查询词典 dissertation

Some issues in the design and implementation of DIS network are discussed in the dissertation.

本文在讨论了DIS标准化的必要性和重要性的基础上，分析了DIS标准的组成内容，以及在通讯层和应用层的标准化方法。

The focus of this dissertation has been to analyze this area and to discern its future conditions.

本文的重点放在对该地区的分析以及未来的发展战略。

The main objective of this dissertation was to develop methodologies with capability of engineering application for simulating flow in fractured rock using discontinuum models. The study work includes three parts. In the first part, numerical methodology of three-dimensional discrete fracture network model casing on hybrid BEM-channel was presented, and the technique for improve the model's computing efficiency was also studied. Firstly in this part, computer simulation methodology based on the Baechermodel for generating network of discrete fractures was presented, which includes the follow details: probability distributions of fracture density,orientation, trace length, size, and aperture and estimation of their statistical parameters; stochastic models of fracture network; Monte-Carlo's simulation method; numerical simulation procedure and technicality.

给出了离散裂隙网络模型所依据的基本假定；发展了基于Baecher模型的离散裂隙网络计算机随机生成技术：详细地推导了单裂隙渗流和多裂隙相交网络渗流的边界单元法公式，发展了离散裂隙网络中稳态渗流的边界元数值技术，并且讨论了相关的具体数值技术细节，如角点的处理方法，单元的自动剖分等：描述了混合边界元—管流模拟方法及其数值实现；研究了裂隙网络的简化方法，并针对裂隙网络边界元法的特点提出了一种改进的分块三角分解法。

ABSTRACT This dissertation is a study of the traditional Chinese poetics from the angle of discourse analysis.

本文从话语分析的角度切入中国传统诗学的研究。

section summarizes simply innovations and inadequacies in this dissertation,specially,it introduces Lyotardpragmatic thought,who defends the legitimacy of scientific knowledge in using the methods and idea of pragmatics,reinterprets modern scientific crisis,social variation and cultural symptoms,and holds extricating the right of legitimacy from metanarrative ,deciding it through gamers and discourser,then,setting up a foundation for legitimacy of scientific knowledge.This inspires the new study about scientific rhetoric.

结语部分简单总结了本论文在写作上创新的地方和不足之处，特别是着重介绍了利奥塔把语用学的方法和观念运用于辩护科学知识的合法性，用科学知识语用学来重新解释当代的科学危机、社会变异和文化症状，主张把合法性的权利从"元叙事"的束缚中解脱出来，而由游戏者和对话者本人去决定，从而对科学知识的合法性问题进行奠基，这启发了新的"科学修辞学"问题的研究。

section summarizes simply innovations and inadequacies in this dissertation,specially,it introduces Lyotard'pragmatic thought,who defends the legitimacy of scientific knowledge in using the methods and idea of pragmatics,reinterprets modern scientific crisis,social variation and cultural symptoms,and holds extricating the right of legitimacy from metanarrative,deciding it through gamers and discourser,then,setting up a foundation for legitimacy of scientific knowledge.This inspires the new study about scientific rhetoric.

结语部分简单总结了本论文在写作上创新的地方和不足之处，特别是着重介绍了利奥塔把语用学的方法和观念运用于辩护科学知识的合法性，用科学知识语用学来重新解释当代的科学危机、社会变异和文化症状，主张把合法性的权利从"元叙事"的束缚中解脱出来，而由游戏者和对话者本人去决定，从而对科学知识的合法性问题进行奠基，这启发了新的"科学修辞学"问题的研究。

The main work of the dissertation is summarized as follows:First, a new method of digital watermarking scalable vector graphics based on discrete fractional fourier transform is proposed.

本文主要的工作归纳如下：首先，提出了基于离散分数傅立叶变换的SVG图形水印算法。

Some examples are given in this dissertation. First, the coordinate values of a group of discrete points on the cam profile are achieved by conventional design method which are then used as measured data of the cam profile. Then the kinematic analysis of the cam mechanism is performed by the method developed in this paper. The reverse results are compared to the theoretic values.

本文以已知从动件运动规律的凸轮机构为例，利用正设计方法求出凸轮实际廓线一组离散点坐标值，并以此作为凸轮检测数据，运用本文提出的分析方法进行运动反求，并将反求所得结果与理论结果加以分析比较。

In this dissertation, two new proxy signature schemes from bilinear pairing are proposed, which are all based on discrete logarithm problem on GDH group. In the first scheme, the proxy signing ability can be revoked during the period of validity. Then, the malicious signer can not sign messages any more. Moreover, in this scheme secure channels are not needed.

本文基于GDH群的离散对数问题结合短签名的特点设计了两个代理签名体制，第一个体制可以在证书的有效期内撤销代理签名权，从而防止不诚实的代理签名者继续签名，而且无需安全信道。

A novel hybrid algorithm, which combines predictor-corrector primal-dual interior point method and genetic algorithm, is presented for dynamic and static reactive optimization in this dissertation. The algorithm fully make use of the advantage of interior point method in solving successive optimization problem and the advantage of genetic algorithm in solving discrete optimization problem. The original problem is divided into three parts: total successive problem, discrete problem and successive problem.

结合内点法和遗传算法，本文提出了一种新颖的混合算法用于求解动、静态无功优化问题，算法充分利用了内点法易于求解连续优化问题和遗传算法易于求解离散优化问题的优势，将原优化问题分解为初步的连续优化问题、离散变量优化问题、连续变量优化问题这三个子问题分别求解。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。