咨询与建议

限定检索结果

文献类型

  • 31,951 篇 期刊文献
  • 358 篇 会议
  • 119 册 图书
  • 16 篇 学位论文

馆藏范围

  • 32,391 篇 电子文献
  • 54 种 纸本馆藏

日期分布

学科分类号

  • 15,517 篇 工学
    • 2,335 篇 化学工程与技术
    • 2,196 篇 材料科学与工程(可...
    • 1,235 篇 机械工程
    • 1,048 篇 计算机科学与技术...
    • 918 篇 电气工程
    • 811 篇 电子科学与技术(可...
    • 793 篇 仪器科学与技术
    • 792 篇 软件工程
    • 752 篇 动力工程及工程热...
    • 672 篇 生物医学工程(可授...
    • 647 篇 控制科学与工程
    • 644 篇 地质资源与地质工...
    • 592 篇 土木工程
    • 579 篇 水利工程
    • 559 篇 环境科学与工程(可...
  • 9,571 篇 医学
    • 6,118 篇 临床医学
    • 1,157 篇 中西医结合
    • 1,069 篇 药学(可授医学、理...
    • 1,048 篇 基础医学(可授医学...
    • 841 篇 医学技术(可授医学...
    • 721 篇 公共卫生与预防医...
  • 6,073 篇 理学
    • 1,402 篇 化学
    • 1,040 篇 生物学
    • 808 篇 物理学
    • 795 篇 数学
    • 618 篇 生态学
  • 3,483 篇 农学
    • 1,100 篇 作物学
    • 760 篇 农业资源与环境
  • 1,645 篇 管理学
    • 741 篇 管理科学与工程(可...
  • 676 篇 教育学
  • 660 篇 经济学
    • 590 篇 应用经济学
  • 374 篇 法学
  • 324 篇 文学
  • 199 篇 艺术学
  • 111 篇 军事学
  • 100 篇 哲学
  • 100 篇 历史学

主题

  • 93 篇 数值模拟
  • 86 篇 凋亡
  • 83 篇 磁共振成像
  • 75 篇 危险因素
  • 67 篇 基因
  • 66 篇 力学性能
  • 65 篇 小麦
  • 65 篇 治疗
  • 64 篇 合成
  • 64 篇 免疫组织化学
  • 63 篇 遗传算法
  • 61 篇 耐药性
  • 59 篇 细胞凋亡
  • 58 篇 大鼠
  • 57 篇 诊断
  • 56 篇 吸附
  • 49 篇 细胞增殖
  • 47 篇 并发症
  • 46 篇 分析
  • 41 篇 表面活性剂

机构

  • 320 篇 浙江大学
  • 238 篇 吉林大学
  • 202 篇 上海交通大学
  • 198 篇 北京大学
  • 184 篇 同济大学
  • 178 篇 中国科学院研究生...
  • 175 篇 清华大学
  • 174 篇 四川大学
  • 172 篇 山东大学
  • 166 篇 东南大学
  • 143 篇 华中科技大学
  • 140 篇 暨南大学
  • 129 篇 哈尔滨工业大学
  • 113 篇 西北农林科技大学
  • 110 篇 天津大学
  • 105 篇 中国地质大学
  • 103 篇 大连理工大学
  • 102 篇 首都医科大学附属...
  • 101 篇 中国石油大学
  • 98 篇 沈阳农业大学

作者

  • 116 篇 吕军
  • 91 篇 吕刚
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 83 篇 v.i.belousov
  • 81 篇 吕清
  • 81 篇 v.burkert
  • 79 篇 y.hayato
  • 76 篇 a.v.gritsan
  • 73 篇 吕波
  • 72 篇 a.gurtu
  • 70 篇 吕品
  • 69 篇 m.carena
  • 68 篇 a.masoni
  • 64 篇 kavli ipmu
  • 64 篇 l.pape
  • 52 篇 王新房

语言

  • 29,865 篇 中文
  • 2,578 篇 英文
  • 1 篇 日文
检索条件"作者=U.A.lar"
32444 条 记 录,以下是1-10 订阅
排序:
Petrographic composition of coal within the Benue Trough,Nigeria and a consideration of the paleodepositional setting
收藏 引用
International Journal of Coal Science & Technology 2022年 第3期9卷 67-90页
作者: A.D.Mangs N.J.Wagner O.M.Moroeng u.a.lar DSI-NRF CIMERA Department of GeologyUniversity of JohannesburgJohannesburgSouth Africa Department of Geology University of JosJosNigeria
The petrographic composition of Cretaceous-age coals hosted in the Benue Trough,Nigeria is presented and discussed in terms of the paleodepositional settings that infuenced the coal-bearing *** Benue Trough is a faile... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A new Late Miocene Hystrix(Hystricidae,Rodentia)from Turkey
收藏 引用
Integrative Zoology 2024年 第3期19卷 548-563页
作者: Kazım HALAÇlar Ayla SEVIM EROL Tolga KÖROG˘Lu Paul RuMMY Tao DENG Serdar MAYDA Natural History Application and Research Centre Ege UniversityTurkey Key Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijingPeople’s Republic of China Department of Anthropology Faculty of Languages and HistoryGeographyAnkara UniversityTurkey Department of Biology Faculty of SciencesEge UniversityTurkey
TheÇorakyerler fossil locality in Anatolia reveals unique faunal *** study introduces Hystrix kayae ***.,a new Late Miocene porcupine initially classified as Hystrix *** et al.,*** finding expands our knowledge of Lat... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Bubble coalescence in interacting system of DNA molecules
收藏 引用
International Journal of Biomathematics 2024年 第4期17卷 195-216页
作者: u.A.Rozikov V.I.Romanouskiy Institute of Mathematics 9 Universitet Street100174 Tashkent uzbekistan AKFA university National Park StreetBarkamol MFY Mirzo-Ulugbek District111221 Tashkent uzbekistan National university of uzbekistan 4Universitet Street 100174 TashkentUzbekistan
We consider two models of interacting DNA molecules:First is(four parametric)bubble coalescence model in interacting DNAs(shortly:BCI-DNA).Second is(three parametric)bubble coalescence model in a condensed DNA molecul... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Variational data encoding and correlations in quantum-enhanced machine learning
收藏 引用
Chinese Physics B 2024年 第9期33卷 298-306页
作者: Ming-Hao Wang Hua L¨u School of Physics Hubei UniversityWuhan 430062China School of Science Hubei University of TechnologyWuhan 430068China
Leveraging the extraordinary phenomena of quantum superposition and quantum correlation,quantum computing offers unprecedented potential for addressing challenges beyond the reach of classical *** paper tackles two pi... 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
Fuzzy and IRLNC-based routing approach to improve data storage and system reliability in IoT
收藏 引用
Intelligent and Converged Networks 2024年 第1期5卷 68-80页
作者: u.Indumathi A.R.Arunachalam the Department of Computer Science and Engineering Dr.M.G.R.Educational and Research InstituteChennai 600095India
Internet of Things(IoT)based sensor network is largely utilized in various field for transmitting huge amount of data due to their ease and cheaper *** performing this entire process,there is a high possibility for da... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Lump and travelling wave solutions of a(3+1)-dimensional nonlinear evolution equation
收藏 引用
Journal of Ocean Engineering and Science 2024年 第2期9卷 164-172页
作者: Kalim u.Tariq Raja Nadir Tufail Department of Mathematics Mirpur University of Science and TechnologyMirpurAJK 10250Pakistan
In this paper,the(3+1)-dimensional nonlinear evolution equation is studied *** bilinear form of given model is achieved by using the Hirota bilinear *** a result,the lump waves and col-lisions between lumps and period... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Leveraging a new thermosensor for heat-smart future agriculture
收藏 引用
Plant Communications 2024年 第9期5卷 1-4页
作者: Ali Raza Qamar u.Zaman Zhangli Hu Guangdong Key Laboratory of Plant Epigenetics College of Life Sciences and OceanographyShenzhen UniversityShenzhen 518060China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Shenzhen Engineering Laboratory for Marine Algal Biotechnology Guangdong Technology Research Center for Marine Algal BiotechnologyCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518060China Shenzhen Collaborative Innovation Public Service Platform for Marine Algae Industry Longhua Innovation Institute for BiotechnologyCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518060China School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication) Hainan Yazhou-Bay Seed LaboratoryHainan UniversitySanya 572025China Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture School of Tropical CropsHainan UniversityHaikou 570228China
As global temperatures rise owing to climate change,crops are increasingly subjected to conditions that surpass their optimal temperature ranges,leading to heat stress(HS).HS impacts many morpho-physiological,biochemi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Latest Carboniferous-Early Permian Rifting of the Northern Gondwanan Margin and the Opening of the Northern Neotethys: New Evidence from the Carboniferous and Permian Foraminiferal Assemblages from the Beyşehir-Hoyran Nappes, Central Taurides(Southern Turkey)
收藏 引用
Journal of Earth Science 2024年 第2期35卷 394-415页
作者: Cengiz Okuyucu u.Kagan Tekin Cagri Guzgun Kaan Sayit Department of Geological Engineering Konya Technical UniversityKonya42250Turkey Department of Geological Engineering Hacettepe UniversityAnkara06800Turkey Department of Geological Engineering Middle East Technical UniversityAnkara06800Turkey
The Beyşehir-Hoyran Nappes,one of the tectonostratigraphic units of the Taurides,are thought to be originated from the Izmir-Ankara Ocean(northern branch of Neotethys).In this study,Late Paleozoic rock units from the ... 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
Energy exchange between charged relativistic fluids in f(T) gravity
收藏 引用
Communications in Theoretical Physics 2024年 第10期76卷 108-120页
作者: Z Yousaf u A Khokhar Nasser Bin Turki T Suzuki Department of Mathematics University of the Punjab Quaid-i-Azam Campus Department of Mathematics College of Science King Saud University Department of Regional Management Faculty of Management Fukushima College
This study focuses on the effects of a polytropic fluid on a charged gravitational source within f(T) gravity, where T is the torsion scalar. We investigate how the electromagnetic field affects the flow of energy in ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
On some new travelling wave structures to the(3+1)-dimensional Boiti-Leon-Manna-Pempinelli model
收藏 引用
Journal of Ocean Engineering and Science 2024年 第2期9卷 99-111页
作者: Kalim u.Tariq Ahmet Bekir Muhammad Zubair Department of Mathematics Mirpur University of Science and TechnologyMirpur 10250 AJKPakistan Neighbourhood of Akcaglan Imarli StreetNumber:28/4Eskisehir26030 Turkey
In this article,the(1/G')-expansion method,the Bernoulli sub-ordinary differential equation method and the modified Kudryashov method are implemented to construct a variety of novel analytical solutions to the(3+1)-di... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论