咨询与建议

限定检索结果

文献类型

  • 5,817 篇 期刊文献
  • 513 篇 学位论文
  • 281 篇 会议
  • 3 册 图书

馆藏范围

  • 6,613 篇 电子文献
  • 1 种 纸本馆藏

日期分布

学科分类号

  • 3,120 篇 工学
    • 614 篇 材料科学与工程(可...
    • 594 篇 计算机科学与技术...
    • 511 篇 化学工程与技术
    • 322 篇 电子科学与技术(可...
    • 286 篇 软件工程
    • 279 篇 机械工程
    • 258 篇 控制科学与工程
    • 229 篇 电气工程
    • 166 篇 仪器科学与技术
    • 154 篇 环境科学与工程(可...
    • 127 篇 动力工程及工程热...
    • 116 篇 地质资源与地质工...
    • 102 篇 信息与通信工程
    • 94 篇 力学(可授工学、理...
  • 1,610 篇 医学
    • 1,248 篇 临床医学
    • 136 篇 中西医结合
    • 110 篇 公共卫生与预防医...
    • 105 篇 中药学(可授医学、...
  • 1,415 篇 理学
    • 364 篇 数学
    • 316 篇 化学
    • 282 篇 物理学
    • 147 篇 生物学
    • 94 篇 生态学
  • 918 篇 农学
    • 343 篇 作物学
    • 168 篇 农业资源与环境
    • 99 篇 兽医学
    • 93 篇 植物保护
    • 87 篇 园艺学
  • 385 篇 管理学
    • 283 篇 管理科学与工程(可...
  • 207 篇 经济学
    • 177 篇 应用经济学
  • 86 篇 文学
  • 68 篇 教育学
  • 51 篇 法学
  • 25 篇 艺术学
  • 10 篇 军事学
  • 7 篇 哲学
  • 2 篇 历史学

主题

  • 146 篇 deep learning
  • 109 篇 pakistan
  • 99 篇 machine learning
  • 76 篇 covid-19
  • 50 篇 yield
  • 48 篇 analysis
  • 37 篇 of
  • 34 篇 cancer
  • 34 篇 system
  • 34 篇 optimization
  • 32 篇 antioxidant
  • 30 篇 internet of thin...
  • 29 篇 transfer learnin...
  • 27 篇 mortality
  • 27 篇 power
  • 26 篇 adsorption
  • 25 篇 method
  • 25 篇 control
  • 25 篇 growth
  • 23 篇 temperature

机构

  • 58 篇 华北电力大学
  • 47 篇 上海交通大学
  • 43 篇 university of ch...
  • 37 篇 东南大学
  • 32 篇 浙江大学
  • 30 篇 department of in...
  • 28 篇 department of co...
  • 27 篇 山东大学
  • 26 篇 大连理工大学
  • 26 篇 department of co...
  • 24 篇 中国科学院大学
  • 24 篇 department of ag...
  • 23 篇 华中农业大学
  • 22 篇 吉林大学
  • 21 篇 department of co...
  • 21 篇 新疆大学
  • 20 篇 department of co...
  • 20 篇 福建农林大学
  • 20 篇 department of co...
  • 20 篇 中国科学技术大学

作者

  • 86 篇 muhammad imran
  • 61 篇 muhammad ali
  • 56 篇 muhammad usman
  • 54 篇 muhammad irfan
  • 52 篇 ali raza
  • 44 篇 muhammad arif
  • 42 篇 yunyoung nam
  • 40 篇 muhammad rafiq
  • 34 篇 muhammad tahir
  • 33 篇 muhammad riaz
  • 30 篇 imran khan
  • 28 篇 muhammad rashid
  • 28 篇 muhammad bilal
  • 28 篇 muhammad attique...
  • 27 篇 seifedine kadry
  • 26 篇 sagheer abbas
  • 25 篇 muhammad hassan
  • 25 篇 muhammad ramzan
  • 24 篇 muhammad adnan
  • 23 篇 muhammad shahid

语言

  • 5,213 篇 英文
  • 1,401 篇 中文
检索条件"作者=muhammad Umer"
6614 条 记 录,以下是1-10 订阅
排序:
Hepatitis C virus prevalence and genotype distribution inPakistan:Comprehensive review of recent data
收藏 引用
World Journal of Gastroenterology 2016年 第4期22卷 1684-1700页
作者: muhammad umer mazhar iqbal Health Biotechnology Division National Institute for Biotechnology and Genetic EngineeringFaisalabad 38000Pakistan
Hepatitis C virus(HCV) is endemic in Pakistan and its burden is expected to increase in coming decades owing mainly to widespread use of unsafe medical procedures. The prevalence of HCV in Pakistan has previously been... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Hydrological response under CMIP6 climate projection in Astore River Basin,Pakistan
收藏 引用
Journal of Mountain Science 2023年 第8期20卷 2263-2281页
作者: Zeshan ALI Mudassar IQBAL Ihsan Ullah KHAN muhammad umer MASOOD muhammad umer muhammad Usama Khan LODHI muhammad Atiq Ur Rehman TARIQ Centre of Excellence in Water Resources Engineering University of Engineering and TechnologyLahore 54890Pakistan International Water Management Institute Lahore 53700Pakistan Department of Civil Engineering University of TokyoTokyo 113-8656Japan College of Engineering IT&EnvironmentCharles Darwin UniversityDarwinNT 0810Australia
Climate change strongly influences the available water resources in a watershed due to direct linkage of atmospheric driving forces and changes in watershed hydrological *** how these climatic changes affect watershed... 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
Dynamical Transmission of Coronavirus Model with Analysis and Simulation
收藏 引用
Computer Modeling in Engineering & Sciences 2021年 第5期127卷 753-769页
作者: muhammad Farman Ali Akgul Aqeel Ahmad Dumitru Baleanu muhammad umer Saleem Department of Mathematics and Statistics University of LahoreLahore54590Pakistan Faculty of Art and Science Department of MathematicsSiirt UniversitySiirt56100Turkey Department of Mathematics Cankaya UniversityAnkara06530Turkey Institute of Space Sciences MagureleR76900Romania Department of Medical Research China Medical UniversityTaichung40402Taiwan Department of Mathematics University of EducationLahore54770Pakistan
COVID-19 acts as a serious challenge to the whole *** data of COVID-19 is collected through media and web sources to analyze and investigate a system of nonlinear ordinary differential equation to understand the outbr... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Influence of Partial Coherent Light on the Transmission Spectrum and Goos-H?nchen Shift in Rydberg Atomic Medium
收藏 引用
Communications in Theoretical Physics 2019年 第3期71卷 281-286页
作者: Dilawar Ali muhammad umer Iftikhar Muqaddar Abbas Ziauddin Quantum Optics Laboratory Department of Physics COMSATS University
A cold atomic medium(Rydberg medium) with cascade configuration under the blockade mechanism is considered. A partial coherent light(PCL) beam is incident on the medium, which makes an angle θ with z-axis. We study t... 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
Customer Prioritization for Medical Supply Chain During COVID-19 Pandemic
收藏 引用
Computers, Materials & Continua 2022年 第1期70卷 59-72页
作者: Iram Mushtaq muhammad umer muhammad Imran Inzamam Mashood Nasir Ghulam muhammad Mohammad Shorfuzzaman Department of Management Sciences Sir Syed CASE Institute of Technology45230IslamabadPakistan Department of Operation&Supply Chain Management NUST Business SchoolNational University of Sciences&Technology45200IslamabadPakistan Department of Computer Science HITEC University TaxilaTaxilaPakistan Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityRiyadhSaudi Arabia Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia
During COVID-19,the escalated demand for various pharmaceutical products with the existing production capacity of pharmaceutical companies has stirred the need to prioritize its customers in order to fulfill their ***... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Epidemiological Analysis of the Coronavirus Disease Outbreak with Random Effects
收藏 引用
Computers, Materials & Continua 2021年 第6期67卷 3215-3227页
作者: muhammad Farman Aqeel Ahmad Ali Akgül muhammad umer Saleem muhammad Naeem Dumitru Baleanu Department of Mathematics and Statistics University of LahorePakistan Department of Mathematics Faculty of Art and ScienceSiirt UniversitySiirt56100Turkey Department of Mathematics University of EducationLahorePakistan Department of Economics and Business Administration University of EducationLahorePakistan Department of Mathematics Cankaya UniversityBalgat06530Turkey Institute of Space Sciences Magurele-BucharestR76900Romania Department of Medical Research China Medical UniversityTaichung40402Taiwan
Today,coronavirus appears as a serious challenge to the whole *** data of coronavirus is collected through media and web sources for the purpose of *** data on COVID-19 are available daily,yet information about the bi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Real-Time Safety Helmet Detection Using Yolov5 at Construction Sites
收藏 引用
Intelligent Automation & Soft Computing 2023年 第4期36卷 911-927页
作者: Kisaezehra muhammad umer Farooq muhammad Aslam Bhutto Abdul Karim Kazi Department of Computer Science and Information Technology NED University of Engineering&TechnologyKarachi75270Pakistan Department of Civil Engineering NED University of Engineering&TechnologyKarachi75270Pakistan
The construction industry has always remained the economic and social backbone of any country in the world where occupational health and safety(OHS)is of prime *** in other developing countries,this industry pays very... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
On Riemann-Type Weighted Fractional Operators and Solutions to Cauchy Problems
收藏 引用
Computer Modeling in Engineering & Sciences 2023年 第7期136卷 901-919页
作者: muhammad Samraiz muhammad umer Thabet Abdeljawad Saima Naheed Gauhar Rahman Kamal Shah Department of Mathematics University of SargodhaP.O.Box 40100Sargodha40100Pakistan Department of Mathematics and Sciences Prince Sultan UniversityP.O.Box 66833Riyadh11586Saudi Arabia Department of Medical Research China Medical UniversityTaichung40402Taiwan Department of Mathematics and Statistics Hazara University MansehraMansehra21300Pakistan Department of Mathematics University of MalakandChakdara Dir(L)KPK18000Pakistan
In this paper,we establish the new forms of Riemann-type fractional integral and derivative *** novel fractional integral operator is proved to be bounded in Lebesgue space and some classical fractional integral and d... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A Deep Learning Approach for Prediction of Protein Secondary Structure
收藏 引用
Computers, Materials & Continua 2022年 第8期72卷 3705-3718页
作者: muhammad Zubair muhammad Kashif Hanif Eatedal Alabdulkreem Yazeed Ghadi muhammad Irfan Khan muhammad umer Sarwar Ayesha Hanif Department of Computer Science Government College UniversityFaisalabadPakistan Department of Computer Science College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia Department of Software Engineering/Computer Science Al Ain UniversityAbu DhabiUnited Arab Emirates
The secondary structure of a protein is critical for establishing a link between the protein primary and tertiary *** this reason,it is important to design methods for accurate protein secondary structure *** of the e... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Optimizing Power Allocation for D2D Communication with URLLC under Rician Fading Channel:A Learning-to-Optimize Approach
收藏 引用
Intelligent Automation & Soft Computing 2023年 第9期37卷 3193-3212页
作者: Owais muhammad Hong Jiang Mushtaq muhammad umer Bilal muhammad Naeem muhammad Ahtsam School of Information Engineering Southwest University of Science and TechnologyMianyang621010China School of Software Engineering Northeastern UniversityShenyang110167China School of Information and Software Engineering University of Electronic Sciences and TechnologyChengdu610000China
To meet the high-performance requirements of fifth-generation(5G)and sixth-generation(6G)wireless networks,in particular,ultra-reliable and low-latency communication(URLLC)is considered to be one of the most important... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论