咨询与建议

限定检索结果

文献类型

  • 20,465 篇 期刊文献
  • 857 篇 会议
  • 497 册 图书
  • 6 篇 学位论文

馆藏范围

  • 21,671 篇 电子文献
  • 160 种 纸本馆藏

日期分布

学科分类号

  • 9,220 篇 工学
    • 2,569 篇 材料科学与工程(可...
    • 1,530 篇 化学工程与技术
    • 1,313 篇 生物医学工程(可授...
    • 995 篇 机械工程
    • 915 篇 环境科学与工程(可...
    • 907 篇 电子科学与技术(可...
    • 815 篇 电气工程
    • 798 篇 力学(可授工学、理...
    • 756 篇 计算机科学与技术...
    • 697 篇 动力工程及工程热...
    • 687 篇 地质资源与地质工...
    • 640 篇 水利工程
    • 539 篇 冶金工程
  • 9,150 篇 医学
    • 7,580 篇 临床医学
    • 1,216 篇 基础医学(可授医学...
    • 1,112 篇 医学技术(可授医学...
    • 761 篇 公共卫生与预防医...
    • 730 篇 中西医结合
    • 598 篇 药学(可授医学、理...
  • 7,231 篇 理学
    • 2,037 篇 物理学
    • 2,036 篇 化学
    • 1,793 篇 生物学
    • 890 篇 数学
    • 873 篇 地球物理学
    • 782 篇 天文学
    • 778 篇 地质学
    • 634 篇 生态学
  • 2,421 篇 农学
    • 854 篇 作物学
    • 575 篇 农业资源与环境
    • 528 篇 畜牧学
  • 650 篇 管理学
  • 396 篇 教育学
  • 349 篇 经济学
  • 187 篇 法学
  • 160 篇 文学
  • 86 篇 艺术学
  • 81 篇 历史学
  • 43 篇 哲学
  • 37 篇 军事学

主题

  • 163 篇 ct
  • 129 篇 患者
  • 121 篇 mri
  • 60 篇 analysis
  • 58 篇 病人
  • 50 篇 危险因素
  • 47 篇 mr
  • 42 篇 diabetes
  • 42 篇 安慰剂对照
  • 40 篇 药物治疗
  • 39 篇 cancer
  • 38 篇 health
  • 38 篇 力学性能
  • 38 篇 properties
  • 38 篇 of
  • 37 篇 corrosion
  • 35 篇 high
  • 35 篇 and
  • 34 篇 magnetic
  • 33 篇 phylogeny

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...
  • 67 篇 school of physic...
  • 67 篇 department of ph...
  • 66 篇 national researc...
  • 66 篇 ludwig-maximilia...
  • 66 篇 cea/saclay dsm/i...
  • 65 篇 santa cruz insti...
  • 65 篇 陕西工学院
  • 64 篇 kobayashi-maskaw...

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
  • 80 篇 v.burkert
  • 79 篇 y.hayato
  • 78 篇 a.v.gritsan
  • 76 篇 a.gurtu
  • 75 篇 m.carena
  • 75 篇 a.masoni
  • 73 篇 叶鹏
  • 71 篇 s.rolli
  • 62 篇 kavli ipmu
  • 62 篇 l.pape
  • 62 篇 a.d.martin
  • 58 篇 b.heltsley
  • 54 篇 s.r.klein
  • 49 篇 d.h.weinberg

语言

  • 11,695 篇 中文
  • 10,110 篇 英文
  • 17 篇 其他
检索条件"作者=E.G.m.is.eva"
21825 条 记 录,以下是31-40 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
A holistic approach to improving safety for battery energy storage systems
收藏 引用
Journal of energy Chemistry 2024年 第5期92卷 422-439页
作者: James Close Jonathan e.Barnard Y.m.John Chew Semali Perera Department of Chemical engineering Centre for DigitalManufacturing&DesignUniversity of BathBath BA27AYUK iomosaic International Limited 16-18 Queen SquareBath BA12HNUK
The integration of battery energy storage systems(BeSS)throughout our energy chain poses concerns regarding safety,especially since batteries have high energy density and numerous BeSS failure events have *** spread a... 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
Intelligent Fractional-Order Controller for SmeS Systems in Renewable energy-Based microgrid
收藏 引用
Computer modeling in engineering & Sciences 2024年 第8期140卷 1807-1830页
作者: Aadel m.Alatwi Abualkasim Bakeer Sherif A.Zaid Ibrahem e.Atawi Hani Albalawi Ahmed m.Kassem electrical engineering Department Faculty of EngineeringUniversity of TabukTabuk47913Saudi Arabia Industrial Innovation and Robotic Center(IIRC) University of TabukTabuk47731Saudi Arabia Department of electrical engineering Faculty of EngineeringAswan UniversityAswan81542Egypt Renewable energy and environmental Technology Centre University of TabukTabuk47913Saudi Arabia electrical engineering Department Faculty of EngineeringSohag UniversitySohag82524Egypt
An autonomous microgrid that runs on renewable energy sources is presented in this *** has a supercon-ducting magnetic energy storage(SmeS)device,wind energy-producing devices,and an energy storage ***,because such mi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Kriging-boosted CR modeling for prompt infill drilling optimization
收藏 引用
Petroleum 2024年 第1期10卷 39-48页
作者: elizaveta S.gladchenko Anna e.gubanova Denis m.Orlov Dmitry A.Koroteev Skolkovo Institute of Science and Technology Russian Federation Digital Petroleum LLC Russian Federation
The capacitance-resistance model(CRm) has been a useful physics-based tool for obtaining production forecasts for decades. However, the model's limitations make it difficult to work with real field cases,where a lot o... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Organ Abscission in Plants: With Special emphasis on Bell Pepper
收藏 引用
Phyton-International Journal of experimental Botany 2024年 第7期93卷 1467-1484页
作者: Ramiro Reyes-Castro Héctor g.Núñez-Palenius Juan I.Valiente-Banuet maría e.Sosa-morales Blanca e.Orosco-Alcalá Rafael guzmán-mendoza graciela m.L.Ruiz-Aguilar Rogelio Costilla-Salazar Life Sciences Division Universidad de GuanajuatoIrapuato36500México School of engineering and Sciences Tecnologico de MonterreyQuerétaro76130México
Bell pepper(Capsicum annuum L.),along with potato and tomato,is one of the three most cultivated vegetables in the *** pepper is worldwide accepted due to its characteristics of color,smell,flavor,and *** pepper is als... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
magneto-Photo-Thermoelastic excitation Rotating Semiconductor medium Based on moisture Diffusivity
收藏 引用
Computer modeling in engineering & Sciences 2024年 第10期141卷 107-126页
作者: Khaled Lotfy A.m.S.mahdy Alaa A.el-Bary e.S.elidy Department of mathematics Faculty of ScienceZagazig UniversityZagazig44519Egypt Department of mathematics Faculty of ScienceTaibah UniversityMadinah42353Saudi Arabia Department of mathematics and Statistics College of ScienceTaif UniversityTaif11099Saudi Arabia Arab Academy for Science Technology and Maritime TransportAlexandria1029Egypt
In this research,we focus on the free-surface deformation of a one-dimensional elastic semiconductor medium as a function of magnetic field and moisture *** problem aims to analyze the interconnection between plasma a... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A Proposed Feature Selection Particle Swarm Optimization Adaptation for Intelligent Logistics--A Supply Chain Backlog elimination Framework
收藏 引用
Computers, materials & Continua 2024年 第6期79卷 4081-4105页
作者: Yasser Hachaichi Ayman e.Khedr Amira m.Idrees College of Computing and Information Technology at Khulais Department of Information SystemsUniversity of JeddahJeddah21959Saudi Arabia Faculty of Computers and Information Technology Future University in EgyptCairo11835Egypt
The diversity of data sources resulted in seeking effective manipulation and *** challenge that arises from the increasing dimensionality has a negative effect on the computation performance,efficiency,and stability o... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Piezo1 expression in chondrocytes controls endochondral ossification and osteoarthritis development
收藏 引用
Bone Research 2024年 第1期12卷 199-214页
作者: Laura J.Brylka Assil-Ramin Alimy miriam e.A.Tschaffon-müller Shan Jiang Tobias malte Ballhause Anke Baranowsky Simon von Kroge Julian Delsmann eva Pawlus Kian eghbalian Klaus Püschel Astrid Schoppa melanie Haffner-Luntzer David J.Beech Frank Timo Beil michael Amling Johannes Keller Anita Ignatius Timur A.Yorgan Tim Rolvien Thorsten Schinke Department of Osteology and Biomechanics University Medical Center Hamburg-Eppendorf20246 HamburgGermany Department of Trauma and Orthopedic Surgery University Medical Center Hamburg-Eppendorf20246 HamburgGermany Institute of Orthopedic Research and Biomechanics University Medical Center UlmBadenWürttemberg89081 UlmGermany Department Legal medicine University Medical Center Hamburg-Eppendorf20246 HamburgGermany Leeds Institute of Cardiovascular and metabolic medicine School of MedicineUniversity of LeedsLS29JT LeedsUK
Piezo proteins are mechanically activated ion channels,which are required for mechanosensing functions in a variety of cell *** we and others have previously demonstrated that the expression of Piezo1 in osteoblast li... 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
Novel Sustainable Cellulose Acetate Based Biosensor for glucose Detection
收藏 引用
Journal of Renewable materials 2024年 第2期12卷 369-380页
作者: m.F.elkady e.m.el-Sayed mahmoud Samy Omneya A.Koriem H.Shokry Hassan Chemical and Petrochemical engineering Department Egypt-Japan University of Science and TechnologyNew Borg El-ArabAlexandriaEgypt Fabrication Technology Research Department Advanced Technology and New Materials Research InstituteCity of Scientific Research and Technological Applications(SRTA-City)New Borg El-ArabAlexandria21934Egypt Department of Public Works engineering Faculty of EngineeringMansoura UniversityMansoura35516Egypt environmental engineering Department Egypt-Japan University of Science and TechnologyNew Borg El-ArabAlexandriaEgypt electronic materials Research Department Advanced Technology and NewMaterials Research InstituteCity of Scientific Research and Technological Applications(SRTA-City)New Borg El-ArabAlexandria21934Egypt
In this study,green zinc oxide(ZnO)/polypyrrole(Ppy)/cellulose acetate(CA)film has been synthesized via solvent *** film was used as supporting material for glucose oxidase(gOx)to sensitize a glucose *** nanoparticles... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
early-onset gastrointestinal cancer:An epidemiological reality with great significance and implications
收藏 引用
World Journal of gastrointestinal Oncology 2024年 第3期16卷 583-597页
作者: John K Triantafillidis Konstantinos georgiou manousos m Konstadoulakis Apostolos e Papalois Department of IBD and gI endoscopy Metropolitan General HospitalHolargos 15562AthensGreece.Hellenic Society for Gastrointestinal Oncology354 Iera OdosChaidari 12461AtticaGreece 2nd Department of Surgery University of Athens School of MedicineAretaieion HospitalAthens 11528Greece
During the last few years,epidemiological data from many countries suggest that the incidence and prevalence of many cancers of the digestive system are shifting from the older to the younger ages,the so-called“early... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论