描述

RAHD is invariant to translation,scale, and rotation and the retrieved shapes are very perceptually acceptable due to the capturing of shape features in both radial and angular directions in spatial domain.

虽然目前文献上有很多种图像形状描述子，但是可以归分为两大类：基于轮廓的形状描述子和基于区域的形状描述子。

The description methods of natural scenery was studied based on fractal, that is, recursive method, L-system method, IFS and IFS description method was put forward based on sine or cosine. This method overcomes angularity and consistency of recursive method, L-system method and IFS, and the variety of fractal sculpting consequence can be added and the basis for the later research and the application was provided.

对基于分形的描述自然景物方法，即递归洪、L-系统法、IFS法进行了分析研究，在此基础上，提出基于正余弦的IFS描述法，该方法克服了递归法、L-系统法、IFS法等描述方法的生硬性和一律性，增加了分形造型结果的多样性，为以后的深入研究和应用提供了依据。

We proposed a new aspect oriented ADL AC2-ADL,aiming to offer an effective systematic solution for the representation of aspect oriented software system, AC2-ADL provides aspectual components to describe the crosscutting concerns. In addition, by introducing Aspectual Connector and abstracting the joinpoint of the architecture,it described the complicated interactions among the software architecture elements.

通过设计面向方面的软件体系结构描述语言AC2-ADL，使用方面组件明确地描述系统的横切关注点；并引入方面连接件以及抽象出软件体系结构语境中的注入点，呈现结构之间复杂的交互，以解决不同关注点的分散和交织等问题，试图为设计和描述面向方面的软件系统的软件体系结构提供一种有效的解决方案。

In the doctoral dissertation,which focuses in lattice-ordered preferencestructure theory and lattice-ordered decision-making theory,lattice-orderedpreference relation displaces complete preference relation in order to makecharacterization of preference structure general,and in order to propose a newthinking of weakening completeness axiom,and also in order to put forward atheoretical base for setting up the rational behavior axioms and utility theorywith lattice-ordered preference structure.

本文有关格序偏好关系理论的研究将Von Neumann-Morgenstern理性行为公理中偏好关系的全序描述推广为格序描述，使得对偏好结构的描述更为一般化，并且为弱化公理体系中完全性或连通性假使提供一条新思路，为建立基于格序理论的理性行为公理及其相关的效用理论提供理论依据。

The chapter 5, The Deductive Axiomatics of Theory of Evolution andSelf-organization Theory, proposes that the description which transfer thefunctional statements about phenomena of life into causal statements eventuallyinvolves theories about evolution.

第5章"进化论的演绎公理系统和自组织理论"中提出，把关于生命现象的功能性描述或目的性描述转换为因果性描述，最终要涉及到进化的理论。

Then how to use limited Markov chain and Bayes' rule in DHCM to dynamically describe the evolution of enterprises' cooperative relationships, specifically evolution of cooperative relationships building and cooperative relationships selecting is analyzed. Finally, how to optimize related action sets in the model during the evolution is discussed.

模型首先对企业整体协作关系进行了一般性描述和形式化描述，之后利用有限马尔可夫链和贝叶斯法则对在面临新的市场需求的情况下企业之间是否建立协作关系以及建立何种协作关系进行了动态描述，并分析了在新的市场需求下，企业实体将如何选择最优的行动集。

The way to specify adaptive software architecture is that ports of component and roles ofconnector are formalized by process or agent, their interaction is formalized by composition and sum operator.

本文使用Pi演算描述软件体系结构的方法是使用进程或实体描述构件的端口和连接件的角色，使用组合和求和等操作描述它们之间的交互。

Eular -Bernonulli beam model and Tomosimko beam model were adapted to study the inherence vibration properties of the pipelines under dynamical loads, and the analytical answers of the chanmical results were brought out in the fifth chapter. And gave priority to the Eular -Bernonulli beam model, the simply and convenient analytical resolution for the response of the pipelines under dynamical traffic loads through the impulse function and the congruence method of the vibration form and so on.

本文采用Eular-Bernonulli梁模型和Tomosimko梁模型对动力下Kelvin粘弹性地基中管道固有振动性状进行了分析，提出了各力学结果描述的解析式；并以Eular-Bernonulli梁模型为主，基于脉冲函数、振型迭加法等对管道在动力交通荷载作用下的管道响应问题提出简单便捷的解析算法；在管道受力结果的分析中，考虑管道响应输出的随机性，将管道响应用随机过程来描述其概率特征，使得结果描述更加真实准确。

Bringing security metric as a QoS parameter is a new strategy in QoS routing.Aiming at the problems that the way of characterizing the link safety using only one security metric in QoS routing,a strategy that using multi-security metric as routing parameter is proposed.This will characterize the link safety much more exact.The authors will use the strategy mentioned before for secure routing based on differentiated service.

将安全度量作为一种QoS参数进行路由选择是目前网络安全路由研究的一个新思路，针对现有方法采用一个安全度量参数描述链路安全性，进行路由选择存在的问题，提出一种多安全度量的链路安全性描述策略，能够更加全面准确地描述网络链路的安全特征；该描述策略应用于区分服务模型下的安全路由选择，并提出了基于改进的非支配遗传算法的多目标最优化安全路由算法求解这一多目标多约束的NP完全问题。

Bringing security metric as a QoS parameter is a new strategy in QoS routing.Aiming at the problems that the way of characterizing the link safety using only one security metric in QoS routing,a strategy that using multi-security metric as routing parameter is proposed.This will characterize the link safety much more exact.The authors will use the strategy mentioned before for secure routing based on differentiated service.An algorithm named MOSRA（Multi-Object Optimal Secure Routing Algorithm）based on nondominated sorting genetic algorithm under Differentiated Service Model is proposed to solve the NP complete.

将安全度量作为一种QoS参数进行路由选择是目前网络安全路由研究的一个新思路，针对现有方法采用一个安全度量参数描述链路安全性，进行路由选择存在的问题，提出一种多安全度量的链路安全性描述策略，能够更加全面准确地描述网络链路的安全特征；该描述策略应用于区分服务模型下的安全路由选择，并提出了基于改进的非支配遗传算法的多目标最优化安全路由算法求解这一多目标多约束的NP完全问题。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。