咨询与建议

限定检索结果

文献类型

  • 406,918 篇 期刊文献
  • 29,643 篇 会议
  • 39 册 图书

馆藏范围

  • 436,600 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 200,392 篇 医学
    • 172,141 篇 临床医学
    • 29,104 篇 基础医学(可授医学...
    • 17,470 篇 公共卫生与预防医...
    • 15,460 篇 药学(可授医学、理...
    • 12,647 篇 中西医结合
  • 199,764 篇 理学
    • 54,751 篇 化学
    • 52,673 篇 物理学
    • 52,673 篇 生物学
    • 43,693 篇 数学
    • 25,833 篇 天文学
    • 14,042 篇 地球物理学
    • 13,308 篇 地质学
  • 199,504 篇 工学
    • 72,978 篇 材料科学与工程(可...
    • 41,860 篇 化学工程与技术
    • 33,043 篇 计算机科学与技术...
    • 25,257 篇 机械工程
    • 23,596 篇 电气工程
    • 23,473 篇 电子科学与技术(可...
    • 20,084 篇 力学(可授工学、理...
    • 18,854 篇 生物医学工程(可授...
    • 18,686 篇 环境科学与工程(可...
    • 15,835 篇 控制科学与工程
    • 14,571 篇 动力工程及工程热...
    • 13,355 篇 信息与通信工程
    • 11,530 篇 水利工程
    • 10,807 篇 地质资源与地质工...
    • 10,504 篇 软件工程
    • 9,999 篇 仪器科学与技术
    • 9,976 篇 生物工程
  • 34,935 篇 农学
    • 14,508 篇 作物学
  • 17,135 篇 管理学
  • 8,765 篇 经济学
  • 6,689 篇 教育学
  • 5,000 篇 法学
  • 3,918 篇 文学
  • 2,068 篇 艺术学
  • 1,047 篇 历史学
  • 760 篇 军事学
  • 753 篇 哲学

主题

  • 5,240 篇 cancer
  • 4,267 篇 of
  • 3,630 篇 case report
  • 3,213 篇 and
  • 2,722 篇 disease
  • 2,589 篇 liver
  • 2,542 篇 treatment
  • 2,395 篇 apoptosis
  • 2,198 篇 diagnosis
  • 2,196 篇 covid-19
  • 2,143 篇 analysis
  • 2,048 篇 model
  • 2,039 篇 prognosis
  • 2,000 篇 surgery
  • 1,984 篇 cell
  • 1,706 篇 inflammation
  • 1,672 篇 system
  • 1,545 篇 therapy
  • 1,491 篇 diabetes
  • 1,396 篇 carcinoma

机构

  • 1,177 篇 university of ch...
  • 508 篇 china
  • 465 篇 department
  • 371 篇 北京大学
  • 348 篇 university of ch...
  • 342 篇 ieee
  • 277 篇 department of ma...
  • 249 篇 department of ch...
  • 240 篇 department of ch...
  • 222 篇 清华大学
  • 159 篇 peking universit...
  • 155 篇 中国地质大学
  • 153 篇 usa
  • 151 篇 浙江大学
  • 128 篇 department of co...
  • 123 篇 南京大学
  • 122 篇 中国科学院大学
  • 120 篇 beijing
  • 117 篇 department of ph...
  • 113 篇 中山大学

作者

  • 694 篇 wei wang
  • 550 篇 wei zhang
  • 468 篇 wei li
  • 443 篇 jing wang
  • 432 篇 li zhang
  • 418 篇 wei liu
  • 413 篇 li li
  • 401 篇 lei zhang
  • 356 篇 yu zhang
  • 351 篇 jing zhang
  • 333 篇 lei wang
  • 315 篇 jun wang
  • 310 篇 hui wang
  • 289 篇 yi zhang
  • 286 篇 yang liu
  • 268 篇 yan wang
  • 262 篇 ying wang
  • 255 篇 jing li
  • 250 篇 jian wang
  • 243 篇 yan li

语言

  • 399,028 篇 英文
  • 37,570 篇 中文
  • 2 篇 日文
检索条件"机构=Health and Safety Department"
436600 条 记 录,以下是11-20 订阅
排序:
Pedestrian lane formation with following–overtaking model and measurement of system order
收藏 引用
Chinese Physics B 2024年 第2期33卷 247-263页
作者: 李碧璐 李政 周睿 申世飞 department of Engineering Physics Tsinghua UniversityBeijing 100084China School of safety Science Tsinghua UniversityBeijing 100084China
Pedestrian self-organizing movement plays a significant role in evacuation studies and architectural *** formation,a typical self-organizing phenomenon,helps pedestrian system to become more orderly,the majority of fo... 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
A state-of-the-art review of the development of self-healing concrete for resilient infrastructure
收藏 引用
Frontiers of Structural and Civil Engineering 2024年 第2期18卷 151-169页
作者: Dong LU Xi JIANG Yao ZHANG Shaowei ZHANG Guoyang LU Zhen LENG department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China Laboratory of Fire safety School of Safety Engineering and Emergency ManagementShijiazhuang Tiedao UniversityShijiazhuang 050043China department of Architecture and Civil Engineering City University of Hong KongHong Kong 999077China
The brittleness of cement composites makes cracks almost inevitable,producing a serious limitation on the lifespan,resilience,and safety of concrete *** address this brittleness,self-healing concrete has been develope... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
An extended social force model on unidirectional flow considering psychological and behavioral impacts of hazard source
收藏 引用
Chinese Physics B 2024年 第2期33卷 567-576页
作者: 邓凯丰 李梦 胡祥敏 陈涛 Institute of Public safety Research Department of Engineering PhysicsTsinghua UniversityBeijing 100084China Anhui Province Key Laboratory of Human safety Hefei 230601China Beijing Key Laboratory of Comprehensive Emergency Response Science Beijing 100084China
An accurate assessment of the evacuation efficiency in case of disasters is of vital importance to the safety design of buildings and street *** sources not only physically but psychologically affect the pedestrians,w... 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
health risks of pest control and disinfection workers after the COVID-19 outbreak in South Korea
收藏 引用
Journal of Environmental Sciences 2024年 第5期139卷 350-363页
作者: Yun-Hee Choi Da-An Huh Lita Kim Sang ji Lee Kyong Whan Moon department of health and safety Convergence Science Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea BK21 FOUR R&E Center for Learning health System Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea Institute of Sciences Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea department of health and Environmental Science Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea
The exposure patterns of pest control and disinfection workers have changed after the coronavirus disease 2019(COVID-19)outbreak,but the health risks of chemical exposure have not been *** identified these workers’ch... 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
Genetic Variations and Nonalcoholic Fatty Liver Disease:Field Synopsis,Systematic Meta-Analysis,and Epidemiological Evidence
收藏 引用
Biomedical and Environmental Sciences 2024年 第7期37卷 762-773页
作者: Yamei Li Xiang Xiao Jie Wang Yixu Liu Xiongfeng Pan Haibin Yu Jiayou Luo Miyang Luo department of Epidemiology and health Statistics School of Public HealthUniversity of South ChinaHengyang 421001HunanChina department of Maternal and Child health Xiangya School of Public HealthCentral South UniversityChangsha 410008HunanChina Supervision and Inspection department of Shanghai healthcare Security Bureau Shanghai 200003China department of Epidemiology and health Statistics Xiangya School of Public HealthCentral South UniversityChangsha 410008HunanChina
Objective To systematically summarize the published literature on the genetic variants associated with nonalcoholic fatty liver disease(NAFLD).Methods Literature from Web of Science,PubMed,and Embase between January 1... 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
Geometric and defects engineering collaboration for enhanced cascade enzymatic nanoreactors
收藏 引用
Nano Research 2024年 第4期17卷 2451-2461页
作者: Zhichao Yu Ruijin Zeng Hexiang Gong Yuan Gao Shuyun Chen Yunsen Wang Dianping Tang Key Laboratory for Analytical Science of Food safety and Biology(MOE&Fujian Province) Department of ChemistryFuzhou UniversityFuzhou 350108China
Highly evolved multi-enzyme cascade catalytic reactions in organisms facilitate rapid transfer of substrates and efficient conversion of intermediates in the catalytic unit,thus rationalizing their efficient *** this ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Benign stricture of bilioenteric anastomosis after Whipple withsynthetic polypropylene suture
收藏 引用
Hepatobiliary & Pancreatic Diseases International 2024年 第1期23卷 103-105页
作者: A Michael Devane Christine MG Schammel department of Radiology Prisma Health UpstateGreenvilleUSA department of Pathology Prisma Health UpstateGreenvilleUSA
To the Editor:Biliary stricture formation at the bilioenteric anastomosis is an infrequent complication(2%-3%)after pancreaticoduodenectomy;the average presentation is within 13-14 months(range from 1 month to 9 years... 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
Approach to traumatic cardiac arrest in the emergency department: a narrative literature review for emergency providers
收藏 引用
World Journal of Emergency Medicine 2024年 第1期15卷 3-9页
作者: Rashed Alremeithi Quincy K.Tran Megan T.Quintana Soroush Shahamatdar Ali Pourmand department of Emergency Medicine George Washington University School of Medicine and Health SciencesWashington DC 20037USA department of Emergency Medicine University of Maryland School of MedicineBaltimore 21201USA Program in Trauma the R Adams Cowley Shock Trauma CenterUniversity of Maryland School of MedicineBaltimore 21201USA Center for Trauma and Critical Care Department of Surgerythe George Washington University School of Medicine&Health SciencesWashington DC 20037USA
BACKGROUND:Traumatic cardiac arrest(TCA)is a major contributor to mortality and morbidity in all age groups and poses a significant burden on the healthcare *** there have been advances in treatment modalities,surviva... 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
Prevalence of Anemia in Patients with Diabetes Mellitus:A Systematic Review and Meta-Analysis
收藏 引用
Biomedical and Environmental Sciences 2024年 第1期37卷 96-107页
作者: Monireh Faghir-Ganji Narjes Abdolmohammadi Maryam Nikbina Alireza Amanollahi Alireza Ansari-Moghaddam Rozhan Khezri Hamidreza Baradaran Student Research Committee Iran University of Medical SciencesTehranIran department of Epidemiology School of Public HealthIran University of Medical SciencesTehranIran department of Epidemiology School of Public HealthTehran University of Medical SciencesTehranIran department of Midwifery Shoushtar Faculty of Medical SciencesShoushtarIran department of Epidemiology School of Public Health and SafetyShahid Beheshti University of Medical SciencesTehranIran Trauma and Injury Research Center Iran University of Medical SciencesTehranIran health Promotion Research Center Zahedan University of Medical SciencesZahedanIran Endocrine Research Center Institute of Endocrinology and MetabolismIran University of Medical SciencesTehranIran
Objective Anemia is a common public health concern in patients with type 2 diabetes *** study aimed to identify the prevalence of anemia among patients with *** Electronic databases,including PubMed,Scopus,Web of Scie... 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
Independent and Combined Associations of Sleep Duration, Bedtime, and Polygenic Risk Score with the Risk of Hearing Loss among Middle-Aged and Old Chinese: The Dongfeng–Tongji Cohort Study
收藏 引用
Research 2024年 第1期2023卷 721-733页
作者: Miao Liu Haiqing Zhang Zhichao Wang Tingting Mo Xuefeng Lai Yaling He Minghui Jiang Meian He Weijia Kong Tangchun Wu Xiaomin Zhang department of Occupational and Environmental health Ministry of Education Key Laboratory of Environment and Healthand State Key Laboratory of Environmental Health(Incubating)School of Public HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina department of Otorhinolaryngology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina department of Epidemiology and Biostatistics School of Public HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
Evidence available on the independent and combined associations of sleep duration,bedtime,and genetic predisposition with hearing loss was *** present study included 15,827 participants from the Dongfeng–Tongji cohor... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论