土地开发决策模式与城镇发展——近代英国海滨休闲城镇的启示

近代英国海滨休闲城镇的发展在很大程度上受到土地开发模式的影响和制约 ,不同时期的决策主体 (地主、“改善委员会”和市政当局等 )对土地开发的自发或自觉的决策 ,显示了他们把握机遇的准确程度 ,从而决定了海滨休闲城镇的发展趋向 :起初处于“自发”状态 ;铁路时代则以利用大片土地进行铁路与车站建设为关键 ;后期 ,市政府能否顺应时代、积极有效地介入城镇建设至关重要。有鉴于此 ,在我国城市化过程中应注意城镇土地开发 ,进行系统规划 ,避免无序开发 ,尤其不能听任开发商的“自发”行为 ,这样才能在我国建成一批功能各异、各具特色的生态城镇     

高校院系资料室的建设及其与校图书馆的共建

高等院校的院系资料室是图书系统的组成部分,在承担院系教师和学生查阅资料方面,具有图书馆无可比拟的功能和作用。文章主要分析了高校院系资料室存在的问题以及其解决措施,并明确了院系资料室与图书馆之间的关系,对院系资料室的建设提供了借鉴。     

城市建设引入体验经济--谈大连城市的体验模式

体验经济正以强劲的势态进入人类生活的各个方面 ,城市建设意义上的体验无疑是在一个较大的范围内涉及到城市建设的各个环节 ,城市建设的文化价值已经成为城市经济发展新的增长点。大连城市的体验模式在长期的发展中已经形成了基本的框架 ,对其认真的思考与整理 ,从体验经济理论高度作进一步研究 ,对建立大连城市特色 ,发展城市新型经济格局将起到重要的作用     

统计打假对策探析

统计工作是经济管理的重要基础工作 ,统计信息是制定政策和编制、检查计划的基本依据之一。本文对统计工作中造假的成因、危害进行了剖析 ,提出了相应的打假对策     

公开市场操作公告对中国股市交易行为的影响

基于MRR结构模型,利用广义矩估计方法,从信息不对称和流动性成本角度考察了央行公开市场操作公告对股票市场交易行为的影响。实证结果表明,公开市场操作披露前股票市场的信息不对称程度、流动性成本并未发生显著变化,公开市场操作披露后30分钟内,信息不对称程度增加,流动性成本下降。在考虑了公开市场操作未预期的利率变化具体内容后,所得结果并没有显著变化。     

The State, Institutional Transition and the Creation of New Urban Poverty in China

Since the 1990s, the introduction of a market economy and the process of rapid urbanization have been accompanied by a new urban poverty related to lay‐offs and unemployment as well as by large‐scale rural–urban migration, which is different from the traditional urban poverty of the ‘Three Nos’ (no relatives or dependants, no working capacity and no source of income). This article focuses on new urban poverty in China under market transition and discusses the causes of poverty creation. Instead of considering Chinese new urban poverty only as a result of market mechanisms, it argues that the state as the manipulator of institutions and policies does matter in the creation of new urban poverty, and that the cleavages between the old and new institutions further intensify it. Specifically, the following aspects of the creation of new urban poverty are examined in detail: the adjustment of industrial policy, the reform of state‐owned enterprises, evolution of the household registration system, and the transformation of the welfare state.     

新时期学报资料信息工作之管见

文章从信息时代的需要出发,主要阐述了学报资料搜集的依据、原则和方法,提出了有效的管理办法和开发利用学报资料的新思路。     

一种基于神经网络和决策树的信用评估新方法

分析了数据挖掘在国内外金融领域的应用及研究现状,提出了一种基于神经网络和决策树相结合的信用评估新方法。该方法通过RBF神经网络,进行条件属性裁减,并利用决策树抽取出评估规则。此方法利用神经网络的“黑箱”工作特性,选择重要条件属性,并利用决策树自动生成评估规则,大大提高了信用评估的效率和客观性。     

Rainfall interception by Santa Monica's municipal urban forest

Effects of urban forests on rainfall interception and runoff reduction have been conceptualized, but not well quantified. In this study rainfall interception by street and park trees in Santa Monica, California is simulated. A mass and energy balance rainfall interception model is used to simulate rainfall interception processes (e.g., gross precipitation, free throughfall, canopy drip, stemflow, and evaporation). Annual rainfall interception by the 29,299 street and park trees was 193,168 m³ (6.6 m³/tree), or 1.6% of total precipitation. The annual value of avoided stormwater treatment and flood control costs associated with reduced runoff was $110,890 ($3.60/tree). Interception rate varied with tree species and sizes. Rainfall interception ranged from 15.3% (0.8 m³/tree) for a small Jacaranda mimosifolia (3.5 cm diameter at breast height) to 66.5% (20.8 m³/tree) for a mature Tristania conferta (38.1 cm). In a 25-year storm, interception by all street and park trees was 12,139.5 m³ (0.4%), each tree yielding $0.60 (0.4 m³/tree) in avoided flood control costs. Rainfall interception varied seasonally, averaging 14.8% during a 21.7 mm winter storm and 79.5% during a 20.3 mm summer storm for a large, deciduous Platanus acerifolia tree. Effects of differences in temporal precipitation patterns, tree population traits, and pruning practices on interception in Santa Monica, Modesto, and Sacramento, California are described.     

基于数据挖掘的客户关系分析评价系统

分析功能的深化是客户关系管理(CRM)的一大发展趋势,应用数据挖掘技术建立的CRM分析评价系统,可以对客户的行为以及市场趋势进行有效的分析,为企业的各种决策提供定性和定量的依据。该系统主要模块包括:客户细分模块、客户行为分析模块和市场趋势分析模块。以上各个模块涉及了企业关心的各种客户行为及市场行为,通过各个模块的分析,企业可以辨认出高端客户,理解各种客户行为模式,并掌握市场发展趋势以保证企业在激烈的竞争中立于不败之地。