An intelligent service matching method for mechanical equipment condition monitoring using the fibre Bragg grating sensor network

Due to the advantages of being able to function under harsh environmental conditions and serving as a distributed condition information source in a networked monitoring system, the fibre Bragg grating (FBG) sensor network has attracted considerable attention for equipment online condition monitoring. To provide an overall conditional view of the mechanical equipment operation, a networked service-oriented condition monitoring framework based on FBG sensing is proposed, together with an intelligent matching method for supporting monitoring service management. In the novel framework, three classes of progressive service matching approaches, including service-chain knowledge database service matching, multi-objective constrained service matching and workflow-driven human-interactive service matching, are developed and integrated with an enhanced particle swarm optimisation (PSO) algorithm as well as a workflow-driven mechanism. Moreover, the manufacturing domain ontology, FBG sensor network structure and monitoring object are considered to facilitate the automatic matching of condition monitoring services to overcome the limitations of traditional service processing methods. The experimental results demonstrate that FBG monitoring services can be selected intelligently, and the developed condition monitoring system can be re-built rapidly as new equipment joins the framework. The effectiveness of the service matching method is also verified by implementing a prototype system together with its performance analysis.     

产品内分工条件下上海制造业的升级路径：以上海大众为例

文章分析了产品内分工条件下上海制造业在国际制造业分工中的地位,指出上海制造业目前面临的最大问题是欠缺核心技术与自主品牌。因此,通过自主创新提升技术能级以及培育自主品牌是上海制造业升级的必然选择。但创新能力的提升和品牌的培育是个复杂的技术、经济和社会过程。因此,现阶段通过大规模的创建具有自主知识产权的国际品牌来实现上海制造业整体升级尚不现实。上海制造业在参与国际竞争和和产品价值链分工中,还要走一段时期的“国际代工”道路,并通过嵌入全球生产网络来提高技术能力,进而提升在国际分工中的位置。文章以上海大众为例,分析了上海大众升级的约束条件,以及上海大众实现由OEM、ODM向OBM升级的策略选择。     

制造型企业电子商务与供应链物流研究

电子商务的出现引领了世界经济领域的一场变革,而供应链物流作为一种新的物流实现模式,已成为现代物流业发展的一个新趋势。文章在研究电子商务和供应链物流的理论基础上,着重研究了电子商务和供应链物流在制造型企业中的运用与发展,以及在两者互相作用下构建的企业物流系统模式。     

市政工程质量管理探析

在市政工程建设中,加强质量管理尤为重要,文中分析了市政工程建设中质量管理方面存在的问题,提出建立和加强市政工程质量安全控制体系的措施和方法。     

关于外贸代理制若干问题的探讨

由于我国外贸代理制本身所具有的特点,再加上有关法律、法规不完善、不明确等方面的原因,外贸代理实务中产生了诸多法律问题,文中就这方面的问题作出了一些探讨。     

陕西西安装备制造业“军民融合”发展研究

针对西安市装备制造业和国防科技工业现状,指出西安市装备制造业军民科技资源的创新协同优势未能有效发挥。在探讨西安市发展装备制造业"军民融合"现有主要措施的基础上,结合实际调研,分析了西安市装备制造业"军民融合"在扶持政策体系、制度建设、产业园区增长能力、民口企业"民进军"以及产业链配套等方面存在的主要问题。最后从制度完善、发展规划、破解资金瓶颈、完善军民融合的机构设置等方面,提出了西安市发展"军民融合"装备制造业的策略建议。     

论述海南省琼台全面战略合作示范基地的开发建设模式

新形势下,如何开发建设示范基地,走出新路子,办出国际水准、地方特色,使之真正成为琼台交流平台和改革试验田,是需要认真思考和研究的。     

TD—SCDMA通信基站电磁辐射预测系统的研制

本文首先对TD—SCDMA通信基站工程进行分析,并在此基础上阐述如何实现TD—SCDMA通信基站电磁辐射的防护,以此来为今后该方面的研究提供一定的参考依据。     

Dynamic and non-neutral productivity effects of foreign ownership: A nonparametric approach

This paper studies two novel productivity characteristics of foreign acquisition on high-tech manufacturing firms: the dynamic and the non-Hicks-neutral effects. A dynamic productivity effect of foreign ownership arises when adoption of foreign technology and management practices takes time to fully realize. Furthermore, these dynamic adjustments may be capital or labor augmenting as adoption of advanced production technologies tends to have non-neutral productivity implications in developed countries. We propose and implement an econometric framework to estimate both effects using firm-level data from China's manufacturing sector. Our framework extends a nonparametric productivity framework, in which identification is achieved using a firm's first-order conditions and timing assumptions. We find strong evidence of dynamic and non-neutral effects from foreign ownership, with significant differences across investment sources. Investment from OECD sources is found to provide a long-term productivity boost for all but the largest recipients, while that from Hong Kong, Macau, and Taiwan does not raise performance. These findings have implications for China's declining labor share and for the rising domestic value-added content of its high-tech exports.     

If ‘money matters’, what about the monetary base?

Crucial to the debates on monetarism is the money aggregate relevant to its key propositions, in particular those that relate to the determination of nominal national income and inflation. In his influential work on ‘market monetarism’, Scott Sumner has accorded a privileged position to the monetary base in the key monetarist propositions. This article argues that, on the contrary, in a modern economy the role of cash is so small, as well as so clandestine, that the monetary base does not play any direct role in the determination of national income and inflation.