二维离散系统Roessor模型的观测器

该文推导出观测器存在的充分条件,并提出了降阶观测器的构造方法。     

基于状态空间模型的上市公司财务预警系统研究

构建了基于状态空闻模型的财务预謦系统，该系统能够运用现有的数据，预测出未来年度公司是否会出现财务危机。此外，它能够分解出公司财务危机进一步恶化的具体因素。并分析这些因素在某个或桌几个财务危机指标中的作用程度。     

Repositing Thinking for Future Social Systems Design: In Tribute to Bela H. Banathy and His Inspiration of the Fuschl Conversations

Contemporary systems activity can be divided into that stressing feasible and practical short-term measures, and that which is more ideal-aware, focussed on mid-longer term futures, and typically involving on-going community or social systems design. The paper highlights the key differences in approach, but then invites closer collaboration in the cause of the possible contribution that systems thinking could make for a longer term future, with Y3K (Year 3000) as a metaphor for this. This analysis, which derives from work undertaken at Asilomar 1995 and Fuschl conversations in 2000 and 2002, finds that contemporary social system design, which is driven by western culture and is action-oriented, needs adaptation before it could contribute to greater future global harmony. A truly comprehensive systems design process must accommodate a wide range of possible parameters in terms of culture, and appreciation of time and progress. An emerging paradigm as basis for thinking and engaging in social systems design work of the future is offered, which also has relevance to general systems practice.     

Modeling Organizational Systems: Banathy's Three Lenses Revisited

The inherent complexity of organizational systems defies full understanding by inquirers. This condition often causes organizational inquirers to become mired in convoluted deliberations, unable to attain the consensus among the inquiring community that is needed to advance the research forward to a meaningful conclusion. Consequently, many practitioners and researchers employ models of organizations to aid in simplifying the system's complexity and to reach shared agreement. Because no single model can fully capture the complexity of an organization, Dr. Bela H. Banathy therefore proposed using three types of interrelated models to give a multidimensional view of a human system under study. Since Banathy first introduced his three lenses approach, the concept has been employed in many educational and organizational settings. This article examines the author's experience using Banathy's three lenses and integrates their usage with some other popular modeling techniques, providing a comprehensive view of how Banathy's three lenses can be effectively employed in contemporary organizational settings.     

脉冲微分系统的周期边值问题解的存在性

本文讨论了一阶脉冲微分系统的周期边值问题，利用不动点定理得到了问题的解存在的一些充分条件。     

Robust stability test for 2-D continuous-discrete systems with interval parameters

It is revealed that the dynamic stability of 2-D recursive continuous-discrete systems with interval parameters involves the problem of robust Hurwitz-Schur stability of bivariate polynomials family. It is proved that the Hurwitz-Schur stability of the denominator polynomials of the systems is necessary and sufficient for the asymptotic stability of the 2-D hybrid systems. The 2-D hybrid transformation, i. e. 2-D Laplace-Z transformation, has been proposed to solve the stability analysis of the 2-D continuous-discrete systems, to get the 2-D hybrid transfer functions of the systems. The edge test for the Hurwitz-Schur stability of interval bivariate polynomials is introduced. The Hurwitz-Schur stability of the interval family of 2-D polynomials can be guaranteed by the stability of its finite edge polynomials of the family. An algorithm about the stability test of edge polynomials is given.     

基于X．400电子邮件系统在CIMS中的设计及实现

本文对计算机集成制造系统（ＣＩＭＳ）及并行工程（ＣＥ）中的电子邮件通信问题进行了分析，设计并实现了一个面向ＣＩＭＳ应用工厂的电子邮件系统，给出了主要的功能模型，并对电子邮件在企业中的进一步应用作了介绍。     

底盘测功编程中功率及驱动力曲线的处理方法

为了实测时能够及时得到并记录汽车底盘的功率-速度曲线、驱动力-速度曲线，在对底盘测功机控制程序编程时需考虑坐标的建立及曲线的绘制问题。本文旨在介绍Form窗口下为曲线建立动态坐标的必要性，阐明了根据测出的点数不同绘制曲线的方法，并举例说明此种方法可达到良好效果。     

校园IC卡在无线通信领域中的应用

IC卡具有体积小、保密性强和使用方便的特点，它被普遍用作身份识别和电子钱包。短信是一种新兴的通信方式，与传统方式相比，它具有价格低廉、方便快捷的优越性。本文结合这两项技术，介绍了通过AT指令驱动，向家长手机发送学生刷卡记录和接收家长的短信留言，从而家长可以实时跟踪学生的到校情况，并给学生留言。     

建筑结构TMD振动控制及其新体系减震研究

分析了结构TMD振动控制机理及在结构风振控制中的研究应用；针对建筑结构的TMD减震控制，介绍了研究现状及进展，进一步采用时程分析法和地震波输入，研究了TMD新体系采用摩擦支座和橡胶支座时的减震控制分析理论。通过研究，指出了其在结构强震反应控制中面临的几个问题。