咨询与建议

限定检索结果

文献类型

  • 22,884 篇 期刊文献
  • 1,717 篇 会议
  • 549 册 图书
  • 10 篇 学位论文

馆藏范围

  • 25,005 篇 电子文献
  • 165 种 纸本馆藏

日期分布

学科分类号

  • 10,896 篇 工学
    • 3,350 篇 材料科学与工程(可...
    • 2,073 篇 化学工程与技术
    • 1,658 篇 生物医学工程(可授...
    • 1,348 篇 机械工程
    • 1,024 篇 力学(可授工学、理...
    • 999 篇 电子科学与技术(可...
    • 938 篇 动力工程及工程热...
    • 903 篇 冶金工程
    • 899 篇 计算机科学与技术...
    • 854 篇 电气工程
    • 775 篇 环境科学与工程(可...
    • 661 篇 地质资源与地质工...
    • 607 篇 控制科学与工程
    • 601 篇 仪器科学与技术
    • 565 篇 水利工程
    • 538 篇 核科学与技术
  • 10,500 篇 医学
    • 8,819 篇 临床医学
    • 1,590 篇 医学技术(可授医学...
    • 1,407 篇 基础医学(可授医学...
    • 906 篇 中西医结合
    • 761 篇 公共卫生与预防医...
    • 683 篇 药学(可授医学、理...
  • 7,997 篇 理学
    • 2,837 篇 化学
    • 2,513 篇 物理学
    • 1,693 篇 生物学
    • 947 篇 数学
    • 809 篇 天文学
    • 787 篇 地球物理学
    • 713 篇 地质学
  • 2,149 篇 农学
    • 704 篇 作物学
  • 868 篇 管理学
  • 548 篇 教育学
  • 481 篇 经济学
  • 401 篇 法学
  • 381 篇 文学
  • 124 篇 历史学
  • 110 篇 艺术学
  • 108 篇 哲学
  • 26 篇 军事学

主题

  • 273 篇 ct
  • 186 篇 mri
  • 153 篇 患者
  • 80 篇 mr
  • 74 篇 病人
  • 61 篇 analysis
  • 59 篇 mechanical prope...
  • 51 篇 中国
  • 49 篇 危险因素
  • 45 篇 phylogeny
  • 39 篇 前列腺癌
  • 39 篇 of
  • 39 篇 儿童
  • 38 篇 simulation
  • 36 篇 acid
  • 36 篇 安慰剂对照
  • 35 篇 properties
  • 34 篇 小麦
  • 34 篇 治疗
  • 33 篇 diabetes

机构

  • 74 篇 北京大学
  • 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 school of physic...
  • 67 篇 department of ph...
  • 66 篇 national researc...
  • 66 篇 ludwig-maximilia...
  • 66 篇 cea/saclay dsm/i...
  • 66 篇 department of ph...
  • 65 篇 kobayashi-maskaw...
  • 64 篇 high energy phys...

作者

  • 490 篇 李昂
  • 89 篇 叶鹏
  • 87 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
  • 77 篇 y.hayato
  • 77 篇 a.v.gritsan
  • 72 篇 a.gurtu
  • 72 篇 m.carena
  • 70 篇 a.masoni
  • 62 篇 kavli ipmu
  • 62 篇 l.pape
  • 57 篇 s.rolli
  • 56 篇 ang li
  • 46 篇 a.d.martin
  • 44 篇 b.heltsley

语言

  • 13,948 篇 中文
  • 11,196 篇 英文
  • 9 篇 其他
  • 1 篇 德文
检索条件"作者=A.H.S.Ang"
25160 条 记 录,以下是61-70 订阅
排序:
A novel diurnal and seasonal variation analysis of BTEX in Bengaluru urban area
收藏 引用
Research in Cold and Arid Regions 2024年 第1期16卷 14-19页
作者: h.N.sowmya M.Dinamani G.P.shivashankara h.K.Ramaraju B.s.surendra Vijaya V.shanbhag R.Prajwal Department of Civil Engineering Dayananda Sagar College of EngineeringBangalore 560078India Department of Chemistry Dayananda Sagar College of EngineeringBangalore 560078India Department of Physics GFGCVijayanagarBengaluru 560040India
In the urban atmosphere of Bengaluru, various volatile organic compounds(VOCs), particularly Benzene,Toluene, Ethylbenzene, and Xylene(BTEX), have shown an increasing trend in concentration. The present research was c... 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
The Experience and Impact of a Fitbit-Based Physical Activity and sleep hygiene Intervention for Older Adults Experiencing Cognitive Decline
收藏 引用
Advances in Aging Research 2024年 第3期13卷 41-59页
作者: Kate Walker Chris Griffiths Jen Yates Louise Birkett-swan Farah hina Chee siang ang Research and Innovation Department Northamptonshire Healthcare NHS Foundation Trust Northampton UK Institute of Mental health University of Nottingham Nottingham UK Dementia and Older People’ s Psychology Provision Northamptonshire Healthcare NHS Foundation Trust Northampton UK school of Computing University of Kent Canterbury UK
Objectives: This study aimed to understand the experience and impact of a physical activity and sleep wrist-worn tracker (Fitbit)-based healthy lifestyle intervention for older patients attending a memory assessment s... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Application of Flower Borders in hefei City
收藏 引用
Journal of Landscape Research 2024年 第4期16卷 27-30页
作者: MENG Yuyang ZhAO Zhiyan ang shengchao MENG Yi WEN shiyang OU Xueni Department of Architecture and Landscape Design Anhui Xinhua UniversityHefei 230088China
The application value of 70 kinds of flowers in hefei City was evaluated by analytic hierarchy process(AhP).From the three aspects of adaptability,ornamental value and economic traits,12 indicators were summarized to ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
环境规制与企业纳税遵从:效应、机制与改善路径
收藏 引用
数量经济技术经济研究 2024年 第8期41卷 175-196页
作者: 罗宇 张明昂 西南财经大学财政税务学院 中央财经大学财政税务学院
随着我国环境规制力度的不断加强,环境合规成本已成为影响企业发展的重要因素。本文基于企业微观层面的税收和污染排放数据,研究政府提高环境规制对企业纳税遵从的影响。我们利用国家重点监控企业项目带来的环境规制力度加强,构造断点... 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
Mast cell activation syndrome:An up-to-date review of literature
收藏 引用
World Journal of Clinical Pediatrics 2024年 第2期13卷 104-113页
作者: ÖnerÖzdemir Gökçe Kasımoğlu Ayşegül Bak hüseyin sütlüoğlu süreyya savaşan Department of Pediatric Allergy and Immunology Sakarya UniversitySakaryaAdapazarı54100Türkiye Department of Pediatrics Sakarya UniversitySakaryaAdapazarı54100Türkiye Department of Pediatrics Kocaeli City HospitalKocaeli 50123Türkiye Department of Pediatrics Children’s Hospital of MichiganHematology/OncologyCentral Michigan University College of MedicineMount PleasantMI 48859United States Barbara Ann Karmanos Cancer Institute Wayne State UniversityDetroitMI 12345United States
Mast cells are a subtype of white blood cells and are involved in the immune *** cells contain many chemical substances called mediators,which are involved in the allergic *** fact that mast cells play a role in many ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Impact of carbimazole combined with vitamin E on testicular injury induced by experimental hyperthyroidism in adult albino rats:oxidative/inflammatory/apoptotic pathways
收藏 引用
Asian Journal of Andrology 2024年 第4期26卷 396-401页
作者: Ramadan s hussein Moustafa M Eyada Rashad M Mostafa samah M Elaidy shereen h Elsayed hany M saad Department of Dermatology College of Medicine Prince Sattam Bin Abdulaziz UniversityAl-Kharj 16242Saudi Arabia Department of Dermatology Andrology and STDsAssiut Police HospitalAssiut 71525Egypt Department of Dermatology Venereology and AndrologyFaculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of Andrology and sexology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Clinical Pharmacology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Rehabilitation sciences Faculty of Health and Rehabilitation SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh 12271Saudi Arabia.
Thyroid hormones play essential roles in spermatogenesis,but their effects on infertile males remain poorly *** study aimed to evaluate the impact of combining carbimazole(CBZ)with vitamin E(VE)on testicular injury in... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
荆江陈家湾—突起洲分汊段河道演变与趋势分析
收藏 引用
长江科学院院报 2024年 第7期41卷 196-202页
作者: 廖宇昂 刘瑜 长江水利委员会水文局荆江水文水资源勘测局 湖北荆州434000
三峡工程的运行极大减轻了荆江的防洪压力,同时改变了河段水沙条件,导致荆江持续发生剧烈冲淤变化。荆江陈家湾—突起洲段为典型微弯分汊河型,滩槽格局调整、主支汊易位将直接影响航道运行和防洪安排。基于三峡工程运行前后长系列水文... 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
Improving the utility of locally differentially private protocols for longitudinal and multidimensional frequency estimates
收藏 引用
Digital Communications and Networks 2024年 第2期10卷 369-379页
作者: héber h.Arcolezi Jean-François Couchot Bechara Al Bouna Xiaokui Xiao Inria andÉcole Polytechnique(IPP) PalaiseauFrance Femto-sT Institute Univ.Bourg.Franche-ComtéUBFCCNRSBelfortFrance TICKET Lab. Antonine University Hadat-BaabdaBaabdaLebanon school of Computing National University of SingaporeSingaporeSingapore
This paper investigates the problem of collecting multidimensional data throughout time(i.e.,longitudinal studies)for the fundamental task of frequency estimation under Local Differential Privacy(LDP)*** to frequency ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Theoretical characterization of the adsorption configuration of pyrrole on si(100)surface by x-ray spectroscopy
收藏 引用
Chinese Physics B 2024年 第2期33卷 430-435页
作者: 李好情 明静 姜志昂 李海波 马勇 宋秀能 school of Physics and Electronics Shandong Normal UniversityJinan 250358China
The possible configurations of pyrrole absorbed on a si(100)surface have been investigated by x-ray photoelectron spectroscopy(XPs)and near-edge x-ray absorption fine structure(NEXAFs)*** C-1s XPs and NEXAFs spectra o... 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
Identifying genetic susceptibility to Aspergillus fumigatus infection using collaborative cross mice and RNA-seq approach
收藏 引用
Animal Models and Experimental Medicine 2024年 第1期7卷 36-47页
作者: Roa'a h.s.Yosief Iqbal M.Lone Aharon Nachshon heinz himmelbauer Irit Gat-Viks Fuad A.Iraqi Department of Clinical Microbiology and Immunology Sackler Faculty of MedicineTel-Aviv UniversityTel-AvivIsrael school of Molecular Cell Biology and Biotechnology George S.Wise Faculty of Life SciencesTel Aviv UniversityTel AvivIsrael Institute of Computational Biology Department of BiotechnologyUniversity of Natural Resources and Life SciencesMuthgasse 181190 ViennaAustria
Background:Aspergillus fumigatus(Af)is one of the most ubiquitous fungi and its infection potency is suggested to be strongly controlled by the host genetic *** aim of this study was to search for candidate genes asso... 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