
    • 5,959 篇 生态学
  • 71,839 篇 医学
    • 48,990 篇 临床医学
    • 6,777 篇 中西医结合
    • 6,302 篇 药学(可授医学、理...
    • 5,879 篇 基础医学(可授医学...
  • 34,463 篇 农学
    • 11,587 篇 作物学
    • 7,684 篇 农业资源与环境
  • 12,694 篇 管理学
    • 7,542 篇 管理科学与工程(可...
  • 7,966 篇 经济学
    • 6,875 篇 应用经济学
  • 3,552 篇 法学
  • 2,647 篇 文学
  • 2,074 篇 教育学
  • 1,108 篇 艺术学
  • 825 篇 军事学
  • 758 篇 历史学
  • 399 篇 哲学

主题

  • 3,165 篇 of
  • 2,664 篇 china
  • 2,366 篇 and
  • 1,909 篇 microstructure
  • 1,689 篇 cancer
  • 1,613 篇 model
  • 1,477 篇 in
  • 1,456 篇 analysis
  • 1,402 篇 rare earths
  • 1,237 篇 system
  • 1,209 篇 structure
  • 1,157 篇 simulation
  • 1,118 篇 numerical simula...
  • 1,091 篇 stability
  • 1,076 篇 mechanical prope...
  • 1,040 篇 temperature
  • 1,030 篇 rice
  • 984 篇 apoptosis
  • 879 篇 crystal structur...
  • 862 篇 中国

机构

  • 7,211 篇 university of ch...
  • 3,248 篇 university of ch...
  • 1,697 篇 academia sinica
  • 843 篇 beijing
  • 831 篇 graduate univers...
  • 779 篇 graduate univers...
  • 646 篇 china
  • 644 篇 center of materi...
  • 464 篇 beijing national...
  • 429 篇 institute of hig...
  • 402 篇 institute of mod...
  • 375 篇 songshan lake ma...
  • 348 篇 institute of hig...
  • 320 篇 school of materi...
  • 320 篇 shenyang nationa...
  • 310 篇 state key labora...
  • 309 篇 institute of met...
  • 300 篇 shanghai institu...
  • 294 篇 institute of geo...
  • 271 篇 institute of geo...

作者

  • 762 篇 wei wang
  • 611 篇 wei zhang
  • 583 篇 wei li
  • 503 篇 jing wang
  • 479 篇 lei zhang
  • 449 篇 wei liu
  • 446 篇 yang liu
  • 420 篇 yu zhang
  • 387 篇 xin li
  • 378 篇 lei wang
  • 377 篇 li li
  • 347 篇 li zhang
  • 338 篇 jun wang
  • 336 篇 hui wang
  • 330 篇 yi zhang
  • 321 篇 jing zhang
  • 291 篇 jian wang
  • 287 篇 yan li
  • 277 篇 wei huang
  • 274 篇 yang yang

语言

  • 302,982 篇 英文
  • 43,744 篇 中文
  • 3 篇 日文
  • 1 篇 法文
检索条件"机构=2. Institute of Acoustics"
346730 条 记 录,以下是4901-4910 订阅
排序:
Association of miR-499 rs3746444, miR-149 rs2.92.32.polymorphisms and their expression levels with helicobacter pylori-related gastric diseases and Traditional Chinese Medicine syndromes
收藏 引用
Journal of Traditional Chinese Medicine 2024年 第5期44卷 1024-1034页
作者: LIU Qi YU Chang YE Jintong ZHANG Ling LI Danyan DAI Yunkai ZHANG Yunzhan LUO Qi CHEN Weijing PAN Huaigeng LI Ruliu HU Ling institute of Gastroenterology Science and Technology Innovation CenterGuangzhou University of Chinese Medicine First Affiliated Hospital of Guangzhou University of Chinese Medicine
OBJECTIVE: To provide an objective experimental basis for the gastric mucosa pathological evolution and the transformation of different Traditional Chinese Medicine(TCM) syndromes in helicobacter pylori(H. pylori)-rel... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Opportunities for production and property research of neutron-rich nuclei around N=12. at HIAF
收藏 引用
Nuclear Science and Techniques 2024年 第6期35卷 101-113页
作者: Shao-Bo Ma Li-Na Sheng Xue-Heng Zhang Shi-Tao Wang Kai-Long Wang Chun-Wang Ma Hool-Jin Ong Zhi-Yu Sun Shu-Wen Tang Yu-Hong Yu Xin-Tong Du Xiao-Bao Wei institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China University of Chinese Academy of Sciences Beijing 100049China College of Physics Henan Normal UniversityXinxiang 453007China institute of Nuclear Science and Technology Henan Academy of ScienceZhengzhou 450046China Joint-Department for Nuclear Physics Lanzhou University and Institute of Modern PhysicsLanzhou 730000China Research Center for Nuclear Physics Osaka UniversityOsaka 567-0047Japan RIKEN Nishina Center Saitama 351-0198Japan Northwest Normal University Lanzhou 730070China
The study of nuclide production and its properties in the N=12. neutron-rich region is prevalent in nuclear physics and astrophysics *** upcoming High-energy FRagment Separator(HFRS)at the High-Intensity heavy-ion Acc... 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
Research and application of key technologies for data delivery in railway engineering design based on metadata
收藏 引用
High-Speed Railway 2024年 第1期2卷 51-56页
作者: Xiangru Lyu Xunxiao Yin Kun Wang Yongwen Wei institute of Computing Technologies China Academy of Railway Sciences Corporation LimitedBeijing 100081China
In view of the problems of inconsistent data semantics,inconsistent data formats,and difficult data quality assurance between the railway engineering design phase and the construction and operation phase,as well as th... 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
Effect of zeolites on the alkylation of aromatics with alkanes using a Pd nanoparticle/solid acid cooperative catalytic system
收藏 引用
Green Carbon 2024年 第3期2卷 282-290页
作者: Satoshi Misaki Moe Takabatake Shingo Hasegawa Yuichi Manaka Wang-Jae Chun Ken Motokura Department of Chemical Science and Engineering School of Materials and Chemical TechnologyTokyo Institute of Technology4259 Nagatsuta-choMidori-kuYokohama 226-8502Japan Department of Chemistry and Life Science Yokohama National University79-5 TokiwadaiHodogaya-kuYokohama 240-8501Japan Renewable Energy Research Center National Institute of Advanced Industrial Science and Technology(AIST)2-2-9 MachiikedaiKoriyama 963-0298Japan Graduate School of Arts and Sciences International Christian UniversityMitakaTokyo 181-8585Japan
The direct alkylation of benzene with alkanes is an effective method for alkylbenzene *** group previously discovered that a mixture of supported Pd nanoparticles and solid acids effectively promoted the alkylation of... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Geochemical characteristics and exploration significance of ultra-deep Sinian oil and gas from Well Tashen 5,Tarim Basin,NW China
收藏 引用
Energy Geoscience 2024年 第1期5卷 24-36页
作者: Zicheng Cao Anlai Ma Qinqi Xu Quanyong Pan Kai Shang Fan Feng Yongli Liu Northwest Petroleum Oilfield Company SINOPECUrumqi830011China Petroleum Exploration and Production Research institute SINOPEC102260BeijingChina
The Well Tashen 5(TS5),drilled and completed at a vertical depth of 9017 m in the Tabei Uplift of the Tarim Basin,NW China,is the deepest well in *** has been producing both oil and gas from the Sinian at a depth of 8... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
New Industrialization: Characteristics, System Development and Implementation Pathway
收藏 引用
China Economist 2024年 第1期19卷 2-13页
作者: Research Group of the institute of Industrial Economics Chinese Academy of Social Sciences(CASS)BeijingChina
New industrialization in China, different from its past economic development pattern or patterns in developed nations, is the country’s theoretical innovation based on the positive and negative experiences of industr... 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
EVALUATION OF REVERSE PASSIVE HEMAGGLUTINATION (RPHA) FECAL OCCULT BLOOD TEST IN SCREENING OF COLORECTAL NEOPLASIA
收藏 引用
Chinese Journal of Cancer Research 1994年 第4期6卷 274-278页
作者: 余海 周伦 郑备义 邱培林 郑树 孙其荣 邵毓文 马新源 1. Cancer institute Zhejiang Medical University 310009 Hangzhou China 2. Haining Cancer institute 314400 Haining China 3. Jiashan Cancer institute 314100 Jiashan China
A high risk population consisting of 3034 people with history of rectal polyps or ulcers were screened for colorectal neoplasia with Reverse Passive Hemagglutination Fecal Occult Blood Test (RPHA FOB) and 60 cm fibero... 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
Are TrkB receptor agonists the right tool to fulfill the promises for a therapeutic value of the brain-derived neurotrophic factor?
收藏 引用
Neural Regeneration Research 2024年 第1期19卷 29-34页
作者: Marta Zagrebelsky Martin Korte Division of Cellular Neurobiology Zoological InstituteTU BraunschweigBraunschweigGermany Helmholtz Centre for Infection Research AG NINDBraunschweigGermany
Brain-derived neurotrophic factor signaling via its receptor tro pomyosin receptor kinase B regulates several crucial physiological *** has been shown to act in the brain,promoting neuronal survival,growth,and plastic... 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
Generation of large fifth-order nonlinear phase shifts by use of lossless χ^((2.) cascaded nonlinear processes
收藏 引用
Science China(Physics,Mechanics & Astronomy) 2004年 第1期47卷 1-7页
作者: XU Guang1, QIAN Liejia2. WANG Tao2. FAN Dianyuan1,2.& LI Fuming2.1. Shanghai institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2.1800, China 2. State Key Laboratory for Advanced Photonic Materials and Devices, Fudan University, Shanghai 2.0433, China Correspondence should be addressed to Xu Guang (email: xuguany@***) Received March 9, 2.03 1. Shanghai institute of Optics and Fine Mechanics Chinese Academy of Sciences 201800 Shanghai China 2. State Key Laboratory for Advanced Photonic Materials and Devices Fudan University 200433 Shanghai China
It is shown that the cascaded fifth-order nonlinear phase shifts will increase with energy loss in the cascaded processes. Essentially different from the multi-photon absorption accompanied with inherent material nonl... 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 Akp-Btk value method and the resultsfor the retrieval of the parameters of the Earth's free core nutation
收藏 引用
Acta Seismologica Sinica(English Edition) 2000年 第3期13卷 342-350,358页
作者: 雷湘鄂 贾民育 李辉 1. Opening Laboratory of Dynamic Geodesy Institute of Geodesy and Geophysics Chinese Academy of Sciences 430077 Wuhan China 2. institute of Seismology China Seismological Bureau 430071 Wuhan China
The rotation of the Earth's liquid core creates the Nearly Diurnal Free Wobble (NDFW). It is one of the problems of researching the Earth's liquid core for us to retrieve the parameters of the Earth's Free Core Nutati... 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