最优控制

Different from the case of strict minimal siphons in a net system, the number of elementary ones is bounded by the smaller of place count and transition count. Based on the ideas mentioned above, this thesis proves that the set of elementary siphons is not unique, while different ones may lead to different control results.

本文在此研究的基础上，论证了网系统中的基本信标的不唯一性，控制不同的基本信标可以得到不同的控制效果，进而提出了最优基本信标的概念并给出了相应的计算方法，应用这一计算方法可以在多项式时间内求得一组最优基本信标，也就是说，控制该组基本信标相对于其他的基本信标可以使得系统Petri网模型具有最多的可达状态，这在实际中，意味着系统具有更大的灵活性。

Enterprises have three hierarchal behaviors in a positive environmental behavior, namely: the circular economy and the distribution of interests, and alternative choice,i.e.

由于企业在环境治理中存在达到企业最优污染控制水平、社会最优污染控制水平及污染完全控制三个目标层次的选择，企业在不同的污染控制目标层次上，其行为是有差异的。

The major contributions of this thesis include:(1) proposing a new kind of optimal feedback control, followed by its application to chaos targeting and stabilization of high period unstable periodic orbits ;(2) stabilization of unstable fixed point in chaotic systems using some kind of nonlinear feedback control, and giving sufficient condition for the existence of the controller as well as the synthesis procedure;(3) analyzing the robustness of optimal control in chaotic Lur'e systems under the help of H〓 control theory;(4) finally and most importantly, introducing a novel method of information storage based on discrete time chaotic systems as the application of chaos control, and systematically studying different schemata for implementation, providing a theoretic basis for the design of such new kind of information storage devices with large capacity.

本文的主要工作包括，提出一种新的最优反馈控制，并将之应用于混沌引导控制及混沌系统高周期不稳定周期轨道的镇定控制；针对不动点镇定控制的一类非线性反馈控制器，文中给出该类反馈控制存在的充分条件及设计步骤；文中还利用非线性H〓鲁棒控制理论对Lur'e混沌系统中的最优线性反馈控制进行鲁棒性分析；最后，也是最重要的，作为混沌控制的应用，文中提出一种基于离散时间混沌系统的信息存储方法，系统地分析、研究了实现这种信息存储的不同方案，为以后进行这种新型大容量存储器设计提供了一定的理论依据。

This article discusses optimal preview tracking control of plane object trajectory and optimal preview tracking control of space three dimensions object trajectory by qualitative and quantitative analysis, and then put forward the algorithms of optimal preview control.

本文分别对平面轨迹最优预见跟踪控制和空间三维轨迹最优预见跟踪控制进行了定性、定量的分析，最后提出了最优预见控制的算法。

It suggests that thepace of proceeding reform should be discretionally adjusted according to social acceptance. The best way is to stick reform intentions to the optimal social acceptance. But the optimal social acceptance also varies with economic growth rate and macroeconomic environment. In searching for the optimal socialacceptance, gradual proceeding is better than radical one. It concludes that the higher growth rate and better macroeconomic environment is, the lower optimal social acceptance is acquired, and the stronger intension can we engage.

作者认为，改革推进的快慢应根据社会的可承受程度&相机抉择&，最好是将改革力度控制在最优的社会可承受程度上不变；改革的最优社会可承受程度也不是一成不变的，它因经济发展速度和其他宏观环境的不同而有所不同，在&寻找&改革的社会最优可承受程度的过程中，&渐进&的改革方式好于&激进&的方式；经济发展速度越快，宏观环境越好，改革所要求的最优社会可承受程度越低，改革的力度就可以越大，经济发展有助于改革的推进。

After discussing the difficulty of on line measuring for slab temperature and the influence on process operation, this paper developed two slab temperature soft sensing models, the principal component regression model and partial least square model, based upon multivariable statistical projection technique.

因此 ，钢坯在炉内的温度分布尤其是在出炉口处钢坯表面和中心的温度对于实现加热炉的闭环最优控制和预测钢坯的轧制效果具有重要的意义，是加热

Taking the model as software desktop, an off-line study on self-seeking-optimize control strategy of reheating furnace is developed.

建立了炉内金属加热过程的数学模型，并以该模型为实验手段，对冶金企业连续加热炉的自寻最优控制进行了离线仿真。

Finally, it analyzes the developing situation of Chinese transportation, states the foreign experiences of promoting IWT, analyzes the future demands to Chinese IWT, then gives a comparative study on three transportation modes of rail, road and inland waterway in the area of the "Two Horizontals, One Vertical and Two Networks".

第三部分研究了内河运输供给调控的机制和现阶段中国内河运力供给调控的思路与对策；提出并研究了用生产函数模型定量描述运输能力的方法；运用动态系统最优控制的理论与方法，首次提出并研究了基于调控基金投放的运力供给调控模型。

Main courses: satellite geodesy, error theory and data processing, physical geodesy, space geodetic techniques and applications, imaging and mapping, navigation, celestial mechanics, photogrammetry, digital image processing, pattern recognition, radio communications and navigation , digital and analog circuits, such as optimal control.

主要课程：卫星大地测量学、误差理论与数据处理、物理大地测量、空间测地技术及应用、影像与制图、组合导航、天体力学、摄影测量学、数字图像处理、模式识别、无线电通讯与导航、数字与模拟电路、最优控制等。

Some Methods of Optimum Control of State Linear System ∑A, B, C

状态线性系统∑最优控制的几种方法

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。