控制理论

The method is useful tosolve the influence of influent quantity and enhance the stability of control system.

智能控制是一门新兴的理论和技术，是控制理论发展的高级阶段。

The modern control theory is applied to develop the design principle and method for automatic control of irrigation canal.

本文用现代控制理论研究渠道自动控制的设计理论和方法。

How to improve the built-in control system that the contemporary business administered below the mechanism , the writer thinks :Built-in control theory research ought to be strengthened ,Establishes to amplify the standardized setup of built-in control ; Fix up once more our country board of directors authority setup ,Introduce from elsewhere independent director's system ,Improving law of corporation man administers the composition ;Strengthening the business crisis administer consciousness ,Establish the business hazard control system ;The implementation with artificially originally the human resource administers the tactics ;Strengthen the independence that the inside audited ,Establish together with the audit pattern of inside that the contemporary business system is adaptable each other ,Business built-in control effect and effectiveness are lifted .

如何完善现代企业治理机制下的内部控制制度，笔者认为：应加强内部控制理论的研究，建立健全内部控制的标准体系；重新安排我国董事会的权力格局，引进独立董事制度，完善公司法人治理结构；加强企业危机管理意识，建立企业风险控制系统；推行以人为本的人力资源管理策略；加强内部审计的独立性，建立与现代企业制度相适应的内部审计模式，提高企业内部控制的效果和效率。

For such a single-input-two-output unstable system with strong nonlinearity and strong coupling,the control scheme was accomplished by adding a tracking differentiator and the feedback control law comprised of the errors of the two controlled variables,instead of the only one in the usual ADRC scheme. This method expanded the range that the ADRC scheme can deal with.

倒立摆系统以其结构简单直观，构件参数和形状易于改变，成本低廉，而本身又是一个高阶次、不稳定、多变量、非线性、强耦合系统，被公认为自动控制理论中的典型试验设备，也是控制理论教学和科研中不可多得的典型物理模型。

Thus, motor control theories are more than just an approach to explaining action. Often they stress different aspects of the organization of the underlying neurophysiology and neuroanatomy of that action.

因此，运动控制理论不仅仅是解释运动执行的理论，更常规地来看，它们强调了运动控制的神经生理学和神经解剖学不同方面。

The relationship between the Normal Matrix Approach and H〓 design approach is studied theoretically.

本文以频率域控制理论为基础，系统地研究了设计多变量鲁棒控制系统的正规矩阵理论，提出了三种新设计方法。

On the basis of frequency－domain control theory, the Normal Matrix Approach to the design of robust control systems is systematically developed in this thesis, together with three new design methods.

本文以频率域控制理论为基础，系统地研究了设计多变量鲁棒控制系统的正规矩阵理论。。。

Based on analysing the respective characteristics of regular PID controller in trational control theory and fuzzy logical controller in intelligent control theory, the idea and technique of expert system is introduced to develop a novel kind of hybrid intelligent controller. It can coordinate two kinds of control algorithms and tune the control parameters on-line for different working zones of the controlled process.(3) The hybrid knowledge expression model, which combines discrete state space model, fuzzy relational model and rule base model, is proposed based on analysing the characteristics of all kinds of knowledge expression models. The knowledge of the controlled process in different aspects can be expressed resonably by it. Based on the model mentioned above, the related optimization strategy for complex system is developed.

本文的主要贡献体现在：（1）以炼油厂的催化裂化装置和钢铁联合企业的大型焦炉装置两个典型的复杂工业过程为例，分析了工业大系统的许多不易控制的特性，并归纳了其中的几个典型特征；（2）针对经典控制理论中的常规PID调节器和智能控制技术中的模糊逻辑控制器各自的特点，通过引入专家系统的思想和方法，开发了一类混合式专家控制器，它同时具备在线协调两种不同控制规律和自动学习控制规则的能力；（3）通过分析各种知识表达模型的特点，提出了一类包括离散状态空间模型、模糊关系模型和规则基模型在内的混合知识表达模型，它能对过程知识在各个不同侧面给予合理的描述。

By means of the semigroup theory, spectrum theory, positive cone theory, integrated equation theory and optimal control theory, we obtain the existence of thresholds of these models, the existence and stability of the infection- free equilibrium and the endemic steady state, and the existence of optimal vaccination strategies, etc.

运用泛函分析中的半群理论、谱理论、正锥理论以及积分方程理论和最优控制理论，系统地研究了这些模型的阈值的存在性，无病平衡态和地方病平衡态的存在性和稳定性，最优接种疫苗策略的存在性等。

Based on theory of structural dynamics and differential equation, the requirement of state complete observability is infered related to vibration modes, which is more acceptable for engineering than the counterpart of modern control theory related to rank of matrix in algebra.

这一条件较之现代控制理论中以矩阵秩的形式给出的相应条件更易为工程实际所接受，对测量装置的位置设置提供了理论依据，并指出无干扰驱动项的经典的Luenberger观测器对结构控制是不适宜的。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。