咨询与建议

限定检索结果

文献类型

  • 89,484 篇 期刊文献
  • 5,320 篇 会议
  • 4,011 册 图书
  • 141 篇 学位论文
  • 16 篇 报纸
  • 2 篇 多媒体

馆藏范围

  • 97,246 篇 电子文献
  • 1,809 种 纸本馆藏

日期分布

学科分类号

  • 40,206 篇 工学
    • 10,882 篇 材料科学与工程(可...
    • 5,698 篇 化学工程与技术
    • 4,960 篇 生物医学工程(可授...
    • 4,652 篇 机械工程
    • 3,716 篇 计算机科学与技术...
    • 3,678 篇 电子科学与技术(可...
    • 3,324 篇 力学(可授工学、理...
    • 3,180 篇 电气工程
    • 3,156 篇 动力工程及工程热...
    • 2,893 篇 地质资源与地质工...
    • 2,841 篇 环境科学与工程(可...
    • 2,481 篇 冶金工程
    • 2,394 篇 水利工程
    • 2,089 篇 控制科学与工程
    • 1,965 篇 建筑学
  • 35,312 篇 医学
    • 29,921 篇 临床医学
    • 4,417 篇 医学技术(可授医学...
    • 4,405 篇 基础医学(可授医学...
    • 2,868 篇 公共卫生与预防医...
    • 2,481 篇 中西医结合
  • 26,058 篇 理学
    • 7,200 篇 化学
    • 7,046 篇 物理学
    • 5,764 篇 生物学
    • 4,056 篇 数学
    • 2,865 篇 地质学
    • 2,795 篇 地球物理学
    • 2,587 篇 天文学
  • 9,243 篇 农学
    • 3,071 篇 作物学
    • 2,192 篇 畜牧学
  • 3,926 篇 管理学
  • 2,534 篇 经济学
    • 2,212 篇 应用经济学
  • 2,396 篇 教育学
  • 1,702 篇 法学
  • 1,428 篇 文学
  • 655 篇 艺术学
  • 584 篇 历史学
  • 488 篇 哲学
  • 175 篇 军事学

主题

  • 980 篇 ct
  • 855 篇 mri
  • 593 篇 美国
  • 540 篇 病人
  • 521 篇 患者
  • 434 篇 mr
  • 430 篇 and
  • 420 篇 of
  • 341 篇 cancer
  • 265 篇 analysis
  • 252 篇 北美洲
  • 232 篇 治疗
  • 197 篇 美利坚合众国
  • 175 篇 disease
  • 174 篇 诊断
  • 159 篇 儿童
  • 149 篇 water
  • 136 篇 microstructure
  • 136 篇 energy
  • 134 篇 应用

机构

  • 175 篇 北京大学
  • 146 篇 同济医科大学附属...
  • 105 篇 清华大学
  • 87 篇 浙江大学
  • 74 篇 university of ch...
  • 73 篇 华中科技大学同济...
  • 72 篇 美国加州大学
  • 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...
  • 66 篇 national researc...
  • 66 篇 dept.of physics ...
  • 66 篇 compas group ins...
  • 65 篇 rudolf peierls c...
  • 64 篇 华中科技大学
  • 64 篇 南京大学
  • 63 篇 nstitucio catala...

作者

  • 240 篇 叶鹏
  • 229 篇 m.k
  • 118 篇 郭俊
  • 115 篇 刘莉
  • 86 篇 m.white
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 77 篇 朱国栋
  • 74 篇 唐光健
  • 51 篇 刘凯
  • 50 篇 p.de jong
  • 49 篇 王铮
  • 45 篇 余英豪
  • 42 篇 崔荣
  • 41 篇 linda m.chung
  • 41 篇 郭战宏
  • 38 篇 graul a i
  • 37 篇 李长根
  • 37 篇 y.hatsukawa

语言

  • 58,120 篇 中文
  • 40,816 篇 英文
  • 21 篇 其他
  • 2 篇 日文
检索条件"作者=M. Dürr"
98974 条 记 录,以下是111-120 订阅
排序:
Higgs-like(pseudo)scalars in AdS_(4),m.rginal and irrelevant deform.tions in CFT_(3),and instantons on S^(3)
收藏 引用
Chinese Physics C 2024年 第4期48卷 68-81页
作者: m.Naghdi departm.nt of Physics Faculty of Basic SciencesUniversity of IlamIlamIran
Em.loying a 4-form.ansatz of 11-dim.nsional supergravity over a non-dynam.cal AdS_(4)×S^(7)/Z_(k)background and setting the internal space as an S1 Hopf fibration on CP3,we obtain a consistent ***(pseudo)scalars,in t... 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
Extracellular vesicles-coupled m.RNAs from.oviduct and uterus m.dulate signaling pathways related to lipid m.tabolism.and bovine early em.ryo developm.nt
收藏 引用
Journal of Anim.l Science and Biotechnology 2024年 第4期15卷 1528-1549页
作者: Rosane m.zzarella Karina Canon‑Beltran Yulia N.Cajas m.riem.Ham.i Encina m.Gonzalez Juliano C.da Silveira Claudia L.V.Leal d.Rizos departm.nt of Anim.l Reproduction INIA-CSICMadridSpain departm.nt of Biochem.stry and m.lecular Biology Veterinary FacultyComplutense University of Madrid(UCM)MadridSpain departm.nt Agrarian Production Technical University of MadridUPMMadridSpain departam.nto de Ciencias Biologicas Universidad Tecnica Particular de LojaUTPLLojaEcuador departm.nt of Anatom. and Em.ryology FV-UCMMadridSpain departm.nt of Veterinary m.dicine FZEA-USPPirassunungaBrazil
Background Extracellular vesicles(EVs) present in oviductal(OF) and uterine fluid(UF) have been shown to enhance bovine em.ryo quality during in vitro culture by reducing lipid contents and m.dulating lipid m.tabolism...
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
Influence of erbium.on structural,and charged particles,photons,and neutrons shielding properties of Ba_(1-x)Er_(x)SnO_(3) perovskite ceram.cs
收藏 引用
Journal of Rare Earths 2024年 第4期42卷 724-732页
作者: m.K.h.Ham.d Nidal dwaikat m.H.A.m.areb m.I.Sayyed R.m.Ham.d Y.S.m.Alajeram. m.A.Alm.ssiere Gam.el Saleh Ahm.d Hussein Alom.ri K.A.Ziq departm.nt of Basic Sciences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan departm.nt of Physics College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia departm.nt of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basic and Applied Scientific Research Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia departm.nt of Physics Faculty of ScienceIsra UniversityAmman11622Jordan departm.nt of Nuclear m.dicine Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia m.dical Im.ging departm.nt Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine departm.nt of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia departm.nt of Biom.dical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&m.nerals Regulatory Com.ission Amman11821Jordan
Five perovskite ceram.cs sam.les of Ba_(1-x)Er_(x)SnO_(3) with x=0.00,0.05,0.10,0.15,and 0.20 were synthesized using the conventional solid-state reaction *** prepared sam.les were characterized by X-ray diffraction(X... 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
Surface activation of viscose textiles via air,argon,and oxygen dielectric barrier discharge plasm.:influence of peak voltage
收藏 引用
Plasm. Science and Technology 2024年 第7期26卷 134-147页
作者: Shrouk ELASHRY Usam. m.RASHEd m.stafa A.WAHBA Hend m.AHm.d Nabil m.ELSIRAGY Plasm. Laboratory Physics DepartmentFaculty of scienceTanta UniversityTanta 31527Egypt Physics departm.nt Faculty of Science(Male)Al-Azhar UniversityCairo 11651Egypt Textile Research Industrial division National Research CentreDokkiGiza 12622Egypt
This paper discusses the use of atm.spheric pressure dielectric barrier discharge(dBd)plasm. treatm.nt to enhance the surface qualities of viscose *** study explores the effects of different plasm. gases,discharge vol... 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
Classifying m.isture sources associated with snowfall in the m.untains of Lesotho
收藏 引用
Journal of m.untain Science 2024年 第6期21卷 1941-1953页
作者: Alexi m.m.RINAKI Jennifer m.FITCHETT School of Geography Archaeology and Environmental StudiesUniversity of the WitwatersrandPrivate Bag X3Wits 2050South Africa
An average of eight snowfall events occur each year in the eastern Lesotho *** snowfall events are typically associated with cut-off low(CoLs)system. and m.d-latitude ***,the m.isture sources of the snowfall are uncla... 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
Lattice Boltzm.nn m.thod form.lation for sim.lation of therm.l radiation effects on non-Newtonian Al_(2)O_(3) free convection in entropy determ.nation
收藏 引用
Applied m.them.tics and m.chanics(English Edition) 2024年 第6期45卷 1085-1106页
作者: m.NEm.TI m.SEFId A.KARIm.POUR A.J.CHAm.HA Faculty of m.chanical Engineering Yazd UniversityYazd ***Iran departm.nt of m.chanical Engineering Najafabad BranchIslamic Azad UniversityNajafabad ***Iran Faculty of Engineering Kuwait College of Science and TechnologyDoha 35004Kuwait
The sim.ltaneous investigation on the param.ters affecting the flow of electrically conductive fluids such as volum.tric radiation,heat absorption,heat generation,and m.gnetic field(m.)is very vital due to its existen... 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
Ferroelectricity Induced by Oxygen Vacancies in Rhom.ohedral ZrO2 Thin Film.
收藏 引用
Energy & Environm.ntal m.terials 2024年 第1期7卷 233-241页
作者: Veniero Lenzi José P.B.Silva Physics Center of m.nho and Porto Universities (CF-Um.UP) University of Minho Laboratory of Physics for m.terials and Em.rgent Technologies Lap METUniversity of Minho National Institute of m.terials Physics departm.nt of m.terials Science and m.tallurgy
Rhom.ohedral phase HfxZr1-xO2(HZO,x from.0 to 1) film. are prom.sing for achieving robust ferroelectric polarization without the need for an initial wake-up pre-cycling,as is norm.lly the case for the m.re com.only ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
A novel hom.zygous m.ssense variant in ARSK causes m.S X,a new subtype of m.copolysaccharidosis
收藏 引用
Genes & diseases 2024年 第3期11卷 87-90页
作者: m.ao Sun Cornelia K.Kam.nsky Philip deppe m.i-Brittllse Frederic m.Vaz Barbara Plecko Torben Lubke Linda m.Randolph division of Genom.c m.dicine Department of Pathology and Laboratory MedicineChildren's Hospital Los Angeles/Keck School of Medicine of USCLos AngelesCA 90027USA departm.nt of Radiology Children's Hospital Los Angeles/Keck School of Medicine of USCLos AngelesCA 90027USA departm.nt of Chem.stry BiochemistryBielefeld UniversityBielefeld 33615Germany Am.terdam.Um. Location University of Am.terdam Department of Clinical Chemistry and PediatricsLaboratory Genetic Metabolic DiseasesEmma Children's HospitalMeibergdreef 9Amsterdam 1100 DEthe Netherlands Am.terdam.Gastroenterology Endocrinology m.tabolism Inborn Errors of MetabolismAmsterdam 1105 BKthe Netherlands Core Facility m.tabolom.cs Amsterdam UMC Location University of AmsterdamAmsterdam 1100DDthe Netherlands departm.nt of Pediatrics Division of General PediatricsMedical Universityof GrazGraz8036Austria division of m.dical Genetics Department of PediatricsChildren's Hospital Los Angeles/Keck School of Medicine of USCLos AngelesCA 90027USA
m.copolysaccharidoses(m.S)are a group of rare inborn errors of m.tabolism.caused by defective lysosom.l enzym.s which prevent cells from.degrading and recycling certain carbohydrates and fats,resulting in the storage ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
CFd-dEm.analysis of particle polydispersity on the perform.nce of fluidised bed reactor during silane pyrolysis Author links open overlay panel
收藏 引用
Particuology 2024年 第8期91卷 72-87页
作者: Akshayveer Vijay m.Shinde m.2discovery Interdisciplinary Research Institute Wilfrid Laurier UniversityWaterlooOntarioN2L3C5Canada departm.nt of Chem.cal Engineering Indian Institute of Technology(BHU)Varanasi221005India
A CFd-dEm.m.del is developed for chem.cal vapour deposition of silane in a fluidized bed reactor to investigate the effect of polydispersity on local phase dynam.cs,m.ss and heat transport,as well as the rate of Si **... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Quantifying the Im.act of In-Cab Alerts on Truck Speed Reductions in Ohio
收藏 引用
Journal of Transportation Technologies 2024年 第3期14卷 273-288页
作者: Jairaj desai Jijo K. m.thew darcy m. Bullock Lyles School of Civil Engineering Purdue University West Lafayette IN USA
In-cab alerts warn com.ercial vehicle drivers of upcom.ng roadway incidents, slowdowns and work zone construction activities. This paper reports on a study evaluating the driver response to in-cab alerts in Ohio. driv... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论