咨询与建议

限定检索结果

文献类型

  • 45,332 篇 期刊文献
  • 3,149 篇 会议
  • 2,660 册 图书
  • 48 篇 学位论文
  • 22 篇 报纸

馆藏范围

  • 49,999 篇 电子文献
  • 1,258 种 纸本馆藏

日期分布

学科分类号

  • 18,514 篇 工学
    • 3,483 篇 材料科学与工程(可...
    • 1,964 篇 化学工程与技术
    • 1,933 篇 生物医学工程(可授...
    • 1,336 篇 机械工程
    • 1,305 篇 电子科学与技术(可...
    • 1,188 篇 计算机科学与技术...
    • 974 篇 地质资源与地质工...
    • 842 篇 仪器科学与技术
    • 811 篇 动力工程及工程热...
    • 699 篇 水利工程
    • 634 篇 电气工程
    • 630 篇 光学工程
  • 16,256 篇 医学
    • 13,300 篇 临床医学
    • 2,092 篇 医学技术(可授医学...
    • 1,488 篇 基础医学(可授医学...
    • 1,288 篇 中西医结合
    • 1,045 篇 公共卫生与预防医...
    • 761 篇 药学(可授医学、理...
  • 8,348 篇 理学
    • 1,532 篇 物理学
    • 1,355 篇 化学
    • 1,307 篇 生物学
    • 1,040 篇 地质学
    • 1,036 篇 数学
  • 4,297 篇 农学
    • 1,027 篇 畜牧学
    • 997 篇 作物学
    • 642 篇 农业资源与环境
  • 2,206 篇 管理学
    • 1,015 篇 管理科学与工程(可...
    • 650 篇 公共管理
  • 1,524 篇 经济学
    • 1,352 篇 应用经济学
  • 1,313 篇 教育学
    • 923 篇 教育学
  • 1,002 篇 文学
  • 870 篇 法学
  • 485 篇 艺术学
  • 319 篇 历史学
  • 247 篇 哲学
  • 125 篇 军事学

主题

  • 413 篇 ct
  • 403 篇 美国
  • 329 篇 mri
  • 297 篇 患者
  • 231 篇 病人
  • 175 篇 mr
  • 154 篇 北美洲
  • 111 篇 analysis
  • 110 篇 美利坚合众国
  • 88 篇 of
  • 85 篇 治疗
  • 81 篇 中国
  • 71 篇 cancer
  • 64 篇 大洋洲
  • 62 篇 日本
  • 60 篇 diabetes
  • 59 篇 and
  • 59 篇 诊断
  • 56 篇 发生率
  • 54 篇 并发症

机构

  • 82 篇 北京大学
  • 69 篇 同济医科大学附属...
  • 68 篇 university of mi...
  • 68 篇 南京大学
  • 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 department of ph...
  • 66 篇 national researc...
  • 66 篇 school of physic...
  • 66 篇 ludwig-maximilia...
  • 66 篇 cea/saclay dsm/i...
  • 63 篇 center of excell...

作者

  • 126 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 85 篇 v.i.belousov
  • 76 篇 kevin d.hyde
  • 72 篇 v.burkert
  • 64 篇 小d探长
  • 61 篇 y.hayato
  • 57 篇 kavli ipmu
  • 55 篇 l.pape
  • 52 篇 sayako.d
  • 51 篇 a.v.gritsan
  • 50 篇 m.d.
  • 44 篇 阿d
  • 36 篇 段雪
  • 34 篇 李长根
  • 34 篇 王铮

语言

  • 34,134 篇 中文
  • 17,065 篇 英文
  • 1 篇 德文
  • 1 篇 法文
  • 1 篇 日文
检索条件"作者=Kathrin A d.nlap"
51211 条 记 录,以下是71-80 订阅
排序:
Comparing the Structural Parameters of the Milky Way to Other Spiral Galaxies
收藏 引用
Research in Astronomy and Astrophysics 2024年 第3期24卷 10-28页
作者: Jacob A.Guerrette Aleksandr V.Mosenkov dallin Spencer Zacory d.Shakespear department of Physics and AstronomyN283 ESCBrigham Young University ProvoUT 84602USA
The structural parameters of a galaxy can be used to gain insight into its formation and evolution *** this paper,we strive to compare the Milky Way’s structural parameters to other,primarily edge-on,spiral galaxies ... 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
Natural parasites in conjunction with behavioral and color traits explain male agonistic behaviors in a lizard
收藏 引用
Current Zoology 2024年 第1期70卷 59-69页
作者: Rodrigo Megia-Palma dhanashree Paranjpe Robert d.Cooper Pauline Blaimont Barry Sinervo department of Biomedicine and Biotechnology Parasitology UnitUniversidad de Alcala(UAH)E-28805Alcala de HenaresSpain CIBio Centro de Investigagao em Biodiversidade e Recursos GeneticosInBIO Laboratorio AssociadoCampus de VairaoUniversidade do PortoP-4485-661 VairaoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de VairaoP-4485-661 VairaoPortugal Rupa Rahul Bajaj Center for Environment and Art Empress Botanical GardensKavade MalaPuneIndia department of Ecology and Evolutionary Biology University of CaliforniaLos AngelesCA 90095USA department of Biology University of Houston Downtown1Main St.HoustonTX 77002USA department of Ecology and Evolutionary Biology University of CaliforniaSanta CruzCA 95064USA
Male competition conforms to a cost-benefit model,because while aggression may increase reproductive prospects,it can also increase the risk of *** hypothesize that an additional cost in aggressive males would be an i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Garg incontinence scores: New scoring system on the horizon to evaluate fecal incontinence. Will it make a difference?
收藏 引用
World Journal of Gastroenterology 2024年 第3期30卷 204-210页
作者: Petr Tsarkov Inna Tulina Parvez Sheikh darya d Shlyk Pankaj Garg department of Colorectal Surgery Sechenov First Moscow State Medical UniversityMoscow 119991Russia department of Oncologic Colorectal Surgery Sechenov First Moscow State Medical UniversityMoscow 119991Russia department of Colorectal Surgery Saifee HospitalMumbai 400004MaharashtraIndia department of Colorectal Surgery Garg Fistula Research InstitutePanchkula 134113HaryanaIndia
The main aim of this opinion review is to comment on the recent article published by Garg et al in the World Journal of Gastroenterology 2023;29:4593–*** authors in the published article developed a new scoring syste... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Additively manufactured Ti–Ta–Cu alloys for the next-generation load-bearing implants
收藏 引用
International Journal of Extreme Manufacturing 2024年 第1期6卷 353-374页
作者: Amit Bandyopadhyay Indranath Mitra Sushant Ciliveri Jose d Avila William dernell Stuart B Goodman Susmita Bose W.M.Keck Biomedical Materials Research Laboratory School of Mechanical and Materials EngineeringWashington State UniversityPullmanWA 99164United States of America Veterinary Clinical Sciences College of Veterinary MedicineWashington State UniversityPullmanWA 99164United States of America department of Orthopedic Surgery Stanford University Medical CenterRedwood CityCA 94063United States of America
Bacterial colonization of orthopedic implants is one of the leading causes of failure and clinical complexities for load-bearing metallic implants. Topical or systemic administration of antibiotics may not offer the m... 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
Generating Baikal-GVd high energy cascade-like neutrino events with a GEANT4-based simulation toolkit
收藏 引用
Chinese Physics C 2024年 第10期48卷 256-263页
作者: Zike Wang A.d.Avrorin Zhen Cao Mingjun Chen Peiyuan Chu Zh.-A.M.dzhilkibaev Bo Gao Tianqi Huang Jiali Liu Ying Qi Xiaohao You d.N.Zaborov Key Laboratory of Particle Astrophysics Experimental Physics division&Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Institute for Nuclear Research of the Russian Academy of Sciences Moscow 117312Russia TIANFU Cosmic Ray Research Center Chengdu 610213China School of Science Tibet UniversityLhasa 850000China
Using the GEANT4 and Cosmic Ray Monte Carlo(CRMC)software packages,we developed a new simulation toolkit for astrophysical neutrino *** configuring the Baikal-GVd detector and comparing the vertex position and directi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Solar-driven CO_(2) conversion to methane and methanol using different nanostructured Cu_(2)O-based catalysts modified with Au nanoparticles
收藏 引用
Journal of Energy Chemistry 2024年 第4期91卷 287-298页
作者: João Angelo Lima Perini Lilian d.Moura Torquato Juliana Fde Brito Gustavo A.Andolpho Mateus A.Gonçalves Leonardo d.de Angelis Lucas d.Germano Susana I.Córdoba de Torresi Teodorico C.Ramalho Maria V.Boldrin Zanoni São Paulo State University(UNESP) Institute of ChemistryRua Prof.Francisco Degni55AraraquaraSP 14800-060Brazil National Institute of Alternative Technologies for detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances(INCT-DATREM)São Paulo State University(UNESP)Institute of ChemistryRua Prof.Francisco Degni55AraraquaraSP 14800-060Brazil Laboratory of Molecular Modelling Department of ChemistryNatural Sciences InstituteFederal University of LavrasLavrasMG 37200-900Brazil department of Chemistry Faculty of ScienceUniversity of Hradec KrálovéHradec Králové50003Czech Republic Instituto de Química Universidade de São PauloAv.Prof.Lineu Prestes 74805508-080São PauloSPBrazil
This work describes the use of TiO_(2)nanotubes-based electrodes(TNT)modified with Cu_(2)O nanostructures and gold nanoparticles for the photoelectroreduction of CO_(2)to produce value-added compounds.A thin layer 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
Review on dynamic analysis of road pavements under moving vehicles and plane strain conditions
收藏 引用
Journal of Road Engineering 2024年 第1期4卷 54-68页
作者: Edmond V.Muho Niki d.Beskou department of disaster Mitigation for Structures Tongji UniversityShanghai 200092China department of Civil Engineering University of the PeloponnesePatras 26334Greece School of Science and Technology Hellenic Open UniversityPatras 26335Greece
This paper reviews works on the dynamic analysis of flexible and rigid pavements under moving vehicles on the basis of continuum-based plane strain models and linear *** purpose of this review is to provide in-formati... 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 2024 Compendium of Physical Activities and its expansion
收藏 引用
Journal of Sport and Health Science 2024年 第1期13卷 1-2,F0003页
作者: Stephen d.Herrmann Erik A.Willis Barbara E.Ainsworth Kansas Center for Metabolism and Obesity Research University of Kansas Medical CenterKansas CityKS 66160USA Center for Health Promotion and disease Prevention University of North Carolina at Chapel HillChapel HillNC 27599USA School of Exercise and Health Shanghai University of SportShanghai 200438China
First developed 30 years ago,the Compendium of Physical Activities(Compendium)was created to provide a standardized way of measuring and classifying specific physical activities(PAs),allowing researchers and health pr... 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
Polio eradication surveillance in Sri Lanka,2019-2023
收藏 引用
Asian Pacific Journal of Tropical Medicine 2024年 第6期17卷 268-272页
作者: M.A.Y.Fernando N.S.Madarasinghe C.Rangana N.Weerasinghe d.C.U.d.Weligamage J.I.Abeynayake department of Medical Microbiology and Immunology Faculty of MedicineUniversity of ColomboSri Lanka department of Virology Medical Research InstituteColombo 08Sri Lanka Medical Research Institute Colombo 08Sri Lanka
Objective:To evaluate the polio laboratory surveillance carried out from January,2019 to May,2023 by the Polio Regional Reference Laboratory,Sri ***:This retrospective study analyzed all stool samples received under t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Aqueous electrochemical delithiation of cathode materials as a strategy to selectively recover lithium from waste lithium-ion batteries
收藏 引用
Journal of Energy Chemistry 2024年 第1期88卷 144-153,I0004页
作者: Pier Giorgio Schiavi Andrea Giacomo Marrani Olga Russina Ludovica d’Annibale Francesco Amato Francesca Pagnanelli Pietro Altimari department of Chemistry Sapienza University of RomePiazzale Aldo Moro n.500185 RomeItaly
Lithium recovery from end-of-life Li-ion batteries(LIBs)through pyro-and hydrometallurgical recycling processes involves several refining stages,with high consumption of reagents and energy.A competitive technological... 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