不同配筋率的钢筋混凝土阻尼性能的实验研究

混凝土的阻尼功能对于提高结构稳定性、安全性和耐久性以及防震减灾等具有重要意义。本文通过试验模态分析法对不同配筋率的钢筋混凝土梁在其各阶固有频率下的阻尼性能进行了研究,结果表明随着配筋率的提高,钢筋混凝土构件的阻尼比是不断减小的。研究构件在自由振动下动态特性对于混凝土结构抗震设计有参考价值。     

不同国籍航班对首都国际机场空气质量影响的研究

[目的]研究不同国籍航班旅客对首都国际机场空气质量的影响,为机场的空气质量监测工作提供科学依据。[方法]采用自然沉降法对2个国际航班所使用的廊桥和行李提取区旅客到达后空气中细菌总数、霉菌总数进行监测,并应用t检验进行比较;挑取可疑菌落培养、鉴定,比较2个国际航班细菌微生物的差异。[结果]2个国际航班使用的廊桥和行李提取区在旅客入境后,细菌总数、霉菌总数结果无显著性差异,但检出的细菌种类有所不同。[结论]首都国际机场不同国籍航班入境旅客给环境带来不同影响,口岸卫生部门应对不同国籍航班的空气质量给予关注,更好地控制疫病疫情的传入。     

探月工程地面应用系统软件项目需求管理研究

需求管理在现代软件项目中起着重要作用,需求管理的混乱将直接导致项目预算超支或项目进度落后。从某种意义上讲,需求管理的有效性决定了软件项目的成功与否。基于探月工程地面应用系统软件项目开发中的需求开发和管理活动,阐述与总结了现代软件项目需求开发的方法与过程,以及需求管理的流程与控制。     

煤炭企业法律风险防范措施研究

法律风险是煤炭企业在进行市场经济活动中遇到的主要风险之一,正确面对并降低法律风险带来的损害是煤炭企业面临的重要课题。根据煤炭企业生产和经营管理特点,对法律风险进行必要的分析,并在构建煤炭企业法律风险防范的过程中,提出了完善制度建设、强化合同管理制度等对策,为煤炭企业正常的生产和经营活动提供有力的保障。     

基于会计岗位工作过程的体验式教学模式的设计与实践

针对高职院校学生的特点与会计专业学生基础差别大的实际,分析高职院校会计教学中存在的问题,结合自身的教学体会提出基于会计岗位工作过程的体验式教学模式的改进措施。     

An Unusual Decade for China's Certification Cause

On August 29, 2001, the Cer-tification and Accreditation Administration of the People's Republic of China (CNCA) was founded, which signifies the quality of Chinese products, and the certification and accreditation in China having entered into a new phase.On the inaugural meet-ing, the State Councilor Wu Yi said in her speech, " China is going to join WTO.As a member of WTO, China will abide by the rules of WTO.     

New roles of NPOS and partnership with government and/or business in China

In order to cater to the globalization trend, a general governmental institution reform has taken place in the world, and the aim of the reform is to limit governmental power and promote governmental efficiency. The force of the reform comes from both the domestic press and oversea press. On a national level, the request for legality of governmental power and controllability of governmental decision‐making is becoming more urgent on a daily basis. On an international level, globalization has urged cooperation and rapid response from every countries in the world. Most countries focus on limiting governmental power and power dispersion.     

澳柯玛鲜动09新品秀

冰箱,是我们居家生活里的大件.在从前的概念中,冰箱只要能冰冻食物就可以了,其他的都是次要.可在手机都开始出现量身订做的现在,作为厨房大件的冰箱又怎能千篇一律呢?     

Penetrating Persisting and Partnering to Explore the International Market——Exclusive interview with Mr.Zhang Xiaoyu,Vice Chairman of CMIF

It can be said that the auto industry has seen a big shakeup since the breakout of the financial crisis last year, whether in China or in western countries. In order to help the auto industry keep its steady development, the Chinese government formulated the Automobile Industry Restructuring.and Revitalization Plan. Many other related institutes also took measures to assist the development of this industry. The China Auto International Exhibition Tour, organized by the China Machinery Industry Federation （CMIF） and the China Council for the Promotion of International Trade （CCPIT）, has been engaged in introducing China＇s automobiles to the world and promoting the worldwide recognition of Chinese auto brands since 1995. Now, as the 7th China Auto International Exhibition Tour is about to begin, China＇s Foreign Trade interviewed Zhang Xiaoyu, Vice Chairman of CMIF, about the current status of the auto industry in China and China＇s auto exports in 2009.     

Diversification and heterogeneity of investor beliefs

In the paper, we find that diversification reduces the heterogeneity of investor beliefs on firm value. We obtain this finding by comparing not only between diversified and focused firms but also between diversifying and non-diversifying mergers. We also find that the reduced heterogeneity of investor beliefs on a diversified firm relative to its focused peers is negatively associated with its contemporaneous excess value and positively associated with its future excess value. Overall, our results contribute to the understanding about how corporate organization structure affects the heterogeneity of investor beliefs and further firm value.