查询词典 database access

Through the comparative analysis of irrigation management information systems based on relation database technologies and GIS technologies, we found that the latter has the merits such as integration of graphic data and attribution data, visualization of data and display of further characters using attribution data. The traditional relation-based database, which is good at storing and managing attribution data, is not able to describe and manage those data.

1通过对基于关系型数据库技术支持的灌区管理信息系统与基于GIS技术支持的灌区管理信息系统的比较与分析发现：基于GIS技术支持的灌区管理信息系统具有图形数据属性数据一体化、不仅可以用图形把数据直观地表现，还可以用属性数据表述其更加详尽的特征等优点，而传统的以存储、管理属性数据见长的关系型数据库用来描述和管理这些数据难免感到力不从心。

City; city thematic mapping; the urban cadastral database technology; to build three-dimensional model of the city; map database technology research and the integration with the graphic and so on .

本系列研究方向主要集中在：城市发展的时空扩展模型建立和模拟；网络城市地理信息系统研究；城市多尺度空间信息集成与融合；城市水资源规划信息系统；城市专题制图；城市地籍数据库技术；城市的三维模型构建；地图数据库技术与图文一体化研究等。

Database design is the application of the most important part of this paper, database design classic design guidelines.

数据库的设计就是应用中最重要的一部分，本文提出数据库设计的经典设计指南。

Then behind that credit card, if you want to get into secure locations, be it a nuclear power plant or an airport or busy commercial airport, you have to put your ID card in a reader, put your thumbprint or handprint on a reader and we verify you are who you say you are by having this national database, national security database.

这样，用这张信用卡，如果你想进入安全的地方，比如核能厂、机场或繁忙的商务机场，你得将卡插入检验机，将你的拇指指纹或手印输入检验机，通过我们的全国数据库--全国安全数据库，我们就可以检验你的身份。

This thesis is an introduction of the database system, which combines the fuze design and simulation, and it is an introduction of the technology for preconditioning the data in the process of the simulation. It also introduces the design of fuze system, the process of simulation and the application of the database for fuze design and simulation, with the example of the horologe of some fuze system.

本论文介绍了为引信设计、仿真集成系统所开发的数据库系统及仿真数据前处理技术，并以引信系统钟表机构为实例，介绍了引信系统设计、仿真过程及引信系统数据库的应用。

The technology, illation rule and parameter of neural network are supposed to be held in database and make a delicate database system.

知识和推理规则、神经网络参数都必须由数据库保存，使数据库系统实现知识／数据的一体化存储与管理。

Then, the implement technique in the database table design and image data explanation of a city landscape retrieval system is illustrated, and the authors also verified that using extended relational database management system to store and manage image data is effective and practicable.

现在面向对象数据库技术的应用还不够成熟，而且用户往往更喜欢在不改变原有数据库系统的基础上增加对多媒体文档管理的要求，故用扩展现存的关系数据库管理系统来支持类似于二进制对象的多媒

Sequential patterns base is applied to the algorithm, which stores all items, maximum frequent patterns and corresponding support counts in original database. Instead of remining impertinently, ISPBP updates the frequent items and patterns found previously by implicit merging and discovers new patterns by projection database.

算法引入序列数据库结构来存储从原始数据库中挖掘出的所有项、最大频繁模式以及它们的支持数，采用间接拼接方法，只需处理增量数据库，避免了对更新后数据库的重新计算。

With the continual development of computer network and database technology, a variety of database management system has been presented in succession.

摘要随着计算机网络和数据库技术的不断发展，陆续出现了各式各样的数据库管理系统。

The method obtained multiple training samples from a single face image by multi channel sampling before two-dimensional independent component analysis transformation. Experimental results on the ORL face database and YALE face database show that the proposed method is feasible and has higher recognition performance compared with GREY, PCA, ICA, 2DICA, projection combined PCA, FLDA, sampled FLDA and other algorithms where only one sample image per person is available for training.

该方法是在2DICA运算之前，首先对单训练样本进行采样，通过多频率采样可以获取多个不同频率下的采样样本，然后对采样样本进行2DICA特征提取，最后采用神经网络分类识别，对人脸库ORL和YEL作了相关实验，将该方法与GREY、PCA、ICA、2DICA、PC PCA、FLDA、Sampled FLDA等传统方法作了比较，最终证明了该方法可以有效地解决单训练样本人脸识别的问题。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。