Nonlinear dynamic analysis of high arch dams is carried out considering the opening of joints and the effect of traveling wave with engineering background of xi luodu arch dam whose height is 278 metel based on the theory of interaction of fluid - solid , the coupled fem equation considering compressible water is deduced 以高278m的溪落渡拱坝为工程背景，进行了考虑横缝张开、行波效应等复杂因素的非线性动力分析。基于流固耦合理论，推导了可压缩水体的耦合有限元方程。
This paper deeply studies the manifold learning method called locally linear embedding ( lle ) and improves it . the main achievements in this paper are as follows : 1 . it summarizes the development of manifold learning currently , analyzes the characteristic of nonlinear dimensionality reduction methods , compares the virtues and drawbacks , and makes correlative computer experiments 本文主要对基于流形学习的局部线性嵌入( lle )算法进行了深入的研究与改进,具体工作包括以下四部分: 1 .简要综述了当前流形学习的发展概况,对现有各种非线性降维方法的特点进行分析,比较优点和不足,并进行了相关的计算机仿真实验。
This paper consists five parts including the introduction the summary of situated teaching the use of multimedia for constructing situation , the design and analysis of the experiments and the conclusion . in the introduction , we discuss the background and significance of the study of situated teaching based on multimedia , and the reason why the author has chosen this subject 论文后半部分分析了多媒体辅助情境设计的多种典型的多媒体技术和方法：基于虚拟现实技术的情境、基于流媒体技术的情境、基于多媒体整合的情境等等；并依据远程认知模式和抛锚式教学分别进行实验研究，并且取得了一定的实验效果。
Therefore , making real - time monitor and management and finding out anomaly for network traffic has significant meanings in improving both robust and available for network . at first , this paper introduces the survey and technologies of anomaly detection . then analyses and evaluates are discussed for common anomaly detection algorithms 本文的主要工作如下:本文首先介绍了异常检测的发展概况和相关技术,对常用的检测算法进行分析和评价,为基于流分析的网络异常实时检测方法的研究提供理论基础。
At this time , linear methods fail to find the correlations and distributions of high - dimensional data . to solve this problem , manifold learning approaches have been proposed , which break the traditional linear dimensionality reduction frame mostly constituted by principal component analysis , and gain extensive attention soon 针对高维数据的非线性特性,一些基于流形学习机理的非线性降维方法被提出,打破了以主成分分析为主的传统线性降维方法的框架,很快得到国内外的广泛关注。
Originally in the article , chapter one has stated the background of this subject and basic situation of this system ; chapter two introduced the key technology in real time system - streaming media technology and system used windows media service product technological tool , it offer the strong technological guarantee to develop the whole system ; in chapter three , analyze the realization mechanism of the system 在本文中，第一章说明了该课题的背景和本系统的基本情况；第二章介绍了实时播放系统的关键技术?流媒体技术和系统所使用的windowsmediaservice产品技术工具，为基于流开发适合于网络环境的多媒体远程实时系统提供了有力的技术保障；在第三章中，阐述了远程多媒体实时播放系统的实现机制。
V . problems in the coming out process and thinking studying stream media deeply by this thesis , we discover that stream media technology distance interactive study ’ s interaction quality should be increasingly raised , and in the term of technology should be improved , such as broadband , format , standard , quality of service 五、实施过程中可能出现的问题及思考通过做本次论文,对流媒体的深入研究,发现基于流媒体技术远程交互学习在交互质量上还需要不断改近、在技术上如带宽、格式、标准、服务质量有待改善。
This article after the convection media technology brief outline , from based on streaming media technology aspect convection media technology and so on video on demand , network courseware application , network video frequency direct seeding should serve as the comprehensive introduction in the campus network teaching 本文在对流媒体技术简要概述后，从基于流媒体技术的视频点播、网络课件应用、网络视频直播等方面对流媒体技术在校园网络教学中的应用作了全面的介绍。
The traditional manufacturing method of propellers is basically hand operations requiring considerable skill , time and effort . on the basis of cad / capp / cam / cae integration method and theory , this dissertation investigated the optimal method of propeller based on flow field and structure and the cad / capp / cam / cae integration system based on generalized modular method for propeller is developed 本文在研究搅拌桨cad / capp / cam / cae集成理论和方法的基础上，研究了搅拌桨基于流场分析和结构分析的优化设计，并开发了基于广义模块化技术的搅拌桨cad / capp / cam / cae集成系统。
This thesis introduces the related kaowledge of the concepts the modem long - distance educationg and the flowing - media teachonlogy , it demonstrates the basic framework of the design in the modem long - distance educationg , and it also predicts the long - distance educationg trend based on the flowing - media technology 摘要介绍了现代远程教育的相关概念和流媒体技术的相关知识，给出了基于流媒体技术的现代远程教育教学系统设计基本框架，展示了基于流媒体支持下远程教学发展趋势。
