咨询与建议

限定检索结果

文献类型

  • 12,966 篇 期刊文献
  • 751 篇 会议
  • 666 册 图书
  • 2 篇 报纸
  • 1 篇 学位论文

馆藏范围

  • 14,164 篇 电子文献
  • 238 种 纸本馆藏

日期分布

学科分类号

  • 5,882 篇 医学
    • 4,885 篇 临床医学
    • 870 篇 医学技术(可授医学...
    • 632 篇 基础医学(可授医学...
    • 478 篇 中西医结合
    • 363 篇 公共卫生与预防医...
    • 247 篇 药学(可授医学、理...
  • 4,885 篇 工学
    • 933 篇 材料科学与工程(可...
    • 817 篇 生物医学工程(可授...
    • 615 篇 化学工程与技术
    • 402 篇 电子科学与技术(可...
    • 298 篇 机械工程
    • 266 篇 仪器科学与技术
    • 259 篇 计算机科学与技术...
    • 223 篇 光学工程
    • 218 篇 动力工程及工程热...
    • 198 篇 地质资源与地质工...
    • 191 篇 环境科学与工程(可...
    • 177 篇 电气工程
  • 2,952 篇 理学
    • 619 篇 物理学
    • 537 篇 生物学
    • 421 篇 化学
    • 357 篇 数学
    • 302 篇 地质学
    • 213 篇 生态学
    • 174 篇 地球物理学
  • 1,365 篇 农学
    • 305 篇 畜牧学
    • 264 篇 作物学
    • 239 篇 农业资源与环境
  • 491 篇 管理学
    • 221 篇 管理科学与工程(可...
  • 291 篇 经济学
    • 247 篇 应用经济学
  • 224 篇 教育学
  • 159 篇 文学
  • 123 篇 艺术学
  • 118 篇 法学
  • 54 篇 历史学
  • 45 篇 哲学
  • 31 篇 军事学

主题

  • 136 篇 ct
  • 90 篇 患者
  • 68 篇 mri
  • 44 篇 mr
  • 43 篇 病人
  • 38 篇 基因突变
  • 35 篇 乳腺
  • 32 篇 发生率
  • 30 篇 危险因素
  • 30 篇 phylogeny
  • 30 篇 美国
  • 28 篇 药物治疗
  • 28 篇 安慰剂对照
  • 27 篇 analysis
  • 26 篇 pet
  • 26 篇 dna
  • 25 篇 认知功能
  • 24 篇 mechanical prope...
  • 23 篇 diabetes
  • 23 篇 小麦

机构

  • 69 篇 department of ph...
  • 68 篇 university of mi...
  • 68 篇 department of ph...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 67 篇 nstitucio catala...
  • 66 篇 national researc...
  • 66 篇 school of physic...
  • 66 篇 ludwig-maximilia...
  • 66 篇 cea/saclay dsm/i...
  • 66 篇 department of ph...
  • 66 篇 kobayashi-maskaw...
  • 66 篇 high energy phys...
  • 66 篇 department of ph...

作者

  • 88 篇 v.i.belousov
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 83 篇 v.burkert
  • 82 篇 y.hayato
  • 82 篇 a.v.gritsan
  • 79 篇 a.gurtu
  • 78 篇 m.carena
  • 76 篇 a.masoni
  • 73 篇 s.rolli
  • 72 篇 a.d.martin
  • 72 篇 b.heltsley
  • 72 篇 s.r.klein
  • 70 篇 d.h.weinberg
  • 69 篇 u.f.katz
  • 66 篇 l.pape
  • 66 篇 m.titov

语言

  • 8,821 篇 中文
  • 5,560 篇 英文
  • 1 篇 法文
  • 1 篇 其他
检索条件"作者=E.J.A.khan"
14386 条 记 录,以下是11-20 订阅
排序:
Impact of device resistances in the performance of graphene‑based terahertz photodetectors
收藏 引用
Frontiers of Optoelectronics 2024年 第2期17卷 87-97页
作者: O.Castelló Sofía M.López Baptista K.Watanabe T.Taniguchi e.Diez j.e.Velázquez-Pérez Y.M.Meziani j.M.Caridad j.A.Delgado-Notario Department of Applied Physics University of Salamanca37008 SalamancaSpain Unidad de excelencia en Luz y Materia estructurada(LUMeS) University of Salamanca37008 SalamancaSpain Research Center for electronic and Optical Materials National Institute for Materials Science1-1 NamikiTsukuba 305-0044Japan Research Center for Materials Nanoarchitectonics National Institute for Materials Science1-1 NamikiTsukuba 305-0044Japan Nanotechnology Group USAL-NanolabUniversity of Salamanca37008 SalamancaSpain
In recent years,graphene field-effect-transistors(GFeTs)have demonstrated an outstanding potential for terahertz(THz)photodetection due to their fast response and *** features are essential to enable emerging THz appl... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Comparisons of oxbow lake fish assemblages in relation to bigheaded carp establishment in the lower White River, Arkansas
收藏 引用
ecological Processes 2024年 第1期13卷 188-205页
作者: Michael A.eggleton Cody j.Salzmann joseph e.Kaiser Shannon C.F.Smith Department of Aquaculture and Fisheries University of Arkansas at Pine Bluff Arkansas Game and Fish Commission Virginia Institute of Marine Science
Background Since the late 1990s, bigheaded carps(largely silver carp [Hypophthalmichthys molitrix] but also bighead carp [H. nobilis]) have established throughout the lower Mississippi River basin. Using previously st... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
exploring the effects of anthropogenic disturbance on predator inspection activity in Trinidadian guppies
收藏 引用
Current Zoology 2024年 第1期70卷 109-111页
作者: Alix j.P Brusseau Laurence e.A.Feyten Adam L.Crane Grant e.Brown Department of Biology Concordia UniversityMontrealQCH4B 1R6Canada Department of Biomedical Sciences WCVMUniversity of SaskatchewanSaskatoonSKCanada
Prey animals are often faced with uncertainty due to having imperfect information regarding current local conditions,including predation risks and the availability of reliable foraging opportunities(Dall 2010).As this... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Malargüe Site Remediation:A Successful Solution for Uranium Mill Tailings
收藏 引用
原子能科学技术 2024年 第10期58卷 2088-2094页
作者: BARARI e DíAZ j G GIOMIA KeMPF R A National Atomic energy Commission Av.Del Libertador 8250Ciudad Autónoma de Buenos AiresC1429BNPArgentina
Comisión Nacional de energía Atómica (CNeA) has the responsibility for restoring uranium mining facilities once the operations have ***,within its environmental Program and in compliance with its legal responsibili... 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
ABMRF:An ensemble Model for Author Profiling Based on Stylistic Features Using Roman Urdu
收藏 引用
Intelligent Automation & Soft Computing 2024年 第2期39卷 301-317页
作者: Aiman Muhammad Arshad Bilal khan Khalil khan Ali Mustafa Qamar Rehan Ullah khan Department of Computer Science City University of Science and Information TechnologyPeshawarPakistan Department of Computer Science School of Engineering and Digital SciencesNazarbayev UniversityAstanaKazakhstan Department of Computer Science College of ComputerQassim UniversityBuraydahSaudi Arabia Department of Information Technology College of ComputerQassim UniversityBuraydahSaudi Arabia
This study explores the area of Author Profiling(AP)and its importance in several industries,including forensics,security,marketing,and education.A key component of AP is the extraction of useful information from text... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A Systematic Review of Computer Vision Techniques for Quality Control in end-of-Line Visual Inspection of Antenna Parts
收藏 引用
Computers, Materials & Continua 2024年 第8期80卷 2387-2421页
作者: Zia Ullah Lin Qi e.j.Solteiro Pires Arsénio Reis Ricardo Rodrigues Nunes School of electrical and Information engineering Zhengzhou UniversityZhengzhou450001China School of Science and Technology Universidade de Trás-os-Montes e Alto DouroVila Real5000-801Portugal
The rapid evolution of wireless communication technologies has underscored the critical role of antennas in ensuring seamless *** defects,ranging from manufacturing imperfections to environmental wear,pose significant... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Individual and geospatial factors associated with receipt of colorectal cancer screening:a state-wide mixed-level analysis
收藏 引用
Family Medicine and Community Health 2024年 第S2期12卷 18-25页
作者: jennifer e Bayly Mara A Schonberg Marcia C Castro Kenneth j Mukamal Beth Israel Deaconess Medical Center BostonMassachusettsUSA Harvard Medical School BostonMassachusettsUSA Department of Global Health and Population Harvard T H Chan School of Public HealthBostonMassachusettsUSA
Background Colorectal cancer(CRC)is the second leading cause of cancer death in US adults but can be reduced by *** roles of individual and contextual factors,and especially physician supply,in attaining universal CRC... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Deterministic epidemic models overestimate the basic reproduction number of observed outbreaks
收藏 引用
Infectious Disease Modelling 2024年 第3期9卷 680-688页
作者: Wajid Ali Christopher e.Overton Robert R.Wilkinson Kieran j.Sharkey Department of Mathematical Sciences University of LiverpoolPeach StreetLiverpoolL697ZXEnglandUnited Kingdom Department of Applied Mathematics Liverpool John Moores UniversityByrom StreetLiverpoolL35UXEnglandUnited Kingdom
The basic reproduction number,R_(0),is a well-known quantifier of epidemic ***,a class of existing methods for estimating R_(0)from incidence data early in the epidemic can lead to an over-estimation of this *** parti... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Cavity-agnostic acoustofluidic manipulations enabled by guided flexural waves on a membrane acoustic waveguide actuator
收藏 引用
Microsystems & Nanoengineering 2024年 第2期10卷 153-171页
作者: Philippe Vachon Srinivas Merugu jaibir Sharma Amit Lal eldwin j.Ng Yul Koh joshua e.-Y.Lee Chengkuo Lee Department of electrical and Computer engineering National University of SingaporeSingaporeSingapore Institute of Microelectronics Agency for ScienceTechnology and Research(A*STAR)SingaporeSingapore SonicMeMS Laboratory School of Electrical and Computer EngineeringCornell UniversityIthacaNYUSA School of electrical and Data engineering University of Technology SydneyUltimoNSWAustralia
This article presents an in-depth exploration of the acoustofluidic capabilities of guided flexural waves(GFWs)generated by a membrane acoustic waveguide actuator(MAWA).By harnessing the potential of GFWs,cavity-agnos... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
SARS-CoV-2 triggers Dickkopf-1(Dkk-1)modulation of T helper cells and lung pathology in mice
收藏 引用
Genes & Diseases 2024年 第4期11卷 9-12页
作者: Yifan Wu Freedom M.Green Stephen A.Shaw Lauren j.Bonilla Shannon e.Ronca Maria elena Bottazzi Farrah Kheradmand jill e.Weatherhead Department of Pathology&Immunology One Baylor PlazaHoustonTX 77030USA Department of Pediatrics One Baylor PlazaHoustonTX 77030USA Department of Medicine One Baylor PlazaHoustonTX 77030USA National School of Tropical Medicine One Baylor PlazaHoustonTX 77030USA Molecular Virology&Microbiology One Baylor PlazaHoustonTX77030USA Biologyof Inflammation Center Baylor College of MedicineOne BaylorPlazaHoustonTX77030USA Michael e.DeBakey VA Center for Translational Research on Inflammatory Diseases HoustonTX 77030USA
Severe acute respiratory syndrome coronavirus 2(SARSCov-2)is the etiologic agent of the coronavirus disease 19(COVID-19)*** viral infections like SARS-CoV-2,a robust anti-viral type 1 immune response,including upregul... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论