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91.
TCP/IP拥塞控制研究 总被引:1,自引:0,他引:1
张云 《无锡商业职业技术学院学报》2004,4(2):6-8
综述了Internet上TCP/IP拥塞控制研究方面一些最新的工作,分析了拥塞控制的原理、TCP/IP拥塞控制所使用的典型技术,并着重论述了TCP/IP拥塞控制所面临的问题,包括自相似性问题、效率问题、区分服务等问题,并提出进一步研究的方向。 相似文献
92.
关于全面实行政府采购审计的研究 总被引:1,自引:0,他引:1
李燕 《安徽工业大学学报(社会科学版)》2003,20(2):63-65
实行政府采购审计制度存在认识不足,审计不全面,未形成独立审计项目,业务不熟悉等问题,需要完善有关法律、法规和制度,围绕其特点、目标、方式等确定审计对象,以政府采购资金的运动过程为审计主线进行全面审计,规范审计程序.提高审计质量,防范审计风险。 相似文献
93.
Sunil Gupta 《Marketing Letters》1994,5(1):5-17
This paper examines the role of managerial judgment in forming a final forecast, or judging the achievability of a critical level of sales, when multiple forecasts or opinions are available to the decision maker. Several factors that can help improve the quality of human intervention are identified and incorporated in a decision aid. Experimental results show that aided combination can help the decision maker exploit her relevant private information and mitigate the generally observed negative effects of human intervention. Further, the results suggest that emphasizing expected sales, even when the organization is primarily interested in go/no-go decisions, helps improve performance. Several suggestions for future research are presented.
相似文献
94.
B. G. Doornekamp J. N. Streumer 《International Journal of Technology and Design Education》1996,6(1):61-82
In the project Technology in Secondary Education: Problem-solving in Teaching/learning Packages, two experiments regarding a construction problem and an explanation problem were conducted, in which two variants of a teching/learning package (strongly structuredvs. weakly structured) were compared. Only with the strongly structured instructional variant of the package for the explanation problem did the pupils come to a quick solution of the problem. In both experiments, the factors that influenced the problem-solving processes of the pupils were investigated. The results are of importance for curriculum developers and the authors of teaching/learning packages for Technology but further research into the factors influencing the problem solving process of pupils is necessary. 相似文献
95.
In analyzing firm entry and exit across Belgian manufacturing industries, this paper presents evidence that import competition and foreign direct investment discourage entry and stimulate exit of domestic entrepreneurs. These results are in line with theoretical occupational choice models that predict foreign direct investment would crowd out domestic entrepreneurs through their selections in product and labor markets. However, the empirical results also suggest that this crowding out effect may be moderated or even reversed in the long-run due to the long term positive effects of FDI on domestic entrepreneurship as a result of learning, demonstration, networking and linkage effects between foreign and domestic firms. 相似文献
96.
侯荣华 《中央财经大学学报》2002,(10):61-65
固定资产投资的直接目的是增加固定资产 ,应考察投资和增加固定资产的关系 ,其宏观指标为固定资产交付使用率和项目建成投产率 ;固定资产投资的最终目的是促进经济增长 ,增加国民收入 ,应考察投资和增加国民收入的关系 ,其宏观指标为固定资产投资效益系数或投资系数。我国固定资产交付使用率“七五”时期比“六五”末不断提高 ,“八五”较为平稳 ,“九五”开始回升。我国固定资产投资效益系数“六五”以来较为平稳 ,“八五”较高 ,“九五”下滑幅度较大。应采取多种措施 ,不断提高投资效益。 相似文献
97.
Web应用系统的瓶颈,常用 Web应用系统的结构,基于 ASP、 InternetExpress、 MTS/COM+ 整合技术的多层分布式 Web应用系统结构及其 Delphi环境下设计 . 相似文献
98.
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100.
Cynthia J. Campbell Charles E. Wasley 《Review of Quantitative Finance and Accounting》1996,6(3):309-326
We extend prior research on the empirical properties of daily trading volume and methods to detect abnormal trading volume in two ways. We compare the performance of a nonparametric test statistic with the parametric test statistic used in prior research and we study samples of NASDAQ securities as well as samples of NYSE/ASE securities. Prior research has focused exclusively on NYSE securities. We find the nonparametric test statistic is more powerful in detecting abnormal trading volume than the parametric test statistic in both samples of NYSE/ASE and NASDAQ securities. We also document that abnormal trading volume will be detected more often in samples of NYSE/ASE securities compared to NASDAQ securities. 相似文献