抽样定理的System View仿真与实现

通过分析SystemView仿真软件的优势及主要的功能模块库和应用领域,重点通过通信系统中的抽样定理实例介绍了该软件的使用方法及注意事项。最后,总结该软件的教学应用效果及对相关课程教学的借鉴作用,特别适合通信系统的仿真与设计。     

The co-movement of stock markets in East Asia: Did the 1997–1998 Asian financial crisis really strengthen stock market integration?

This paper examines the integration and causality of interdependencies among seven major East Asian stock exchanges before, during, and after the 1997–1998 Asian financial crisis. For this purpose, we use daily stock market data from July 1, 1992 to June 30, 2003 in local currency as well as US dollar terms. The data reveal that the relationships among East Asian stock markets are time varying. While stock market interactions are limited before the Asian financial crisis, we find that Hong Kong and Singapore respond significantly to shocks in most other East Asian markets, including Shanghai and Shenzhen, during this crisis. After the crisis, shocks in Hong Kong and Singapore largely affect other East Asian stock markets, except for those in Mainland China. Finally, considering the role of the USA shows that it strongly influences stock returns in East Asia – except for Mainland China – in all periods, while the reverse does not hold true.     

International Trade and Inter‐Industry Wage Structure in Swedish Manufacturing: Evidence from Matched Employer–Employee Data*

This study examines the inter‐industry wage structure in Swedish manufacturing, using matched employer–employee data for the period 1996 to 2000. First, we used detailed individual and job characteristics to estimate industry‐specific and time‐varying wage premiums. Secondly, we investigated the impact of international trade on wage premiums, controlling for effects of domestic competition and technical progress. Our results suggest that industries that face intensive import competition from low‐income countries have lower wage premiums. Surprisingly, the wage premiums are not related to export intensities. Furthermore, technical progress, measured by investment in R&D activity, appears to enhance inter‐industry wage premiums.     

晋西北风沙源治理区柠条生长规律研究

以晋西北风沙源治理区五寨县柠条解析资料为基础进行回归分析，确定柠条枝径、枝高的最优生长模型，并用实测数据绘制枝径、枝高的连年生长量和平均生长量曲线，进行生长分析，结果表明，晋西北风沙源治理区柠条枝径以韦布尔模型为最优，枝高以坎派兹模型为最优，3a＜树龄＜8a时，柠条的生长速率相对较快；枝径连年生长量和平均生长量均在8a时增加迅速，枝高连年生长量和平均生长量最大值出现时间均较枝径提早，分别出现在4a和6a时。     

论税收的时效性

时效性是税收强制性在时间上的体现，是税法赋予的一种规定性，是国家财政收支及时稳定的重要保证，是依法治税的必然要求，是衡量税务机关征管水平的基本依据。不论是税收法治的严肃性，还是国家各项事业急需财政资金的现实，都迫切需求提高税收的时效性。及时有效地组织好财政收入。     

论新时期腐败的特点及治理对策

众所周知,腐败是一个世界性难题,给政治和社会经济等造成了严重危害.结合实例,剖析了新时期腐败的特点,指出了腐败的危害,并提出了治理当前腐败问题的对策建议.     

石油经济大事

(2009年7月)1日中国石油乍得RONIER油田地面工程和管道建设开工仪式在乍得南部举行。RONIER油田地面工程建设的开工是继2008年10月恩贾梅纳炼油厂     

石油经济大事(2009年6月)

1日中国海洋石油有限公司宣布,其位于渤海海域的自营油田秦皇岛33-1已投产。该油田位于渤海中西部海域,水深约21米,目前有2口井在产,可日产原油2000桶。9日总投资66亿元人民币的江苏如东县洋口港液化天然气（LNG）项目获得商务部批准。该项目由中国石油天然气股份有限公司、江苏省国信资产管理集团有限公司与香港太平洋油气有限公司共同投资成立，三方分别持有55％、10％、35％的股份。     

巧用FANUC宏变量编制实用程序

对于加工工艺相同的一些零件或零件的某一部分，可采用宏变量编程方法编制成固定循环程序，在加工时直接进行调用，可减少编程时的重复工作，实现优化编程，提高编程效率。同时还可减少占用机床系统内存空间，提高数控加工的速度和加工表面质量，方便工人操作。