咨询与建议

限定检索结果

文献类型

  • 53,594 篇 期刊文献
  • 3,876 篇 会议
  • 3,024 册 图书
  • 36 篇 学位论文
  • 14 篇 报纸

馆藏范围

  • 59,197 篇 电子文献
  • 1,356 种 纸本馆藏

日期分布

学科分类号

  • 24,108 篇 工学
    • 5,552 篇 材料科学与工程(可...
    • 3,597 篇 化学工程与技术
    • 2,795 篇 生物医学工程(可授...
    • 2,623 篇 机械工程
    • 2,203 篇 动力工程及工程热...
    • 2,078 篇 计算机科学与技术...
    • 1,894 篇 电子科学与技术(可...
    • 1,591 篇 力学(可授工学、理...
    • 1,570 篇 地质资源与地质工...
    • 1,536 篇 电气工程
    • 1,519 篇 环境科学与工程(可...
    • 1,334 篇 水利工程
    • 1,311 篇 冶金工程
    • 1,226 篇 控制科学与工程
    • 1,170 篇 建筑学
  • 19,365 篇 医学
    • 16,083 篇 临床医学
    • 2,574 篇 医学技术(可授医学...
    • 2,433 篇 基础医学(可授医学...
    • 1,655 篇 公共卫生与预防医...
    • 1,464 篇 中西医结合
  • 13,941 篇 理学
    • 3,756 篇 化学
    • 3,522 篇 物理学
    • 3,190 篇 生物学
    • 1,800 篇 数学
    • 1,441 篇 地质学
    • 1,357 篇 地球物理学
  • 5,539 篇 农学
    • 1,706 篇 作物学
    • 1,276 篇 畜牧学
  • 2,858 篇 管理学
  • 1,996 篇 经济学
    • 1,758 篇 应用经济学
  • 1,828 篇 教育学
    • 1,223 篇 教育学
  • 1,312 篇 法学
  • 1,180 篇 文学
  • 654 篇 艺术学
  • 476 篇 历史学
  • 368 篇 哲学
  • 133 篇 军事学

主题

  • 493 篇 mri
  • 486 篇 ct
  • 417 篇 美国
  • 363 篇 患者
  • 253 篇 病人
  • 236 篇 mr
  • 198 篇 中国
  • 150 篇 治疗
  • 148 篇 北美洲
  • 132 篇 analysis
  • 113 篇 应用
  • 112 篇 of
  • 106 篇 美利坚合众国
  • 96 篇 cancer
  • 95 篇 设计
  • 82 篇 英国
  • 81 篇 儿童
  • 80 篇 health
  • 78 篇 and
  • 74 篇 诊断

机构

  • 185 篇 香港理工大学
  • 123 篇 西南民族大学
  • 110 篇 北京大学
  • 104 篇 南京大学
  • 73 篇 同济大学
  • 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 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 67 篇 nstitucio catala...
  • 67 篇 department of ph...
  • 67 篇 香港城市大学
  • 66 篇 national researc...
  • 66 篇 school of physic...
  • 66 篇 ludwig-maximilia...

作者

  • 164 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 刘闯
  • 82 篇 p.de jong
  • 80 篇 v.i.belousov
  • 72 篇 china
  • 62 篇 v.burkert
  • 58 篇 joanna c.lee
  • 56 篇 王铮
  • 47 篇 kavli ipmu
  • 46 篇 l.pape
  • 44 篇 y.hayato
  • 44 篇 郭俊
  • 43 篇 刘莉
  • 39 篇 a.v.gritsan
  • 37 篇 朱国栋
  • 34 篇 余英豪

语言

  • 39,390 篇 中文
  • 21,116 篇 英文
  • 17 篇 其他
检索条件"作者=C.C.Kuranz"
60544 条 记 录,以下是4991-5000 订阅
排序:
Assessing spatial variability and erosion susceptibility of soils in hilly agricultural areas in Southern Italy
收藏 引用
International Soil and Water conservation Research 2020年 第4期8卷 354-362页
作者: carmen Maria Rosskopf Erika Di Iorio Luana circelli claudio colombo Pietro P.c.Aucelli University of Molise Department of Biosciences and Territoryc.da Fonte Lappone86090PescheISItaly University of Molise Department of AgriculturalEnvironmental and Food SciencesVia F.De Sanctis186100CampobassoCBItaly University of Napoli"Parthenope" Department of Environmental SciencesCentro Direzionale Isola C/480143NapoliItaly
Soil erosion is one of the main environmental problems in the Mediterranean *** problem is becoming even more important especially in Italy,in the Apennines,where severe erosive processes occur due to the action of co... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber
收藏 引用
chinese Optics Letters 2018年 第2期16卷 93-97页
作者: H.Ahmad S.N.Aidit S.I.Ooi Z.c.Tiu Photonics Research centre University of Malaya
A tunable passively Q-switched ytterbium-doped fiber laser using few-layer gallium selenide(GaSe) as a saturable absorber(SA) is *** few-layer GaSe SA,which is fabricated by the mechanical exfoliation method,is ab... 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
On the Generalized Strongly Nil-clean Property of Matrix Rings
收藏 引用
Algebra colloquium 2021年 第4期28卷 625-634页
作者: Aleksandra S.Kostic Zoran Z.Petrovic Zoran S.Pucanovic Maja Roslavcev Faculty of Mathematics University of Belgrade Studentski trg 1611000 BelgradeSerbia Faculty of civil Engineering University of Belgrade Bulevar kralja Aleksandra 7311000 BelgradeSerbia
Let R be an associative unital ring and not necessarily *** analyze conditions under which every n×n matrix A over R is expressible as a sum A=E1+…+Es+N of(commuting)idempotent matrices Ei and a nilpotent matrix N.
来源: 维普期刊数据库 维普期刊数据库 评论
Artificial intelligence for characterization of diminutive colorectal polyps:A feasibility study comparing two computer-aided diagnosis systems
收藏 引用
Artificial Intelligence in Gastrointestinal Endoscopy 2024年 第1期5卷 11-22页
作者: Quirine Eunice Wennie van der Zander Ramon M Schreuder Ayla Thijssen carolus H J Kusters Nikoo Dehghani Thom Scheeve Bjorn Winkens Mirjam c M van der Ende-van Loon Peter H N de With Fons van der Sommen Ad A M Masclee Erik J Schoon Department of Gastroenterology and Hepatology Maastricht University Medical CenterMaastricht 6202 AZNetherlands GROW School for Oncology and ReproductionMaastricht UniversityMaastricht 6200 MDNetherlands Division of Gastroenterology and Hepatology Catharina Hospital EindhovenEindhoven 5602 ZANetherlands Department of Electrical Engineering Eindhoven University of TechnologyEindhoven 5600 MBNetherlands Department of Methodology and Statistics Maastricht UniversityPostbus 6166200 MD MaastrichtNetherlands School for Public Health and Primary care Maastricht UniversityMaastricht 6200 MDNetherlands
BAcKGROUND Artificial intelligence(AI)has potential in the optical diagnosis of colorectal *** To evaluate the feasibility of the real-time use of the computer-aided diagnosis system(cADx)AI for coloRectal Polyps(AI4c... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Towards a natural classification and backbone tree for Graphostromataceae,Hypoxylaceae,Lopadostomataceae and Xylariaceae
收藏 引用
Fungal Diversity 2018年 第1期88卷 1-165页
作者: Dinushani A.Daranagama Kevin D.Hyde Esteban B.Sir Kasun M.Thambugala Qing Tian Milan c.Samarakoon Eric H.c.McKenzie Subashini c.Jayasiri Saowaluck Tibpromma Jayarama D.Bhat XingZhong Liu Marc Stadler State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesNo.31st West Beichen RoadChaoyang DistrictBeijing 100101People’s Republic of China center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouPeople’s Republic of China Department of Microbial Drugs Helmholtz-Zentrum fu¨r Infektionsforschung GmbHInhoffenstrasse 738124 BrunswickGermany Fundacion Miguel Lillo CONICETInstitute of MycologyMiguel Lillo 2514000 San Miguel de TucumanTucumanArgentina Department of Botany Goa UniversityGoa 403206India Manaaki Whenua Landcare Research Private Bag 92170AucklandNew Zealand
Species and generic recognition in the order Xylariales has been uncertain due to lack of molecular data from authentic cultures,as well as overlapping morphological *** this study,we revise the families Graphostroma... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
computational Insights into charge Storage Mechanisms of Supercapacitors
收藏 引用
Energy & Environmental Materials 2020年 第3期3卷 235-246页
作者: Kui Xu Hui Shao Zifeng Lin céline Merlet Guang Feng Jixin Zhu Patrice Simon Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816China cIRIMAT Universite de ToulouseCNRSUniversite Toulouse 3-Paul Sabatier118 Route de NarbonneToulouse cedex 931062France Reseausurle Stockage Electrochimique de l’Energie(RS2E) Federation de Recherche CNRS 3459HUB de l’EnergieRue BaudelocqueAmiens 80039France college of Materials Science and Engineering Sichuan UniversityNo.24 South Section 1Yihuan RoadChengdu 610065China State Key Laboratory of coal combustion School of Energy and Power EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074China Nano Interface centre for Energy School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074China
computational modeling methods,including molecular dynamics(MD)and Monte carlo(Mc)simulations,and density functional theory(DFT),are receiving booming interests for exploring charge storage mechanisms of electrochemic... 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
comparison between the theoretical models and experimental structures of some oc tacoordinated Ln(Ⅲ)-bis-dipyridyl-bis-dichloroacetato-diaquo complexes and their phenanthroline analogues
收藏 引用
Journal of Rare Earths 2010年 第S1期28卷 83-85页
作者: S. P. SINHA Alfredo M. SIMAS Gustavo L. c. MOURA SRD 6565 Willowick Pl.DaytonOHIO 45459-3005U.S.A. Departamento de Quimica Fundamental CCENUniversidade Federal de Pernambuco50590-470Recif ePEBrazil
The title complexes were modeled using the semiempirical MOPAc and the newly developed SPARKLE paramerters of the lanthanides. The calculated bond dis tances and angles agreed well with those found from crystal struct... 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
Methods used for evaluation of volume retention rate in autologous fat grafting for breast augmentation: a systematic review
收藏 引用
chinese Medical Journal 2019年 第18期132卷 2223-2228页
作者: cheng-Long Wang Si-Si Luan Adriana c.Panayi Min-Qiang Xin Jie Luan Department of Aesthetic and Reconstructive Breast Surgery Plastic Surgery Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100144 China Department of Endocrinology Shandong Provincial Hospital affiliated to Shandong University Shandong Clinical Medical Center of Endocrinology and Metabolism Institute of Endocrinology and Metabolism Shandong Academy of Clinical Medicine Jinan Shandong 250021 China Division of Plastic Surgery Brigham and Women’s Hospital Harvard Medical School Boston MA 02115 USA
Background:Autologous fat grafting has gained popularity in breast *** methods can be used to estimate the volume retention *** systematic review aimed to establish whether the type of method used for measuring breast... 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
基于三维cT多层解剖特征的肾细胞癌部分或根治性肾切除术自动化手术决策框架
收藏 引用
国际医学放射学杂志 2024年 第1期 124-124页
作者: H.c.Yang K.Wu H.L.Liu P.Wu Y.G.Yuan L.Wang 刘爽
摘要 目的 探讨3D-cT多层解剖特征能否为肾细胞癌部分切除或根治性切除的手术决策提供更准确的预测。方法该研究是一项多中心回顾性队列研究。纳入473例经病理
来源: 同方期刊数据库 同方期刊数据库 评论
conductivity and dielectric studies on LiceO_2
收藏 引用
Journal of Rare Earths 2010年 第3期28卷 435-438页
作者: M.Prabu S.Selvasekarapandian A.R.Kulkarni G.Hirankumar c.Sanjeeviraja Department of Metallurgical Engineering and Material Science Indian Institute of Technology Bombay Department of Physics Kalasalingam University Department of Physics Alagappa University
LiceO2 was prepared by a solid-state reaction method using microwave heat treatment and identified by X-ray ***2 has monoclinic crystal structure whose conductivity and dielectric properties were studied over a range ... 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