Temporal data

The retention time data base was established with Retention Time Locking in gas chromatograph, which made it possible to qualitative analysis for fifty three kinds of volatile organic compounds in water The analysis was quick and simpl

使用保留时间锁定软件 (RTL) ,在气相色谱体系中建立了水质中 5 3种挥发性有机物的保留时间数据库 ,使原始的保留时间成为化合物定性的可靠参数 ,实现了未知样品在色谱仪上的定性 ,提高了分析效率。

This article proposes a valid index——RSB-tree which is the combination structure of R-tree and SB-tree index,the modeling method and sustain algorithm of RSB-tree is researched.

提出基于R-tree(空间数据索引)与SB-tree(时间数据索引)相结合的复合索引结构——RSB-tree,以及RSB-tree索引的构建方法和支撑算法。