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MRO Configuration Management for Complex Products

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Journal of Systems Science and Systems Engineering 2022年第3期31卷 359-380页

作者： Chunliu Zhou lian Qi Xiaobing Liu Hongguang bo Key Laboratory of Multidisciplinary Management and Control of Complex Systems of Anhui Higher Education Institutes Anhui University of TechnologyMaanshan 243002China School of Management Science and Engineering Anhui University of TechnologyMaanshan 243032China Rutgers Business School RutgersThe State University of New JerseyPiscatawayNJ 08854United State School of Economics and Management Dalian University of TechnologyDalian 116023China

Configuration management(CM)is an effective method for data modeling and change management in product development,but the study of how it can be adapted for complex product maintenance,repair and overhaul(MRO)has thus far been *** propositions are put forward on the basis of a literature review and verified by a case of a high-speed train MRO *** findings show that CM can be used in MRO data management with adjustments in its ***,MRO-CM planning considers both multistage service and single-stage service to keep data consistent and ***,MRO data integration with the design/production phase should be considered during configuration ***,baselines and change rules are developed for change ***,status accounting and auditing can be repeatedly used in MRO data management.A systematic MRO-CM framework is generated to assist MRO practitioners in understanding the relationships among different MRO-CM *** paper contributes to expanding the theory of CM in MRO for complex products and provides an effective method for managing MRO data from systematic engineering insights.

关键词： Configuration management MRO Service data management case study

Estimates of three classical summations on the spaces F_p^(α,q)(R^n)(0 < p ≤ 1)

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Applied Mathematics(A Journal of Chinese Universities) 2014年第3期29卷 329-338页

作者： GAO Gui-lian ZHONG yong School of Science Hangzhou Dianzi University Postdoctoral Programme of Economics and Management School of Wuhan University Postdoctoral Programme of China Great Wall Asset Management Corporation

We obtain the boundedness on Fp^α,q（R^n）for the Poisson summation and Gauss summation. Their maximal operators are proved to be bounded from Fp^α,q（R^n）to L∞（R^n）For the maximal operator of the bochner-Riesz ... 详细信息

关键词： Poisson summation Gauss summation bochner-Riesz summation Triebel-Lizorkin space.

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On λ-harmonic graphs

Applied Mathematics(A Journal of Chinese Universities) 2009年第2期24卷 245-252页

作者： LIU Mu-huo LIU bo-lian Dept. of Math. South China Agricultural Univ. Guangzhou 510642 China College of Math. Sci. South China Normal Univ. Guangzhou 510631 China

A λ harmonic graph G, a λ-Hgraph G for short, means that there exists a constant A such that the equality λd（ui） = ∑（vi,vj）∈E（G） d（vj） holds for all i = 1, 2,…, ｜V（G）｜, where d（vi） denotes the degree of vertex vi. In this paper, some harmonic properties of the complement and line graph are given, and some algebraic properties for the λ-Hgraphs are obtained.

关键词： harmonic graph regular graph line graph degree series

Degree series of the 3-harmonic graphs

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Applied Mathematics(A Journal of Chinese Universities) 2008年第4期23卷 481-489页

作者： LIU Mu-huo LIU bo-lian Department of Mathematics South China Agricultural University Guangzhou 510642 China School of Mathematical Sciences South China Normal University Guangzhou 510631 China

A λ harmonic graph G, a λ-Hgraph G for short, means that there exists a constant λ such that the equality λd（vi） = Σ（vi,vj）∈E（G） d（vj） holds for all i = 1, 2,..., ｜V（G）｜, where d（vi） denotes the degree of vertex vi. Let ni denote the number of vertices with degree i. This paper deals with the 3-Hgraphs and determines their degree series. Moreover, the 3-Hgraphs with bounded ni （1 ≤ i ≤ 7） are studied and some interesting results are obtained.

关键词： harmonic graph non-regular graph degree series

Some Results on the Majorization Theorem of Connected Graphs

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Acta Mathematica Sinica,English Series 2012年第2期28卷 371-378页

作者： Mu Huo LIU bo lian LIU Department of Applied Mathematics South China Agricultural UniversityGuangzhou 510642P.R.Ch.ina School of Mathematical Science South China Normal UniversityGuangzhou 510631P.R.China

Let π = （d1, d2,..., dn） and π＇ = （d＇1, d＇2,..., d＇n） be two non-increasing degree sequences.

关键词： Spectral radius Perron vector majorization

bounds of the Estrada index of graphs

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Applied Mathematics(A Journal of Chinese Universities) 2010年第3期25卷 325-330页

作者： LIU Jian-ping LIU bo-lian College of Mathematics and Computer Science Fuzhou University Fujian 350108 China School of Mathematical Sciences South China Normal University Cuangzhou 510631 China

Let G be a graph of order n and let λ1, λ2,...,λn be its eigenvalues. The Estrada index[2] of G is defined as EE = EE（G） =∑i=1^n e^λ*** this paper, new bounds for EE are established, as well as some relations b... 详细信息

关键词： Graph spectrum Estrada index bound energy (of graph).

Generalization for Laplacian energy

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Applied Mathematics(A Journal of Chinese Universities) 2009年第4期24卷 443-450页

作者： LIU Jian-ping LIU bo-lian School of Mathematics Sciences South China Normal University Guangzhou 510631 China College of Mathematics and Computer Science Fuzhou University Fuzhou 350108 China

Let G be a simple graph with n vertices and m edges. Let λ1, λ2,…, λn, be the adjacency spectrum of G, and let μ1, μ2,…, μn be the Laplacian spectrum of G. The energy of G is E（G） = n∑i=1｜λi｜, while the Laplacian energy of G is defined as LE（G） = n∑i=1｜μi-2m/n｜ Let γ1, γ2, ~ …, γn be the eigenvalues of Hermite matrix A. The energy of Hermite matrix as HE（A） = n∑i=1｜γi-tr（A）/n｜ is defined and investigated in this paper. It is a natural generalization of E（G） and LE（G）. Thus all properties about energy in unity can be handled by HE（A）.

关键词： energy (of matrix) Hermite matrix eigenvalue

Realizing high initial Coulombic efficiency in manganese-based layered oxide cathodes for sodium-ion batteries via P2/O'3 biphasic structure optimization

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Rare Metals 2024年第5期43卷 2093-2102页

作者： bo Peng Zi-Hao Zhou Ping Xuan Jie Xu lian-bo Ma School of Materials Science and Engineering Anhui University ofTechnologyMa'anshan 243002China Anhui Product Quality Supervision&Inspection Research Institute Hefei 230051China

Mn-based layered oxides are among the most promising cathode materials for sodium-ion batteries owing to the advantages of abundance,environmenta friendliness,low cost and high specific capacity.P2 and O'3 are two representative structures of Mn-based layered ***,the P2 structure containing insufficien Na generally exhibits low initial charge capacity,while O'3structure with sufficient Na delivers high initial charge capacity but poor cycle *** study prepared a multitude of Na_(x)MnO_(2)(x=0.7,0.8,0.9)cathode materials with varying P2/O'3 ratios and further investigated their electrochemical *** optimized Na_(0.8)MnO_(2) comprising 69.9 wt%O'3 and 30.1 wt%P2 phase,exhibited relatively balanced specific capacity,Coulombic efficiency and cycle ***,it achieved a high specific capacity of 128.9 mAh·g^(-1) with an initia Coulombic efficiency of 98.2%in half-cell configuration The Na_(0.8)MnO_(2)//hard carbon full cell also achieved a high specific capacity of 126.7 mAh·g^(-1) with an initia Coulombic efficiency of 98.9%.Moreover,the capacity fading mechanism was revealed by combining in-situ and ex-situ X-ray *** findings of this study provide theoretical guidance for further modification design of Mnbased layered cathodes.

关键词： Sodium-ion batteries Cathode materials Mn-based layered oxides P2/0'3 composites

Using the Phosphomannose Isomerase (PMI) Gene from Saccharomyces cerevisiae for Selection in Rice Transformation

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Journal of Integrative Agriculture 2012年第9期11卷 1391-1398页

作者： WANG Tao LIU liang-yu TANG yong-yan ZHANG Xiao-bo ZHANG Mei-dong ZHENG yong-lian ZHANG Fang-dong National Key Laboratory of Crop Genetic Improvement Ministry of Science and Technology/Huazhong Agricultural University Wuhan 430070P. R. China

The phosphomannose isomerase （PMI） gene from Saccharomyces cerevisiae acted as selectable marker and mannose acted as selective agent for the production of transgenic plants of rice （Oryza sativa L.） via Agrobacterium-mediated transformation. The concentration of mannose during the selection was stepwise increased, 5 g L-1 mannose combined with 15 g L-1 sucrose and 500 mg L-1 cefotaxime was used in the initial selection stage, then the concentration of mannose was increased to 11 g L-1, the highest transformation rate was 20.0%. The integration of PMI gene was confirmed by PCR, and the result of RT-PCR assay proved that the intron of PMI gene can be excised correctly during RNA splicing. 13- Glucuronidase （GUS） activity analysis confirmed the expression of GUS gene. All those means the PMI gene from yeast can be used as a selectable marker in rice transformation.

关键词： phosphomannose isomerase selectable marker Saccharomyces cerevisiae transformation rice