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Simulation of viscoelastic behavior of defected rock by using numerical manifold method
Feng REN, Lifeng FAN, Guowei MA
《结构与土木工程前沿(英文)》 2011年 第5卷 第2期 页码 199-207 doi: 10.1007/s11709-011-0102-1
关键词: stress wave propagation defected rock numerical manifold method viscoelastic behavior storage modulus loss modulus
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1036-1053 doi: 10.1007/s11709-019-0535-5
关键词: numerical manifold method rotation large deformation Green strain open-close iteration
Face recognition based on subset selection via metric learning on manifold
Hong SHAO,Shuang CHEN,Jie-yi ZHAO,Wen-cheng CUI,Tian-shu YU
《信息与电子工程前沿(英文)》 2015年 第16卷 第12期 页码 1046-1058 doi: 10.1631/FITEE.1500085
关键词: Face recognition Sparse representation Manifold structure Metric learning Subset selection
罗磊,李跃华,栾英宏
《中国工程科学》 2010年 第12卷 第3期 页码 77-81
针对传统被动毫米波金属目标识别方法中特征提取、选择的缺点,采用Laplacian特征映射流形学习算法发现了金属目标回波信号短
关键词: 流形学习 Laplacian特征映射 非线性降维 低维流形 毫米波
徐雪松,宋东明,张谞,许满武,刘凤玉
《中国工程科学》 2009年 第11卷 第2期 页码 82-87
为了提高高维数据集合离群数据挖掘效率,提出了一种基于流形学习的离群点检测算法。局部线性嵌入( locally linear embedding, LLE)算法是流形学习中有效的非线性降维方法,它的优势在于只定义唯一的 参数,即邻域数。根据LLE算法的思想寻找样本数据的内在嵌入分布,并通过邻域数选取和降维后数据点之 间的距离调整,提高了数据集中离群点发现效率,同时利用离群点权值判别式进行权值数据判定,根据权值 的大小标识出数据集中的离群点,仿真实验的结果表明了该方法能够有效地发现高维数据集中的离群点。 与此同时,该算法具有参数估计简单、参数影响不大等优点,该算法为离群点检测问题的机器学习提供了一 条新的途径。
Iterative HOEO fusion strategy: a promising tool for enhancing bearing fault feature
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0725-z
关键词: higher order energy operator fault diagnosis manifold learning rolling element bearing information fusion
利用流形学习进行基于图像的三维模型检索 None
Pan-pan MU, San-yuan ZHANG, Yin ZHANG, Xiu-zi YE, Xiang PAN
《信息与电子工程前沿(英文)》 2018年 第19卷 第11期 页码 1397-1408 doi: 10.1631/FITEE.1601764
Chi ZHOU, Ying-hui LI, Wu-ji ZHENG, Peng-wei WU
《信息与电子工程前沿(英文)》 2019年 第20卷 第2期 页码 292-299 doi: 10.1631/FITEE.1700435
马洪琪
《中国工程科学》 2002年 第4卷 第11期 页码 37-41
广蓄电站高压岔管的P. D值达5.8×104kN·m,未采用常规的钢岔管,在钢筋混凝土岔管设计原则上,主要依靠围岩承担水压力。施工中从控制爆破、混凝土质量、高压灌浆等方面实现设计意图。这种结构安全可靠,投资省,效益好。广蓄斜井引进了一套间断式的斜井滑模,经改进和完善,获得了成功。在天荒坪抽水蓄能电站长斜井施工中,研制了自主知识产权的XHM-7型斜井滑模设备,实现了斜井混凝土衬砌的连续滑升,显示了该设备结构新颖、安全可靠、速度快、造价低的优势。以上两项新技术的成功实践,为我国类似工程的推广和应用提供了有益的经验。
Study on emissions reduction of DMCC engine with oxidation catalyst
YAO Chunde, LIU Xibo, WANG Hongfu, LIU Xiaoping, CHENG Chuanhui, WANG Yinshan
《能源前沿(英文)》 2007年 第1卷 第4期 页码 441-445 doi: 10.1007/s11708-007-0064-4
关键词: combustion manifold DMCC emission diesel/methanol compound
网络系统行为效用计算——概念与原理 Article
胡昌振
《工程(英文)》 2018年 第4卷 第1期 页码 78-84 doi: 10.1016/j.eng.2018.02.010
王婷,陈海耿,赵巍,崔苗
《中国工程科学》 2007年 第9卷 第3期 页码 97-102
所建立的小型制冷系统模型包括压缩机、冷凝器、膨胀阀和蒸发器四个部件模型以及使系统封闭的 充灌量模型,实现了所有相关物性参数计算的程序化以便于模型的数值求解。在蒸发器模型中提出了析湿系数 的新算法,加速了模型的计算。用所建立的模型模拟工作参数的变化对系统性能的影响,其结果与实际规律相 符合,证明了该模型的正确性。根据模型得出的定量结果可分析各性能参数变化的相互影响,并对性能参数的 敏感性进行分析,为系统优化和控制提供理论依据。此外,换热器模型还可独立用于各种换热器性能的分析与优化。
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《医学前沿(英文)》 2017年 第11卷 第3期 页码 432-439 doi: 10.1007/s11684-017-0511-1
Traditional Chinese patent medicines are widely used to treat stroke because it has good efficacy in the clinical environment. However, because of the lack of knowledge on traditional Chinese patent medicines, many Western physicians, who are accountable for the majority of clinical prescriptions for such medicine, are confused with the use of traditional Chinese patent medicines. Therefore, the aid-decision method is critical and necessary to help Western physicians rationally use traditional Chinese patent medicines. In this paper, Manifold Ranking is employed to develop the aid-decision model of traditional Chinese patent medicines for stroke treatment. First, 115 stroke patients from three hospitals are recruited in the cross-sectional survey. Simultaneously, traditional Chinese physicians determine the traditional Chinese patent medicines appropriate for each patient. Second, particular indicators are explored to characterize the population feature of traditional Chinese patent medicines for stroke treatment. Moreover, these particular indicators can be easily obtained by Western physicians and are feasible for widespread clinical application in the future. Third, the aid-decision model of traditional Chinese patent medicines for stroke treatment is constructed based on Manifold Ranking. Experimental results reveal that traditional Chinese patent medicines can be differentiated. Moreover, the proposed model can obtain high accuracy of aid decision.
关键词: traditional Chinese patent medicines stroke aid decision data mining manifold ranking
《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1419-1
• Pore structure affects biologically activated carbon performance.
关键词: Granular activated carbon Biologically activated carbon filter Bacterial community structure Pore structure
Hierarchical fractal structure of perfect single-layer graphene
T. Zhang, K. Ding
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 371-382 doi: 10.1007/s11465-013-0279-1
The atomic lattice structure of perfect single-layer graphene that can actually be regarded as a kind of hierarchical fractal structure from the perspective of fractal geometry was studied for the first time. Three novel and special discoveries on hierarchical fractal structure and sets were unveiled upon examination of the regular crystal lattices of the single-layer graphene. The interior fractal-type structure was discovered to be the fifth space-filling curve from physical realm. Two efficient methods for calculating the fractal dimension of this fresh member was also provided. The outer boundary curve had a fractal dimension equal to one, and a multi-fractal structure from a naturally existing material was found for the first time. A series of strict self-similar hexagons comprised a rotating fractal set. These hexagons slewed at a constant counterclockwise angle of 19.1° when observed from one level to the next higher level. From the perspective of fractal geometry, these pioneering discoveries added three new members to the existing regular fractal structures and sets. A fundamental example of a multi-fractal structure was also presented.
关键词: hierarchical fractal structure fractal dimension the fifth space-filling curve multi-fractal structure
标题 作者 时间 类型 操作
Simulation of viscoelastic behavior of defected rock by using numerical manifold method
Feng REN, Lifeng FAN, Guowei MA
期刊论文
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
期刊论文
Face recognition based on subset selection via metric learning on manifold
Hong SHAO,Shuang CHEN,Jie-yi ZHAO,Wen-cheng CUI,Tian-shu YU
期刊论文
Study on emissions reduction of DMCC engine with oxidation catalyst
YAO Chunde, LIU Xibo, WANG Hongfu, LIU Xiaoping, CHENG Chuanhui, WANG Yinshan
期刊论文
A novel classification method for aid decision of traditional Chinese patent medicines for stroke treatment
null
期刊论文
Influence of pore structure on biologically activated carbon performance and biofilm microbial characteristics
期刊论文