广东省天然气分布式能源的发展及相关政策研究

基于广东省天然气分布式能源的发展现状,从发展空间、发展条件、示范项目已取得的成果等方面分析了广东省天然气分布式能源的发展环境,总结了目前在相关政策方面存在的问题,如机制设计不合理、政策不配套等,从制定优惠政策、完善法律法规、创新清洁发展工作机制等方面提出了具体建议。     

西部新生代农民工城市就业特征与城市化的政策响应研究

在新生代农民工的“迁移-就业-定居-生活”城市化过程中,其城市就业特征及其相应的经济、社会状态直接影响其在城市的生活状态和行为特征。对以陕西省为重点的西部地区新生代农民工城市就业情况的调查表明：新生代农民工的就业选择趋于多样化,服务业的就业吸纳潜力巨大;就业城市规模选择偏好于所在省份的大中城市;新生代农民工在技能培训和继续教育方面存在显著的需求;城市就业收入成为多数家庭的主要经济来源,多数家庭年收入处于城市中低收入范围;女性新生代农民工劳动保障受到极大忽视。从促进新生代农民工深度城市化的目标来看,需要从发展战略与规划方面做出的城市政策响应包括：提升服务业（特别是现代服务业）对新生代农民工城市就业的吸纳能力;采取多种途径加强对农民工的职业技能培训;以城市居住为核心促进农民工公平公正地城市化进程;加强对女性新生代农民工就业保障和城市化需求的关注。     

第四代技术展望

随着技术与经济全球化，技术预测的合理性，有效性和可操作性等问题再一次提到议事日程上来。本文提出了一种在广义技术创新框架之下，社会，经济，环境的多层次上，硬技术与软技术并重的第四代技术展望理论。     

浅议我国独立董事的产生机制

近年来我国越来越多的公司引入了独立董事制度,但独立董事不独立的现象也越来越普遍。文章指出这种现象的根源在于独立董事制度的产生机制,并提出了3种具体的解决方案。     

非线性控制器在聚丙烯装置上的应用

介绍了Aspentech非线性控制器、Apollo生产控制软件包在200 kt/a聚丙烯装置(第二代国产化环管工艺)上实施先进过程控制项目的过程、技术难点和应用成果,阐述了Apollo生产控制软件包的主要技术特点。     

Assessing the utility of private information in transportation planning studies: A case study of trip generation analysis

The extent to which private information should be used in planning for transportation infrastructure has not been fully resolved. To contribute to this debate, this paper discusses the argument for using private information by presenting a transportation planning case study in which the sample size required to detect a significant difference in two types of residential trip generation rates was reduced. One rate is based on ground counts and the other is based on household surveys. The number of vehicle trips generated by suburban dwelling units over a 24-h period is a critical element in the transportation planning process.When no-private information was used, the rates derived using the two methods were not statistically different. However, the use of private information might lead to different rates. Private information, described herein as individual transportation decisions, is defined by four characteristics: individually identifying (not anonymous); linked to another data source (not aggregated); available to a limited audience (not unlimited); and available for only a specific, socially legitimate use.The potential discrepancy between rates using ground counts and household survey data provides an opportunity to investigate the utility of private information. Simulations with an existing data set were performed to determine the extent to which additional private information could have revealed a discrepancy. The study concluded that the required sample size decreases substantially depending on the amount of private information available. The use of limited private information reduces the required sample size by over 30%. With more private information, the required sample size is reduced by over 90%. Thus, the use of robust statistical tests that is infeasible with only public information is possible with the availability of private data.The significance of this study is the approach presented to evaluate the utility of private information by documenting the tangible benefits, such as reduced sample sizes and reduced data collection costs, that will accrue if it is used. The political cost of acquiring the information can then be addressed, as can extending the approach to other situations where the use of private information is being considered.     

论税法中的第三人代缴责任

纳税义务可以由税收债务人以外的第三人承担,本文从第三人代缴责任的含义、第三人代缴责任的条件、第三人代缴税款的责任范围以及第三人代缴税款后的法律后果等方面对第三人代缴责任进行了论述。     

新老农民工休闲生活的比较研究

本次研究运用问卷调查的科学生活,以芜湖市的农民工为对象,把关注点放在出生于1980年前后的新老农民工休闲生活的比较上,具体涉及到两类人群在休闲时间;休闲观念;休闲类型;休闲满意度等方面的不同之处,进一步探讨芜湖市农民工在休闲方面所存在的一些问题,并对产生这些问题的原因进行分析,试图从中总结出农民工休闲生活的发展趋势,以...     

Economies and Diseconomies: Estimating Electricity Cost Functions

This paper presents estimates of the variable cost function ofelectricity generation. The cost function is estimated using a two dimensional definition of capacity utilization. Because electricity cannot be conveniently stored, generation facilities follow the load across demand cycles. Capacity utilization can be captured empirically in two ways. One is generation relative to capacity when a unit is connected to the system; the other is thepercent of time the unit is disconnected. The estimated cost function shows that both dimensions affect average cost, which generally declines as capacity utilization increases.