工业生产中静电的产生及其防护

静电放电对工业生产的不良影响及对IC等微电子组件造成的损害已被人们广泛认识并引起重视。本文就静电产生及防护问题,作一简单介绍。     

关于某电子厂房的静电防护措施

本文在简要介绍静电的产生原理与危害的基础上,结合实际应用经验,说明良好的接地系统、消散通道及环境控制在静电防护系统的作用,并进一步重点阐述某电子厂所建立的门禁与在线监控系统在静电防护中的实际应用价值,这对一般电子工厂在静电防护措施的建议与优化,具有一定的参考与借鉴意义。     

浅谈静电产生的原因及其危害

文章介绍了静电产生的原因及其危害,并分析了静电引发火灾或爆炸的原因,提出了防止静电危害的技术措施。     

电发火弹药储存及作业环境中的静电危害与防护

指出了对电发火弹药形成静电危害的各种形式，提出了具体、有效的防护和消除静电的措施。     

浅谈雷管生产企业对静电危害的防护和管理

静电现象是一种常见的带电现象,在一定条件下,能产生极大的危害。本文将围绕静电的产生、静电的特点、静电造成的危害以及雷管生产企业如何对静电进行科学防护、安全管理做进一步的探讨,并提出了一些解决措施。     

电子产品制造过程中静电的危害与防护

静电的产生对人类的生产和生活会产生很大的危害,尤其是对电子产品的生产企业造成巨大的损失,所以在电子产品的制造过程,采取系统有效地静电防护措施,可减少静电对电子产品的损伤,降低企业成本,提高产品质量。     

试论化学危险品储运的安全管理

化学危险品的种类繁多,性质各异,在储存运输中存在着极大的风险。不同的化学危险品具有不同的性质特点,根据化学危险品的性质特点,不同的化学危险品采用分库、分类、分区的办法储存养护和专车专业运输的办法,可以把危险的风险降低到最低限度。化学危险品储运安全管理的关键是以预防为主,危险品包装、仓储养护、车辆设备、人员资质等必须达到国家规定的标准,只有这样,才能防止重大事故的发生。     

浅析窃电现象及反窃电措施

文章认为电已成为人类社会生存和发展进步所不可缺少的一种重要能源,它不仅给人类带来光明,更重要的是推动了现代化大生产和现代科技的进程。但是随着经济的发展和用电量的增大,尤其伴随着市场经济体系的建立,窃电问题变得越来越突出,国家为此蒙受了巨大的经济损失。窃电问题不仅困扰电力企业的发展,也严重影响了国家的经济建设和社会的稳定。     

An elementary proposition on technical progress and non-traded goods

We explore the effect of technical progress on the endogenously determined range of non-traded goods by using a Ricardian model with continuum of goods. By defining technical progress on the basis of proportional changes in the relative productivity across sectors, we show that the range of non-traded goods decreases if technical progress is unbiased or if it is biased toward the goods that a country has more comparative advantage.     

Buyers' and sellers' cartels on markets with indivisible goods

This paper analyzes the formation of cartels of buyers and sellers in a simple model of trade inspired by Rubinstein and Wolinsky's (1990) bargaining model. When cartels are formed only on one side of the market, there is at most one stable cartel size. When cartels are formed sequentially on the two sides of the market, there is also at most one stable cartel configuration. Under bilateral collusion, buyers and sellers form cartels of equal sizes, and the cartels formed are smaller than under unilateral collusion. Both the buyers' and sellers' cartels choose to exclude only one trader from the market. This result suggests that there are limits to bilateral collusion, and that the threat of collusion on one side of the market does not lead to increased collusion on the other side.     

Centralized and decentralized provision of public goods

We model the trade-off between centralized and decentralized decision making on the provision of local public goods. Decisions are influenced by spillover effects and differences in jurisdictional size. Centralized decisions are made in a legislature of locally elected representatives, and this creates a conflict of interest between citizens in different jurisdictions. The legislature can be self-interested or benevolent and this can result in either efficient, excessive, or misallocative provision of public goods. The form of centralized decision making has a significant influence on the incentives for centralizing decision making.     

Strictly monotonic preferences on continuum of goods commodity spaces

We consider a set K of differentiated commodities. A preference relation on the set of consumption plans is strictly monotonic whenever to consume more of at least one commodity is more preferred. It is an easy task to find examples of strictly monotonic preference relations when K   is finite or countable. However, it is not easy for spaces like ?^∞([0,1])${?}^{\infty }([0\text{,}1])$, the space of bounded functions on the unit interval.     

公路危险品运输的实时监控与调度

通过基于GPS技术的危险品车辆监控与调度系统,南京扬子物流公司能够对运行车辆进行实时监控与高效的动态调度管理,并与中石化GPS管理系统有效对接,不仅提高车辆运行效率、降低交通事故率,还减少了油耗成本。     

Intermediate goods and the spatial integration of land uses

A model with two commodities, one final and one intermediate, is set out in a spatial context. Each commodity requires land in production and must be transported at positive costs between sites. Two solutions are possible: an integrated one in which the final and intermediate goods share the same site and a segregated one in which final and intermediate goods occupy distinct areas. The condition for determining which pattern will be efficient is obtained and the result plus a numerical example are related to observations reported on the history of urban areas. The phenomenon of two distinct equilibria is found in a model which permits another factor to be substituted for land in production.     

Unanticipated shocks and the maintenance and replacement of durable goods

This paper investigates how a durable-goods owner responds to a once-for-all unanticipated shock in a stationary state market. This problem is examined in the context of housing. The circumstances are determined under which a landlord will respond in each of the following five ways: (i) abandon his building immediately; (ii) run down his building optimally and then abandon; (iii) operate his building forever; (iv) demolish his building immediately, and reconstruct a new building on the site; and (v) run down his building, demolish it, and reconstruct a new building on the site. The analogous cases for other durable goods should be obvious.