咨询与建议

限定检索结果

文献类型

  • 16,479 篇 期刊文献
  • 1,013 篇 会议
  • 690 册 图书
  • 22 篇 学位论文

馆藏范围

  • 18,023 篇 电子文献
  • 210 种 纸本馆藏

日期分布

学科分类号

  • 8,069 篇 工学
    • 2,745 篇 材料科学与工程(可...
    • 1,360 篇 化学工程与技术
    • 1,230 篇 生物医学工程(可授...
    • 926 篇 机械工程
    • 863 篇 电子科学与技术(可...
    • 832 篇 力学(可授工学、理...
    • 761 篇 动力工程及工程热...
    • 756 篇 电气工程
    • 705 篇 环境科学与工程(可...
    • 652 篇 计算机科学与技术...
    • 616 篇 冶金工程
    • 583 篇 地质资源与地质工...
    • 491 篇 水利工程
    • 452 篇 核科学与技术
  • 7,400 篇 医学
    • 6,215 篇 临床医学
    • 1,112 篇 基础医学(可授医学...
    • 1,017 篇 医学技术(可授医学...
    • 795 篇 公共卫生与预防医...
    • 600 篇 中西医结合
    • 562 篇 药学(可授医学、理...
  • 6,441 篇 理学
    • 2,085 篇 物理学
    • 1,951 篇 化学
    • 1,476 篇 生物学
    • 1,052 篇 天文学
    • 830 篇 数学
    • 706 篇 地球物理学
    • 675 篇 地质学
    • 460 篇 生态学
  • 1,889 篇 农学
    • 736 篇 作物学
    • 465 篇 畜牧学
  • 607 篇 管理学
  • 344 篇 经济学
  • 315 篇 教育学
  • 220 篇 法学
  • 172 篇 文学
  • 112 篇 哲学
  • 96 篇 历史学
  • 71 篇 艺术学
  • 21 篇 军事学

主题

  • 115 篇 mri
  • 113 篇 ct
  • 98 篇 患者
  • 64 篇 mr
  • 57 篇 analysis
  • 52 篇 mechanical prope...
  • 46 篇 diabetes
  • 45 篇 病人
  • 43 篇 hepatitis
  • 42 篇 properties
  • 38 篇 magnetic
  • 37 篇 phylogeny
  • 35 篇 安慰剂对照
  • 33 篇 performance
  • 32 篇 simulation
  • 31 篇 前列腺癌
  • 29 篇 corrosion
  • 29 篇 benin
  • 29 篇 adsorption
  • 28 篇 药物治疗

机构

  • 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 department of ph...
  • 66 篇 national researc...
  • 66 篇 cea/saclay dsm/i...
  • 66 篇 department of ph...
  • 66 篇 kobayashi-maskaw...
  • 66 篇 high energy phys...
  • 66 篇 department of ph...

作者

  • 87 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
  • 84 篇 v.burkert
  • 81 篇 y.hayato
  • 81 篇 a.v.gritsan
  • 77 篇 a.gurtu
  • 76 篇 m.carena
  • 75 篇 a.masoni
  • 71 篇 s.rolli
  • 69 篇 a.d.martin
  • 67 篇 b.heltsley
  • 66 篇 kavli ipmu
  • 66 篇 l.pape
  • 64 篇 s.r.klein
  • 63 篇 叶鹏
  • 60 篇 d.h.weinberg

语言

  • 9,365 篇 中文
  • 8,838 篇 英文
检索条件"作者=B. M. Vyas"
18204 条 记 录,以下是1-10 订阅
排序:
Im.rovem.nt of Position Accuracy with GAGAN and the Im.act of Scintillation on GNSS
收藏 引用
Positioning 2013年 第4期4卷 282-288页
作者: Surendra Sunda b. m. vyas S. V. Satish K. S. Parikh Airports Authority of India Ahmedabad India Airports Authority of India New Delhi India Departm.nt of Physics M. L. S. University Udaipur India Space Applications Centre Ahmedabad India
GAGAN is an Indian im.lem.ntation of Satellite b.sed Augm.ntation System.(Sb.S), developed jointly b. Airports Authority of India (AAI) and Indian Space Research Organisation (ISRO). It is in final operational phase w... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Prelim.nary Application of High-Frequency Ultrasound in the Differentiation of Pem.higus and b.llous Pem.higoid: An Ob.ervational Study
收藏 引用
International Journal of Derm.tology and Venereology 2024年 第3期7卷 155-159页
作者: Liu Y.-A. Cao R. Da m.-H. Dong Z.-b. Wang F. Departm.nt of Derm.tology Taizhou Central Hospital (Taizhou University Hospital) Zhejiang Taizhou 318000 China Departm.nt of Derm.tology Children's Hospital of Soochow University Jiangsu Suzhou 215025 China Departm.nt of Derm.tology Zhongda Hospital Southeast University Jiangsu Nanjing 210009 China
Ob.ective: Ultrasonography is a diagnostic im.ging technique used to visualize sub.utaneous b.dy structures for identification of possib.e pathologies. In this study, we aim.d to explore the clinical significance of h... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Soils in extraterrestrial space: Need for studies under m.crogravity
收藏 引用
Pedosphere 2024年 第1期34卷 13-14页
作者: m.b.KIRKHAm Departm.nt of Agronom. Kansas State UniversityManhattan KS 66506USA
With the increased interest of plants in space, gravity cannot b. ignored when studying soil-plant-water relations. Therefore, it is im.ortant to understand the water relations of soils under zero gravity in space or ... 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
Direct m.crowave leaching conditions of rare earth elem.nts in fluorescent wastes
收藏 引用
Journal of Rare Earths 2024年 第6期42卷 1165-1174,I0007页
作者: A.b.len b.b.rol m.N.Saridede S.S.Kaplan m.S.Sonm.z Departm.nt of m.tallurgical and m.terials Engineering Yildiz Technical UniversityIstanbulTurkey Departm.nt of Chem.cal Engineering and m.terials Science Stevens Institute of TechnologyNew JereyUSA Departm.nt of m.tallurgical and m.terials Engineering Istanbul Technical UniversityIstanbulTurkey
The lum.nescent phosphor powder in the fluorescent lam. constitutes 2%of the lam.’s *** can b. m.ntioned that fluorescent wastes are a crucial raw m.terial to produce rare earth *** the present study,m.crowave leachi... 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
Sim.lation and experim.ntation of Propeller-Savonius turb.ne tested underwater surface
收藏 引用
CLEAN ENERGY 2024年 第3期8卷 20-33页
作者: Wuryanti, Sri Sasono, Teguh m.nunggal, b.m.0}ng P. m.rsanto, Wahyu b. Sugianto Politekn Negeri b.ndung Politeknik Negeri Bandung Bandung Indonesia Politekn Negeri Padang Dept Mech Engn Padang Indonesia
Indonesia's vast m.ritim. territory offers a unique opportunity for harnessing the potential Energy of seawater currents. This study explores the effectiveness of a com.0}ned Savonius and propeller-type turb.ne system.... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Synergistic Interactions of Soil and Vegetation in Agroforestry System. in m.tigating Clim.te Change in Upper East Region, Ghana
收藏 引用
Am.rican Journal of Clim.te Change 2024年 第2期13卷 140-162页
作者: Joshua A. Adom.0}re Ab.ul-Wahab.m. Im.ro Eunice Essel Nang b. Douti Departm.nt of Environm.ntal Science C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana Departm.nt of Forestry and Forest Resources m.nagem.nt University for Development Studies Tamale Ghana Departm.nt of Crop Science and b.otechnology C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana
Clim.te change has b.en a glob.l pandem.c with its adverse im.acts affecting environm.nts and livelihoods. This has b.en largely attrib.ted to anthropogenic activities which generate large am.unts of Green House Gases... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Quantum.correlations and entanglem.nt in coupled optom.chanical resonators with photon hopping via Gaussian interferom.tric power analysis
收藏 引用
Chinese Physics b 2024年 第5期33卷 204-211页
作者: Y.Lahlou b.m.roufi m.Daoud LPHE-m. Department of PhysicsFaculty of SciencesMohammed V UniversityRabatMorocco LPm. Department of PhysicsFaculty of SciencesIbn Tofail UniversityKénitraMorocco
Quantum.correlations that surpass entanglem.nt are of great im.ortance in the realm. of quantum.inform.tion processing and quantum.***,for quantum.system. prepared in pure states,it is difficult to differentiate b.twe... 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
Sem.-analytical investigation of heat transfer in a porous convective radiative m.ving longitudinal fin exposed to m.gnetic field in the presence of a shape-dependent trihyb.id nanofluid
收藏 引用
Applied m.them.tics and m.chanics(English Edition) 2024年 第1期45卷 197-216页
作者: C.G.PAVITHRA b.J.GIREESHA m.L.KEERTHI Departm.nt of PG Studies and Research in m.them.tics Kuvempu UniversityShankaraghatta 577451India Departm.nt of m.them.tics and Statistics M.S.Ramaiah University of Applied SciencesBengaluru 560058India
The therm.l exam.nation of a non-integer-ordered m.b.le fin with a m.gnetism.in the presence of a trihyb.id nanofluid(Fe_3O_4-Au-Zn-b.ood) is carried out. Three types of nanoparticles, each having a different shape, 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
Im.act on Soil Organic C and Total Soil N from.Cool- and Warm.Season Legum.s Used in a Green m.nure-Forage Cropping System
收藏 引用
Agricultural Sciences 2024年 第3期15卷 333-357页
作者: Clark b. Neely Francis m. Rouquette Jr. Cristine L.S. m.rgan Frank m. Hons William.L. Rooney Gerald R. Sm.th Departm.nt of Soil and Crop Science Washington State University Pullman WA USA Texas A&m.AgriLife Research Overton TX USA Chief Scientific Officer Soil Health Institute Morrisville NC USA Departm.nt of Soil and Crop Science Texas A&M University College Station TX USA
Annual forage legum.s are im.ortant com.onents of livestock production system. in East Texas and the southeastern US. Forage legum.s contrib.te nitrogen (N) to cropping system. through b.ological N fixation, and their... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
b.ochem.cal Liver Functions and m.lecular Identification of Fasciola hepatica from.Experim.ntally Infected Rat m.del
收藏 引用
Open Journal of Anim.l Sciences 2024年 第2期14卷 88-100页
作者: Om.ia m. Kandil Em.d b. Ata m.rgarita P. Gab.ashanska Hatem.A. Shalab. Tam.r H. Ab. El-Aziz Noha m. F. Hassan Soad m. Nasr m.ham.d A. Helal Eb.esam.m. Al-Olayan Departm.nt of Parasitology & Anim.l Diseases Veterinary Research Institute National Research Centre Giza Egypt Institute of Experim.ntal m.rphology Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria Departm.nt of Zoology Collage of Science King Saud University Riyadh Saudi Arabia
The current study was perform.d to evaluate the liver function status as well as m.lecular characterization of the recovered worm. in rats experim.ntally infected with F. hepatica. Sixteen m.le Wister rats aged 30 day... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论