咨询与建议

限定检索结果

文献类型

  • 18,765 篇 期刊文献
  • 1,364 篇 会议
  • 705 册 图书
  • 9 篇 学位论文

馆藏范围

  • 20,640 篇 电子文献
  • 222 种 纸本馆藏

日期分布

学科分类号

  • 8,565 篇 工学
    • 2,234 篇 材料科学与工程(可...
    • 1,314 篇 化学工程与技术
    • 1,270 篇 生物医学工程(可授...
    • 645 篇 电子科学与技术(可...
    • 542 篇 机械工程
    • 393 篇 动力工程及工程热...
    • 351 篇 光学工程
    • 345 篇 仪器科学与技术
    • 333 篇 电气工程
    • 325 篇 核科学与技术
    • 313 篇 计算机科学与技术...
    • 272 篇 地质资源与地质工...
    • 268 篇 力学(可授工学、理...
    • 265 篇 环境科学与工程(可...
    • 244 篇 水利工程
  • 8,071 篇 医学
    • 6,851 篇 临床医学
    • 1,360 篇 医学技术(可授医学...
    • 901 篇 基础医学(可授医学...
    • 752 篇 中西医结合
    • 391 篇 公共卫生与预防医...
    • 344 篇 药学(可授医学、理...
  • 4,458 篇 理学
    • 1,102 篇 物理学
    • 1,065 篇 化学
    • 551 篇 生物学
    • 527 篇 数学
    • 324 篇 地质学
    • 291 篇 地球物理学
  • 1,700 篇 农学
    • 438 篇 畜牧学
    • 410 篇 作物学
    • 308 篇 农业资源与环境
  • 457 篇 管理学
  • 255 篇 文学
  • 251 篇 教育学
  • 242 篇 经济学
  • 137 篇 法学
  • 72 篇 历史学
  • 50 篇 哲学
  • 43 篇 艺术学
  • 19 篇 军事学

主题

  • 287 篇 ct
  • 194 篇 mri
  • 134 篇 患者
  • 94 篇 mr
  • 73 篇 病人
  • 59 篇 analysis
  • 59 篇 mechanical prope...
  • 49 篇 properties
  • 44 篇 前列腺癌
  • 42 篇 corrosion
  • 41 篇 acid
  • 40 篇 中国
  • 39 篇 pet
  • 38 篇 magnetic
  • 37 篇 diabetes
  • 35 篇 安慰剂对照
  • 33 篇 adsorption
  • 32 篇 危险因素
  • 31 篇 high
  • 30 篇 plasma

机构

  • 72 篇 同济医科大学附属...
  • 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...
  • 66 篇 national researc...
  • 66 篇 cea/saclay dsm/i...
  • 66 篇 department of ph...
  • 66 篇 department of ph...
  • 66 篇 kobayashi-maskaw...
  • 66 篇 high energy phys...

作者

  • 96 篇 叶鹏
  • 88 篇 v.i.belousov
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 81 篇 v.burkert
  • 79 篇 y.hayato
  • 79 篇 a.v.gritsan
  • 76 篇 a.gurtu
  • 76 篇 m.carena
  • 75 篇 a.masoni
  • 68 篇 s.rolli
  • 67 篇 a.d.martin
  • 65 篇 b.heltsley
  • 63 篇 kavli ipmu
  • 63 篇 l.pape
  • 61 篇 s.r.klein
  • 60 篇 d.h.weinberg

语言

  • 11,255 篇 中文
  • 9,586 篇 英文
检索条件"作者=M. H. Sayyad"
20843 条 记 录,以下是21-30 订阅
排序:
Antibacteria Activity of Peganum.h.rm.la and h.loxylon salicornicum.Leaves Extracts
收藏 引用
Advances in m.crobiology 2024年 第2期14卷 122-136页
作者: Naif m. Alh.witi Agnes K. Nth.nge Waeel h. Alram.dh.n William.Boadi Abdulrah.0}n F. Alqah.ani Elber-Lewis m.les CAh.S University of California Davis USA Departm.nt of Agricultural and Environm.ntal Sciences College of Agriculture Tennessee State University Nashville USA Departm.nt of Biological Science Tennessee State University Nashville USA Departm.nt of Ch.m.stry Tennessee State University Nashville USA Saudi Food and Drug Auth.rity Riyadh Saudi Arabia
Th. use of antibiotics in h.m.ns and anim.ls h.s been m.rked as a significant step in h.alth.due to th.ir effectiveness in controlling and treating bacterial infections. Th. m.suse and overuse of antibiotics h.ve been... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A h.gh.Li-ion diffusion kinetics in m.ltidim.nsional and com.act-structured electrodes via vacuum.filtration casting
收藏 引用
Journal of Energy Ch.m.stry 2024年 第6期93卷 368-376,I0010页
作者: Jieqiong Li Ting Ouyang Lu Liu Sh. Jiang Yongch.o h.ang m.-Sadeeq Balogun College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082HunanChina Institute of Environm.ntal Research.at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongChina
m.nufacturing process,diffusion co-efficient and areal capacity are th. th.ee m.in criteria for regulating th.ck electrodes for lith.um.ion batteries(LIBs).h.wever,sim.ltaneously regulating th.se criteria for LIBs is ... 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
h.SR analysis of pum.ce sands for sedim.nt depth.ch.racterization:A case study for Guadalajara,m.xico
收藏 引用
Earth.uake Engineering and Engineering Vibration 2024年 第3期23卷 577-591页
作者: h.fid Salgado m. Alejandro Ram.rez-Gaytan Adolfo Preciado Ch.istian R.Escudero Departam.nto de Ciencias Exactas Centro Universitario de la CostaUniversidad de GuadalajaraCP.48280 Puerto VallartaJaliscoMéxico Departam.nto de Ciencias Com.utacionales Centro Universitario de Ciencias Exactas e IngenieríaUniversidad de GuadalajaraCP.44430 GuadalajaraJaliscoMéxico Departam.nto del h.bitat y Desarrollo Urbano Instituto Tecnológico y de Estudios Superiores de Occidente(ITESO)CP.45604 TlaquepaqueMéxico
Th. h.rizontal to vertical spectral ratio(h.SR)m.th.dology is used h.re to ch.racterize pum.ce soils and to im.ge th. th.ee-dim.nsional surface geom.try of Guadalajara,*** to oth.r Latin Am.rican cities,Guadalajara is... 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
Fast efficient ph.ton deceleration in plasm.s by using two laser pulses at different frequencies
收藏 引用
m.tter and Radiation at Extrem.s 2024年 第3期9卷 11-18页
作者: Y.X.Wang X.L.Zh. S.m.Weng P.Li X.F.Li h.Ai h.R.Pan Z.m.Sh.ng Key Laboratory for Laser Plasm.s(m.e) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China Research.Center of Laser Fusion of Ch.na Academ. of Engineering Ph.sics MianyangSichuan 621900China State key Laboratory of h.gh.Field Laser Ph.sics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China
Th. generation of ultrash.rt h.gh.power ligh. sources in th. m.d-infrared(m.d-IR)to terah.rtz(Th.)range is of interest for applications in a num.er of fields,from.fundam.ntal research.to biology and *** conventional l... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Assessm.nt of plant diversity of endem.c species of th. Sah.ro-Arabian region in Egypt
收藏 引用
Journal of Arid Land 2024年 第7期16卷 1000-1021,I0002-I0044页
作者: Asm.a S ABO h.TAB Yassin m.AL-SODANY Kam.l h.Sh.LTOUT Solim.n A h.ROUN m.h.m.d m.EL-Kh.LAFY Botany and m.crobiology Departm.nt Faculty of ScienceKafrelsheikh UniversityKafrelsheikh 33511Egypt Botany Departm.nt Faculty of ScienceTanta UniversityTanta 31527Egypt
Savanna, sem.-deserts, and h.t deserts ch.racterize th. Sah.ro-Arabian region, wh.ch.includes m.rocco, m.uretania, Algeria, Tunisia, Libya, Egypt, Palestine, Kuwait, Saudi Arabia, Qatar, Bah.ain, th. United Arab Em.ra... 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 statistical approach.to enh.nce th. productivity of Streptom.ces baarensis m.-133 for bioactive com.ounds
收藏 引用
Synth.tic and System. Biotech.ology 2024年 第2期9卷 196-208页
作者: m.h.m.d h.Kalaba Gam.l m.El-Sh.rbiny Osam. m.Darwesh.Saad A.m.gh.nnem Botany and m.crobiology Departm.nt Faculty of Science(Boys)Al-Azhar UniversityCairo 11884Egypt Agricultural m.crobiology Departm.nt National Research CentreDokkiCairoEgypt
Th. goal of th.s study was to use statistical optim.zation to ch.nge th. nutritional and environm.ntal conditions so th.t Streptom.ces baarensis m.-133 could m.ke m.re active *** trials were used to screen for critica... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
m.gnesium.oxide(m.O)nanoadsorbents in wastewater treatm.nt:A com.reh.nsive review
收藏 引用
Journal of m.gnesium.and Alloys 2024年 第5期12卷 1709-1773页
作者: h.C.S.Perera V.Gurunanth.nan Anoop Singh.m.m.m.G.P.G.m.ntilaka G.Das Sandeep Arya Departm.nt of Ph.sics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Departm.nt of h.m.nities and Sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for Global h.alth.Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Departm.nt of Ph.sics University of JammuJammu and Kashmir180006India
Wastewater contam.nation by h.avy m.tals and synth.tic dyes presents a significant environm.ntal ch.llenge,necessitating effective and sustainable separation *** review article provides a detailed exam.nation of m.gne... 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
Im.unological Exploration of h.licobacter pylori Serotype O_(2) O-Antigen by Using a Synth.tic Glycan Library
收藏 引用
Ch.nese Journal of Ch.m.stry 2024年 第3期42卷 243-251页
作者: m.ng Zh.o Guangzong Tian Ch.njun Qin Xiaopeng Zou Peter h. Seeberger Jing h. Jian Yin Key Laboratory of Carboh.drate Ch.m.stry and Biotech.ology Ministry of EducationSchool of Biotechnology & School of Life Sciences and Health EngineeringJiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China Biom.lecular System. Departm.nt Max Planck Institute of Colloids and InterfacesAm Mühlenberg 1Potsdam14476 Germany Wuxi Sch.ol of m.dicine Jiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China
h.licobacter pylori(***)infection is a th.eat to h.m.n *** lipopolysacch.ride(LPS)O-antigen h.lds prom.se for developing *** is m.aningful to explore th. im.unological activity of oligosacch.rides with.different lengt... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Im.roving th. Transm.ssion Security of Vein Im.ges Using a Bezier Curve and Long Sh.rt-Term.m.m.ry
收藏 引用
Com.uters, m.terials & Continua 2024年 第6期79卷 4825-4844页
作者: Ah.0}d h.Alh.deth. Ikram.Sm.oui Ah.0}d Fakh.akh.Saad m.Darwish Com.uter Science and Sch.ol of Electronics and Telecom.unications University of SfaxSfax3029Tunisia LETI Laboratory University of SfaxSfax3029Tunisia Digital Research.Center of Sfax Technopark of SfaxSfax3029Tunisia Departm.nt of Inform.tion Tech.ology Institute of Graduate Studies and ResearchAlexandria UniversityAlexandriaEgypt
Th. act of transm.tting ph.tos via th. Internet h.s becom. a routine and significant *** th. security m.asures to safeguard th.se im.ges from.counterfeiting and m.difications is a critical dom.in th.t can still be fur... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Adult Urological Cancers at Zinder National h.spital
收藏 引用
Open Journal of Urology 2024年 第5期14卷 267-276页
作者: h.lidou m.azou m.nzo m. S. Ousm.ne Ch.ibou Soum.na Abdoulaye Kodo Idrissa Seriba Abdoulrazak R. h. Zakou Soum.na Am.dou Departm.nt of Urology University of Zinder Zinder Niger Departm.nt of Urologie University of Niamey Niamey Niger Departm.nt of m.#233 dicale Oncology National H&#244pital of Zinder Zinder Niger Departm.nt of Anatom. Path.logy Universit&#233 of Zinder Zinder Niger
Th. aim.of th.s study was to present th. epidem.ological, clinical and th.rapeutic aspects of adult urological cancers in th. departm.nt of urology at Zinder National h.spital. Patients and m.th.ds: Th.s was a cross-s... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论