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- Keywords temporal database;spatio-temporal expansion;relational algebra;predicates;spatial moving objects;spatio-temporal data model;spatio-temporal data visualization; 时态数据库;时空扩展;关系代数;谓词;空间运动对象;时空数据模型;时空数据可视化;
- As a front-end of commercial DBMS, TimeDB, which is a successful prototype of temporal database management system, basically realizes the managements of temporal data. 作为商业DBMS的前端构件,TimeDB基本实现了时态数据管理功能,是比较成功的时态数据库管理原型系统。
- The paper briefly introduce the production, development and the application prospect of TGIS, elaborates the concept of temporal database and educe the bitemporal theory. 本文简要介绍了时态GIS的产生、发展及应用前景,阐述了时态数据库的概念,引入了双时态理论。
- SAILII is a spatio-temporal DBMS and preferably implements the theory, technology and mechanism of integration of temporal database and spatial database. SAILII原型系统作为一个时空数据库管理系统,较好地集成了时态数据库和空间数据库的理论、技术和机制。
- Keywords Temporal bone;Ossifying fibroma; 颞骨;骨化纤维瘤;
- Keywords temporal bone;sigmoid sinus;microanatomy; 颞骨;乙状窦;显微解剖;
- A crucial problem that needs to be solved for normalization of temporal databases is to compute the finite closure of attributes for TFDs. 时态模式规范化所要解决的一个关键问题是求解时态函数依赖的有限属性闭包问题.
- In this paper, problems of handling time imprecise in temporal databases are discussed and the representations of imprecise time intervals are presented. 讨论了时态数据库处理不明确时间存在的一些问题,并给出了描述不明确时间间隔的方法。
- In this paper,the question of event temporality were discussed in active temporal database under the presupposition of temporal consistency. Then temporal relation of composite events and Allen relation between arbitrary two events were dealed with too. 在事件时态一致性的前提下详细讨论了主动时态数据库中事件的时态问题;给出了复合时态事件的时态关系以及任意两个事件之间的allen关系.
- Keywords temporal bone;facial nerve;sectional anatomy;CT;collodion; 颞骨;面神经;断层解剖;CT;火棉胶;
- Keywords temporal arteritis;nervous system;signs and symptoms; 颞动脉炎;神经系统;体征和症状;
- Keywords temporal styloid process;belemnoid syndrome; 颞骨茎突;茎突综合征;
- Keywords Temporal bone;Celloidin;Section;In situ Hybridization; 颞骨;火棉胶;切片;原位杂交;
- Keywords Temporal flap;Orbicularis oculi muscle;Ectropion; 聂部皮瓣;眼轮匝肌;睑外翻;
- STUDY ON NORMALIZATION OF TEMPORAL DATABASE WITH MULTIPLE TIME GRANULARITIES 具有多时间粒度的时态数据库规范化问题研究
- Keywords: native XML database, data structure. 关键词:原生型XML资料库、资料结构。
- Keywords temporal bone;posterior tympanum;anatomy;cross-section;tomography; 颞骨;后鼓室;解剖学;横断面;体层摄影术;
- Keywords temporal bone;vestibular aqueduct;CT;sectional anatomy;anatomy; 关键词颞骨;前庭导水管;CT;断面解剖;解剖;
- Research on Techniques of Temporal Databases Based on CPR 基于电子病历的时态数据库技术的研究