咨询与建议

限定检索结果

文献类型

  • 88,569 篇 期刊文献
  • 5,809 册 图书
  • 3,979 篇 会议
  • 87 篇 学位论文
  • 34 篇 报纸

馆藏范围

  • 95,873 篇 电子文献
  • 2,705 种 纸本馆藏

日期分布

学科分类号

  • 34,351 篇 工学
    • 7,083 篇 材料科学与工程(可...
    • 3,658 篇 生物医学工程(可授...
    • 3,596 篇 化学工程与技术
    • 2,612 篇 机械工程
    • 2,280 篇 电子科学与技术(可...
    • 1,873 篇 计算机科学与技术...
    • 1,649 篇 动力工程及工程热...
    • 1,648 篇 地质资源与地质工...
    • 1,498 篇 仪器科学与技术
    • 1,292 篇 电气工程
    • 1,236 篇 水利工程
    • 1,216 篇 光学工程
  • 29,318 篇 医学
    • 24,055 篇 临床医学
    • 3,910 篇 医学技术(可授医学...
    • 2,728 篇 基础医学(可授医学...
    • 2,255 篇 中西医结合
    • 1,784 篇 公共卫生与预防医...
    • 1,259 篇 药学(可授医学、理...
  • 15,627 篇 理学
    • 2,991 篇 物理学
    • 2,585 篇 化学
    • 2,342 篇 生物学
    • 2,125 篇 数学
    • 1,851 篇 地质学
    • 1,114 篇 地球物理学
  • 7,317 篇 农学
    • 1,775 篇 畜牧学
    • 1,670 篇 作物学
  • 4,084 篇 管理学
    • 1,911 篇 管理科学与工程(可...
    • 1,142 篇 公共管理
  • 2,734 篇 经济学
    • 2,408 篇 应用经济学
  • 2,339 篇 教育学
    • 1,715 篇 教育学
  • 1,819 篇 文学
  • 1,626 篇 法学
  • 789 篇 艺术学
  • 708 篇 历史学
  • 618 篇 哲学
  • 187 篇 军事学

主题

  • 967 篇 ct
  • 841 篇 美国
  • 737 篇 mri
  • 518 篇 病人
  • 418 篇 mr
  • 413 篇 患者
  • 373 篇 北美洲
  • 291 篇 of
  • 288 篇 美利坚合众国
  • 232 篇 中国
  • 216 篇 治疗
  • 201 篇 and
  • 187 篇 cancer
  • 177 篇 方程
  • 156 篇 应用
  • 150 篇 covid-19
  • 150 篇 诊断
  • 150 篇 设计
  • 134 篇 儿童
  • 133 篇 disease

机构

  • 238 篇 北京大学
  • 218 篇 同济医科大学附属...
  • 172 篇 中国科学院大学
  • 132 篇 清华大学
  • 109 篇 香港理工大学
  • 93 篇 浙江大学
  • 75 篇 南京大学
  • 69 篇 华中科技大学
  • 68 篇 university of mi...
  • 67 篇 germany
  • 67 篇 institute for pa...
  • 67 篇 albert einstein ...
  • 66 篇 dipartimento di ...
  • 66 篇 nikhef p.o.box 4...
  • 66 篇 fysikum stockhol...
  • 65 篇 michigan state u...
  • 65 篇 中国地质大学
  • 55 篇 美国加州大学
  • 53 篇 东南大学
  • 53 篇 tifr homi bhabha...

作者

  • 186 篇 叶鹏
  • 100 篇 郭战宏
  • 91 篇 刘莉
  • 85 篇 f.krauss
  • 85 篇 g.weiglein
  • 85 篇 h.murayama
  • 85 篇 j.parsons
  • 85 篇 j.d.jackson
  • 83 篇 g.d'ambrosio
  • 83 篇 r.s.chivukula
  • 78 篇 y.kwon
  • 75 篇 kevin d.hyde
  • 72 篇 唐光健
  • 69 篇 郭俊
  • 57 篇 李开
  • 52 篇 s.blusk
  • 51 篇 李长根
  • 49 篇 m.white
  • 47 篇 王亭忠
  • 44 篇 阿d

语言

  • 67,982 篇 中文
  • 30,450 篇 英文
  • 3 篇 其他
  • 1 篇 德文
  • 1 篇 日文
检索条件"作者=D.H.Christensen"
98478 条 记 录,以下是11-20 订阅
排序:
Treating amyotrophic lateral sclerosis with allogeneic Schwann cell-derived exosomal vesicles: a case report
收藏 引用
Neural Regeneration Research 2025年 第4期20卷 1207-1216页
作者: Pascal J.Goldschmidt-Clermont Aisha Khan George Jimsheleishvili Patricia Graham Adriana Brooks Risset Silvera Alexander J.P.Goldschmidt damien d.Pearse W.dalton dietrich Allan d.Levi James d.Guest Miller School of Medicine University of MiamiMiamiFLUSA Stem Cell Institute Miller School of MedicineUniversity of MiamiMiamiFLUSA The Miami Project to Cure Paralysis Miller School of MedicineUniversity of MiamiMiamiFLUSA Alzady International LLC MiamiFLUSA Neurological Surgery Miller School of MedicineUniversity of MiamiMiamiFLUSA
Schwann cells are essential for the maintenance and function of motor neurons,axonal networks,and the neuromuscular *** amyotrophic lateral sclerosis,where motor neuron function is progressively lost,Schwann cell func... 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
Biochemical dissection of STAT3 signaling in amyotrophic lateral sclerosis
收藏 引用
Neural Regeneration Research 2025年 第11期20卷 3229-3230页
作者: Savina Apolloni Nadia d’Ambrosi department of Biology University of Rome Tor VergataRomeItaly
Amyotrophic lateral sclerosis(ALS)is a progressive neurodegenerative disease characterized by the loss of upper and lower motor neurons,clinically marked by muscle atrophy and *** the clinical course is highly variabl... 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
dynamic stress concentration in an infinitely long cylindrical cavity due to a point spherical source embedded within a fluid-saturated poroelastic formation of infinite extent
收藏 引用
Applied Mathematics and Mechanics(English Edition) 2025年 第1期46卷 139-156页
作者: h.hOSSEINI O.BALILAShAKI department of Mechanical Engineering Faculty of EngineeringGolestan University
The effects of a harmonically exciting monopole source on an infinitely long cylindrical cavity embedded entirely within a fluid-saturated poroelastic formation of infinite extent are examined theoretically. It is ass... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Oligodendroglial heterogeneity in health,disease,and recovery:deeper insights into myelin dynamics
收藏 引用
Neural Regeneration Research 2025年 第11期20卷 3179-3192页
作者: Pieter-Jan Serneels Julie d.de Schutter Lies de Groef Lieve Moons Steven Bergmans KU Leuven Leuven Brain InstituteDepartment of BiologyAnimal Physiology and Neurobiology DivisionNeural Circuit Development&Regeneration Research GroupLeuvenBelgium KU Leuven Leuven Brain InstituteDepartment of BiologyAnimal Physiology and Neurobiology DivisionCellular Communication&Neurodegeneration Research GroupLeuvenBelgium
decades of research asserted that the oligodendroglial lineage comprises two cell types:oligodendrocyte precursor cells and ***,recent studies employing single-cell RNA sequencing techniques have uncovered novel cell ... 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
Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics
收藏 引用
Nano-Micro Letters 2025年 第1期17卷 293-309页
作者: Kiran A.Nirmal Tukaram d.dongale Atul C.Khot Chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India
Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** mesh... 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
Machine learning empowers efficient design of ternary organic solar cells with PM6 donor
收藏 引用
Journal of Energy Chemistry 2025年 第1期100卷 337-347页
作者: Kiran A.Nirmal Tukaram d.dongale Santosh S.Sutar Atul C.Khot Tae Geun Kim School of Electrical Engineering Korea University Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and Biotechnology Shivaji University Yashwantrao Chavan School of Rural development Shivaji University
Organic solar cells(OSCs) hold great potential as a photovoltaic technology for practical ***, the traditional experimental trial-and-error method for designing and engineering OSCs can be complex, expensive, and time... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures
收藏 引用
Applied Mathematics and Mechanics(English Edition) 2025年 第1期46卷 81-100页
作者: S.SAURABh R.KIRAN d.SINGh R.VAISh V.S.ChAUhAN School of Mechanical and Materials Engineering Indian Institute of Technology Mandi
Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. hence, this study ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Advancements in Liver Tumor detection:A Comprehensive Review of Various deep Learning Models
收藏 引用
Computer Modeling in Engineering & Sciences 2025年 第1期142卷 91-122页
作者: Shanmugasundaram hariharan d.Anandan Murugaperumal Krishnamoorthy Vinay Kukreja Nitin Goyal Shih-Yu Chen deptartment of Artificial Intelligence and data Science Vardhaman College of EngineeringHyderabad501218India deptartment of CSE V.S.B College of EngineeringKarur639111India deptartment of Electrical and Electronics Engineering Vardhaman College of EngineeringHyderabad501218India Centre for Research Impact&Outcome Chitkara UniversityRajpura140401PunjabIndia department of Computer Science and Engineering School of Engineering and TechnologyCentral University of HaryanaMahendergarh123031HaryanaIndia department of Computer Science and Information Engineering National Yunlin University of Science and TechnologyYunlin64002Taiwan Intelligence Recognition Industry Service Research Center National Yunlin University of Science and TechnologyYunlin64002Taiwan
Liver cancer remains a leading cause of mortality worldwide,and precise diagnostic tools are essential for effective treatment *** Tumors(LTs)vary significantly in size,shape,and location,and can present with tissues ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
The sexually dimorphic expression of glutamate transporters and their implication in pain after spinal cord injury
收藏 引用
Neural Regeneration Research 2025年 第11期20卷 3317-3329页
作者: Jennifer M.Colón-Mercado Aranza I.Torrado-Tapias Iris K.Salgado Jose M.Santiago Samuel E.Ocasio Rivera dina P.Bracho-Rincon Luis h.Pagan Rivera Jorge d.Miranda department of Physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA National Institutes of health National Human Genome Research InstituteBethesdaMDUSA Universidad Central del Caribe School of MedicineBayamónPRUSA University of Puerto Rico Carolina CampusCarolinaPRUSA Institute of Neurobiology San JuanPRUSA
In addition to the loss of motor function,~60% of patients develop pain after spinal cord *** cellular-molecular mechanisms are not well understood,but the data suggests that plasticity within the rostral,epicenter,an... 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
Effects of Thermal Activation on the Electrocatalysis of the Ru(0001) Surface
收藏 引用
Chemical Research in Chinese Universities 2002年 第2期18卷 139-145页
作者: Wenfeng Lin Jiamei Jin Paul A.christensen department of Chemistry Bedson BuildingThe UniversityNewcastle upon TyneNE17RUUK
Variable temperature in situ FTIR spectroscopy has been used as the primary tool to investigate the effects of temperature(10 to 50 ℃) on formaldehyde dissociative adsorption and electro oxidation on the Ru(00... 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