咨询与建议

限定检索结果

文献类型

  • 93,095 篇 期刊文献
  • 5,806 篇 会议
  • 2,623 册 图书
  • 108 篇 学位论文
  • 13 篇 报纸

馆藏范围

  • 100,447 篇 电子文献
  • 1,246 种 纸本馆藏

日期分布

学科分类号

  • 43,910 篇 医学
    • 35,016 篇 临床医学
    • 4,914 篇 医学技术(可授医学...
    • 4,564 篇 基础医学(可授医学...
    • 3,524 篇 公共卫生与预防医...
    • 3,355 篇 中西医结合
    • 2,395 篇 药学(可授医学、理...
  • 35,982 篇 工学
    • 9,135 篇 材料科学与工程(可...
    • 5,261 篇 化学工程与技术
    • 4,994 篇 生物医学工程(可授...
    • 3,825 篇 计算机科学与技术...
    • 3,820 篇 机械工程
    • 3,298 篇 电子科学与技术(可...
    • 2,823 篇 力学(可授工学、理...
    • 2,654 篇 动力工程及工程热...
    • 2,610 篇 电气工程
    • 2,333 篇 地质资源与地质工...
    • 2,306 篇 环境科学与工程(可...
    • 2,097 篇 冶金工程
    • 1,973 篇 控制科学与工程
    • 1,939 篇 水利工程
  • 23,453 篇 理学
    • 6,494 篇 化学
    • 6,237 篇 物理学
    • 5,178 篇 生物学
    • 4,062 篇 数学
    • 2,206 篇 地质学
    • 2,080 篇 地球物理学
    • 1,983 篇 天文学
  • 7,875 篇 农学
    • 2,640 篇 作物学
  • 4,696 篇 管理学
    • 1,947 篇 管理科学与工程(可...
  • 3,114 篇 教育学
  • 2,934 篇 经济学
    • 2,487 篇 应用经济学
  • 2,723 篇 法学
  • 1,398 篇 文学
  • 540 篇 艺术学
  • 499 篇 历史学
  • 438 篇 哲学
  • 165 篇 军事学

主题

  • 941 篇 治疗
  • 844 篇 ct
  • 678 篇 mri
  • 671 篇 诊断
  • 549 篇 儿童
  • 535 篇 病人
  • 492 篇 患者
  • 450 篇 of
  • 378 篇 美国
  • 371 篇 中国
  • 346 篇 mr
  • 310 篇 and
  • 226 篇 cancer
  • 206 篇 analysis
  • 177 篇 疗效
  • 172 篇 预后
  • 152 篇 大鼠
  • 141 篇 energy
  • 134 篇 应用
  • 126 篇 印度

机构

  • 224 篇 中国人民公安大学
  • 174 篇 四川省人民医院
  • 168 篇 北京大学
  • 166 篇 上海第二医科大学...
  • 140 篇 华中科技大学
  • 121 篇 中国人民大学
  • 99 篇 清华大学
  • 87 篇 浙江省人民医院
  • 85 篇 上海市第一人民医...
  • 82 篇 新疆医科大学
  • 80 篇 四川大学
  • 79 篇 上海交通大学
  • 78 篇 香港理工大学
  • 72 篇 山东大学
  • 70 篇 南京大学
  • 70 篇 复旦大学
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...

作者

  • 209 篇 叶鹏
  • 86 篇 刘莉
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 69 篇 郭俊
  • 61 篇 china
  • 60 篇 mohamed s. el na...
  • 59 篇 朱国栋
  • 58 篇 p.de jong
  • 48 篇 唐光健
  • 43 篇 王铮
  • 42 篇 general administ...
  • 40 篇 people’s bank of...
  • 35 篇 李长根
  • 30 篇 v.i.belousov
  • 28 篇 陈瑜
  • 28 篇 余英豪
  • 28 篇 崔荣

语言

  • 65,203 篇 中文
  • 36,405 篇 英文
  • 18 篇 其他
  • 2 篇 法文
  • 1 篇 德文
  • 1 篇 日文
检索条件"作者=othman S.Al-Heety"
101645 条 记 录,以下是21-30 订阅
排序:
spatio-temporal coupled mode theory for nonlocal metasurfaces
收藏 引用
Light(science & Applications) 2024年 第2期13卷 267-282页
作者: Adam Overvig sander A.Mann Andrea alù Photonics Initiative Advanced Science Research CenterCity University of New YorkNew YorkNY10031USA Physics Program Graduate Center of the City University of New YorkNew YorkNY10016USA
Diffractive nonlocal metasurfaces have recently opened a broad range of exciting developments in nanophotonics research and applications,leveraging spatially extended—yet locally patterned—resonant modes to control ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A state-of-the-art review on geothermal energy exploration in Morocco: Current status and prospects
收藏 引用
Deep Underground science and Engineering 2024年 第3期3卷 302-316页
作者: Redouane Meryem Khalis Hind Haissen Faouziya sadki othman Berkat N.Eddine Raji Mohammed Faculty of sciences Ben M'sick CasablancaMorocco Faculty of sciences Dhar El Mahraz FezMorocco National Office of Hydrocarbons and Mines RabatMorocco
In the last few decades, addressing the global challenge of implementation of strategies for renewable energy and energy efficiency has become ***, since 2009, has made a steadfast commitment to sustainability, with a... 详细信息
来源: 维普期刊数据库 维普期刊数据库 博看期刊 同方期刊数据库 同方期刊数据库 评论
synchronization Phenomena Investigation of a New Nonlinear Dynamical system 4D by Gardano’s and Lyapunov’s Methods
收藏 引用
Computers, Materials & Continua 2021年 第3期66卷 3311-3327页
作者: Abdulsattar Abdullah Hamad Ahmed s.al-Obeidi Enas H.al-Taiy Osamah Ibrahim Khalaf Dac-Nhuong Le school of Mathematics Madurai Kamaraj UniversityMadurai625021India specialty of Mathematics Gifted School of NinevehMosulIraq al-Nahrain University Baghdad70030Iraq Institute of Research and Development Duy Tan UniversityDanang550000Vietnam Faculty of Information Technology Duy Tan UniversityDanang550000Vietnam
synchronization is one of the most important characteristics of dynamic *** this paper,the authors obtained results for the nonlinear systems controller for the custom synchronization of two 4D *** findings have allow... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Dust particle surface potential in an argonhelium plasma using the(r,q)-distribution function
收藏 引用
Communications in Theoretical Physics 2024年 第9期76卷 143-150页
作者: Bahaaudin M Raffah A A Abid Abdullah Khan Amin Esmaeili Yas.al-Hadeethi M N s Qureshi Department of Physics Faculty of Sciences King Abdulaziz University Lithography in Devices Fabrication and Development Research Group Deanship of Scientific ResearchKing Abdulaziz University Joint Laboratory of Plasma Application Technology Institute of Advanced Technology University of Science and Technology of China CAs Key Laboratory of Geospace Environment University of Science and Technology of China Department of Physics Zhejiang Normal University Department of Physics Graduate School of Science Tokyo Metropolitan University Department of Physics GC University
In this paper, the dust particle surface potential for argon-helium plasma is evaluated analytically and numerically in the context of negatively charged dust particles by employing a power-law(r, q)-distribution func... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Cloud Datacenter selection Using service Broker Policies:A survey
收藏 引用
Computer Modeling in Engineering & sciences 2024年 第4期139卷 1-41页
作者: salam al-E’mari Yousef sanjalawe Ahmad al-Daraiseh Mohammad Bany Taha Mohammad aladaileh Department of Information security Faculty of ITUniversity of PetraAmman11196Jordan Department of Cybersecurity School of ITAmerican University of Madaba(AUM)Amman11821Jordan Department of Computer science School of ITAmerican University of Madaba(AUM)Amman11821Jordan Department of Data science and Artificial Intelligence School of ITAmerican University of Madaba(AUM)Amman11821Jordan
Amid the landscape of Cloud Computing(CC),the Cloud Datacenter(DC)stands as a conglomerate of physical servers,whose performance can be hindered by bottlenecks within the realm of proliferating CC services.A linchpin ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Assessment of plant diversity of endemic species of the saharo-Arabian region in Egypt
收藏 引用
Journal of Arid Land 2024年 第7期16卷 1000-1021,I0002-I0044页
作者: Asmaa s ABO HATAB Yassin M al-sODANY Kamal H s.alTOUT soliman A HAROUN Mohamed M EL-KHalAFY Botany and Microbiology Department Faculty of ScienceKafrelsheikh UniversityKafrelsheikh 33511Egypt Botany Department Faculty of ScienceTanta UniversityTanta 31527Egypt
savanna, semi-deserts, and hot deserts characterize the saharo-Arabian region, which includes Morocco, Mauretania, algeria, Tunisia, Libya, Egypt, Palestine, Kuwait, saudi Arabia, Qatar, Bahrain, the United Arab Emira... 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
Interaction between inflammatory bowel disease,physical activity,and myokines:Assessment of serum irisin levels
收藏 引用
World Journal of Gastroenterology 2024年 第22期30卷 2923-2926页
作者: Marwan sM al-Nimer Department of Therapeutics and Clinical Pharmacology College of MedicineUniversity of DiyalaBaqubah 32001Iraq
Inflammatory bowel disease(IBD),including Crohn’s disease and ulcerative colitis,showed a wide spectrum of intestinal and extra-intestinal manifestations,which rendered the patients physically inactive and impaired t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Fostering firm innovativeness:Understanding the sequential relationships between human resource practices,psychological empowerment,innovative work behavior,and firm innovative capability
收藏 引用
International Journal of Innovation studies 2024年 第1期8卷 76-91页
作者: Ruba sami al Daboub Amro al-Madadha Ahmad samed al-Adwan Business Administration Department Princess Sumaya University for TechnologyAmmanJordan Department of Business Technology Business SchoolHourani Center for Applied Scientific ResearchAl-Ahliyya Amman UniversityAmmanJordan
This study investigated the relationships between human resource(HR)practices,employee psychological empowerment,employee innovative work behavior,and firm innovation capability in the context of the Information and C... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Efficient Communication in Wireless sensor Networks Using Optimized Energy Efficient Engroove Leach Clustering Protocol
收藏 引用
Tsinghua science and Technology 2024年 第4期29卷 985-1001页
作者: N.Meenakshi sultan Ahmad A.V.Prabu J.Nageswara Rao Nashwan Adnan othman Hikmat A.M.Abdeljaber R.sekar Jabeen Nazeer sRM Institute of science and Technology KattankulathurChennai 603203India Department of Computer science College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAlkharj 11942Saudi Arabia University Center for Research and Development(UCRD) Department of Computer Science and EngineeringChandigarh UniversityGharuanMohali 140413India Department of ECE Koneru Lakshmaiah Education FoundationVaddeswaramGuntur 522502India Department of Computer science and Engineering Lakireddy Balireddy College of Engineering(A)NTR District 521230India Department of Computer Engineering College of EngineeringKnowledge UniversityErbil 44001Iraq Department of Computer science Faculty of Information TechnologyApplied Science Private UniversityAmman 11937Jordan Department of Electronics and Communication Engineering(ECE) School of EngineeringPresidency UniversityBangalore 834001India
The Wireless sensor Network(WsN)is a network that is constructed in regions that are inaccessible to human *** widespread deployment of wireless micro sensors will make it possible to conduct accurate environmental mo... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Interplay of serum biomarkers bilirubin andγ-glutamyltranspeptidase in predicting cardiovascular complications in type-2 diabetes mellitus
收藏 引用
World Journal of Diabetes 2024年 第6期15卷 1074-1078页
作者: Ebtesam Abdullah al-suhaimi Abdullah Ahmed al-Rubaish scientific Research and Innovation Imam Abdulrahman Bin Faisal UniversityDammam 31441Saudi Arabia King Abdulaziz and his Companions Foundation for Giftedness and Creativity“Mawhiba” Riyadh 11372Saudi Arabia College of Medicine Imam Abdulrahman Bin Faisal UniversityDammam 31441Saudi Arabia
This editorial synthesizes insights from a series of studies examining the interplay between metabolic and oxidative stress biomarkers in cardiovascular disease(CVD),focusing particularly on type-2 diabetes mellitus(T... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论