咨询与建议

限定检索结果

文献类型

  • 83,204 篇 期刊文献
  • 5,796 篇 会议
  • 2,680 册 图书
  • 83 篇 学位论文
  • 13 篇 报纸

馆藏范围

  • 90,525 篇 电子文献
  • 1,300 种 纸本馆藏

日期分布

学科分类号

  • 36,467 篇 医学
    • 29,001 篇 临床医学
    • 4,209 篇 医学技术(可授医学...
    • 2,862 篇 基础医学(可授医学...
    • 2,776 篇 中西医结合
    • 2,135 篇 公共卫生与预防医...
    • 1,790 篇 药学(可授医学、理...
  • 30,927 篇 工学
    • 6,141 篇 材料科学与工程(可...
    • 3,767 篇 化学工程与技术
    • 3,692 篇 生物医学工程(可授...
    • 2,400 篇 电子科学与技术(可...
    • 2,129 篇 计算机科学与技术...
    • 1,933 篇 机械工程
    • 1,450 篇 动力工程及工程热...
    • 1,321 篇 仪器科学与技术
    • 1,237 篇 地质资源与地质工...
    • 1,090 篇 力学(可授工学、理...
    • 1,055 篇 光学工程
    • 1,023 篇 控制科学与工程
  • 15,551 篇 理学
    • 2,935 篇 化学
    • 2,897 篇 物理学
    • 2,856 篇 数学
    • 2,157 篇 生物学
    • 1,353 篇 地质学
  • 6,702 篇 农学
    • 1,689 篇 作物学
    • 1,211 篇 畜牧学
    • 1,120 篇 农业资源与环境
  • 3,954 篇 管理学
    • 1,746 篇 管理科学与工程(可...
    • 1,222 篇 公共管理
  • 2,791 篇 经济学
    • 2,349 篇 应用经济学
  • 2,178 篇 教育学
    • 1,451 篇 教育学
  • 1,945 篇 法学
  • 1,335 篇 文学
  • 456 篇 历史学
  • 454 篇 艺术学
  • 409 篇 哲学
  • 148 篇 军事学

主题

  • 821 篇 治疗
  • 805 篇 ct
  • 669 篇 mri
  • 514 篇 病人
  • 501 篇 诊断
  • 451 篇 患者
  • 432 篇 of
  • 403 篇 儿童
  • 368 篇 美国
  • 342 篇 mr
  • 320 篇 and
  • 295 篇 中国
  • 225 篇 cancer
  • 217 篇 analysis
  • 145 篇 energy
  • 136 篇 microstructure
  • 124 篇 model
  • 122 篇 印度
  • 116 篇 treatment
  • 115 篇 disease

机构

  • 172 篇 四川省人民医院
  • 162 篇 上海第二医科大学...
  • 147 篇 北京大学
  • 109 篇 中国人民大学
  • 104 篇 中国人民公安大学
  • 88 篇 清华大学
  • 86 篇 南京大学
  • 83 篇 上海市第一人民医...
  • 78 篇 华中科技大学
  • 77 篇 香港理工大学
  • 69 篇 上海交通大学
  • 68 篇 university of mi...
  • 68 篇 同济大学
  • 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 ...

作者

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

语言

  • 57,115 篇 中文
  • 34,651 篇 英文
  • 2 篇 法文
  • 1 篇 日文
检索条件"作者=a.a. S Wa.el"
91776 条 记 录,以下是71-80 订阅
排序:
A Low Complexity ML-Based Methods for Malware Classification
收藏 引用
Computers, Materials & Continua 2024年 第9期80卷 4833-4857页
作者: Mahmoud E.Farfoura.a.mad Alkhatib Deema Mohammed Alsekait Mohammad Alshinwan sa.a. A.el-Rahman Didi Rosiyadi Diaa sa.a.a.a.d elminaam Cybersecurity Department Al-Zaytoonah University of JordanAmman11733Jordan Department of Computer science and Information Technology Applied CollegePrincess Nourah Bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Faculty of Information Technology Applied Science Private UniversityAmman11931Jordan Computer systems Program-electrical Engineering Department Faculty of Engineering-ShoubraBenha UniversityCairo11629Egypt Research Center for Artificial Intelligence and Cybersecurity Electronics and Informatics OrganizationNational Research and Innovation Agency(BRIN)KST Samaun SamadikunBandung40135Republic of Indonesia Ja.a.a Research Center Jadara UniversityIrbid21110Jordan MEU Research Unit Middle East UniversityAmman11831Jordan
The article describes a new method for malware classification,based on a Machine Learning(ML)model architecture specifically designed for malware detection,enabling real-time and accurate malware *** an innovative fea... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
a.a.ysis of cerium substitution in Co-sr based spinel ferrites for high frequency application
收藏 引用
Journal of Rare Earths 2024年 第9期42卷 1755-1763,I0005页
作者: Laura Khudaysh Inas a.a.med syeda Rabia Ejaz sajjad Ahmad Khan Yasir A.Haleem Mohamed M.Ibrahim Mahmood Ali Hafiz Muhammad Tahir Farid Zeinhom M.el-Bahy Department of Physics Faculty of ScienceJazan UniversityJazan45142Saudi Arabia Department of Chemistry Faculty of ScienceKing Khalid UniversityAbha62224Saudi Arabia Department of Physics The Government Sadiq College Women UniversityBahawalpur63100Pakistan Institute of Physics Khwaja Fareed University of Engineering and Information TechnologyRahim Yar Khan64200Pakistan Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Centre of Excellence in solid state Physics University of the PunjabLahorePakistan Department of Physics Government CollegeTaunsa Sharif32200Pakistan Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City11884CairoEgypt
spinel ferrites exhibit exceptional magnetic properties,making them a distinctive class of magnetic *** sol-gel technique was utilized for the synthesis of spinel ferrites with the chemical formula Co_(0.6)sr_(0.4)Ce_... 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
Extended Deep Learning Algorithm for Improved Brain Tumor Diagnosis system
收藏 引用
Intelligent Automation & soft Computing 2024年 第1期39卷 33-55页
作者: M.Adimoolam K.Maithili N.M.Ba.a.urugan R.Rajkumar s.Leela.a.hy Raju Kanna.a.an Mohd Anul Haq Ilyas Khan elsayed M.Tag el Din Arfat Ahmad Khan Department of Computer Engineering Government Polytechnic CollegeSevvapetTiruvallurTamil Nadu602025India Department of Computer science and Engineering KG Reddy College of Engineering and TechnologyHyderabadTelangana500075India Department of Computer science and Engineering Sri Venkateswara College of EngineeringSriperumbudurChennai602117India Department of Computer science and Engineering Annamalai UniversityChidambaramTamil Nadu608002India Department of Computer science and Engineering Aarupadai Veedu Institute of TechnologyVinayaka Mission Research FoundationPaiyanurTamil Nadu603104India Department of electrical and electronics Engineering Sri Venkateswara College of EngineeringSriperumbudur602117India Department of Computer science College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-Majmaah11952Saudi Arabia electrical Engineering Department Faculty of Engineering&TechnologyFuture University in EgyptNew Cairo11835Egypt Department of Computer science College of ComputingKhon Kaen UniversityKhon Kaen40002Thailand
At present,the prediction of brain tumors is performed using Machine Learning(ML)and Deep Learning(DL)*** various ML and DL algorithms are a.a.ted to predict brain tumors to some range,some concerns still need enhance... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Enhancing fatigue performance of AZ31 magnesium alloy components fabricated by cold metal transfer-based wire arc directed energy deposition through LPB
收藏 引用
Journal of Magnesium and Alloys 2024年 第4期12卷 1638-1662页
作者: shambhu Kumar Manjhi srikanth Bontha.a.s.s.Ba.a. Department of Mechanical Engineering National Institute of Technology KarnatakaSurathkalSrinivasanagarMangaloreKarnataka 575025India
Cold Metal Transfer-Based Wire Arc Directed Energy Deposition(CMT-wa-DED)presents a promising avenue for the rapid fabrication of components crucial to automotive,shipbuilding,and aerospace ***,the susceptibility to f... 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
Rational design of natural leather-based water evaporator for electricity generation and functional applications
收藏 引用
Journal of Energy Chemistry 2024年 第9期96卷 129-144页
作者: Bingyuan Zhang Xiaoyu Guan Qingxin Han Haoxiang Guo sai Zheng Xuhui sun Afnan H.el-Gowily Mohammed a.a.osheasha Yanxia Zhu Motoki Ueda Meng An Haojun Fan Yoshihiro Ito College of Bioresources Chemical and Materials Engineering Key Laboratory of Auxiliary Chemistry and Technology for Chemical IndustryMinistry of EducationShaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and TechnologyShaanxi University of Science&TechnologyXi'an 710021ShaanxiChina Nano Medical Engineering Laboratory RIKEN Cluster for Pioneering Research2-1 HirosawaWako 351-0198SaitamaJapan Key Laboratory of Leather Chemistry and Engineering(sichuan University) Ministry of EducationChengdu 610065SichuanChina College of Mechanical and electrical Engineering Shaanxi University of Science&TechnologyXi'an 710021ShaanxiChina Biochemistry Division Chemistry DepartmentFaculty of ScienceTanta UniversityTanta 31527Egypt
In recent years,water evaporation-induced electricity has attracted a great deal of attention as an emerging green and renewable energy harvesting *** abundant materials have been developed to fabricate hydrovoltaic 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
Long-term monitoring reveals the effect of precipitation and silviculture on Nothofagus regeneration in Northern Pa.a.onia mixed forests
收藏 引用
Ecological Processes 2024年 第2期13卷 103-117页
作者: Georgina sola Camila Mateo Alejandro Dezzotti Paula Marchelli Hernán Attis Beltrán Renato sbrancia Luis Chauchard Marcelo González Pe?alba Martín La.a.Verónica el Mujtar Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Asentamiento Universitario san Martín de los Andes (AUsMA-UNCo) Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB) Instituto Nacional de Tecnología Agropecuaria (INTA) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Departamento de Conservación y Manejo Parque Nacional Lanín- Administración de Parques Nacionales (PNL-APN)
Background Tree regeneration is a key component of resilience because it promotes post-disturbance recovery of forests. Northwestern Pa.a.onia from Argentina is occupied by Nothofagus alpina(Na), N. obliqua(No), a... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Optimizing Grey Wolf Optimization: A Novel Agents’ Positions Updating Technique for Enhanced Efficiency and Performance
收藏 引用
Open Journal of Optimization 2024年 第1期13卷 21-30页
作者: Mahmoud Kha.a. Mohamed el-Gamel Ahmed I. saleh Asmaa H. Rabie a.a.lah el-shenawy Department of Mathematics and Engineering Physics Faculty of Engineering Mansoura University Mansoura Egypt Department of Computers and Control Faculty of Engineering Mansoura University Mansoura Egypt Department of Mathematics Faculty of Science New Mansoura University Mansoura Egypt
Grey Wolf Optimization (GWO) is a nature-inspired metaheuristic algorithm that has gained popularity for solving optimization problems. In GWO, the success of the algorithm heavily relies on the efficient updating of ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Ren-integrable and ren-symmetric integrable systems
收藏 引用
Communications in Theoretical Physics 2024年 第3期76卷 62-69页
作者: s Y Lou school of Physical science and Technology Ningbo UniversityNingbo315211China
A new type of symmetry,ren-symmetry,describing anyon physics and corresponding topological physics,is ***-symmetry is a generalization of super-symmetry which is widely applied in super-symmetric physics such as super... 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
search for production of dark fermion candidates in association with heavy neutral gauge boson decaying to dimuon in proton-proton collisions at√s=8 TeV using CMs open data
收藏 引用
Chinese Physics C 2024年 第4期48卷 6-13页
作者: Y.Mahmoud H.Abdallah M.T.Hussein s.elgammal Centre for theoretical physics The British University in EgyptEgypt Physics Department Faculty of ScienceCairo UniversityEgypt
In this study,we conducted a search for dark matter using a part of the da.a.recorded by the CMs experiment during run-I of the LHC in 2012 with a center of mass energy of 8 TeV and an integrated luminosity of 11.6 fb... 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
AutoRhythmAI: A Hybrid Machine and Deep Learning Approach for Automated Diagnosis of Arrhythmias
收藏 引用
Computers, Materials & Continua 2024年 第2期78卷 2137-2158页
作者: s.Ja.a.thi s.Pra.a.na Devi Department of Computer science and Engineering SRM Institute of Science and Technology-Vadapalani CampusChennaiTamil NaduIndia
In healthcare,the persistent challenge of arrhythmias,a leading cause of global mortality,has sparked extensive research into the automation of detection using machine learning(ML)***,traditional ML and AutoML approac... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论