区域瓦斯综合治理工艺研究——以宝雨山矿为例

在煤矿开采过程中,宝雨山矿不断进行着瓦斯防治方面的研究与实践,为区域瓦斯治理工作的开展积累了宝贵经验。近年来,随着矿井的开采,瓦斯涌出量不断增加,该矿针对通风系统进行优化,实施瓦斯抽采,建立瓦斯监控系统,重点强调矿井安全管理模式的转变,实现矿井安全生产和快速发展。     

任重道远:从基本公共服务供给看新型城镇化

随着新型城镇化阶段的到来,基本公共服务作为实现新时期社会公平与正义,保障民生与民权的重要内容登上历史舞台。从逻辑上看,基本公共服务供给水平与城镇化水平之间存在相互促进与制约关系,但实际情况表明:全国有超过半数的省、直辖市基本公共服务供给与城镇化水平脱节;以江苏省13个地级市为例,10年来基本公共服务的供给水平并没有因为新型城镇化发展阶段的到来而稳步上升,却出现了与城镇化率明显的错位不协调与梯度差异,违背了新型城镇化的发展目标。面临着前所未有的机遇与挑战,新型城镇化的发展序幕刚刚拉开,任重而道远。     

Why and how to use vector autoregressive models for quality control: the guideline and procedures

While quality control on multivariate and serially correlated processes has attracted research attentions, a number of very detailed problems need to be overcome in order to construct practical control charts. We suggest guidelines for construction of control charts based on vector autoregressive (VAR) residuals. We discuss why VAR model is reasonable for real processes in nature, the use of VAR models to approximate multivariate serially correlated processes, residual estimation, selecting the number of variables, and selecting appropriate orders, among other issues. In addition, we illustrate an example employing VAR techniques to approximate a multivariate process previously examined and construct a control chart to monitor residuals. Last, we illustrate the potential development and use of the VAR residual chart to assist quality control and improvement.     

企业社会责任的动态演进机制研究

从企业承担社会责任的两个维度出发,结合特定制度及相关因素,厘清企业社会责任的演进机理。企业社会责任行为在相应条件具备时,围绕情境化、概念化、规范化以及定型化四个阶段循环演进,从而形成企业社会责任的动态发展模式。明晰企业社会责任动态演进机制,把握企业社会责任的内在演生特质,为企业更好地履行社会责任提供了路径参照。     

Lineage-based heterogeneity and cooperative behavior in rural China

This paper investigates how lineages, the commonly found organizations in rural villages of China, affect people's intra- and cross-lineage cooperative behavior. We use data from the Chinese Household Income Project Survey 2002, which exclusively contains information about the lineage structure in these villages allowing us to classify three levels of lineage-based heterogeneity. Our identification strategy relies on the exogeneity of lineage-based heterogeneity. We find evidence that people in a village with higher lineage-based heterogeneity are less likely to exhibit reciprocity behavior within lineages or contribute to the provision of public goods that are jointly shared across lineages. The estimation results remain robust to the inclusion of various control variables and additional background characteristics. Finally, we examine a number of other economic outcomes and find that more homogenous villages do better than other types of villages.     

Technological change in energy systems: Learning curves, logistic curves and input-output coefficients

Learning curves have recently been widely adopted in climate-economy models to incorporate endogenous change of energy technologies, replacing the conventional assumption of an autonomous energy efficiency improvement. However, there has been little consideration of the credibility of the learning curve. The current trend that many important energy and climate change policy analyses rely on the learning curve means that it is of great importance to critically examine the basis for learning curves. Here, we analyse the use of learning curves in energy technology, usually implemented as a simple power function. We find that the learning curve cannot separate the effects of price and technological change, cannot reflect continuous and qualitative change of both conventional and emerging energy technologies, cannot help to determine the time paths of technological investment, and misses the central role of R&D activity in driving technological change. We argue that a logistic curve of improving performance modified to include R&D activity as a driving variable can better describe the cost reductions in energy technologies. Furthermore, we demonstrate that the top-down Leontief technology can incorporate the bottom-up technologies that improve along either the learning curve or the logistic curve, through changing input-output coefficients. An application to UK wind power illustrates that the logistic curve fits the observed data better and implies greater potential for cost reduction than the learning curve does.     

浅析公共工程项目可持续发展的实现模式

大型公共项目投资额巨大,专业性、综合性很强,大型公司项目能否顺利完成和发挥预期的投资效益,对所在区域的经济、社会和生态的发展具有重要影响 .在论述大型公共工程可持续发展的实现模式基础上,结合我国大型公共工程建设和管理的现状,探讨对大型公共工程项目的全生命周期管理.     

全球化与我国旅游管理人才培养战略研究

全球化及加入WTO对我国旅游管理人才带来了巨大的挑战和提出了更高的要求.如何培养出适应新形势下旅游业发展需要和社会需求的旅游管理人才成为目前急需解决的问题.本文提出了旅游管理人才培养战略步骤：明确人才培养目标,搞好人才战略规划;合理定位人才层次;学校教育与职业发展规划相结合;旅游教育要求同国际接轨;重视素质教育,培养人才综合素质;注重创新意识和创新能力的培养.     

讨论式教学法在劳动与社会保障法教学中的应用

讨论式教学有别于传统的讲授式教学。为了达到良好的教学效果,讨论的主题应当紧扣劳动与社会保障法课程内容,能够激发学生的讨论热情,难易适中。在讨论过程中,教师应居于主导地位,有效地控制讨论进程,把握讨论方向,避免偏离讨论主题。讨论结束后,教师要及时总结、评价和补充,对涉及的理论或制度问题进行系统的整理和陈述,以达到讨论式教学的目标。     

试论我国城镇住房保障的制度并轨

尝试性地提出住房保障制度并轨的观点,认为这种并轨应该包括短期并轨和长期并轨两个层面.在短期内,应该推进租售并举的经济适用房发展模式,提高租赁型住房保障比重,逐步将租赁型经济适用房、廉租房、公租房并入到租房保障体系;公积金管理实施“准银行式”的模式,实现保障资金的跨区域流动;长期内,应该构建多层次、梯度性、差异性的租房保障体系.同时,推进租房保障资金的准商业化、市场化运行模式,提高保障资金供给的可持续性.