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These choices have important implications for the "scoring" of countries, and for making valid inferences about the relationship between states and societies.


Typically, space is captured by one or two simple variables that do not adequately model the spatial relationship between states.


The relationship between states and events in a model is represented by a transition diagram.


Practically, we should be thinking of ways of changing the relationship between states and taxpayers.


During the 1990s, in contrast, the basic relationship between states and their universities shifted.

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 In this paper, a linear system S=(A,B,C) is treated as an algebraic object in which A is an operator in a linear space, B a set of column vectors and C a set of functionals ( row vetors). The system structure is ciscussed with algebraic methods. Here the state feedback becomes an operator which is determined by a group of functionals and vectors. In the present paper, the state feedback is also discussed according to an iterative mixed expansion existing between openloop operator, and closed... In this paper, a linear system S=(A,B,C) is treated as an algebraic object in which A is an operator in a linear space, B a set of column vectors and C a set of functionals ( row vetors). The system structure is ciscussed with algebraic methods. Here the state feedback becomes an operator which is determined by a group of functionals and vectors. In the present paper, the state feedback is also discussed according to an iterative mixed expansion existing between openloop operator, and closed loop operator. The methods here have the advantage of simplicity, computational convenience and easiness to be generalized. Furthermore, the relationship between state description and polynomial description of system appears natural.  本文将把线性控制系统∑=(A,B,C)看做线性空间中的一个算子、一组向量及一组泛函所组成的代数对象,用线性代数方法讨论系统的结构。把状态反馈看做由一组泛函和一组向量决定的算子,并根据开环算子和闭环算子之间的一种递推混合展式讨论了状态反馈问题。本文所采用的方法有筒单、便于计算、易于推广的优点。在这里,系统的状态描述与多项式描述之间联系显得很自然。  Based on the results obtained from the analysis of the state variables influencing the sinter quality during sintering process, and from laboratory test and petragraphic analysis, the relationships between state variables——Variables of heat pattern characteristics and contents of binding phase and CF in sinter are determined, and then, the prediction model describing the mechanical strength and reducibility of sinter is established, Parameters in these relationships are determined through tests... Based on the results obtained from the analysis of the state variables influencing the sinter quality during sintering process, and from laboratory test and petragraphic analysis, the relationships between state variables——Variables of heat pattern characteristics and contents of binding phase and CF in sinter are determined, and then, the prediction model describing the mechanical strength and reducibility of sinter is established, Parameters in these relationships are determined through tests and by parameter estimation. The good agreement of the predicated values from this model with experimertal results has confirmed the better accuracy of this model.  本文通过对烧结过程影响烧结矿质量的状态变量进行分析,通过实验室试验、岩相分析,确定了烧结矿粘结相量与铁酸钙含量和烧结过程中状态变量——热波特征变量之间的关系,从而建立了描述烧结矿机械强度及还原性的预报模型。通过试验及参数估计法确定了关系式中各种参数的数值。模型的数值求解及实验结果相当吻合,证实其模型的准确性。  Based on the recent studies of continental structure,the basic patterns of continental structure were summarized,the tectonic model of five layers and two domains on continental structure was presented. From the relationship between state of heat and rock deformation, the continental dynamics mechanism  layering flow and upwardsinking was established. Continental structures are pounding at the basement of plate tectonics. Geologists in China have excellent geologic condition and face a good chance of... Based on the recent studies of continental structure,the basic patterns of continental structure were summarized,the tectonic model of five layers and two domains on continental structure was presented. From the relationship between state of heat and rock deformation, the continental dynamics mechanism  layering flow and upwardsinking was established. Continental structures are pounding at the basement of plate tectonics. Geologists in China have excellent geologic condition and face a good chance of historic challenge.  根据大陆构造的最新研究成果,总结了大陆构造的基本型式,提出了大陆五层两域的构造模型,并从物质流变和构造变形的有机联系出发,探讨了大陆动力学的层流隆陷机制。   << 更多相关文摘 
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