国内第二国际马克思主义断代史研究述评

第二国际作为马克思主义发展史中的关键一环,对马克思主义的阐释、传播和捍卫以及国际共产主义运动的发展做出了突出贡献。近年来国内第二国际马克思主义研究,重点聚焦于第二国际理论家方阵内部格局的划分与各派之间理论的斗争和第二国际理论家对马克思主义的阐释路径等问题;呈现出西方马克思主义、苏联马克思主义和中国马克思主义三重批判视阈;灵活运用了批判视阈的融合,宏观与微观、外史与内史相结合,理论与实践接轨等研究方法,开启了国内第二国际研究的新阶段。     

高职国际商务类专业毕业环节考核模式比较研究

随着越来越多的学者对高职院校毕业环节考核模式的合理性和可行性提出质疑,很多高职院校都纷纷开始进行一些新模式的探索和改革.对此就现状开展调查,并从结果入手,对目前高职院校国际商务专业群中所采用的多种考核模式进行分析和比较,探寻真正切合高职教育理念、符合国际商务专业群特点的理想考核模式,并为所有高职文科类专业提供借鉴和参考...     

国际卡收单系统的安全解决方案

针对国际卡收单系统存在的安全性和EMV迁移问题,从信息安全工程角度,描述密钥管理、认证过程和加密机的应用。从系统架构、应用软件、硬件设备和运维管理这几方面,提出国际卡收单系统的安全解决方案。理论分析和实践证明,该软件、硬件和管理相结合的安全解决方案,具有安全性高、适应能力强的特点。     

基于IPC知识结构的专利自动分类方法

基于国际专利分类号的层次结构,利用自身的类别描述信息,建立了不同层次的类别特征向量,结合现有专利进行修正训练,分别在各层次上采用经典的KNN算法实现专利的自动分类。实验结果表明：该方法的分类效果在部、大类、小类层次上表现较好。经过修正训练后的分类性能有所提高。     

Modelling sustainable international tourism demand to the Brazilian Amazon

The Amazon rainforest is one of the world's greatest natural wonders and holds great importance and significance for the world's environmental balance. Around 60% of the Amazon rainforest is located in the Brazilian territory. The two biggest states of the Amazon region are Amazonas (the upper Amazon) and Pará (the lower Amazon), which together account for around 73% of the Brazilian Legal Amazon, and are the only states that are serviced by international airports in Brazil's north region. The purpose of this paper is to model and forecast sustainable international tourism demand for the states of Amazonas, Pará, and the aggregate of the two states. By sustainable tourism is meant a distinctive type of tourism that has relatively low environmental and cultural impacts. Economic progress brought about by illegal wood extraction and commercial agriculture has destroyed large areas of the Amazon rainforest. The sustainable tourism industry has the potential to contribute to the economic development of the Amazon region without destroying the rainforest. The paper presents unit root tests for monthly and annual data, estimates alternative time series models and conditional volatility models of the shocks to international tourist arrivals, and provides forecasts for 2006 and 2007.     

改性偶氮二甲酰胺/水复合发泡在硬质聚氨酯发泡中的应用研究

目的 通过偶氮二甲酰胺(AC)热分解反应释放出发泡用气体,用改性偶氮二甲酰胺/水复合发泡制备无卤素硬质聚氨酯泡沫(RPUF)。探讨改性偶氮二甲酰胺在聚氨酯发泡中的可行性。方法 通过改变体系中改性偶氮二甲酰胺的用量,探讨改性偶氮二甲酰胺对聚醚发泡体系黏度、聚氨酯泡沫力学性能和导热系数的影响。结果 发泡剂的加入能显著降低聚醚体系的黏度,提高发泡物料的流动性,随着改性AC用量的增加,体系黏度逐渐增加,当改性AC的添加量为0.3 g时,体系黏度最低为2 080 mPa.s。当改性AC用量为0.75 g时,聚氨酯泡沫的表观密度为78.65 kg/m³,压缩强度为539.35 kPa,改性AC的加入使得聚氨酯泡沫的导热系数增高,导热系数为0.023 51 W/mK。结论 改性AC的加入能显著提高硬质聚氨酯泡沫的压缩强度,相比纯水发泡,二者复合发泡性能更优异,可以作为无卤素发泡剂应用于聚氨酯发泡。     

基于词汇相似度的IPC与CLC映射

专利作为一种具有特殊性质的文献,包含先进的技术方案,但存在管理困难、相对孤立、使用率低等弊端。针对该问题,定义分类法类目的概念模型,通过计算类目之间的概念相似度,为国际专利分类法与中国图书分类法建立类目映射。在计算类目相似度中引入与类目相关的词汇语义相似度计算,综合考虑类目的上下文环境对类目间关系的影响,降低专利数据的孤立性,实现专利数据与其他期刊数据的交互操作。实验表明,该方法能有效提高类目间相似度计算的准确率。     

ARMAX modelling of international tourism demand

Box–Jenkins (1970) models are often used to capture the autoregressive moving average of past observations of tourist arrivals from Japan to Taiwan and New Zealand. However, other explanatory variables, such as real income in the origin country, have also affected the demand for international travel. The purpose of this paper is to use the ARMAX model to investigate the dynamic relationship between tourism demand and real income of Japan, and to compare the findings with the single-equation model. Unit root tests and diagnostics are performed before estimating the income elasticity of travel demand by Japan for New Zealand and Taiwan based on seasonally unadjusted quarterly data for 1980(1) to 2004(2). The empirical results of the ARMAX model support the economic theory that the demand for international travel is positively related to income of the origin country.     

The Organisation in Ethnography –A Discussion of Ethnographic Fieldwork Programs in CSCW

Ethnography is now one of the key approaches usedwithin the CSCW community to specify the role ofcomputer based systems in work practice. Yet whatethnography involves as a program of inquiries is onlydiscussed in a piecemeal way in the literature. Thispaper attempts to make up for that absence bydescribing one fieldwork program (or programme)developed over a number of projects in whichethnography has been allied with computer systems andwork practice design. The discussions will be ofinterest to both expert practitioners of ethnographyand novices.     

The Great Lakes Region and Bulk Water Exports

Abstract

The article provides an overview of the latest developments in the debate concerning the bulk water export of Great Lakes water. It examines the policy and legal dimensions of this new debate. The policy dimension focuses on the public attention and concern, in Canada, regarding bulk water removals from the Great Lakes basin. This concern has triggered the new Canadian federal legislation banning water exports from the region (Bill C-15). Is this a sign that the Canadian government now embraces a water conservation ethic? Is its position in line with the recent recommendations on the issue of the International Joint Commission (IJC), the joint body created by the United States and Canada to manage its shared waters? The attempt by investors to export water from the Great Lakes basin raises issues regarding Canada's obligations under international and regional trade agreements, most notably the General Agreement on Tariffs and Trade (GATT) and the North American Free Trade Agreement (NAFTA). The article examines the provisions of those two trade agreements in the context of the water export debate in Canada and concludes that increased clarity on Canada/US transboundary water issues is required.