自组织理论——它的产生和发展

自组织理论引人注目地激起许多领域的专家的兴趣。自组织最重要的特殊情况是非平衡相变。这一理论的基础可以看作是由五部分组成的:热力学基础,时空结构(包括波动)的确定性描述,确定性混沌,触发非平衡相变的涨落以及外噪声诱导相变。本文对这些部分都作了概要的介绍并评述了这一理论的产生和它当前的进展情况。     

人机系统及其基本理论

人机系统的研究主要归结为人的行为和性能的研究。本文着重讨论和评述了人机系统研究人行为的基本理论,包括手动控制和管理控制;分折了当前人机系统研究所面临的问题及发展趋势。     

系统诊断的基本问题及发展状况

由多个处理机组成的计算机系统可以利用其子系统的相互测试实现系统级故障诊断。本文简明地介绍了系统诊断理论的基本问题和发展状况。     

非光滑两级优化问题的必要条件及其算法

利用集值分析、非光滑分析与优化理论,研究了两级优化问题的性质、结构,提出了处理这类问题的一个通用性结构化模型,并利用该模型导出了非凸非光滑条件下两级优化问题的微分包含型必要条件,最后给出了其求解的算法及算例．     

METRICS,PROBABILISTIC METRICS AND RANDOM METRICS

ＭＥＴＲＩＣＳ，ＰＲＯＢＡＢＩＬＩＳＴＩＣＭＥＴＲＩＣＳＡＮＤＲＡＮＤＯＭＭＥＴＲＩＣＳＧＵＯＴｉｅｘｉｎ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＸｉａｍｅｎＵｎｉｖｅｒｓｉｔｙ，ＦｕｊｉａｎＸｉａｍｅｎ３６１００５，Ｃｈｉｎａ）Ａｂｓｔｒ...     

THE RANKINGS OF CONTROL SYSTEMS AND APPLICATIONS

The notion of ranking was initiated into control theory by Glad a few yearsago. In this paper we mainly discuss one kind of rankings and study its invarianceproperties. This kind of rankings is closely related to the structure algorithm. The relationsbetween invariants of this kind of rankings and the invariants given by other studies, e.g.the invertibility indices of a system and so on, are examined. As applications of rankings,we deal with some well-known problems in "ranking technique". In this paper we mainlyintroduce a new method rather than solve new problems.     

FEEDBACK CONTROL OF A CLASS OF FLEXIBLE SYSTEMS WITH COUPLED BENDING AND TORSIONAL VIBRATIONS

In this paper, a class of flexible systems of beams with coupled bending andtorsional vibrations, which has important applications in the dynamics of aircraft is dis-cussed. The existence and uniqueness of the solution for this class of systems are proved,where the spectral analysis method and the unconditional base theory are used, and asufficient condition for the asymptotic stability of the closed-loop system is obtained bymeans of the (D) class operators theory.     

数据紧缩与编码技术

数据紧缩是信息理论与编码技术的新近拓展,在大型文件存储和分布式系统中均具有重要应用。本文扼要地概述了紧缩方法与编码技术的一些相关概念和衡量标准,重点讨论几种80年代中期出现的较为新颖的数据紧缩方法与编码技术,并对深入研究提出了有益的建议。     

UNIFORM PERSISTENCE IN DISCRETE SEMIDYNAMICAL SYSTEM AND ITS APPLICATION

ＵＮＩＦＯＲＭＰＥＲＳＩＳＴＥＮＣＥＩＮＤＩＳＣＲＥＴＥＳＥＭＩＤＹＮＡＭＩＣＡＬＳＹＳＴＥＭＡＮＤＩＴＳＡＰＰＬＩＣＡＴＩＯＮ￥ＷＡＮＧＷｅｎｄｉ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＳｏｕｔｈｗｅｓｔＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，...     

基于复合信息空间的决策理论与方法

经过多年的研究和实践，系统工程学术界取得了如下的共识：在进行研究与开发复杂大系统时，在但要考虑各种状态因素的影响，同时还必须考虑人、组织及环境等行为因素的影响，本文提出了复合信息空间的理论与给出了考虑两种因素的结构化方法，包括因素分析、关系分析、系统功能分析和系统综合设计，可以看出，该方法可作为各种复杂大系统分析综合的方法基础。     

人信息处理的排队论模型及人的信道特性

本文介绍了人进行信息处理的基本概念,着重讨论了信息处理数量与质量的意义,进而讨论了两者之间的关系。文中给出了人信息处理的排队论模型,由此得出信息处理中人的信道特性及人的信息处理能力与信息处理数量与质量间的定量关系。     

ON AN ELLIPTIC PROBLEM INVOLVING CRITICAL AND SUBLINEAR GROWTH

In this paper, the author considers an elliptic problem with critical and sub-linear growth. Some results about the multiplicity and uniqueness of the positive solutions are given by making use of variational method and bifurcation theory.     

CONVOLUTION THEOREM AND ASYMPTOTIC EFFICIENCY IN TWO SIDE TRUNCATED DISTRIBUTION FAMILY—THE NORMAL CASE

In the distribution family with common support and the one side truncated distribution family, Bickle, I. A. Ibragimov and R. Z. Hasminskii proved two important convolution theorems. As to the two-side truncated case, we also proved a convolution theorem, which plays an extraordinary role in the efficiency theory. In this paper, we will study another kind of two-side truncated distribution family, and prove a convolution result with normal form. On the basis of this convolution result, a new kind of efficiency concept is given; meanwhile, we will show that MLE is an efficient estimate in this distribution family.     

复杂武器系统战术技术指标论证决策支持系统(WTDDSS)的研究

本文首先分析了复杂武器系统研制的特点，在指出以往复杂武器系统战术技术指标论证工作弱点的基础上，阐明了开发ＷＴＤＤＳＳ的目的，然后就ＷＴＤＤＳＳ基于的理论、方法和实现技术进行了深入地分析，最后简要介绍了ＷＴＤＤＳＳ的一个应用实例．     

ADAPTIVE SYSTEMS THEORY： SOME BASIC CONCEPTS, METHODS AND RESULTS

The adaptive systems theory to be presented in this paper consists of two closely related parts: adaptive estimation (or filtering, prediction) and adaptive control of dynamical systems. Both adaptive estimation and control are nonlinear mappings of the on-line observed signals of dynamical systems, where the main features are the uncertain-ties in both the system‘s structure and external disturbances, and the non-stationarity and dependency of the system signals. Thus, a key difficulty in establishing a mathematical theory of adaptive systems lies in how to deal with complicated nonlinear stochastic dynamical systems which describe the adaptation processes. In this paper, we will illustrate some of the basic concepts, methods and results through some simple examples. The following fundamental questions will be discussed: How much information is needed for estimation? How to deal with uncertainty by adaptation? How to analyze an adaptive system? What are the convergence or tracking performances of adaptation? How to find the proper rate of adaptation in some sense? We will also explore the following more fundamental questions: How much uncertainty can be dealt with by adaptation ? What are the limitations of adaptation ? How does the performance of adaptation depend on the prior information ? We will partially answer these questions by finding some “critical values“ and establishing some “Impossibility Theorems“ for the capability of adaptation, for several basic classes of nonlinear dynamical control systems with either parametric or nonparametric uncertainties.     

用联系数描述和处理网络计划中的不确定性

通过把集对分析（ＳＰＡ）中的联系数引入到网络计划技术之中，为工程中因各种情况变化引起的工期不确定性提供了一种新的表达和处理方法．研究表明，这种基于联系数的网络计划与调控方法，比传统的网络计划方法提供了更多有价值的信息，如关键路线、次关键路线和再次关键路线及其转化关系等，具有更灵活的表达和处理能力且符合工程实际．新方法思路清晰、操作方便，是一种值得推广的新型网络计划方法     

MODELING AND ANALYSIS OF ENERGY SYSTEM BASED ON COMPLEX ADAPTIVE SYSTEM

Complex adaptive system (CAS) is a kind of complex system in natural and artificial systems. In this paper, the theory of complex adaptive system is introduced at first. Considering the characteristic of energy system, it can be regarded as a complex adaptive system. After the evolutionary law is analysed, the energy complex system model is established based on CAS and application tool SWARM, which is a simulation software platform. The model differs from the models as well as methods developed before. As an application, China's energy system is simulated with the model established above. China's future total energy demand in the future, energy structure and related in fluence on environment are presented.     

交通运输业建设项目综合经济评价方法及其地区经济效益模型研究

交通运输业建设项目的地区经济效益是该地区经济效益的重要组成部分，目前尚以定性分析为主。本文提出一套运用系统工程理论和投入产出方法，研究交通运输建设项目地区经济效益的方法和模型。并以京津地区为实例，对京津塘高速公路和京津间三线铁路建设的地区经济效益进行了实际计算和深入探讨，得到了有益的结果。     

运输问题最小运费合理分摊的对策模型及解法

本文借助于合作多人对策的思想建立起了运输问题中最小运费合理分摊的数学模型，同时给出了建立理想分摊向量和特征函数的一种方法，并提供了一种 简便、有效的模型解法，比较有效地解决了运输问题中最小运费人合理分摊问题，为最优运输方案的实际实施提供了前提和保障。     

神经网络专家系统——基本理论与实现

AI的引入使计算机科学取得了惊人的成就,而作为AI最活跃的分支——专家系统的迅速发展和成功应用使AI从学科研究走向实际应用取得了重大突破。然而,专家系统的发展遇到知识获取“瓶颈”、“窄台阶”等因难以及现代数字计算机固有的缺陷,使其支持能力受到极大的限制,亟待开拓新的途径和方法。最新发展的以非线性大规模连续时间模拟并行分布处理为主流的神经网络理论为AI和专家系统的发展开辟了崭新的途径。基于神经网络非线性信息处理基本原理,本文系统地研究并论述了神经网络专家系统理论与基本框架;提出了知识的神经网络表示、知识获取的自适应学习训练、知识的自适应并行联想推理、模糊推理等方法。神经网络专家系统理论的发展和应用必将为AI、计算机科学和信息科学带来历史性的突破。