咨询与建议

限定检索结果

文献类型

  • 165,063 篇 期刊文献
  • 12,965 篇 会议
  • 5,893 册 图书
  • 70 篇 学位论文
  • 20 篇 报纸

馆藏范围

  • 181,396 篇 电子文献
  • 2,742 种 纸本馆藏

日期分布

学科分类号

  • 87,444 篇 工学
    • 18,998 篇 材料科学与工程(可...
    • 13,494 篇 化学工程与技术
    • 11,752 篇 机械工程
    • 8,984 篇 计算机科学与技术...
    • 8,891 篇 电气工程
    • 8,737 篇 电子科学与技术(可...
    • 6,981 篇 控制科学与工程
    • 6,970 篇 动力工程及工程热...
    • 6,784 篇 力学(可授工学、理...
    • 6,609 篇 生物医学工程(可授...
    • 6,137 篇 环境科学与工程(可...
    • 5,455 篇 地质资源与地质工...
    • 5,074 篇 水利工程
    • 4,718 篇 仪器科学与技术
    • 4,632 篇 土木工程
    • 4,572 篇 信息与通信工程
    • 4,549 篇 建筑学
  • 51,148 篇 医学
    • 38,748 篇 临床医学
    • 6,634 篇 基础医学(可授医学...
    • 5,919 篇 医学技术(可授医学...
    • 5,536 篇 公共卫生与预防医...
    • 5,180 篇 药学(可授医学、理...
  • 50,943 篇 理学
    • 15,055 篇 化学
    • 12,156 篇 物理学
    • 12,034 篇 生物学
    • 7,384 篇 数学
    • 4,590 篇 地质学
  • 20,323 篇 农学
    • 6,875 篇 作物学
  • 10,656 篇 管理学
    • 4,755 篇 管理科学与工程(可...
  • 5,462 篇 教育学
  • 5,092 篇 经济学
    • 4,512 篇 应用经济学
  • 3,413 篇 法学
  • 2,805 篇 文学
  • 1,373 篇 艺术学
  • 1,086 篇 历史学
  • 953 篇 哲学
  • 561 篇 军事学

主题

  • 955 篇 美国
  • 721 篇 ct
  • 486 篇 mri
  • 483 篇 数值模拟
  • 470 篇 患者
  • 464 篇 病人
  • 454 篇 应用
  • 414 篇 中国
  • 395 篇 of
  • 364 篇 产量
  • 348 篇 治疗
  • 346 篇 力学性能
  • 325 篇 美利坚合众国
  • 325 篇 诊断
  • 306 篇 and
  • 303 篇 设计
  • 290 篇 cancer
  • 285 篇 大鼠
  • 274 篇 影响因素
  • 264 篇 北美洲

机构

  • 973 篇 清华大学
  • 953 篇 浙江大学
  • 770 篇 四川大学
  • 758 篇 北京大学
  • 729 篇 中国科学院大学
  • 667 篇 山东大学
  • 631 篇 上海交通大学
  • 616 篇 中国地质大学
  • 576 篇 吉林大学
  • 546 篇 深圳大学
  • 535 篇 天津大学
  • 522 篇 东南大学
  • 515 篇 同济大学
  • 512 篇 哈尔滨工业大学
  • 504 篇 中国石油大学
  • 445 篇 西安交通大学
  • 438 篇 西北农林科技大学
  • 405 篇 中山大学
  • 374 篇 大连理工大学
  • 360 篇 华中科技大学

作者

  • 661 篇 p.r.china
  • 205 篇 叶鹏
  • 194 篇 吕军
  • 193 篇 吕强
  • 184 篇 吕刚
  • 150 篇 p. r. china
  • 145 篇 吕明
  • 121 篇 吕鹏
  • 119 篇 吕波
  • 115 篇 china
  • 115 篇 刘莉
  • 114 篇 吕清
  • 101 篇 吕庆
  • 100 篇 吕伟
  • 99 篇 吕涛
  • 98 篇 吕超
  • 93 篇 吕斌
  • 92 篇 郭俊
  • 91 篇 吕勇
  • 85 篇 吕杰

语言

  • 136,073 篇 中文
  • 47,920 篇 英文
  • 1 篇 法文
检索条件"作者=R.L.DeWilde"
184011 条 记 录,以下是91-100 订阅
排序:
Global prevalence and gender inequalities in at least 60 min of self-reported moderate-to-vigorous physical activity 1 or more days per week:An analysis with 707,616 adolescents
收藏 引用
Journal of Sport and Health Science 2024年 第5期13卷 709-716页
作者: raphael H.O.Araujo AndrúO.Werneck Clarice l.Martins luciana l.Barboza rafael M.Tassitano Nicolas Aguilar-Farias Gilmar M.Jesus robinson ramírez-Véelez riki Tesler Adewale l.Oyeyemi Ellen C.M.Silva robert G.Weaver Mark S.Tremblay Javier Brazo-Sayavera Grégore I.Mielke Danilo r.P.Silva Graduation Program in Health Sciences Londrina State University(UEL)Londrina 86057-970Brazil Center for Epidemiological research in Nutrition and Health Department of NutritionSchool of Public HealthUniversidade de Sao Paulo(USP)Sao Paulo 01246-904Brazil Department of Physical Education Federal University of ParaıbaParaıba 58051-900Brazil research Centre of Physical Activity Health and LeisureFaculty of SportsLaboratory for Integrative and Translational Research in Population Health(ITR)University of PortoPorto 4500Portugal Postgraduate Program in Physical Education University of BrasıliaBrasılia 70910-900Brazil Department of Kinesiology and Community Health University of Illinois at Urbana-ChampaignChampaignIL 61801-3841USA Department of Physical Education Sports and RecreationUniversidad de La FronteraTemuco 4680000Chile Department of Health State University of Feira de SantanaFeira de Santana 44036-900Brazil Navarrabiomed Hospital Universitario de Navarra(HUN)Navarra Institute for Health Research(IdiSNA)Universidad Publica de Navarra(UPNA)Pamplona 31006Spain Facultad de Ciencias de la Educacion Unidad Central del Valle del Cauca(UCEVA)TuluaValle del Cauca 763022Colombia Health Management Department Faculty of Heath sciencesAriel UniversityAriel 40700Israel College of Health Solutions Arizona State UniversityPhoenixAZ 85004USA Arnold School of Public Health University of South CarolinaColumbiaSC 29208USA Healthy Active living and Obesity research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada Department of Health Sciences Carleton UniversityOttawaON K1S 5B6Canada Department of Sports and Computer Science Universidad Pablo de Olavide(UPO)Seville 41013Spain Centro Universitario regional Noreste Universidad de la RepublicaRivera 40000Uruguay School of Public Health The University of QueenslandBrisbaneQLD 4006Australia Department of Physical Education
Background:Guidelines recommend that adolescents should accumulate an average of 60 min per day of moderate-to-vigorous physical activity(MVPA).However,using only this cut-off could hide important *** instance,from a ... 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
Chronic active and atrophic gastritis as significant contributing factor to the development of gastric cystica profunda
收藏 引用
World Journal of Gastroenterology 2024年 第17期30卷 2308-2310页
作者: Veronika Papp l Miheller Department of Surgery Transplantation and GastroenterologySemmelweis UniversityBudapest 1082Hungary
Gastric cystica profunda(GCP)is an uncommon but underestimated gastric *** precancerous potential determines its *** addition to previous mucosa injury due to operations,biopsy or polypectomy,chronic active and atroph... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
long-term follow-up of patients with congenital diaphragmatic hernia
收藏 引用
World Journal of Pediatric Surgery 2024年 第2期7卷 100-109页
作者: Nicole Cimbak Terry l Buchmiller Department of Pediatric Surgery Boston Children's HospitalBostonMAUSA
Neonates with congenital diaphragmatic hernia encounter a number of surgical and medical morbidities that persist into *** mortality improves for this population,these survivors warrant specialized follow-up for their... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Classification of Conversational Sentences Using an Ensemble Pre-Trained language Model with the Fine-Tuned Parameter
收藏 引用
Computers, Materials & Continua 2024年 第2期78卷 1669-1686页
作者: r.Sujatha K.Nimala Department of Networking and Communications SRM Institute of Science and TechnologyKattankulathurChengalpattuTamilnadu603203India
Sentence classification is the process of categorizing a sentence based on the context of the *** categorization requires more semantic highlights than other tasks,such as dependence parsing,which requires more syntac... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Modified Black Widow Optimization-Based Enhanced Threshold Energy Detection Technique for Spectrum Sensing in Cognitive radio Networks
收藏 引用
Computer Modeling in Engineering & Sciences 2024年 第3期138卷 2339-2356页
作者: r.Saravanan r.Muthaiah A.rajesh School of Computing SASTRA Deemed UniversityThanjavur613401India School of Electrical&Electronics Engineering SASTRA Deemed UniversityThanjavur613401India
This study develops an Enhanced Threshold Based Energy Detection approach(ETBED)for spectrum sensing in a cognitive radio *** threshold identification method is implemented in the received signal at the secondary user... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Unsteady MHD Casson Nanofluid Flow Past an Exponentially Accelerated Vertical Plate:An Analytical Strategy
收藏 引用
Computer Modeling in Engineering & Sciences 2024年 第7期140卷 431-460页
作者: T.Aghalya r.Tamizharasi Department of Mathematics School of Advanced SciencesVellore Institute of TechnologyVelloreTamilnadu632014India
In this study,the characteristics of heat transfer on an unsteady magnetohydrodynamic(MHD)Casson nanofluid over an exponentially accelerated vertical porous plate with rotating effects were *** flow was driven by the ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Time trends and outcomes of gastrostomy placement in a Swedish national cohort over two decades
收藏 引用
World Journal of Gastroenterology 2024年 第10期30卷 1358-1367页
作者: Martin löfling Skogar Magnus Sundbom Department of Surgical Sciences Uppsala UniversityUppsala 75185Sweden
BACKGrOUND Percutaneous endoscopic gastrostomy(PEG)and laparoscopically inserted gastrostomy have become the gold standard for adult patients and children,respectively,requiring long-term enteral nutrition ***-related... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Experimental implementation of phase triplicator gratings in a spatial light modulator
收藏 引用
Chinese Optics letters 2024年 第2期22卷 64-69页
作者: 高尚 María del Mar Sánchez-lópez Ignacio Moreno Instituto de Bioingeniería Universidad Miguel HernándezElche 03202Spain Departamento de Física Aplicada Universidad Miguel HernándezElche 03202Spain Departamento de Ciencia de Materiales Óptica y Tec.Electr´onicaUniversidad Miguel HernándezElche 03202Spain
In this work,we compare different methods for implementing a triplicator,a phase grating that generates three equiintense diffraction *** design with optimal efficiency features a continuous phase profile,which cannot... 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
Mid-term survival of the Optimys short stem: A prospective case series of 500 patients
收藏 引用
World Journal of Orthopedics 2024年 第3期15卷 257-265页
作者: Bryan Hamans Sheryl de Waard Sjoerd Kaarsemaker Esther r C Janssen Inger N Sierevelt Gino M M J Kerkhoffs Daniël Haverkamp Department of Orthopaedic Surgery Xpert ClinicAmsterdam 1101EANetherlands Department of Orthopedic Surgery Amsterdam University Medical CenterAmsterdam 1105 AZNetherlands Esther r C Janssen Department of Orthopaedic SurgeryViecuri Medisch CentrumVenlo 5912 BLNetherlands Centre for Orthopaedic research Spaarne ZiekenhuisHoofddorp 2134 TMNetherlands Department of Orthopaedic Surgery and Sports Medicine Amsterdam UMC-Location AMCAmsterdam 1105 AZNetherlands Department of Orthopedic Surgery Xpert Orthopedic Surgery ClinicAmsterdam 1101 EANetherlands
BACKGrOUND In recent years,there has been an increase in the number of total hip arthroplasty procedures in the younger patient *** active group has higher expectations of their prosthesis in comparison to the older p... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
An Efficient Modelling of Oversampling with Optimal Deep learning Enabled Anomaly Detection in Streaming Data
收藏 引用
China Communications 2024年 第5期21卷 249-260页
作者: r.rajakumar S.Sathiya Devi Srinivasa ramanujan Centre SASTRA Deemed UniversityKumbakonamTamil Nadu 612001India University College of Engineering BIT CampusAnna UniversityTiruchirappalli 620024India
recently,anomaly detection(AD)in streaming data gained significant attention among research communities due to its applicability in finance,business,healthcare,education,*** recent developments of deep learning(Dl)mod... 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