消费者品牌转换驱动因素研究:基于绿色营销视角

消费者在品牌偏好上由普通产品转向绿色产品的品牌转换行为日趋明显和频繁.在消费者品牌选择中影响较大的驱动因素有基本因素、强化因素和深化因素三种类型.绿色营销的影响表现为:修正品牌转换驱动因素的强度;优化品牌转换驱动因素的内容;强化品牌转换驱动因素的影响力度.绿色营销的作用过程为:可利用驱动因素,建立和完善绿色消费意识,修正消费者品牌决策标准,培养消费者品牌忠诚度.     

经济因素在新加坡大学人才汇集中的作用及启示

经济因素是新加坡高校汇集世界一流人才主要的原因。新加坡高校利用充足经费汇集人才:兴建完美的校园环境,创造一流的学习科研条件,向人才提供丰厚的工资福利待遇。中国高校可以从中得到一定启示:要加大教育投入、营造良好环境及提高人才工资福利待遇。     

CHARACTERISTICS OF PRESSURE DROP AND CORRELATION OF FRICTION FACTORS FOR SINGLE-PHASE FLOW IN ROLLING HORIZONTAL PIPE

Gas-liquid two-phase flow occurs increasingly in some dynamic devices operating in the oceanic condition. The relative data are limited with respect to flow characteristics, so the present study is to investigate systematically single-phase pressure drop, and to develop the theory for frictional factor under the rolling condition. Using deionized water as the test fluid, a series of experiments of single–phase flow were conducted in pipe with the inner diameter of 34.5 mm. The test section was horizontally settled on the rolling apparatus, and its regularity was similar to simple harmonic motion. It is found that the pressure drop during rolling motion fluctuate with the change of the rolling period and rolling angle, which is significantly different from fluid motion in a steady state. By the contrast between experiment results and stable-state theory values, existing correlations can not predict present frictional factor very well. Therefore, in the present article, the single-phase frictional factor is correlated with the Reynolds number for rolling motion, and its computated results agree well with experimental data.     

基于床面形态的泥沙输移模式及其在黄河下游的应用

冲积河流系统中,水流在不规则床面上产生的漩涡对泥沙悬浮效率影响很大.基于漩涡流的运动特征及床面形态控制数m,本文研究了水流阻力与床面形态运动之间的关系.同时,在Bagnold泥沙悬浮效率(η_(sl))概念的基础上,提出了床沙质输沙能力公式,对其中的η_(sl)C_*进行了深入研究,建立的η_(sl)C_*与1/m的关系,能够反映床面形态由低能态到高能态区的发展过程.研究提出的输沙公式,经黄河下游调水调沙试验等实测资料验证表明,计算结果与实测值特别是相对平衡条件下的实测值吻合较好.在输沙能力公式研究中引入反映床面形态控制参数是一种新的尝试,该方法在研究中显示出较大的发展潜力.     

截流钢筋笼的稳定性及其计算方法

对实践中常用到的正六面体钢筋笼的稳定性从质量、形状以及有无垫底材料等方面进行了试验研究及工程实例验证。首次拟合提出了考虑其形状因素、河床糙度因素的正六面体钢筋笼止动流速和起动流速的计算公式,经试验验证具有较高的计算精度和实用性。此外,对四面体钢筋笼的稳定性也进行了试验研究,研究表明:四面体钢筋笼用于截流抛投这类止动问题的工程时,其止动稳定性明显优于相同质量的正六面体钢筋笼;而对于护底等起动问题的工程,两者起动稳定性差别不大。     

基于极限平衡法的折线形滑坡体稳定性分析

应用极限平衡法推导出当无粘性土坡部分浸水时,其滑动面为两直线组成的折线形滑动面稳定安全系数的计算模型,并提出确定最小安全系数以及相应滑动面的方法。通过实例分析表明,其计算结果符合工程实际。     

浅谈龙口水利枢纽电站机组功率因数选择

本文主要介绍了处于电网末端的龙口水利枢纽100MW机组功率因数与电网要求产生的矛盾和解决的措施。     

Sewers,wastewater and newspapers: the early environmental debate on water pollution in Turku,Finland, 1887–1934

Abstract

A century ago, city dwellers became increasingly aware of urban environmental problems caused by the waste products of industry and the growing population. Like elsewhere in Europe, water pollution became an acute issue also in the city of Turku, in south west Finland, The sewer system built after 1895 discharged all the municipal and rapidly increasing industrial wastewater untreated into the River Aura in the centre of the city, As a result, the quality of the river water worsened rapidly, and the first complaint on this was published in the local newspaper in 1899. In this study we document the press debate on river water quality and wastewater problems in the local newspapers of Turku for the period from 1887 to 1934, when the plan for a wastewater treatment plant was finally completed (the plant was, however, not built until 1966). The failure of the city administrators to present any solution to the river pollution problem caused the first major public environmental debate in the city at the turn of the 20^th century. Our results show that (1) sewers were recognized by newspapers as the primary cause of worsened river water quality, (2) the necessity of a wastewater treatment plant was understood long before the actual plan was drawn up, (3) the local industries were hardly ever criticized in public for water pollution, and (4) the initiative for improvements was considered to be the responsibility of the city administrators. The debate in the local press was often hectic, many decades before the 1960s, when the environmental debate is commonly said to have started.     

工业新增利润来源及其影响因素：基于企业数据的经验研究

本文利用企业数据，对我国1998-2005年工业企业的新增利润来源从不同角度进行了分析．并且进一步将收益率的变化分解为全要素生产率的变动和分配格局的变动．对正确理解这段时期工业利润率的变化提供了微观层面的解释。本文发现。在考察期内工业利润的增长是结构性的．重工业对工业利润增长贡献了70％以上：采掘业和原材料工业利润率提高的关键因素是产品价格的大幅上涨．而轻工业和机械工业收益率的改善主要来自于生产率水平的提高：工业部门平均工资水平增速小于GDP增速．行业间的工资水平差异较大．大部分劳动者的工资增速较慢．利润的高速增长很大程度上是以工资的缓慢增长为代价的。     

我国地区全要素生产率与人力资本构成

考虑到人力资本组成部分的异质性,本文研究了全要素生产率(TFP)与人力资本构成的关系,并运用Dynamic Panel Data一阶差分GMM估计方法对1982—2004年我国28个省区市的面板数据进行了实证检验。实证结果表明,只有接受过高等教育的人力资本部分对TFP才有显著的促进作用。把人力资本分解为不同的组成部分有助于深化我们对TFP和人力资本的理解,还可以使我们对现有文献中人力资本与产出的一些争议提供解释。