scientific dissertation

This dissertation researches on new methods of image features extraction, image retrieval and feature vectors indexing under scientific database environment;

本文的研究目标一方面是提高基于内容图像检索系统的精度，研究的重点是适合于科学数据库图像检索的图像特征提取方法，检索方法、及索引方法；

This dissertation comes from a scientific research project of Nantong University, Jiangsu Province.

本课题来源于江苏省南通大学计算机学院的一个科研项目。

Based on Scientific Database and Scientific Data Grid project, This dissertation research the problem of information, resource and service discovery in large scale distributed system which spanning multiple administrative domains.

以科学数据库和科学数据网格为背景，本论文研究跨管理域、大规模分布系统中产生的信息、资源和服务发现问题。

Scientific evaluation of the innovations of doctor's academic dissertation has very important realistic meanings.

科学评价博士生学位论文的创新具有非常重要的现实意义.

This dissertation provided a scientific basis so as to further clarify the material basis of the antitumor effect of Centipeda minima. It also enri ched Centipeda minima active ingredients' research content.

从而为进一步研究鹅不食草抗肿瘤作用的物质基础提供了科学依据，同时也丰富了鹅不食草活性成分的研究内容。