异构的

Aiming at solving the problems of heterogeneity among ontologies in semantic Web services, and taking into account the fact that the efficiency of most ontology mapping system is not high and the results of ontology mapping is not accurate enough, this paper proposed efficient ontology mapping method and system framework for semantic Web services, the method adopted machine learning techniques to enhance the degree of automation of ontology mapping, used comprehensive evaluation technology to amend the results of ontology mapping, so as to improved the accuracy of ontology mapping.

芦明， 李冠宇，史一民大连海事大学信息科学技术学院，辽宁大连 116026）本体的异构性阻碍了语义网服务的互操作。从解决语义网服务中本体的异构问题出发，同时考虑到目前的本体映射系统大多效率不高、映射结果不够准确的问题，提出了一种适用于语义网服务的本体映射方法及系统框架。该方法利用机器学习技术来提高本体映射的自动化程度，利用综合评判技术修正映射结果，以提高本体映射的准确率。

The data transformation platform is designed in accordance with modularization, which masks the access from upper application by data wrapping module and submits DataSet objects to upper application. DataSet exchange module finishes heterogeneous data exchange by using XML capsulation of DataSet. For the synchronization process of heterogeneous data, it uses table trigger and Updates Information Table to capture change from source database table. The Update Information Table keeps the DML statements operated on tables which need to be synchronized. In the course of synchronization, synchronization module extracts DML operation field from Regenerate Information Table DataSet. At last, it updates the table fields of destination database by using command object.

数据转换平台的实现采用模块化设计，通过数据包装模块屏蔽上层应用对数据库的访问和将包装好的数据集对象提交给上层应用来实现，数据转换模块利用DataSet对XML的封装完成底层异构数据的交换；在异构数据同步的处理上，采用触发器结合更新信息表的方式获取源数据库上表内容的变化，更新信息表保存作用在同步表上的DML语句，然后在同步的过程中利用数据转换平台的同步模块对更新信息数据集中的DML操作字段进行数据抽取，最后通过命令对象将变化更新到目的数据库的表字段中。

With the development of multicast-based multimedia applications and wireless network in recent years , the dynamic and heterogenetic of the network takes more and more important roles in those applications . Layered multicast is recognized as the best technique for solving dynamics and heterogeneousness of the network in multicast environment .

随着无线网络和多媒体组播应用在近几年的快速发展，网络的异构性，动态性等问题也更为突出，分层组播技术的提出为这些问题的解决提供了新的契机，它是目前公认的在组播环境中解决网络异构性以及网络动态性的较好的解决方案。

The main objective of this project is to research and develop a novel and high efficient video codec framework based on wavelet techniques, especially to address the heterogeneousness of video networks, the fluctuation of transmission bandwidth and the diversity of video-stream receivers. The system will have some basic characteristics of the next video coding standard, such as high compression efficiency, high scalability and high error resiliency. This project will provide a software prototype of wavelet video codec with full scalability, construct a verification platform for wavelet video on demand service, and furthermore, design some VLSI IP cores of the key module in the codec system

本项目研究的主要目的就是着眼于下一代视频编解码标准的基本特征（高效压缩，高可伸缩，高容错），以小波技术为核心构建新型高效的视频编解码系统；特别针对当前视频传输网络的异构性，网络带宽的波动性以及用户视频接收终端的多样性，实现一个码流高度可伸缩同时兼顾压缩效率的小波视频编解码软件原型，并且构建基于异构IP网络的小波视频服务的技术验证平台；进一步还将基于VLSI技术，对小波视频编解码系统的关键模块进行IP核设计

The architecture of Client/Server based on transaction middleware is a typical kind of the distributed On-line Transaction Processing, becoming a major platform of enterprise information system, which offers communication of striding platform, loading balance, fault-tolerant and resumable ability, and strengthens a new generation middleware in common with 3-layer architecture provided with the strong security, excellent management and high availability in common. Numerous distributed system, different database and different network environment are closely linked up among an enterprise, offering the function of mutual operation on application layer.

基于交易中间件的C／S结构是一种典型的分布式事务处理系统，成为构筑企业信息系统的主流平台，它提供了强大的跨平台通讯、负载平衡、容错及其故障恢复能力，并在这个基础上进一步强化了安全性、可管理性和高可用性的新一代通用型三层结构平台的中间件，把企业中众多的异构系统、异构数据库、不同网络环境紧密的联系起来，并在应用层提供了互操作性的功能。

Architecture of the data integration system for the distributed and heterogonous data resources was proposed based on the grid, through which the application can find and bind the data resource at the moment of need. And in the processing of choosing he data resources, the model based on Qos was adopted, which can avoid the fail of data resources effectively.

在利用现有的访问网格中异构数据源方法的基础上，提出了基于网格服务的异构数据源集成体系结构，可以在应用过程中动态绑定数据源；同时在选择数据服务的时候采用基于Qos的选择模型，可以有效的避免服务失效的现象。

The relative stabilities and probable proton transfer in isolated and monohydrated 2-hydroxyimidazole molecules have been studied in gas phase using ab initio (MP2/6-31＋G *) method.

采用从头算方法在MP2/6-31＋G*水平上研究了2-羟基咪唑分子在孤立分子和一水合物的异构体的相对稳定性和可能的质子迁移反应，分析了一个水分子的参与对2-羟基咪唑分子异构体的相对稳定性和质子迁移速率的影响，采用Monte Carlo模拟方法研究了反应体系在水溶液中反应的溶剂化效应。

Nevertheless, no homologues of typical molecular chaperones have so far been found in periplasm, and the recently reported chaperone activities of periplasmic protein disulfide isomerase and peptidyl pro-lyl isomerase seem to be too weak to satisfy such assumed needs.

虽然膜间质中的蛋白二硫键异构酶和脯氨酸顺反异构酶最近被报导具有分子伴侣活性，但是这种活性的检测使用的不是天然的膜间质蛋白，而且没有捕获到复合物的形成，因此看起来仍不能够满足前面分析的对膜间质蛋白保护的需求。

Respectively, glutamic acid derivatized β-CD has been synthesized with epoxy chloropropane as the intermediate, a water-insoluble yellow liquid was got after the acetylating of the by using acetic anhydride, which was used as a novel gas chromatographic CSP; A water-soluble β-CD polymer cross-linked with epoxy chloropropane has been synthesized, and the derivatives of β-CD polymer were synthesized by its alkylating and acetylating. The different β-CD derivatives were coated on silica capillary columns by dynamic method, the chromatographic properties and retention behaviors of the fused silica capillary columns were studied, the results showed that the β-CD derivatives had good stereoselectivity and separation results to some compounds, especially to various positional isomers and enantiomers.

本文还分别以环氧氯丙烷为中间体，合成了七{2，6-二-O-[3-(1，3-二羟基丙氨酸)]}-β-环糊精，再用醋酸酐将其乙酰化，得到了一种淡黄色粘稠液体，合成了一种新型的环糊精衍生物；以环氧氯丙烷作交联剂合成了一种水溶性的β-环糊精聚合物，再将其烷基化和酰基化，合成了β-环糊精聚合物的不同衍生物，用动态法将不同类型的β-环糊精衍生物涂渍在石英毛细管柱上，通过对所制备柱柱性能的测试和对一系列化合物的分离和保留行为的研究，结果表明所合成的β-环糊精衍生物对各类化合物，特别是对位置异构体和对映异构体具有较好的分离效果，显示了很强的立体选择性。

There are some isomeric compounds of hydroxypyridinone. The compounds of 2-hydroxy-6-pyridinone have been used to dyestuff and pesticide widely. The compounds of 3-hydroxy-2-pyridinone and 3-hydroxy-4-pyridinone are paid attention to, because they are very useful heavy metal chelations. Especially, they are wonderful candidate medicament for the toxicosis of depleted uranium, so they can settle the DU jeopardize to the people.

羟基吡啶酮化合物有不同的同分异构体，2-羟基-6-吡啶酮已被广泛用于染料和农药行业，而3-羟基-2-吡啶酮和3-羟基-4-吡啶酮也引起了人们的重视，因为这两种异构体的化合物是非常理想的重金属络合剂，尤其重要的是，它可作为解决贫铀中毒的候选药物，有望解决战争中由于贫铀中毒带来的危害。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。