The translation process from basic and complex asn . l modules into idl that includes default clause, optional clause and asn . l recursive definition is also shown . the implementation of the mib structure presented in the dissertation plays an important role in developing the platform of military network management . besides, the application of corba technology in tmn framework and the corresponding mapping algorithm of management information, provide efficient tools to develop the distributed network management in future 由于mib是网络管理系统的核心,因此本文提出的klb结构的实现方法对军事网络管理开发平台的研究具有非常重要的意义;另外,tmn和corba的集成研究以及二者在管理信息方面的映射算法为实现分布式网络管理的进一步研究提供了坚实基础和可靠工具。
Two image mapping algorithms of the volume rendering, forward mapping and backward mapping are researched on the basis of optical model for volume rendering . combined with the characteristic of a series of section images from laser confocal scanning microscopy, the volume buffer algorithm and maximizing algorithms are proposed in this paper . 4 同时在探讨体绘制光学模型的基础上,研究了体绘制的两种图像合成算法,即由前向后算法和由后向前算法,并结合激光共聚焦扫描显微成像系统序列断层荧光图像的特点提出了体缓冲器算法和最大值算法。
Furthermore, the existing algorithms for dynamic query are generally dependent on the static mapping algorithms . to resolve these two problems, a gvrs ( general virtual relational schema ) model for xml document is put forward as a bridge between xml instance document and factual rdb, and an algorithm which transformes xquery into sql and is independent on the static schema mapping, is realized . based on the above approaches, the dynamic data query on bottom rdb is carried out through xml view and the data integration between rdb and xml is achieved on the dynamic query tier 通过xml视图动态检索底层rdb的技术建立基于rdb的xml动态检索机制;针对现有动态检索算法大多依赖静态模式映射算法的问题以及基于w3c工作草案xquery的研究尚无实质性进展的现状,通过提出并建立gvrs(generalvirtualrelationalschemaforxmldocument)模型,作为xml事例文件与rdb之间的桥梁,实现了一种与静态模式映射“无关”的xquery到sql的转换算法,保证动态检索对各种静态转换的普遍适应性,实现了通过xml视图对底层rdb的动态数据检索,较好地解决了xml与rdb在动态检索层面的数据集成问题,可有效满足根据用户需要有选择动态检索系统底层rdb数据的需求。