一种支持SOA系统开发的服务注册库

为了支持SOA系统开发,需要对各种形式的服务进行有效地管理.在前期工作的基础上,提出了一个语义增强服务库,用于基于语义的服务注册、搜索和组装.重点介绍其中的服务注册库部分,包括服务注册库的功能、所用的服务描述规范,并用一个实例说明了服务注册、发布的整个过程.该服务库通过支持多种形式的服务,可以有效地管理企业现有的各种软件资源,并为基于SOA的系统开发提供支持.     

某稀土企业伴生放射性固体废物暂存库下方土壤放射性核素及重金属纵向分布

通过对某稀土冶炼企业自建的两个伴生放射性固体废物暂存库下方0～12 m的土壤进行采样,分析天然放射性核素²³⁸U、²²⁶Ra、²³²Th,以及重金属Cd、Pb、Cr、As、Hg的含量与纵向分布情况,并与地区环境本底值、相关标准对比,采用地累积指数法、内梅罗污染指数法进行评价分析。结果发现,该废物暂存库经长期运行,下方0～12 m土壤的放射性核素污染情况可评价为清洁无污染,重金属可评价为清洁或尚清洁(警戒限),即该底层为花岗岩与水泥混合类型的暂存库,经30年的使用,对伴生放射性固体废物中的天然放射性核素与重金属起到较好的封存作用。     

Parametric Survey for Benefit of Partitioning and Transmutation Technology in Terms of High-level Radioactive Waste Disposal

Benefit of implementing Partitioning and Transmutation (P&T) technology was parametrically surveyed in terms of high-level radioactive waste (HLW) disposal by discussing possible reduction of the geological repository area. First, the amount and characteristics of HLWs caused from UO₂ and MOX spent fuels of light-water reactors (LWR) were evaluated for various reprocessing schemes and cooling periods. The emplacement area in the repository site required for the disposal of these HLWs was then estimated with considering the temperature constrain in the repository. The results showed that, by recycling minor actinides (MA), the emplacement area could be reduced by 17–29% in the case of UO₂-LWR and by 63–85% in the case of MOX-LWR in comparison with the conventional PUREX reprocessing. This significant impact in MOX fuel was caused by the recycle of 241Am which was a long-term heat source. Further 70–80% reduction of the emplacement area in comparison with the MA-recovery case could be expected by partitioning the fission products (FP) into several groups for both fuel types. To achieve this benefit of P&T, however, it is necessary to confirm the engineering feasibility of these unconventional disposal concepts.     

Consequence Analysis of Fluvial Erosion Scenarios for an HLW Repository

In Japan, uplift/erosion scenarios must be analysed even if they occur far in the future, as no assessment cut-off times have yet been defined. For this purpose, the geological record of river terrace formation and their long-term evolution have been studied further, with the aim of constructing a better defined fluvial erosion model than the original, rather simple cyclic fluvial erosion model developed in a previous study. The developed conceptual model, based on a generalization of field observations in relevant settings, allows the consequences of erosion of the repository to be assessed just as before, using comparisons with natural radionuclide fluxes. Results illustrate the effectiveness and robustness of the H12 HLW disposal system and indicate that erosion scenarios are unlikely to be critical for distinguishing between different sites that lie in similar mid-range river settings.     

高放废物地质处置北山预选区芨芨槽岩块地质特征

芨芨槽岩块是高放废物地质处置北山预选区新场地段中有利候选岩块之一.以高精度卫片解译、野外踏勘、地表工程揭露和节理测量为主要手段,对此岩块的岩石、断裂、节理带和节理等地质特征进行了详细调查和研究.芨芨槽岩块的主岩岩石类型单一,为黑云母二长花岗岩;后期有煌斑岩脉和石英脉贯人.断裂以NE向为主,共7条;多数断裂分布于岩块东西两侧边界,而岩块内部只有2条断裂.节理带以NW向为主,长度大于1 km的有8条.据统计,岩块中节理有4个优势组,各优势组的产状和间距分别服从正态和负指数分布,节理平均间距为1.2～1.6 m.断裂对节理的影响范围小于100 m.此项调查和研究为处置库选址、性能评价和设计提供了必要的基础资料.     

Intensional and extensional integration and abstraction of heterogeneous databases

This paper presents two techniques to integrate and abstract database schemes. The techniques assume the existence of a collection of interscheme properties describing semantic relationships holding among input database scheme objects. The former technique uses interscheme properties to produce an integrated scheme encoding a global, unified view of the whole semantics represented within input schemes. The latter one takes a (integrated) scheme as the input and yields in output an abstracted scheme encoding the same semantics as the input scheme, but represented at an higher, application-dependent abstraction level. In addition, the paper illustrates a possible application of these algorithms to the construction of a data repository. Finally, the paper presents the application of proposed techniques to some database schemes of Italian Central Governmental Offices.     

互联网时代的CAD技术

随着网络技术的快速发展和普及，CAD技术的发展和应用也面临着新的机遇和挑战。本立足于如何充分利用网络技术和资源，促进CAD技术的发展和深化应用，重点谈了三个方面：集成化、智能化、协同化。     

一个支持软件过程的CASE系统的设计与实现

本文阐述了一个支持多用户协同式软件工程活动的ＣＡＳＥ系统的设计与实现，提出了一种“组工作模型”及其相关的软件支持设施，包括过程支持设施、角色支持设施以及对象库支持设施等。     

基于本体的网络攻防博弈知识库构建方法研究

针对目前还没有一个较为完善的攻防博弈知识库的情况,对基于本体的博弈知识库的构建方法进行了研究。首先对网络攻防博弈过程中所需要的博弈知识进行分析梳理,描述出知识库的体系结构;然后提出了一种网络攻防博弈知识库的构建框架,并根据此构建框架提出了构建算法;最后通过一个应用示例对算法进行了验证。结果表明构建算法是可用并有效的。     

湖湘文化创意产品设计资源库建构方案研究

目的挖掘、传承、管理湖湘地域文化内容,采集、存储、表现湖湘文化元素。方法根据文化层次分析和联合国教科文组织关于文化遗产的分类对湖湘文化知识体系进行梳理、分类,基于设计和数字化标准,筛选出代表湖湘文化特色的文化单体,并对文化单体信息进行定义。结论数字化建设对保护文化遗产起到了关键性的作用,湖湘文化创意产品设计资源库给设计师提供了设计文化创意产品的灵感来源和素材资源,也给其他地域性文化设计资源库的开发者提供了参考,为振兴国家创意产业作出了一定贡献。