咨询与建议

限定检索结果

文献类型

  • 994 篇 期刊文献
  • 136 篇 会议
  • 9 篇 专利
  • 2 册 图书

馆藏范围

  • 1,140 篇 电子文献
  • 1 种 纸本馆藏

日期分布

学科分类号

  • 736 篇 工学
    • 166 篇 化学工程与技术
    • 121 篇 材料科学与工程(可...
    • 95 篇 环境科学与工程(可...
    • 86 篇 计算机科学与技术...
    • 56 篇 机械工程
    • 56 篇 生物医学工程(可授...
    • 52 篇 电气工程
    • 44 篇 软件工程
    • 42 篇 生物工程
    • 40 篇 电子科学与技术(可...
    • 40 篇 信息与通信工程
    • 37 篇 仪器科学与技术
    • 34 篇 石油与天然气工程
    • 31 篇 动力工程及工程热...
    • 26 篇 控制科学与工程
    • 24 篇 土木工程
    • 24 篇 食品科学与工程(可...
    • 23 篇 建筑学
  • 380 篇 理学
    • 191 篇 化学
    • 101 篇 生物学
    • 73 篇 物理学
    • 20 篇 数学
  • 264 篇 医学
    • 127 篇 临床医学
    • 71 篇 基础医学(可授医学...
    • 56 篇 药学(可授医学、理...
    • 31 篇 公共卫生与预防医...
    • 27 篇 中西医结合
  • 103 篇 农学
    • 51 篇 作物学
  • 79 篇 管理学
    • 36 篇 公共管理
    • 34 篇 管理科学与工程(可...
  • 19 篇 教育学
  • 10 篇 经济学
  • 5 篇 法学
  • 2 篇 军事学
  • 2 篇 艺术学
  • 1 篇 哲学
  • 1 篇 文学

主题

  • 18 篇 electrochemilumi...
  • 13 篇 矿井水
  • 11 篇 太湖
  • 9 篇 煤直接液化
  • 8 篇 磁共振成像
  • 8 篇 栽培技术
  • 8 篇 numerical simula...
  • 8 篇 产量
  • 7 篇 棉花
  • 7 篇 graphene
  • 6 篇 重金属
  • 6 篇 配合力
  • 6 篇 混凝
  • 6 篇 玉米
  • 5 篇 chemical structu...
  • 5 篇 microstructure
  • 5 篇 广州
  • 5 篇 农艺性状
  • 5 篇 monitoring
  • 5 篇 陆地棉

机构

  • 37 篇 中国矿业大学
  • 36 篇 jilin univ coll ...
  • 21 篇 jiangsu univ sci...
  • 19 篇 shandong univ sc...
  • 18 篇 江苏省环境监测中...
  • 16 篇 中国神华煤制油化...
  • 16 篇 beijing yes med ...
  • 15 篇 beijing univ tec...
  • 15 篇 吉林大学
  • 14 篇 青岛农业大学
  • 14 篇 江苏科技大学
  • 12 篇 河北工程大学
  • 11 篇 univ chinese aca...
  • 11 篇 college of elect...
  • 11 篇 武汉大学
  • 11 篇 china univ min &...
  • 10 篇 昆明市第三人民医...
  • 10 篇 college of life ...
  • 10 篇 univ chinese aca...
  • 9 篇 新疆农垦科学院棉...

作者

  • 175 篇 li xuwen
  • 53 篇 李旭文
  • 48 篇 wang xuwen
  • 40 篇 jin yongri
  • 37 篇 何绪文
  • 35 篇 he xuwen
  • 34 篇 xuwen li
  • 30 篇 yang lin
  • 28 篇 yang yimin
  • 27 篇 zhang song
  • 26 篇 qin xuwen
  • 26 篇 王旭文
  • 25 篇 gao xuwen
  • 24 篇 jing xuwen
  • 24 篇 hao dongmei
  • 24 篇 liu xuwen
  • 23 篇 qiang wu
  • 21 篇 余渝
  • 21 篇 孔宪辉
  • 21 篇 刘丽

语言

  • 645 篇 英文
  • 460 篇 中文
  • 34 篇 其他
  • 1 篇 德文
检索条件"作者=xuwen li"
1141 条 记 录,以下是21-30 订阅
排序:
Research Progress of Obstacle Detection Based on Monocular Vision  10
Research Progress of Obstacle Detection Based on Monocular V...
收藏 引用
10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP)
作者: Wu, Qiang Wei, Jie li, xuwen Beijing Univ Technol Coll Elect Informat & Control Engn Beijing Peoples R China Beijing Univ Technol Coll Life Sci & Bioengn Beijing Peoples R China
In recent years, unmanned autonomous vehicle navigation technology or UAV research is a hot topic in the field of machine vision, and obstacle detection is the basis of autonomous navigation. In this thesis, the autho... 详细信息
来源: 评论
Stereo matching algorithm of Color Image Based on Weber's law and Census  10
Stereo matching algorithm of Color Image Based on Weber's la...
收藏 引用
10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP)
作者: Wu, Qiang Zhao, Xiangnan li, xuwen Beijing Univ Technol Coll Elect Informat & Control Engn Beijing Peoples R China Beijing Univ Technol Coll Life Sci & Bioengn Beijing Peoples R China
The algorithm presented here is used on unmanned aerial vehicles system. In 2013,*** proposed a matching cost computation model(or function), This matching cost model combined three kinds of constraints, the cost func... 详细信息
来源: 评论
A modified image matching algorithm based on robust Hausdorff distance
收藏 引用
High Technology Letters 2014年 第1期20卷 29-33页
作者: 吴强 Wu Xuefeng li xuwen Jia Kebin College of Electronic Information and Control Engineering Beijing University of Technology College of Life Science and Bio-engineering Beijing University of Technology
Hausdorff distance measure is one of the widely adopted feature-based image matching algo- rithms due to its simplicity and accuracy. However, it is considered that its robustness still needs to be improved. In this p... 详细信息
来源: 评论
Novel graphite sheet used as an anodic material for high-performance microbial fuel cells
收藏 引用
MATERIALS LETTERS 2013年 105卷 24-27页
作者: Gao, Xia Zhang, Yezhen li, xuwen Ye, Jianshan S China Univ Technol Coll Chem & Chem Engn Guangzhou 510641 Guangdong Peoples R China
Novel graphite sheet (GTS) has been used as anodic catalyst in microbial fuel cell (MFC) base on Escherichia coli (ATCC 25922) and characterized by cyclic voltammogram (CV) and polarization curve. Findings from these ... 详细信息
来源: 评论
New type three-dimension silicon piezoresistive accelerometer
New type three-dimension silicon piezoresistive acceleromete...
收藏 引用
Proceedings of the 1999 3rd International Symposium on Test and Measurement, ISTM-99
作者: Xiong, Jijun li, xuwen Zhang, Wendong North China Inst of Technology Taiyuan China
A new type high-g(10000g) three-dimension silicon piezoresistive accelerometer is introduced in this paper. The sensor's principle, structure, mechanical analysis and measurement circuit are described. Finally, fa... 详细信息
来源: 评论
Preparation of Graphene Sheets with Covalently Bonded Fe3O4 for Magnetic Solid-Phase Extraction Applied to Organochlorine Pesticides in Orange Juice
收藏 引用
CHROMATOGRAPHIA 2016年 第5-6期79卷 345-353页
作者: Sun, Ting Yang, Jie li, Lanjie Wang, Xiaozhong li, xuwen Jin, Yongri Jilin Univ Coll Chem Jiefang St 2519 Changchun 130021 Peoples R China
In this paper, a graphene-based magnetic nano-composite (Fe3O4@G) was synthesized by covalent bonding. The presence of Fe3O4 was characterized by fourier transform infrared spectroscopy, X-ray diffraction, thermo-grav... 详细信息
来源: 评论
口腔腺样囊性癌肾转移1例报告
收藏 引用
中华泌尿外科杂志 2025年 第2期46卷 145-146页
作者: 朱亿豪 殷华奇 翟亚博 王文宽 李旭文 杨飞亚 邢念增 叶雄俊 国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院北京协和医学院肿瘤医院泌尿外科 北京100021 河南省肿瘤医院泌尿外科 郑州450000
口腔腺样囊性癌肾转移十分罕见。本文报道1例口腔腺样囊性癌术后双肾转移患者,左肾接受射频消融术,右肾行根治性肾切除术,手术顺利。术后3个月肌酐74μmol/L。本例采用的多学科综合诊疗模式,为双肾继发恶性肿瘤患者的诊疗提供一定的思路。
来源: 评论
A new self-tuning Kalman filter for tracking abrupt input change
A new self-tuning Kalman filter for tracking abrupt input ch...
收藏 引用
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011
作者: li, xuwen Wu, Qiang Wu, Shuicai College of Life Science and Bio-engineering Beijing University of Technology Beijing China College of Electronic Information and Control Engineering Beijing University of Technology Beijing China
This paper proposes a new self-tuning Kalman filter with good tracking ability for unknown noise statistics and unknown abrupt input change. The new filter can easily compute unknown abrupt input and steady-state gain... 详细信息
来源: 评论
Anti-rotation GNSS signal tracking algorithm based on symmetric dual antennas  22
Anti-rotation GNSS signal tracking algorithm based on symmet...
收藏 引用
8th International Conference on Computing and Artificial Intelligence, ICCAI 2022
作者: Zhang, Haidong li, xuwen Wu, Qiang Beijing University of Technology Information Department Beijing China
Due to periodic occlusion caused by rotating vehicles, the antenna cannot continuously receive GNSS signal. At the same time, the Doppler frequency shift caused by rotation also brings additional influence on GNSS sig... 详细信息
来源: 评论
Two New Baccharane Glycosides from Seeds of Impatientis balsamina L. with in vitro Growth Inhibitory Activity in Human Cancer A375 Cells
收藏 引用
Chemical Research in Chinese Universities 2017年 第5期33卷 753-757页
作者: WU Oian JIN Yongri YAO Hua liU Ying li Peng li xuwen College of Chemistry Jilin University Changchun 130021 P R. China Scientific Research Center China-Japan Union Hospital of Jilin University Changchun 130021 P. R. China
Two new baccharane-type glycosides(1 and 2), together with seven known baccharane-type glycosides (3u9) hosenkoside A, hosenkoside B, hosenkoside C, hosenkoside F, hosenkoside M, hosenkoside K and hosenko- side G ... 详细信息
来源: 评论