咨询与建议

限定检索结果

文献类型

  • 88,281 篇 期刊文献
  • 5,178 篇 会议
  • 3,823 册 图书
  • 139 篇 学位论文
  • 16 篇 报纸
  • 2 篇 多媒体

馆藏范围

  • 95,805 篇 电子文献
  • 1,711 种 纸本馆藏

日期分布

学科分类号

  • 39,265 篇 工学
    • 10,423 篇 材料科学与工程(可...
    • 5,514 篇 化学工程与技术
    • 4,926 篇 生物医学工程(可授...
    • 4,499 篇 机械工程
    • 3,673 篇 计算机科学与技术...
    • 3,562 篇 电子科学与技术(可...
    • 3,228 篇 力学(可授工学、理...
    • 3,094 篇 动力工程及工程热...
    • 3,068 篇 电气工程
    • 2,790 篇 地质资源与地质工...
    • 2,725 篇 环境科学与工程(可...
    • 2,361 篇 冶金工程
    • 2,297 篇 水利工程
    • 2,050 篇 控制科学与工程
    • 1,942 篇 建筑学
  • 35,014 篇 医学
    • 29,634 篇 临床医学
    • 4,382 篇 基础医学(可授医学...
    • 4,376 篇 医学技术(可授医学...
    • 2,856 篇 公共卫生与预防医...
    • 2,507 篇 中西医结合
  • 25,542 篇 理学
    • 7,070 篇 化学
    • 6,919 篇 物理学
    • 5,826 篇 生物学
    • 4,007 篇 数学
    • 2,727 篇 地质学
    • 2,621 篇 地球物理学
    • 2,487 篇 天文学
  • 9,162 篇 农学
    • 3,004 篇 作物学
    • 2,147 篇 畜牧学
  • 3,897 篇 管理学
  • 2,479 篇 经济学
    • 2,163 篇 应用经济学
  • 2,383 篇 教育学
  • 1,678 篇 法学
  • 1,363 篇 文学
  • 634 篇 艺术学
  • 561 篇 历史学
  • 476 篇 哲学
  • 170 篇 军事学

主题

  • 969 篇 ct
  • 846 篇 mri
  • 582 篇 美国
  • 533 篇 病人
  • 514 篇 患者
  • 432 篇 mr
  • 419 篇 and
  • 407 篇 of
  • 324 篇 cancer
  • 264 篇 analysis
  • 248 篇 北美洲
  • 226 篇 治疗
  • 194 篇 美利坚合众国
  • 165 篇 disease
  • 164 篇 诊断
  • 156 篇 儿童
  • 149 篇 water
  • 136 篇 应用
  • 132 篇 energy
  • 127 篇 acid

机构

  • 167 篇 北京大学
  • 133 篇 同济医科大学附属...
  • 102 篇 清华大学
  • 83 篇 浙江大学
  • 71 篇 华中科技大学同济...
  • 70 篇 university of ch...
  • 68 篇 university of mi...
  • 67 篇 美国加州大学
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 南京大学
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...
  • 66 篇 compas group ins...
  • 65 篇 rudolf peierls c...
  • 63 篇 nstitucio catala...
  • 63 篇 department of ph...

作者

  • 238 篇 叶鹏
  • 232 篇 m.k
  • 113 篇 刘莉
  • 112 篇 郭俊
  • 86 篇 m.white
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 76 篇 朱国栋
  • 74 篇 唐光健
  • 51 篇 p.de jong
  • 49 篇 王铮
  • 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 y.hatsukawa
  • 37 篇 m.santosh

语言

  • 58,214 篇 中文
  • 39,187 篇 英文
  • 21 篇 其他
  • 2 篇 日文
检索条件"作者=christop. MÜLLER"
97439 条 记 录,以下是91-100 订阅
排序:
multichannel coupling induced topological insulating phases with full multimerization
收藏 引用
Photonics Research 2024年 第3期12卷 491-498页
作者: JUN LI YAPING YANG C-m.HU mOE Key Laboratory of Advanced micro-Structured materials School of Physics Science and EngineeringTongji UniversityShanghai 200092China Department of Physics and Astronomy University of ManitobaWinnipegManitoba R3T 2N2Canada
We propose and experimentally realize a class of quasi-one-dimensional topological lattices whose unit cells are constructed by coupled multiple identical resonators,with uniform hopping and inversion *** the presence... 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
Explainable AI-Based DDoS Attacks Classification Using Deep Transfer Learning
收藏 引用
Computers, materials and Continua 2024年 第3期80卷 3785-3802页
作者: Alzu’bi A. Albashayreh A. Abuarqoub A. Alfawair m.A.m. Department of Computer Science Jordan University of Science and Technology Irbid 22110 Jordan Department of Computer Science The University of Jordan Amman 11942 Jordan Cardiff School of Technologies Cardiff Metropolitan University Cardiff CF5 2YB United Kingdom Prince Abdullah bin Ghazi Faculty of Information and Communication Technology Al-Balqa Applied University Salt 19117 Jordan
In the era of the Internet of Things (IoT), the proliferation of connected devices has raised security concerns, increasing the risk of intrusions into diverse systems. Despite the convenience and efficiency offered b... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Enhancing Critical Path Problem in Neutrosophic Environment Using Python
收藏 引用
Computer modeling in Engineering & Sciences 2024年 第9期140卷 2957-2976页
作者: m.Navya Pratyusha Ranjan Kumar VIT-AP University InavoluBesides AP SecretariatAmaravati APIndia
In the real world,one of the most common problems in project management is the unpredictability of resources and *** efficient way to resolve uncertainty problems and overcome such obstacles is through an extended fuz... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Sodium nitroprusside as a signal molecule for up-regulating membrane characteristics, antioxidant defense system to improve flax productivity under water stress
收藏 引用
Oil Crop Science 2024年 第3期9卷 160-169页
作者: Al-Ashkar N.m. Bakry B.A. El-Bassiouny H.m.S. Abdallah m.m.S. Sadak m.S. Botany Department Agricultural and Biological Research Institute National Research Centre 33 El Bohouth Street P.O. 12622 Dokki Giza Egypt Field Crops Research Department Agricultural and Biological Research Institute National Research Centre 33 El Bohouth Street P.O. 12622 Dokki Giza Egypt
Water stress is a critical environmental adversity that significantly impacts the growth, development, and yield of flax plants. In this study, flax seeds were cultivated under different water irrigation requirements ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Actin(g) toward a revised understanding of the role of cytoskeletal dynamics in neuronal bioenergetics
收藏 引用
Neural Regeneration Research 2024年 第10期19卷 2109-2110页
作者: Sabrina m.Holland Gianluca Gallo Department of Neural Sciences Shriners Pediatric Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPAUSA
Neurons are energy-demanding *** in energy metabolism can quickly interrupt neuronal function,leading to cell death and *** instance,ischemia rapidly depletes adenosine triphosphate(ATP)thereby disrupting energy-depen... 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
Autophagy in neuroinflammation after traumatic brain injury
收藏 引用
Neural Regeneration Research 2024年 第5期19卷 951-952页
作者: Chinmoy Sarkar marta m.Lipinski Shock Trauma and Anesthesiology Research(STAR)CenterDepartment of AnesthesiologyUniversity of Maryland School of MedicineBaltimoreMDUSA Department of Anatomy and Neurobiology University of Maryland School of MedicineBaltimoreMDUSA
Traumatic brain injury(TBI)is an acquired injury of the brain caused by the impact of external forces on the brain(maas et al.,2008).It is a major cause of death and disability among people of all ages(maas et al.,200... 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
Effect of a cervical collar on optic nerve sheath diameter in trauma patients
收藏 引用
World Journal of Emergency medicine 2024年 第2期15卷 126-130页
作者: mümin murat Yazici Ozcan Yavasi Department of Emergency medicine Recep Tayyip Erdogan University Training and Research HospitalRize 53020Türkiye
BACKGROUND:As advocated in advanced trauma life support and prehospital trauma life support protocols,cervical immobilization is applied until cervical spine injury is *** study aimed to show the difference in optic n... 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 Upper Jurassic sediments,marib-Shabwa Basin,Yemen:Lithofacies aspects and sequence stratigraphic analysis
收藏 引用
Energy Geoscience 2024年 第1期5卷 342-357页
作者: mohammed Albaroot mohamed m.Elhossainy Nabil m.Al-Areeq Emad A.Abdullah Abdelhamid m.Salman Department of Applied Geology Faculty of Science and EducationUniversity of Saba RegionMaribYemen Department of Geology Faculty of ScienceKafrelsheikh UniversityKafrelsheikh33516Egypt Department of Geology and Environment Faculty of Applied SciencesThamar UniversityYemen Department of mineral Developing and Oil&Gas Engineering Academy of EngineeringPeoples’Friendship University of Russia(RUDN University)Moscow117198Russia Department of Geology Faculty of ScienceAssiut UniversityAssiut71516Egypt
The present study is devoted to understanding the evolution of the Upper Jurassic Sab'atayn Formation in the marib-Shabwa Basin,Yemen,through a sequence stratigraphic analysis based on integrating datasets of sediment... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
measurement of the pion form factor for m_(ππ)~2 between 0.1 and 0.85 GeV^2 with the KLOE detector
收藏 引用
Chinese Physics C 2010年 第6期34卷 686-691页
作者: Stefan E.müller Institut für Kernphysik Johannes Gutenberg-Universitt
The KLOE experiment at the φ-factory DAФPNE has measured the pion form factor in the range between 0.1 〈 mππ^2 〈 0.85 GeV^2 using events taken at √s = 1 GeV with a photon emitted at large polar angles in the in... 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
Comprehensive review of hepatocellular carcinoma with portal vein tumor thrombus:State of art and future perspectives
收藏 引用
Hepatobiliary & Pancreatic Diseases International 2024年 第3期23卷 221-227页
作者: Paschalis Gavriilidis Timothy m Pawlik Daniel Azoulay Department of Surgery Colchester General HospitalTurner RoadColchester CO45JLUK Department of Surgery The Ohio State Wexner Medical CenterJames Comprehensive Cancer CenterColumbusOHUSA Department of Hepato-Biliary and Liver Transplantation surgery Paul Brousse University HospitalParis-Saclay UniversityVillejuif 94800France
Background:Despite advances in the diagnosis of patients with hepatocellular carcinoma(HCC),70%-80%of patients are diagnosed with advanced stage *** vein tumor thrombus(PVTT)is among the most ominous signs of advanced... 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