Environmental Performance Assessment of China's Manufacturing

This paper applies the data envelopment analysis approach to contribute to the debate on the environmental performance of China's manufacturing sector. Regional and periodic differences in environmental efficiency, environmental quantity and environmental change indexes in China's manufacturing sector are examined for the period between 1998 and 2002. Within the framework of data envelopment analysis and distance functions, environmental quantity and environmental change indexes are measured as variants of the Malmquist quantity index. The overall environmental efficiency of China's manufacturing sector is very low, indicating substantial potential to reduce pollution emissions in China's manufacturing industries. The results and implications of this study can provide helpful information to improve the environmental performance of China's manufacturing sector.     

鹤煤二矿二部猴车支护整修及保运行方案

鹤煤二矿井下地质条件复杂,井下普遍压力较大、巷道变形严重,如不及时采取措施,二部猴车随时面临停运、瘫痪的可能。通过该方案的实施,整修期间没有出现任何工伤事故,而且巷道整体面貌焕然一新,为今后特殊支护段巷道整修积累了宝贵经验。     

银行机构扩张、支付工具改进与城镇储蓄存款增长——制度变量对货币需求影响的一个分析视角

规模变量、机会成本变量及制度变量是决定货币需求的三个因素,但一直以来货币需求研究主要聚焦于规模变量及机会成本,而较少考虑制度变量的影响。本文以银行机构及支付工具作为制度变量,从理论推导与实证分析两个方面探讨其对货币需求的影响,结论表明改革开放以来商业银行机构扩张及支付工具的改进节省了城镇居民的现金需求,而推动了城镇储蓄存款的增长。     

基于MNL模型的农村正规金融机构信贷供给行为的实证分析

本文利用山东泰安农村地区抽样调查数据，从实证角度考察了我国农村正式金融机构向农户提供信贷供给时的信贷完全满足、信贷完全配给和信贷部分配给行为。结果表明：与金融机构信贷完全满足行为相比，申贷农户家庭自有土地数量越多、面积越大，越有助于其降低遭受金融机构完全信贷配给行为；户主具有非农劳动专业技能和家庭资产价值越高反而促使金融机构对其申贷金额满足度下降。     

330 MW机组氢气泄漏问题的分析及处理

氢冷发电机组的漏氢量大小直接影响到发电机组的安全稳定运行,是发电机安评的一个重要指标.文章介绍了大唐桂冠合山发电有限公司(以下简称合山发电公司)的"北重"产330 MW机组漏氢量超标的原因分析及在检修中对#2机组漏氢分析、处理的经验,对火力发电厂同类型机组处理漏氢问题具有一定的借鉴意义.     

沪宁线货物运输形势和对策

沪宁城际铁路开通后,沪宁线货运能力得到了一定的释放。为更好地有效利用该线能力,在调查沪宁沿线经济发展情况和铁路运输特点的基础上,通过对沪宁线货物运输进行SWOT分析,提出了充分发挥沪宁线货运能力的措施和建议。     

混凝土结合面的受力分析

文章对已建工程的加固、修补还是工程新建中经常遇到在已硬化的混凝土上或已凿除劣化、酥松部分露出坚实的混凝土基层上浇筑新混凝土或砂浆的问题进行了全面的说明.     

Institutional Investor Participation and Stock Market Anomalies

This paper investigates the impact of institutional trading volume on stock market anomalies. The paper proposes a measure that evaluates the percentage of total trading volume of a stock accounted for by institutional trades. The empirical analyses using a large sample of firms from 1980–2005 provide strong evidence that the strength of stock market anomalies such as price momentum, post‐earnings announcement drift, the value premium, and the investment anomaly is decreasing in institutional trading volume. Additionally, the effects of institutional trading volume are stronger than those of institutional ownership, the major measure of institutional investor participation in the finance literature. These findings suggest that institutional trading significantly improves stock price efficiency.     

贫困地区劳务输出监测系统的构建

按世界银行扶贫项目的要求和贫困地区劳务输出的实践,构建了贫困地区劳务输出监测的框架、网络、运行机制及监测方法等监测系统.可以对劳务输出的连续动态过程进行科学的、有序的、规范的监测评估,显示劳务输出的扶贫效果.     

智能建筑与无线网络设计

根据建筑内无线网络、无线通信和LEACH的特点,采用自适应改变簇的大小,依据网络延时,监测网络负载的大小,合理布置无线路由器,在网络需求密集的地区簇内无线路由器的数量减少,降低网络负载。反之,则增加无线路由器,使其充分满足用户对无线网络的需求。实验证明,改进后的算法有效延长网络生存周期。