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An exploratory study for predicting component reliability with new load conditions

Zhengwei HU, Xiaoping DU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 76-84 doi: 10.1007/s11465-018-0522-x

Abstract: With a beam problem as a case study, this study explores a feasible way to re-evaluate the componentreliability with new Loads given the following information: The original reliability of the componentwith respect to the component Loads and the distributions of the new component Loads.the component failure under the new Loads.Since the information is limited, the re-evaluated component reliability is given by its maximum and

Keywords： reliability     component     failure mode     prediction     random variable    

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Improved resilience measure for component recovery priority in power grids

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 545-556 doi: 10.1007/s42524-021-0161-5

Abstract: Given the complexity of power grids, the failure of any component may cause large-scale economic losses

Keywords： resilience measure     power grid     importance measure     component recovery    

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Molecular level simulations on multi-component systems —a morphology prediction method

C. SCHMIDT, J. ULRICH

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 49-54 doi: 10.1007/s11705-013-1307-8

Abstract: prediction because the investigation on the face growth rates in a complex growth environment (as multi-component

Keywords： crystallization     morphology     molecular dynamics     solution    

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Development of a multi-component drug from turmeric using central composite design

Xiaohang ZHANG,Shengnan HAN,Yan LI,Jianlan JIANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 362-368 doi: 10.1007/s11705-014-1439-5

Abstract: A methodology to develop multi-component drugs based on traditional Chinese medicines has been developedSeveral active components from the traditional Chinese medicine turmeric were chosen for use in a multi-componentdetermine the quantitative composition-activity relationships in order to optimize the amount of each componentof the optimum combination was 92.85% in the MTT assay and superior to the activities of each single componentresponse surface methodology based on a central composite design is suitable for the design of multi-component

Keywords： multi-component drug development     central composite design     turmeric     curcuminoids    

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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

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 376-384 doi: 10.1007/s11465-018-0500-3

Abstract:

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.

Keywords： isothermal local loading forming     rib-web component     transitional region     robust optimization     dual response    

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Non-negativematrix factorization based unmixing for principal component transformed hyperspectral data

Xiu-rui GENG,Lu-yan JI,Kang SUN

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 403-412 doi: 10.1631/FITEE.1600028

Abstract: Although principal component analysis (PCA) can be used to mitigate these two problems, the transformedimpact of PCA on NMF, and find that multiplicative NMF can also be applicable to data after principal componentBased on this conclusion, we present a method to perform NMF in the principal component space, named‘principal component NMF’ (PCNMF).

Keywords： Non-negative matrix factorization (NMF)     Principal component analysis (PCA)     Endmember     Hyperspectral    

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of cutting parameters in high-speed milling based on grey relational analysis coupled with principal component

Tao FU, Jibin ZHAO, Weijun LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 445-452 doi: 10.1007/s11465-012-0338-z

Abstract: Moreover, the principal component analysis is applied to evaluate the weights so that their relativeThe results of experiments show that grey relational analysis coupled with principal component analysis

Keywords： high-speed milling     grey relational analysis     principal component analysis     parameters optimization    

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Development of component stiffness equations for thread-fixed one-side bolt connections to an enclosed

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 4,   Pages 568-586 doi: 10.1007/s11709-024-1064-4

Abstract: The proposed component stiffness equations are an effective supplement to the component-based method.

Keywords： initial stiffness     component based method     thread-fixed one-side bolt     rectangular hollow sections     analytical    

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Design and Implementation of Bank's International Trade Financing System Using Component Technology

Yu Jinshan,Chen Zhiqiang

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 81-87

Abstract: This paper presents a methodology based on semi-finished component model, and addresses a technique to

Keywords： banking     international trade financing system     component     semi-finished system    

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HOW MULTISPECIES INTERCROP ADVANTAGE RESPONDS TO WATER STRESS: A YIELD-COMPONENT ECOLOGICAL FRAMEWORK

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 416-431 doi: 10.15302/J-FASE-2021412

Abstract:

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.

 

Keywords： agroecosystem sustainability     crop overyielding     intercrop drought resistance     overyield ecological components    

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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

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 193-197 doi: 10.1007/s11708-009-0030-0

Abstract: impact toughness were measured to evaluate the qualification of modified AL-6XN steel as an in-core component

Keywords： supercritical water cooled reactor     tensile     impact toughness     corrosion     aging    

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removal of ocular artifacts from electroencephalogram signals using spatial constraint independent component

Bang-hua YANG,Liang-fei HE,Lin LIN,Qian WANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 486-496 doi: 10.1631/FITEE.1400299

Abstract: artifacts from EEG in brain-computer interfaces (BCIs), a method named spatial constraint independent componentIn the first stage, independent component analysis (ICA) is used to decompose multiple EEG channels into

Keywords： Electroencephalogram (EEG)     Electrooculogram (EOG)     Brain-computer interface (BCI)     Spatial constraint independent component    

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Enterprise-level business component identificationin business architecture integration Article

Jiong FU, Xue-shan LUO, Ai-min LUO, Jun-xian LIU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1320-1335 doi: 10.1631/FITEE.1601836

Abstract: The component-based business architecture integration of militaryinformation systems is a popular researchCurrentlyused methodologies for business component identification tend to focuson software-level businessbusiness architectures as organizations and resources.Moreover, approaches to enterprise-level business componentIn this study, we propose a novel approachto enterprise-level business component identification by consideringoverall.Case studies showed that our approach is more practical and efficientfor enterprise-level business component

Keywords： Business architecture integration     Business component     Component identification     Create     read     update    

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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

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1112-1121 doi: 10.1007/s11705-019-1865-5

Abstract: The gelating properties and thermotropic behaviors of stoichiometric mixtures of aromatic amides , and the aromatic Schiff base with tartaric acid (TA) were investigated. Among the three gelators, -TA exhibited superior gelating ability. Mixture -TA exhibits a smectic B phase and an unidentified smectic mesophase during both heating and cooling runs. The results of Fourier transform infrared spectroscopy and X-ray diffraction revealed the existence of hydrogen bonding and - interactions in -TA systems, which are likely to be the dominant driving forces for the supramolecular self-assembly. Additionally, it was established that all of the studied gel self-assemblies and mesophases possess a lamellar structure. The anion response ability of the tetrahydrofuran gel of -TA was evaluated and it was found that it was responsive to the stimuli of F , Cl , Br , I , AcO .

Keywords： supramolecular self-assembly     organogel     liquid crystal     tartaric acid     hydrogen bond    

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One-pot three-component Mannich reaction catalyzed by sucrose char sulfonic acid

Qiong XU, Zhigao YANG, Dulin YIN, Jihui WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 201-205 doi: 10.1007/s11705-009-0052-5

Abstract: Sucrose char sulfonic acid efficiently catalyzed the one-pot three-component Mannich reaction of ketones

Keywords： One–pot synthesis     b-amino ketone     char sulfonic acid     2-acetylpyrazine     catalysis    

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Title Author Date Type Operation

An exploratory study for predicting component reliability with new load conditions

Zhengwei HU, Xiaoping DU

Journal Article

Improved resilience measure for component recovery priority in power grids

Journal Article

Molecular level simulations on multi-component systems —a morphology prediction method

C. SCHMIDT, J. ULRICH

Journal Article

Development of a multi-component drug from turmeric using central composite design

Xiaohang ZHANG,Shengnan HAN,Yan LI,Jianlan JIANG

Journal Article

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

Journal Article

Non-negativematrix factorization based unmixing for principal component transformed hyperspectral data

Xiu-rui GENG,Lu-yan JI,Kang SUN

Journal Article

of cutting parameters in high-speed milling based on grey relational analysis coupled with principal component

Tao FU, Jibin ZHAO, Weijun LIU

Journal Article

Development of component stiffness equations for thread-fixed one-side bolt connections to an enclosed

Journal Article

Design and Implementation of Bank's International Trade Financing System Using Component Technology

Yu Jinshan,Chen Zhiqiang

Journal Article

HOW MULTISPECIES INTERCROP ADVANTAGE RESPONDS TO WATER STRESS: A YIELD-COMPONENT ECOLOGICAL FRAMEWORK

Journal Article

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

Journal Article

removal of ocular artifacts from electroencephalogram signals using spatial constraint independent component

Bang-hua YANG,Liang-fei HE,Lin LIN,Qian WANG

Journal Article

Enterprise-level business component identificationin business architecture integration

Jiong FU, Xue-shan LUO, Ai-min LUO, Jun-xian LIU

Journal Article

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

Journal Article

One-pot three-component Mannich reaction catalyzed by sucrose char sulfonic acid

Qiong XU, Zhigao YANG, Dulin YIN, Jihui WANG

Journal Article