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是網絡管理系統(tǒng)的核心,因此本文提出的klb結構的實現方法對軍事網絡管理開發(fā)平臺的研究具有非常重要的意義;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為實現分布式網絡管理的進一步研究提供了堅實基礎和可靠工具。
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 同時在探討體繪制光學模型的基礎上,研究了體繪制的兩種圖像合成算法,即由前向后算法和由后向前算法,并結合激光共聚焦掃描顯微成像系統(tǒng)序列斷層熒光圖像的特點提出了體緩沖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 通過xml視圖動態(tài)檢索底層rdb的技術建立基于rdb的xml動態(tài)檢索機制;針對現有動態(tài)檢索算法大多依賴靜態(tài)模式映射算法的問題以及基于w3c工作草案xquery的研究尚無實質性進展的現狀,通過提出并建立gvrs(generalvirtualrelationalschemaforxmldocument)模型,作為xml事例文件與rdb之間的橋梁,實現了一種與靜態(tài)模式映射“無關”的xquery到sql的轉換算法,保證動態(tài)檢索對各種靜態(tài)轉換的普遍適應性,實現了通過xml視圖對底層rdb的動態(tài)數據檢索,較好地解決了xml與rdb在動態(tài)檢索層面的數據集成問題,可有效滿足根據用戶需要有選擇動態(tài)檢索系統(tǒng)底層rdb數據的需求。