咨询与建议

限定检索结果

文献类型

  • 77,250 篇 期刊文献
  • 5,300 册 图书
  • 5,195 篇 会议
  • 32 篇 学位论文
  • 19 篇 报纸

馆藏范围

  • 85,406 篇 电子文献
  • 2,506 种 纸本馆藏

日期分布

学科分类号

  • 33,914 篇 工学
    • 7,921 篇 材料科学与工程(可...
    • 4,748 篇 化学工程与技术
    • 4,523 篇 生物医学工程(可授...
    • 3,792 篇 机械工程
    • 2,864 篇 电子科学与技术(可...
    • 2,710 篇 计算机科学与技术...
    • 2,598 篇 动力工程及工程热...
    • 2,381 篇 电气工程
    • 2,307 篇 地质资源与地质工...
    • 2,092 篇 力学(可授工学、理...
    • 2,085 篇 环境科学与工程(可...
    • 1,912 篇 冶金工程
    • 1,765 篇 控制科学与工程
    • 1,717 篇 水利工程
  • 29,222 篇 医学
    • 24,202 篇 临床医学
    • 4,320 篇 医学技术(可授医学...
    • 3,849 篇 基础医学(可授医学...
    • 2,571 篇 公共卫生与预防医...
    • 2,162 篇 中西医结合
    • 1,868 篇 药学(可授医学、理...
  • 19,485 篇 理学
    • 5,267 篇 化学
    • 4,922 篇 物理学
    • 4,667 篇 生物学
    • 2,395 篇 地质学
    • 2,241 篇 数学
    • 1,986 篇 地球物理学
  • 8,079 篇 农学
    • 2,490 篇 作物学
    • 2,010 篇 畜牧学
  • 4,057 篇 管理学
    • 1,750 篇 管理科学与工程(可...
  • 2,717 篇 教育学
  • 2,622 篇 经济学
    • 2,261 篇 应用经济学
  • 1,743 篇 法学
  • 1,730 篇 文学
  • 662 篇 艺术学
  • 628 篇 历史学
  • 585 篇 哲学
  • 177 篇 军事学

主题

  • 856 篇 ct
  • 811 篇 美国
  • 671 篇 mri
  • 520 篇 病人
  • 502 篇 患者
  • 418 篇 mr
  • 364 篇 北美洲
  • 291 篇 美利坚合众国
  • 228 篇 治疗
  • 210 篇 应用
  • 185 篇 中国
  • 174 篇 cancer
  • 147 篇 诊断
  • 143 篇 设计
  • 129 篇 儿童
  • 127 篇 analysis
  • 124 篇 产量
  • 124 篇 方程
  • 121 篇 英国
  • 119 篇 and

机构

  • 217 篇 北京大学
  • 124 篇 南京大学
  • 106 篇 同济大学
  • 106 篇 清华大学
  • 95 篇 同济医科大学附属...
  • 85 篇 美国加州大学
  • 81 篇 华中科技大学
  • 76 篇 university of ch...
  • 71 篇 浙江大学
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 中国科学院大学
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...
  • 66 篇 compas group ins...
  • 66 篇 rudolf peierls c...

作者

  • 164 篇 叶鹏
  • 110 篇 郭俊
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 72 篇 p.de jong
  • 67 篇 刘莉
  • 66 篇 朱国栋
  • 63 篇 唐光健
  • 61 篇 j.zhang
  • 60 篇 li j
  • 55 篇 王铮
  • 50 篇 china
  • 44 篇 郭战宏
  • 43 篇 v.i.belousov
  • 43 篇 胡孔足
  • 42 篇 余英豪
  • 39 篇 崔荣
  • 38 篇 李长根

语言

  • 59,874 篇 中文
  • 27,843 篇 英文
  • 45 篇 其他
  • 1 篇 德文
  • 1 篇 法文
检索条件"作者=j.mitchell"
87796 条 记 录,以下是191-200 订阅
排序:
Addressable structured light system using metasurface optics and an individually addressable VCSEL array
收藏 引用
Photonics Research 2024年 第6期12卷 1129-1137页
作者: CHENYANG WU XUANLUN HUANG YIPENG jI TINGYU CHENG jIAXING WANG NAN CHI SHAOHUA YU CONNIE j.CHANG-HASNAIN School of Information Science and Technology Fudan UniversityShanghai 200433China Berxel Photonics Co. Ltd.Shenzhen 518071China Peng Cheng Laboratory Shenzhen 518055China Chinese University of Hong Kong Shenzhen 518172China
Structured-light(SL)based 3D sensors have been widely used in many *** SL is the most widely deployed among all SL sensors due to its light weight,compact size,fast video rate,and low *** transmitter(known as the dot ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Investigating ischemia and reperfusion-induced organ damage in severe cardiac arrest:A comprehensive proteomics perspective
收藏 引用
journal of Pharmaceutical Analysis 2024年 第3期14卷 427-430页
作者: ju Yeon Lee Muhammad Shoaib jin-Woong Choi Rishabh C.Choudhary Tai Yin Nara Yoon Kei Hayashida Seunguk j.Baek Santiago j.Miyara Lance B.Becker junhwan Kim Research Center of Bioconvergence Analysis Korea Basic Science InstituteCheongjuSouth Korea Bio-Analytical Science University of Science and TechnologyCheongjuSouth Korea Laboratory for Critical Care Physiology Feinstein Institutes for Medical ResearchManhassetNY11030USA Donald and Barbara Zucker School of Medicine at Hofstra/Northwell School of Medicine HempsteadNY11549USA Mathematics and Computer Science Adelphi UniversityGarden CityNY11530USA Department of Emergency Medicine North Shore University HospitalManhassetNY11030USA
Cardiac arrest(CA)is a life-threatening condition with complex pathophysiology and limited treatment *** gain deeper insights into the pathological state of vital organs,we employed a proteomics analysis in rodents to... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Theoretical and experimental investigations on an X-shaped vibration isolator with active controlled variable stiffness
收藏 引用
Applied Mathematics and Mechanics(English Edition) 2024年 第8期45卷 1371-1386页
作者: Zeyu CHAI j.T.HAN Xuyuan SONG jian ZANG Yewei ZHANG Zhen ZHANG College of Aerospace Engineering Shenyang Aerospace University jacobs School of Engineering University of California San Diego Key Laboratory of Vibration and Control of Aero-Propulsion System Ministry of EducationNortheastern University
A novel X-shaped variable stiffness vibration isolator(X-VSVI) is *** Runge-Kutta method, harmonic balance method, and wavelet transform spectra are introduced to evaluate the performance of the X-VSVI under various e... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Finding biomarkers of experience in animals
收藏 引用
journal of Animal Science and Biotechnology 2024年 第3期15卷 925-944页
作者: Sarah Babington Alan j.Tilbrook Shane K.Maloney jill N.Fernandes Tamsyn M.Crowley Luoyang Ding Archa H.Fox Song Zhang Elise A.Kho Daniel Cozzolino Timothy j.Mahony Dominique Blache School of Agriculture and Environment The University of Western AustraliaCrawleyWA 6009Australia Centre for Animal Science The Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandSt LuciaQLD 4072Australia School of Veterinary Science The University of QueenslandGattonQLD 4343Australia School of Human Sciences The University of Western AustraliaCrawleyWA 6009Australia School of Medicine Deakin UniversityGeelongVIC 3217Australia Poultry Hub Australia University of New EnglandArmidaleNSW 2350Australia College of Animal Science and Technology Yangzhou UniversityYangzhou 225009China Centre for Nutrition and Food Sciences The Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandSt LuciaQLD 4072Australia
At a time when there is a growing public interest in animal welfare,it is critical to have objective means to assess the way that an animal experiences a *** is critical to ensure appropriate animal welfare *** behavi... 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
Long-term olfactory loss post-COVID-19:Pathobiology and potential therapeutic strategies
收藏 引用
World journal of Otorhinolaryngology-Head and Neck Surgery 2024年 第2期10卷 148-155页
作者: Sarah Kim john B.Finlay Tiffany Ko Bradley j.Goldstein Department of Head and Neck Surgery&Communication Sciences Duke UniversityDurhamNorth CarolinaUSA Medical Scientist Training Program Duke UniversityDurhamNorth CarolinaUSA Department of Neurobiology Duke UniversityDurhamNorth CarolinaUSA
An acute loss of smell emerged as a striking symptom present in roughly half of the people infected with the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)virus in the early phases of the COVID-19 *** mos... 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
Resolution and alteration with ample exceptional divisor
收藏 引用
Science China Mathematics 2024年
作者: jános Kollár jakub Witaszek Department of Mathematics Princeton University
In this note, we construct resolutions or regular alterations admitting an ample exceptional divisor,assuming the existence of projective resolutions or regular alterations. In particular, this implies the existence o...
来源: 同方期刊数据库 同方期刊数据库 评论
Muscle strength deficits are associated with low bone mineral density in young pediatric cancer survivors:The iBoneFIT project
收藏 引用
journal of Sport and Health Science 2024年 第3期13卷 419-427页
作者: Andres Marmol-Perez jose j.Gil-Cosano Esther Ubago-Guisado Francisco j.Llorente-Cantarero juan Francisco Pascual-Gázquez Kirsten K.Ness Vicente Martinez-Vizcaino jonatan R.Ruiz Luis Gracia-Marco Department of Physical Education and Sports Faculty of Sport SciencesSport and Health University Research Institute(iMUDS)University of GranadaGranada 18011Spain Department of Epidemiology and Cancer Control St.Jude Children's Research HospitalMemphisTN 38105USA Department of Communication and Education Loyola University AndalusiaSeville 41704Spain Biosanitary Research Institute ibs.GranadaGranada 18012Spain Maimonides Biomedical Research Institute of Cordoba(IMIBIC) Cordoba 14004Spain CIBEROBN Biomedical Research Networking Center for Physiopathology of Obesity and NutritionCarlos III Health InstituteMadrid 28029Spain Department of Specific Didactics Faculty of EducationUniversity of CordobaCordoba 14071Spain Pediatric and adolescent hematology and oncology service Pediatrics and Pediatric Surgery Clinical Management UnitVirgen de las Nieves University HospitalGranada 18014Spain Health and Social Research Center Universidad de Castilla-La ManchaCuenca 13001Spain
Background Pediatric cancer survivors are at increased risk of muscle weakness and low areal bone mineral density(aBMD).However,the prevalence of muscle strength deficits is not well documented,and the associations of... 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
Life under tension: the relevance of force on biological polymers
收藏 引用
Biophysics Reports 2024年 第1期10卷 48-56页
作者: Matthew T.j.Halma Longfu Xu Department of Physics and Astronomy and Laser Lab Vrije Universiteit Amsterdam LUMICKS B.V.
Optical tweezers have elucidated numerous biological processes, particularly by enabling the precise manipulation and measurement of tension. One question concerns the biological relevance of these experiments and the... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Promoting green transformation by ensuring food security while reducing the environmental footprint of food and farming with agriculture green development
收藏 引用
Frontiers of Agricultural Science and Engineering 2024年 第1期11卷 1-4,I0005页
作者: William j.DAVIES jianbo SHEN Lancaster Environment Centre Lancaster UniversityLancaster LA14YQUK State Key Laboratory of Nutrient Use and Management National Academy of Agriculture Green DevelopmentCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China
Reconciling the challenges of producing adequate amounts of nutritious food for the increasing global population while limiting environmental damage that can result from operations of our food systems is an enormous *... 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
Relative Impacts of Sea Ice Loss and Atmospheric Internal Variability on the Winter Arctic to East Asian Surface Air Temperature Based on Large-Ensemble Simulations with NorESM2
收藏 引用
Advances in Atmospheric Sciences 2024年 第8期41卷 1511-1526页
作者: Shengping HE Helge DRANGE Tore FUREVIK Huijun WANG Ke FAN Lise Seland GRAFF Yvan j.ORSOLINI Geophysical Institute University of Bergen and Bjerknes Centre for Climate ResearchBergen 5020Norway Nansen Environmental and Remote Sensing Center Bergen 5007Norway Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Nanjing University of Information Science&TechnologyNanjing 211544China Nansen-Zhu International Research Center Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 511458China School of Atmospheric Science Sun Yat-Sen Universityand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Norwegian Meteorological Institute Oslo 0313Norway Norwegian Institute for Air Research Kjeller 2007Norway
To quantify the relative contributions of Arctic sea ice and unforced atmospheric internal variability to the “warm Arctic, cold East Asia”(WACE) teleconnection, this study analyses three sets of large-ensemble simu... 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