容错技术在控制系统软件中的应用

针对控制系统对软件的可靠性的要求,论述了在控制软件设计中几种常用的容错方法     

水环境监测机构质量体系内部审核初探

质量体系建立并运行以后,内部质量审核是保证质量管理体系持续有效运行的重要环节。分析当前水环境监测机构质量体系内部审核中存在的问题,探讨质量体系内部审核的对策和建议,实现有效内审,确保质量体系得到不断改进和完善。     

低聚合度聚醋酸乙烯合成与反应液流变特性

以甲醇为溶剂,偶氮二异丁腈为引发剂,四氯化碳为链转移剂,制备不同浓度、不同聚合度的低聚合度的聚醋酸乙烯（PVAc）反应液。用流变仪测定不同温度下反应液的黏度,研究了反应液黏度随温度、PVAc质量分数和聚合度的变化规律。结果发现,反应液黏度与温度的关系符合Arrhenius方程,反应液黏度的对数与PVAc质量分数的对数成正比,与聚合度的关系符合Mark-houwink方程,并由此得到反应温度下反应液黏度与PVAc质量分数和聚合度的关系式。     

精密零件氢气保护扩散钎接焊工艺研究

本文阐述的是,铜及其合金精密零件氢气保护扩散钎接焊工艺问题。这是一种界于TLP扩散焊和钎焊工艺之间的一种新型先进工艺,兼有两者之长。文中对扩散元素,共晶相系的选取、筛选和扩散——共晶反应过程机理分析作了重点论述,并对其接头组织,性能和焊接质量及本工艺的应用情况作了简要介绍。     

基于价值转移的企业战略创新

传统的战略思路主要从企业自身的资源和能力出发,却忽略了价值转移现象,导致很多企业乃至某个行业的衰败。企业要获得持续竞争优势,就必须通过识别顾客需求偏好的变化,把握不同层面的价值转移趋势和规律,形成由外而内的战略思维模式。因此,企业要能对价值转移作出预判,并进行有针对性的战略设计。     

中国石油集团着力建设技术创新体系

中国石油集团在技术创新体系建设过程中,坚持科学发展观,紧紧围绕集团公司建设具有国际竞争力跨国集团的战略目标开展工作,牢固树立科学技术是第一生产力的思想,依靠科技进步促进集团公司发展.中国石油集团在实践中不断通过体制、机制、制度、管理创新以及其他各方面的创新活动,促进科技创新、产品创新.通过加强企业特色技术布局、技术商品化、基础平台建设、知识产权保护、完善研发人员激励机制等,努力把科研成果迅速转化为现实的生产力,不断提高集团公司的核心竞争力和创新能力.     

Strategic policies and growth: an applied model of R&D-driven endogenous growth

We introduce and explore a general equilibrium model with R&D-driven endogenous growth, whose antecedents are the models of Romer (1990) [Romer, P.M., 1990. Endogenous technological change. Journal of Political Economy, 98, S71-102] and Grossman and Helpman (1991) [Grossman, G.M., Helpman E., 1991. Innovation and Growth in the Global Economy, The MIT Press, Cambridge]. Utilizing evidence from recent econometric studies on sources of growth, the model also accounts explicitly for cross-border technological spillovers. The model is specified and calibrated to data from Japan, and is solved to obtain both the transitional and the steady-state equilibria. We explore the effects of selective trade and R&D promotion policies on long-run growth and social welfare. The model results suggest that while a strategic trade policy has little effect on re-allocating resources into domestic R&D activities, it can significantly affect the cross-border spillovers of technological knowledge, which, in turn, stimulates growth. We find that trade liberalization may cause the growth rate to fall and lead to a loss of social welfare in the long-run, although it improves welfare in the short-run. R&D promotion policies stimulate growth by inducing private agents to allocate more resources to domestic R&D, as well as to take greater advantage of global R&D spillovers. Here, we find significantly high growth effects together with sizable gains in social welfare at low incidence to tax payers.     

均衡范式:主流经济学的半机制

主流经济学的理论危机在于其均衡范式的危机,而均衡范式又是其“半机制”——片面强调经济中的负反馈而忽略正反馈机制——的必然结果,经济学的进一步发展需要重视正反馈的作用,并赋予正、负反馈以同等的重要性从而构建一个更一般化的理论,在这个理论中,目前的主流经济学将成为一个特例。     

浅析邮政企业如何提高执行力

邮政企业为深入参与激烈的市场竞争,必须提高企业执行力,文章从优化经营管理流程、完善井严格执行各项制度、提升企业整体执行技能和员工的工作意愿等方面进行了探讨。     

Market segmentation and supply-chain predictability: evidence from China

We determine the industry-level supply-chain predictability in the Chinese stock market. Evidence is provided that a limited information model is gradually adaptive to the Chinese stock market in recent years, while several traditional measures of informed trading perform differently in the previous period. An innovative indicator of the mobile ratio volatility is also proposed here, which relates the increasing mobile trading behavior to this cross-sectional predictability. Furthermore, we explain the asymmetry of customer and supplier momentum in this market.