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Based on the factors about infrared imaging and simulation modeling,the key technology of real-time system for infrared image generation of plane background was enumerated.The infrared imaging simulation and modeling can be divided into four parts:target 3D modeling,plane trail fire,target and background infrared radiance,atmosphere transmission.The method of infrared radiance modeling with Vega was discussed.Finally the process of infrared image generation was presented based on sensor vision module of Vega.

根据红外成像理论和仿真建模特点，列举了以飞机为目标的实时图像生成系统中仿真建模的关键技术；从目标3D建模、飞机尾焰建模、目标和背景辐射建模和大气传输等几个方面阐述了红外成像建模的特点和需求；提出了应用Vega软件专用模块进行红外辐射特性建模的方法；最后给出了利用Sensor Vision模块生成红外图像的过程。

Its technology fetures include adopting plug-in technology and modulized structure to guarantee every component can be upgraded and added/removed alone; implementing 'push' mode backup by self-described data file structure to support light weight backup window and to visit backup client safely; adopting various kinds of standard TCP/IP-based internet agreement to guarantee it's expansibility; adopting XML-based message format to guarantee it's compatibility with previous versions; adopting unified resource management agreement to simplify the management of plug-in package and guarantee opening of functions.

它采用插件化、模块化技术保证各组件的单独升级和增删；采用自描述的数据档案结构实现了"推"备份模式来支持小备份窗口并保证了客户机的访问安全；采用基于TCP/IP之上的各种标准Internet协议来保证软件的可扩展性；采用基于XML的消息格式来保证软件升级换代的兼容性；采用统一的资源管理协议来简化软件插件的管理，保证软件功能的开放性。

The digital watermarking technology based on spatial domain has characterics of computer briefness and bagger embedded capability, so it has been abroad studied in the first stage of watermarking technology. But gradually it has been replaced by watermarking technology based on frequency domain because of its disadvantage of robustness.

基于空间域的数字水印技术具有运算简单，嵌入容量大的特点，在水印技术发展之初得到广泛研究，但因其鲁棒性太差而逐渐被变换域方法所代替。

Based on the available crystal structures of MMPs, the structure-activity relationship of barbiturate compounds was discussed; and the reason for imidazole-based compounds'low activity was presented.

本文结合已有的晶体结构，对巴比妥酸类作了初步的构效关系探讨，并对咪唑类化合物活性低的原因进行了初步分析，对进一步的结构改造和合理设计具有一定的指导意义。

In an approach that is similar to the progression from problem-based to project-based learning described by Barron et al.

在这种方法类似于从问题的进展为基础，以项目为基础的学习所描述的巴隆等人。

A multidimensional online data analysis model based on the business space and method base is introduced, and a framework based on the model is presented.

本文介绍了一个基于业务空间和方法库上的联机分析模型以及多维联机数据分析系统框架XOLDAS的实现技术，采用该框架可以快速开发OLAP系统并具有良好的可扩展性。

In this article, based-on content image retrieval is studied based on these two methods of texture feature of fractal dimension.

本文以上述两种不同方法提出的纹理特征为基础，以基于内容的图像检索为研究对象。

Secondly, based on the literature review and housing price research, based on the basic variables and the basic variable classification system, summarizes the commodity housing prices in China.

其次，本文在国内外住房价格研究文献梳理基础上，根据基本变量和非基本变量分类方式，系统总结出影响我国商品住房价格的主要因素。

Based on the linear MIMO model of Volterra system for blind identification, the blind identification method of Volterra system based on the basis of the noise polynomial vector space is presented.

基于 Volterra 系统盲辨识的线性 MIMO 模型，提出了基于噪声多项式向量空间基的 Volterra 系统的盲辨识方法。

"Curators are starting to realize that they can be challenged by the audience," said Pascale Bastide, the Paris- based founder of the Museum of Afghan Civilization, an entirely Web-based institution scheduled to make its debut later this year.

阿富汗文明博物馆」是完全设在网路上，预定今年问世的机构，住在巴黎的创办人巴斯卡E巴斯提德说：「馆长开始发现，读者会挑战他们。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。