Correlation and Arithmetic of Operational Risk Measurement Basing on Loss Distribution Approach

Based on the principles of operational risk measurement provided by Basel II,the paper discusses the problem of operational risk correlations among different business lines / risk types.The correlation coefficients between the aggregate losses among different business lines / risk types are calculated.Copula arithmetic is put forward to compute correlation coefficients matrix of aggregate losses.Besides,the result is used to calculate the capital requirement of operational risk.     

Revelation Game of the Private Information Under Asymmetric Information

Because of the existence of the private information, the informed trader can make excess payoffs by using the information advantages. And also the informed trader can choose the trade strategies to attain the up most excess payoffs. However, he may lose his information advantages. This paper analyzes the conditions when the informed trader can make use of the private information and its optimal times underlying the framework of the strategic market game.     

Review on the measurement theories of enterprise knowledge management during the past three years in China

The implement of enterprise knowledge management gives rise to extensive research on its measurement. Based on the existing measurement theories and evaluation index systems of enterprise knowledge management during the past three years in China, this paper analyzes the problems in measuring target and designing the evaluation index system in the existing research findings, and explains detailedly why measurement target of enterprise knowledge management should be "level evaluation" instead of "performance evaluation", and definitely points out the meanings of enterprise knowledge management level and significance of its evaluation. This paper also indicates that the design of the evaluation index system should be complete, reasonable, proper and operable.     

Approach to Effective Control on the Project Investment

In this paper, in allusion to the three kinds of serious overvaluation (the budgetary estimate of project construction exceeds the rough estimate, the budget exceeds the budgetary estimate and the final accounts exceed the budget) causing uncontrollable project investment often appeared in domestic project construction,the main causes for that are analyzed. That is, the frequent project change and the malpractice of the cost managing system. In this paper, according to some real projects,the kinds and causes of project change are clarified and the malpractice of the cost managing system is analyzed. The effective approaches of reducing the project change, especially the united surveying and improving the cost managing system in order to make the effective control of the project investment are realized.     

Computer Simulation for Analysing the Melting Action of Mould Powders During Continuous Casting

When analysing the performance of casting powders in a specific casting machine, the thickness of liquid slag is a very important parameter. If the liquid slag thickness is not kept above a certain minimum value during the continuous casting operation,the surface and internal quality of the cast products will be jeopardised because lubrication between the strand and the mould is impaired . It is necessary, therefore , to choose the appropriate type of mould powder .In the industrial experiments, it is very difficult and expensive to study this sensitivity by introducing controlled variation in one parameter while keeping all the other constant. Numerical and computer simulation methods are used in the study .They can predict the liquid slag thickness developed above the liquid steel and distribution of the temperature. The sensitivity of the liquid slag thickness to variations can be determined in the material properties of the mould powders.     

黔西县农村水电发展存在的问题和对策

建国以来,黔西县小水电建设在省、地主管部门的关心支持和当地党委、政府的正确领导下,经过多年努力取得了一定成绩。但近年来由于种种原因,小水电建设未能继续向前发展,致使全县水能开发利用率极为低下。当前,农村小水电正面临着前所未有的大好发展机遇,分析全县农村小水电建设管理工作中存在的问题及其原因,研究相应的对策,对农村小水电的发展具有重要意义。     

竖井贯流泵能量特性试验研究

结合江苏某竖井贯流式泵站，对两种不同转轮在相同进、出水流道情况下进行了能量特性试验研究．试验研究表明，竖井贯流式水泵在超低扬程(1—2m)的调水工程中具有很好的水力性能，其模型泵装置的最高效率达69％左右，该项试验研究为今后竖井贯流泵的进一步开发研究获得了良好的开端．     

软硬物质分离技术及其关键设备的研究

根据农副产品加工技术的现状以及现有典型设备的适用范围和特点,介绍了农副产品软硬物质分离机的结构和工作原理.该机解决了现有同类设备加工品种单一的问题,可以用在农副产品、水产品加工领域,具有分离效果好、含杂质率低、产品产出率高和结构独特等特点.     

播种检测技术的研究进展与趋势

播种作业过程中,一旦出现播种异常现象应能及时报警,并检测出故障的性质和位置,以便机手排除故障,提高播种机的播种质量。要实现这一目的,就必须对播种性能施全程监控。为此,介绍了播种检测技术发展概况,指出了提高精密播种机田间播种质量的关键问题,分析了播种检测技术的发展趋势。