查询词典 realizability

But as a result of the practical application realizability, the technical maturation and time hastiness, has carried on the theoretically discussion analysis only in this, the following work waits for in continues to study.

但由于实际应用的可实现性、技术成熟性及时间的仓促，在此只进行了理论上的探讨分析，后续工作有待于继续研究。

At first, this paper surveys nonlinear control and the applications of neural networks in control respectively. Then it studies definitions, mathematical descriptions and conditions of invertibility for nonlinear systems, which are used to analyze the feasibility of inverse system control method. Conclusions about the feasibility of inverse control and the realizability of αth-order inverse systems in engineering are achieved. Furthermore, this paper discusses the feasibility, structure and identification of neural network αth-order inverse system for general single-input single-output continuous or discrete nonlinear systems and various composite control methods based on the αth-order inverse. At last, as a part work of an actual project, this paper focuses on the design of neural network αth-order inverse control method for thyristor controlled series compensation in power systems and its effect in improving the stability of power systems.

本文首先分别概述非线性系统的控制与人工神经网络在控制中的应用；然后研究非线性系统各种可逆性的定义、数学描述及可逆性条件，并用于分析逆系统控制方法的可行性，得出有关逆系统控制方法可行性的结论，阐明一般情况下α阶逆系统才工程可实现；接着本文针对一般单输入单输出连续、离散非线性系统，研究神经网络α阶逆系统的可行性、结构与辨识以及基于神经网络α阶逆系统的各种复合控制方法，并给出应用例子；最后本文结合实际项目，针对采用可控串补的电力系统，设计神经网络α阶逆系统控制方法，研究其对提高电力系统稳定性的作用。

This paper first analyses and summarizes the ststus quo and evolution trend of encryption, some common used cryptograph are introduced, including the algorithms used in symmetric cryptosystem and asymmetirc cryptosystem. We describe the theory of each algorithms and compare the elliptic curve cryptosystem with the other two asymmetric cryptosystems to show the advantages of this algorithm. Second, the principle of ECC is discussed, including the math foundation of ECC, basic conception of elliptic curves, constructiong idea of ECC, operation on the elliptic curve and so on. Third, the current attacks of ECC were analyzed deeply, and an algorithm based on limited prime number field was constructed. We analyzed its realizability in theory, and implement it by using certain function of MIRACL software package. Latter half in this paper, the implementation model of a simple elliptic curve encryption system which based on GF has been introduced. The paper also put a deep analysis on the algorithm of point addition and point multiplication.

本文首先对密码技术的发展现状及其发展趋势进行了分析和综述，详细的介绍了私钥密码系统和公钥密码系统的发展，说明各种算法的原理和优缺点，并给出了一些典型的密码体制的简要分析，重点将椭圆曲线算法与其它几种公钥密码算法比较，说明椭圆曲线算法的优势；其次，探讨了椭圆曲线密码体制的原理，包括椭圆曲线密码的数学基础、基本概念、椭圆曲线密码体制的构造思想等问题；第三作者对椭圆曲线的攻击现状作了详细的分析，针对所使用的大素数域F_p，设计了素数域上安全椭圆曲线产生的算法，从理论上做了可实施性分析，从软件上做了具体实现；在本文的后半部分，提出了一个简单的基于有限素数域上的椭圆曲线加密方按算实现模型，并对SECES中设计的点加和点乘运算进行了深入分析。

Therefore, the objective of this paper is to analyze the characteristics of VWDK and the realizability of UNB communications.

本文的目的是分析VWDK调制的特点及UNB通信的可行性，为后续的研究工作进行铺垫。

The realizability and effect of the simplification are analyzed in theory.

寻找多维模糊推理的简化方法是解决多维问题的一个途径。

The research will play an important roles in post-processing; realizability and practicality of knowledge discovery.

这项研究对知识发现的后处理与可实现性、实用性起着重要的作用。

These methods are valuable because of their simplicity, reality and realizability.

这些方法注重运算的简捷性、实时性以及可实现性，具有较高的实用价值。

We have noted already that reductionism is at odds with the evident possibility of multiple realizability.

我们已经注意到还原论和可多重实现的明显可能性不一致。

The break of symmetry caused by attenuation is studied, and the realizability condition of lossy network is discussed.

研究了损耗引起的对称破缺，并讨论了有耗网络可实现条件。

We make an emergency budget of reality and realizability to face another energy crisis.

为应对另一场能源危机，我们应制订一个现实可行的应急预案。

Next time I see you,I shall give you a black eye.

下次我看见你，我会打你一顿。

In this paper,design scheme of classification system of wood surface color is established.

提出了木质板材颜色分类的系统设计方案。