风力机离心调速系统特性分析

文章分析了凤力机离心调速系统的稳定性,指出叶片上承受的气动力矩是影响整个系统稳定性的一个重要因素而不能忽略。     

Carbon Price in China: A CO2 Abatement Cost of Wind Power Perspective

As a result of rapid development of industrialization and urbanization, energy (especially fossil fuels) demand growth is increasing. Hence, China is facing the huge pressure of environmental protection and CO₂ emission reduction. The feed-in tariff (FIT) policy that promotes more wind power to substitute for thermal power and a well-functioning carbon price mechanism can significantly affect CO₂ abatement, and both can work in coordination to achieve emission reduction. Using panel model, we prove that FIT policy is more effective than other policies in promoting more wind power. Also the slowdown of economic growth, energy substitution, technological progress, and CO₂ mitigation requirement can stimulate the expansion of wind power. Additionally, based on the calculation of real abatement cost of wind power, we obtain the provincial and national average of carbon prices (239 CNY/ton and 242 CNY/ton). Specifically, 233-251 CNY/ton will be the range for reasonable carbon price in the future. We find that the carbon prices in this article are higher than those of the emissions trading scheme pilots in 2014 and 2015, due to the relatively high proportion of free allowance. Based on the above conclusions, we proposed some policy suggestions.     

加强离岸股权转让税收管理

离案股权转让涉及税种较多,本文从离岸股权转让涉及的有关税种出发,逐一剖析了离岸股权转让过程中的税收问题,并从税收政策和征管两个方面对加强离案股权转让税收管理提出了建议。     

1959年庐山会议后“共产风”的再次兴起及纠正

1959年庐山会议后,党的经济工作重心由纠"左"走向了反右,农村地区此前被一度纠正的"共产风"再次泛滥,给农民的利益造成了很大的损失,也给农村经济的恢复发展带来了很大的障碍。毛泽东和党中央在发现问题之后,果断出台措施,指挥各地大战"共产风",并坚决予以退赔平调的物资财物,缓和了党与农民的紧张关系。     

电子政务的实施与政风建设问题研究

随着信息化的不断推进,注定电子政务会成为政府日常行政管理的必要手段。本文将首先分析电子政务政风建设的意义,探讨中国电子政务政府政风改革的效应,并在此基础上提出电子政务改革建设的对策,从而进一步了解电子政务的在中国的现状及发展。     

引进先进技术,推动我国风能发展突飞猛进——广东明阳风电产业集团有限公司国际合作成果调研

风能是理想的清洁新能源，风靡全球。但风力发电在国内起步较晚，与国外成熟技术相差很大。2005年开始，明阳风电产业集团有限公司通过与德国合作，联合开发出兆瓦级系列风机，并成功产业化，与此同时凭借优质产品，建立了强大客户基础，以风力发电整机为龙头，打造了一条核心部件国产化的产业链，为我国风能的飞速发展做出了贡献，也为促进地区新能源经济发挥了龙头企业的重要作用。对该合作项目成果进行了详尽介绍，希望对国内企业开展国际合作有所帮助。     

Farmers, Vertical Coordination, and the Restructuring of Dairy Supply Chains in Central and Eastern Europe

The combination of transition and globalization since the early 1990s has caused dramatic changes in the dairy chains in Central and Eastern Europe. This paper uses survey evidence from several Central and East European countries to document the growth of vertical coordination in the dairy chain, its relationship with policy reforms, its effects and the implications for small farms. Evidence suggests that in several countries small dairy farms have benefited from vertical coordination processes by providing them access to inputs and higher value markets.     

Comparative Efficiency of Family and Corporate Farms: Does Family Labour Matter?

We examine the comparative efficiency of family relative to corporate farms, using FADN data for the Czech Republic, Hungary, Romania and Spain. We estimate a non‐parametric non‐separable farm production function, and derive efficiency scores for both family and corporate farms. We decompose efficiency into two distinct sources – organisational differences and management capabilities. We find evidence for organisational efficiency gains from family farming, relative to corporate farming, and these appear to increase with family involvement. However, with regard to management capabilities, family farms do not compare so favourably. Furthermore, family involvement does not seem to have any systematic effect on the efficiency derived from management capabilities. Our findings suggest that further investigation of the way family farms employ and build management capabilities is needed to substantiate any ‘superiority’ claims.     

Monetary Policy and Financial Stability: Cross‐Country Evidence

We explain the heterogeneous response of central banks to financial stability risks based on a financial stability orientation (FSO) index, which reflects statutory, regulatory, and discretionary components of central banks' monetary policy frameworks. Our baseline results from a cross‐country panel of modified Taylor rules suggest that central banks with a high FSO increase their policy rates in response to elevated financial stability risks by 0.27 percentage points more than central banks with a low orientation. Back‐of‐the‐envelope calculations suggest that this policy rate differential translates into a reduced crisis probability but also into considerably lower inflation and output growth rates.     

风成像迈克尔逊干涉仪的研究

对探测大气风场的迈克尔逊成像干涉仪发展状况作了详细的分析,从WINDII发展起来的MIMI以及PAMI和NSPWII的改进,其性能、技术特性的创新改良,并对它们的优缺点加以分析比较。