咨询与建议

限定检索结果

文献类型

  • 192,972 篇 期刊文献
  • 1,639 篇 会议
  • 2 篇 学位论文
  • 1 册 图书

馆藏范围

  • 194,614 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 85,746 篇 工学
    • 11,651 篇 材料科学与工程(可...
    • 10,463 篇 化学工程与技术
    • 7,251 篇 机械工程
    • 6,119 篇 计算机科学与技术...
    • 5,070 篇 电气工程
    • 4,718 篇 软件工程
    • 4,390 篇 环境科学与工程(可...
    • 4,386 篇 仪器科学与技术
    • 4,183 篇 动力工程及工程热...
    • 4,057 篇 土木工程
    • 3,962 篇 电子科学与技术(可...
    • 3,770 篇 水利工程
    • 3,603 篇 食品科学与工程(可...
  • 66,353 篇 医学
    • 36,794 篇 临床医学
    • 10,154 篇 中西医结合
    • 7,052 篇 药学(可授医学、理...
    • 7,018 篇 公共卫生与预防医...
    • 5,765 篇 中药学(可授医学、...
    • 4,993 篇 基础医学(可授医学...
    • 4,201 篇 医学技术(可授医学...
    • 3,728 篇 中医学
  • 25,689 篇 理学
    • 6,016 篇 化学
    • 5,565 篇 生物学
    • 3,718 篇 生态学
  • 24,134 篇 农学
    • 6,928 篇 作物学
    • 4,993 篇 农业资源与环境
  • 11,577 篇 管理学
    • 4,624 篇 公共管理
    • 4,407 篇 管理科学与工程(可...
  • 6,058 篇 教育学
    • 4,723 篇 教育学
  • 4,212 篇 经济学
    • 3,619 篇 应用经济学
  • 2,257 篇 文学
  • 2,234 篇 法学
  • 1,388 篇 历史学
  • 1,195 篇 艺术学
  • 538 篇 军事学
  • 529 篇 哲学

主题

  • 1,520 篇 影响因素
  • 1,161 篇 数值模拟
  • 1,048 篇 产量
  • 1,024 篇 预后
  • 761 篇 危险因素
  • 758 篇 儿童
  • 716 篇 大鼠
  • 593 篇 力学性能
  • 557 篇 应用
  • 521 篇 磁共振成像
  • 431 篇 老年人
  • 426 篇 诊断
  • 413 篇 治疗
  • 408 篇 凋亡
  • 375 篇 细胞凋亡
  • 365 篇 经济效益
  • 365 篇 疗效
  • 363 篇 meta分析
  • 352 篇 高血压
  • 349 篇 糖尿病

机构

  • 1,359 篇 中国科学院大学
  • 1,167 篇 四川大学
  • 1,140 篇 清华大学
  • 1,115 篇 北京大学
  • 1,106 篇 上海交通大学
  • 975 篇 西安交通大学
  • 918 篇 北京中医药大学
  • 917 篇 中国地质大学
  • 877 篇 西北农林科技大学
  • 847 篇 天津大学
  • 846 篇 吉林大学
  • 846 篇 武汉大学
  • 805 篇 中国矿业大学
  • 799 篇 中南大学
  • 752 篇 浙江大学
  • 744 篇 同济大学
  • 741 篇 中国农业大学
  • 717 篇 华中科技大学
  • 702 篇 山东大学
  • 693 篇 中国石油大学

作者

  • 3,343 篇 张媛
  • 1,310 篇 张媛媛
  • 1,048 篇 张伟
  • 908 篇 张磊
  • 859 篇 张源
  • 798 篇 张园
  • 771 篇 张鹏
  • 769 篇 张远
  • 737 篇 张元
  • 696 篇 李媛
  • 678 篇 张静
  • 671 篇 张敏
  • 625 篇 张涛
  • 588 篇 张勇
  • 587 篇 张杰
  • 563 篇 王媛
  • 546 篇 刘源
  • 511 篇 袁媛
  • 483 篇 张健
  • 455 篇 高原

语言

  • 182,280 篇 中文
  • 12,334 篇 英文
检索条件"作者=Yuan helen Zhang"
194614 条 记 录,以下是1-10 订阅
排序:
Bicycle-related traumatic injuries: a retrospective study during COVID-19 pandemic
收藏 引用
World Journal of Emergency Medicine 2024年 第4期15卷 256-262页
作者: Jie Er Janice Soo yuan helen zhang Gek Hsiang Lim Fatimah Lateef Department of Emergency Medicine Singapore General HospitalSingapore 168753Singapore Health Services Research Unit Singapore General HospitalSingapore168753Singapore
BACKGROUND:This study aimed to review bicycle-related injuries during the COVID-19 pandemic to assist with reinforcement or implementation of new policies for injury ***:This is a retrospective descriptive analysis of... 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
Co/Co_(7)Fe_(3)heterostructures with controllable alloying degree on carbon spheres as bifunctional electrocatalyst forrechargeable zinc-air batteries
收藏 引用
International Journal of Minerals,Metallurgy and Materials 2025年 第2期32卷 476-487页
作者: Junkang Chen Yongyue Zhuang Yanxin Qiao Yu zhang Aihua yuan Hu Zhou School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China
Exploring efficient and nonprecious metal electrocatalysts of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is crucial for developing rechargeable zinc-air batteries(ZABs).Herein,an alloying-degree c... 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 dopaminergic system and Alzheimer's disease
收藏 引用
Neural Regeneration Research 2025年 第9期20卷 2495-2512页
作者: Yuhan zhang yuan Liang Yixue Gu International Medical College Chongqing Medical UniversityChongqingChina College of Pharmacy Chongqing Medical UniversityChongqingChina Department of Neurology The First Affiliated Hospital of Chongqing Medical UniversityChongqing Key Laboratory of NeurologyChongqingChina
Alzheimer's disease is a common neurodegenerative disorder in older *** its prevalence,its pathogenesis remains unclea *** addition to the most widely accepted causes,which in clude excessive amyloid-beta aggregation,... 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
Decision making module based on stochastic magnetic tunnel junctions
收藏 引用
Science China(Physics,Mechanics & Astronomy) 2025年 第1期Mechanics & Astronomy) .卷 202-209页
作者: Yifan Miao Li Zhao Yajun zhang Zhe yuan Center for Advanced Quantum Studies and Department of Physics Beijing Normal University Institute for Nanoelectric Devices and Quantum Computing Fudan University Interdisciplinary Center for Theoretical Physics and Information Sciences Fudan University
In biological neural systems, noise is ubiquitous but does not affect the correct decisions made in the complex cognitive ***-making in biological neural system is typically achieved by accumulating input information ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Comparative proteomic analysis of plasma exosomes reveals the functional contribution of N-acetyl-alpha-glucosaminidase to Parkinson’s disease
收藏 引用
Neural Regeneration Research 2025年 第10期20卷 2998-3012页
作者: yuan Zhao Yidan zhang Xin Liu Jian zhang Ya Gao Shuyue Li Cui Chang Xiang Liu Guofeng Yang Department of Geriatrics Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina Department of Neurosurgery The Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina
Parkinson’s disease is the second most common progressive neurodegenerative disorder,and few reliable biomarkers are available to track disease *** proteins,DNA,mRNA,and lipids carried by exosomes reflect intracellul... 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
Zinc-based fiber-shaped rechargeable batteries:Insights into structures,electrodes,and electrolytes
收藏 引用
Nano Research 2025年 第1期18卷 278-293页
作者: Xuan zhang Hongcheng zhang Mengxiang Chen Jingqi Lu Evgeny Zhuravlev Jing Jiang Pin Liu Shengyang Dong Du yuan Guoyin Zhu Lianbo Ma Yizhou zhang Institute of Advanced Materials and Flexible Electronics(IAMFE) School of Chemistry and Materials ScienceNanjing University of Information Science and TechnologyNanjing 210044China School of Materials Science and Engineering Anhui University of TechnologyMaanshan 243002China College of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410004China
The rapid evolution of flexible wearable electronics has spurred a growing demand for energy storage devices,characterized by low-cost manufacturing processes,high safety standards,exceptional electrochemical performa... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Endogenous/exogenous dual stimulation“ROS engineering”amplification combined with autophagy-augmented for efficient ferroptosis therapy
收藏 引用
Nano Research 2025年 第1期18卷 597-606页
作者: Pengye Du Pengpeng Lei yuan Liang Ran An Yi Wei Shuyu Liu Jianhao Zheng Hongjie zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Department of Chemistry Tsinghua UniversityBeijing 100084China
“Reactive oxygen species(ROS)engineering”is one of the most promising anti-tumor treatments developed in recent *** explosion of ROS will cause oxidative stress,thereby inducing tumor cell ***,ROS accumulation in tu... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Mechanism of inflammatory response and therapeutic effects of stem cells in ischemic stroke:current evidence and future perspectives
收藏 引用
Neural Regeneration Research 2025年 第1期20卷 67-81页
作者: Yubo Wang Tingli yuan Tianjie Lyu Ling zhang Meng Wang Zhiying He Yongjun Wang Zixiao Li Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Shanghai Engineering Research Center of Stem Cells Translational Medicine ShanghaiChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Institute for Regenerative Medicine Shanghai East HospitalSchool of Life Sciences and TechnologyTongji UniversityShanghaiChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina
Ischemic stroke is a leading cause of death and disability worldwide,with an increasing trend and tendency for onset at a younger ***,in particular,bears a high burden of stroke *** recent years,the inflammatory respo... 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
Study on the hydrogen absorption properties of a YGdTbDyHo rare-earth high-entropy alloy
收藏 引用
International Journal of Minerals,Metallurgy and Materials 2025年 第1期32卷 127-135页
作者: Tongyue Li Ziliang Xie Wenjiao Zhou Huan Tong Dawen Yang Anjia zhang yuan Wu Xiping Song State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China Whole Win(Beijing)Materials Sci.&Tech.Co. Ltd.Beijing 100083China
This study investigated the microstructure and hydrogen absorption properties of a rare-earth high-entropy alloy(HEA),*** indicated that the YGdTbDyHo alloy had a microstructure of equiaxed grains,with the alloy eleme... 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
Locally Enhanced Flow and Electric Fields Through a Tip Effect for Efficient Flow‑Electrode Capacitive Deionization
收藏 引用
Nano-Micro Letters 2025年 第2期17卷 1-17页
作者: Ziquan Wang Xiangfeng Chen yuan zhang Jie Ma Zhiqun Lin Amor Abdelkader Maria‑Magdalena Titirici Libo Deng College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Research Center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore Department of Engineering Faculty of Science and TechnologyBournemouth UniversityTalbot CampusFern BarrowPooleEngland BH125BBUK Institut de Chimie de Nice UniversitéCôte d’AzurUMR CNRS 727228 Av.Valrose06108 NiceFrance Department of Chemical Engineering Imperial College LondonSouth Kensington CampusExhibition RdLondon SW72AZUK
Low-electrode capacitive deionization(FCDI)is an emerging desalination technology with great potential for removal and/or recycling ions from a range of ***,it still suffers from inefficient charge transfer and ion tr... 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