Firstly , based on a modified lyapunov function and the approximation capability of the first type fuzzy systems , two new design schemes of decentralized adaptive fuzzy controller for two class of similar multivariable nonlinear continuous systems with a triangular matrix function control structure is proposed in this paper , respectively 本文首先对两类结构相似的具有下三角形矩阵函数控制增益的多变量非线性连续系统，基于一种修改的李亚普诺夫函数，并利用第一类模糊系统(即具有线性可调参数的模糊系统)的逼近能力，分别提出一种分散自适应模糊控制器设计的方案。
Delta operator is a unified description method for linear continuous systems and linear discrete systems . unified conditions for energy decoupling of discrete systems and continuous systems with input transformation or both state feedback and input transformation are given in terms of linear matrix inequalities . the conclusion and perspective are given in the end of the paper 研究了基于delta算子的线性系统及不确定线性系统的输入-输出能量解耦问题，分别给出了仅具有输入变换、同时具有状态反馈和输入变换情况下的能量解耦方法，结果以线性矩阵不等式的形式给出。
The features of existing chaos synchronization methods are analyzed . a novel chaos synchronization method is presented , which has the following advantages : synchronization can be realized for not only alike - structure chaos system but also different - structure chaos system , not only applying to continuous system but also to discrete system , it is not necessary to consider the initial conditions in synchronization , and no necessary to calculate conditionally lyapunov exponent . a lot of simulation results indicate the effectiveness of the method 分析了现有混沌同步方法的特点，提出了一种新的混沌同步方法，该方法只有如下一些优点：既可以实现同构混沌系统的同步，也可以实现异构混沌系统的同步，既可以应用于连续系统也可以应用于离散系统，同步时不需要考虑初始条件，也不需要计算条件李亚谱诺夫指数，大量的仿真结果表明了该控制方法的有效性。
The robust control of the discrete systems is a branch of the control theory . it is parallel with the continuous systems " theory . the discrete - time systems , especially with uncertain and time - delay exist in the fact with the spreading of the field for the study of the system ' s theory and the applying of the computer ' s technology 离散系统的鲁棒控制是与连续系统鲁棒控制相平行的控制理论分支，而且随着系统理论研究的深入和计算机技术的广泛普及与应用，离散系统特别是带有不确定性和时间滞后的不确定离散时滞系统已广泛存在于实际问题之中，对这类复杂系统鲁棒控制的研究正在引起人们的关注与重视。
Using theory of structure intensity and prestressed concrete bridge , this paper reviews theoretical computing method of stress and deflection . making use of the procedure of computing bridge structure , the structure of simply supported - continuous system is calculated and the result is analyzed , the character on force and deflection is generalized in the paper 运用力学理论、混凝土结构强度理论和桥梁结构相关理论论述了桥梁应力与变形的理论计算方法；利用专用桥梁结构计算程序结合具体工程项目中的简支转预应力连续结构进行了数值模拟计算，并对计算结果进行理论分析，提出这种结构型式在受力状态与结构变形上的特点。
Coordinate transformation , matrix , vectors , newton ' s law , conservation theorems , simple harmonic oscillator , non - linear oscillations , gravitation , euler ' s equation when auxiliany condition are imposed , the delta notation , lagrangian and hamilitonian dynamics , central - force motion , dynamics of a system o f particles , motion of noninertial reference frame , dynamics of rigid body , coupled oscillations , orthogonality of the eigenvectors , continuous system 座标变换、矩阵、向量、牛顿定律、守恒定律、简谐振动、非线性振动、引力、尤拉式方程式及附加条件、符号、拉格兰及汉米尔顿力学、中心运动、多粒子系统动力学、非惯性参考座标运动、刚体动力学、耦会振动、本微向量正交性、连续系统。
Based on modeling and analyzing the discrete mathematic model of hydraulic turbine governor system , the edge equation of stable domain of the discrete control system is obtained . according to this equation , the stable domain is specified . compared with continuous system , the changing rules and characters of the discrete system are found , which provide the theoretic foundation for researching the control strategy and the parameter adjustment of discrete control system of the hydraulic turbine governor 在建立水轮机调节系统离散数学模型的基础上，通过分析，给出离散调节系统的稳定域边界控制方程，通过稳定域绘制，比较离散与连续系统的差异，找出离散调节系统稳定域的变化规律和特点，从而为研究水轮机离散调节系统的控制策略及调节参数整定提供理论依据。
- - introduction of the problem there are several kinds of control designs for nonlinear adaptive system . for two concrete examples of nonlinear continuous systems and nonlinear discrete systems , this thesis obliterate the key obstacle that is encountered when solving the problem of adaptive control by nn 非线性自适应控制有各种各样的控制方案，本文针对非线性连续时间系统及非线性离散时间系统，具体到两个实际的例子，解决了利用神经网处理自适应问题所遇到的一关键性障碍。
Therefore , it is no time to delay that refining the design method of tall buildings . in this paper , tall frame and layered soil are treated as a single continuous system and an interactive analysis method is presented using finite element method and finite layer method . the settlement of foundation and the internal force of the frame are calculated with different stiffness of the superstructure 本文基于共同作用分析法研究高层框架和桩基础的设计，即将高层框架与桩基础视为一个统一的整体，采用有限元和有限层法进行共同作用分析，研究了上部结构刚度变化等因素对基础沉降与框架内力的影响，并与常规设计法进行了比较分析，为改进和提高框架结构设计的安全和经济提供了依据。
Firstly , the paper studies the urbanization motivities integrated construct a simple continuum model of urbanization and advances the good mutual - active pattern between urbanization and motivity mechanism . on the other hand , each motivity affects each other , go into each other , come into being a uniform and continuous system and promote the urbanization process 另外,不同的动力机制对城市化进程的影响方式有所不同,产业结构转换对城市化的影响是直接的,而制度变迁对城市化则既有直接影响又有间接影响,直接影响表现为城乡分割制度对城市化的影响,而间接影响则表现在经济体制通过影响产
