咨询与建议

限定检索结果

文献类型

  • 473,041 篇 期刊文献
  • 2,794 篇 会议
  • 76 篇 学位论文
  • 12 册 图书

馆藏范围

  • 475,918 篇 电子文献
  • 5 种 纸本馆藏

日期分布

学科分类号

  • 213,833 篇 医学
    • 133,267 篇 临床医学
    • 33,699 篇 中西医结合
    • 21,272 篇 中药学(可授医学、...
    • 19,114 篇 药学(可授医学、理...
    • 15,186 篇 医学技术(可授医学...
    • 14,979 篇 基础医学(可授医学...
    • 12,443 篇 公共卫生与预防医...
    • 9,590 篇 中医学
  • 172,491 篇 工学
    • 25,380 篇 材料科学与工程(可...
    • 20,644 篇 化学工程与技术
    • 17,038 篇 机械工程
    • 10,899 篇 生物医学工程(可授...
    • 10,328 篇 计算机科学与技术...
    • 10,066 篇 食品科学与工程(可...
    • 9,641 篇 环境科学与工程(可...
    • 8,745 篇 软件工程
    • 8,704 篇 生物工程
    • 8,405 篇 仪器科学与技术
    • 8,372 篇 地质资源与地质工...
    • 8,073 篇 电子科学与技术(可...
    • 8,034 篇 水利工程
    • 7,522 篇 土木工程
  • 69,467 篇 农学
    • 17,391 篇 作物学
    • 11,983 篇 畜牧学
    • 9,957 篇 农业资源与环境
    • 9,107 篇 园艺学
    • 8,561 篇 植物保护
  • 57,805 篇 理学
    • 15,624 篇 生物学
    • 13,030 篇 化学
    • 7,280 篇 生态学
  • 15,910 篇 管理学
  • 6,504 篇 经济学
  • 5,355 篇 教育学
  • 3,548 篇 法学
  • 2,012 篇 艺术学
  • 1,351 篇 文学
  • 680 篇 历史学
  • 602 篇 军事学
  • 326 篇 哲学

主题

  • 6,816 篇 大鼠
  • 4,769 篇 数值模拟
  • 4,010 篇 预后
  • 3,608 篇 儿童
  • 3,489 篇 小鼠
  • 2,740 篇 疗效
  • 2,490 篇 危险因素
  • 2,381 篇 生长性能
  • 2,145 篇 腹腔镜
  • 2,143 篇 产量
  • 2,140 篇 细胞凋亡
  • 2,009 篇 影响因素
  • 1,915 篇 糖尿病
  • 1,812 篇 3d打印
  • 1,759 篇 治疗
  • 1,747 篇 凋亡
  • 1,717 篇 氧化应激
  • 1,693 篇 磁共振成像
  • 1,681 篇 安全性
  • 1,509 篇 并发症

机构

  • 2,948 篇 河北农业大学
  • 2,489 篇 中国科学院大学
  • 2,331 篇 中国农业大学
  • 2,289 篇 太原理工大学
  • 2,234 篇 四川大学
  • 2,227 篇 西北农林科技大学
  • 2,056 篇 上海交通大学
  • 2,035 篇 解放军总医院
  • 2,015 篇 吉林大学
  • 1,957 篇 清华大学
  • 1,857 篇 山西农业大学
  • 1,836 篇 北京大学
  • 1,756 篇 中南大学
  • 1,751 篇 中国地质大学
  • 1,726 篇 浙江大学
  • 1,696 篇 中国石油大学
  • 1,608 篇 郑州大学第一附属...
  • 1,596 篇 南京农业大学
  • 1,542 篇 华中科技大学
  • 1,538 篇 中山大学

作者

  • 2,379 篇 李伟
  • 1,974 篇 李强
  • 1,934 篇 李静
  • 1,905 篇 李军
  • 1,849 篇 李娜
  • 1,579 篇 李敏
  • 1,552 篇 李涛
  • 1,512 篇 李莉
  • 1,482 篇 李明
  • 1,417 篇 李勇
  • 1,374 篇 李宁
  • 1,341 篇 李杰
  • 1,336 篇 张丽
  • 1,250 篇 李刚
  • 1,214 篇 李丽
  • 1,210 篇 李斌
  • 1,210 篇 李娟
  • 1,103 篇 李鹏
  • 1,008 篇 李丹
  • 978 篇 张莉

语言

  • 443,798 篇 中文
  • 32,120 篇 英文
  • 5 篇 法文
检索条件"作者=li D"
475923 条 记 录,以下是91-100 订阅
排序:
Integrating Knowledge-Based Simulation with Aspiration-directed Model-based decision Support System
收藏 引用
Journal of Systems Engineering and Electronics 1996年 第2期7卷 25-33页
作者: Feng Shan & li d. Xu(department of Automatic Control Engineering,Huazhong University of Science and Technology Wuhan, Hubei 430074, China)(department of Management Science and Information systems Wright State University, dayton, OH 45435, USA) department of Automatic Control Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 China department of Management Science and Information Systems Wright State University Dayton OH 45435 USA
This paper reports an aspiration-directed, model-based decision support system (AMdSS) integrated with a knowledge-based simulation system. The system is designed to study China's mid-range economic development strate... 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
Strategies for efficient enrichment of anaerobic ammonia oxidizing bacteria in activated sludge
收藏 引用
Journal of Environmental Sciences 2025年 第5期151卷 703-713页
作者: Bin Tang Jin Wang Xingdong Gao Zhihua li Key Laboratory of Northwest Water Resource Environmentand EcologyMOESchool of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi’an 710055China Xi’an Key Laboratory of Intelligent Equipment Technology for Environmental Engineering Xi’an University of Architecture and TechnologyXi’an 710055China
Anaerobic ammonia oxidation(Anammox)is an economical and sustainablewastewater nitrogen removal technology,and its application in the mainstream process is the inevitable trend of the development of ***,how to effecti... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Nicotine mediates expression of genes related to antioxidant capacity and oxidative stress response in HIV-1 transgenic rat brain
Nicotine mediates expression of genes related to antioxidant...
收藏 引用
第十三届中国实验动物科学年会
作者: Guohua Song Jiping Gao Tanseli Nesil Junran Cao Zhongli Yang Ming d.li Shanxi Key Laboratory of Experimental Animal Science and Animal Model of Human disease department of Psychiatry and Neurobehavioral Sciences University of Virginia
Oxidative stress plays an important role in the progression of HIV-1 infection. Nicotine can either protect neurons from neurodegeneration or induce oxidative stress, depending on its dose and degree of oxidative stre... 详细信息
来源: cnki会议 评论
Small extracellular vesicles derived from cerebral endothelial cells with elevated microRNA 27a promote ischemic stroke recovery
收藏 引用
Neural Regeneration Research 2025年 第1期20卷 224-233页
作者: Yi Zhang Zhongwu liu Michael Chopp Michael Millman Yanfeng li Pasquale Cepparulo Amy Kemper Chao li li Zhang Zheng Gang Zhang department of Neurology Henry Ford HospitalDetroitMIUSA department of Physics Oakland UniversityRochesterMIUSA department of Pathology Henry Ford HospitalDetroitMIUSA division of Pharmacology Department of NeuroscienceReproductive and Dentistry SciencesSchool of MedicineUniversity of Naples“Federico Ⅱ”NaplesItaly
Axonal remodeling is a critical aspect of ischemic brain repair processes and contributes to spontaneous functional *** previous in vitro study demonstrated that exosomes/small extracellular vesicles(sEVs)isolated fro... 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
High-performance waveguide-integrated germanium PIN photodiodes for optical communication applications[Invited]
收藏 引用
Photonics Research 2013年 第3期1卷 140-147页
作者: Léopold Virot Laurent Vivien Jean-Marc Fédéli Yann Bogumilowicz Jean-Michel Hartmann Frédéric Bœuf Paul Crozat delphine Marris-Morini Eric Cassan Institut d’Electronique Fondamentale(IEF) Univ.Paris-SudCNRSBât 220F-91405 OrsayFrance CEA LETIMinatec Campus17 rue des MartyrsF-38054 GrenobleFrance STMicroelectronics Silicon Technology DevelopmentCrollesFrance
This paper reports on high-performance waveguide-integrated germanium photodiodes for optical communications applications.200 mm wafers and production tools were used to fabricate the *** over 97%were obtained for th... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Targeting cholesterol trafficking to mitigate axonal degeneration in hereditary spastic paraplegia
收藏 引用
Neural Regeneration Research 2025年 第5期20卷 1397-1398页
作者: Zhenyu Chen Xue-Jun li department of Biomedical Sciences University of Illinois College of Medicine RockfordRockfordILUSA department of Bioengineering University of Illinois at ChicagoChicagoILUSA
Axonal degeneration underlies many debilitating diseases including hereditary spastic paraplegia(HSP),a genetically and clinically diverse group of disorders characterized by spasticity and weakness of the lower *** i... 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
Concurrently Boosting Activity and Stability of Oxygen Reduction Reaction Catalysts via Judiciously Crafting Fe-Mn dual Atoms for Fuel Cells
收藏 引用
Nano-Micro Letters 2025年 第4期17卷 275-289页
作者: Lei Zhang Yuchen dong Lubing li Yuchuan Shi Yan Zhang liting Wei Chung-li dong Zhiqun lin Jinzhan Su International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi’an Jiaotong UniversityXi’an 710049People’s Republic of China department of Physics Tamkang UniversityNew Taipei CityTaiwan 25137People’s Republic of China department of Chemical and Biomolecular Engineering National University of SingaporeEngineering Drive 4Singapore 117585Singapore
The ability to unlock the interplay between the activity and stability of oxygen reduction reaction(ORR)represents an important endeavor toward creating robust ORR catalysts for efficient fuel ***,we report an effecti... 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
Spatial confinement:An effective strategy to improve H_(2)O and SO_(2) resistance of the expandable graphite-modified TiO_(2)-supported Pt nanocatalysts for CO oxidation
收藏 引用
Journal of Environmental Sciences 2025年 第2期148卷 57-68页
作者: Hongtai Zhu Wenge Qiu RuiWu Kai li Hong He Key Laboratory of Beijing on Regional Air Pollution Control Beijing Key Laboratory for Green Catalysis and SeparationBeijing University of TechnologyBeijing 100124China Advanced E-Catal.Corporation Ltd.Beijing 100025China
The expandable graphite(EG)modified TiO_(2) nanocomposites were prepared by the high shearmethod using the TiO_(2) nanoparticles(NPs)and EG as precursors,in which the amount of EG doped in TiO_(2) was 10 wt.%.Followed... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis
收藏 引用
Neural Regeneration Research 2025年 第2期20卷 354-365页
作者: li Xu Huiming Xu Changyong Tang department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina
Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,ex... 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
Inhibition of the NLRP3 inflammasome attenuates spiral ganglion neuron degeneration in aminoglycoside-induced hearing loss
收藏 引用
Neural Regeneration Research 2025年 第10期20卷 3025-3039页
作者: Jia Fang Zhuangzhuang li Pengjun Wang Xiaoxu Zhang Song Mao Yini li dongzhen Yu Xiaoyan li Yazhi Xing Haibo Shi Shankai Yin department of Otolaryngology Head and Neck Surgery Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineOtolaryngology Institute of Shanghai Jiao Tong UniversityShanghai Key Laboratory of Sleep Disordered BreathingShanghaiChina department of Otorhinolaryngology-Head and Neck Surgery Shanghai Children’s HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
Aminoglycosides are a widely used class of antibacterials renowned for their effectiveness and broad antimicrobial ***,their use leads to irreversible hearing damage by causing apoptosis of hair cells as their direct ... 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