咨询与建议

限定检索结果

文献类型

  • 91,388 篇 期刊文献
  • 5,388 篇 会议
  • 3,887 册 图书
  • 139 篇 学位论文
  • 16 篇 报纸
  • 2 篇 多媒体

馆藏范围

  • 99,174 篇 电子文献
  • 1,728 种 纸本馆藏

日期分布

学科分类号

  • 40,826 篇 工学
    • 10,897 篇 材料科学与工程(可...
    • 5,804 篇 化学工程与技术
    • 5,042 篇 生物医学工程(可授...
    • 4,672 篇 机械工程
    • 3,771 篇 计算机科学与技术...
    • 3,728 篇 电子科学与技术(可...
    • 3,357 篇 力学(可授工学、理...
    • 3,225 篇 动力工程及工程热...
    • 3,196 篇 电气工程
    • 2,956 篇 地质资源与地质工...
    • 2,894 篇 环境科学与工程(可...
    • 2,491 篇 冶金工程
    • 2,441 篇 水利工程
    • 2,132 篇 控制科学与工程
    • 2,045 篇 建筑学
  • 36,128 篇 医学
    • 30,545 篇 临床医学
    • 4,514 篇 基础医学(可授医学...
    • 4,450 篇 医学技术(可授医学...
    • 2,962 篇 公共卫生与预防医...
    • 2,582 篇 中西医结合
  • 26,895 篇 理学
    • 7,473 篇 化学
    • 7,244 篇 物理学
    • 6,160 篇 生物学
    • 4,153 篇 数学
    • 2,877 篇 地质学
    • 2,796 篇 地球物理学
    • 2,600 篇 天文学
  • 9,545 篇 农学
    • 3,155 篇 作物学
    • 2,214 篇 畜牧学
  • 3,983 篇 管理学
  • 2,554 篇 经济学
    • 2,230 篇 应用经济学
  • 2,446 篇 教育学
  • 1,714 篇 法学
  • 1,379 篇 文学
  • 659 篇 艺术学
  • 584 篇 历史学
  • 487 篇 哲学
  • 176 篇 军事学

主题

  • 989 篇 ct
  • 859 篇 mri
  • 591 篇 美国
  • 543 篇 病人
  • 532 篇 患者
  • 435 篇 mr
  • 433 篇 and
  • 421 篇 of
  • 333 篇 cancer
  • 269 篇 analysis
  • 250 篇 北美洲
  • 238 篇 治疗
  • 196 篇 美利坚合众国
  • 175 篇 disease
  • 165 篇 诊断
  • 163 篇 water
  • 159 篇 儿童
  • 141 篇 energy
  • 135 篇 acid
  • 134 篇 应用

机构

  • 178 篇 北京大学
  • 146 篇 同济医科大学附属...
  • 109 篇 清华大学
  • 88 篇 浙江大学
  • 71 篇 华中科技大学同济...
  • 68 篇 university of mi...
  • 68 篇 university of ch...
  • 68 篇 南京大学
  • 67 篇 美国加州大学
  • 67 篇 institute for pa...
  • 67 篇 香港理工大学
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 66 篇 华中科技大学
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...
  • 65 篇 中国地质大学
  • 64 篇 compas group ins...

作者

  • 242 篇 叶鹏
  • 232 篇 m.k
  • 117 篇 刘莉
  • 113 篇 郭俊
  • 86 篇 m.white
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 80 篇 朱国栋
  • 74 篇 唐光健
  • 49 篇 王铮
  • 49 篇 p.de jong
  • 49 篇 刘凯
  • 46 篇 郭战宏
  • 45 篇 余英豪
  • 41 篇 linda m.chung
  • 40 篇 崔荣
  • 39 篇 李长根
  • 38 篇 graul a i
  • 37 篇 y.hatsukawa

语言

  • 59,787 篇 中文
  • 40,993 篇 英文
  • 22 篇 其他
  • 2 篇 日文
检索条件"作者=M.C.terreros"
100820 条 记 录,以下是91-100 订阅
排序:
Endoscopic ultrasound-guided portal pressure gradient identifies patients with previously undiagnosed clinically significant portal hypertension
收藏 引用
Portal Hypertension & cirrhosis 2024年 第2期3卷 67-74页
作者: Jerome c.Edelson Scott F.D.Edelson John G.Quiles cyrus V.Edelson Eric m.montminy christian L.Horn John P.magulick Don c.Rockey Department of Gastroenterology and Hepatology Brooke Army Medical CenterFort Sam HoustonTexasUSA Department of medicine Uniformed Services University of the Health SciencesBethesdaMarylandUSA Department of medicine Brooke Army Medical CenterFort Sam HoustonTexasUSA John H.Stroger Jr.Hospital of cook county ChicagoIllinoisUSA Digestive Disease Research center Medical University of South CarolinaCharlestonSouth CarolinaUSA
Aims:Portal hypertension(PH)is a complication of cirrhosis that leads to hepatic *** the portal pressure gradient(PPG)provides valuable information for disease assessment,staging,and *** this study,we aimed to report ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Enabling low-cost decentralized power reserves adopting carbon dioxide for green methane exchange in stabilized clathrate adsorbent
收藏 引用
Journal of Energy chemistry 2024年 第10期97卷 438-443页
作者: Lucas Hanssens maarten Houlleberghs c.Vinod chandran Geert Watson Sambhu Radhakrishnan Pascal Van Der Voort Joeri F.m.Denayer christine E.A.Kirschhock Johan A.martens Eric Breynaert centre for Surface chemistry and catalysis-characterization and Application Team (cOK-KAT) NmR/X-Ray Platform for convergence Research (NmRcoRe) centre for Ordered materials Organometallics and Catalysis (COMOC) Department of Chemistry Ghent University Department of chemical Engineering Vrije Universiteit Brussel
*** circular methane energy systems In recent decades,methane-based energy systems have rapidly gained traction across the globe because of the increasing availability of low-cost methane production ***,fossil methane... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
An Adaptive Hate Speech Detection Approach Using Neutrosophic Neural Networks for Social media Forensics
收藏 引用
computers, materials & continua 2024年 第4期79卷 243-262页
作者: Yasmine m.Ibrahim Reem Essameldin Saad m.Darwish Department of Information Technology Institute of Graduate Studies and ResearchAlexandria UniversityAlexandria21526Egypt Faculty of computers and Information Technology Egyptian E-Learning University(EELU)Giza12611Egypt Faculty of computers and Data Science Alexandria UniversityAlexandria21554Egypt
Detecting hate speech automatically in social media forensics has emerged as a highly challenging task due tothe complex nature of language used in such platforms. currently, several methods exist for classifying hate... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Study of ZnO nanoparticle-supported clay minerals for electrochemical sensors,photocatalysis,and antioxidant applications
收藏 引用
chemPhysmater 2024年 第1期3卷 83-93页
作者: mylarappa m N.Raghavendra N.R.Bhumika c.H.chaithra B.N.Nagalaxmi K.N.Shravana Kumara Department of chemistry Sri Jagadguru Renukacharya College of ScienceArts&CommerceBengaluru 560009India Department of chemistry East West Institute of TechnologyBengaluru 560091India Department of chemistry Maharani Lakshmi Ammanni College for WomenBengaluru 560012India
In view of the current study’s demonstration of the synthesis of clay-doped ZnO composites,we present a low-cost method for producing clay-metal oxide(clay/ZnO).Utilizing the solution combustion technique,a composite... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
QcD sum rule study of J^(P)=1^(±)exotic states with two heavy quarks in the molecular picture
收藏 引用
chinese Physics c 2024年 第6期48卷 31-37页
作者: T.m.Aliev S.Bilmis m.Savcı Department of Physics Middle East Technical UniversityAnkara06800Turkey TUBITAK ULAKBIm Ankara06510Turkey
In this study,the spectroscopic parameters of exotic molecular states composed of mesons containing two heavy quarks(scalar-axial and pseudoscalar-axial meson combinations)are investigated within the QcD sum *** findi... 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
Optimal coordination of Transportable Power Sources and Repair crews for Service Restoration of Distribution Networks considering Uncertainty of Traffic congestion
收藏 引用
Journal of modern Power Systems and clean Energy 2024年 第1期12卷 189-201页
作者: Zhao Shi Yan Xu Dunjian Xie Shiwei Xie Amer m.Y.m.Ghias Nanyang Technological University Singapore the School of Electrical Engineering and Automation Fuzhou UniversityFuzhou 350108China
This paper proposes a new method for service restoration of distribution network with the support of transportable power sources(TPSs)and repair crews(Rcs).Firstly,a coupling model of distribution networks and vehicle... 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
航空铝合金激光焊接关键工艺参数与应力场关系
收藏 引用
兵工学报 2024年 第5期45卷 1692-1702页
作者: 李光祖 王江涛 谢利 卢雅林 张永康 胡可军 c.m.cAScIOLA 江苏理工学院材料工程学院 江苏常州213001 广东工业大学机械工程学院 广东广州511400 School of Aeronautics and mechanical Engineering Sapienza University of RomeSapienzaItaly
激光焊接工艺参数不仅影响铝合金结构件的残余应力,而且影响其服役性能,探究参数与应力场的关系对提高焊接结构件的质量具有重要的意义。采用圆锥热源模型对厚度为5 mm的7075-T7351铝合金板材进行激光焊接数值模拟,分析焊接速度和激光... 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 博看期刊 评论
Analysis of strong decays of SU(3)partners ofΩ(2012)baryon
收藏 引用
chinese Physics c 2024年 第8期48卷 34-41页
作者: T.m.Aliev S.Bilmis m.Savci Department of Physics Middle East Technical UniversityAnkara 06800Turkey TUBITAK ULAKBIm Ankara 06510Turkey
We estimate the coupling constants and decay widths of the SU(3)partners of theΩ(2012)hyperon,as discovered by the BELLE collaboration,using the distribution amplitudes of the octet baryons within the light cone sum ... 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
Ground-based and additional science support for SmILE
收藏 引用
Earth and Planetary Physics 2024年 第1期8卷 275-298页
作者: J.A.carter m.Dunlop c.Forsyth K.Oksavik E.Donovon A.Kavanagh S.E.milan T.Sergienko R.c.Fear D.G.Sibeck m.connors T.Yeoman X.Tan m.G.G.T.Taylor K.mcWilliams J.Gjerloev R.Barnes D.D.Billet G.chisham A.Dimmock m.P.Freeman D.-S.Han m.D.Hartinger S.-Y.W.Hsieh Z.-J.Hu m.K.James L.Juusola K.Kauristie E.A.Kronberg m.Lester J.manuel J.matzka I.mccrea Y.miyoshi J.Rae L.Ren F.Sigernes E.Spanswick K.Sterne A.Steuwer T.Sun m.-T.Walach B.Walsh c.Wang J.Weygand J.Wild J.Yan J.Zhang Q.-H.Zhang Planetary Sciences Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Rutherford Appleton Laboratory Space Science Technology Facilities CouncilOxfordshireUK School of Space and Environment Beihang UniversityBeijing 100191China Key Laboratory of Space Environment monitoring and Information Processing Ministry of Industry and Information TechnologyBeijing 100017China Department of Space and climate Physics UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK Birkeland centre for Space Science Department of Physics and Technology.University of BergenBergenNorway Department of Physics and Astronomy University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 British Antarctic Survey CambridgeUK Swedish Institute of Space Physics KirunaSweden West Highfield campus University of SouthamptonUniversity RoadSO171BJUK Goddard Space Flight center NASAGreenbeltMarylandUSA Athabasca University AthabascaCanada ESTEc European Space AgencyNetherlands University of Saskatchewan SaskatoonCanada The Johns Hopkins University Applied Physics Laboratory LaurelMarylandUSA Swedish Institude of Space Physics UppsalaSE 75121Sweden Tongji University Shanghai 200092China center for Space Plasma Physics Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA Polar Research Institute of china Shanghai 200136China Finnish meteorological Institute(FmI) Finland Department of Earth and Environmental Sciences(Geophysics) Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany canadian Space Agency MontrealCanada GFZ German Research centre for Geosciences PotsdamGermany Nagoya University Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 Northumbria University Newcastle upon TyneTyne and WearUK NE18ST National Space Science center Chinese Academy SciencesBeijing 100190China Arctic Geophysics University Centre in Svalbard
The joint European Space Agency and chinese Academy of Sciences Solar wind magnetosphere Ionosphere Link Explorer(SmILE)mission will explore global dynamics of the magnetosphere under varying solar wind and interplane... 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
Impact of increasing one-carbon metabolites on traumatic brain injury outcome using pre-clinical models
收藏 引用
Neural Regeneration Research 2024年 第8期19卷 1728-1733页
作者: Sanika m.Joshi Theresa currier Thomas Nafisa m.Jadavji college of Osteopathic medicine Midwestern UniversityGlendaleCAUSA Department of Biomedical Sciences Midwestern UniversityGlendaleCAUSA Department of child Health College of Medicine–PhoenixUniversity of ArizonaPhoenixAZUSA college of Veterinary medicine Midwestern UniversityGlendaleCAUSA Department of Neuroscience Carleton UniversityOttawaCanada
Traumatic brain injury is a major cause of death and disability worldwide,affecting over 69 million individuals ***-carbon metabolism has been shown to have beneficial effects after brain damage,such as ischemic ***,w... 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