咨询与建议

限定检索结果

文献类型

  • 1,005 篇 期刊文献
  • 32 篇 会议
  • 2 篇 学位论文

馆藏范围

  • 1,039 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 519 篇 医学
    • 417 篇 临床医学
    • 28 篇 中西医结合
    • 26 篇 公共卫生与预防医...
    • 23 篇 中药学(可授医学、...
    • 13 篇 药学(可授医学、理...
  • 286 篇 工学
    • 43 篇 材料科学与工程(可...
    • 38 篇 化学工程与技术
    • 24 篇 电子科学与技术(可...
    • 23 篇 机械工程
    • 23 篇 建筑学
    • 17 篇 动力工程及工程热...
    • 17 篇 计算机科学与技术...
    • 15 篇 水利工程
    • 15 篇 环境科学与工程(可...
    • 14 篇 电气工程
    • 13 篇 仪器科学与技术
    • 13 篇 土木工程
  • 144 篇 理学
    • 36 篇 生物学
    • 28 篇 化学
    • 24 篇 数学
    • 14 篇 地质学
    • 12 篇 物理学
    • 12 篇 生态学
  • 121 篇 农学
    • 34 篇 作物学
    • 27 篇 畜牧学
    • 20 篇 农业资源与环境
    • 17 篇 林学
    • 13 篇 兽医学
  • 43 篇 管理学
    • 17 篇 管理科学与工程(可...
  • 32 篇 经济学
    • 31 篇 应用经济学
  • 19 篇 文学
  • 12 篇 教育学
  • 10 篇 艺术学
  • 9 篇 法学
  • 3 篇 历史学
  • 2 篇 哲学

主题

  • 15 篇 covid-19
  • 15 篇 disease
  • 14 篇 cancer
  • 13 篇 case report
  • 13 篇 nursing
  • 12 篇 brazil
  • 11 篇 and
  • 11 篇 epidemiology
  • 8 篇 liver
  • 8 篇 resistance
  • 8 篇 infection
  • 7 篇 benin
  • 7 篇 diagnosis
  • 7 篇 inflammatory bow...
  • 6 篇 analysis
  • 6 篇 cirrhosis
  • 6 篇 health
  • 6 篇 simulation
  • 6 篇 children
  • 6 篇 水稻

机构

  • 14 篇 o paulo brazil
  • 11 篇 the medical scho...
  • 6 篇 上海市农业科学院...
  • 5 篇 center for high ...
  • 5 篇 a brazil
  • 5 篇 infn sezione di ...
  • 5 篇 instituto de fis...
  • 5 篇 infn sezione di ...
  • 5 篇 infn sezione di ...
  • 5 篇 universidade fed...
  • 5 篇 nsc kharkiv inst...
  • 5 篇 european organiz...
  • 5 篇 institute of par...
  • 5 篇 unigranrio medic...
  • 5 篇 infn sezione di ...
  • 5 篇 nikhef national ...
  • 5 篇 oliver lodge lab...
  • 5 篇 i.physikalisches...
  • 5 篇 department of ph...
  • 5 篇 nikhef national ...

作者

  • 17 篇 daniel almeida d...
  • 10 篇 thiago sande mig...
  • 8 篇 lamara laguardia...
  • 8 篇 min ro lee
  • 8 篇 nayrton kalys cr...
  • 8 篇 lorita marlena f...
  • 6 篇 李丁鲁
  • 6 篇 李茂柏
  • 6 篇 朴钟泽
  • 6 篇 isis almeida
  • 6 篇 fabrício freire ...
  • 5 篇 e.aslanides
  • 5 篇 b.fang
  • 5 篇 j.h.lopes
  • 5 篇 h.wu
  • 5 篇 b.souza de paula
  • 5 篇 t.maltsev
  • 5 篇 c.burr
  • 5 篇 m.de cian
  • 5 篇 f.teubert

语言

  • 785 篇 英文
  • 254 篇 中文
检索条件"作者=alejan.ro almeida"
1039 条 记 录,以下是51-60 订阅
排序:
A comparative study for the performance of encased granular columns
收藏 引用
Journal of rock Mechanics and Geotechnical Engineering 2019年 第2期11卷 379-388页
作者: Iman Hosseinpour Cristian Soriano Marcio S.S.almeida Department of Civil Engineering Faculty of EngineeringThe University of Guilan Graduate School in Research and Engineering (COPPE) Federal University of Rio de Janeiro (UFRJ)
This paper describes a three-dimensional(3D) numerical analysis of a test embankment on geotextileencased columns(GECs), in comparison with two-dimensional(2D) axisymmetric and plane strain analyses. The 3D numerical ... 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
Aspects of Indigenous Participation in Brazilian Literature
收藏 引用
Journal of Foreign Languages and Cultures 2023年 第2期7卷 25-38页
作者: Fabio almeida de Carvalho Federal Universityof roraima
The article both presents how,from the end of the 1980s onwards,native peoples have begun to occupy certain spaces of textual production and circulation that they had not previously occupied in the Brazilian cultural ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A left-sided periappendiceal abscess in an adult with intestinal malrotation
收藏 引用
World Journal of Gastroenterology 2006年 第33期12卷 5399-5400页
作者: Min ro Lee Jong Hun Kim Yong Hwang Young Kon Kim Department of Surgery Chonbuk National University Medical School San 2-20Geumam-dong Deokjin-gu Jeonju 561-756 South Korea Research Institute of ClinicalMedicine Chonbuk National University Medical School San2-20 Geumam-dong Deokjin-gu Jeonju 561-756 South Korea Department of Surgery Chonbuk National University Medical School San 2-20Geumam-dong Deokjin-gu Jeonju 561-756 South Korea Department of Diagnostic Radiology ChonbukNational University Medical School San 2-20 Geumam-dongDeokjin-gu Jeonju 561-756 South Korea
Left-sided periappendiceal abscesses occur in association with two types of congenital anomaly: intestinal malrotation and situs inversus. It is diffi cult to obtain an accurate preoperative diagnosis of these abscess... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Pseudo-discontinuum model to simulate hard-rock mine pillars
收藏 引用
Underground Space 2023年 第4期11卷 81-95页
作者: Erick ro genes Alessandra dos Santos Gomes Marcio Muniz de Farias Leandro Lima Rasmussen Faculty of Technology University of BrasiliaDF 70910-900BrasiliaBrazil
In this study,the pseudo-discontinuum modeling technique,called continuum Voronoi block model(CVBM),was applied to repre-sent the behavior of hard-rock pillars from underground mines subjected to high field *** CVBM’... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Amino acid digestibility in low-fat distillers dried grains with solubles fed to growing pigs
收藏 引用
Journal of Animal Science and Biotechnology 2014年 第4期5卷 414-420页
作者: Shelby Marie Curry Diego Mario David Labadan Navarro Ferdinando Nielsen almeida Juliana Abranches Soares almeida Hans Henrik Stein Department of Animal Sciences University of Illinois
The objective of this experiment was to determine the standardized ileal digestibility(SID) of amino acids(AA) in 3sources of distillers dried grains with solubles(DDGS) with different concentrations of *** grow... 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
北京2022年冬奥会与冬残奥会延庆赛区,北京,中国
收藏 引用
世界建筑 2024年 第4期 42-45页
作者: China Architecture Design&Research Group Beijing General Municipal Engineering Design&Research Institude Co.Ltd Ecosign Moutain Resort Planners Ltd Planungsbüro Deyle GmbH 中国建筑设计研究院有限公司 北京市市政工程设计研究总院有限公司 加拿大伊克森山地景区规划有限公司 德国戴勒有限公司
北京2022年冬奥会与冬残奥会延庆赛区核心区规划和场馆及配套设施设计始于2017年1月,于2021年竣工投入使用。项目位于燕山山脉军都山以南的小海坨南麓,风景秀丽、山高林密、地形复杂、用地狭促,是最具挑战性的北京冬奥赛区。延庆赛区的... 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
Truncated States Obtained by Iteration
收藏 引用
Chinese Physics Letters 2008年 第2期25卷 517-520页
作者: W. B. Cardoso N. G. de almeida Instituto de Física Universidade Federal de Goiás 74.001-970 Goiania (GO) Brazil Núcleo de Pesquisas em Física Universidade Católica de Goiá s 74.605-220 Goiania (GO) Brazil
We introduce the concept of truncated states obtained via iterative processes (TSI) and study its statistical features, making an analogy with dynamical systems theory (DST). As a specific example, we have studied... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Teleportation of Entangled States through Divorce of Entangled Pair Mediated by a Weak Coherent Field in a High-Q Cavity
收藏 引用
Chinese Physics Letters 2008年 第7期25卷 2488-2491页
作者: W. B. Cardoso N. G. de almeida Instituto de Ffsica Universidade Federal de Goiaes 74.001-970 Goiaenia (GO) Brazil Nucleo de Pesquisas em Fisica Universidade Catoelica de Goids 74.605-080 Goiania (GO) Brazil
We propose a scheme to partially teleport an unknown entangled atomic state. A high-Q cavity, supporting one mode of a weak coherent state, is needed to accomplish this process. By partial teleportation we mean that t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
An Enhanced Jacobi Precoder for Downlink Massive MIMO Systems
收藏 引用
Computers, Materials & Continua 2021年 第7期68卷 137-148页
作者: Park Chan-Yeob Hyun-ro Jae Jun-Yong Jang Song Hyoung-Kyu Department of Information and Communication Engineering and Convergence Engineering for Intelligent DroneSejong UniversitySeoul05006Korea
Linear precoding methods such as zero-forcing(ZF)are near optimal for downlink massive multi-user multiple input multiple output(MIMO)systems due to their asymptotic channel ***,as the number of users increases,the co... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
NON-INSTANTANEOUS IMPULSIVE FRACTIONAL DIFFERENTIAL EQUATIONS WITH STATE DEPENDENT DELAY AND PRACTICAL STABILITY
收藏 引用
Acta Mathematica Scientia 2021年 第5期41卷 1699-1718页
作者: Ravi AGARWAL Ricardo almeida Snezhana HRISTOVA Donal O'REGAN Department of Mathematics Texas A&M University-KingsvilleKingsvilleTX 78363USA Distinguished University Professor of Mathematics Florida Institute of TechnologyMelbourneFL 32901USA Center for Research and Development in Mathematics and Applications Department of MathematicsUniversity of AveiroPortugal Department of Applied Mathematics and Modeling University of Plovdiv Paisii HilendarskiPlovdivBulgaria School of Mathematics Statistics and Applied MathematicsNational University of IrelandGalwayIreland
Nonlinear delay Caputo fractional differential equations with non-instantaneous impulses are studied and we consider the general case of delay,depending on both the time and the state *** case when the lower limit 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