模糊子集及规则的合并算法研究

在应用模糊系统时，常常会遇到的一个问题就是系统中可能存在冗余的模糊子集和模糊规则。一方面增加了系统复杂性，浪费了计算能力，另一方面也给使用自然语言来描述系统造成了困难。本文针对TS模糊系统提出一种模糊子集和模糊规则的合并算法。使用该算法能有效地减少模糊子集和模糊规则的数目，进而减小了系统的复杂性，提高系统的可描述性。数字仿真结果证明了本文所述算法的有效性．     

基于分段模糊Lyapunov方法的离散模糊控制系统设计

针对应用公共Lyapunov函数方法和模糊Lyapunov函数方法判定离散T-S模糊控制系统稳定性存在的保守性和难度，在定义离散型分段模糊Lyapunov函数的基础上，应用并行分布补偿方法（PDC）设计出使模糊系统全局渐近稳定的拉制器，并提出和证明了一个新的判定用环离散T-S模糊系统稳定的充分条件，该条件降低了上述方法的保守性和难度。通过一个仿真例子验证了方法的有效性。     

模糊随机系统

本文研究和分析了确定性系统、随机系统和模糊系统的共同性质以及它们之间的联系, 抽出这些系统的共同特性, 给出了模糊随机系统的一般性定义, 并且导出各种系统。证明了模糊随机系统以确定性系统、随机系统和模糊系统作为其特例。最后展望了模糊随机系统理论的应用前景。     

从数据中挖掘模糊规则及其系统实现

针对一类多输入单输出模糊逻辑系统，提出一种简单而有效的方法从数据库中挖掘模糊规则．该方法产生的模糊规则库具有良好的完备性和鲁棒性，从仿真实验可以看出利用数据挖掘方法建立的模糊系统具有更好的逼近能力．为了使该方法在应用上具有良好的通用性，设计和实现了基于组件技术的数据挖掘系统．     

桥式系统的模糊可靠性

本文根据模糊可靠性的基本概念和理论，建立了一套计算桥式系统模糊可靠性的公式。并对一个算例进行了计算。     

冷贮备系统的模糊可靠性

在Ｆｕｚｚｙ可靠性的基础上，应用模糊数学的原理和方法，建立了一套冷贮备系统的模糊可靠性公式     

舰载特种起重机仿真系统

基于插值样条函数的轨迹规划法、机器人拉格朗日动力学方程和模糊控制器，以及基于OpenGL技术的三维动态显示，建立了舰载特种起重机的仿真系统模型。对系统的功能、结构及系统的实现进行了较详细的阐述。     

离散模糊系统的新型模糊控制器与观测器设计

基于T－S模糊动态模型，研究了一类在状态空间形式下，离散模糊系统的稳定监督控制器的设计与分析，将全局模糊型按隶属函数重新划分成若干子空间，采用分段Lyapunov函数法，克服了以往设计法中需要求解一公共正定矩阵P的不足，也无需求解繁琐的Riccati方程，并针对系统状态不可测的实际情况，设计了模糊观测器，从而用成熟的线性系统理论完成对复杂非线性系统的控制，模糊控制器与观测器设计简单，适合工程应用。     

一种新的基于模糊趋近律的滑模控制方法

针对一类具有不确定性的非线性系统，提出了一种模糊趋近律滑模型控制策略，将模糊逻辑控制与趋近律相结合，推导出模糊趋近律，该设计方法简单，控制算法容易实现，仿真结果表明，本文提出的方法不仅保留了滑模控制系统所具有的较强的鲁棒性优点，又使控制系统滑动模态的品质得到保证和改善，同时消除了系统的高频颤动。     

复杂物流系统仿真及其研究现状

复杂物流系统是一个由若干个制造商、若干个批发商和若干个零售商组成的网状物流链。本文给出了复杂物流系统的结构，分析了复杂物流系统仿真的研究现状，并提出了CLSim的总体结构，同时指出了复杂物流系统仿真研究的三个问题：（1）复杂物流系统中的不确定性建模，（2）复杂物流系统仿真模型设计与实现，包括仿真策略选择、仿真模型构造及仿真程序设计与实现三个方面，（3）复杂物流系统控制。     

THE 8~(th) INTERNATIONAL CONGRESS ON INDUSTRIAL AND APPLIED MATHEMATICS

正August 10-14,2015Beijing,China The International Congress on Industrial and Applied Mathematics(IClAM)is the premier international congress in the field ofapplied mathematics held every four years under the auspices ofthe International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists and entrepreneurs fiom around the world will gather in Beijing,China for the 8th IClAM to be held at     

The 12th International Conference on Service Systems and Service Management ICSSSM'15

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Enterprise resource planning implementation decision & optimization models

To study the uncertain optimization problems on implementation schedule, time-cost trade-off and quality in enterprise resource planning (ERP) implementation, combined with program evaluation and review technique (PERT), some optimization models are proposed, which include the implementation schedule model, the timecost trade-off model, the quality model, and the implementation time-cost-quality synthetic optimization model. A PERT-embedded genetic algorithm (GA) based on stochastic simulation technique is introduced to the optimization models solution. Finally, an example is presented to show that the models and algorithm are reasonable and effective, which can offer a reliable quantitative decision method for ERP implementation.     

A calculus for services innovation

Innovation in the services area - especially in the electronic services （e-services） domain - can be systematically developed by first considering the strategic drivers and foci, then the tactical principles and enablers, and finally the operational decision attributes, all of which constitute a process or calculus of services innovation. More specifically, there are four customer drivers （i.e., collaboration, customization, integration and adaptation）, three business foci （i.e., creation-focused, solution-focused and competition-focused）, six business principles （i.e., reconstruct market boundaries, focus on the big picture not numbers, reach beyond existing demand, get strategic sequence right, overcome organizational hurdles and build execution into strategy）, eight technical enablers （i.e., software algorithms, automation, telecommunication, collaboration, standardization, customization, organization, and globalization）, and six attributes of decision informatics （i.e., decision-driven, information-based, real-time, continuously-adaptive, customer-centric and computationally-intensive）. It should be noted that the four customer drivers are all directed at empowering the individual - that is, at recognizing that the individual can, respectively, contribute in a collaborative situation, receive customized or personalized attention, access an integrated system or process, and obtain adaptive real-time or just-in-time input. The developed process or calculus serves to identify the potential white spaces or blue oceans for innovation. In addition to expanding on current innovations in services and related experiences, white spaces are identified for possible future innovations; they include those that can mitigate the unforeseen consequences or abuses of earlier innovations, safeguard our rights to privacy, protect us from the always-on, interconnected world, provide us with an authoritative search engine, and generate a GDP metric that can adequately measure the growing knowledge economy,     

高速低复杂度可重构L&R算法研究与实现

为满足卫星有效载荷数据传输系统高速、高可靠性的需求, 提出一种基于L&R(Luise and Reggiannini)算法的高速低复杂度可重构频偏恢复实现方案。为便于算法逻辑架构实现, 对算法的函数功能进行分解及模块化设计; 为减少乘法器资源消耗, 采用复用分解的自相关函数模块; 为提高L&R算法的精度, 对导频段自相关函数进行多段叠加。结果表明, 高速低复杂度可重构频偏恢复实现方案解调性能损失接近为0 dB, 且优化后的算法结构相比于直接结构可减少92.59%的乘法器消耗, 拆分的自相关函数功能模块具有可复用性和重构性。该算法的可工作时钟速率高达370.37 MHz, 在高速接收机中具有极高的应用价值。     

论生物系统中的功能不守恒性

根据能量守恒定律，能量一次转换所做的总功应等于输入的总能量。但在生物系统中，能量的转换是多次的，其总功之和大于系统输入的总能量，此现象称之为功能不守恒性。能量转换效率越高，功能差别越大。能量通过细胞水平的多次转换，总功可提高至2倍左右。能量通过生态系统水平多次转换，总功可提高至1．4倍左右。通过系统内各子系统能流之和称为序能，反映了系统有序性大小，它取决于系统输入总能量和能量转换效率。根据序能原理，用GDP^2／9(GDP为国内生产总值，Q为能量总输入)反映人类社会功能和效率，要比单纯用GDP更客观。绿色GDP应同时考虑使GDP^2／Q增长最大和使自然生态系统的序能最大。人的经济行为和动物的行为对策也符合序能原理。     

Dealing with Human Relations in Chinese Systems Practice

This paper is about the Wuli, Shili, Renli (WSR) systems methodology. An important concept within this, Renli, has been developed from Confucian philosophy to clarify to Chinese researchers the necessity of dealing with human relations in systems practice. At present, the only formal means of operationalizing Renli that people are exploring in China is to import from the West methods for organizing debate. However, the concept of Renli suggests that more is needed than methods alone. In particular, facilitation skills are required. It is argued that the development of facilitation skills can be enhanced if researchers can gain both theoretical and practical knowledge of group dynamics, and engage in activities of self-reflection to look at, and alter, their own roles in these dynamics and the wider sociopolitical system. There are therefore three aspects to Renli: the use of systems methods for organizing debate, the acquisition of facilitation skills, and self-reflection geared toward the development of facilitation skills and enhanced critical awareness of the politics of intervention.     

云环境中邮件服务器面向传输的优化设计

随着云计算的发展,新的应用不断涌现,但电子邮件服务依然占有着重要的地位.邮件服务器是一种I/O密集的应用.在云计算时代,越来越多的用户邮件保存在服务器端,邮件在从客户端传输到服务器端之前,邮件或者邮件的部分内容在服务器端可能已经存在.基于这种现象,提出了一种方案,通过引入计算的代价来降低通信量,从而提高邮件服务器的处理能力.对电子邮件的格式和SMTP协议进行了扩充,引入了附件和正文分离传输的模式.在邮件传输时,客户端先计算附件的散列值,并作为正文的一部分传输到服务器端,服务器端再根据散列值来判断附件是否需要传输.     

金工工艺的优化设计

运用价值工程与运筹工程理论, 在金工工艺单项设计指标优化的基础上, 对其设计指标也进行了全面优化。