运输包装尺寸标准化研究

通过对运输包装尺寸标准化以及国内外运输包装尺寸系列状况的论述,阐明了运输包装尺寸标准化的重要意义,重点分析了运输包装尺寸系列制定的方法和流程。为运输包装标准化尺寸的制定提供了理论依据。最后提出了基于运输包装尺寸系列的运输包装标准化尺寸取用模型,为运输包装尺寸标准化提供方法依据,促进物流运输行业的规模化、标准化进程。     

试论政府治理模式的变迁及启示

传统的公共行政模式取代早期的行政系统有其必然性,但由此而建立的官僚制随着政府规模的扩张却存在降低公共品供给效率的风险,而且公共部门并没有一种机制可以自发地防范和化解这种风险。西方国家的新公共管理运动通过引入市场机制、塑造企业化的政府对提高公共产品供给效率产生了巨大影响。这启示我们对政府的性质、政府与市场的关系以及公共产品的供给方式进行反思。     

国家——社会关系视角中政府职能转变的目标取向

国家——社会关系的变化直接影响政府职能转变。市场化改革使我国国家与社会的关系由一元化向二元分化与良性互动的方向发展，市民社会和民间力量不断发展壮大。在国家——社会二元分化的背景下转变政府职能要求做到合理界定政府、市场、社会的界限，提升政府能力，实现制度创新，服务行政，培育市民社会等五个方面，并最终把“善治”作为政府职能转变的落脚点和目标取向。     

A neural network approach to the prediction of going concern status

The assessment of a firm's going concern status is not an easy task. To assist auditors, going concern prediction models based on statistical methods such as multiple discriminant analysis and logit/probit analysis have been explored with some success. This study attempts to look at a different and more recent approach—neural networks. In particular, a neural network model of the feedforward, backpropagation type was constructed to predict a firm's going concern status from six financial ratios, using a data set containing 165 non-going concerns and 165 matched going concerns. On an evenly distributed hold-out sample, the trained network model correctly predicted all 30 test cases. The results suggest that neural networks can be a promising avenue of research and application in the going concern area.     

基于增强型概率神经网络的安全态势要素获取

态势要素获取作为整个网络安全态势感知的基础,其质量的好坏将直接影响态势感知系统的性能。针对态势要素不易获取问题,提出了一种基于增强型概率神经网络的层次化框架态势要素获取方法。在该层次化获取框架中,利用主成分分析(PCA)对训练样本属性进行约简并对特殊属性编码融合处理,将其结果用于优化概率神经网络(PNN)结构,降低系统复杂度。以PNN作为基分类器,基分类器通过反复迭代、权重更替,然后加权融合处理形成最终的强多分类器。实验结果表明,该方案是有效的态势要素获取方法并且精确度达到95.53%,明显优于同类算法,有较好的泛化能力。     

A geography of ecotourism in Cambodia: regions,patterns, and potentials

Tourism visits to Cambodia have expanded rapidly, with over 5 million visitors arriving in the country by 2016. Angkor Wat remains the primary tourist attraction, but increasing numbers of tourists also visit ecotourism destinations. This study draws on Weaver’s [(2002). Asian ecotourism: Patterns and themes. Tourism Geographies, 4(2), 153–172] spatial and structural analysis of ecotourism in Asia as an organizing framework to develop a geography of ecotourism in Cambodia. In a comprehensive review of academic publications, reports, online ecotourism clearinghouses, and project websites, 30 Cambodian ecotourism sites were identified based on 5 ecotourism criteria. A content analysis of ecotourism project websites was then conducted to group together ecotourism sites with common characteristics in particular geographic regions. Each site was plotted on a Google Terrain map, and local and regional terrain, land cover, transport, and other physical features were analyzed, supplemented by detailed geographical data from Google Panorama, Earth, and Satellite map functions. Three relatively distinct ecotourism regions were identified: the (a) mangrove and rainforest region, (b) highland trekking region, and (c) wetlands and waterways region. For each region, tourism gateways and ecotourism development challenges and potentials are elaborated. The paper concludes with a discussion of study findings and their implications for ecotourism development in Cambodia.     

制动器拉杆断裂的原因及对策措施

通过对门机起升制动器拉杆断裂现象的分析,提出解决方法、对起升制动器拉杆进行改造,消除门机由于拉杆断裂引起的故障,减少了停工损失。     

工程项目知识管理组织模式研究

知识管理作为一种新型的管理模式与方法,已经被广泛地应用到各个行业中。文章对知识管理组织模式进行了一定程度的探讨,提出了以团队为基础的工程项目知识管理组织,以便在工程项目实施过程中能更有效地进行知识管理。     

Corporate borrowing and profitability in India

This paper examines effects of different types of corporate borrowing on firm profitability in India. We show that in contrast to the conventional thinking on the importance of monitored debt in determining firm performance, what matters more is arm's‐length lending in the form of fixed deposits in influencing firm profitability. We argue that the strategic implications of fixed deposits can be mainly attributed to the fact that they are both unsecured and privately held, which make the creditors associated with this type of debt the most likely to monitor firms' performance. The results suggest that debt structure matters, and it is important to take into account institutional differences and the heterogeneity of debt in the analysis of capital structure on firm performance. Copyright © 2009 John Wiley & Sons, Ltd.     

Trade Policy,Equipment Investment and Growth in India

The relationship between trade policy and economic performance is one of the oldest controversies in economic development. In this paper, we examine an alternative mechanism through which trade reforms may impact on economic growth to those commonly discussed in the literature. This mechanism builds on the link between equipment investment and growth that has been observed in cross-country data. We argue that that in countries which have had highly restrictive trade policies with respect to capital goods, liberalization measures that specifically target capital goods imports may bring about a fall in the relative price of capital goods, leading to an increase in the rate of investment in equipment. Quantifying the link between trade policy, equipment investment and economic growth in the Indian case, we find strong support for this mechanism.