浅析提高效能建设的主要途径

效能建设是以不断提高效能为目标的,对与之相关的组织体系、运行机制、理念作风、规章制度、服务模式、人员素质等进行全面优化和持续改进的系统性活动。应当建立科学的工作目标体系、以责任制为基础的管理监督机制和考核体系,简化服务程序,从主客观两方面激发人的潜能,提升工作效能。     

会计信息透明度对企业投资效率的影响

以深交所A股上市公司为研究样本,运用多元回归方法考察会计信息透明度对企业投资效率的影响,从资源配置的角度揭示会计信息透明度高低给上市公司带来的经济后果.实证结果表明:会计信息透明度与企业投资过度及投资不足显著负相关,即高质量会计信息能减少中国上市公司的投资过度及投资不足行为,从而增加投资效率.存在较多融资约束时,会计信息透明度与投资不足行为的负相关性更显著;自由现金流量较多时,会计信息透明度与投资过度行为的负相关性更显著.因此会计信息透明度提高能对资源优化配置产生正向促进作用.     

技术效率及其在图书馆绩效评价中的应用现状

介绍了技术效率的定义、测定原理及技术效率在国内外图书馆界的应用成果,并概括了已有研究成果的特点(确定性前沿面的应用多于随机前沿面的应用,投入型技术效率的测定多于产出型技术效率的测定,国外研究水平超过国内研究水平),分析了产生这些特点的原因。     

饲料蛋白质水平对曼氏无针乌贼生长性能和饲料利用率的影响

探讨了配合饲料中不同蛋白质水平对曼氏无针乌贼生长性能和饲料利用率的影响.试验以白鱼粉为主要蛋白源,配制饲料蛋白质水平分别为31.3%、36.0%、41.6%、45.9%和51.5%的5种饲料,对平均初始体重为（1.65±0.20）g的曼氏无针乌贼进行为期60 d的饲养实验.结果表明：P4和P5组曼氏无针乌贼的相对增重率、特定生长率、饲料转化率和成活率均显著高于其他实验组（P〈0.05）;P4和P5组曼氏无针乌贼的蛋白质效率显著高于P2和P3组（P〈0.05）;这两组曼氏无针乌贼的肥满度也显著高于P1和P2组（P〈0.05）;P3组曼氏无针乌贼的肝体比显著低于其他实验组（P〈0.05）,但其他实验组之间差异不显著（P〉0.05）.综上结果,认为,在该实验条件下,曼氏无针乌贼配合饲料中蛋白质适宜水平为45.9%～51.5%.     

湖南各市经济发展效率的实证分析——基于超效率DEA模型

文章从被评价单元间的相对效率分析着手,利用统计分析方法选择指标,运用数据包络分析（DEA）方法中的超效率DEA模型,对湖南省14个城市经济发展相对有效性进行了较为全面而客观的评价。根据实证分析的情况,提出提升湖南各市经济发展效率的对策建议。     

后危机时代中国外向型制造业存在的问题和发展对策

在后危机时代里,中国外向型制造业正面临着发达国家"再工业化"、新兴国家"同质竞争"、出口贸易环境恶化、订单持续减少、人民币汇率波动幅度扩大等一系列挑战。中国外向型制造业应针对自身存在的突出问题,采取创建以企业为主导的创新机制、开展源创新、推行服务型制造、促进技术升级、创新工业设计、提高员工敬业度、提升管理效能等措施,再造"中国制造"的"新比较优势"。     

零价铁去除含铀废水中的铀

通过序批实验,研究了零价铁（ZVI）对合铀废水中铀的去除效果,考察了零价铁投加量、U初始浓度、溶液pH、温度及反应时间等因素的影响,结果表明ZVI对含铀废水中的U（Ⅵ）有较好的去除效果,零价铁的投加量、溶液的pH和U（Ⅵ）的初始浓度对铀的去除率影响较大,投加量为0．05g·（50mL）^-1,pH=4时U（Ⅵ）的去除效率最佳,能达到98．5％,而温度对其影响则相对较小．SEM和XRD对零价铁表征表明在反应过程中发生了铁表面的腐蚀以及新的晶体的形成,零价铁处理含铀废水的主要机制可能为UO2^2＋的还原沉淀．     

Trigger efficiencies at BESⅢ

Trigger efficiencies at BESⅢ were determined for both the J/ψ and ψ＇ data taking of 2009. Both dedicated runs and physics datasets are used; efficiencies are presented for Bhabha-scattering events, generic hadronic decay events involving charged tracks, dimuon events and ψ＇→π＋π-J/ψ, J/ψ→ 1＋1- events.The efficiencies are found to lie well above 99% for all relevant physics cases, thus fulfilling the BESⅢ design specifications.     

Optimization of extinction efficiency of gold‐coated polystyrene bead substrates improves surface‐enhanced Raman scattering effects by post‐growth microwave heating treatment

We report a novel post‐growth microwave treatment approach to selectively modify the surface morphologies of gold (Au) films coated on the polystyrene (PS) bead substrates for effectively improving the surface‐enhanced Raman scattering (SERS) effect on the analytes. The discrete dipole approximation (DDA) model was introduced to evaluate the enhancement effects by calculating the localized electromagnetic field distribution and extinction efficiency based on the sizes of the trenches and voids, and the surface roughness of the modified Au–PS bead substrates. The SERS performance of microwave‐modified Au–PS substrates on rhodamine 6G (Rh 6G) and saliva yields at least 10‐fold improvements in SERS intensities compared to the as‐grown substrates, which is also in agreement with theoretical predictions by DDA modeling. This work demonstrates both experimentally and theoretically the efficacy of the microwave heating treatment on modifying the Au–PS bead substrates for the realization of high SERS performance in biomedical applications. Copyright © 2009 John Wiley & Sons, Ltd.     

Analysis of market efficiency for the Shanghai stock market over time

In this paper, we analyze market efficiency for the Shanghai stock market over time using a model-free method known as multifractal detrended fluctuation analysis. Through analyzing the change of scale behavior, we find that the price-limited reform improved the efficiency in the long term, but the influence in the short term was very minor. Employing the method of moving window, using three different measures we find that the Shanghai stock market became more and more efficient after the reform. We also implement the same procedure on volatility series and find the evidence of inefficiency.