咨询与建议

限定检索结果

文献类型

  • 21,933 篇 期刊文献
  • 2,945 篇 会议
  • 155 册 图书
  • 18 篇 学位论文

馆藏范围

  • 24,979 篇 电子文献
  • 76 种 纸本馆藏

日期分布

学科分类号

  • 11,474 篇 工学
    • 3,155 篇 材料科学与工程(可...
    • 1,360 篇 生物医学工程(可授...
    • 1,311 篇 化学工程与技术
    • 919 篇 机械工程
    • 750 篇 电子科学与技术(可...
    • 516 篇 动力工程及工程热...
    • 508 篇 计算机科学与技术...
    • 496 篇 核科学与技术
    • 444 篇 电气工程
    • 441 篇 仪器科学与技术
    • 428 篇 力学(可授工学、理...
    • 424 篇 地质资源与地质工...
    • 415 篇 土木工程
    • 364 篇 光学工程
    • 357 篇 水利工程
  • 8,445 篇 医学
    • 6,849 篇 临床医学
    • 1,375 篇 医学技术(可授医学...
    • 962 篇 基础医学(可授医学...
    • 733 篇 中西医结合
    • 473 篇 公共卫生与预防医...
    • 385 篇 药学(可授医学、理...
  • 5,037 篇 理学
    • 1,259 篇 物理学
    • 982 篇 化学
    • 639 篇 生物学
    • 502 篇 数学
    • 496 篇 地质学
    • 359 篇 地球物理学
  • 1,818 篇 农学
    • 482 篇 作物学
  • 760 篇 管理学
  • 469 篇 经济学
    • 426 篇 应用经济学
  • 425 篇 教育学
    • 353 篇 教育学
  • 259 篇 文学
  • 228 篇 法学
  • 99 篇 历史学
  • 97 篇 艺术学
  • 56 篇 哲学
  • 34 篇 军事学

主题

  • 201 篇 ct
  • 140 篇 mri
  • 105 篇 患者
  • 80 篇 中国
  • 70 篇 mr
  • 66 篇 病人
  • 65 篇 mechanical prope...
  • 61 篇 日本
  • 53 篇 simulation
  • 51 篇 microstructure
  • 50 篇 危险因素
  • 41 篇 analysis
  • 36 篇 properties
  • 35 篇 气候变化
  • 35 篇 of
  • 31 篇 性能
  • 29 篇 corrosion
  • 29 篇 high
  • 28 篇 药物治疗
  • 28 篇 magnetic

机构

  • 131 篇 北京大学
  • 114 篇 香港理工大学
  • 114 篇 南京大学
  • 103 篇 中国科学院大学
  • 93 篇 上海交通大学
  • 84 篇 香港城市大学
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 67 篇 nstitucio catala...
  • 67 篇 department of ph...
  • 67 篇 school of physic...
  • 67 篇 ludwig-maximilia...
  • 67 篇 cea/saclay dsm/i...

作者

  • 121 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 84 篇 p.de jong
  • 84 篇 v.i.belousov
  • 82 篇 v.burkert
  • 79 篇 y.hayato
  • 78 篇 a.v.gritsan
  • 73 篇 a.gurtu
  • 73 篇 m.carena
  • 72 篇 a.masoni
  • 64 篇 kavli ipmu
  • 64 篇 l.pape
  • 64 篇 s.rolli
  • 61 篇 a.d.martin
  • 60 篇 li y
  • 59 篇 b.heltsley
  • 56 篇 china

语言

  • 14,701 篇 中文
  • 10,350 篇 英文
检索条件"作者=Hirat. Y"
25051 条 记 录,以下是81-90 订阅
排序:
Effect of Eu^(3+),Bi^(3+),and Li^(+) doping on luminescent property of GdNbO_(4)
收藏 引用
Journal of Rare Earths 2024年 第1期42卷 66-75,I0003页
作者: S.W.Wi y.S.Lee Department of Physics and Integrative Institute of Basic Sciences Soongsil UniversitySeoul06978Republic of Korea
We investigated the emission properties of Eu^(3+)-doped GdNbO_(4)-based oxide phosphors,aiming at improving the Eu^(3+)emission by codoping of Bi^(3+)and Li^(+).Eu^(3+)singly doped,Eu^(3+)and Bi^(3+)doubly doped,and ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
PD-1^(+)and TIM-3^(+)T cells widely express commonγ-chain cytokine receptors in multiple myeloma patients,and IL-2,IL-7,IL-15 stimulation up-regulates PD-1 and TIM-3 on T cells
收藏 引用
Oncology Research 2024年 第10期32卷 1575-1587页
作者: EGOR V.BATOROV ALISA D.INESHINA TATIANA A.ARISTOVA VERA V.DENISOVA SVETLANA A.SIZIKOVA DARIA S.BATOROVA GALINA y.USHAKOVA EKATERINA y.SHEVELA ELENA R.CHERNyKH Laboratory of Cellular Immunotherapy Research Institute of Fundamental and Clinical ImmunologyNovosibirsk630099Russia V.Zelman Institute of Medicine and Psychology Novosibirsk National Research State UniversityNovosibirsk630090Russia Department of Hematology and Bone Marrow Transplantation Research Institute of Fundamental and Clinical ImmunologyNovosibirsk630099Russia
Background:Immune checkpoint ligand-receptor interactions appear to be associated with multiple myeloma(MM)***,previous studies showed the possibility of PD-1 and TIM-3 expression on T cells upon stimulation with com... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Cortical hem signaling center: functions, development, and potential implications for evolution and brain disorders
收藏 引用
Neural Regeneration Research 2025年 第4期20卷 1079-1080页
作者: Victor V.Chizhikov Igor y.Iskusnykh Department of Anatomy and Neurobiology University of Tennessee Health Science CenterMemphisTNUSA
Development of the telencephalon relies upon several signaling centers-localized cellular populations that supply secreted factors to pattern the cortical *** such signaling center is the cortical hem,which arises dur... 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
Towards an ultrafast 3D imaging scanning LiDAR system:a review
收藏 引用
Photonics Research 2024年 第8期12卷 1709-1729页
作者: ZHI LI yAQI HAN LICAN WU ZIHAN ZANG MAOLIN DAI SZE yUN SET SHINJI yAMASHITA QIAN LI H.y.FU Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Department of Electrical Engineering and Information Systems The University of TokyoTokyo 113-8656Japan Research Center for Advanced Science and Technology The University of TokyoTokyo 153-8904Japan School of Electronic and Computer Engineering Peking UniversityShenzhen 518055China
Light detection and ranging(LiDAR),as a hot imaging technology in both industry and academia,has undergone rapid innovation and *** current mainstream direction is towards system miniaturization and *** are many metri... 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
Childhood opportunity and appropriate use of child safety restraints in motor vehicle collisions
收藏 引用
World Journal of Pediatric Surgery 2024年 第2期7卷 142-149页
作者: Stephanie y Chen Iris Garcia Shadassa Ourshalimian Chantel Lowery Pradip P Chaudhari Ryan G Spurrier Pediatric Surgery Children's Hospital Los AngelesLos AngelesCaliforniaUSA Injury Prevention Program Children's Hospital Los AngelesLos AngelesCaliforniaUSA Emergency and Transport Medicine Children's Hospital Los AngelesLos AngelesCaliforniaUSA Pediatrics University of Southern California Keck School of MedicineLos AngelesCaliforniaUSA Surgery University of Southern California Keck School of MedicineLos AngelesCaliforniaUSA
Objectives Safety restraints reduce injuries from motor vehicle collisions(MVCs)but are often improperly applied or not *** Childhood Opportunity Index(COI)reflects social determinants of health and its study in pedia... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Game Theory based Optimal Defensive Resources Allocation with Incomplete Information in Cyber-physical Power Systems against False Data Injection Attacks
收藏 引用
Protection and Control of Modern Power Systems 2024年 第2期9卷 115-127页
作者: Bingjing yan Zhenze Jiang Pengchao yao Qiang yang Wei Li Albert y.Zomaya College of Electrical Engineering Zhejiang University College of Control Science and Engineering Zhejiang University College of Electrical Engineering Zhejiang UniversityHangzhou 310027China School of Information Technologies at The University of Sydney School of Information Technologies
Modern power grid is fast emerging as a complex cyber-physical power system(CPPS)integrating physical current-carrying components and processes with cyber-embedded computing,which faces increasing cy-berspace security... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Mindfulness Facets and Psychological Well-Being among Meditators:Serenity as a Mediating Process
收藏 引用
International Journal of Mental Health Promotion 2024年 第3期26卷 177-187页
作者: Rebecca y.M.Cheung Iris yili Wang Elsa Ngar-Sze Lau School of Psychology and Clinical Language Sciences University of ReadingReadingUK Department of Special Education and Counselling The Education University of Hong KongHong KongChina Department of Educational Administration and Policy The Chinese University of Hong KongHong KongChina
Guided by the theoretical processes of mindfulness and psychological well-being,this study examined serenity as a mediator between mindfulness facets and psychological well-being,as indexed by depressive symptoms and ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Cavity-agnostic acoustofluidic manipulations enabled by guided flexural waves on a membrane acoustic waveguide actuator
收藏 引用
Microsystems & Nanoengineering 2024年 第2期10卷 153-171页
作者: Philippe Vachon Srinivas Merugu Jaibir Sharma Amit Lal Eldwin J.Ng yul Koh Joshua E.-y.Lee Chengkuo Lee Department of Electrical and Computer Engineering National University of SingaporeSingaporeSingapore Institute of Microelectronics Agency for ScienceTechnology and Research(A*STAR)SingaporeSingapore SonicMEMS Laboratory School of Electrical and Computer EngineeringCornell UniversityIthacaNYUSA School of Electrical and Data Engineering University of Technology SydneyUltimoNSWAustralia
This article presents an in-depth exploration of the acoustofluidic capabilities of guided flexural waves(GFWs)generated by a membrane acoustic waveguide actuator(MAWA).By harnessing the potential of GFWs,cavity-agnos... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Prenatal Diagnosis of an Apically Located Congenital Left Ventricular Aneurysm: A Rare Case
收藏 引用
Congenital Heart Disease 2024年 第1期19卷 123-129页
作者: yücel Kaya And yavuz Hasan Berkan Sayal Büşra Tsakir Gökalp Kabacaoğlu Kadriye NilayÖzcan Department of Perinatology Antalya Education and Research HospitalUniversity of Health SciencesAntalyaTurkey Department of Perinatology Faculty of MedicineSüleyman Demirel UniversityIspartaTurkey
Congenital ventricular aneurysm is a very rare cardiac anomaly.A diagnosis can be made during the prenatal period using fetal *** study presents a very rare apically located left ventricular aneurysm case,and the rele... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Trial characteristics and treatment effect estimates in randomized controlled trials of Chinese herbal medicine: A meta-epidemiological study
收藏 引用
Journal of Integrative Medicine 2024年 第3期22卷 223-234页
作者: Betty H.Wang ya-li Lin yin-yan Gao Jin-lu Song Lang Qin Ling-qi Li Wen-qi Liu Claire C.W.Zhong Mary y.Jiang Chen Mao Xiao-bo yang Vincent C.H.Chung Irene X.y.Wu Jockey Club School of Public Health and Primary Care the Chinese University of Hong KongHong Kong 999077China Xiangya School of Public Health Central South UniversityChangsha 410006Hunan ProvinceChina School of Chinese Medicine the Chinese University of Hong KongHong Kong 999077China School of Public Health Southern Medical UniversityGuangzhou 510080Guangdong ProvinceChina State Key Laboratory of Dampness Syndrome of Chinese Medicine the Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510120Guangdong ProvinceChina Chinese Medicine Syndrome Research Team the Second Affiliated HospitalGuangzhou University of Chinese MedicineGuangzhou 510120Guangdong ProvinceChina Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome Guangzhou 510120Guangdong ProvinceChina Hunan Provincial Key Laboratory of Clinical Epidemiology Central South UniversityChangsha 410006Hunan ProvinceChina
Background:Previously published meta-epidemiological studies focused on Western medicine have identified some trial characteristics that impact the treatment effect of randomized controlled trials(RCTs).Nevertheless,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