咨询与建议

限定检索结果

文献类型

  • 63,699 篇 期刊文献
  • 10,256 篇 会议
  • 3,604 册 图书
  • 177 篇 学位论文
  • 14 篇 报纸

馆藏范围

  • 76,129 篇 电子文献
  • 1,706 种 纸本馆藏

日期分布

学科分类号

  • 31,946 篇 工学
    • 5,329 篇 材料科学与工程(可...
    • 3,809 篇 化学工程与技术
    • 2,690 篇 控制科学与工程
    • 2,560 篇 机械工程
    • 2,553 篇 计算机科学与技术...
    • 2,515 篇 电子科学与技术(可...
    • 2,068 篇 生物医学工程(可授...
    • 1,756 篇 仪器科学与技术
    • 1,590 篇 软件工程
    • 1,449 篇 动力工程及工程热...
    • 1,317 篇 地质资源与地质工...
    • 1,314 篇 水利工程
    • 1,229 篇 电气工程
    • 1,175 篇 力学(可授工学、理...
    • 1,166 篇 信息与通信工程
  • 20,090 篇 医学
    • 15,850 篇 临床医学
    • 2,185 篇 医学技术(可授医学...
    • 1,865 篇 基础医学(可授医学...
    • 1,664 篇 中西医结合
    • 1,448 篇 公共卫生与预防医...
  • 15,879 篇 理学
    • 3,086 篇 数学
    • 2,800 篇 化学
    • 2,531 篇 物理学
    • 2,033 篇 生物学
    • 1,636 篇 系统科学
    • 1,362 篇 地质学
  • 7,226 篇 农学
    • 2,006 篇 作物学
    • 1,444 篇 畜牧学
  • 4,226 篇 管理学
    • 2,261 篇 管理科学与工程(可...
  • 2,546 篇 经济学
    • 2,257 篇 应用经济学
  • 1,618 篇 教育学
  • 1,255 篇 法学
  • 1,224 篇 文学
  • 487 篇 艺术学
  • 471 篇 哲学
  • 452 篇 历史学
  • 222 篇 军事学

主题

  • 525 篇 美国
  • 449 篇 ct
  • 307 篇 患者
  • 276 篇 mri
  • 271 篇 of
  • 230 篇 病人
  • 206 篇 北美洲
  • 198 篇 and
  • 182 篇 analysis
  • 152 篇 美利坚合众国
  • 149 篇 mr
  • 148 篇 cancer
  • 126 篇 应用
  • 114 篇 治疗
  • 108 篇 中国
  • 105 篇 方程
  • 94 篇 大洋洲
  • 93 篇 诊断
  • 92 篇 产量
  • 90 篇 diabetes

机构

  • 417 篇 深圳大学
  • 232 篇 山东大学
  • 127 篇 北京大学
  • 121 篇 西南民族大学
  • 96 篇 南京大学
  • 72 篇 清华大学
  • 71 篇 university of ch...
  • 71 篇 同济医科大学附属...
  • 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...
  • 66 篇 national researc...
  • 66 篇 department of ph...

作者

  • 663 篇 p.r.china
  • 150 篇 p. r. china
  • 103 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 81 篇 p.de jong
  • 77 篇 v.i.belousov
  • 60 篇 p.r. china
  • 54 篇 刘闯
  • 53 篇 shanghai
  • 48 篇 v.burkert
  • 46 篇 beijing
  • 43 篇 朱国栋
  • 37 篇 tsinghua univers...
  • 37 篇 郭俊
  • 36 篇 刘莉
  • 35 篇 kavli ipmu
  • 34 篇 王铮

语言

  • 44,454 篇 中文
  • 33,285 篇 英文
检索条件"作者=r.Ahmad"
77750 条 记 录,以下是111-120 订阅
排序:
Empowering Diagnosis: Cutting-Edge Segmentation and Classification in Lung Cancer Analysis
收藏 引用
Computers, Materials & Continua 2024年 第6期79卷 4963-4977页
作者: Iftikhar Naseer Tehreem Masood Sheeraz Akram Zulfiqar Ali Awais ahmad Shafiq Ur rehman Arfan Jaffar Faculty of Computer Sciences&Information Technology The Superior UniversityLahore54000Pakistan Intelligent Data Visual Computing research(IDVCr) Lahore54000Pakistan Information System Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia School of Computer Science and Electronic Engineering(CSEE) University of EssexWivenhoe ParkColchesterCO43SQUK
Lung cancer is a leading cause of global mortality *** detection of pulmonary tumors can significantly enhance the survival rate of ***,various Computer-Aided Diagnostic(CAD)methods have been developed to enhance the ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Forestvoltaics,Floatovoltaics and Building Applied Photovoltaics(BAPV)Potential for a University Campus
收藏 引用
Energy Engineering 2024年 第9期121卷 2331-2361页
作者: rittick Maity Muhammad Khairul Imran bin ahmad Shuhaimi Kumarasamy Sudhakar Amir Abdul razak Faculty of Electrical and Electronics Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahPekan26600Malaysia Centre for research in Advanced Fluid and Processes UniversitiMalaysia Pahang Al-Sultan AbdullahGambang26300Malaysia Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahPekan26600Malaysia Centre for Automotive Engineering Universiti Malaysia Pahang Al-Sultan AbdullahPekan26600Malaysia Energy Centre Maulana Azad National Institute of TechnologyBhopal462003India
The United Nations’Sustainable Development Goals(SDGs)highlight the importance of affordable and clean energy *** energy is a perfect example,being both renewable and *** popularity shows no signs of slowing down,wit... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Enhanced Topic-Aware Summarization Using Statistical Graph Neural Networks
收藏 引用
Computers, Materials & Continua 2024年 第8期80卷 3221-3242页
作者: Ayesha Khaliq Salman Afsar Awan Fahad ahmad Muhammad Azam Zia Muhammad Zafar Iqbal Department of Computer Science University of Agriculture FaisalabadFaisalabadPunjab37300Pakistan School of Computing Faculty of TechnologyUniversity of PortsmouthSouthseaPortsmouthPO12UPUK Department of Mathematics and Statistics University of Agriculture FaisalabadFaisalabadPunjab37300Pakistan
The rapid expansion of online content and big data has precipitated an urgent need for efficient summarization techniques to swiftly comprehend vast textual documents without compromising their original *** approaches... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Finite element analysis and experimental validation of polymer-metal contacts in block-on-ring configuration
收藏 引用
Friction 2024年 第3期12卷 554-568页
作者: K.Y.Eayal AWWAD Khosro FALLAHNEZHAD B.F.YOUSIF ahmad MOSTAFA Omar ALAJArMEH A.SHALWAN Xuesen ZENG Mechanical Engineering Department Faculty of EngineeringTafila Technical UniversityTafila 66110Jordan Medical Device research Institute College of Science and EngineeringFlinders UniversitySouth Australia 5042Australia Centre for Future Materials University of Southern QueenslandToowoomba 4350Australia Department of Manufacturing Engineering Technology Public Authority for Applied Education and TrainingKuwait 13092Kuwait
The wear profile analysis,obtained by different tribometers,is essential to characterise the wear ***,most of the available methods did not take the stress distribution over the wear profile in consideration,which cau... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Current updates on the epidemiology,pathogenesis and development of small molecule therapeutics for the treatment of Ebola virus infections
收藏 引用
Asian Pacific Journal of Tropical Medicine 2024年 第7期17卷 285-298,I0001-I0007页
作者: Shah Alam Khan Neelima Shrivastava MdJawaid Akhtar Aftab ahmad Asif Husain Department of Pharmaceutical Chemistry College of PharmacyNational University of Science and TechnologyPO Box 620Postal code 130MuscatSultanate of Oman Centre of Molecular Medicine and Diagnostics(COMMAND) Saveetha Dental College&HospitalsSaveetha Institute of Medical&Technical SciencesSaveetha UniversityChennai 600077India Department of Pharmaceutical Chemistry School of Pharmaceutical Education and ResearchJamia HamdardNew Delhi-110062India Department of Health Information Technology the Applied CollegeKing Abdulaziz UniversityJeddah-21589Kingdom of Saudi Arabia
Ebola virus disease(EVD)is a rare,highly contagious and a deadly disease with a variable fatality rate ranging from 30%to 90%.Over the past two decades,Ebola pandemic has severely affected the sub-Sahara region includ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Influence of erbium on structural,and charged particles,photons,and neutrons shielding properties of Ba_(1-x)Er_(x)SnO_(3) perovskite ceramics
收藏 引用
Journal of rare Earths 2024年 第4期42卷 724-732页
作者: M.K.h.Hamad Nidal Dwaikat M.H.A.Mhareb M.I.Sayyed r.M.Hamad Y.S.M.Alajerami M.A.Almessiere Gameel Saleh ahmad Hussein Alomari K.A.Ziq Department of Basic Sciences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Department of Physics College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Department of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basic and Applied Scientific research Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Department of Physics Faculty of ScienceIsra UniversityAmman11622Jordan Department of Nuclear Medicine research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia Medical Imaging Department Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Department of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Department of Biomedical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&Minerals regulatory Commission Amman11821Jordan
Five perovskite ceramics samples of Ba_(1-x)Er_(x)SnO_(3) with x=0.00,0.05,0.10,0.15,and 0.20 were synthesized using the conventional solid-state reaction *** prepared samples were characterized by X-ray diffraction(X... 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 Emotional Intelligence and the Associated Factors among Nursing Students
收藏 引用
Open Journal of Nursing 2024年 第3期14卷 114-126页
作者: ahmad Batran Faculty of Allied Medical Sciences Department of Nursing Palestine Ahliya University Bethlehem Palestine
Introduction: Emotional intelligence, or the capacity to cope one’s emotions, makes it simpler to form good connections with others and do caring duties. Nursing students can enroll a health team in a helpful and ben... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Soil erosion susceptibility mapping of Hangu region,Kohat Plateau of Pakistan using GIS and rS-based models
收藏 引用
Journal of Mountain Science 2024年 第8期21卷 2547-2561页
作者: Fakhrul ISLAM Liaqat Ali WASEEM Tehmina BIBI Waqar.ahmad Muhammad SADIQ Matee ULLAH Walid SOUFAN Aqil TArIQ Department of Geology Khushal Khan Khattak UniversityKarak 27200Pakistan Department of Geography Government College University FaisalabadPunjab 38000Pakistan Institute of Geology The University of Azad Jammu&KashmirMuzaffarabad 13100Pakistan Department of Earth Sciences Changan UniversityXi’an 710003China NCEG University of PeshawarPeshawar 25120Pakistan Faculty of Earth Sciences Geography and AstronomyUniversity of ViennaVienna 1090Austria Plant Production Department College of Food and Agriculture SciencesKing Saud UniversityRiyadh 11451Saudi Arabia Department of Wildlife Fisheries and AquacultureCollege of Forest ResourcesMississippi State UniversityMS 39762USA
Soil erosion is a crucial geo-environmental hazard worldwide that affects water quality and agriculture,decreases reservoir storage capacity due to sedimentation,and increases the danger of flooding and ***,this study... 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
Developing Lexicons for Enhanced Sentiment Analysis in Software Engineering:An Innovative Multilingual Approach for Social Media reviews
收藏 引用
Computers, Materials & Continua 2024年 第5期79卷 2771-2793页
作者: Zohaib ahmad Khan Yuanqing Xia Ahmed Khan Muhammad Sadiq Mahmood Alam Fuad AAwwad Emad A.A.Ismail School of Automation Beijing Institute of TechnologyBeijing100081China Department of Computer Science and Technology University of Science and Technology BannuKPKBannu28100Pakistan School of Computer Science and Engineering Central South UniversityChangsha410083China Department of Quantitative Analysis College of Business AdministrationKing Saud UniversityP.O.Box 71115Riyadh11587Saudi Arabia
Sentiment analysis is becoming increasingly important in today’s digital age, with social media being a significantsource of user-generated content. The development of sentiment lexicons that can support languages ot... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Automatic Finding of Brain-Tumour Group Using CNN Segmentation and Moth-Flame-Algorithm,Selected Deep and Handcrafted Features
收藏 引用
Computers, Materials & Continua 2024年 第5期79卷 2585-2608页
作者: Imad Saud Al Naimi Syed Alwee Aljunid Syed Junid Muhammad lmran ahmad K.Suresh Manic Faculty of Electronic Engineering Technology University Malaysia Perils(UniMAP)Pauh Putra CampusArauPerlis02600Malaysia Department of Electrical and Communication Engineering National University of Science and TechnologyAL HailAL Seeb130Sultanate of Oman Department of research and Innovation Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)ChennaiTamiNadu602105India
Augmentation of abnormal cells in the brain causes brain tumor(BT),and early screening and treatmentwill reduce its harshness in ***’s clinical level screening is usually performed with Magnetic resonance Imaging(MrI... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论