咨询与建议

限定检索结果

文献类型

  • 93,200 篇 期刊文献
  • 6,059 篇 会议
  • 2,682 册 图书
  • 553 篇 学位论文
  • 13 篇 报纸

馆藏范围

  • 101,244 篇 电子文献
  • 1,313 种 纸本馆藏

日期分布

学科分类号

  • 40,112 篇 医学
    • 31,914 篇 临床医学
    • 4,282 篇 医学技术(可授医学...
    • 3,068 篇 中西医结合
    • 2,962 篇 基础医学(可授医学...
    • 2,340 篇 公共卫生与预防医...
    • 1,966 篇 药学(可授医学、理...
  • 35,124 篇 工学
    • 6,890 篇 材料科学与工程(可...
    • 4,462 篇 化学工程与技术
    • 3,752 篇 生物医学工程(可授...
    • 2,765 篇 电子科学与技术(可...
    • 2,675 篇 计算机科学与技术...
    • 2,191 篇 机械工程
    • 1,656 篇 动力工程及工程热...
    • 1,514 篇 仪器科学与技术
    • 1,410 篇 地质资源与地质工...
    • 1,247 篇 控制科学与工程
    • 1,227 篇 力学(可授工学、理...
    • 1,221 篇 电气工程
  • 17,871 篇 理学
    • 3,374 篇 化学
    • 3,352 篇 数学
    • 3,242 篇 物理学
    • 2,471 篇 生物学
    • 1,497 篇 地质学
  • 7,722 篇 农学
    • 1,952 篇 作物学
    • 1,299 篇 畜牧学
    • 1,265 篇 农业资源与环境
  • 4,520 篇 管理学
    • 2,120 篇 管理科学与工程(可...
    • 1,345 篇 公共管理
  • 3,110 篇 经济学
    • 2,641 篇 应用经济学
  • 2,293 篇 教育学
    • 1,525 篇 教育学
  • 2,041 篇 法学
  • 1,481 篇 文学
  • 499 篇 艺术学
  • 483 篇 历史学
  • 415 篇 哲学
  • 156 篇 军事学

主题

  • 823 篇 治疗
  • 821 篇 ct
  • 678 篇 mri
  • 515 篇 病人
  • 509 篇 of
  • 507 篇 诊断
  • 438 篇 患者
  • 415 篇 儿童
  • 413 篇 and
  • 372 篇 美国
  • 342 篇 mr
  • 306 篇 中国
  • 292 篇 cancer
  • 282 篇 analysis
  • 174 篇 covid-19
  • 172 篇 energy
  • 161 篇 treatment
  • 159 篇 disease
  • 153 篇 machine learning
  • 149 篇 microstructure

机构

  • 170 篇 四川省人民医院
  • 162 篇 上海第二医科大学...
  • 153 篇 北京大学
  • 113 篇 中国人民大学
  • 104 篇 中国人民公安大学
  • 95 篇 清华大学
  • 91 篇 华中科技大学
  • 87 篇 university of ch...
  • 80 篇 上海市第一人民医...
  • 80 篇 上海交通大学
  • 77 篇 香港理工大学
  • 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...
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...
  • 66 篇 南京大学

作者

  • 211 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 84 篇 m.white
  • 81 篇 刘莉
  • 67 篇 郭俊
  • 61 篇 china
  • 60 篇 mohamed s. el na...
  • 59 篇 朱国栋
  • 49 篇 p.de jong
  • 46 篇 霍文
  • 46 篇 唐光健
  • 41 篇 王铮
  • 40 篇 people’s bank of...
  • 37 篇 general administ...
  • 35 篇 李长根
  • 28 篇 崔荣
  • 28 篇 v.i.belousov
  • 27 篇 余英豪

语言

  • 60,358 篇 中文
  • 42,139 篇 英文
  • 2 篇 法文
  • 1 篇 日文
检索条件"作者=s.A.ali"
102507 条 记 录,以下是101-110 订阅
排序:
New-fashioned solitons of coupled nonlinear Maccari systems describing the motion of solitary waves in fluid flow
收藏 引用
Journal of Ocean Engineering and science 2024年 第4期9卷 353-363页
作者: Tarikul Islam ali Akbar Hadi Rezazadeh Ahmet Bekir Department of Mathematics Hajee Mohammad Danesh Science and Technology UniversityDinajpurBangladesh Department of Applied Mathematics University of RajshahiBangladesh Faculty of Modern Technologies Engineering Amol University of Special Modern TechnologiesAmolIran Neighbourhood of Akcaglan Imarli StreetNo.28/4Eskisehir 26030Turkey
The schrodinger equation type nonlinear coupled Maccari system is a significant equation that flourished with the wide-ranging arena concerning fluid flow and the theory of deep-water waves,physics of plasma,nonlinear... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
WebFLex:A Framework for Web Browsers-Based Peer-to-Peer Federated Learning systems Using WebRTC
收藏 引用
Computers, Materials & Continua 2024年 第3期78卷 4177-4204页
作者: Mai Alzamel Hamza ali Rizvi Najwa Altwaijry Isra Al-Turaiki Department of Computer science College of Computer and Information SciencesKing Saud UniversityRiyadhKingdom of Saudi Arabia Department of Computer science and Engineering Punjab Engineering CollegeChandigarhIndia
scalability and information personal privacy are vital for training and deploying large-scale deep learning *** learning trains models on exclusive information by aggregating weights from various devices and taking ad... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Carbon compensation and carbon neutrality:Regional variations based on net carbon transfer of trade in China
收藏 引用
Geoscience Frontiers 2024年 第4期15卷 159-175页
作者: Xue Han Xincai Gao Fayyaz Ahmad Abbas ali Chandio salim Khan school of Economics Lanzhou UniversityLanzhou 730000GansuChina College of Economics Sichuan Agricultural UniversityChengdu 611130China school of Management Guangzhou UniversityGuangzhou 510006China
Inter-provincial carbon compensation is an important means for a country to realize regional environmental protection and achieve coordinated regional development and realize the carbon neutral *** is easier to realiz... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
simulation-based assessment for the emergency medicine milestones: a national survey of simulation experts and program directors
收藏 引用
World Journal of Emergency Medicine 2024年 第4期15卷 301-305页
作者: Afrah A ali Ashley Crimmins Hegang Chen Danya Khoujah Department of Emergency Medicine University of Maryland School of MedicineBaltimore 21201USA Department of Epidemiology and Public Health University of Maryland School of MedicineBaltimore 21201USA Department of Emergency Medicine AdventHealth TampaTampa 33606USA
The focus of outcome-based education has shifted from the process of training to the end“product”of *** has necessitated a reframing of the teaching,learning,and ***,in 2013,the Accreditation Council for Graduate Me... 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
Clinical applications of the CRIsPR/Cas9 genome-editing system: Delivery options and challenges in precision medicine
收藏 引用
Genes & Diseases 2024年 第1期11卷 268-282页
作者: Mohadeseh Khoshandam Hossein soltaninejad Marziyeh Mousazadeh Amir ali Hamidieh saman Hosseinkhani Department of Reproductive Biology Academic Center for EducationCultureand Research(ACECR)Qom BranchQom ***Iran National Institute of Genetic Engineering and Biotechnology(NIGEB) Tehran 14155-6463Iran Faculty of Interdisciplinary science and Technology Tarbiat Modares UniversityTehran 14117-13116Iran Pediatric Cell and Gene Therapy Research Center GeneCell&Tissue Research InstituteTehran UniversityofMedical SciencesTehran14155-6559Iran Department of Nanobiotechnology Faculty of Biological SciencesTarbiat Modares UniversityTehran 14117-13116Iran Department of Biochemistry Faculty of Biological SciencesTarbiat Modares UniversityTehran 14117-13116Iran
CRIsPR/Cas9 is an effective gene editing tool with broad applications for the pre-vention or treatment of numerous *** depends on CRisPR(clustered regularly inter-spaced short palindromic repeats)as a bacterial immune... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Conservation laws,Lie symmetries,self adjointness,and soliton solutions for the selkov–schnakenberg system
收藏 引用
Communications in Theoretical Physics 2024年 第2期76卷 29-44页
作者: Kashif ali Aly R seadawy syed T R Rizvi Noor Aziz Department of Mathematics COMSATS University IslamabadLahore CampusPakistan Mathematics Department Faculty of ScienceTaibah UniversityAl-Madinah Al-Munawarah41411Saudi Arabia
In this article,we explore the famous selkov–schnakenberg(ss)system of coupled nonlinear partial differential equations(PDEs)for Lie symmetry analysis,self-adjointness,and conservation ***,miscellaneous soliton solut... 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
Exploring the shadow of a rotating charged ModMax black hole
收藏 引用
Communications in Theoretical Physics 2024年 第2期76卷 89-101页
作者: Khurshid Karshiboev Farruh Atamurotov Ahmadjon Abdujabbarov ali Övgün Anvar Reyimberganov Institute of Theoretical Physics National University of UzbekistanTashkent 100174Uzbekistan New Uzbekistan University Movarounnahr Street 1Tashkent 100000Uzbekistan Central Asian University Milliy Bog'Street 264Tashkent 111221Uzbekistan University of Tashkent for Applied sciences Str.Gavhar 1Tashkent 100149Uzbekistan Tashkent state Technical University Tashkent 100095Uzbekistan Ulugh Beg Astronomical Institute Astronomy Street 33Tashkent 100052Uzbekistan Institute of Fundamental and Applied Research National Research University TIIAMEKori Niyoziy 39Tashkent 100000Uzbekistan Physics Department Eastern Mediterranean UniversityFamagusta99628 North Cyprusvia Mersin 10Turkey Urgench state University Urgench 220100Uzbekistan
The research presented in this paper discusses the impact that the parameters of charge(Q)and screening factor(γ)have on properties of the horizon and silhouette of rotating charged Mod Max black holes which were rev... 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
3D Foam-Based MXene Architectures:structural and Electrolytic Engineering for Advanced Potassium-Ion storage
收藏 引用
Energy & Environmental Materials 2024年 第4期7卷 64-73页
作者: Peng Zhang Yanmeng Peng Qizhen Zhu Razium ali soomro Ning sun Bin Xu state Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology Beijing Advanced Innovation Centre for soft Matter science and Engineering Beijing University of Chemical Technology
MXenes are emerging rapidly as promising electrode materials for energy storage due to their high electronic conductivity and rich surface chemistry,but their potassium storage performance is unsatisfactory because of... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Robust design of sliding mode control for airship trajectory tracking with uncertainty and disturbance estimation
收藏 引用
Journal of systems Engineering and Electronics 2024年 第1期35卷 242-258页
作者: WAsIM Muhammad ali Ahsan CHOUDHRY Mohammad Ahmad sHAIKH Inam Ul Hasan sALEEM Faisal Department of Aeronautics and Astronautics Engineering Institute of Space TechnologyIslamabad 44000Pakistan Department of Electrical Engineering University of Engineering and TechnologyTaxila 47080Pakistan Department of Measurements and Control systems Silesian University of TechnologyGliwice 44-101Poland The Joint Doctoral school Silesian University of TechnologyGliwice 44-100Poland
The robotic airship can provide a promising aerostatic platform for many potential *** applications require a precise autonomous trajectory tracking control for *** has a nonlinear and uncertain *** is prone to wind d... 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
Mechanical and magneto-electronic properties of europium lanthanide-based cubic perovskites EuYO_(3)(Y=Cr, Mn, Fe): An ab initio study
收藏 引用
Journal of Rare Earths 2024年 第3期42卷 562-569,I0005页
作者: Hayat Ullah Azra sarwar sajad ali Rabah Khenata Abdelmadjid Bouhemadou saad Bin-Omran Department of Physics Women University of Azad Jammu&Kashmir Bagh 10250Pakistan Department of Physics Abdul Wali Khan UniversityMardan23200KPPakistan LPQ3M Laboratory Institute of Science and TechnologyUniversity of Mascara29000MascaraAlgeria Laboratory for Developing New Materials and Their Characterization Farhat Abbas University Setif l19000SetifAlgeria Department of Physics and Astronomy College of ScienceKing Saud UniversityP.O.Box 2455Riyadh11451Saudi Arabia
Computational calculations using density functional theory(DFT) were performed for the first time using the full potential linearized augmented plane wave plus local orbital method(FP-LAPW + LO) to determine the struc... 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