CORBA分布构件技术的研究与实现*

讨论对分布构件模型的设计和实现内容。它包括分布构件系统的体系结构设计,符合CCM规范的构件、构件容器及构件服务器的系统实现,构件开发工具与构件运行平台的设计与实现,以及相关的构件系统管理技术等内容。     

Survey on mechatronic engineering: A focus on design methods and product models

According to the principles of concurrent engineering and integrated design, engineers intend to develop a mechatronic system with a high level integration (functional and physical integrations) based on a well-organised design method. As a result, two main categories of issues have been pointed out: the process-based problems and the design data-related problems. Several approaches to overcome these issues have been put forward. To solve process-based problems, a dynamic perspective is generally used to present how collaboration can be improved during the mechatronic design. For design data-related problems, solutions generally come from product models and how to structure and store the data thanks to the functionality of data and documents management of Product Lifecycle Management systems. To be able to assess design methods and product models, some criteria are proposed in the paper and used to evaluate their added value on integrated design of mechatronic system. After this assessment, main outcomes which focus on the combination of design method and product model for improving the design of mechatronic system are finally discussed.     

一个改进的SOA服务生命周期模型

为了更好地管理高校数据共享平台中众多的SOA数据服务,提出一种改进的SOA服务生命周期模型。首先介绍SOA治理的相关概念和内容,然后介绍改进后的服务生命周期的整体模型图,最后重点分析SOA服务处于服务弃用期的发展流程,并给出服务弃用期的详细流程图。     

Effects of globalisation on carbon footprints of products

Outsourcing of production from the industrialised countries to the newly industrialised economies holds the potential to increase wealth in both places, but what are the environmental costs of the globalised manufacturing systems? This paper looks into the changes in carbon footprint of manufactured products when production is moved from United Kingdom or Denmark to China and uses environmental input-output analysis to calculate the carbon footprint in the bilateral trade between these countries. The results show that differences between the European and Chinese production systems can lead to substantial increases in the carbon footprint of the traded products, even without including the CO₂ emissions from the associated transportation.     

Product Redesign Using Value-Oriented Life Cycle Costing

A new redesign approach has been developed considering the perspective of a designer who wants to improve product performance over the whole life-cycle while simultaneously optimising costs. Product components can be identified which incur high costs compared to their functional value. In order to identify the optimisation potential, the methods of Value Analysis, Quality Function Deployment and Life Cycle Costing have been matched to each other and integrated into a comprehensive concept. Based on a case study of vehicles, this paper explains the theoretical approach and analyses for designers to optimise costs and conduct product redesign by using Value-Oriented Life Cycle Costing.     

苏州城市旅游地生命周期的系统动态研究

旅游设施的投资商按历史的增长趋势来推测预期的游客增长趋势,往往会导致投资的过大和设施容量过剩。苏州作为旅游目的地,可以从各细分市场主要产品的发展特点看出不同细分市场的生命周期特点。在对苏州城市旅游地生命周期进行调控的时候,主要是以抓住调控远程观光市场的发展为重点。     

面向建筑全生命期的集成BIM建模技术研究

建筑信息模型技术的快速发展和应用,为解决建筑生命期各阶段的信息“断层”问题提供了有效的途径和方法。但目前BIM应用主要通过文件进行数据交换和管理,无法形成完整的建筑信息模型,难以实现BIM的全部价值。本文针对完整BIM的创建,提出了面向建筑全生命期的集成BIM构建框架,通过研究集成BIM基本结构、建模流程、应用架构以及建模关键技术,开发了BIM数据集成与服务平台(BIM Data Integration and Server Platform,BIMDISP)的原型系统,并通过实际工程的应用,验证了BIMDISP的可行性和适用性,为面向全生命期的BIM创建、管理与应用探索了新的方法和技术。     

Evaluation of scenario-based modularization for lifecycle design

Although modular design is a key technique for lifecycle design, effectiveness of modularity on environmental consciousness is not clear. This paper proposes an evaluation method of modular product from the viewpoint of resource efficiency. First, a product is modularized by applying our modularization method based on its lifecycle scenario. Second, the modular structure is evaluated by assuming that each module goes through preferable lifecycle paths (e.g., upgrading, reuse, and closed-loop recycling) designated by the scenario but unmodularized components go through unpreferable paths. This paper also illustrates a case study in order to discuss effectiveness of the proposed method.     

A generic model of Exergy Assessment for the Environmental Impact of Building Lifecycle

A generic model of Exergy Assessment is proposed for the Environmental Impact of the Building Lifecycle, with a special focus on the natural environment. Three environmental impacts: energy consumption, resource consumption and pollutant discharge have been analyzed with reference to energy-embodied exergy, resource chemical exergy and abatement exergy, respectively. The generic model of Exergy Assessment of the Environmental Impact of the Building Lifecycle thus formulated contains two sub-models, one from the aspect of building energy utilization and the other from building materials use. Combined with theories by ecologists such as Odum, the paper evaluates a building's environmental sustainability through its exergy footprint and environmental impacts. A case study from Chongqing, China illustrates the application of this method. From the case study, it was found that energy consumption constitutes 70-80% of the total environmental impact during a 50-year building lifecycle, in which the operation phase accounts for 80% of the total environmental impact, the building material production phase 15% and 5% for the other phases.