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An exploratory study for predicting component reliability with new load conditions
Zhengwei HU, Xiaoping DU
《机械工程前沿(英文)》 2019年 第14卷 第1期 页码 76-84 doi: 10.1007/s11465-018-0522-x
关键词: reliability component failure mode prediction random variable
Improved resilience measure for component recovery priority in power grids
《工程管理前沿(英文)》 2021年 第8卷 第4期 页码 545-556 doi: 10.1007/s42524-021-0161-5
关键词: resilience measure power grid importance measure component recovery
Molecular level simulations on multi-component systems —a morphology prediction method
C. SCHMIDT, J. ULRICH
《化学科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 49-54 doi: 10.1007/s11705-013-1307-8
Ke WEI, Xiaoguang FAN, Mei ZHAN, Miao MENG
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 376-384 doi: 10.1007/s11465-018-0500-3
Billet optimization can greatly improve the forming quality of the transitional region in the isothermal local loading forming (ILLF) of large-scale Ti-alloy rib-web components. However, the final quality of the transitional region may be deteriorated by uncontrollable factors, such as the manufacturing tolerance of the preforming billet, fluctuation of the stroke length, and friction factor. Thus, a dual-response surface method (RSM)-based robust optimization of the billet was proposed to address the uncontrollable factors in transitional region of the ILLF. Given that the die underfilling and folding defect are two key factors that influence the forming quality of the transitional region, minimizing the mean and standard deviation of the die underfilling rate and avoiding folding defect were defined as the objective function and constraint condition in robust optimization. Then, the cross array design was constructed, a dual-RSM model was established for the mean and standard deviation of the die underfilling rate by considering the size parameters of the billet and uncontrollable factors. Subsequently, an optimum solution was derived to achieve the robust optimization of the billet. A case study on robust optimization was conducted. Good results were attained for improving the die filling and avoiding folding defect, suggesting that the robust optimization of the billet in the transitional region of the ILLF was efficient and reliable.
关键词: isothermal local loading forming rib-web component transitional region robust optimization dual response surface method
Development of a multi-component drug from turmeric using central composite design
Xiaohang ZHANG,Shengnan HAN,Yan LI,Jianlan JIANG
《化学科学与工程前沿(英文)》 2014年 第8卷 第3期 页码 362-368 doi: 10.1007/s11705-014-1439-5
关键词: multi-component drug development central composite design turmeric curcuminoids
Xiu-rui GENG,Lu-yan JI,Kang SUN
《信息与电子工程前沿(英文)》 2016年 第17卷 第5期 页码 403-412 doi: 10.1631/FITEE.1600028
关键词: Non-negative matrix factorization (NMF) Principal component analysis (PCA) Endmember Hyperspectral
Tao FU, Jibin ZHAO, Weijun LIU
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 445-452 doi: 10.1007/s11465-012-0338-z
This paper investigates optimization problem of the cutting parameters in high-speed milling on NAK80 mold steel. An experiment based on the technology of Taguchi is performed. The objective is to establish a correlation among spindle speed, feed per tooth and depth of cut to the three directions of cutting force in the milling process. In this study, the optimum cutting parameters are obtained by the grey relational analysis. Moreover, the principal component analysis is applied to evaluate the weights so that their relative significance can be described properly and objectively. The results of experiments show that grey relational analysis coupled with principal component analysis can effectively acquire the optimal combination of cutting parameters and the proposed approach can be a useful tool to reduce the cutting force.
关键词: high-speed milling grey relational analysis principal component analysis parameters optimization
余金山,陈志强
《中国工程科学》 2004年 第6卷 第9期 页码 81-87
国际贸易结算是银行业中一种必不可少的业务,占据着重要的地位,而且随着电子商务的发展,其重要性也越来越突出。但是,这一业务的计算机化相当困难。主要原因是:操作流程复杂;组合变化太多,对灵活性有很高要求;涉及面相当广,几乎涉及银行的每一个业务品种,是一个压缩版的银行系统。因此,开发这样的系统必须采用先进的而且较为合适的方法和技术。文章提出了以构建半成品构件系统为总体思想的开发方法;在设计和实现上,提出了以数据总线为统一接口,以菜单/功能图标为总控主体框架,以基本业务操作为基本组件,并能把基本组件包装裁剪成可在主体框架控制下运行的功能构件,这样构建的系统可按实际需要进行组装、剪裁、参数设定、重新包装或经少量改写而形成一个实际可运行的系统。并提供了与银行总系统集成的灵活接口,具备了向网上银行和分布系统发展的良好基础。
Bang-hua YANG,Liang-fei HE,Lin LIN,Qian WANG
《信息与电子工程前沿(英文)》 2015年 第16卷 第6期 页码 486-496 doi: 10.1631/FITEE.1400299
关键词: Ocular artifacts Electroencephalogram (EEG) Electrooculogram (EOG) Brain-computer interface (BCI) Spatial constraint independent component analysis based recursive least squares (SCICA-RLS)
One-pot three-component Mannich reaction catalyzed by sucrose char sulfonic acid
Qiong XU, Zhigao YANG, Dulin YIN, Jihui WANG
《化学科学与工程前沿(英文)》 2009年 第3卷 第2期 页码 201-205 doi: 10.1007/s11705-009-0052-5
关键词:
One–pot synthesis
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 416-431 doi: 10.15302/J-FASE-2021412
Absolute yield and land use efficiency can be higher in multicrops. Though this phenomenon is common, it is not always the case. Also, these two benefits are frequently confused and do not necessarily occur together. Cropping choices become more complex when considering that multicrops are subject to strong spatial and temporal variation in average soil moisture, which will worsen with climate change. Intercropping in agroecosystems is expected to buffer this impact by favoring resistance to reduced humidity, but there are few empirical/experimental studies to validate this claim. It is not clear if relatively higher multicrop yield and land use efficiency will persist in the face of reduced soil moisture, and how the relation between these benefits might change. Here, we present a relatively simple framework for analyzing this situation. We propose a relative multicrop resistance (RMR) index that captures all possible scenarios of absolute and relative multicrop overyield under water stress. We dissect the ecological components of RMR to understand the relation between higher multicrop yield and land use efficiency and the ecological causes of different overyield scenarios. We demonstrate the use of this framework with data from a 128 microplot greenhouse experiment with small annual crops, arranged as seven-species multicrops and their corresponding monocrops, all under two contrasting watering regimes. We applied simple but robust statistical procedures to resulting data (based on bootstrap methods) to compare RMR, and its components, between different plants/plant parts. We also provide simple graphical tools to analyze the data.
关键词: agroecosystem sustainability crop overyielding intercrop drought resistance overyield ecological components
Xinggang LI, Qingzhi YAN, Rong MA, Haoqiang WANG, Changchun GE
《能源前沿(英文)》 2009年 第3卷 第2期 页码 193-197 doi: 10.1007/s11708-009-0030-0
关键词: supercritical water cooled reactor tensile impact toughness corrosion aging
业务架构集成中的企业级业务组件识别方法 Article
Jiong FU, Xue-shan LUO, Ai-min LUO, Jun-xian LIU
《信息与电子工程前沿(英文)》 2017年 第18卷 第9期 页码 1320-1335 doi: 10.1631/FITEE.1601836
Xin Wang, Wei Cui, Bin Li, Xiaojie Zhang, Yongxin Zhang, Yaodong Huang
《化学科学与工程前沿(英文)》 2020年 第14卷 第6期 页码 1112-1121 doi: 10.1007/s11705-019-1865-5
关键词: supramolecular self-assembly organogel liquid crystal tartaric acid hydrogen bond
Leijing Liu, Hao Zhang, Bo Xiao, Yang Liu, Bin Xu, Chen Wang, Shanpeng Wen, Erjun Zhou, Gang Chen, Chan Im, Wenjing Tian
《化学科学与工程前沿(英文)》 2021年 第15卷 第1期 页码 127-137 doi: 10.1007/s11705-020-1936-7
关键词: third component organic solar cells charge carrier generation charge carrier recombination bimolecular recombination
标题 作者 时间 类型 操作
An exploratory study for predicting component reliability with new load conditions
Zhengwei HU, Xiaoping DU
期刊论文
Molecular level simulations on multi-component systems —a morphology prediction method
C. SCHMIDT, J. ULRICH
期刊论文
Robust optimization of the billet for isothermal local loading transitional region of a Ti-alloy rib-web component
Ke WEI, Xiaoguang FAN, Mei ZHAN, Miao MENG
期刊论文
Development of a multi-component drug from turmeric using central composite design
Xiaohang ZHANG,Shengnan HAN,Yan LI,Jianlan JIANG
期刊论文
Non-negativematrix factorization based unmixing for principal component transformed hyperspectral data
Xiu-rui GENG,Lu-yan JI,Kang SUN
期刊论文
of cutting parameters in high-speed milling based on grey relational analysis coupled with principal component
Tao FU, Jibin ZHAO, Weijun LIU
期刊论文
removal of ocular artifacts from electroencephalogram signals using spatial constraint independent component
Bang-hua YANG,Liang-fei HE,Lin LIN,Qian WANG
期刊论文
One-pot three-component Mannich reaction catalyzed by sucrose char sulfonic acid
Qiong XU, Zhigao YANG, Dulin YIN, Jihui WANG
期刊论文
HOW MULTISPECIES INTERCROP ADVANTAGE RESPONDS TO WATER STRESS: A YIELD-COMPONENT ECOLOGICAL FRAMEWORK
期刊论文
Feasibility analysis of modified AL-6XN steel for structure component application in supercritical water-cooled
Xinggang LI, Qingzhi YAN, Rong MA, Haoqiang WANG, Changchun GE
期刊论文
Supramolecular self-assembly of two-component systems comprising aromatic amides/Schiff base and tartaric
Xin Wang, Wei Cui, Bin Li, Xiaojie Zhang, Yongxin Zhang, Yaodong Huang
期刊论文