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Modeling mechanism of a novel fractional grey mode based on matrix analysis

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Journal of Systems Engineering and Electronics 2016年第5期27卷 1040-1053页

作者： shuhua mao min zhu xinping yan mingyun gao xinping xiao college of science wuhan university of technologyWuhan 430070China national engineering research center for water transport safety wuhan university of technologyWuhan 430070China

To fully display the modeling mechanism of the novelfractional order grey model （FGM （q,1））, this paper decomposesthe data matrix of the model into the mean generation matrix, theaccumulative generation matrix and the raw data matrix, whichare consistent with the fractional order accumulative grey model（FAGM （1,1））. Following this, this paper decomposes the accumulativedata difference matrix into the accumulative generationmatrix, the q-order reductive accumulative matrix and the rawdata matrix, and then combines the least square method, findingthat the differential order affects the model parameters only byaffecting the formation of differential sequences. This paper thensummarizes matrix decomposition of some special sequences,such as the sequence generated by the strengthening and weakeningoperators, the jumping sequence, and the non-equidistancesequence. Finally, this paper expresses the influences of the rawdata transformation, the accumulation sequence transformation,and the differential matrix transformation on the model parametersas matrices, and takes the non-equidistance sequence as an exampleto show the modeling mechanism.

关键词： fractional order grey model generalized accumulativegeneration matrix decomposition non-equidistance sequence,modeling mechanism.

Stability of GM(1,1) power model on vector transformation

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Journal of Systems Engineering and Electronics 2015年第1期26卷 103-109页

作者： Jinhai Guo Xinping Xiao Jun Liu shuhua mao School of Science Wuhan University of Technology School of Information and Mathematics Yangtze University

The morbidity problem of the GM（1,1） power model in parameter identification is discussed by using multiple and rotation transformation of vectors. Firstly we consider the morbidity problem of the special matrix and prove that the condition number of the coefficient matrix is determined by the ratio of lengths and the included angle of the column vector, which could be adjusted by multiple and rotation transformation to turn the matrix to a well-conditioned one. Then partition the corresponding matrix of the GM（1,1） power model in accordance with the column vector and regulate the matrix to a well-conditioned one by multiple and rotation transformation of vectors, which completely solve the instability problem of the GM（1,1） power model. Numerical results show that vector transformation is a new method in studying the stability problem of the GM（1,1） power model.

关键词： grey power model stability morbidity vector transformation condition number of matrix

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考虑时变路网的多行程电动车辆路径问题研究

武汉理工大学学报（信息与管理工程版） 2024年第4期46卷 590-596页

作者：程泽王正国秦虎毛树华武汉理工大学交通与物流工程学院湖北武汉430063 华中科技大学管理学院湖北武汉430074 武汉理工大学数学与统计学院湖北武汉430070

为了降低城市物流的电动车配送成本,考虑道路交通网络的时变性对电动车多行程配送活动进行研究。首先,以固定成本、充电成本和时间惩罚成本之和最小化为优化目标,构建时变路网下的多行程电动车辆路径问题模型;其次,利用自适应大规模邻... 详细信息

为了降低城市物流的电动车配送成本,考虑道路交通网络的时变性对电动车多行程配送活动进行研究。首先,以固定成本、充电成本和时间惩罚成本之和最小化为优化目标,构建时变路网下的多行程电动车辆路径问题模型;其次,利用自适应大规模邻域搜索算法对实际案例进行求解;最后,分别对出发时刻、路网时变性、充电策略和电价进行分析。结果表明:路网时变性在不同时刻下对成本和配送用时的影响不同,不同出发时刻有着不同的最优路线规划;电价的小范围波动对配送活动的影响很小;充电策略的选择对配送用时和成本的影响显著。

关键词：多行程时变路网车辆路径自适应大规模邻域搜索电动车辆

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An Improved Interactively Method Based on Fuzzy Satisfying Degree for Multi-objective Decision Making

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Journal of Systems Science and Information 2007年第4期5卷 399-404页

作者： shuhua mao Xinping Xiao College of Science Wuhan University of Technology Wuhan 430063 China

In order to make a decision in the face of multiple objectives, it is necessary to know the relative importance of the different objectives. Yet, it is often very difficult to specify a set of precise weights before possible alternatives solutions are known. In this paper, we present an improved weighted method, which is based on a modified definition by the membership function of fuzzy theory; an interactive, iterative method for arriving at an acceptable solution. The decision maker gradually discerns what is achievable and adjusts his aspirations and implicitly the specification of weights and trade-offs between his objectives, in the light of what he learns. To aid the decision maker＇s cognition and to allow him to express his wishes in a natural way, we present decision maker with grey relational degree to select the best solution from the finite solutions.

关键词： multi-objective decision making interactively method fuzzy satisfying degree entropy

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用AVICap窗口类实现视频捕捉

计算机工程 2000年第5期26卷 62-63页

作者：王健毛淑华上海大学自动化系上海200072

介绍了Ｖｉｄｅｏ　ＳＤＫ　软件包中ＡＶＩＣａｐ窗口类的主要函数构成和功能，以及如何使用ＡＶＩＣａｐ窗口类实现视频捕捉．

关键词： AVICap 视频捕捉多媒体图象处理窗口类

Effect ofRemelting on the Microstructure of Atmospheric- Plasma- Sprayed NiCrBSi Coating

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Effect ofRemelting on the Microstructure of Atmospheric- Pla...

第十届全国表面工程大会暨第六届全国青年表面工程论坛

作者： TIAN Lihui LU Sheng LU Erlin mao shuhua LIU Zhaopeng School of Materials Science and Engineering Jiangsu University of Science and Technology

NiCrBSi coating was deposited by atmospheric plasma spraying. Remelting process was conducted to improve the microstructure of the as- sprayed coating. The microstructure of the coatings was analyzed by optical microscope, scanning electronic microscopy and X- ray diffraction. The results show that hard phases such as carbides and borides(Cr3C2, Cr23(B, C)6) appeared in the as-sprayed and remelted coatings. After remelting, the gaps present at the interface between the coating and the substrate disappeared and metallurgical bonding was formed due to the atom diffusion. When the as- sprayed coating was remelted, the interlamellar gaps between the flattened splats disappeared and the porosity of the coatings changed from 10. 6% to 2. 5%.

关键词： atmospheric plasma spray remelting NiCrBSi coating microstructure

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基于奇异值分解的灰色模型参数估计

武汉理工大学学报（交通科学与工程版） 2008年第3期32卷 500-502,513页

作者：毛树华武汉理工大学理学院武汉430063

提出了一种新的基于奇异值分解的GM(1,1),GM(1,N)等灰色模型参数估计方法,该方法在进行奇异值分解时,借助2个辅助矩阵将奇异值分解矩阵分解为多个矩阵之积.研究了该估计方法下对原始序列进行数乘变换后参数的变化特征.研究表明该方法充... 详细信息

提出了一种新的基于奇异值分解的GM(1,1),GM(1,N)等灰色模型参数估计方法,该方法在进行奇异值分解时,借助2个辅助矩阵将奇异值分解矩阵分解为多个矩阵之积.研究了该估计方法下对原始序列进行数乘变换后参数的变化特征.研究表明该方法充分利用了奇异值分解的优点,回避了由于最小二乘法给灰色模型带来病态性的缺点,提高了模型的稳定性,同时还减少了计算量.

关键词：灰色模型谱分解参数辨识数乘变换

基于OptiSystem仿真软件的阵列波导光栅波分复用器设计与分析

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科技广场 2015年第12期 113-115页

作者：刘莲毛淑华东华理工大学软件学院江西南昌330013

波分复用技术是光频上的频分复用技术,能够实现大容量信息的传输。阵列波导光栅(AWG)波分复用器是构建波分复用系统首选器件。本文阐述了AWG的工作原理,总结了其主要应用,最后基于Opti System仿真软件,设计了AWG版图。根据AWG版图,得出... 详细信息

波分复用技术是光频上的频分复用技术,能够实现大容量信息的传输。阵列波导光栅(AWG)波分复用器是构建波分复用系统首选器件。本文阐述了AWG的工作原理,总结了其主要应用,最后基于Opti System仿真软件,设计了AWG版图。根据AWG版图,得出仿真结果与分析,为今后设计制作出性能更好的AWG器件奠定了理论分析基础。

关键词：波分复用阵列波导光栅 OptiSystem仿真软件

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资本主义世界体系的形成

基础教育研究 2006年第12期 40-41页

作者：毛书华南宁市第三中学

资本主义世界体系是从1500年前后的新航路开辟时始，经历了几百年资本主义的开拓，于20世纪初最终形成。所谓资本主义世界体系，实质上是少数资本主义强国“对世界上大多数居民实行殖民压迫和金融扼制的世界体系”（《列宁选集》第二卷... 详细信息

资本主义世界体系是从1500年前后的新航路开辟时始，经历了几百年资本主义的开拓，于20世纪初最终形成。所谓资本主义世界体系，实质上是少数资本主义强国“对世界上大多数居民实行殖民压迫和金融扼制的世界体系”（《列宁选集》第二卷733页），是由资本主义制度在世界范围内确立、资本主义世界殖民体系和资本主义世界经济体系共同组成。

关键词：资本主义世界体系《列宁选集》资本主义制度世界经济体系世界范围新航路第二卷殖民