面向汽车零部件产业链云服务平台的采购订单整合技术

针对汽车零部件产业链供应商企业群的订单整合集成问题,提出了面向云服务平台订单整合的技术方案.在抽象出订单整合多级映射关系的基础上,建立了多层级订单映射树模型.采用弹性化的动态可配置接口,构建出面向汽车零部件产业链云服务平台的映射规则库,将复杂映射转换为直接映射.运用订单映射树的层级关系,采用映射整合算法,将来自不同整车厂的大批量异构订单整合为供应商企业群所需的零部件生产计划集.结果表明,运用多层级订单映射树模型能支撑面向汽车零部件产业链云服务平台订单整合的扩展应用.     

Potensoft: MATLAB-based software for potential field data processing, modeling and mapping

An open-source software including an easy-to-use graphical user interface (GUI) has been developed for processing, modeling and mapping of gravity and magnetic data. The program, called Potensoft, is a set of functions written in MATLAB. The most common application of Potensoft is spatial and frequency domain filtering of gravity and magnetic data. The GUI helps the user easily change all the required parameters. One of the major advantages of the program is to display the input and processed maps in a preview window, thereby allowing the user to track the results during the ongoing process. Source codes can be modified depending on the users' goals. This paper discusses the main features of the program and its capabilities are demonstrated by means of illustrative examples. The main objective is to introduce and ensure usage of the developed package for academic, teaching and professional purposes.     

基于PC和OpenGL的全景图象360度漫游技术

讨论了利用OpenGL图形软件开发系统在PC机上实现全景图象360度漫游。,探讨了采用基于像素匹配的方法进行图象拼接来生成全景图象,并在此基础上利用OpenGL的纹理映射的技术,将全景图象的一部分作为纹理图象映射到由OpenGL预先构造出的虚拟视点空间上,通过改变纹理图象在PC机上实现虚拟场景的360度任意漫游。     

多重空间映射与超结构查询

多重空间映射是将多个信息系统数据库中的事物组织成多层逻辑空间,通过映射快速地确定查询对象。超结构查询是通过“多重空间映射”的方法,实现超越应用系统结构的、快速、方便、广泛的信息查询的一种新技术。它不受功能系统的限制,不受数据库表结构的限制,能够在各个功能系统的多个数据库表中查找匹配的信息,可有效解决多个应用系统范围的数据查询,并使信息系统中的数据得到更充分的利用。     

球面化算法的设计及其实现

本文通过数学模型推导出图像变换中球面化算法的算法原理,得出了图像变换的映射函数,讨论了该算法应该注意的一些问题,并用面向对象语言Viual C^ 6.0实现了该算法。     

面向对象分析技术在关系型数据库设计中的应用

介绍用面向对象的分析方法来设计关系型数据库,具体描述对象关系映射为关系型数据库的方法。     

基于感兴趣区的图象近无损压缩

无损感兴趣区（Lossless Region of Interest (ROI)图象压缩方法,即在感兴趣区采用无损压缩,而在其他区域采用有损压缩,从而保证了重要信息不丢失,并尽可能提高衅象的压缩比,在整形小波变换（IWT）和嵌入式零树编码的基础上,实现了无损感兴趣区（Lossless ROI)的图象近无损压缩,并提出了一种小波变换域形状编码算法－－树映射形状编码,同时给出了算法的原理及实现,并进行了相关实验,实验结果表明,该算法能够提高压缩效率,且压缩效率取决于感兴趣区的大小以及对不感兴趣区图象的质量要求。     

一种大视景图象库的组织方法研究

针对大视景图象具有存储信息量巨大和基本构成图形有限的特点,提出了多级库的思路,用以大量压缩视景图象信息的存储容量,该多级库由图形库和多级映射库组成;同时给出图形库、映射库的构成方法及图形与地理位置间的映射关系和基本图形的提取方法。这种数据库具有查询速度快,查询准确性高、图象存储容量压缩比率大等特点,并能将1G字节图象用不到3Mbyte的空间存储。     

一种基于SAT的FPGA映射优化算法

为了提高FPGA技术映射算法的质量,提出了一种基于布尔可满足性(SAT)的算法,在实现系统功能的前提下,可以将一个子电路映射到数量最少的查看表中。通过将该算法迭代应用于已经完成映射的电路局部,在许多情况下,可以使用更少的查看表来完成。     

Mapping of user interfaces on electronic appliances

The purpose of this study was to investigate mapping of user interfaces on consumer electronic appliances. A digital clock with five different interface modes was chosen for the experiment. Forty elderly subjects (above 65 years) and 40 middle-aged subjects (45-64 years) participated in the study. Every subject had to complete three different tasks, namely time setting, alarm time setting and date setting. The researchers investigated what problems were encountered when performing these tasks and collected data such as operational time, the number of total inputs, subjective estimation and interview information. The findings of this study indicated that the interface modes had significant effects on operational time, the number of total inputs and subjective estimation. Finally, the study confirms that when the spatial relationship between buttons and display contents are clearly indicated, the operation is easier to complete.