咨询与建议

限定检索结果

文献类型

  • 86,688 篇 期刊文献
  • 5,168 篇 会议
  • 3,903 册 图书
  • 140 篇 学位论文
  • 16 篇 报纸
  • 2 篇 多媒体

馆藏范围

  • 94,201 篇 电子文献
  • 1,794 种 纸本馆藏

日期分布

学科分类号

  • 35,016 篇 工学
    • 6,967 篇 材料科学与工程(可...
    • 4,059 篇 化学工程与技术
    • 3,743 篇 生物医学工程(可授...
    • 2,513 篇 电子科学与技术(可...
    • 2,416 篇 机械工程
    • 1,992 篇 计算机科学与技术...
    • 1,837 篇 动力工程及工程热...
    • 1,663 篇 地质资源与地质工...
    • 1,387 篇 电气工程
    • 1,347 篇 仪器科学与技术
    • 1,269 篇 力学(可授工学、理...
    • 1,263 篇 水利工程
    • 1,213 篇 环境科学与工程(可...
  • 33,299 篇 医学
    • 27,531 篇 临床医学
    • 4,066 篇 医学技术(可授医学...
    • 2,931 篇 基础医学(可授医学...
    • 2,436 篇 中西医结合
    • 1,992 篇 公共卫生与预防医...
    • 1,492 篇 药学(可授医学、理...
  • 16,760 篇 理学
    • 3,127 篇 物理学
    • 3,003 篇 化学
    • 2,741 篇 数学
    • 2,356 篇 生物学
    • 1,793 篇 地质学
  • 8,123 篇 农学
    • 1,981 篇 作物学
    • 1,769 篇 畜牧学
    • 1,288 篇 农业资源与环境
  • 3,526 篇 管理学
    • 1,494 篇 管理科学与工程(可...
  • 2,426 篇 经济学
    • 2,116 篇 应用经济学
  • 1,980 篇 教育学
    • 1,414 篇 教育学
  • 1,439 篇 法学
  • 1,348 篇 文学
  • 556 篇 艺术学
  • 527 篇 历史学
  • 473 篇 哲学
  • 158 篇 军事学

主题

  • 968 篇 ct
  • 845 篇 mri
  • 585 篇 美国
  • 533 篇 病人
  • 514 篇 患者
  • 432 篇 mr
  • 420 篇 and
  • 407 篇 of
  • 327 篇 cancer
  • 259 篇 analysis
  • 247 篇 北美洲
  • 226 篇 治疗
  • 194 篇 美利坚合众国
  • 164 篇 诊断
  • 163 篇 disease
  • 155 篇 儿童
  • 141 篇 water
  • 137 篇 应用
  • 129 篇 energy
  • 124 篇 acid

机构

  • 167 篇 北京大学
  • 133 篇 同济医科大学附属...
  • 100 篇 清华大学
  • 80 篇 浙江大学
  • 74 篇 university of ch...
  • 71 篇 华中科技大学同济...
  • 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 institut fur the...
  • 66 篇 national researc...
  • 66 篇 dept.of physics ...
  • 66 篇 compas group ins...
  • 66 篇 rudolf peierls c...
  • 65 篇 nstitucio catala...
  • 65 篇 南京大学
  • 63 篇 department of ph...

作者

  • 238 篇 叶鹏
  • 232 篇 m.k
  • 113 篇 刘莉
  • 110 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
  • 55 篇 p.de jong
  • 49 篇 刘凯
  • 48 篇 王铮
  • 45 篇 余英豪
  • 41 篇 linda m.chung
  • 39 篇 崔荣
  • 39 篇 郭战宏
  • 38 篇 graul a i
  • 37 篇 y.hatsukawa
  • 37 篇 m.santosh

语言

  • 58,374 篇 中文
  • 37,530 篇 英文
  • 2 篇 日文
  • 2 篇 其他
  • 1 篇 法文
检索条件"作者=M.a.Lis."
95917 条 记 录,以下是71-80 订阅
排序:
Large magnetocaloric effect and magnetic properties of EuRhO3
收藏 引用
Journal of Rare Earths 2024年 第9期42卷 1724-1729页
作者: m.Lassri m.Sajieddine A.Elouafi A.El Hachmi S.El Ouahbi R.moubah Laboratory of Energy and materials Engineering (LGEm) University of Sultan Moulay SlimaneFaculty of Science and Technology (FST) Institute of Applied Physics (IAP)-School of Industrial management (EmINES) Mohammed Ⅵ Polytechnic University National School of Applied Sciences (ENSA) University of Sultan Moulay Slimane Laboratory of mechanics Production and Industrial Engineering (LMPGI)Higher School of Technology of Casablanca (ESTC)University of Hassan Ⅱ Casablanca Laboratory of Radiation on matter and Instrumentation (LRmI) Faculty of Science and Technology (FST) SettatHassan Ⅰ University Laboatory of Physics of Advanced materials and Thermic (LPmAT) Faculty of Science Ain Chock (FSAC)University of Hassan Ⅱ Casablanca
We report on the structural,magnetic,and magnetocaloric properties of *** oxidation states of Eu and Rh ions were studied using X-ray photoelectron spectroscopy(XPS).It is found that the Eu ions are mainly in the di... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Lithium:A review of applications,occurrence,exploration,extraction,recycling,analysis,and environmental impact
收藏 引用
Geoscience Frontiers 2024年 第5期15卷 1-46页
作者: V.Balaram m.Santosh m.Satyanarayanan N.Srinivas Harish Gupta CSIR-National Geophysical Research Institute(NGRI) Hyderabad 500007India School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Department of Earth Science University of AdelaideAdelaide SA 5005Australia Department of Environmental Studies GITAM Institute of ScienceGandhi Institute of Technology&Management(GITAM)Visakhapatnam 530045India Department of Civil Engineering Osmania UniversityHyderabad 500007India
The energy transition challenges faced by modern civilization have significantly enhanced the demand for critical metals like lithium resulting in improved methods to explore,extract,and utilize these *** this compreh... 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
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
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
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
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
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
Photoluminescence properties of nanosized strontium-yttrium borate phosphor Sr_3Y_2(BO_3) _4:Eu^(3+) obtained by the sol-gel Pechini method
收藏 引用
Journal of Rare Earths 2011年 第12期29卷 1161-1165页
作者: A.A.Shyichuk S.lis Department of Rare Earth Faculty of ChemistryAdam Mickiewicz Uniwersity
mixed strontium-yttrium borate phosphor Sr3Y2(BO3)4 doped with Eu^3+ ions was obtained by the sol-gel Pechini method. Crystal structure of the synthesized compound was analyzed by X-ray powder diffraction. Optimal ... 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
Background removal from global auroral images:Data-driven dayglow modeling
收藏 引用
Earth and Planetary Physics 2024年 第1期8卷 247-257页
作者: A.Ohma m.madelaire K.m.Laundal J.P.Reistad S.m.Hatch S.Gasparini S.J.Walker Birkeland Centre for Space Science Department of Physics and TechnologyUniversity of BergenBergenNorway
Global images of auroras obtained by cameras on spacecraft are a key tool for studying the near-Earth ***,the cameras are sensitive not only to auroral emissions produced by precipitating particles,but also to dayglow... 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