制作家畜骨架标本脱脂漂白法的改良

通过试验,对制作家畜骨架标本的脱脂漂白法进行了改良。以煮沸的2％—3％Na_2CO_3脱脂和日光曝晒增白,替代了使用有机溶剂脱脂和化学增白剂漂白,其方法简易、经济、安全、实用。经对28具家畜骨架标本和数千枚散骨标本的制作和使用,其制成的骨架标本形态美观、正确、色白、耐用。     

三维绘图软件在“工程制图”课堂教学中的应用

文章结合"工程制图"课程的章节内容以及工科学生的专业特点,就课堂教学过程中引入三维绘图软件进行了探讨,以期实现"工程制图"的融合性教学,在生动教学中调动学生的学习热情,培养其学习兴趣。     

An alternative estimator for multiple characteristics in PPS sampling

The problem considered relates to large-scale sample surveys. A new estimator of population total for the characteristics that are poorly correlated with the selection probabilities has been developed for the PPSWR sampling scheme. The relative efficiency of the proposed estimator has been studied under a super-population model. A numerical investigation into the performance of the estimator has also been made.     

湖南省城市等级体系分析

在一个国家或者区域，因城市所处的内外条件不同会形成城市间不同的职能分工，同时也形成不同的城市规模。利用湖南各市的人口数据，讨论湖南省的城市人口规模体系及分布特征，表明湖南省城市规模呈现相对均衡的等级分布，并分析其首位度不高的形成原因。为了提高城市体系的整体实力，湖南提出了长株潭一体化和“3＋5”城市群的发展策略。     

论循环经济条件下建筑材料的开发与利用

在总结建筑材料开发与利用现状及存在的问题并深入分析其原因的基础上,遵循循环经济"减量化、再使用、再循环"的3R原则,从转变观念意识、加强科技创新、致力体制改革、严格管理等方面,提出了建筑材料开发与利用的对策。     

PRICE‐LEVEL CHANGES AND THE REDISTRIBUTION OF NOMINAL WEALTH ACROSS THE EURO AREA

We show that unexpected price‐level movements generate sizable wealth redistribution in the Euro Area (EA), using sectoral accounts and newly available data from the Household Finance and Consumption Survey. The EA as a whole is a net loser of unexpected price‐level decreases, with Italy, Greece, Portugal, and Spain losing most in per capita terms, and Belgium and Malta being net winners. Governments are net losers of deflation, while the household (HH) sector is a net winner in the EA as a whole. HHs in Belgium, Ireland, Malta, and Germany experience the biggest per capita gains, while HHs in Finland and Spain turn out to be net losers. Considerable heterogeneity exists also within the HH sector: relatively young middle class HHs are net losers of deflation, while older and richer HHs are winners. As a result, wealth inequality in the EA increases with unexpected deflation, although in some countries (Austria, Germany, and Malta) inequality decreases due to the presence of relatively few young borrowing HHs. We document that HHs' inflation exposure varies systematically across countries, with HHs in high‐inflation EA countries holding systematically lower nominal exposures.     

THE DYNAMICS OF CLIMATE AGREEMENTS

This paper analyzes a framework in which countries over time pollute and invest in green technologies. Without a climate treaty, the countries pollute too much and invest too little, particularly if intellectual property rights are weak. Nevertheless, short‐term agreements on emission levels then reduce every country's payoff, since countries invest less when they anticipate future negotiations. If intellectual property rights are weak, the agreement should be tougher and more long‐term. Conversely, if the climate agreement happens to be short‐term or absent, intellectual property rights should be strengthened or technological licensing subsidized.     

控股股东持股比例对企业研发投资强度影响的实证分析

利用《中国工业企业数据库》发布的重工业企业调查数据,基于非参数回归、OLS估计以及Tobit估计的方法研究了控股股东持股比例对企业研发投资强度的影响。研究发现：控股股东持股比例对企业研发投资强度的影响存在门槛效应。股权性质（控股资本类型）、企业年龄对企业研发投资强度的影响并不显著,但企业规模对企业研发投资强度带来显著性影响。文章认为,控股股东持股比例大约保持在50%～80%左右更利于企业技术创新;企业间应加强技术创新合作以形成研发投资的规模效应。     

基于系统动力学第三方直通集配中心模式研究

采用定性分析与系统动力学建模定量研究相结合的研究方法,首先对供应链库存管理的第三方直通集配中心模式做了较为系统的分析和界定;其次,建立了第三方直通集配中心模式下的供应链系统动力学模型;最后,对第三方直通集配中心模式供应链库存管理案例进行了仿真分析,证明了该模式相对分散式VMI模式的比较优势,并对第三方直通集配中心的运营策略提出了优化建议.     

中英合作办学中学生学习行为方式的转变

中外合作办学项目是中外合作办学的一种形式,为广大学子出国深造提供了便利。然而,在国内外双校园合作培养模式下,已习惯了国内高等教育环境的学生能否适应国外高等教育体系是合作办学项目中需要关注的重要问题。以“3+1”中英合作办学项目为例,对英国高等教育管理手段、教学方法以及本科毕业设计(Final Year Project)进行分析,有助于中国学生在英国尽快转变学习方式以顺利完成学业,有助于国内教育阶段对教学改革进行更多有益的思考。