我国海洋强国战略下的政府海洋管理职能定位

党的十八大报告提出“维护国家海洋权益,建设海洋强国”的口号,这是党中央首次从战略的高度在全国代表大会报告中全面阐述我国海洋事业发展的总体思路。与此同时,“海洋强国”战略对我国政府海洋管理也提出了新的挑战,转变政府海洋管理职能,实现政府海洋管理的体制机制创新成为了未来实施海洋战略的必由之路。     

矿井供电系统防越级跳闸应用与试验

矿井供电系统防越级跳闸技术研究成果于2014年10月在付煤公司35/6KV变电所、井下中央变电所、南翼集中变电所、北翼集中变电所、北翼一变、东四一变、东四三变以及各变电所外围需要装表计量的配电点得到全面应用。     

伺服驱动器功率开关管故障检测仪设计

以TMS320LF2407A DSP作为核心处理器,设计了一种基于电机电流信号分析法的伺服驱动器功率开关管故障检测仪。该检测仪使用了小波多分辨率分析的方法从伺服驱动器的输出电流信号中提取开关管开路故障特征向量。实验结果表明了所设计检测仪的可行性和有效性。     

核电装备制造业供应风险的识别

在对供应风险形成机理探讨的基础上,构建核电装备制造业供应风险的识别模型,以双方的企业能力与合作意愿为准则,确立供应风险的影响因素指标体系。对国内某家重点核电装备制造企业及其60家供应商进行问卷调研及深度访谈,应用相关分析的方法验证理论假设。实证研究的结论表明,大部分指标通过了验证,被接受为供应风险的影响因子,另有一部分指标因为显著性低而被拒绝。     

劳动力全球化视角下的中国国际竞争力变化——来自亚洲新兴国家的比较

本文从劳动力全球化视角,根据相对劳动成本平价模型,以美国为比较基准,选择东亚4国和印度为比较对象,对1991—2008年的6国相对劳动平价、实际汇率变动和相对劳动成本变动做了系列研究。研究表明,就全时期而言,中国的实际汇率与基期相比已处于升值状态,而其他发展中国家贬值程度扩大;分时期看,在东南亚金融危机前,中国具有相对劳动成本优势。东南亚金融危机后,劳动成本优势持续下降。本次金融危机后,国际竞争力继续恶化。根据研究结果,认为人民币不具升值空间,保持汇率稳定是当前的最优策略。     

Bush v. Gore and the Effect of New Source Review on Power Plant Emissions

New Source Review (NSR) is a Clean Air Act regulation that requires electric utilities to meet emission standards when making modifications to existing power plants. The regulation increases the cost of replacing worn out parts, and limits the firm’s scope of potential capital investments. Such restrictions may lead to greater retirements and lower utilization, adversely affecting profits. Prior to the 2000 presidential election, investors expected Bush to have a narrower interpretation of NSR than Gore. Therefore, we use changes in stock prices to estimate the effect on profits of differences in NSR policy. Our results indicate that investors expected the average boiler to be $38 million more valuable under the Bush administration. Over the boilers’ lifetimes, the additional utilization will have increased emissions by 19 million tons of sulfur dioxide, 5.9 million tons of nitrogen oxides and 980 million tons of carbon dioxide, relative to natural gas generation.      

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.     

行政不当行为理论探讨

对行政行为的研究历来是学者们关注的热点问题,其中不乏对行政不当行为之探讨,但大多没有对此进行深入或系统的研究,对不当行为的认识也不一致,还存在着很多误区。深入研究行政不当行为对于行政责任的认定等都具有重要意义。基于此目的而对行政不当的概念、特征以及效力作了分析与探讨,以期使理论界和实务界对此有一个明确的认识。