实时应用

Computing geometry play key role in the generation of realistic images,and also has important application in real-time rendering.

论文摘要计算几何在真实感图形的生成上有着很重要的应用，同时也应用于实时呈现技术。

The conceptions and algorithms of information exchange with computer in English talk-back, expression, quatification, acquirement and storage of expert experience in system are given According to these research, a intelligent expert consulting system used for hydrological forecasting has been developed.

以及参考一校正算法，并设计出一个稳健性水文模拟专家系统，论证了这一方法的可行性与优越性。应用本文研究成果设计的长江三峡实时水文预报系统应用软件具有功能强，操作简便。

Objective: To evaluate the alteration of left ventricular long-axis systolic function during left ventricular geometric remodeling in essential hypertension using real-time triplane quantitative tissue velocity imaging and to investigate its clinical significance.

目的：应用实时三平面定量组织速度成像测定原发性高血压患者左心室重构过程中长轴收缩功能的变化，探讨其临床应用价值。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的"虚拟仪器"的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

In the meanwhile, using the radar sea-ice tracking system to foUow up forecasting data, and the vector diagram of drifting ice filed and nomination at spot manner.

同时首次现场实时计算出雷达冰漂流场矢量图，并开展了雷达海冰数值跟踪预报，在冰区油轮外输作业中得到很好应用，为雷达技术对水体和海冰监测和预报、遥感应用新领域提供科学依据。

In measuring inreal time and automatically controlled one-chip computerapplication system, the one-chip computer often uses as a key part,only one-chip computer respect knowledge is not enough, should alsofollow the structure of the concrete hardware, and direct againstand use the software of target's characteristic to combineconcretely, in order to do perfectly.

在实时检测和自动控制的单片机应用系统中，单片机往往是作为一个核心部件来使用，仅单片机方面知识是不够的，还应根据具体硬件结构，以及针对具体应用对象特点的软件结合，以作完善。

It has banausic value in inspecting automobile braking performance and the development of the inspecting instrument.

既有数学模型的推导，方法理论的探讨，又有实际控制系统设计过程，而且设计对象的应用，本文设计的汽车制动性能测控系统具有检测精度高、可靠性好、实时性好等优点，在实际应用中也取得了很好的效果，对汽车制动性能的检测以及检测设备的发展有很重要的实用价值。

This invention be able to real time detect, display and deliver data to computer for display and store. This invention not only can apply to detecting led component in crystal engine gutter tail's solder, also can apply to internal heating type multistage series vacuum delead kiln, to solve Pb content automatic detection problem of key equipment's Sn - Pb alloy.

本发明可实时检测、显示，以及将数据送上位机显示和存储，既可应用于结晶机槽尾焊锡中铅成分的检测，还可以应用于内热式多级连续真空脱铅炉中，以解决两关键设备的重要参数Sn-Pb合金中Pb含量自动检测问题。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的&虚拟仪器&的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

Thus video streaming on-demand, which is the most popular and most important distribution mode of streaming media, even today is still severely limited in scope and reach.In order to improve the QoS of the VOD system, this dissertation introduces several principles to design the video streaming on-demand system, then presents three kinds of system structures according to the scale of the VOD system, and then designs several corresponding schemes or policies to optimize the performance of the VOD system.In chapter 3, we design a multicast scheme named Dynamic Batched Patching, which can be considered as an ameliorative Patching algorithm.

本文将视频流点播系统按应用规模分为三种体系结构，然后提出了相应的解决方案来满足不同应用规模条件下的各个设计原则：在本文第三章中提出了一个称为Dynamic Batched Patching的实时视频流点播多播传输机制，该传输机制实现简单，可以有效地减少对客户端缓存容量的需求，减少客户端的启动延时，最主要的是在本传输机制中系统的资源利用率非常高，从而大大的提高了系统的用户接纳容量。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。