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151.
由于社会转型、学校教育的缺陷及家庭影响,当代大学生在思想政治、道德素质、心理素质方面出现一些问题.大学生思想道德教育的根本途径在于回归现实生活,即注重联系现实生活教育、培养道德情感、引导思想道德能力的提高. 相似文献
152.
In the nonparametric measurement of allocative efficiency, output prices are fixed. If prices are endogenous, the overall output in the market determines the allocative efficient point. We develop an alternative semi-nonparametric model that allows prices to be endogenously determined. 相似文献
153.
Why might firms be regarded as astutely managed at one point, yet subsequently lose their positions of industry leadership when faced with technological change? We present a model, grounded in a study of the world disk drive industry, that charts the process through which the demands of a firm's customers shape the allocation of resources in technological innovation—a model that links theories of resource dependence and resource allocation. We show that established firms led the industry in developing technologies of every sort—even radical ones—whenever the technologies addressed existing customers' needs. The same firms failed to develop simpler technologies that initially were only useful in emerging markets, because impetus coalesces behind, and resources are allocated to, programs targeting powerful customers. Projects targeted at technologies for which no customers yet exist languish for lack of impetus and resources. Because the rate of technical progress can exceed the performance demanded in a market, technologies which initially can only be used in emerging markets later can invade mainstream ones, carrying entrant firms to victory over established companies. 相似文献
154.
This study addresses the issue of the relative degree of variance in ROA accounted for by industry, corporate, and SBU effects while controlling for the business cycle and the interaction between the business cycle and industry. Two key articles, Schmalensee (1985) and Rumelt (1991), are discussed in detail. Research results on a recent data base (COMPUSTAT), using variance components analysis (VARCOMP) are presented that not only confirm most of the Rumelt (1991) findings, but also suggest the existence of a corporate effect, heretofore undetected. 相似文献
155.
156.
《中华人民共和国公证法》首次以法律的形式将赔偿制度引入我国公证领域,建立中国特色的公证赔偿制度是推动我国公证事业发展的客观要求,需要在公证工作的实践中不断探索完善.文章对我国公证赔偿的法律属性、公证赔偿的构成要件、公证赔偿的方式及公证赔偿的举证责任问题进行了探讨. 相似文献
157.
Metallic structured packings have found increasing use in the cryogenic distillation of air. An experimental program was performed to test the flammability of selected metal packings under simulated high oxygen concentration operating conditions. Aluminum flammability in gaseous oxygen has been shown to be very dependent upon argon dilution, and in the presence of liquid oxygen, strong energy releases have been observed. Brass packing exhibited an unexpectedly high relative flammability whereas copper has been found to be non-flammable in all tested oxygen purities. These findings suggest the use of copper structured packing in higher purity GOX/LOX regions of an air separation distillation column and aluminum structured packing in the remainder of the column. 相似文献
158.
Experience has shown that a Distributed Control System (DCS) can provide enhanced process monitoring and control capabilities, as well as system self-diagnostics, that permit increased safety of process operations. However, this enhanced safety does not come about automatically with the installation of a DCS. The complexity and versatility of the DCS can introduce new failure scenarios leading to process upset and potential relization of process hazards. This paper reviews some novel considerations that should be taken into account when conducting process hazards reviews on facilities controlled by a DCS. 相似文献
159.
An approach to evaluate the acute impacts from simulated accidental releases of chlorine and ammonia
The manner in which specific chemicals are used is studied in order to identify plausible release scenarios and the probability of their occurrence. 相似文献
160.
A novel gelatin system for use in oil spills at sea provides rapid immobilization of liquids upon demand. 相似文献