检索范围:
排序: 展示方式:
《医学前沿(英文)》 2023年 第17卷 第1期 页码 68-74 doi: 10.1007/s11684-022-0955-9
关键词: complexity of glucose time series continuous glucose monitoring impaired glucose regulation insulin secretion and sensitivity refined composite multi-scale entropy
On the added value of multi-scale modeling of concrete
《结构与土木工程前沿(英文)》 2022年 第16卷 第1期 页码 1-23 doi: 10.1007/s11709-021-0790-0
关键词: experiments multi-scale analysis conventional structural analysis concrete reinforced concrete
Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis
Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN
《环境科学与工程前沿(英文)》 2011年 第5卷 第4期 页码 597-603 doi: 10.1007/s11783-011-0311-9
关键词: free-surface wetland environmental dispersion multi-scale analysis
Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL
《机械工程前沿(英文)》 2012年 第7卷 第3期 页码 288-299 doi: 10.1007/s11465-012-0333-4
Wire electrical discharge machining (WEDM) is a well known process for generating intricate and complex geometries in hard metal alloys and metal matrix composites with high precision. In present work, intricate machining of WC-5.3%Co composite on WEDM has been reported. Taguchi’s design of experiment has been utilised to investigate the process parameters for four machining characteristics namely material removal rate, surface roughness, angular error and radial overcut. In order to optimize the four machining characteristics simultaneously, grey relational analysis (GRA) coupled with entropy measurement method has been employed. Through GRA, grey relational grade has been computed as a performance index for predicting the optimal parameters setting for multi machining characteristics. Using Analysis of Variance (ANOVA) on grey relational grade, significant parameters affecting the multi-machining characteristics has been determined. Confirmatory results prove the potential of present approach.
关键词: tungsten carbide composite wire electrical discharge machining (WEDM) Taguchi method grey relational analysis (GRA) entropy measurement method
Hydromechanical model for hydraulic fractures using XFEM
Bo HE
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 240-249 doi: 10.1007/s11709-018-0490-6
G. X. WANG, X. R. WEI, V. RUDOLPH, C. T. WEI, Y. QIN
《化学科学与工程前沿(英文)》 2009年 第3卷 第1期 页码 20-25 doi: 10.1007/s11705-009-0138-0
关键词: multi-scale model gas transport coal coalbed methane CO2 sequestration
Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 121-140 doi: 10.1007/s11709-015-0290-1
关键词: polycrystalline aggregates crystal plasticity random fields spatial variability correlation structure
Multi-scale investigation of active failure for various modes of wall movement
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 961-979 doi: 10.1007/s11709-021-0738-4
关键词: discrete-element modelling granular materials retaining walls particle shape arching
陶然,贺春旺,罗俊荣,毛贻齐,马连华
《中国工程科学》 2023年 第25卷 第1期 页码 121-130 doi: 10.15302/J-SSCAE-2023.07.008
Multi-scale evaluation of river health in Liao River Basin, China
Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG
《环境科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 227-235 doi: 10.1007/s11783-010-0219-9
关键词: multi-scale characterization river health evaluation Liao River Basin set pair analysis
Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods
Zheng-Dong MA
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 442-459 doi: 10.1007/s11465-018-0488-8
Macro-architectured cellular (MAC) material is defined as a class of engineered materials having configurable cells of relatively large (i.e., visible) size that can be architecturally designed to achieve various desired material properties. Two types of novel MAC materials, negative Poisson’s ratio material and biomimetic tendon reinforced material, were introduced in this study. To estimate the effective material properties for structural analyses and to optimally design such materials, a set of suitable homogenization methods was developed that provided an effective means for the multiscale modeling of MAC materials. First, a strain-based homogenization method was developed using an approach that separated the strain field into a homogenized strain field and a strain variation field in the local cellular domain superposed on the homogenized strain field. The principle of virtual displacements for the relationship between the strain variation field and the homogenized strain field was then used to condense the strain variation field onto the homogenized strain field. The new method was then extended to a stress-based homogenization process based on the principle of virtual forces and further applied to address the discrete systems represented by the beam or frame structures of the aforementioned MAC materials. The characteristic modes and the stress recovery process used to predict the stress distribution inside the cellular domain and thus determine the material strengths and failures at the local level are also discussed.
关键词: architectured material cellular materials multi-scale modeling homogenization method effective material properties computational method
Min YUAN,Bing-xin YANG,Yi-de MA,Jiu-wen ZHANG,Fu-xiang LU,Tong-feng ZHANG
《信息与电子工程前沿(英文)》 2015年 第16卷 第12期 页码 1069-1087 doi: 10.1631/FITEE.1400423
关键词: Compressed sensing (CS) Magnetic resonance imaging (MRI) Uniform discrete curvelet transform (UDCT) Multi-scale dictionary learning (MSDL) Patch-based constraint splitting augmented Lagrangian shrinkage algorithm (PB C-SALSA)
张红岩,张登攀
《中国工程科学》 2003年 第5卷 第4期 页码 61-64
边沿作为图像视觉的最主要特征,成为图像信息获取的重要内容。小波变换具有检测局域突变的能力,而且可以结合多尺度信息进行检测,因此成为图像信息边缘检测的优良工具。根据二维小波变换的特点,分析了利用二维小波进行图像边缘检测的基本原理,并设计了利用二维小波变换进行多尺度边缘匹配的检测算法。基于研究结果,编写了计算机应用程序,进行实例分析。
Maximum entropy based finite element analysis of porous media
Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 364-379 doi: 10.1007/s11709-018-0470-x
关键词: maximum entropy FEM fully coupled multi-phase system porous media
计算成像领域新理论和新方法 Review
Xue-mei HU, Jia-min WU, Jin-li SUO, Qiong-hai DAI
《信息与电子工程前沿(英文)》 2017年 第18卷 第9期 页码 1207-1221 doi: 10.1631/FITEE.1700211
标题 作者 时间 类型 操作
Decreasing complexity of glucose time series derived from continuous glucose monitoring is correlated with deteriorating glucose regulation
期刊论文
Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis
Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN
期刊论文
Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approachof Taguchi, GRA and entropy method
Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL
期刊论文
Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale
Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS
期刊论文
Multi-scale evaluation of river health in Liao River Basin, China
Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG
期刊论文
Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods
Zheng-Dong MA
期刊论文
Multi-scale UDCT dictionary learning based highly undersampled MR image reconstruction using patch-based
Min YUAN,Bing-xin YANG,Yi-de MA,Jiu-wen ZHANG,Fu-xiang LU,Tong-feng ZHANG
期刊论文
Maximum entropy based finite element analysis of porous media
Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI
期刊论文