胜利油田集输系统常见腐蚀研究

分析了胜利油田集输系统常见的腐蚀类型和腐蚀机理，分别阐述了各种局部腐蚀的防护措施，并综合对比了各种防腐方法的优缺点．指出根据不同区块的实际腐蚀环境、介质及工艺条件，因地制宜、有的放矢地制定经济、合理的防腐措施是减缓和控制腐蚀的有效途径。     

The relationship between stock returns and volatility in international stock markets

This study examines the relationship between expected stock returns and volatility in the 12 largest international stock markets during January 1980 to December 2001. Consistent with most previous studies, we find a positive but insignificant relationship during the sample period for the majority of the markets based on parametric EGARCH-M models. However, using a flexible semiparametric specification of conditional variance, we find evidence of a significant negative relationship between expected returns and volatility in 6 out of the 12 markets. The results lend some support to the recent claim [Bekaert, G., Wu, G., 2000. Asymmetric volatility and risk in equity markets. Review of Financial Studies 13, 1–42; Whitelaw, R., 2000. Stock market risk and return: an empirical equilibrium approach. Review of Financial Studies 13, 521–547] that stock market returns are negatively correlated with stock market volatility.     

关于无形资产评估中折现率确定方法的探讨

折现率的预测和确定是无形资产评估中的难点问题之一。由于折现率是影响评估结果准确度的重要参数,所以在当前对高质量资产评估结果的需求日益迫切的背景下,有必要再度探讨无形资产折现率确定方法的相关问题。本文提出应根据引起无形资产评估的具体情况来选择合理的折现率确定方法;同时也提出了无形资产折现率确定方法运用和发展的几点建议:科学性和合理性相结合、静态分析与动态分析相结合、因素分析与模型分析相结合。     

知识转移视角的市场营销专业教学质量提升研究

提高教学质量,培养企业需要的市场营销专业人才已成为当前市场营销教学的重点.为了能够为市场营销专业教学质量提升提供一定的借鉴和参考,从知识转移视角,在构建市场营销专业教学知识转移模型的基础上,提出了相关建议:构建教学团队,提升教师知识存量;精心设计教学内容,尽量实现知识的显性化;构建多种知识转移情境,提升师生关系质量;设计合理的培养计划,提升学生的吸收能力.     

城郊农村可持续发展指标体系构建及发展策略研究——以新乡市城郊农村为例

城乡一体化是解决我国经济转型困难以及缩小城乡差距的重要途径,然而在实际推进过程中受到诸多因素的影响。文章通过实地调研及层次分析法,对河南省新乡市城郊农村地区经济发展现状进行研究,初步构建了城郊农村可持续发展指标体系,评价结果显示,目前影响河南省城郊农村地区可持续发展的主要因素为环境可持续发展及资源可持续利用。并针对指标评价结果从加强政府引导,强化政府监管;改善经济发展模式,提高资源利用率;加强培训力度,注重人才引进;转变农业生产方式,提高农业产业化水平;提高环保意识,注重生态效益等方面提出促进城郊农村可持续发展对策。     

"卡脖子"技术协作攻关的政府择优支持制度研究

"卡脖子"技术是一种"人有我无""受制于人"的共性技术,政府支持对其协作攻关必须以择优制度为保障.由于"卡脖子"技术是一种可对标的特殊共性技术,因而政府择优支持制度具备择优条件,可以有效防范支持制度的政府失灵.政府择优支持制度包含择优技术标准、信息共享、测试平台共享等制度,有利于形成科学技术路线、释放优秀方案潜力,从而降低协作成本、提升合作收益、激发创新投入、实现高效攻关.对科研机构和生产企业攻关协作的博弈模型论证了上述观点.     

Organizational climate for innovation and creative teaching in urban and rural schools

Due to the impact of knowledge-based economies, all countries strive to foster creative education. Research has demonstrated that creativity is influenced both by individual characteristics and by the environment. Previous research examining creative teaching by teachers in Taiwan has typically focused on the relationships between creative teaching and innovative personal characteristics, school leaders’ behaviors, and internal motivation. The purpose of this study was to move beyond prior research to investigate the relationship between creative teaching behaviors and innovation-fostering elements of the organizational climate in schools. In addition, we examined the impact on teacher creativity of urban versus rural school location.     

Environmental Kuznets Curve: Conclusive Econometric Evidence for CO2

This paper begins with a statistical formulation of the Environmental Kuznets Curve (EKC) and discusses the major econometric problems raised in the literature in testing this hypothesis using panel data. A simple t‐test is then presented that avoids these econometric problems. The result from applying the t‐test confirms conclusively the EKC for CO₂ as formulated.