咨询与建议

限定检索结果

文献类型

  • 91,711 篇 期刊文献
  • 5,302 篇 会议
  • 3,972 册 图书
  • 157 篇 学位论文
  • 16 篇 报纸
  • 2 篇 多媒体

馆藏范围

  • 99,444 篇 电子文献
  • 1,799 种 纸本馆藏

日期分布

学科分类号

  • 36,516 篇 工学
    • 7,227 篇 材料科学与工程(可...
    • 4,262 篇 化学工程与技术
    • 3,902 篇 生物医学工程(可授...
    • 2,612 篇 电子科学与技术(可...
    • 2,502 篇 机械工程
    • 2,027 篇 计算机科学与技术...
    • 1,898 篇 动力工程及工程热...
    • 1,782 篇 地质资源与地质工...
    • 1,425 篇 电气工程
    • 1,405 篇 仪器科学与技术
    • 1,343 篇 水利工程
    • 1,297 篇 力学(可授工学、理...
    • 1,267 篇 环境科学与工程(可...
  • 36,216 篇 医学
    • 29,537 篇 临床医学
    • 4,279 篇 医学技术(可授医学...
    • 3,243 篇 基础医学(可授医学...
    • 2,728 篇 中西医结合
    • 2,340 篇 公共卫生与预防医...
    • 1,706 篇 药学(可授医学、理...
  • 17,535 篇 理学
    • 3,208 篇 物理学
    • 3,138 篇 化学
    • 2,820 篇 数学
    • 2,532 篇 生物学
    • 1,878 篇 地质学
  • 8,552 篇 农学
    • 2,084 篇 作物学
    • 1,827 篇 畜牧学
    • 1,362 篇 农业资源与环境
  • 3,633 篇 管理学
    • 1,530 篇 管理科学与工程(可...
  • 2,489 篇 经济学
    • 2,173 篇 应用经济学
  • 2,080 篇 教育学
    • 1,444 篇 教育学
  • 1,464 篇 法学
  • 1,369 篇 文学
  • 564 篇 艺术学
  • 544 篇 历史学
  • 478 篇 哲学
  • 163 篇 军事学

主题

  • 990 篇 ct
  • 862 篇 mri
  • 591 篇 美国
  • 540 篇 病人
  • 532 篇 患者
  • 434 篇 and
  • 434 篇 mr
  • 432 篇 of
  • 342 篇 cancer
  • 259 篇 治疗
  • 258 篇 analysis
  • 249 篇 北美洲
  • 214 篇 诊断
  • 196 篇 美利坚合众国
  • 185 篇 儿童
  • 167 篇 disease
  • 154 篇 应用
  • 146 篇 water
  • 134 篇 energy
  • 132 篇 microstructure

机构

  • 174 篇 北京大学
  • 149 篇 同济医科大学附属...
  • 112 篇 华中科技大学
  • 111 篇 清华大学
  • 100 篇 华中科技大学同济...
  • 94 篇 浙江大学
  • 77 篇 university of ch...
  • 68 篇 美国加州大学
  • 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 compas group ins...
  • 66 篇 rudolf peierls c...
  • 63 篇 中国地质大学
  • 62 篇 nstitucio catala...

作者

  • 239 篇 叶鹏
  • 232 篇 m.k
  • 116 篇 郭俊
  • 114 篇 刘莉
  • 86 篇 m.white
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 79 篇 朱国栋
  • 74 篇 唐光健
  • 50 篇 王铮
  • 50 篇 p.de jong
  • 49 篇 刘凯
  • 45 篇 余英豪
  • 41 篇 linda m.chung
  • 39 篇 郭战宏
  • 38 篇 graul a i
  • 38 篇 崔荣
  • 37 篇 李长根
  • 37 篇 y.hatsukawa

语言

  • 62,276 篇 中文
  • 38,871 篇 英文
  • 2 篇 日文
  • 2 篇 其他
  • 1 篇 法文
检索条件"作者=f.M. Al-Marzouki"
101160 条 记 录,以下是161-170 订阅
排序:
QCD sum rule study of J^(P)=1^(±)exotic states with two heavy quarks in the molecular picture
收藏 引用
Chinese Physics C 2024年 第6期48卷 31-37页
作者: T.m.aliev S.Bilmis m.Savcı Department of Physics Middle East Technical UniversityAnkara06800Turkey TUBITAK ULAKBIm Ankara06510Turkey
In this study,the spectroscopic parameters of exotic molecular states composed of.m.sons containing two heavy quarks(scalar-axial and pseudoscalar-axial meson combinations)are investigated within the QCD sum *** findi... 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
Analysis of strong decays of SU(3)partners ofΩ(2012)baryon
收藏 引用
Chinese Physics C 2024年 第8期48卷 34-41页
作者: T.m.aliev S.Bilmis m.Savci Department of Physics Middle East Technical UniversityAnkara 06800Turkey TUBITAK ULAKBIm Ankara 06510Turkey
We estimate the coupling constants and decay widths of the SU(3)partners of theΩ(2012)hyperon,as discovered by the BELLE Collaboration,using the distribution amplitudes of the octet baryons within the light cone sum ... 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
Low-Density microplastics in Recreational Parks of al Ain, United Arab Emirates: Abundance, Composition, and Potential Effects on Soil Health
收藏 引用
Journal of Environmental Protection 2024年 第2期15卷 109-123页
作者: Rener De Jesus Ahmed Abuibaid Bassam al-Hindawi Ruwaya alKendi Department of Biology College of Science United Arab Emirates University Al Ain UAE Department of Chemistry College of Science United Arab Emirates University Al Ain UAE
microplastics (mPs) have been an emerging concern due to their harmful effects on the ecosystem and are ubiquitous in various habitats, from marine to terrestrial environments. However, studies on the presence of.m.s ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effects of Supplemental Glutamine and Lysine on Growth Performance of Broiler Chickens
收藏 引用
Open Journal of Animal Sciences 2024年 第2期14卷 101-122页
作者: ali f. alsogair Naif.m. alhawiti Samuel N. Nahashon National Center for Wildlife Riyadh KSA California Animal Health and food Safety Laboratory University of California Davis Davis USA Department of Agricultural and Environmental Sciences College of Agriculture Tennessee State University Nashville Tennessee USA
The optimum levels of Lysine and Glutamine needed for growth performance and maintenance of the chicken broilers were evaluated in a randomized 3 × 4 factorial arrangement of dietary treatments. The battery cages mea... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Boundary-layer non-Newtonian flow over vertical plate in porous medium saturated with nanofluid
收藏 引用
Applied mathematics and mechanics(English Edition) 2011年 第12期32卷 1577-1586页
作者: f.m. HADY f. S. IBRAHIm S. m. ABDEL-GAIED m. R. EID Department of.m.thematics Faculty of Science Assiut University Assiut 71516 Egypt Department of Science and mathematics Faculty of Education Assiut University The New Valley 72111 Egypt
The free convective heat transfer to the power-law non-Newtonian flow from a vertical plate in a porous medium saturated with nanofluid under laminar conditions is investigated. It is considered that the non-Newtonian... 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
Pile foundation in alternate layered liquefiable and non-liquefiable soil deposits subjected to earthquake loading
收藏 引用
Earthquake Engineering and Engineering Vibration 2024年 第2期23卷 359-376页
作者: Praveen Huded m Suresh R Dash LEA Associates South East Asia Pvt.Ltd. New Delhi 110044India Indian Institute of Technology Bhubaneswar Khurda 752050India
Pile foundations are still the preferred foundation system for high-rise structures in earthquake-prone *** foundations have experienced failures in past earthquakes due to *** on pile foundations in liquefiable soils... 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
magnetic,dielectric and electrical modulus of Ce^(3+) doped cobalt-magnesium ferrite nanoparticles
收藏 引用
Journal of Rare Earths 2024年 第2期42卷 373-382,I0005页
作者: N.m.Basfer Hanaa almaghamsi Department of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Department College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi
In this work,the magnetic,dielectric properties and electric modulus of Ce^(3+) substituted cobaltmagnesium(Co_(0.7)mg_(0.3)Ce_(x)fe_(2-x)O_4)(labeled as CmCf) ferrite nanoparticles were investigated in *** magnetizat... 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
fractional diffusion-advection equation with resetting:An analytical approach
收藏 引用
Journal of Ocean Engineering and Science 2024年 第3期9卷 216-221页
作者: Ashraf.m.Tawfik m.A.Abdou Theoretical Physics Research Group Physics DepartmentFaculty of ScienceMansoura UniversityMansoura 35516Egypt Physics Department College of ScienceUniversity of BishaPO Box 344Bisha 61922Kingdom of Saudi Arabia
In this article,the fractional diffusion-advection equation with resetting is introduced to promote the theory of anomalous *** fractional equation describes a particle’s non-diffusive motion performing a random walk... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
An Adaptive Hate Speech Detection Approach Using Neutrosophic Neural Networks for Social media forensics
收藏 引用
Computers, materials & Continua 2024年 第4期79卷 243-262页
作者: Yasmine m.Ibrahim Reem Essameldin Saad m.Darwish Department of Information Technology Institute of Graduate Studies and ResearchAlexandria UniversityAlexandria21526Egypt faculty of Computers and Information Technology Egyptian E-Learning University(EELU)Giza12611Egypt faculty of Computers and Data Science Alexandria UniversityAlexandria21554Egypt
Detecting hate speech automatically in social media forensics has emerged as a highly challenging task due tothe complex nature of language used in such platforms. Currently, several methods exist for classifying hate... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
frequency of Null Phenotypes of Glutathione S-Transferase m1 and T1 among the Populations of Tabuk (Northwestern Part of Saudi Arabia)
收藏 引用
Open Journal of Genetics 2016年 第1期6卷 9-18页
作者: Rashid mir Abdullah Yahya Hamadi Abu-Duhier f.m. Prince fahd Bin Sultan Research Chair Division of Cancer Molecular Genetics Department of Medical Lab Technology Faculty of Applied Medical Sciences University of Tabuk Kingdom of Saudi Arabia
Background: The variability in the distribution of the null phenotypes of GSTm1 and GSTT1, due to total or partial gene deletion resulting in the lack of the active enzyme, has been reported in different populations, ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论